diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index 67310fbbb7df..c2a0871280a0 100644
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -31,7 +31,6 @@ Features which OCFS2 does not support yet:
- quotas
- Directory change notification (F_NOTIFY)
- Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)
- - POSIX ACLs
Mount options
=============
@@ -79,3 +78,5 @@ inode64 Indicates that Ocfs2 is allowed to create inodes at
bits of significance.
user_xattr (*) Enables Extended User Attributes.
nouser_xattr Disables Extended User Attributes.
+acl Enables POSIX Access Control Lists support.
+noacl (*) Disables POSIX Access Control Lists support.
diff --git a/fs/Kconfig b/fs/Kconfig
index ff0e81980207..f9b6e2979aaa 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -189,6 +189,8 @@ config OCFS2_FS
select CONFIGFS_FS
select JBD2
select CRC32
+ select QUOTA
+ select QUOTA_TREE
help
OCFS2 is a general purpose extent based shared disk cluster file
system with many similarities to ext3. It supports 64 bit inode
@@ -258,15 +260,14 @@ config OCFS2_DEBUG_FS
this option for debugging only as it is likely to decrease
performance of the filesystem.
-config OCFS2_COMPAT_JBD
- bool "Use JBD for compatibility"
+config OCFS2_FS_POSIX_ACL
+ bool "OCFS2 POSIX Access Control Lists"
depends on OCFS2_FS
+ select FS_POSIX_ACL
default n
- select JBD
help
- The ocfs2 filesystem now uses JBD2 for its journalling. JBD2
- is backwards compatible with JBD. It is safe to say N here.
- However, if you really want to use the original JBD, say Y here.
+ Posix Access Control Lists (ACLs) support permissions for users and
+ groups beyond the owner/group/world scheme.
endif # BLOCK
@@ -303,6 +304,10 @@ config PRINT_QUOTA_WARNING
Note that this behavior is currently deprecated and may go away in
future. Please use notification via netlink socket instead.
+# Generic support for tree structured quota files. Seleted when needed.
+config QUOTA_TREE
+ tristate
+
config QFMT_V1
tristate "Old quota format support"
depends on QUOTA
@@ -314,6 +319,7 @@ config QFMT_V1
config QFMT_V2
tristate "Quota format v2 support"
depends on QUOTA
+ select QUOTA_TREE
help
This quota format allows using quotas with 32-bit UIDs/GIDs. If you
need this functionality say Y here.
diff --git a/fs/Makefile b/fs/Makefile
index e6f423d1d228..c830611550d3 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -54,6 +54,7 @@ obj-$(CONFIG_GENERIC_ACL) += generic_acl.o
obj-$(CONFIG_QUOTA) += dquot.o
obj-$(CONFIG_QFMT_V1) += quota_v1.o
obj-$(CONFIG_QFMT_V2) += quota_v2.o
+obj-$(CONFIG_QUOTA_TREE) += quota_tree.o
obj-$(CONFIG_QUOTACTL) += quota.o
obj-$(CONFIG_PROC_FS) += proc/
diff --git a/fs/dquot.c b/fs/dquot.c
index c237ccc8581c..61bfff64e5af 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -211,8 +211,6 @@ static struct hlist_head *dquot_hash;
struct dqstats dqstats;
-static void dqput(struct dquot *dquot);
-
static inline unsigned int
hashfn(const struct super_block *sb, unsigned int id, int type)
{
@@ -415,6 +413,17 @@ out_dqlock:
return ret;
}
+void dquot_destroy(struct dquot *dquot)
+{
+ kmem_cache_free(dquot_cachep, dquot);
+}
+EXPORT_SYMBOL(dquot_destroy);
+
+static inline void do_destroy_dquot(struct dquot *dquot)
+{
+ dquot->dq_sb->dq_op->destroy_dquot(dquot);
+}
+
/* Invalidate all dquots on the list. Note that this function is called after
* quota is disabled and pointers from inodes removed so there cannot be new
* quota users. There can still be some users of quotas due to inodes being
@@ -463,11 +472,46 @@ restart:
remove_dquot_hash(dquot);
remove_free_dquot(dquot);
remove_inuse(dquot);
- kmem_cache_free(dquot_cachep, dquot);
+ do_destroy_dquot(dquot);
}
spin_unlock(&dq_list_lock);
}
+/* Call callback for every active dquot on given filesystem */
+int dquot_scan_active(struct super_block *sb,
+ int (*fn)(struct dquot *dquot, unsigned long priv),
+ unsigned long priv)
+{
+ struct dquot *dquot, *old_dquot = NULL;
+ int ret = 0;
+
+ mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
+ spin_lock(&dq_list_lock);
+ list_for_each_entry(dquot, &inuse_list, dq_inuse) {
+ if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags))
+ continue;
+ if (dquot->dq_sb != sb)
+ continue;
+ /* Now we have active dquot so we can just increase use count */
+ atomic_inc(&dquot->dq_count);
+ dqstats.lookups++;
+ spin_unlock(&dq_list_lock);
+ dqput(old_dquot);
+ old_dquot = dquot;
+ ret = fn(dquot, priv);
+ if (ret < 0)
+ goto out;
+ spin_lock(&dq_list_lock);
+ /* We are safe to continue now because our dquot could not
+ * be moved out of the inuse list while we hold the reference */
+ }
+ spin_unlock(&dq_list_lock);
+out:
+ dqput(old_dquot);
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
+ return ret;
+}
+
int vfs_quota_sync(struct super_block *sb, int type)
{
struct list_head *dirty;
@@ -479,7 +523,7 @@ int vfs_quota_sync(struct super_block *sb, int type)
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (type != -1 && cnt != type)
continue;
- if (!sb_has_quota_enabled(sb, cnt))
+ if (!sb_has_quota_active(sb, cnt))
continue;
spin_lock(&dq_list_lock);
dirty = &dqopt->info[cnt].dqi_dirty_list;
@@ -504,8 +548,8 @@ int vfs_quota_sync(struct super_block *sb, int type)
}
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
- if ((cnt == type || type == -1) && sb_has_quota_enabled(sb, cnt)
- && info_dirty(&dqopt->info[cnt]))
+ if ((cnt == type || type == -1) && sb_has_quota_active(sb, cnt)
+ && info_dirty(&dqopt->info[cnt]))
sb->dq_op->write_info(sb, cnt);
spin_lock(&dq_list_lock);
dqstats.syncs++;
@@ -527,7 +571,7 @@ static void prune_dqcache(int count)
remove_dquot_hash(dquot);
remove_free_dquot(dquot);
remove_inuse(dquot);
- kmem_cache_free(dquot_cachep, dquot);
+ do_destroy_dquot(dquot);
count--;
head = free_dquots.prev;
}
@@ -558,7 +602,7 @@ static struct shrinker dqcache_shrinker = {
* NOTE: If you change this function please check whether dqput_blocks() works right...
* MUST be called with either dqptr_sem or dqonoff_mutex held
*/
-static void dqput(struct dquot *dquot)
+void dqput(struct dquot *dquot)
{
int ret;
@@ -584,7 +628,7 @@ we_slept:
/* We have more than one user... nothing to do */
atomic_dec(&dquot->dq_count);
/* Releasing dquot during quotaoff phase? */
- if (!sb_has_quota_enabled(dquot->dq_sb, dquot->dq_type) &&
+ if (!sb_has_quota_active(dquot->dq_sb, dquot->dq_type) &&
atomic_read(&dquot->dq_count) == 1)
wake_up(&dquot->dq_wait_unused);
spin_unlock(&dq_list_lock);
@@ -625,11 +669,17 @@ we_slept:
spin_unlock(&dq_list_lock);
}
+struct dquot *dquot_alloc(struct super_block *sb, int type)
+{
+ return kmem_cache_zalloc(dquot_cachep, GFP_NOFS);
+}
+EXPORT_SYMBOL(dquot_alloc);
+
static struct dquot *get_empty_dquot(struct super_block *sb, int type)
{
struct dquot *dquot;
- dquot = kmem_cache_zalloc(dquot_cachep, GFP_NOFS);
+ dquot = sb->dq_op->alloc_dquot(sb, type);
if(!dquot)
return NODQUOT;
@@ -646,16 +696,34 @@ static struct dquot *get_empty_dquot(struct super_block *sb, int type)
return dquot;
}
+/*
+ * Check whether dquot is in memory.
+ * MUST be called with either dqptr_sem or dqonoff_mutex held
+ */
+int dquot_is_cached(struct super_block *sb, unsigned int id, int type)
+{
+ unsigned int hashent = hashfn(sb, id, type);
+ int ret = 0;
+
+ if (!sb_has_quota_active(sb, type))
+ return 0;
+ spin_lock(&dq_list_lock);
+ if (find_dquot(hashent, sb, id, type) != NODQUOT)
+ ret = 1;
+ spin_unlock(&dq_list_lock);
+ return ret;
+}
+
/*
* Get reference to dquot
* MUST be called with either dqptr_sem or dqonoff_mutex held
*/
-static struct dquot *dqget(struct super_block *sb, unsigned int id, int type)
+struct dquot *dqget(struct super_block *sb, unsigned int id, int type)
{
unsigned int hashent = hashfn(sb, id, type);
struct dquot *dquot, *empty = NODQUOT;
- if (!sb_has_quota_enabled(sb, type))
+ if (!sb_has_quota_active(sb, type))
return NODQUOT;
we_slept:
spin_lock(&dq_list_lock);
@@ -682,7 +750,7 @@ we_slept:
dqstats.lookups++;
spin_unlock(&dq_list_lock);
if (empty)
- kmem_cache_free(dquot_cachep, empty);
+ do_destroy_dquot(empty);
}
/* Wait for dq_lock - after this we know that either dquot_release() is already
* finished or it will be canceled due to dq_count > 1 test */
@@ -820,7 +888,7 @@ static void drop_dquot_ref(struct super_block *sb, int type)
}
}
-static inline void dquot_incr_inodes(struct dquot *dquot, unsigned long number)
+static inline void dquot_incr_inodes(struct dquot *dquot, qsize_t number)
{
dquot->dq_dqb.dqb_curinodes += number;
}
@@ -830,9 +898,10 @@ static inline void dquot_incr_space(struct dquot *dquot, qsize_t number)
dquot->dq_dqb.dqb_curspace += number;
}
-static inline void dquot_decr_inodes(struct dquot *dquot, unsigned long number)
+static inline void dquot_decr_inodes(struct dquot *dquot, qsize_t number)
{
- if (dquot->dq_dqb.dqb_curinodes > number)
+ if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
+ dquot->dq_dqb.dqb_curinodes >= number)
dquot->dq_dqb.dqb_curinodes -= number;
else
dquot->dq_dqb.dqb_curinodes = 0;
@@ -843,11 +912,12 @@ static inline void dquot_decr_inodes(struct dquot *dquot, unsigned long number)
static inline void dquot_decr_space(struct dquot *dquot, qsize_t number)
{
- if (dquot->dq_dqb.dqb_curspace > number)
+ if (sb_dqopt(dquot->dq_sb)->flags & DQUOT_NEGATIVE_USAGE ||
+ dquot->dq_dqb.dqb_curspace >= number)
dquot->dq_dqb.dqb_curspace -= number;
else
dquot->dq_dqb.dqb_curspace = 0;
- if (toqb(dquot->dq_dqb.dqb_curspace) <= dquot->dq_dqb.dqb_bsoftlimit)
+ if (dquot->dq_dqb.dqb_curspace <= dquot->dq_dqb.dqb_bsoftlimit)
dquot->dq_dqb.dqb_btime = (time_t) 0;
clear_bit(DQ_BLKS_B, &dquot->dq_flags);
}
@@ -1023,10 +1093,11 @@ static inline char ignore_hardlimit(struct dquot *dquot)
}
/* needs dq_data_lock */
-static int check_idq(struct dquot *dquot, ulong inodes, char *warntype)
+static int check_idq(struct dquot *dquot, qsize_t inodes, char *warntype)
{
*warntype = QUOTA_NL_NOWARN;
- if (inodes <= 0 || test_bit(DQ_FAKE_B, &dquot->dq_flags))
+ if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) ||
+ test_bit(DQ_FAKE_B, &dquot->dq_flags))
return QUOTA_OK;
if (dquot->dq_dqb.dqb_ihardlimit &&
@@ -1058,11 +1129,12 @@ static int check_idq(struct dquot *dquot, ulong inodes, char *warntype)
static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *warntype)
{
*warntype = QUOTA_NL_NOWARN;
- if (space <= 0 || test_bit(DQ_FAKE_B, &dquot->dq_flags))
+ if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) ||
+ test_bit(DQ_FAKE_B, &dquot->dq_flags))
return QUOTA_OK;
if (dquot->dq_dqb.dqb_bhardlimit &&
- toqb(dquot->dq_dqb.dqb_curspace + space) > dquot->dq_dqb.dqb_bhardlimit &&
+ dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bhardlimit &&
!ignore_hardlimit(dquot)) {
if (!prealloc)
*warntype = QUOTA_NL_BHARDWARN;
@@ -1070,7 +1142,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
}
if (dquot->dq_dqb.dqb_bsoftlimit &&
- toqb(dquot->dq_dqb.dqb_curspace + space) > dquot->dq_dqb.dqb_bsoftlimit &&
+ dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bsoftlimit &&
dquot->dq_dqb.dqb_btime && get_seconds() >= dquot->dq_dqb.dqb_btime &&
!ignore_hardlimit(dquot)) {
if (!prealloc)
@@ -1079,7 +1151,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
}
if (dquot->dq_dqb.dqb_bsoftlimit &&
- toqb(dquot->dq_dqb.dqb_curspace + space) > dquot->dq_dqb.dqb_bsoftlimit &&
+ dquot->dq_dqb.dqb_curspace + space > dquot->dq_dqb.dqb_bsoftlimit &&
dquot->dq_dqb.dqb_btime == 0) {
if (!prealloc) {
*warntype = QUOTA_NL_BSOFTWARN;
@@ -1096,10 +1168,11 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, char *war
return QUOTA_OK;
}
-static int info_idq_free(struct dquot *dquot, ulong inodes)
+static int info_idq_free(struct dquot *dquot, qsize_t inodes)
{
if (test_bit(DQ_FAKE_B, &dquot->dq_flags) ||
- dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit)
+ dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit ||
+ !sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type))
return QUOTA_NL_NOWARN;
if (dquot->dq_dqb.dqb_curinodes - inodes <= dquot->dq_dqb.dqb_isoftlimit)
@@ -1113,15 +1186,13 @@ static int info_idq_free(struct dquot *dquot, ulong inodes)
static int info_bdq_free(struct dquot *dquot, qsize_t space)
{
if (test_bit(DQ_FAKE_B, &dquot->dq_flags) ||
- toqb(dquot->dq_dqb.dqb_curspace) <= dquot->dq_dqb.dqb_bsoftlimit)
+ dquot->dq_dqb.dqb_curspace <= dquot->dq_dqb.dqb_bsoftlimit)
return QUOTA_NL_NOWARN;
- if (toqb(dquot->dq_dqb.dqb_curspace - space) <=
- dquot->dq_dqb.dqb_bsoftlimit)
+ if (dquot->dq_dqb.dqb_curspace - space <= dquot->dq_dqb.dqb_bsoftlimit)
return QUOTA_NL_BSOFTBELOW;
- if (toqb(dquot->dq_dqb.dqb_curspace) >= dquot->dq_dqb.dqb_bhardlimit &&
- toqb(dquot->dq_dqb.dqb_curspace - space) <
- dquot->dq_dqb.dqb_bhardlimit)
+ if (dquot->dq_dqb.dqb_curspace >= dquot->dq_dqb.dqb_bhardlimit &&
+ dquot->dq_dqb.dqb_curspace - space < dquot->dq_dqb.dqb_bhardlimit)
return QUOTA_NL_BHARDBELOW;
return QUOTA_NL_NOWARN;
}
@@ -1166,17 +1237,23 @@ out_err:
* Release all quotas referenced by inode
* Transaction must be started at an entry
*/
-int dquot_drop(struct inode *inode)
+int dquot_drop_locked(struct inode *inode)
{
int cnt;
- down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (inode->i_dquot[cnt] != NODQUOT) {
dqput(inode->i_dquot[cnt]);
inode->i_dquot[cnt] = NODQUOT;
}
}
+ return 0;
+}
+
+int dquot_drop(struct inode *inode)
+{
+ down_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
+ dquot_drop_locked(inode);
up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
return 0;
}
@@ -1264,7 +1341,7 @@ warn_put_all:
/*
* This operation can block, but only after everything is updated
*/
-int dquot_alloc_inode(const struct inode *inode, unsigned long number)
+int dquot_alloc_inode(const struct inode *inode, qsize_t number)
{
int cnt, ret = NO_QUOTA;
char warntype[MAXQUOTAS];
@@ -1349,7 +1426,7 @@ out_sub:
/*
* This operation can block, but only after everything is updated
*/
-int dquot_free_inode(const struct inode *inode, unsigned long number)
+int dquot_free_inode(const struct inode *inode, qsize_t number)
{
unsigned int cnt;
char warntype[MAXQUOTAS];
@@ -1495,7 +1572,7 @@ warn_put_all:
/* Wrapper for transferring ownership of an inode */
int vfs_dq_transfer(struct inode *inode, struct iattr *iattr)
{
- if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode)) {
+ if (sb_any_quota_active(inode->i_sb) && !IS_NOQUOTA(inode)) {
vfs_dq_init(inode);
if (inode->i_sb->dq_op->transfer(inode, iattr) == NO_QUOTA)
return 1;
@@ -1533,54 +1610,27 @@ struct dquot_operations dquot_operations = {
.acquire_dquot = dquot_acquire,
.release_dquot = dquot_release,
.mark_dirty = dquot_mark_dquot_dirty,
- .write_info = dquot_commit_info
+ .write_info = dquot_commit_info,
+ .alloc_dquot = dquot_alloc,
+ .destroy_dquot = dquot_destroy,
};
-static inline void set_enable_flags(struct quota_info *dqopt, int type)
-{
- switch (type) {
- case USRQUOTA:
- dqopt->flags |= DQUOT_USR_ENABLED;
- dqopt->flags &= ~DQUOT_USR_SUSPENDED;
- break;
- case GRPQUOTA:
- dqopt->flags |= DQUOT_GRP_ENABLED;
- dqopt->flags &= ~DQUOT_GRP_SUSPENDED;
- break;
- }
-}
-
-static inline void reset_enable_flags(struct quota_info *dqopt, int type,
- int remount)
-{
- switch (type) {
- case USRQUOTA:
- dqopt->flags &= ~DQUOT_USR_ENABLED;
- if (remount)
- dqopt->flags |= DQUOT_USR_SUSPENDED;
- else
- dqopt->flags &= ~DQUOT_USR_SUSPENDED;
- break;
- case GRPQUOTA:
- dqopt->flags &= ~DQUOT_GRP_ENABLED;
- if (remount)
- dqopt->flags |= DQUOT_GRP_SUSPENDED;
- else
- dqopt->flags &= ~DQUOT_GRP_SUSPENDED;
- break;
- }
-}
-
-
/*
* Turn quota off on a device. type == -1 ==> quotaoff for all types (umount)
*/
-int vfs_quota_off(struct super_block *sb, int type, int remount)
+int vfs_quota_disable(struct super_block *sb, int type, unsigned int flags)
{
int cnt, ret = 0;
struct quota_info *dqopt = sb_dqopt(sb);
struct inode *toputinode[MAXQUOTAS];
+ /* Cannot turn off usage accounting without turning off limits, or
+ * suspend quotas and simultaneously turn quotas off. */
+ if ((flags & DQUOT_USAGE_ENABLED && !(flags & DQUOT_LIMITS_ENABLED))
+ || (flags & DQUOT_SUSPENDED && flags & (DQUOT_LIMITS_ENABLED |
+ DQUOT_USAGE_ENABLED)))
+ return -EINVAL;
+
/* We need to serialize quota_off() for device */
mutex_lock(&dqopt->dqonoff_mutex);
@@ -1589,7 +1639,7 @@ int vfs_quota_off(struct super_block *sb, int type, int remount)
* sometimes we are called when fill_super() failed and calling
* sync_fs() in such cases does no good.
*/
- if (!sb_any_quota_enabled(sb) && !sb_any_quota_suspended(sb)) {
+ if (!sb_any_quota_loaded(sb)) {
mutex_unlock(&dqopt->dqonoff_mutex);
return 0;
}
@@ -1597,17 +1647,28 @@ int vfs_quota_off(struct super_block *sb, int type, int remount)
toputinode[cnt] = NULL;
if (type != -1 && cnt != type)
continue;
- /* If we keep inodes of quota files after remount and quotaoff
- * is called, drop kept inodes. */
- if (!remount && sb_has_quota_suspended(sb, cnt)) {
- iput(dqopt->files[cnt]);
- dqopt->files[cnt] = NULL;
- reset_enable_flags(dqopt, cnt, 0);
+ if (!sb_has_quota_loaded(sb, cnt))
continue;
+
+ if (flags & DQUOT_SUSPENDED) {
+ dqopt->flags |=
+ dquot_state_flag(DQUOT_SUSPENDED, cnt);
+ } else {
+ dqopt->flags &= ~dquot_state_flag(flags, cnt);
+ /* Turning off suspended quotas? */
+ if (!sb_has_quota_loaded(sb, cnt) &&
+ sb_has_quota_suspended(sb, cnt)) {
+ dqopt->flags &= ~dquot_state_flag(
+ DQUOT_SUSPENDED, cnt);
+ iput(dqopt->files[cnt]);
+ dqopt->files[cnt] = NULL;
+ continue;
+ }
}
- if (!sb_has_quota_enabled(sb, cnt))
+
+ /* We still have to keep quota loaded? */
+ if (sb_has_quota_loaded(sb, cnt) && !(flags & DQUOT_SUSPENDED))
continue;
- reset_enable_flags(dqopt, cnt, remount);
/* Note: these are blocking operations */
drop_dquot_ref(sb, cnt);
@@ -1623,7 +1684,7 @@ int vfs_quota_off(struct super_block *sb, int type, int remount)
put_quota_format(dqopt->info[cnt].dqi_format);
toputinode[cnt] = dqopt->files[cnt];
- if (!remount)
+ if (!sb_has_quota_loaded(sb, cnt))
dqopt->files[cnt] = NULL;
dqopt->info[cnt].dqi_flags = 0;
dqopt->info[cnt].dqi_igrace = 0;
@@ -1631,6 +1692,11 @@ int vfs_quota_off(struct super_block *sb, int type, int remount)
dqopt->ops[cnt] = NULL;
}
mutex_unlock(&dqopt->dqonoff_mutex);
+
+ /* Skip syncing and setting flags if quota files are hidden */
+ if (dqopt->flags & DQUOT_QUOTA_SYS_FILE)
+ goto put_inodes;
+
/* Sync the superblock so that buffers with quota data are written to
* disk (and so userspace sees correct data afterwards). */
if (sb->s_op->sync_fs)
@@ -1646,7 +1712,7 @@ int vfs_quota_off(struct super_block *sb, int type, int remount)
mutex_lock(&dqopt->dqonoff_mutex);
/* If quota was reenabled in the meantime, we have
* nothing to do */
- if (!sb_has_quota_enabled(sb, cnt)) {
+ if (!sb_has_quota_loaded(sb, cnt)) {
mutex_lock_nested(&toputinode[cnt]->i_mutex, I_MUTEX_QUOTA);
toputinode[cnt]->i_flags &= ~(S_IMMUTABLE |
S_NOATIME | S_NOQUOTA);
@@ -1655,26 +1721,43 @@ int vfs_quota_off(struct super_block *sb, int type, int remount)
mark_inode_dirty(toputinode[cnt]);
}
mutex_unlock(&dqopt->dqonoff_mutex);
+ }
+ if (sb->s_bdev)
+ invalidate_bdev(sb->s_bdev);
+put_inodes:
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+ if (toputinode[cnt]) {
/* On remount RO, we keep the inode pointer so that we
- * can reenable quota on the subsequent remount RW.
- * But we have better not keep inode pointer when there
- * is pending delete on the quota file... */
- if (!remount)
+ * can reenable quota on the subsequent remount RW. We
+ * have to check 'flags' variable and not use sb_has_
+ * function because another quotaon / quotaoff could
+ * change global state before we got here. We refuse
+ * to suspend quotas when there is pending delete on
+ * the quota file... */
+ if (!(flags & DQUOT_SUSPENDED))
iput(toputinode[cnt]);
else if (!toputinode[cnt]->i_nlink)
ret = -EBUSY;
}
- if (sb->s_bdev)
- invalidate_bdev(sb->s_bdev);
return ret;
}
+int vfs_quota_off(struct super_block *sb, int type, int remount)
+{
+ return vfs_quota_disable(sb, type, remount ? DQUOT_SUSPENDED :
+ (DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED));
+}
+
/*
* Turn quotas on on a device
*/
-/* Helper function when we already have the inode */
-static int vfs_quota_on_inode(struct inode *inode, int type, int format_id)
+/*
+ * Helper function to turn quotas on when we already have the inode of
+ * quota file and no quota information is loaded.
+ */
+static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
+ unsigned int flags)
{
struct quota_format_type *fmt = find_quota_format(format_id);
struct super_block *sb = inode->i_sb;
@@ -1696,27 +1779,37 @@ static int vfs_quota_on_inode(struct inode *inode, int type, int format_id)
error = -EINVAL;
goto out_fmt;
}
+ /* Usage always has to be set... */
+ if (!(flags & DQUOT_USAGE_ENABLED)) {
+ error = -EINVAL;
+ goto out_fmt;
+ }
- /* As we bypass the pagecache we must now flush the inode so that
- * we see all the changes from userspace... */
- write_inode_now(inode, 1);
- /* And now flush the block cache so that kernel sees the changes */
- invalidate_bdev(sb->s_bdev);
+ if (!(dqopt->flags & DQUOT_QUOTA_SYS_FILE)) {
+ /* As we bypass the pagecache we must now flush the inode so
+ * that we see all the changes from userspace... */
+ write_inode_now(inode, 1);
+ /* And now flush the block cache so that kernel sees the
+ * changes */
+ invalidate_bdev(sb->s_bdev);
+ }
mutex_lock(&inode->i_mutex);
mutex_lock(&dqopt->dqonoff_mutex);
- if (sb_has_quota_enabled(sb, type) ||
- sb_has_quota_suspended(sb, type)) {
+ if (sb_has_quota_loaded(sb, type)) {
error = -EBUSY;
goto out_lock;
}
- /* We don't want quota and atime on quota files (deadlocks possible)
- * Also nobody should write to the file - we use special IO operations
- * which ignore the immutable bit. */
- down_write(&dqopt->dqptr_sem);
- oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA);
- inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE;
- up_write(&dqopt->dqptr_sem);
- sb->dq_op->drop(inode);
+
+ if (!(dqopt->flags & DQUOT_QUOTA_SYS_FILE)) {
+ /* We don't want quota and atime on quota files (deadlocks
+ * possible) Also nobody should write to the file - we use
+ * special IO operations which ignore the immutable bit. */
+ down_write(&dqopt->dqptr_sem);
+ oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA);
+ inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE;
+ up_write(&dqopt->dqptr_sem);
+ sb->dq_op->drop(inode);
+ }
error = -EIO;
dqopt->files[type] = igrab(inode);
@@ -1737,7 +1830,7 @@ static int vfs_quota_on_inode(struct inode *inode, int type, int format_id)
}
mutex_unlock(&dqopt->dqio_mutex);
mutex_unlock(&inode->i_mutex);
- set_enable_flags(dqopt, type);
+ dqopt->flags |= dquot_state_flag(flags, type);
add_dquot_ref(sb, type);
mutex_unlock(&dqopt->dqonoff_mutex);
@@ -1770,20 +1863,23 @@ static int vfs_quota_on_remount(struct super_block *sb, int type)
struct quota_info *dqopt = sb_dqopt(sb);
struct inode *inode;
int ret;
+ unsigned int flags;
mutex_lock(&dqopt->dqonoff_mutex);
if (!sb_has_quota_suspended(sb, type)) {
mutex_unlock(&dqopt->dqonoff_mutex);
return 0;
}
- BUG_ON(sb_has_quota_enabled(sb, type));
-
inode = dqopt->files[type];
dqopt->files[type] = NULL;
- reset_enable_flags(dqopt, type, 0);
+ flags = dqopt->flags & dquot_state_flag(DQUOT_USAGE_ENABLED |
+ DQUOT_LIMITS_ENABLED, type);
+ dqopt->flags &= ~dquot_state_flag(DQUOT_STATE_FLAGS, type);
mutex_unlock(&dqopt->dqonoff_mutex);
- ret = vfs_quota_on_inode(inode, type, dqopt->info[type].dqi_fmt_id);
+ flags = dquot_generic_flag(flags, type);
+ ret = vfs_load_quota_inode(inode, type, dqopt->info[type].dqi_fmt_id,
+ flags);
iput(inode);
return ret;
@@ -1799,12 +1895,12 @@ int vfs_quota_on_path(struct super_block *sb, int type, int format_id,
if (path->mnt->mnt_sb != sb)
error = -EXDEV;
else
- error = vfs_quota_on_inode(path->dentry->d_inode, type,
- format_id);
+ error = vfs_load_quota_inode(path->dentry->d_inode, type,
+ format_id, DQUOT_USAGE_ENABLED |
+ DQUOT_LIMITS_ENABLED);
return error;
}
-/* Actual function called from quotactl() */
int vfs_quota_on(struct super_block *sb, int type, int format_id, char *name,
int remount)
{
@@ -1822,6 +1918,50 @@ int vfs_quota_on(struct super_block *sb, int type, int format_id, char *name,
return error;
}
+/*
+ * More powerful function for turning on quotas allowing setting
+ * of individual quota flags
+ */
+int vfs_quota_enable(struct inode *inode, int type, int format_id,
+ unsigned int flags)
+{
+ int ret = 0;
+ struct super_block *sb = inode->i_sb;
+ struct quota_info *dqopt = sb_dqopt(sb);
+
+ /* Just unsuspend quotas? */
+ if (flags & DQUOT_SUSPENDED)
+ return vfs_quota_on_remount(sb, type);
+ if (!flags)
+ return 0;
+ /* Just updating flags needed? */
+ if (sb_has_quota_loaded(sb, type)) {
+ mutex_lock(&dqopt->dqonoff_mutex);
+ /* Now do a reliable test... */
+ if (!sb_has_quota_loaded(sb, type)) {
+ mutex_unlock(&dqopt->dqonoff_mutex);
+ goto load_quota;
+ }
+ if (flags & DQUOT_USAGE_ENABLED &&
+ sb_has_quota_usage_enabled(sb, type)) {
+ ret = -EBUSY;
+ goto out_lock;
+ }
+ if (flags & DQUOT_LIMITS_ENABLED &&
+ sb_has_quota_limits_enabled(sb, type)) {
+ ret = -EBUSY;
+ goto out_lock;
+ }
+ sb_dqopt(sb)->flags |= dquot_state_flag(flags, type);
+out_lock:
+ mutex_unlock(&dqopt->dqonoff_mutex);
+ return ret;
+ }
+
+load_quota:
+ return vfs_load_quota_inode(inode, type, format_id, flags);
+}
+
/*
* This function is used when filesystem needs to initialize quotas
* during mount time.
@@ -1843,7 +1983,8 @@ int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
error = security_quota_on(dentry);
if (!error)
- error = vfs_quota_on_inode(dentry->d_inode, type, format_id);
+ error = vfs_load_quota_inode(dentry->d_inode, type, format_id,
+ DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
out:
dput(dentry);
@@ -1866,14 +2007,24 @@ int vfs_dq_quota_on_remount(struct super_block *sb)
return ret;
}
+static inline qsize_t qbtos(qsize_t blocks)
+{
+ return blocks << QIF_DQBLKSIZE_BITS;
+}
+
+static inline qsize_t stoqb(qsize_t space)
+{
+ return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
+}
+
/* Generic routine for getting common part of quota structure */
static void do_get_dqblk(struct dquot *dquot, struct if_dqblk *di)
{
struct mem_dqblk *dm = &dquot->dq_dqb;
spin_lock(&dq_data_lock);
- di->dqb_bhardlimit = dm->dqb_bhardlimit;
- di->dqb_bsoftlimit = dm->dqb_bsoftlimit;
+ di->dqb_bhardlimit = stoqb(dm->dqb_bhardlimit);
+ di->dqb_bsoftlimit = stoqb(dm->dqb_bsoftlimit);
di->dqb_curspace = dm->dqb_curspace;
di->dqb_ihardlimit = dm->dqb_ihardlimit;
di->dqb_isoftlimit = dm->dqb_isoftlimit;
@@ -1918,28 +2069,36 @@ static int do_set_dqblk(struct dquot *dquot, struct if_dqblk *di)
if (di->dqb_valid & QIF_SPACE) {
dm->dqb_curspace = di->dqb_curspace;
check_blim = 1;
+ __set_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_BLIMITS) {
- dm->dqb_bsoftlimit = di->dqb_bsoftlimit;
- dm->dqb_bhardlimit = di->dqb_bhardlimit;
+ dm->dqb_bsoftlimit = qbtos(di->dqb_bsoftlimit);
+ dm->dqb_bhardlimit = qbtos(di->dqb_bhardlimit);
check_blim = 1;
+ __set_bit(DQ_LASTSET_B + QIF_BLIMITS_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_INODES) {
dm->dqb_curinodes = di->dqb_curinodes;
check_ilim = 1;
+ __set_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags);
}
if (di->dqb_valid & QIF_ILIMITS) {
dm->dqb_isoftlimit = di->dqb_isoftlimit;
dm->dqb_ihardlimit = di->dqb_ihardlimit;
check_ilim = 1;
+ __set_bit(DQ_LASTSET_B + QIF_ILIMITS_B, &dquot->dq_flags);
}
- if (di->dqb_valid & QIF_BTIME)
+ if (di->dqb_valid & QIF_BTIME) {
dm->dqb_btime = di->dqb_btime;
- if (di->dqb_valid & QIF_ITIME)
+ __set_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags);
+ }
+ if (di->dqb_valid & QIF_ITIME) {
dm->dqb_itime = di->dqb_itime;
+ __set_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags);
+ }
if (check_blim) {
- if (!dm->dqb_bsoftlimit || toqb(dm->dqb_curspace) < dm->dqb_bsoftlimit) {
+ if (!dm->dqb_bsoftlimit || dm->dqb_curspace < dm->dqb_bsoftlimit) {
dm->dqb_btime = 0;
clear_bit(DQ_BLKS_B, &dquot->dq_flags);
}
@@ -1970,12 +2129,14 @@ int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *d
int rc;
mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
- if (!(dquot = dqget(sb, id, type))) {
- mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
- return -ESRCH;
+ dquot = dqget(sb, id, type);
+ if (!dquot) {
+ rc = -ESRCH;
+ goto out;
}
rc = do_set_dqblk(dquot, di);
dqput(dquot);
+out:
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return rc;
}
@@ -1986,7 +2147,7 @@ int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
struct mem_dqinfo *mi;
mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
- if (!sb_has_quota_enabled(sb, type)) {
+ if (!sb_has_quota_active(sb, type)) {
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return -ESRCH;
}
@@ -2005,11 +2166,12 @@ int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
{
struct mem_dqinfo *mi;
+ int err = 0;
mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
- if (!sb_has_quota_enabled(sb, type)) {
- mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
- return -ESRCH;
+ if (!sb_has_quota_active(sb, type)) {
+ err = -ESRCH;
+ goto out;
}
mi = sb_dqopt(sb)->info + type;
spin_lock(&dq_data_lock);
@@ -2023,8 +2185,9 @@ int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
mark_info_dirty(sb, type);
/* Force write to disk */
sb->dq_op->write_info(sb, type);
+out:
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
- return 0;
+ return err;
}
struct quotactl_ops vfs_quotactl_ops = {
@@ -2186,10 +2349,13 @@ EXPORT_SYMBOL(register_quota_format);
EXPORT_SYMBOL(unregister_quota_format);
EXPORT_SYMBOL(dqstats);
EXPORT_SYMBOL(dq_data_lock);
+EXPORT_SYMBOL(vfs_quota_enable);
EXPORT_SYMBOL(vfs_quota_on);
EXPORT_SYMBOL(vfs_quota_on_path);
EXPORT_SYMBOL(vfs_quota_on_mount);
+EXPORT_SYMBOL(vfs_quota_disable);
EXPORT_SYMBOL(vfs_quota_off);
+EXPORT_SYMBOL(dquot_scan_active);
EXPORT_SYMBOL(vfs_quota_sync);
EXPORT_SYMBOL(vfs_get_dqinfo);
EXPORT_SYMBOL(vfs_set_dqinfo);
@@ -2202,7 +2368,11 @@ EXPORT_SYMBOL(dquot_release);
EXPORT_SYMBOL(dquot_mark_dquot_dirty);
EXPORT_SYMBOL(dquot_initialize);
EXPORT_SYMBOL(dquot_drop);
+EXPORT_SYMBOL(dquot_drop_locked);
EXPORT_SYMBOL(vfs_dq_drop);
+EXPORT_SYMBOL(dqget);
+EXPORT_SYMBOL(dqput);
+EXPORT_SYMBOL(dquot_is_cached);
EXPORT_SYMBOL(dquot_alloc_space);
EXPORT_SYMBOL(dquot_alloc_inode);
EXPORT_SYMBOL(dquot_free_space);
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index f6c94f232ec1..c22d01467bd1 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -713,7 +713,9 @@ static struct dquot_operations ext3_quota_operations = {
.acquire_dquot = ext3_acquire_dquot,
.release_dquot = ext3_release_dquot,
.mark_dirty = ext3_mark_dquot_dirty,
- .write_info = ext3_write_info
+ .write_info = ext3_write_info,
+ .alloc_dquot = dquot_alloc,
+ .destroy_dquot = dquot_destroy,
};
static struct quotactl_ops ext3_qctl_operations = {
@@ -1035,8 +1037,7 @@ static int parse_options (char *options, struct super_block *sb,
case Opt_grpjquota:
qtype = GRPQUOTA;
set_qf_name:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
+ if (sb_any_quota_loaded(sb) &&
!sbi->s_qf_names[qtype]) {
printk(KERN_ERR
"EXT3-fs: Cannot change journaled "
@@ -1075,8 +1076,7 @@ set_qf_name:
case Opt_offgrpjquota:
qtype = GRPQUOTA;
clear_qf_name:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
+ if (sb_any_quota_loaded(sb) &&
sbi->s_qf_names[qtype]) {
printk(KERN_ERR "EXT3-fs: Cannot change "
"journaled quota options when "
@@ -1095,8 +1095,7 @@ clear_qf_name:
case Opt_jqfmt_vfsv0:
qfmt = QFMT_VFS_V0;
set_qf_format:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
+ if (sb_any_quota_loaded(sb) &&
sbi->s_jquota_fmt != qfmt) {
printk(KERN_ERR "EXT3-fs: Cannot change "
"journaled quota options when "
@@ -1115,8 +1114,7 @@ set_qf_format:
set_opt(sbi->s_mount_opt, GRPQUOTA);
break;
case Opt_noquota:
- if (sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) {
+ if (sb_any_quota_loaded(sb)) {
printk(KERN_ERR "EXT3-fs: Cannot change quota "
"options when quota turned on.\n");
return 0;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 04158ad74dbb..9494bb249390 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -803,7 +803,9 @@ static struct dquot_operations ext4_quota_operations = {
.acquire_dquot = ext4_acquire_dquot,
.release_dquot = ext4_release_dquot,
.mark_dirty = ext4_mark_dquot_dirty,
- .write_info = ext4_write_info
+ .write_info = ext4_write_info,
+ .alloc_dquot = dquot_alloc,
+ .destroy_dquot = dquot_destroy,
};
static struct quotactl_ops ext4_qctl_operations = {
@@ -1142,8 +1144,7 @@ static int parse_options(char *options, struct super_block *sb,
case Opt_grpjquota:
qtype = GRPQUOTA;
set_qf_name:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
+ if (sb_any_quota_loaded(sb) &&
!sbi->s_qf_names[qtype]) {
printk(KERN_ERR
"EXT4-fs: Cannot change journaled "
@@ -1182,8 +1183,7 @@ set_qf_name:
case Opt_offgrpjquota:
qtype = GRPQUOTA;
clear_qf_name:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
+ if (sb_any_quota_loaded(sb) &&
sbi->s_qf_names[qtype]) {
printk(KERN_ERR "EXT4-fs: Cannot change "
"journaled quota options when "
@@ -1202,8 +1202,7 @@ clear_qf_name:
case Opt_jqfmt_vfsv0:
qfmt = QFMT_VFS_V0;
set_qf_format:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
+ if (sb_any_quota_loaded(sb) &&
sbi->s_jquota_fmt != qfmt) {
printk(KERN_ERR "EXT4-fs: Cannot change "
"journaled quota options when "
@@ -1222,7 +1221,7 @@ set_qf_format:
set_opt(sbi->s_mount_opt, GRPQUOTA);
break;
case Opt_noquota:
- if (sb_any_quota_enabled(sb)) {
+ if (sb_any_quota_loaded(sb)) {
printk(KERN_ERR "EXT4-fs: Cannot change quota "
"options when quota turned on.\n");
return 0;
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index ebc667bc54a8..c8a1bace685a 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -509,6 +509,10 @@ void jbd2_journal_commit_transaction(journal_t *journal)
if (is_journal_aborted(journal)) {
clear_buffer_jbddirty(jh2bh(jh));
JBUFFER_TRACE(jh, "journal is aborting: refile");
+ jbd2_buffer_abort_trigger(jh,
+ jh->b_frozen_data ?
+ jh->b_frozen_triggers :
+ jh->b_triggers);
jbd2_journal_refile_buffer(journal, jh);
/* If that was the last one, we need to clean up
* any descriptor buffers which may have been
@@ -844,6 +848,9 @@ restart_loop:
* data.
*
* Otherwise, we can just throw away the frozen data now.
+ *
+ * We also know that the frozen data has already fired
+ * its triggers if they exist, so we can clear that too.
*/
if (jh->b_committed_data) {
jbd2_free(jh->b_committed_data, bh->b_size);
@@ -851,10 +858,12 @@ restart_loop:
if (jh->b_frozen_data) {
jh->b_committed_data = jh->b_frozen_data;
jh->b_frozen_data = NULL;
+ jh->b_frozen_triggers = NULL;
}
} else if (jh->b_frozen_data) {
jbd2_free(jh->b_frozen_data, bh->b_size);
jh->b_frozen_data = NULL;
+ jh->b_frozen_triggers = NULL;
}
spin_lock(&journal->j_list_lock);
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index e70d657a19f8..f6bff9d6f8df 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -50,6 +50,7 @@ EXPORT_SYMBOL(jbd2_journal_unlock_updates);
EXPORT_SYMBOL(jbd2_journal_get_write_access);
EXPORT_SYMBOL(jbd2_journal_get_create_access);
EXPORT_SYMBOL(jbd2_journal_get_undo_access);
+EXPORT_SYMBOL(jbd2_journal_set_triggers);
EXPORT_SYMBOL(jbd2_journal_dirty_metadata);
EXPORT_SYMBOL(jbd2_journal_release_buffer);
EXPORT_SYMBOL(jbd2_journal_forget);
@@ -290,6 +291,7 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
struct page *new_page;
unsigned int new_offset;
struct buffer_head *bh_in = jh2bh(jh_in);
+ struct jbd2_buffer_trigger_type *triggers;
/*
* The buffer really shouldn't be locked: only the current committing
@@ -314,12 +316,22 @@ repeat:
done_copy_out = 1;
new_page = virt_to_page(jh_in->b_frozen_data);
new_offset = offset_in_page(jh_in->b_frozen_data);
+ triggers = jh_in->b_frozen_triggers;
} else {
new_page = jh2bh(jh_in)->b_page;
new_offset = offset_in_page(jh2bh(jh_in)->b_data);
+ triggers = jh_in->b_triggers;
}
mapped_data = kmap_atomic(new_page, KM_USER0);
+ /*
+ * Fire any commit trigger. Do this before checking for escaping,
+ * as the trigger may modify the magic offset. If a copy-out
+ * happens afterwards, it will have the correct data in the buffer.
+ */
+ jbd2_buffer_commit_trigger(jh_in, mapped_data + new_offset,
+ triggers);
+
/*
* Check for escaping
*/
@@ -352,6 +364,13 @@ repeat:
new_page = virt_to_page(tmp);
new_offset = offset_in_page(tmp);
done_copy_out = 1;
+
+ /*
+ * This isn't strictly necessary, as we're using frozen
+ * data for the escaping, but it keeps consistency with
+ * b_frozen_data usage.
+ */
+ jh_in->b_frozen_triggers = jh_in->b_triggers;
}
/*
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 39b7805a599a..4f925a4f3d05 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -741,6 +741,12 @@ done:
source = kmap_atomic(page, KM_USER0);
memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
kunmap_atomic(source, KM_USER0);
+
+ /*
+ * Now that the frozen data is saved off, we need to store
+ * any matching triggers.
+ */
+ jh->b_frozen_triggers = jh->b_triggers;
}
jbd_unlock_bh_state(bh);
@@ -943,6 +949,47 @@ out:
return err;
}
+/**
+ * void jbd2_journal_set_triggers() - Add triggers for commit writeout
+ * @bh: buffer to trigger on
+ * @type: struct jbd2_buffer_trigger_type containing the trigger(s).
+ *
+ * Set any triggers on this journal_head. This is always safe, because
+ * triggers for a committing buffer will be saved off, and triggers for
+ * a running transaction will match the buffer in that transaction.
+ *
+ * Call with NULL to clear the triggers.
+ */
+void jbd2_journal_set_triggers(struct buffer_head *bh,
+ struct jbd2_buffer_trigger_type *type)
+{
+ struct journal_head *jh = bh2jh(bh);
+
+ jh->b_triggers = type;
+}
+
+void jbd2_buffer_commit_trigger(struct journal_head *jh, void *mapped_data,
+ struct jbd2_buffer_trigger_type *triggers)
+{
+ struct buffer_head *bh = jh2bh(jh);
+
+ if (!triggers || !triggers->t_commit)
+ return;
+
+ triggers->t_commit(triggers, bh, mapped_data, bh->b_size);
+}
+
+void jbd2_buffer_abort_trigger(struct journal_head *jh,
+ struct jbd2_buffer_trigger_type *triggers)
+{
+ if (!triggers || !triggers->t_abort)
+ return;
+
+ triggers->t_abort(triggers, jh2bh(jh));
+}
+
+
+
/**
* int jbd2_journal_dirty_metadata() - mark a buffer as containing dirty metadata
* @handle: transaction to add buffer to.
diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile
index 589dcdfdfe3c..01596079dd63 100644
--- a/fs/ocfs2/Makefile
+++ b/fs/ocfs2/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_OCFS2_FS_USERSPACE_CLUSTER) += ocfs2_stack_user.o
ocfs2-objs := \
alloc.o \
aops.o \
+ blockcheck.o \
buffer_head_io.o \
dcache.o \
dir.o \
@@ -35,8 +36,14 @@ ocfs2-objs := \
sysfile.o \
uptodate.o \
ver.o \
+ quota_local.o \
+ quota_global.o \
xattr.o
+ifeq ($(CONFIG_OCFS2_FS_POSIX_ACL),y)
+ocfs2-objs += acl.o
+endif
+
ocfs2_stackglue-objs := stackglue.o
ocfs2_stack_o2cb-objs := stack_o2cb.o
ocfs2_stack_user-objs := stack_user.o
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
new file mode 100644
index 000000000000..12dfb44c22e5
--- /dev/null
+++ b/fs/ocfs2/acl.c
@@ -0,0 +1,479 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * acl.c
+ *
+ * Copyright (C) 2004, 2008 Oracle. All rights reserved.
+ *
+ * CREDITS:
+ * Lots of code in this file is copy from linux/fs/ext3/acl.c.
+ * Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+
+#define MLOG_MASK_PREFIX ML_INODE
+#include <cluster/masklog.h>
+
+#include "ocfs2.h"
+#include "alloc.h"
+#include "dlmglue.h"
+#include "file.h"
+#include "ocfs2_fs.h"
+
+#include "xattr.h"
+#include "acl.h"
+
+/*
+ * Convert from xattr value to acl struct.
+ */
+static struct posix_acl *ocfs2_acl_from_xattr(const void *value, size_t size)
+{
+ int n, count;
+ struct posix_acl *acl;
+
+ if (!value)
+ return NULL;
+ if (size < sizeof(struct posix_acl_entry))
+ return ERR_PTR(-EINVAL);
+
+ count = size / sizeof(struct posix_acl_entry);
+ if (count < 0)
+ return ERR_PTR(-EINVAL);
+ if (count == 0)
+ return NULL;
+
+ acl = posix_acl_alloc(count, GFP_NOFS);
+ if (!acl)
+ return ERR_PTR(-ENOMEM);
+ for (n = 0; n < count; n++) {
+ struct ocfs2_acl_entry *entry =
+ (struct ocfs2_acl_entry *)value;
+
+ acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
+ acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
+ acl->a_entries[n].e_id = le32_to_cpu(entry->e_id);
+ value += sizeof(struct posix_acl_entry);
+
+ }
+ return acl;
+}
+
+/*
+ * Convert acl struct to xattr value.
+ */
+static void *ocfs2_acl_to_xattr(const struct posix_acl *acl, size_t *size)
+{
+ struct ocfs2_acl_entry *entry = NULL;
+ char *ocfs2_acl;
+ size_t n;
+
+ *size = acl->a_count * sizeof(struct posix_acl_entry);
+
+ ocfs2_acl = kmalloc(*size, GFP_NOFS);
+ if (!ocfs2_acl)
+ return ERR_PTR(-ENOMEM);
+
+ entry = (struct ocfs2_acl_entry *)ocfs2_acl;
+ for (n = 0; n < acl->a_count; n++, entry++) {
+ entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
+ entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
+ entry->e_id = cpu_to_le32(acl->a_entries[n].e_id);
+ }
+ return ocfs2_acl;
+}
+
+static struct posix_acl *ocfs2_get_acl_nolock(struct inode *inode,
+ int type,
+ struct buffer_head *di_bh)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ int name_index;
+ char *value = NULL;
+ struct posix_acl *acl;
+ int retval;
+
+ if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+ return NULL;
+
+ switch (type) {
+ case ACL_TYPE_ACCESS:
+ name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
+ break;
+ case ACL_TYPE_DEFAULT:
+ name_index = OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT;
+ break;
+ default:
+ return ERR_PTR(-EINVAL);
+ }
+
+ retval = ocfs2_xattr_get_nolock(inode, di_bh, name_index, "", NULL, 0);
+ if (retval > 0) {
+ value = kmalloc(retval, GFP_NOFS);
+ if (!value)
+ return ERR_PTR(-ENOMEM);
+ retval = ocfs2_xattr_get_nolock(inode, di_bh, name_index,
+ "", value, retval);
+ }
+
+ if (retval > 0)
+ acl = ocfs2_acl_from_xattr(value, retval);
+ else if (retval == -ENODATA || retval == 0)
+ acl = NULL;
+ else
+ acl = ERR_PTR(retval);
+
+ kfree(value);
+
+ return acl;
+}
+
+
+/*
+ * Get posix acl.
+ */
+static struct posix_acl *ocfs2_get_acl(struct inode *inode, int type)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct buffer_head *di_bh = NULL;
+ struct posix_acl *acl;
+ int ret;
+
+ if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+ return NULL;
+
+ ret = ocfs2_inode_lock(inode, &di_bh, 0);
+ if (ret < 0) {
+ mlog_errno(ret);
+ acl = ERR_PTR(ret);
+ return acl;
+ }
+
+ acl = ocfs2_get_acl_nolock(inode, type, di_bh);
+
+ ocfs2_inode_unlock(inode, 0);
+
+ brelse(di_bh);
+
+ return acl;
+}
+
+/*
+ * Set the access or default ACL of an inode.
+ */
+static int ocfs2_set_acl(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *di_bh,
+ int type,
+ struct posix_acl *acl,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac)
+{
+ int name_index;
+ void *value = NULL;
+ size_t size = 0;
+ int ret;
+
+ if (S_ISLNK(inode->i_mode))
+ return -EOPNOTSUPP;
+
+ switch (type) {
+ case ACL_TYPE_ACCESS:
+ name_index = OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS;
+ if (acl) {
+ mode_t mode = inode->i_mode;
+ ret = posix_acl_equiv_mode(acl, &mode);
+ if (ret < 0)
+ return ret;
+ else {
+ inode->i_mode = mode;
+ if (ret == 0)
+ acl = NULL;
+ }
+ }
+ break;
+ case ACL_TYPE_DEFAULT:
+ name_index = OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT;
+ if (!S_ISDIR(inode->i_mode))
+ return acl ? -EACCES : 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (acl) {
+ value = ocfs2_acl_to_xattr(acl, &size);
+ if (IS_ERR(value))
+ return (int)PTR_ERR(value);
+ }
+
+ if (handle)
+ ret = ocfs2_xattr_set_handle(handle, inode, di_bh, name_index,
+ "", value, size, 0,
+ meta_ac, data_ac);
+ else
+ ret = ocfs2_xattr_set(inode, name_index, "", value, size, 0);
+
+ kfree(value);
+
+ return ret;
+}
+
+int ocfs2_check_acl(struct inode *inode, int mask)
+{
+ struct posix_acl *acl = ocfs2_get_acl(inode, ACL_TYPE_ACCESS);
+
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ if (acl) {
+ int ret = posix_acl_permission(inode, acl, mask);
+ posix_acl_release(acl);
+ return ret;
+ }
+
+ return -EAGAIN;
+}
+
+int ocfs2_acl_chmod(struct inode *inode)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct posix_acl *acl, *clone;
+ int ret;
+
+ if (S_ISLNK(inode->i_mode))
+ return -EOPNOTSUPP;
+
+ if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+ return 0;
+
+ acl = ocfs2_get_acl(inode, ACL_TYPE_ACCESS);
+ if (IS_ERR(acl) || !acl)
+ return PTR_ERR(acl);
+ clone = posix_acl_clone(acl, GFP_KERNEL);
+ posix_acl_release(acl);
+ if (!clone)
+ return -ENOMEM;
+ ret = posix_acl_chmod_masq(clone, inode->i_mode);
+ if (!ret)
+ ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
+ clone, NULL, NULL);
+ posix_acl_release(clone);
+ return ret;
+}
+
+/*
+ * Initialize the ACLs of a new inode. If parent directory has default ACL,
+ * then clone to new inode. Called from ocfs2_mknod.
+ */
+int ocfs2_init_acl(handle_t *handle,
+ struct inode *inode,
+ struct inode *dir,
+ struct buffer_head *di_bh,
+ struct buffer_head *dir_bh,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct posix_acl *acl = NULL;
+ int ret = 0;
+
+ if (!S_ISLNK(inode->i_mode)) {
+ if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
+ acl = ocfs2_get_acl_nolock(dir, ACL_TYPE_DEFAULT,
+ dir_bh);
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ }
+ if (!acl)
+ inode->i_mode &= ~current->fs->umask;
+ }
+ if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) {
+ struct posix_acl *clone;
+ mode_t mode;
+
+ if (S_ISDIR(inode->i_mode)) {
+ ret = ocfs2_set_acl(handle, inode, di_bh,
+ ACL_TYPE_DEFAULT, acl,
+ meta_ac, data_ac);
+ if (ret)
+ goto cleanup;
+ }
+ clone = posix_acl_clone(acl, GFP_NOFS);
+ ret = -ENOMEM;
+ if (!clone)
+ goto cleanup;
+
+ mode = inode->i_mode;
+ ret = posix_acl_create_masq(clone, &mode);
+ if (ret >= 0) {
+ inode->i_mode = mode;
+ if (ret > 0) {
+ ret = ocfs2_set_acl(handle, inode,
+ di_bh, ACL_TYPE_ACCESS,
+ clone, meta_ac, data_ac);
+ }
+ }
+ posix_acl_release(clone);
+ }
+cleanup:
+ posix_acl_release(acl);
+ return ret;
+}
+
+static size_t ocfs2_xattr_list_acl_access(struct inode *inode,
+ char *list,
+ size_t list_len,
+ const char *name,
+ size_t name_len)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
+
+ if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+ return 0;
+
+ if (list && size <= list_len)
+ memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
+ return size;
+}
+
+static size_t ocfs2_xattr_list_acl_default(struct inode *inode,
+ char *list,
+ size_t list_len,
+ const char *name,
+ size_t name_len)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
+
+ if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+ return 0;
+
+ if (list && size <= list_len)
+ memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
+ return size;
+}
+
+static int ocfs2_xattr_get_acl(struct inode *inode,
+ int type,
+ void *buffer,
+ size_t size)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct posix_acl *acl;
+ int ret;
+
+ if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+ return -EOPNOTSUPP;
+
+ acl = ocfs2_get_acl(inode, type);
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ if (acl == NULL)
+ return -ENODATA;
+ ret = posix_acl_to_xattr(acl, buffer, size);
+ posix_acl_release(acl);
+
+ return ret;
+}
+
+static int ocfs2_xattr_get_acl_access(struct inode *inode,
+ const char *name,
+ void *buffer,
+ size_t size)
+{
+ if (strcmp(name, "") != 0)
+ return -EINVAL;
+ return ocfs2_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
+}
+
+static int ocfs2_xattr_get_acl_default(struct inode *inode,
+ const char *name,
+ void *buffer,
+ size_t size)
+{
+ if (strcmp(name, "") != 0)
+ return -EINVAL;
+ return ocfs2_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
+}
+
+static int ocfs2_xattr_set_acl(struct inode *inode,
+ int type,
+ const void *value,
+ size_t size)
+{
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct posix_acl *acl;
+ int ret = 0;
+
+ if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
+ return -EOPNOTSUPP;
+
+ if (!is_owner_or_cap(inode))
+ return -EPERM;
+
+ if (value) {
+ acl = posix_acl_from_xattr(value, size);
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ else if (acl) {
+ ret = posix_acl_valid(acl);
+ if (ret)
+ goto cleanup;
+ }
+ } else
+ acl = NULL;
+
+ ret = ocfs2_set_acl(NULL, inode, NULL, type, acl, NULL, NULL);
+
+cleanup:
+ posix_acl_release(acl);
+ return ret;
+}
+
+static int ocfs2_xattr_set_acl_access(struct inode *inode,
+ const char *name,
+ const void *value,
+ size_t size,
+ int flags)
+{
+ if (strcmp(name, "") != 0)
+ return -EINVAL;
+ return ocfs2_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
+}
+
+static int ocfs2_xattr_set_acl_default(struct inode *inode,
+ const char *name,
+ const void *value,
+ size_t size,
+ int flags)
+{
+ if (strcmp(name, "") != 0)
+ return -EINVAL;
+ return ocfs2_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
+}
+
+struct xattr_handler ocfs2_xattr_acl_access_handler = {
+ .prefix = POSIX_ACL_XATTR_ACCESS,
+ .list = ocfs2_xattr_list_acl_access,
+ .get = ocfs2_xattr_get_acl_access,
+ .set = ocfs2_xattr_set_acl_access,
+};
+
+struct xattr_handler ocfs2_xattr_acl_default_handler = {
+ .prefix = POSIX_ACL_XATTR_DEFAULT,
+ .list = ocfs2_xattr_list_acl_default,
+ .get = ocfs2_xattr_get_acl_default,
+ .set = ocfs2_xattr_set_acl_default,
+};
diff --git a/fs/ocfs2/acl.h b/fs/ocfs2/acl.h
new file mode 100644
index 000000000000..8f6389ed4da5
--- /dev/null
+++ b/fs/ocfs2/acl.h
@@ -0,0 +1,58 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * acl.h
+ *
+ * Copyright (C) 2004, 2008 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef OCFS2_ACL_H
+#define OCFS2_ACL_H
+
+#include <linux/posix_acl_xattr.h>
+
+struct ocfs2_acl_entry {
+ __le16 e_tag;
+ __le16 e_perm;
+ __le32 e_id;
+};
+
+#ifdef CONFIG_OCFS2_FS_POSIX_ACL
+
+extern int ocfs2_check_acl(struct inode *, int);
+extern int ocfs2_acl_chmod(struct inode *);
+extern int ocfs2_init_acl(handle_t *, struct inode *, struct inode *,
+ struct buffer_head *, struct buffer_head *,
+ struct ocfs2_alloc_context *,
+ struct ocfs2_alloc_context *);
+
+#else /* CONFIG_OCFS2_FS_POSIX_ACL*/
+
+#define ocfs2_check_acl NULL
+static inline int ocfs2_acl_chmod(struct inode *inode)
+{
+ return 0;
+}
+static inline int ocfs2_init_acl(handle_t *handle,
+ struct inode *inode,
+ struct inode *dir,
+ struct buffer_head *di_bh,
+ struct buffer_head *dir_bh,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac)
+{
+ return 0;
+}
+
+#endif /* CONFIG_OCFS2_FS_POSIX_ACL*/
+
+#endif /* OCFS2_ACL_H */
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 0cc2deb9394c..54ff4c77aaa3 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/swap.h>
+#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_DISK_ALLOC
#include <cluster/masklog.h>
@@ -36,6 +37,7 @@
#include "alloc.h"
#include "aops.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "extent_map.h"
#include "inode.h"
@@ -46,6 +48,7 @@
#include "file.h"
#include "super.h"
#include "uptodate.h"
+#include "xattr.h"
#include "buffer_head_io.h"
@@ -187,20 +190,12 @@ static int ocfs2_dinode_insert_check(struct inode *inode,
static int ocfs2_dinode_sanity_check(struct inode *inode,
struct ocfs2_extent_tree *et)
{
- int ret = 0;
- struct ocfs2_dinode *di;
+ struct ocfs2_dinode *di = et->et_object;
BUG_ON(et->et_ops != &ocfs2_dinode_et_ops);
+ BUG_ON(!OCFS2_IS_VALID_DINODE(di));
- di = et->et_object;
- if (!OCFS2_IS_VALID_DINODE(di)) {
- ret = -EIO;
- ocfs2_error(inode->i_sb,
- "Inode %llu has invalid path root",
- (unsigned long long)OCFS2_I(inode)->ip_blkno);
- }
-
- return ret;
+ return 0;
}
static void ocfs2_dinode_fill_root_el(struct ocfs2_extent_tree *et)
@@ -213,36 +208,33 @@ static void ocfs2_dinode_fill_root_el(struct ocfs2_extent_tree *et)
static void ocfs2_xattr_value_fill_root_el(struct ocfs2_extent_tree *et)
{
- struct ocfs2_xattr_value_root *xv = et->et_object;
+ struct ocfs2_xattr_value_buf *vb = et->et_object;
- et->et_root_el = &xv->xr_list;
+ et->et_root_el = &vb->vb_xv->xr_list;
}
static void ocfs2_xattr_value_set_last_eb_blk(struct ocfs2_extent_tree *et,
u64 blkno)
{
- struct ocfs2_xattr_value_root *xv =
- (struct ocfs2_xattr_value_root *)et->et_object;
+ struct ocfs2_xattr_value_buf *vb = et->et_object;
- xv->xr_last_eb_blk = cpu_to_le64(blkno);
+ vb->vb_xv->xr_last_eb_blk = cpu_to_le64(blkno);
}
static u64 ocfs2_xattr_value_get_last_eb_blk(struct ocfs2_extent_tree *et)
{
- struct ocfs2_xattr_value_root *xv =
- (struct ocfs2_xattr_value_root *) et->et_object;
+ struct ocfs2_xattr_value_buf *vb = et->et_object;
- return le64_to_cpu(xv->xr_last_eb_blk);
+ return le64_to_cpu(vb->vb_xv->xr_last_eb_blk);
}
static void ocfs2_xattr_value_update_clusters(struct inode *inode,
struct ocfs2_extent_tree *et,
u32 clusters)
{
- struct ocfs2_xattr_value_root *xv =
- (struct ocfs2_xattr_value_root *)et->et_object;
+ struct ocfs2_xattr_value_buf *vb = et->et_object;
- le32_add_cpu(&xv->xr_clusters, clusters);
+ le32_add_cpu(&vb->vb_xv->xr_clusters, clusters);
}
static struct ocfs2_extent_tree_operations ocfs2_xattr_value_et_ops = {
@@ -304,11 +296,13 @@ static struct ocfs2_extent_tree_operations ocfs2_xattr_tree_et_ops = {
static void __ocfs2_init_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh,
+ ocfs2_journal_access_func access,
void *obj,
struct ocfs2_extent_tree_operations *ops)
{
et->et_ops = ops;
et->et_root_bh = bh;
+ et->et_root_journal_access = access;
if (!obj)
obj = (void *)bh->b_data;
et->et_object = obj;
@@ -324,23 +318,23 @@ void ocfs2_init_dinode_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh)
{
- __ocfs2_init_extent_tree(et, inode, bh, NULL, &ocfs2_dinode_et_ops);
+ __ocfs2_init_extent_tree(et, inode, bh, ocfs2_journal_access_di,
+ NULL, &ocfs2_dinode_et_ops);
}
void ocfs2_init_xattr_tree_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh)
{
- __ocfs2_init_extent_tree(et, inode, bh, NULL,
- &ocfs2_xattr_tree_et_ops);
+ __ocfs2_init_extent_tree(et, inode, bh, ocfs2_journal_access_xb,
+ NULL, &ocfs2_xattr_tree_et_ops);
}
void ocfs2_init_xattr_value_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
- struct buffer_head *bh,
- struct ocfs2_xattr_value_root *xv)
+ struct ocfs2_xattr_value_buf *vb)
{
- __ocfs2_init_extent_tree(et, inode, bh, xv,
+ __ocfs2_init_extent_tree(et, inode, vb->vb_bh, vb->vb_access, vb,
&ocfs2_xattr_value_et_ops);
}
@@ -362,6 +356,15 @@ static inline void ocfs2_et_update_clusters(struct inode *inode,
et->et_ops->eo_update_clusters(inode, et, clusters);
}
+static inline int ocfs2_et_root_journal_access(handle_t *handle,
+ struct inode *inode,
+ struct ocfs2_extent_tree *et,
+ int type)
+{
+ return et->et_root_journal_access(handle, inode, et->et_root_bh,
+ type);
+}
+
static inline int ocfs2_et_insert_check(struct inode *inode,
struct ocfs2_extent_tree *et,
struct ocfs2_extent_rec *rec)
@@ -402,12 +405,14 @@ struct ocfs2_path_item {
#define OCFS2_MAX_PATH_DEPTH 5
struct ocfs2_path {
- int p_tree_depth;
- struct ocfs2_path_item p_node[OCFS2_MAX_PATH_DEPTH];
+ int p_tree_depth;
+ ocfs2_journal_access_func p_root_access;
+ struct ocfs2_path_item p_node[OCFS2_MAX_PATH_DEPTH];
};
#define path_root_bh(_path) ((_path)->p_node[0].bh)
#define path_root_el(_path) ((_path)->p_node[0].el)
+#define path_root_access(_path)((_path)->p_root_access)
#define path_leaf_bh(_path) ((_path)->p_node[(_path)->p_tree_depth].bh)
#define path_leaf_el(_path) ((_path)->p_node[(_path)->p_tree_depth].el)
#define path_num_items(_path) ((_path)->p_tree_depth + 1)
@@ -440,6 +445,8 @@ static void ocfs2_reinit_path(struct ocfs2_path *path, int keep_root)
*/
if (keep_root)
depth = le16_to_cpu(path_root_el(path)->l_tree_depth);
+ else
+ path_root_access(path) = NULL;
path->p_tree_depth = depth;
}
@@ -465,6 +472,7 @@ static void ocfs2_cp_path(struct ocfs2_path *dest, struct ocfs2_path *src)
BUG_ON(path_root_bh(dest) != path_root_bh(src));
BUG_ON(path_root_el(dest) != path_root_el(src));
+ BUG_ON(path_root_access(dest) != path_root_access(src));
ocfs2_reinit_path(dest, 1);
@@ -486,6 +494,7 @@ static void ocfs2_mv_path(struct ocfs2_path *dest, struct ocfs2_path *src)
int i;
BUG_ON(path_root_bh(dest) != path_root_bh(src));
+ BUG_ON(path_root_access(dest) != path_root_access(src));
for(i = 1; i < OCFS2_MAX_PATH_DEPTH; i++) {
brelse(dest->p_node[i].bh);
@@ -521,7 +530,8 @@ static inline void ocfs2_path_insert_eb(struct ocfs2_path *path, int index,
}
static struct ocfs2_path *ocfs2_new_path(struct buffer_head *root_bh,
- struct ocfs2_extent_list *root_el)
+ struct ocfs2_extent_list *root_el,
+ ocfs2_journal_access_func access)
{
struct ocfs2_path *path;
@@ -533,11 +543,48 @@ static struct ocfs2_path *ocfs2_new_path(struct buffer_head *root_bh,
get_bh(root_bh);
path_root_bh(path) = root_bh;
path_root_el(path) = root_el;
+ path_root_access(path) = access;
}
return path;
}
+static struct ocfs2_path *ocfs2_new_path_from_path(struct ocfs2_path *path)
+{
+ return ocfs2_new_path(path_root_bh(path), path_root_el(path),
+ path_root_access(path));
+}
+
+static struct ocfs2_path *ocfs2_new_path_from_et(struct ocfs2_extent_tree *et)
+{
+ return ocfs2_new_path(et->et_root_bh, et->et_root_el,
+ et->et_root_journal_access);
+}
+
+/*
+ * Journal the buffer at depth idx. All idx>0 are extent_blocks,
+ * otherwise it's the root_access function.
+ *
+ * I don't like the way this function's name looks next to
+ * ocfs2_journal_access_path(), but I don't have a better one.
+ */
+static int ocfs2_path_bh_journal_access(handle_t *handle,
+ struct inode *inode,
+ struct ocfs2_path *path,
+ int idx)
+{
+ ocfs2_journal_access_func access = path_root_access(path);
+
+ if (!access)
+ access = ocfs2_journal_access;
+
+ if (idx)
+ access = ocfs2_journal_access_eb;
+
+ return access(handle, inode, path->p_node[idx].bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+}
+
/*
* Convenience function to journal all components in a path.
*/
@@ -550,8 +597,7 @@ static int ocfs2_journal_access_path(struct inode *inode, handle_t *handle,
goto out;
for(i = 0; i < path_num_items(path); i++) {
- ret = ocfs2_journal_access(handle, inode, path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, path, i);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -686,6 +732,80 @@ struct ocfs2_merge_ctxt {
int c_split_covers_rec;
};
+static int ocfs2_validate_extent_block(struct super_block *sb,
+ struct buffer_head *bh)
+{
+ int rc;
+ struct ocfs2_extent_block *eb =
+ (struct ocfs2_extent_block *)bh->b_data;
+
+ mlog(0, "Validating extent block %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &eb->h_check);
+ if (rc) {
+ mlog(ML_ERROR, "Checksum failed for extent block %llu\n",
+ (unsigned long long)bh->b_blocknr);
+ return rc;
+ }
+
+ /*
+ * Errors after here are fatal.
+ */
+
+ if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
+ ocfs2_error(sb,
+ "Extent block #%llu has bad signature %.*s",
+ (unsigned long long)bh->b_blocknr, 7,
+ eb->h_signature);
+ return -EINVAL;
+ }
+
+ if (le64_to_cpu(eb->h_blkno) != bh->b_blocknr) {
+ ocfs2_error(sb,
+ "Extent block #%llu has an invalid h_blkno "
+ "of %llu",
+ (unsigned long long)bh->b_blocknr,
+ (unsigned long long)le64_to_cpu(eb->h_blkno));
+ return -EINVAL;
+ }
+
+ if (le32_to_cpu(eb->h_fs_generation) != OCFS2_SB(sb)->fs_generation) {
+ ocfs2_error(sb,
+ "Extent block #%llu has an invalid "
+ "h_fs_generation of #%u",
+ (unsigned long long)bh->b_blocknr,
+ le32_to_cpu(eb->h_fs_generation));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int ocfs2_read_extent_block(struct inode *inode, u64 eb_blkno,
+ struct buffer_head **bh)
+{
+ int rc;
+ struct buffer_head *tmp = *bh;
+
+ rc = ocfs2_read_block(inode, eb_blkno, &tmp,
+ ocfs2_validate_extent_block);
+
+ /* If ocfs2_read_block() got us a new bh, pass it up. */
+ if (!rc && !*bh)
+ *bh = tmp;
+
+ return rc;
+}
+
+
/*
* How many free extents have we got before we need more meta data?
*/
@@ -705,8 +825,7 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
last_eb_blk = ocfs2_et_get_last_eb_blk(et);
if (last_eb_blk) {
- retval = ocfs2_read_block(inode, last_eb_blk,
- &eb_bh);
+ retval = ocfs2_read_extent_block(inode, last_eb_blk, &eb_bh);
if (retval < 0) {
mlog_errno(retval);
goto bail;
@@ -768,8 +887,8 @@ static int ocfs2_create_new_meta_bhs(struct ocfs2_super *osb,
}
ocfs2_set_new_buffer_uptodate(inode, bhs[i]);
- status = ocfs2_journal_access(handle, inode, bhs[i],
- OCFS2_JOURNAL_ACCESS_CREATE);
+ status = ocfs2_journal_access_eb(handle, inode, bhs[i],
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -908,15 +1027,12 @@ static int ocfs2_add_branch(struct ocfs2_super *osb,
for(i = 0; i < new_blocks; i++) {
bh = new_eb_bhs[i];
eb = (struct ocfs2_extent_block *) bh->b_data;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
- status = -EIO;
- goto bail;
- }
+ /* ocfs2_create_new_meta_bhs() should create it right! */
+ BUG_ON(!OCFS2_IS_VALID_EXTENT_BLOCK(eb));
eb_el = &eb->h_list;
- status = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ status = ocfs2_journal_access_eb(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -955,21 +1071,21 @@ static int ocfs2_add_branch(struct ocfs2_super *osb,
* journal_dirty erroring as it won't unless we've aborted the
* handle (in which case we would never be here) so reserving
* the write with journal_access is all we need to do. */
- status = ocfs2_journal_access(handle, inode, *last_eb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_eb(handle, inode, *last_eb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
}
- status = ocfs2_journal_access(handle, inode, et->et_root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_et_root_journal_access(handle, inode, et,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
}
if (eb_bh) {
- status = ocfs2_journal_access(handle, inode, eb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_eb(handle, inode, eb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1052,17 +1168,14 @@ static int ocfs2_shift_tree_depth(struct ocfs2_super *osb,
}
eb = (struct ocfs2_extent_block *) new_eb_bh->b_data;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
- status = -EIO;
- goto bail;
- }
+ /* ocfs2_create_new_meta_bhs() should create it right! */
+ BUG_ON(!OCFS2_IS_VALID_EXTENT_BLOCK(eb));
eb_el = &eb->h_list;
root_el = et->et_root_el;
- status = ocfs2_journal_access(handle, inode, new_eb_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ status = ocfs2_journal_access_eb(handle, inode, new_eb_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1080,8 +1193,8 @@ static int ocfs2_shift_tree_depth(struct ocfs2_super *osb,
goto bail;
}
- status = ocfs2_journal_access(handle, inode, et->et_root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_et_root_journal_access(handle, inode, et,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1176,18 +1289,13 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
brelse(bh);
bh = NULL;
- status = ocfs2_read_block(inode, blkno, &bh);
+ status = ocfs2_read_extent_block(inode, blkno, &bh);
if (status < 0) {
mlog_errno(status);
goto bail;
}
eb = (struct ocfs2_extent_block *) bh->b_data;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
- status = -EIO;
- goto bail;
- }
el = &eb->h_list;
if (le16_to_cpu(el->l_next_free_rec) <
@@ -1540,7 +1648,7 @@ static int __ocfs2_find_path(struct inode *inode,
brelse(bh);
bh = NULL;
- ret = ocfs2_read_block(inode, blkno, &bh);
+ ret = ocfs2_read_extent_block(inode, blkno, &bh);
if (ret) {
mlog_errno(ret);
goto out;
@@ -1548,11 +1656,6 @@ static int __ocfs2_find_path(struct inode *inode,
eb = (struct ocfs2_extent_block *) bh->b_data;
el = &eb->h_list;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
- ret = -EIO;
- goto out;
- }
if (le16_to_cpu(el->l_next_free_rec) >
le16_to_cpu(el->l_count)) {
@@ -1860,25 +1963,23 @@ static int ocfs2_rotate_subtree_right(struct inode *inode,
root_bh = left_path->p_node[subtree_index].bh;
BUG_ON(root_bh != right_path->p_node[subtree_index].bh);
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+ subtree_index);
if (ret) {
mlog_errno(ret);
goto out;
}
for(i = subtree_index + 1; i < path_num_items(right_path); i++) {
- ret = ocfs2_journal_access(handle, inode,
- right_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ right_path, i);
if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode,
- left_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ left_path, i);
if (ret) {
mlog_errno(ret);
goto out;
@@ -2102,8 +2203,7 @@ static int ocfs2_rotate_tree_right(struct inode *inode,
*ret_left_path = NULL;
- left_path = ocfs2_new_path(path_root_bh(right_path),
- path_root_el(right_path));
+ left_path = ocfs2_new_path_from_path(right_path);
if (!left_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -2398,9 +2498,9 @@ static int ocfs2_rotate_subtree_left(struct inode *inode, handle_t *handle,
return -EAGAIN;
if (le16_to_cpu(right_leaf_el->l_next_free_rec) > 1) {
- ret = ocfs2_journal_access(handle, inode,
- path_leaf_bh(right_path),
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_eb(handle, inode,
+ path_leaf_bh(right_path),
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -2417,8 +2517,8 @@ static int ocfs2_rotate_subtree_left(struct inode *inode, handle_t *handle,
* We have to update i_last_eb_blk during the meta
* data delete.
*/
- ret = ocfs2_journal_access(handle, inode, et_root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_et_root_journal_access(handle, inode, et,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -2433,25 +2533,23 @@ static int ocfs2_rotate_subtree_left(struct inode *inode, handle_t *handle,
*/
BUG_ON(right_has_empty && !del_right_subtree);
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+ subtree_index);
if (ret) {
mlog_errno(ret);
goto out;
}
for(i = subtree_index + 1; i < path_num_items(right_path); i++) {
- ret = ocfs2_journal_access(handle, inode,
- right_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ right_path, i);
if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode,
- left_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ left_path, i);
if (ret) {
mlog_errno(ret);
goto out;
@@ -2596,16 +2694,17 @@ out:
static int ocfs2_rotate_rightmost_leaf_left(struct inode *inode,
handle_t *handle,
- struct buffer_head *bh,
- struct ocfs2_extent_list *el)
+ struct ocfs2_path *path)
{
int ret;
+ struct buffer_head *bh = path_leaf_bh(path);
+ struct ocfs2_extent_list *el = path_leaf_el(path);
if (!ocfs2_is_empty_extent(&el->l_recs[0]))
return 0;
- ret = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, path,
+ path_num_items(path) - 1);
if (ret) {
mlog_errno(ret);
goto out;
@@ -2644,8 +2743,7 @@ static int __ocfs2_rotate_tree_left(struct inode *inode,
goto out;
}
- left_path = ocfs2_new_path(path_root_bh(path),
- path_root_el(path));
+ left_path = ocfs2_new_path_from_path(path);
if (!left_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -2654,8 +2752,7 @@ static int __ocfs2_rotate_tree_left(struct inode *inode,
ocfs2_cp_path(left_path, path);
- right_path = ocfs2_new_path(path_root_bh(path),
- path_root_el(path));
+ right_path = ocfs2_new_path_from_path(path);
if (!right_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -2689,9 +2786,8 @@ static int __ocfs2_rotate_tree_left(struct inode *inode,
* Caller might still want to make changes to the
* tree root, so re-add it to the journal here.
*/
- ret = ocfs2_journal_access(handle, inode,
- path_root_bh(left_path),
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ left_path, 0);
if (ret) {
mlog_errno(ret);
goto out;
@@ -2785,8 +2881,7 @@ static int ocfs2_remove_rightmost_path(struct inode *inode, handle_t *handle,
* We have a path to the left of this one - it needs
* an update too.
*/
- left_path = ocfs2_new_path(path_root_bh(path),
- path_root_el(path));
+ left_path = ocfs2_new_path_from_path(path);
if (!left_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -2875,8 +2970,7 @@ rightmost_no_delete:
* it up front.
*/
ret = ocfs2_rotate_rightmost_leaf_left(inode, handle,
- path_leaf_bh(path),
- path_leaf_el(path));
+ path);
if (ret)
mlog_errno(ret);
goto out;
@@ -3027,8 +3121,7 @@ static int ocfs2_get_right_path(struct inode *inode,
/* This function shouldn't be called for the rightmost leaf. */
BUG_ON(right_cpos == 0);
- right_path = ocfs2_new_path(path_root_bh(left_path),
- path_root_el(left_path));
+ right_path = ocfs2_new_path_from_path(left_path);
if (!right_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -3111,8 +3204,8 @@ static int ocfs2_merge_rec_right(struct inode *inode,
root_bh = left_path->p_node[subtree_index].bh;
BUG_ON(root_bh != right_path->p_node[subtree_index].bh);
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+ subtree_index);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3120,17 +3213,15 @@ static int ocfs2_merge_rec_right(struct inode *inode,
for (i = subtree_index + 1;
i < path_num_items(right_path); i++) {
- ret = ocfs2_journal_access(handle, inode,
- right_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ right_path, i);
if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode,
- left_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ left_path, i);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3142,8 +3233,8 @@ static int ocfs2_merge_rec_right(struct inode *inode,
right_rec = &el->l_recs[index + 1];
}
- ret = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, left_path,
+ path_num_items(left_path) - 1);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3199,8 +3290,7 @@ static int ocfs2_get_left_path(struct inode *inode,
/* This function shouldn't be called for the leftmost leaf. */
BUG_ON(left_cpos == 0);
- left_path = ocfs2_new_path(path_root_bh(right_path),
- path_root_el(right_path));
+ left_path = ocfs2_new_path_from_path(right_path);
if (!left_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -3283,8 +3373,8 @@ static int ocfs2_merge_rec_left(struct inode *inode,
root_bh = left_path->p_node[subtree_index].bh;
BUG_ON(root_bh != right_path->p_node[subtree_index].bh);
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+ subtree_index);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3292,17 +3382,15 @@ static int ocfs2_merge_rec_left(struct inode *inode,
for (i = subtree_index + 1;
i < path_num_items(right_path); i++) {
- ret = ocfs2_journal_access(handle, inode,
- right_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ right_path, i);
if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode,
- left_path->p_node[i].bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode,
+ left_path, i);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3314,8 +3402,8 @@ static int ocfs2_merge_rec_left(struct inode *inode,
has_empty_extent = 1;
}
- ret = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+ path_num_items(right_path) - 1);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3732,8 +3820,7 @@ static int ocfs2_append_rec_to_path(struct inode *inode, handle_t *handle,
* leftmost leaf.
*/
if (left_cpos) {
- left_path = ocfs2_new_path(path_root_bh(right_path),
- path_root_el(right_path));
+ left_path = ocfs2_new_path_from_path(right_path);
if (!left_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -3958,8 +4045,8 @@ static int ocfs2_do_insert_extent(struct inode *inode,
el = et->et_root_el;
- ret = ocfs2_journal_access(handle, inode, et->et_root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_et_root_journal_access(handle, inode, et,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3970,7 +4057,7 @@ static int ocfs2_do_insert_extent(struct inode *inode,
goto out_update_clusters;
}
- right_path = ocfs2_new_path(et->et_root_bh, et->et_root_el);
+ right_path = ocfs2_new_path_from_et(et);
if (!right_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -4020,8 +4107,8 @@ static int ocfs2_do_insert_extent(struct inode *inode,
* ocfs2_rotate_tree_right() might have extended the
* transaction without re-journaling our tree root.
*/
- ret = ocfs2_journal_access(handle, inode, et->et_root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_et_root_journal_access(handle, inode, et,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -4082,8 +4169,7 @@ ocfs2_figure_merge_contig_type(struct inode *inode, struct ocfs2_path *path,
goto out;
if (left_cpos != 0) {
- left_path = ocfs2_new_path(path_root_bh(path),
- path_root_el(path));
+ left_path = ocfs2_new_path_from_path(path);
if (!left_path)
goto out;
@@ -4097,8 +4183,15 @@ ocfs2_figure_merge_contig_type(struct inode *inode, struct ocfs2_path *path,
le16_to_cpu(new_el->l_count)) {
bh = path_leaf_bh(left_path);
eb = (struct ocfs2_extent_block *)bh->b_data;
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb,
- eb);
+ ocfs2_error(inode->i_sb,
+ "Extent block #%llu has an "
+ "invalid l_next_free_rec of "
+ "%d. It should have "
+ "matched the l_count of %d",
+ (unsigned long long)le64_to_cpu(eb->h_blkno),
+ le16_to_cpu(new_el->l_next_free_rec),
+ le16_to_cpu(new_el->l_count));
+ status = -EINVAL;
goto out;
}
rec = &new_el->l_recs[
@@ -4132,8 +4225,7 @@ ocfs2_figure_merge_contig_type(struct inode *inode, struct ocfs2_path *path,
if (right_cpos == 0)
goto out;
- right_path = ocfs2_new_path(path_root_bh(path),
- path_root_el(path));
+ right_path = ocfs2_new_path_from_path(path);
if (!right_path)
goto out;
@@ -4147,8 +4239,12 @@ ocfs2_figure_merge_contig_type(struct inode *inode, struct ocfs2_path *path,
if (le16_to_cpu(new_el->l_next_free_rec) <= 1) {
bh = path_leaf_bh(right_path);
eb = (struct ocfs2_extent_block *)bh->b_data;
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb,
- eb);
+ ocfs2_error(inode->i_sb,
+ "Extent block #%llu has an "
+ "invalid l_next_free_rec of %d",
+ (unsigned long long)le64_to_cpu(eb->h_blkno),
+ le16_to_cpu(new_el->l_next_free_rec));
+ status = -EINVAL;
goto out;
}
rec = &new_el->l_recs[1];
@@ -4294,7 +4390,9 @@ static int ocfs2_figure_insert_type(struct inode *inode,
* ocfs2_figure_insert_type() and ocfs2_add_branch()
* may want it later.
*/
- ret = ocfs2_read_block(inode, ocfs2_et_get_last_eb_blk(et), &bh);
+ ret = ocfs2_read_extent_block(inode,
+ ocfs2_et_get_last_eb_blk(et),
+ &bh);
if (ret) {
mlog_exit(ret);
goto out;
@@ -4320,7 +4418,7 @@ static int ocfs2_figure_insert_type(struct inode *inode,
return 0;
}
- path = ocfs2_new_path(et->et_root_bh, et->et_root_el);
+ path = ocfs2_new_path_from_et(et);
if (!path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -4531,9 +4629,9 @@ int ocfs2_add_clusters_in_btree(struct ocfs2_super *osb,
BUG_ON(num_bits > clusters_to_add);
- /* reserve our write early -- insert_extent may update the inode */
- status = ocfs2_journal_access(handle, inode, et->et_root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ /* reserve our write early -- insert_extent may update the tree root */
+ status = ocfs2_et_root_journal_access(handle, inode, et,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -4760,20 +4858,15 @@ static int __ocfs2_mark_extent_written(struct inode *inode,
if (path->p_tree_depth) {
struct ocfs2_extent_block *eb;
- ret = ocfs2_read_block(inode, ocfs2_et_get_last_eb_blk(et),
- &last_eb_bh);
+ ret = ocfs2_read_extent_block(inode,
+ ocfs2_et_get_last_eb_blk(et),
+ &last_eb_bh);
if (ret) {
mlog_exit(ret);
goto out;
}
eb = (struct ocfs2_extent_block *) last_eb_bh->b_data;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
- ret = -EROFS;
- goto out;
- }
-
rightmost_el = &eb->h_list;
} else
rightmost_el = path_root_el(path);
@@ -4854,7 +4947,7 @@ int ocfs2_mark_extent_written(struct inode *inode,
if (et->et_ops == &ocfs2_dinode_et_ops)
ocfs2_extent_map_trunc(inode, 0);
- left_path = ocfs2_new_path(et->et_root_bh, et->et_root_el);
+ left_path = ocfs2_new_path_from_et(et);
if (!left_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -4918,8 +5011,9 @@ static int ocfs2_split_tree(struct inode *inode, struct ocfs2_extent_tree *et,
depth = path->p_tree_depth;
if (depth > 0) {
- ret = ocfs2_read_block(inode, ocfs2_et_get_last_eb_blk(et),
- &last_eb_bh);
+ ret = ocfs2_read_extent_block(inode,
+ ocfs2_et_get_last_eb_blk(et),
+ &last_eb_bh);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -5025,8 +5119,7 @@ static int ocfs2_truncate_rec(struct inode *inode, handle_t *handle,
}
if (left_cpos && le16_to_cpu(el->l_next_free_rec) > 1) {
- left_path = ocfs2_new_path(path_root_bh(path),
- path_root_el(path));
+ left_path = ocfs2_new_path_from_path(path);
if (!left_path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -5135,7 +5228,7 @@ int ocfs2_remove_extent(struct inode *inode,
ocfs2_extent_map_trunc(inode, 0);
- path = ocfs2_new_path(et->et_root_bh, et->et_root_el);
+ path = ocfs2_new_path_from_et(et);
if (!path) {
ret = -ENOMEM;
mlog_errno(ret);
@@ -5255,6 +5348,78 @@ out:
return ret;
}
+int ocfs2_remove_btree_range(struct inode *inode,
+ struct ocfs2_extent_tree *et,
+ u32 cpos, u32 phys_cpos, u32 len,
+ struct ocfs2_cached_dealloc_ctxt *dealloc)
+{
+ int ret;
+ u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct inode *tl_inode = osb->osb_tl_inode;
+ handle_t *handle;
+ struct ocfs2_alloc_context *meta_ac = NULL;
+
+ ret = ocfs2_lock_allocators(inode, et, 0, 1, NULL, &meta_ac);
+ if (ret) {
+ mlog_errno(ret);
+ return ret;
+ }
+
+ mutex_lock(&tl_inode->i_mutex);
+
+ if (ocfs2_truncate_log_needs_flush(osb)) {
+ ret = __ocfs2_flush_truncate_log(osb);
+ if (ret < 0) {
+ mlog_errno(ret);
+ goto out;
+ }
+ }
+
+ handle = ocfs2_start_trans(osb, ocfs2_remove_extent_credits(osb->sb));
+ if (IS_ERR(handle)) {
+ ret = PTR_ERR(handle);
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_et_root_journal_access(handle, inode, et,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_remove_extent(inode, et, cpos, len, handle, meta_ac,
+ dealloc);
+ if (ret) {
+ mlog_errno(ret);
+ goto out_commit;
+ }
+
+ ocfs2_et_update_clusters(inode, et, -len);
+
+ ret = ocfs2_journal_dirty(handle, et->et_root_bh);
+ if (ret) {
+ mlog_errno(ret);
+ goto out_commit;
+ }
+
+ ret = ocfs2_truncate_log_append(osb, handle, phys_blkno, len);
+ if (ret)
+ mlog_errno(ret);
+
+out_commit:
+ ocfs2_commit_trans(osb, handle);
+out:
+ mutex_unlock(&tl_inode->i_mutex);
+
+ if (meta_ac)
+ ocfs2_free_alloc_context(meta_ac);
+
+ return ret;
+}
+
int ocfs2_truncate_log_needs_flush(struct ocfs2_super *osb)
{
struct buffer_head *tl_bh = osb->osb_tl_bh;
@@ -5308,13 +5473,13 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb,
start_cluster = ocfs2_blocks_to_clusters(osb->sb, start_blk);
di = (struct ocfs2_dinode *) tl_bh->b_data;
- tl = &di->id2.i_dealloc;
- if (!OCFS2_IS_VALID_DINODE(di)) {
- OCFS2_RO_ON_INVALID_DINODE(osb->sb, di);
- status = -EIO;
- goto bail;
- }
+ /* tl_bh is loaded from ocfs2_truncate_log_init(). It's validated
+ * by the underlying call to ocfs2_read_inode_block(), so any
+ * corruption is a code bug */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(di));
+
+ tl = &di->id2.i_dealloc;
tl_count = le16_to_cpu(tl->tl_count);
mlog_bug_on_msg(tl_count > ocfs2_truncate_recs_per_inode(osb->sb) ||
tl_count == 0,
@@ -5332,8 +5497,8 @@ int ocfs2_truncate_log_append(struct ocfs2_super *osb,
goto bail;
}
- status = ocfs2_journal_access(handle, tl_inode, tl_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, tl_inode, tl_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -5394,8 +5559,8 @@ static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
while (i >= 0) {
/* Caller has given us at least enough credits to
* update the truncate log dinode */
- status = ocfs2_journal_access(handle, tl_inode, tl_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, tl_inode, tl_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -5464,13 +5629,13 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
BUG_ON(mutex_trylock(&tl_inode->i_mutex));
di = (struct ocfs2_dinode *) tl_bh->b_data;
- tl = &di->id2.i_dealloc;
- if (!OCFS2_IS_VALID_DINODE(di)) {
- OCFS2_RO_ON_INVALID_DINODE(osb->sb, di);
- status = -EIO;
- goto out;
- }
+ /* tl_bh is loaded from ocfs2_truncate_log_init(). It's validated
+ * by the underlying call to ocfs2_read_inode_block(), so any
+ * corruption is a code bug */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(di));
+
+ tl = &di->id2.i_dealloc;
num_to_flush = le16_to_cpu(tl->tl_used);
mlog(0, "Flush %u records from truncate log #%llu\n",
num_to_flush, (unsigned long long)OCFS2_I(tl_inode)->ip_blkno);
@@ -5586,7 +5751,7 @@ static int ocfs2_get_truncate_log_info(struct ocfs2_super *osb,
goto bail;
}
- status = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &bh);
+ status = ocfs2_read_inode_block(inode, &bh);
if (status < 0) {
iput(inode);
mlog_errno(status);
@@ -5625,13 +5790,13 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb,
}
di = (struct ocfs2_dinode *) tl_bh->b_data;
- tl = &di->id2.i_dealloc;
- if (!OCFS2_IS_VALID_DINODE(di)) {
- OCFS2_RO_ON_INVALID_DINODE(tl_inode->i_sb, di);
- status = -EIO;
- goto bail;
- }
+ /* tl_bh is loaded from ocfs2_get_truncate_log_info(). It's
+ * validated by the underlying call to ocfs2_read_inode_block(),
+ * so any corruption is a code bug */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(di));
+
+ tl = &di->id2.i_dealloc;
if (le16_to_cpu(tl->tl_used)) {
mlog(0, "We'll have %u logs to recover\n",
le16_to_cpu(tl->tl_used));
@@ -5651,6 +5816,7 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb,
* tl_used. */
tl->tl_used = 0;
+ ocfs2_compute_meta_ecc(osb->sb, tl_bh->b_data, &di->i_check);
status = ocfs2_write_block(osb, tl_bh, tl_inode);
if (status < 0) {
mlog_errno(status);
@@ -5800,7 +5966,10 @@ int ocfs2_truncate_log_init(struct ocfs2_super *osb)
*/
/*
- * Describes a single block free from a suballocator
+ * Describe a single bit freed from a suballocator. For the block
+ * suballocators, it represents one block. For the global cluster
+ * allocator, it represents some clusters and free_bit indicates
+ * clusters number.
*/
struct ocfs2_cached_block_free {
struct ocfs2_cached_block_free *free_next;
@@ -5815,10 +5984,10 @@ struct ocfs2_per_slot_free_list {
struct ocfs2_cached_block_free *f_first;
};
-static int ocfs2_free_cached_items(struct ocfs2_super *osb,
- int sysfile_type,
- int slot,
- struct ocfs2_cached_block_free *head)
+static int ocfs2_free_cached_blocks(struct ocfs2_super *osb,
+ int sysfile_type,
+ int slot,
+ struct ocfs2_cached_block_free *head)
{
int ret;
u64 bg_blkno;
@@ -5893,6 +6062,82 @@ out:
return ret;
}
+int ocfs2_cache_cluster_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
+ u64 blkno, unsigned int bit)
+{
+ int ret = 0;
+ struct ocfs2_cached_block_free *item;
+
+ item = kmalloc(sizeof(*item), GFP_NOFS);
+ if (item == NULL) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ return ret;
+ }
+
+ mlog(0, "Insert clusters: (bit %u, blk %llu)\n",
+ bit, (unsigned long long)blkno);
+
+ item->free_blk = blkno;
+ item->free_bit = bit;
+ item->free_next = ctxt->c_global_allocator;
+
+ ctxt->c_global_allocator = item;
+ return ret;
+}
+
+static int ocfs2_free_cached_clusters(struct ocfs2_super *osb,
+ struct ocfs2_cached_block_free *head)
+{
+ struct ocfs2_cached_block_free *tmp;
+ struct inode *tl_inode = osb->osb_tl_inode;
+ handle_t *handle;
+ int ret = 0;
+
+ mutex_lock(&tl_inode->i_mutex);
+
+ while (head) {
+ if (ocfs2_truncate_log_needs_flush(osb)) {
+ ret = __ocfs2_flush_truncate_log(osb);
+ if (ret < 0) {
+ mlog_errno(ret);
+ break;
+ }
+ }
+
+ handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_UPDATE);
+ if (IS_ERR(handle)) {
+ ret = PTR_ERR(handle);
+ mlog_errno(ret);
+ break;
+ }
+
+ ret = ocfs2_truncate_log_append(osb, handle, head->free_blk,
+ head->free_bit);
+
+ ocfs2_commit_trans(osb, handle);
+ tmp = head;
+ head = head->free_next;
+ kfree(tmp);
+
+ if (ret < 0) {
+ mlog_errno(ret);
+ break;
+ }
+ }
+
+ mutex_unlock(&tl_inode->i_mutex);
+
+ while (head) {
+ /* Premature exit may have left some dangling items. */
+ tmp = head;
+ head = head->free_next;
+ kfree(tmp);
+ }
+
+ return ret;
+}
+
int ocfs2_run_deallocs(struct ocfs2_super *osb,
struct ocfs2_cached_dealloc_ctxt *ctxt)
{
@@ -5908,8 +6153,10 @@ int ocfs2_run_deallocs(struct ocfs2_super *osb,
if (fl->f_first) {
mlog(0, "Free items: (type %u, slot %d)\n",
fl->f_inode_type, fl->f_slot);
- ret2 = ocfs2_free_cached_items(osb, fl->f_inode_type,
- fl->f_slot, fl->f_first);
+ ret2 = ocfs2_free_cached_blocks(osb,
+ fl->f_inode_type,
+ fl->f_slot,
+ fl->f_first);
if (ret2)
mlog_errno(ret2);
if (!ret)
@@ -5920,6 +6167,17 @@ int ocfs2_run_deallocs(struct ocfs2_super *osb,
kfree(fl);
}
+ if (ctxt->c_global_allocator) {
+ ret2 = ocfs2_free_cached_clusters(osb,
+ ctxt->c_global_allocator);
+ if (ret2)
+ mlog_errno(ret2);
+ if (!ret)
+ ret = ret2;
+
+ ctxt->c_global_allocator = NULL;
+ }
+
return ret;
}
@@ -6075,11 +6333,10 @@ static int ocfs2_find_new_last_ext_blk(struct inode *inode,
eb = (struct ocfs2_extent_block *) bh->b_data;
el = &eb->h_list;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
- ret = -EROFS;
- goto out;
- }
+
+ /* ocfs2_find_leaf() gets the eb from ocfs2_read_extent_block().
+ * Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_EXTENT_BLOCK(eb));
*new_last_eb = bh;
get_bh(*new_last_eb);
@@ -6326,8 +6583,8 @@ static int ocfs2_do_truncate(struct ocfs2_super *osb,
}
if (last_eb_bh) {
- status = ocfs2_journal_access(handle, inode, last_eb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_eb(handle, inode, last_eb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -6350,6 +6607,8 @@ static int ocfs2_do_truncate(struct ocfs2_super *osb,
goto bail;
}
+ vfs_dq_free_space_nodirty(inode,
+ ocfs2_clusters_to_bytes(osb->sb, clusters_to_del));
spin_lock(&OCFS2_I(inode)->ip_lock);
OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters) -
clusters_to_del;
@@ -6436,11 +6695,6 @@ static void ocfs2_map_and_dirty_page(struct inode *inode, handle_t *handle,
mlog_errno(ret);
else if (ocfs2_should_order_data(inode)) {
ret = ocfs2_jbd2_file_inode(handle, inode);
-#ifdef CONFIG_OCFS2_COMPAT_JBD
- ret = walk_page_buffers(handle, page_buffers(page),
- from, to, &partial,
- ocfs2_journal_dirty_data);
-#endif
if (ret < 0)
mlog_errno(ret);
}
@@ -6663,6 +6917,7 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
struct page **pages = NULL;
loff_t end = osb->s_clustersize;
struct ocfs2_extent_tree et;
+ int did_quota = 0;
has_data = i_size_read(inode) ? 1 : 0;
@@ -6682,15 +6937,16 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
}
}
- handle = ocfs2_start_trans(osb, OCFS2_INLINE_TO_EXTENTS_CREDITS);
+ handle = ocfs2_start_trans(osb,
+ ocfs2_inline_to_extents_credits(osb->sb));
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
mlog_errno(ret);
goto out_unlock;
}
- ret = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -6701,6 +6957,13 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
unsigned int page_end;
u64 phys;
+ if (vfs_dq_alloc_space_nodirty(inode,
+ ocfs2_clusters_to_bytes(osb->sb, 1))) {
+ ret = -EDQUOT;
+ goto out_commit;
+ }
+ did_quota = 1;
+
ret = ocfs2_claim_clusters(osb, handle, data_ac, 1, &bit_off,
&num);
if (ret) {
@@ -6774,6 +7037,10 @@ int ocfs2_convert_inline_data_to_extents(struct inode *inode,
}
out_commit:
+ if (ret < 0 && did_quota)
+ vfs_dq_free_space_nodirty(inode,
+ ocfs2_clusters_to_bytes(osb->sb, 1));
+
ocfs2_commit_trans(osb, handle);
out_unlock:
@@ -6813,7 +7080,8 @@ int ocfs2_commit_truncate(struct ocfs2_super *osb,
new_highest_cpos = ocfs2_clusters_for_bytes(osb->sb,
i_size_read(inode));
- path = ocfs2_new_path(fe_bh, &di->id2.i_list);
+ path = ocfs2_new_path(fe_bh, &di->id2.i_list,
+ ocfs2_journal_access_di);
if (!path) {
status = -ENOMEM;
mlog_errno(status);
@@ -6984,20 +7252,14 @@ int ocfs2_prepare_truncate(struct ocfs2_super *osb,
ocfs2_init_dealloc_ctxt(&(*tc)->tc_dealloc);
if (fe->id2.i_list.l_tree_depth) {
- status = ocfs2_read_block(inode, le64_to_cpu(fe->i_last_eb_blk),
- &last_eb_bh);
+ status = ocfs2_read_extent_block(inode,
+ le64_to_cpu(fe->i_last_eb_blk),
+ &last_eb_bh);
if (status < 0) {
mlog_errno(status);
goto bail;
}
eb = (struct ocfs2_extent_block *) last_eb_bh->b_data;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
-
- brelse(last_eb_bh);
- status = -EIO;
- goto bail;
- }
}
(*tc)->tc_last_eb_bh = last_eb_bh;
@@ -7052,8 +7314,8 @@ int ocfs2_truncate_inline(struct inode *inode, struct buffer_head *di_bh,
goto out;
}
- ret = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out_commit;
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index 70257c84cfbe..cceff5c37f47 100644
--- a/fs/ocfs2/alloc.h
+++ b/fs/ocfs2/alloc.h
@@ -45,7 +45,9 @@
*
* ocfs2_extent_tree contains info for the root of the b-tree, it must have a
* root ocfs2_extent_list and a root_bh so that they can be used in the b-tree
- * functions.
+ * functions. With metadata ecc, we now call different journal_access
+ * functions for each type of metadata, so it must have the
+ * root_journal_access function.
* ocfs2_extent_tree_operations abstract the normal operations we do for
* the root of extent b-tree.
*/
@@ -54,6 +56,7 @@ struct ocfs2_extent_tree {
struct ocfs2_extent_tree_operations *et_ops;
struct buffer_head *et_root_bh;
struct ocfs2_extent_list *et_root_el;
+ ocfs2_journal_access_func et_root_journal_access;
void *et_object;
unsigned int et_max_leaf_clusters;
};
@@ -68,10 +71,18 @@ void ocfs2_init_dinode_extent_tree(struct ocfs2_extent_tree *et,
void ocfs2_init_xattr_tree_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
struct buffer_head *bh);
+struct ocfs2_xattr_value_buf;
void ocfs2_init_xattr_value_extent_tree(struct ocfs2_extent_tree *et,
struct inode *inode,
- struct buffer_head *bh,
- struct ocfs2_xattr_value_root *xv);
+ struct ocfs2_xattr_value_buf *vb);
+
+/*
+ * Read an extent block into *bh. If *bh is NULL, a bh will be
+ * allocated. This is a cached read. The extent block will be validated
+ * with ocfs2_validate_extent_block().
+ */
+int ocfs2_read_extent_block(struct inode *inode, u64 eb_blkno,
+ struct buffer_head **bh);
struct ocfs2_alloc_context;
int ocfs2_insert_extent(struct ocfs2_super *osb,
@@ -110,6 +121,11 @@ int ocfs2_remove_extent(struct inode *inode,
u32 cpos, u32 len, handle_t *handle,
struct ocfs2_alloc_context *meta_ac,
struct ocfs2_cached_dealloc_ctxt *dealloc);
+int ocfs2_remove_btree_range(struct inode *inode,
+ struct ocfs2_extent_tree *et,
+ u32 cpos, u32 phys_cpos, u32 len,
+ struct ocfs2_cached_dealloc_ctxt *dealloc);
+
int ocfs2_num_free_extents(struct ocfs2_super *osb,
struct inode *inode,
struct ocfs2_extent_tree *et);
@@ -167,10 +183,18 @@ int __ocfs2_flush_truncate_log(struct ocfs2_super *osb);
*/
struct ocfs2_cached_dealloc_ctxt {
struct ocfs2_per_slot_free_list *c_first_suballocator;
+ struct ocfs2_cached_block_free *c_global_allocator;
};
static inline void ocfs2_init_dealloc_ctxt(struct ocfs2_cached_dealloc_ctxt *c)
{
c->c_first_suballocator = NULL;
+ c->c_global_allocator = NULL;
+}
+int ocfs2_cache_cluster_dealloc(struct ocfs2_cached_dealloc_ctxt *ctxt,
+ u64 blkno, unsigned int bit);
+static inline int ocfs2_dealloc_has_cluster(struct ocfs2_cached_dealloc_ctxt *c)
+{
+ return c->c_global_allocator != NULL;
}
int ocfs2_run_deallocs(struct ocfs2_super *osb,
struct ocfs2_cached_dealloc_ctxt *ctxt);
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index c22543b33420..a067a6cffb01 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -27,6 +27,7 @@
#include <linux/swap.h>
#include <linux/pipe_fs_i.h>
#include <linux/mpage.h>
+#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_FILE_IO
#include <cluster/masklog.h>
@@ -68,20 +69,13 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock,
goto bail;
}
- status = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &bh);
+ status = ocfs2_read_inode_block(inode, &bh);
if (status < 0) {
mlog_errno(status);
goto bail;
}
fe = (struct ocfs2_dinode *) bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- mlog(ML_ERROR, "Invalid dinode #%llu: signature = %.*s\n",
- (unsigned long long)le64_to_cpu(fe->i_blkno), 7,
- fe->i_signature);
- goto bail;
- }
-
if ((u64)iblock >= ocfs2_clusters_to_blocks(inode->i_sb,
le32_to_cpu(fe->i_clusters))) {
mlog(ML_ERROR, "block offset is outside the allocated size: "
@@ -262,7 +256,7 @@ static int ocfs2_readpage_inline(struct inode *inode, struct page *page)
BUG_ON(!PageLocked(page));
BUG_ON(!(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL));
- ret = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &di_bh);
+ ret = ocfs2_read_inode_block(inode, &di_bh);
if (ret) {
mlog_errno(ret);
goto out;
@@ -481,12 +475,6 @@ handle_t *ocfs2_start_walk_page_trans(struct inode *inode,
if (ocfs2_should_order_data(inode)) {
ret = ocfs2_jbd2_file_inode(handle, inode);
-#ifdef CONFIG_OCFS2_COMPAT_JBD
- ret = walk_page_buffers(handle,
- page_buffers(page),
- from, to, NULL,
- ocfs2_journal_dirty_data);
-#endif
if (ret < 0)
mlog_errno(ret);
}
@@ -1072,15 +1060,8 @@ static void ocfs2_write_failure(struct inode *inode,
tmppage = wc->w_pages[i];
if (page_has_buffers(tmppage)) {
- if (ocfs2_should_order_data(inode)) {
+ if (ocfs2_should_order_data(inode))
ocfs2_jbd2_file_inode(wc->w_handle, inode);
-#ifdef CONFIG_OCFS2_COMPAT_JBD
- walk_page_buffers(wc->w_handle,
- page_buffers(tmppage),
- from, to, NULL,
- ocfs2_journal_dirty_data);
-#endif
- }
block_commit_write(tmppage, from, to);
}
@@ -1531,8 +1512,8 @@ static int ocfs2_write_begin_inline(struct address_space *mapping,
goto out;
}
- ret = ocfs2_journal_access(handle, inode, wc->w_di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, wc->w_di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
ocfs2_commit_trans(osb, handle);
@@ -1750,15 +1731,20 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
wc->w_handle = handle;
+ if (clusters_to_alloc && vfs_dq_alloc_space_nodirty(inode,
+ ocfs2_clusters_to_bytes(osb->sb, clusters_to_alloc))) {
+ ret = -EDQUOT;
+ goto out_commit;
+ }
/*
* We don't want this to fail in ocfs2_write_end(), so do it
* here.
*/
- ret = ocfs2_journal_access(handle, inode, wc->w_di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, wc->w_di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out_quota;
}
/*
@@ -1771,14 +1757,14 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
mmap_page);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out_quota;
}
ret = ocfs2_write_cluster_by_desc(mapping, data_ac, meta_ac, wc, pos,
len);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out_quota;
}
if (data_ac)
@@ -1790,6 +1776,10 @@ success:
*pagep = wc->w_target_page;
*fsdata = wc;
return 0;
+out_quota:
+ if (clusters_to_alloc)
+ vfs_dq_free_space(inode,
+ ocfs2_clusters_to_bytes(osb->sb, clusters_to_alloc));
out_commit:
ocfs2_commit_trans(osb, handle);
@@ -1919,15 +1909,8 @@ int ocfs2_write_end_nolock(struct address_space *mapping,
}
if (page_has_buffers(tmppage)) {
- if (ocfs2_should_order_data(inode)) {
+ if (ocfs2_should_order_data(inode))
ocfs2_jbd2_file_inode(wc->w_handle, inode);
-#ifdef CONFIG_OCFS2_COMPAT_JBD
- walk_page_buffers(wc->w_handle,
- page_buffers(tmppage),
- from, to, NULL,
- ocfs2_journal_dirty_data);
-#endif
- }
block_commit_write(tmppage, from, to);
}
}
diff --git a/fs/ocfs2/blockcheck.c b/fs/ocfs2/blockcheck.c
new file mode 100644
index 000000000000..2a947c44e594
--- /dev/null
+++ b/fs/ocfs2/blockcheck.c
@@ -0,0 +1,477 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * blockcheck.c
+ *
+ * Checksum and ECC codes for the OCFS2 userspace library.
+ *
+ * Copyright (C) 2006, 2008 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License, version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/crc32.h>
+#include <linux/buffer_head.h>
+#include <linux/bitops.h>
+#include <asm/byteorder.h>
+
+#include <cluster/masklog.h>
+
+#include "ocfs2.h"
+
+#include "blockcheck.h"
+
+
+/*
+ * We use the following conventions:
+ *
+ * d = # data bits
+ * p = # parity bits
+ * c = # total code bits (d + p)
+ */
+
+
+/*
+ * Calculate the bit offset in the hamming code buffer based on the bit's
+ * offset in the data buffer. Since the hamming code reserves all
+ * power-of-two bits for parity, the data bit number and the code bit
+ * number are offest by all the parity bits beforehand.
+ *
+ * Recall that bit numbers in hamming code are 1-based. This function
+ * takes the 0-based data bit from the caller.
+ *
+ * An example. Take bit 1 of the data buffer. 1 is a power of two (2^0),
+ * so it's a parity bit. 2 is a power of two (2^1), so it's a parity bit.
+ * 3 is not a power of two. So bit 1 of the data buffer ends up as bit 3
+ * in the code buffer.
+ *
+ * The caller can pass in *p if it wants to keep track of the most recent
+ * number of parity bits added. This allows the function to start the
+ * calculation at the last place.
+ */
+static unsigned int calc_code_bit(unsigned int i, unsigned int *p_cache)
+{
+ unsigned int b, p = 0;
+
+ /*
+ * Data bits are 0-based, but we're talking code bits, which
+ * are 1-based.
+ */
+ b = i + 1;
+
+ /* Use the cache if it is there */
+ if (p_cache)
+ p = *p_cache;
+ b += p;
+
+ /*
+ * For every power of two below our bit number, bump our bit.
+ *
+ * We compare with (b + 1) because we have to compare with what b
+ * would be _if_ it were bumped up by the parity bit. Capice?
+ *
+ * p is set above.
+ */
+ for (; (1 << p) < (b + 1); p++)
+ b++;
+
+ if (p_cache)
+ *p_cache = p;
+
+ return b;
+}
+
+/*
+ * This is the low level encoder function. It can be called across
+ * multiple hunks just like the crc32 code. 'd' is the number of bits
+ * _in_this_hunk_. nr is the bit offset of this hunk. So, if you had
+ * two 512B buffers, you would do it like so:
+ *
+ * parity = ocfs2_hamming_encode(0, buf1, 512 * 8, 0);
+ * parity = ocfs2_hamming_encode(parity, buf2, 512 * 8, 512 * 8);
+ *
+ * If you just have one buffer, use ocfs2_hamming_encode_block().
+ */
+u32 ocfs2_hamming_encode(u32 parity, void *data, unsigned int d, unsigned int nr)
+{
+ unsigned int i, b, p = 0;
+
+ BUG_ON(!d);
+
+ /*
+ * b is the hamming code bit number. Hamming code specifies a
+ * 1-based array, but C uses 0-based. So 'i' is for C, and 'b' is
+ * for the algorithm.
+ *
+ * The i++ in the for loop is so that the start offset passed
+ * to ocfs2_find_next_bit_set() is one greater than the previously
+ * found bit.
+ */
+ for (i = 0; (i = ocfs2_find_next_bit(data, d, i)) < d; i++)
+ {
+ /*
+ * i is the offset in this hunk, nr + i is the total bit
+ * offset.
+ */
+ b = calc_code_bit(nr + i, &p);
+
+ /*
+ * Data bits in the resultant code are checked by
+ * parity bits that are part of the bit number
+ * representation. Huh?
+ *
+ * <wikipedia href="http://en.wikipedia.org/wiki/Hamming_code">
+ * In other words, the parity bit at position 2^k
+ * checks bits in positions having bit k set in
+ * their binary representation. Conversely, for
+ * instance, bit 13, i.e. 1101(2), is checked by
+ * bits 1000(2) = 8, 0100(2)=4 and 0001(2) = 1.
+ * </wikipedia>
+ *
+ * Note that 'k' is the _code_ bit number. 'b' in
+ * our loop.
+ */
+ parity ^= b;
+ }
+
+ /* While the data buffer was treated as little endian, the
+ * return value is in host endian. */
+ return parity;
+}
+
+u32 ocfs2_hamming_encode_block(void *data, unsigned int blocksize)
+{
+ return ocfs2_hamming_encode(0, data, blocksize * 8, 0);
+}
+
+/*
+ * Like ocfs2_hamming_encode(), this can handle hunks. nr is the bit
+ * offset of the current hunk. If bit to be fixed is not part of the
+ * current hunk, this does nothing.
+ *
+ * If you only have one hunk, use ocfs2_hamming_fix_block().
+ */
+void ocfs2_hamming_fix(void *data, unsigned int d, unsigned int nr,
+ unsigned int fix)
+{
+ unsigned int i, b;
+
+ BUG_ON(!d);
+
+ /*
+ * If the bit to fix has an hweight of 1, it's a parity bit. One
+ * busted parity bit is its own error. Nothing to do here.
+ */
+ if (hweight32(fix) == 1)
+ return;
+
+ /*
+ * nr + d is the bit right past the data hunk we're looking at.
+ * If fix after that, nothing to do
+ */
+ if (fix >= calc_code_bit(nr + d, NULL))
+ return;
+
+ /*
+ * nr is the offset in the data hunk we're starting at. Let's
+ * start b at the offset in the code buffer. See hamming_encode()
+ * for a more detailed description of 'b'.
+ */
+ b = calc_code_bit(nr, NULL);
+ /* If the fix is before this hunk, nothing to do */
+ if (fix < b)
+ return;
+
+ for (i = 0; i < d; i++, b++)
+ {
+ /* Skip past parity bits */
+ while (hweight32(b) == 1)
+ b++;
+
+ /*
+ * i is the offset in this data hunk.
+ * nr + i is the offset in the total data buffer.
+ * b is the offset in the total code buffer.
+ *
+ * Thus, when b == fix, bit i in the current hunk needs
+ * fixing.
+ */
+ if (b == fix)
+ {
+ if (ocfs2_test_bit(i, data))
+ ocfs2_clear_bit(i, data);
+ else
+ ocfs2_set_bit(i, data);
+ break;
+ }
+ }
+}
+
+void ocfs2_hamming_fix_block(void *data, unsigned int blocksize,
+ unsigned int fix)
+{
+ ocfs2_hamming_fix(data, blocksize * 8, 0, fix);
+}
+
+/*
+ * This function generates check information for a block.
+ * data is the block to be checked. bc is a pointer to the
+ * ocfs2_block_check structure describing the crc32 and the ecc.
+ *
+ * bc should be a pointer inside data, as the function will
+ * take care of zeroing it before calculating the check information. If
+ * bc does not point inside data, the caller must make sure any inline
+ * ocfs2_block_check structures are zeroed.
+ *
+ * The data buffer must be in on-disk endian (little endian for ocfs2).
+ * bc will be filled with little-endian values and will be ready to go to
+ * disk.
+ */
+void ocfs2_block_check_compute(void *data, size_t blocksize,
+ struct ocfs2_block_check *bc)
+{
+ u32 crc;
+ u32 ecc;
+
+ memset(bc, 0, sizeof(struct ocfs2_block_check));
+
+ crc = crc32_le(~0, data, blocksize);
+ ecc = ocfs2_hamming_encode_block(data, blocksize);
+
+ /*
+ * No ecc'd ocfs2 structure is larger than 4K, so ecc will be no
+ * larger than 16 bits.
+ */
+ BUG_ON(ecc > USHORT_MAX);
+
+ bc->bc_crc32e = cpu_to_le32(crc);
+ bc->bc_ecc = cpu_to_le16((u16)ecc);
+}
+
+/*
+ * This function validates existing check information. Like _compute,
+ * the function will take care of zeroing bc before calculating check codes.
+ * If bc is not a pointer inside data, the caller must have zeroed any
+ * inline ocfs2_block_check structures.
+ *
+ * Again, the data passed in should be the on-disk endian.
+ */
+int ocfs2_block_check_validate(void *data, size_t blocksize,
+ struct ocfs2_block_check *bc)
+{
+ int rc = 0;
+ struct ocfs2_block_check check;
+ u32 crc, ecc;
+
+ check.bc_crc32e = le32_to_cpu(bc->bc_crc32e);
+ check.bc_ecc = le16_to_cpu(bc->bc_ecc);
+
+ memset(bc, 0, sizeof(struct ocfs2_block_check));
+
+ /* Fast path - if the crc32 validates, we're good to go */
+ crc = crc32_le(~0, data, blocksize);
+ if (crc == check.bc_crc32e)
+ goto out;
+
+ mlog(ML_ERROR,
+ "CRC32 failed: stored: %u, computed %u. Applying ECC.\n",
+ (unsigned int)check.bc_crc32e, (unsigned int)crc);
+
+ /* Ok, try ECC fixups */
+ ecc = ocfs2_hamming_encode_block(data, blocksize);
+ ocfs2_hamming_fix_block(data, blocksize, ecc ^ check.bc_ecc);
+
+ /* And check the crc32 again */
+ crc = crc32_le(~0, data, blocksize);
+ if (crc == check.bc_crc32e)
+ goto out;
+
+ mlog(ML_ERROR, "Fixed CRC32 failed: stored: %u, computed %u\n",
+ (unsigned int)check.bc_crc32e, (unsigned int)crc);
+
+ rc = -EIO;
+
+out:
+ bc->bc_crc32e = cpu_to_le32(check.bc_crc32e);
+ bc->bc_ecc = cpu_to_le16(check.bc_ecc);
+
+ return rc;
+}
+
+/*
+ * This function generates check information for a list of buffer_heads.
+ * bhs is the blocks to be checked. bc is a pointer to the
+ * ocfs2_block_check structure describing the crc32 and the ecc.
+ *
+ * bc should be a pointer inside data, as the function will
+ * take care of zeroing it before calculating the check information. If
+ * bc does not point inside data, the caller must make sure any inline
+ * ocfs2_block_check structures are zeroed.
+ *
+ * The data buffer must be in on-disk endian (little endian for ocfs2).
+ * bc will be filled with little-endian values and will be ready to go to
+ * disk.
+ */
+void ocfs2_block_check_compute_bhs(struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc)
+{
+ int i;
+ u32 crc, ecc;
+
+ BUG_ON(nr < 0);
+
+ if (!nr)
+ return;
+
+ memset(bc, 0, sizeof(struct ocfs2_block_check));
+
+ for (i = 0, crc = ~0, ecc = 0; i < nr; i++) {
+ crc = crc32_le(crc, bhs[i]->b_data, bhs[i]->b_size);
+ /*
+ * The number of bits in a buffer is obviously b_size*8.
+ * The offset of this buffer is b_size*i, so the bit offset
+ * of this buffer is b_size*8*i.
+ */
+ ecc = (u16)ocfs2_hamming_encode(ecc, bhs[i]->b_data,
+ bhs[i]->b_size * 8,
+ bhs[i]->b_size * 8 * i);
+ }
+
+ /*
+ * No ecc'd ocfs2 structure is larger than 4K, so ecc will be no
+ * larger than 16 bits.
+ */
+ BUG_ON(ecc > USHORT_MAX);
+
+ bc->bc_crc32e = cpu_to_le32(crc);
+ bc->bc_ecc = cpu_to_le16((u16)ecc);
+}
+
+/*
+ * This function validates existing check information on a list of
+ * buffer_heads. Like _compute_bhs, the function will take care of
+ * zeroing bc before calculating check codes. If bc is not a pointer
+ * inside data, the caller must have zeroed any inline
+ * ocfs2_block_check structures.
+ *
+ * Again, the data passed in should be the on-disk endian.
+ */
+int ocfs2_block_check_validate_bhs(struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc)
+{
+ int i, rc = 0;
+ struct ocfs2_block_check check;
+ u32 crc, ecc, fix;
+
+ BUG_ON(nr < 0);
+
+ if (!nr)
+ return 0;
+
+ check.bc_crc32e = le32_to_cpu(bc->bc_crc32e);
+ check.bc_ecc = le16_to_cpu(bc->bc_ecc);
+
+ memset(bc, 0, sizeof(struct ocfs2_block_check));
+
+ /* Fast path - if the crc32 validates, we're good to go */
+ for (i = 0, crc = ~0; i < nr; i++)
+ crc = crc32_le(crc, bhs[i]->b_data, bhs[i]->b_size);
+ if (crc == check.bc_crc32e)
+ goto out;
+
+ mlog(ML_ERROR,
+ "CRC32 failed: stored: %u, computed %u. Applying ECC.\n",
+ (unsigned int)check.bc_crc32e, (unsigned int)crc);
+
+ /* Ok, try ECC fixups */
+ for (i = 0, ecc = 0; i < nr; i++) {
+ /*
+ * The number of bits in a buffer is obviously b_size*8.
+ * The offset of this buffer is b_size*i, so the bit offset
+ * of this buffer is b_size*8*i.
+ */
+ ecc = (u16)ocfs2_hamming_encode(ecc, bhs[i]->b_data,
+ bhs[i]->b_size * 8,
+ bhs[i]->b_size * 8 * i);
+ }
+ fix = ecc ^ check.bc_ecc;
+ for (i = 0; i < nr; i++) {
+ /*
+ * Try the fix against each buffer. It will only affect
+ * one of them.
+ */
+ ocfs2_hamming_fix(bhs[i]->b_data, bhs[i]->b_size * 8,
+ bhs[i]->b_size * 8 * i, fix);
+ }
+
+ /* And check the crc32 again */
+ for (i = 0, crc = ~0; i < nr; i++)
+ crc = crc32_le(crc, bhs[i]->b_data, bhs[i]->b_size);
+ if (crc == check.bc_crc32e)
+ goto out;
+
+ mlog(ML_ERROR, "Fixed CRC32 failed: stored: %u, computed %u\n",
+ (unsigned int)check.bc_crc32e, (unsigned int)crc);
+
+ rc = -EIO;
+
+out:
+ bc->bc_crc32e = cpu_to_le32(check.bc_crc32e);
+ bc->bc_ecc = cpu_to_le16(check.bc_ecc);
+
+ return rc;
+}
+
+/*
+ * These are the main API. They check the superblock flag before
+ * calling the underlying operations.
+ *
+ * They expect the buffer(s) to be in disk format.
+ */
+void ocfs2_compute_meta_ecc(struct super_block *sb, void *data,
+ struct ocfs2_block_check *bc)
+{
+ if (ocfs2_meta_ecc(OCFS2_SB(sb)))
+ ocfs2_block_check_compute(data, sb->s_blocksize, bc);
+}
+
+int ocfs2_validate_meta_ecc(struct super_block *sb, void *data,
+ struct ocfs2_block_check *bc)
+{
+ int rc = 0;
+
+ if (ocfs2_meta_ecc(OCFS2_SB(sb)))
+ rc = ocfs2_block_check_validate(data, sb->s_blocksize, bc);
+
+ return rc;
+}
+
+void ocfs2_compute_meta_ecc_bhs(struct super_block *sb,
+ struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc)
+{
+ if (ocfs2_meta_ecc(OCFS2_SB(sb)))
+ ocfs2_block_check_compute_bhs(bhs, nr, bc);
+}
+
+int ocfs2_validate_meta_ecc_bhs(struct super_block *sb,
+ struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc)
+{
+ int rc = 0;
+
+ if (ocfs2_meta_ecc(OCFS2_SB(sb)))
+ rc = ocfs2_block_check_validate_bhs(bhs, nr, bc);
+
+ return rc;
+}
+
diff --git a/fs/ocfs2/blockcheck.h b/fs/ocfs2/blockcheck.h
new file mode 100644
index 000000000000..70ec3feda32f
--- /dev/null
+++ b/fs/ocfs2/blockcheck.h
@@ -0,0 +1,82 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * blockcheck.h
+ *
+ * Checksum and ECC codes for the OCFS2 userspace library.
+ *
+ * Copyright (C) 2004, 2008 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License, version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef OCFS2_BLOCKCHECK_H
+#define OCFS2_BLOCKCHECK_H
+
+
+/* High level block API */
+void ocfs2_compute_meta_ecc(struct super_block *sb, void *data,
+ struct ocfs2_block_check *bc);
+int ocfs2_validate_meta_ecc(struct super_block *sb, void *data,
+ struct ocfs2_block_check *bc);
+void ocfs2_compute_meta_ecc_bhs(struct super_block *sb,
+ struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc);
+int ocfs2_validate_meta_ecc_bhs(struct super_block *sb,
+ struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc);
+
+/* Lower level API */
+void ocfs2_block_check_compute(void *data, size_t blocksize,
+ struct ocfs2_block_check *bc);
+int ocfs2_block_check_validate(void *data, size_t blocksize,
+ struct ocfs2_block_check *bc);
+void ocfs2_block_check_compute_bhs(struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc);
+int ocfs2_block_check_validate_bhs(struct buffer_head **bhs, int nr,
+ struct ocfs2_block_check *bc);
+
+/*
+ * Hamming code functions
+ */
+
+/*
+ * Encoding hamming code parity bits for a buffer.
+ *
+ * This is the low level encoder function. It can be called across
+ * multiple hunks just like the crc32 code. 'd' is the number of bits
+ * _in_this_hunk_. nr is the bit offset of this hunk. So, if you had
+ * two 512B buffers, you would do it like so:
+ *
+ * parity = ocfs2_hamming_encode(0, buf1, 512 * 8, 0);
+ * parity = ocfs2_hamming_encode(parity, buf2, 512 * 8, 512 * 8);
+ *
+ * If you just have one buffer, use ocfs2_hamming_encode_block().
+ */
+u32 ocfs2_hamming_encode(u32 parity, void *data, unsigned int d,
+ unsigned int nr);
+/*
+ * Fix a buffer with a bit error. The 'fix' is the original parity
+ * xor'd with the parity calculated now.
+ *
+ * Like ocfs2_hamming_encode(), this can handle hunks. nr is the bit
+ * offset of the current hunk. If bit to be fixed is not part of the
+ * current hunk, this does nothing.
+ *
+ * If you only have one buffer, use ocfs2_hamming_fix_block().
+ */
+void ocfs2_hamming_fix(void *data, unsigned int d, unsigned int nr,
+ unsigned int fix);
+
+/* Convenience wrappers for a single buffer of data */
+extern u32 ocfs2_hamming_encode_block(void *data, unsigned int blocksize);
+extern void ocfs2_hamming_fix_block(void *data, unsigned int blocksize,
+ unsigned int fix);
+#endif
diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c
index 3a178ec48d7c..15c8e6deee2e 100644
--- a/fs/ocfs2/buffer_head_io.c
+++ b/fs/ocfs2/buffer_head_io.c
@@ -39,6 +39,18 @@
#include "buffer_head_io.h"
+/*
+ * Bits on bh->b_state used by ocfs2.
+ *
+ * These MUST be after the JBD2 bits. Hence, we use BH_JBDPrivateStart.
+ */
+enum ocfs2_state_bits {
+ BH_NeedsValidate = BH_JBDPrivateStart,
+};
+
+/* Expand the magic b_state functions */
+BUFFER_FNS(NeedsValidate, needs_validate);
+
int ocfs2_write_block(struct ocfs2_super *osb, struct buffer_head *bh,
struct inode *inode)
{
@@ -166,7 +178,9 @@ bail:
}
int ocfs2_read_blocks(struct inode *inode, u64 block, int nr,
- struct buffer_head *bhs[], int flags)
+ struct buffer_head *bhs[], int flags,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh))
{
int status = 0;
int i, ignore_cache = 0;
@@ -298,6 +312,8 @@ int ocfs2_read_blocks(struct inode *inode, u64 block, int nr,
clear_buffer_uptodate(bh);
get_bh(bh); /* for end_buffer_read_sync() */
+ if (validate)
+ set_buffer_needs_validate(bh);
bh->b_end_io = end_buffer_read_sync;
submit_bh(READ, bh);
continue;
@@ -328,6 +344,20 @@ int ocfs2_read_blocks(struct inode *inode, u64 block, int nr,
bhs[i] = NULL;
continue;
}
+
+ if (buffer_needs_validate(bh)) {
+ /* We never set NeedsValidate if the
+ * buffer was held by the journal, so
+ * that better not have changed */
+ BUG_ON(buffer_jbd(bh));
+ clear_buffer_needs_validate(bh);
+ status = validate(inode->i_sb, bh);
+ if (status) {
+ put_bh(bh);
+ bhs[i] = NULL;
+ continue;
+ }
+ }
}
/* Always set the buffer in the cache, even if it was
diff --git a/fs/ocfs2/buffer_head_io.h b/fs/ocfs2/buffer_head_io.h
index 75e1dcb1ade7..c75d682dadd8 100644
--- a/fs/ocfs2/buffer_head_io.h
+++ b/fs/ocfs2/buffer_head_io.h
@@ -31,21 +31,24 @@
void ocfs2_end_buffer_io_sync(struct buffer_head *bh,
int uptodate);
-static inline int ocfs2_read_block(struct inode *inode,
- u64 off,
- struct buffer_head **bh);
-
int ocfs2_write_block(struct ocfs2_super *osb,
struct buffer_head *bh,
struct inode *inode);
-int ocfs2_read_blocks(struct inode *inode,
- u64 block,
- int nr,
- struct buffer_head *bhs[],
- int flags);
int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
unsigned int nr, struct buffer_head *bhs[]);
+/*
+ * If not NULL, validate() will be called on a buffer that is freshly
+ * read from disk. It will not be called if the buffer was in cache.
+ * Note that if validate() is being used for this buffer, it needs to
+ * be set even for a READAHEAD call, as it marks the buffer for later
+ * validation.
+ */
+int ocfs2_read_blocks(struct inode *inode, u64 block, int nr,
+ struct buffer_head *bhs[], int flags,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh));
+
int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
struct buffer_head *bh);
@@ -53,7 +56,9 @@ int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
#define OCFS2_BH_READAHEAD 8
static inline int ocfs2_read_block(struct inode *inode, u64 off,
- struct buffer_head **bh)
+ struct buffer_head **bh,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh))
{
int status = 0;
@@ -63,7 +68,7 @@ static inline int ocfs2_read_block(struct inode *inode, u64 off,
goto bail;
}
- status = ocfs2_read_blocks(inode, off, 1, bh, 0);
+ status = ocfs2_read_blocks(inode, off, 1, bh, 0, validate);
bail:
return status;
diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index d8a0cb92cef6..96df5416993e 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -110,6 +110,7 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = {
define_mask(QUORUM),
define_mask(EXPORT),
define_mask(XATTR),
+ define_mask(QUOTA),
define_mask(ERROR),
define_mask(NOTICE),
define_mask(KTHREAD),
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 57670c680471..7e72a81bc2d4 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -113,6 +113,7 @@
#define ML_QUORUM 0x0000000008000000ULL /* net connection quorum */
#define ML_EXPORT 0x0000000010000000ULL /* ocfs2 export operations */
#define ML_XATTR 0x0000000020000000ULL /* ocfs2 extended attributes */
+#define ML_QUOTA 0x0000000040000000ULL /* ocfs2 quota operations */
/* bits that are infrequently given and frequently matched in the high word */
#define ML_ERROR 0x0000000100000000ULL /* sent to KERN_ERR */
#define ML_NOTICE 0x0000000200000000ULL /* setn to KERN_NOTICE */
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 026e6eb85187..f2c4098cf337 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -40,6 +40,7 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/highmem.h>
+#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_NAMEI
#include <cluster/masklog.h>
@@ -47,6 +48,7 @@
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dir.h"
#include "dlmglue.h"
#include "extent_map.h"
@@ -82,47 +84,72 @@ static int ocfs2_do_extend_dir(struct super_block *sb,
struct ocfs2_alloc_context *meta_ac,
struct buffer_head **new_bh);
-static struct buffer_head *ocfs2_bread(struct inode *inode,
- int block, int *err, int reada)
+/*
+ * These are distinct checks because future versions of the file system will
+ * want to have a trailing dirent structure independent of indexing.
+ */
+static int ocfs2_dir_has_trailer(struct inode *dir)
{
- struct buffer_head *bh = NULL;
- int tmperr;
- u64 p_blkno;
- int readflags = 0;
+ if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
+ return 0;
- if (reada)
- readflags |= OCFS2_BH_READAHEAD;
+ return ocfs2_meta_ecc(OCFS2_SB(dir->i_sb));
+}
- if (((u64)block << inode->i_sb->s_blocksize_bits) >=
- i_size_read(inode)) {
- BUG_ON(!reada);
- return NULL;
- }
+static int ocfs2_supports_dir_trailer(struct ocfs2_super *osb)
+{
+ return ocfs2_meta_ecc(osb);
+}
- down_read(&OCFS2_I(inode)->ip_alloc_sem);
- tmperr = ocfs2_extent_map_get_blocks(inode, block, &p_blkno, NULL,
- NULL);
- up_read(&OCFS2_I(inode)->ip_alloc_sem);
- if (tmperr < 0) {
- mlog_errno(tmperr);
- goto fail;
- }
+static inline unsigned int ocfs2_dir_trailer_blk_off(struct super_block *sb)
+{
+ return sb->s_blocksize - sizeof(struct ocfs2_dir_block_trailer);
+}
- tmperr = ocfs2_read_blocks(inode, p_blkno, 1, &bh, readflags);
- if (tmperr < 0)
- goto fail;
+#define ocfs2_trailer_from_bh(_bh, _sb) ((struct ocfs2_dir_block_trailer *) ((_bh)->b_data + ocfs2_dir_trailer_blk_off((_sb))))
- tmperr = 0;
+/* XXX ocfs2_block_dqtrailer() is similar but not quite - can we make
+ * them more consistent? */
+struct ocfs2_dir_block_trailer *ocfs2_dir_trailer_from_size(int blocksize,
+ void *data)
+{
+ char *p = data;
- *err = 0;
- return bh;
+ p += blocksize - sizeof(struct ocfs2_dir_block_trailer);
+ return (struct ocfs2_dir_block_trailer *)p;
+}
-fail:
- brelse(bh);
- bh = NULL;
+/*
+ * XXX: This is executed once on every dirent. We should consider optimizing
+ * it.
+ */
+static int ocfs2_skip_dir_trailer(struct inode *dir,
+ struct ocfs2_dir_entry *de,
+ unsigned long offset,
+ unsigned long blklen)
+{
+ unsigned long toff = blklen - sizeof(struct ocfs2_dir_block_trailer);
- *err = -EIO;
- return NULL;
+ if (!ocfs2_dir_has_trailer(dir))
+ return 0;
+
+ if (offset != toff)
+ return 0;
+
+ return 1;
+}
+
+static void ocfs2_init_dir_trailer(struct inode *inode,
+ struct buffer_head *bh)
+{
+ struct ocfs2_dir_block_trailer *trailer;
+
+ trailer = ocfs2_trailer_from_bh(bh, inode->i_sb);
+ strcpy(trailer->db_signature, OCFS2_DIR_TRAILER_SIGNATURE);
+ trailer->db_compat_rec_len =
+ cpu_to_le16(sizeof(struct ocfs2_dir_block_trailer));
+ trailer->db_parent_dinode = cpu_to_le64(OCFS2_I(inode)->ip_blkno);
+ trailer->db_blkno = cpu_to_le64(bh->b_blocknr);
}
/*
@@ -231,7 +258,7 @@ static struct buffer_head *ocfs2_find_entry_id(const char *name,
struct ocfs2_dinode *di;
struct ocfs2_inline_data *data;
- ret = ocfs2_read_block(dir, OCFS2_I(dir)->ip_blkno, &di_bh);
+ ret = ocfs2_read_inode_block(dir, &di_bh);
if (ret) {
mlog_errno(ret);
goto out;
@@ -250,6 +277,108 @@ out:
return NULL;
}
+static int ocfs2_validate_dir_block(struct super_block *sb,
+ struct buffer_head *bh)
+{
+ int rc;
+ struct ocfs2_dir_block_trailer *trailer =
+ ocfs2_trailer_from_bh(bh, sb);
+
+
+ /*
+ * We don't validate dirents here, that's handled
+ * in-place when the code walks them.
+ */
+ mlog(0, "Validating dirblock %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ *
+ * Note that we are safe to call this even if the directory
+ * doesn't have a trailer. Filesystems without metaecc will do
+ * nothing, and filesystems with it will have one.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &trailer->db_check);
+ if (rc)
+ mlog(ML_ERROR, "Checksum failed for dinode %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ return rc;
+}
+
+/*
+ * This function forces all errors to -EIO for consistency with its
+ * predecessor, ocfs2_bread(). We haven't audited what returning the
+ * real error codes would do to callers. We log the real codes with
+ * mlog_errno() before we squash them.
+ */
+static int ocfs2_read_dir_block(struct inode *inode, u64 v_block,
+ struct buffer_head **bh, int flags)
+{
+ int rc = 0;
+ struct buffer_head *tmp = *bh;
+ struct ocfs2_dir_block_trailer *trailer;
+
+ rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, flags,
+ ocfs2_validate_dir_block);
+ if (rc) {
+ mlog_errno(rc);
+ goto out;
+ }
+
+ /*
+ * We check the trailer here rather than in
+ * ocfs2_validate_dir_block() because that function doesn't have
+ * the inode to test.
+ */
+ if (!(flags & OCFS2_BH_READAHEAD) &&
+ ocfs2_dir_has_trailer(inode)) {
+ trailer = ocfs2_trailer_from_bh(tmp, inode->i_sb);
+ if (!OCFS2_IS_VALID_DIR_TRAILER(trailer)) {
+ rc = -EINVAL;
+ ocfs2_error(inode->i_sb,
+ "Invalid dirblock #%llu: "
+ "signature = %.*s\n",
+ (unsigned long long)tmp->b_blocknr, 7,
+ trailer->db_signature);
+ goto out;
+ }
+ if (le64_to_cpu(trailer->db_blkno) != tmp->b_blocknr) {
+ rc = -EINVAL;
+ ocfs2_error(inode->i_sb,
+ "Directory block #%llu has an invalid "
+ "db_blkno of %llu",
+ (unsigned long long)tmp->b_blocknr,
+ (unsigned long long)le64_to_cpu(trailer->db_blkno));
+ goto out;
+ }
+ if (le64_to_cpu(trailer->db_parent_dinode) !=
+ OCFS2_I(inode)->ip_blkno) {
+ rc = -EINVAL;
+ ocfs2_error(inode->i_sb,
+ "Directory block #%llu on dinode "
+ "#%llu has an invalid parent_dinode "
+ "of %llu",
+ (unsigned long long)tmp->b_blocknr,
+ (unsigned long long)OCFS2_I(inode)->ip_blkno,
+ (unsigned long long)le64_to_cpu(trailer->db_blkno));
+ goto out;
+ }
+ }
+
+ /* If ocfs2_read_virt_blocks() got us a new bh, pass it up. */
+ if (!*bh)
+ *bh = tmp;
+
+out:
+ return rc ? -EIO : 0;
+}
+
static struct buffer_head *ocfs2_find_entry_el(const char *name, int namelen,
struct inode *dir,
struct ocfs2_dir_entry **res_dir)
@@ -296,15 +425,17 @@ restart:
}
num++;
- bh = ocfs2_bread(dir, b++, &err, 1);
+ bh = NULL;
+ err = ocfs2_read_dir_block(dir, b++, &bh,
+ OCFS2_BH_READAHEAD);
bh_use[ra_max] = bh;
}
}
if ((bh = bh_use[ra_ptr++]) == NULL)
goto next;
- if (ocfs2_read_block(dir, block, &bh)) {
+ if (ocfs2_read_dir_block(dir, block, &bh, 0)) {
/* read error, skip block & hope for the best.
- * ocfs2_read_block() has released the bh. */
+ * ocfs2_read_dir_block() has released the bh. */
ocfs2_error(dir->i_sb, "reading directory %llu, "
"offset %lu\n",
(unsigned long long)OCFS2_I(dir)->ip_blkno,
@@ -381,14 +512,18 @@ int ocfs2_update_entry(struct inode *dir, handle_t *handle,
struct inode *new_entry_inode)
{
int ret;
+ ocfs2_journal_access_func access = ocfs2_journal_access_db;
/*
* The same code works fine for both inline-data and extent
- * based directories, so no need to split this up.
+ * based directories, so no need to split this up. The only
+ * difference is the journal_access function.
*/
- ret = ocfs2_journal_access(handle, dir, de_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
+ access = ocfs2_journal_access_di;
+
+ ret = access(handle, dir, de_bh, OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -410,9 +545,13 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir,
{
struct ocfs2_dir_entry *de, *pde;
int i, status = -ENOENT;
+ ocfs2_journal_access_func access = ocfs2_journal_access_db;
mlog_entry("(0x%p, 0x%p, 0x%p, 0x%p)\n", handle, dir, de_del, bh);
+ if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
+ access = ocfs2_journal_access_di;
+
i = 0;
pde = NULL;
de = (struct ocfs2_dir_entry *) first_de;
@@ -423,8 +562,8 @@ static int __ocfs2_delete_entry(handle_t *handle, struct inode *dir,
goto bail;
}
if (de == de_del) {
- status = ocfs2_journal_access(handle, dir, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = access(handle, dir, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
status = -EIO;
mlog_errno(status);
@@ -458,7 +597,7 @@ static inline int ocfs2_delete_entry_id(handle_t *handle,
struct ocfs2_dinode *di;
struct ocfs2_inline_data *data;
- ret = ocfs2_read_block(dir, OCFS2_I(dir)->ip_blkno, &di_bh);
+ ret = ocfs2_read_inode_block(dir, &di_bh);
if (ret) {
mlog_errno(ret);
goto out;
@@ -576,6 +715,16 @@ int __ocfs2_add_entry(handle_t *handle,
goto bail;
}
+ /* We're guaranteed that we should have space, so we
+ * can't possibly have hit the trailer...right? */
+ mlog_bug_on_msg(ocfs2_skip_dir_trailer(dir, de, offset, size),
+ "Hit dir trailer trying to insert %.*s "
+ "(namelen %d) into directory %llu. "
+ "offset is %lu, trailer offset is %d\n",
+ namelen, name, namelen,
+ (unsigned long long)parent_fe_bh->b_blocknr,
+ offset, ocfs2_dir_trailer_blk_off(dir->i_sb));
+
if (ocfs2_dirent_would_fit(de, rec_len)) {
dir->i_mtime = dir->i_ctime = CURRENT_TIME;
retval = ocfs2_mark_inode_dirty(handle, dir, parent_fe_bh);
@@ -584,8 +733,14 @@ int __ocfs2_add_entry(handle_t *handle,
goto bail;
}
- status = ocfs2_journal_access(handle, dir, insert_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ if (insert_bh == parent_fe_bh)
+ status = ocfs2_journal_access_di(handle, dir,
+ insert_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ else
+ status = ocfs2_journal_access_db(handle, dir,
+ insert_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
/* By now the buffer is marked for journaling */
offset += le16_to_cpu(de->rec_len);
if (le64_to_cpu(de->inode)) {
@@ -611,6 +766,7 @@ int __ocfs2_add_entry(handle_t *handle,
retval = 0;
goto bail;
}
+
offset += le16_to_cpu(de->rec_len);
de = (struct ocfs2_dir_entry *) ((char *) de + le16_to_cpu(de->rec_len));
}
@@ -636,7 +792,7 @@ static int ocfs2_dir_foreach_blk_id(struct inode *inode,
struct ocfs2_inline_data *data;
struct ocfs2_dir_entry *de;
- ret = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &di_bh);
+ ret = ocfs2_read_inode_block(inode, &di_bh);
if (ret) {
mlog(ML_ERROR, "Unable to read inode block for dir %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno);
@@ -724,7 +880,6 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
int i, stored;
struct buffer_head * bh, * tmp;
struct ocfs2_dir_entry * de;
- int err;
struct super_block * sb = inode->i_sb;
unsigned int ra_sectors = 16;
@@ -735,12 +890,8 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
while (!error && !stored && *f_pos < i_size_read(inode)) {
blk = (*f_pos) >> sb->s_blocksize_bits;
- bh = ocfs2_bread(inode, blk, &err, 0);
- if (!bh) {
- mlog(ML_ERROR,
- "directory #%llu contains a hole at offset %lld\n",
- (unsigned long long)OCFS2_I(inode)->ip_blkno,
- *f_pos);
+ if (ocfs2_read_dir_block(inode, blk, &bh, 0)) {
+ /* Skip the corrupt dirblock and keep trying */
*f_pos += sb->s_blocksize - offset;
continue;
}
@@ -754,8 +905,10 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
|| (((last_ra_blk - blk) << 9) <= (ra_sectors / 2))) {
for (i = ra_sectors >> (sb->s_blocksize_bits - 9);
i > 0; i--) {
- tmp = ocfs2_bread(inode, ++blk, &err, 1);
- brelse(tmp);
+ tmp = NULL;
+ if (!ocfs2_read_dir_block(inode, ++blk, &tmp,
+ OCFS2_BH_READAHEAD))
+ brelse(tmp);
}
last_ra_blk = blk;
ra_sectors = 8;
@@ -828,6 +981,7 @@ revalidate:
}
offset = 0;
brelse(bh);
+ bh = NULL;
}
stored = 0;
@@ -1050,9 +1204,15 @@ int ocfs2_empty_dir(struct inode *inode)
return !priv.seen_other;
}
-static void ocfs2_fill_initial_dirents(struct inode *inode,
- struct inode *parent,
- char *start, unsigned int size)
+/*
+ * Fills "." and ".." dirents in a new directory block. Returns dirent for
+ * "..", which might be used during creation of a directory with a trailing
+ * header. It is otherwise safe to ignore the return code.
+ */
+static struct ocfs2_dir_entry *ocfs2_fill_initial_dirents(struct inode *inode,
+ struct inode *parent,
+ char *start,
+ unsigned int size)
{
struct ocfs2_dir_entry *de = (struct ocfs2_dir_entry *)start;
@@ -1069,6 +1229,8 @@ static void ocfs2_fill_initial_dirents(struct inode *inode,
de->name_len = 2;
strcpy(de->name, "..");
ocfs2_set_de_type(de, S_IFDIR);
+
+ return de;
}
/*
@@ -1086,8 +1248,8 @@ static int ocfs2_fill_new_dir_id(struct ocfs2_super *osb,
struct ocfs2_inline_data *data = &di->id2.i_data;
unsigned int size = le16_to_cpu(data->id_count);
- ret = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -1121,10 +1283,15 @@ static int ocfs2_fill_new_dir_el(struct ocfs2_super *osb,
struct ocfs2_alloc_context *data_ac)
{
int status;
+ unsigned int size = osb->sb->s_blocksize;
struct buffer_head *new_bh = NULL;
+ struct ocfs2_dir_entry *de;
mlog_entry_void();
+ if (ocfs2_supports_dir_trailer(osb))
+ size = ocfs2_dir_trailer_blk_off(parent->i_sb);
+
status = ocfs2_do_extend_dir(osb->sb, handle, inode, fe_bh,
data_ac, NULL, &new_bh);
if (status < 0) {
@@ -1134,16 +1301,17 @@ static int ocfs2_fill_new_dir_el(struct ocfs2_super *osb,
ocfs2_set_new_buffer_uptodate(inode, new_bh);
- status = ocfs2_journal_access(handle, inode, new_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ status = ocfs2_journal_access_db(handle, inode, new_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto bail;
}
memset(new_bh->b_data, 0, osb->sb->s_blocksize);
- ocfs2_fill_initial_dirents(inode, parent, new_bh->b_data,
- osb->sb->s_blocksize);
+ de = ocfs2_fill_initial_dirents(inode, parent, new_bh->b_data, size);
+ if (ocfs2_supports_dir_trailer(osb))
+ ocfs2_init_dir_trailer(inode, new_bh);
status = ocfs2_journal_dirty(handle, new_bh);
if (status < 0) {
@@ -1184,13 +1352,27 @@ int ocfs2_fill_new_dir(struct ocfs2_super *osb,
data_ac);
}
+/*
+ * Expand rec_len of the rightmost dirent in a directory block so that it
+ * contains the end of our valid space for dirents. We do this during
+ * expansion from an inline directory to one with extents. The first dir block
+ * in that case is taken from the inline data portion of the inode block.
+ *
+ * We add the dir trailer if this filesystem wants it.
+ */
static void ocfs2_expand_last_dirent(char *start, unsigned int old_size,
- unsigned int new_size)
+ struct super_block *sb)
{
struct ocfs2_dir_entry *de;
struct ocfs2_dir_entry *prev_de;
char *de_buf, *limit;
- unsigned int bytes = new_size - old_size;
+ unsigned int new_size = sb->s_blocksize;
+ unsigned int bytes;
+
+ if (ocfs2_supports_dir_trailer(OCFS2_SB(sb)))
+ new_size = ocfs2_dir_trailer_blk_off(sb);
+
+ bytes = new_size - old_size;
limit = start + old_size;
de_buf = start;
@@ -1216,9 +1398,9 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
unsigned int blocks_wanted,
struct buffer_head **first_block_bh)
{
- int ret, credits = OCFS2_INLINE_TO_EXTENTS_CREDITS;
u32 alloc, bit_off, len;
struct super_block *sb = dir->i_sb;
+ int ret, credits = ocfs2_inline_to_extents_credits(sb);
u64 blkno, bytes = blocks_wanted << sb->s_blocksize_bits;
struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
struct ocfs2_inode_info *oi = OCFS2_I(dir);
@@ -1227,6 +1409,7 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
handle_t *handle;
struct ocfs2_extent_tree et;
+ int did_quota = 0;
ocfs2_init_dinode_extent_tree(&et, dir, di_bh);
@@ -1264,6 +1447,12 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
goto out_sem;
}
+ if (vfs_dq_alloc_space_nodirty(dir,
+ ocfs2_clusters_to_bytes(osb->sb, alloc))) {
+ ret = -EDQUOT;
+ goto out_commit;
+ }
+ did_quota = 1;
/*
* Try to claim as many clusters as the bitmap can give though
* if we only get one now, that's enough to continue. The rest
@@ -1290,8 +1479,8 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
ocfs2_set_new_buffer_uptodate(dir, dirdata_bh);
- ret = ocfs2_journal_access(handle, dir, dirdata_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_journal_access_db(handle, dir, dirdata_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -1300,8 +1489,9 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
memcpy(dirdata_bh->b_data, di->id2.i_data.id_data, i_size_read(dir));
memset(dirdata_bh->b_data + i_size_read(dir), 0,
sb->s_blocksize - i_size_read(dir));
- ocfs2_expand_last_dirent(dirdata_bh->b_data, i_size_read(dir),
- sb->s_blocksize);
+ ocfs2_expand_last_dirent(dirdata_bh->b_data, i_size_read(dir), sb);
+ if (ocfs2_supports_dir_trailer(osb))
+ ocfs2_init_dir_trailer(dir, dirdata_bh);
ret = ocfs2_journal_dirty(handle, dirdata_bh);
if (ret) {
@@ -1317,8 +1507,8 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
* We let the later dirent insert modify c/mtime - to the user
* the data hasn't changed.
*/
- ret = ocfs2_journal_access(handle, dir, di_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_journal_access_di(handle, dir, di_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -1386,6 +1576,9 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
dirdata_bh = NULL;
out_commit:
+ if (ret < 0 && did_quota)
+ vfs_dq_free_space_nodirty(dir,
+ ocfs2_clusters_to_bytes(osb->sb, 2));
ocfs2_commit_trans(osb, handle);
out_sem:
@@ -1410,7 +1603,7 @@ static int ocfs2_do_extend_dir(struct super_block *sb,
struct buffer_head **new_bh)
{
int status;
- int extend;
+ int extend, did_quota = 0;
u64 p_blkno, v_blkno;
spin_lock(&OCFS2_I(dir)->ip_lock);
@@ -1420,6 +1613,13 @@ static int ocfs2_do_extend_dir(struct super_block *sb,
if (extend) {
u32 offset = OCFS2_I(dir)->ip_clusters;
+ if (vfs_dq_alloc_space_nodirty(dir,
+ ocfs2_clusters_to_bytes(sb, 1))) {
+ status = -EDQUOT;
+ goto bail;
+ }
+ did_quota = 1;
+
status = ocfs2_add_inode_data(OCFS2_SB(sb), dir, &offset,
1, 0, parent_fe_bh, handle,
data_ac, meta_ac, NULL);
@@ -1445,6 +1645,8 @@ static int ocfs2_do_extend_dir(struct super_block *sb,
}
status = 0;
bail:
+ if (did_quota && status < 0)
+ vfs_dq_free_space_nodirty(dir, ocfs2_clusters_to_bytes(sb, 1));
mlog_exit(status);
return status;
}
@@ -1569,16 +1771,22 @@ do_extend:
ocfs2_set_new_buffer_uptodate(dir, new_bh);
- status = ocfs2_journal_access(handle, dir, new_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ status = ocfs2_journal_access_db(handle, dir, new_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto bail;
}
memset(new_bh->b_data, 0, sb->s_blocksize);
+
de = (struct ocfs2_dir_entry *) new_bh->b_data;
de->inode = 0;
- de->rec_len = cpu_to_le16(sb->s_blocksize);
+ if (ocfs2_dir_has_trailer(dir)) {
+ de->rec_len = cpu_to_le16(ocfs2_dir_trailer_blk_off(sb));
+ ocfs2_init_dir_trailer(dir, new_bh);
+ } else {
+ de->rec_len = cpu_to_le16(sb->s_blocksize);
+ }
status = ocfs2_journal_dirty(handle, new_bh);
if (status < 0) {
mlog_errno(status);
@@ -1620,11 +1828,21 @@ static int ocfs2_find_dir_space_id(struct inode *dir, struct buffer_head *di_bh,
unsigned int *blocks_wanted)
{
int ret;
+ struct super_block *sb = dir->i_sb;
struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
struct ocfs2_dir_entry *de, *last_de = NULL;
char *de_buf, *limit;
unsigned long offset = 0;
- unsigned int rec_len, new_rec_len;
+ unsigned int rec_len, new_rec_len, free_space = dir->i_sb->s_blocksize;
+
+ /*
+ * This calculates how many free bytes we'd have in block zero, should
+ * this function force expansion to an extent tree.
+ */
+ if (ocfs2_supports_dir_trailer(OCFS2_SB(sb)))
+ free_space = ocfs2_dir_trailer_blk_off(sb) - i_size_read(dir);
+ else
+ free_space = dir->i_sb->s_blocksize - i_size_read(dir);
de_buf = di->id2.i_data.id_data;
limit = de_buf + i_size_read(dir);
@@ -1641,6 +1859,11 @@ static int ocfs2_find_dir_space_id(struct inode *dir, struct buffer_head *di_bh,
ret = -EEXIST;
goto out;
}
+ /*
+ * No need to check for a trailing dirent record here as
+ * they're not used for inline dirs.
+ */
+
if (ocfs2_dirent_would_fit(de, rec_len)) {
/* Ok, we found a spot. Return this bh and let
* the caller actually fill it in. */
@@ -1661,7 +1884,7 @@ static int ocfs2_find_dir_space_id(struct inode *dir, struct buffer_head *di_bh,
* dirent can be found.
*/
*blocks_wanted = 1;
- new_rec_len = le16_to_cpu(last_de->rec_len) + (dir->i_sb->s_blocksize - i_size_read(dir));
+ new_rec_len = le16_to_cpu(last_de->rec_len) + free_space;
if (new_rec_len < (rec_len + OCFS2_DIR_REC_LEN(last_de->name_len)))
*blocks_wanted = 2;
@@ -1679,9 +1902,10 @@ static int ocfs2_find_dir_space_el(struct inode *dir, const char *name,
struct ocfs2_dir_entry *de;
struct super_block *sb = dir->i_sb;
int status;
+ int blocksize = dir->i_sb->s_blocksize;
- bh = ocfs2_bread(dir, 0, &status, 0);
- if (!bh) {
+ status = ocfs2_read_dir_block(dir, 0, &bh, 0);
+ if (status) {
mlog_errno(status);
goto bail;
}
@@ -1702,11 +1926,10 @@ static int ocfs2_find_dir_space_el(struct inode *dir, const char *name,
status = -ENOSPC;
goto bail;
}
- bh = ocfs2_bread(dir,
- offset >> sb->s_blocksize_bits,
- &status,
- 0);
- if (!bh) {
+ status = ocfs2_read_dir_block(dir,
+ offset >> sb->s_blocksize_bits,
+ &bh, 0);
+ if (status) {
mlog_errno(status);
goto bail;
}
@@ -1721,6 +1944,11 @@ static int ocfs2_find_dir_space_el(struct inode *dir, const char *name,
status = -EEXIST;
goto bail;
}
+
+ if (ocfs2_skip_dir_trailer(dir, de, offset % blocksize,
+ blocksize))
+ goto next;
+
if (ocfs2_dirent_would_fit(de, rec_len)) {
/* Ok, we found a spot. Return this bh and let
* the caller actually fill it in. */
@@ -1729,6 +1957,7 @@ static int ocfs2_find_dir_space_el(struct inode *dir, const char *name,
status = 0;
goto bail;
}
+next:
offset += le16_to_cpu(de->rec_len);
de = (struct ocfs2_dir_entry *)((char *) de + le16_to_cpu(de->rec_len));
}
diff --git a/fs/ocfs2/dir.h b/fs/ocfs2/dir.h
index ce48b9080d87..c511e2e18e9f 100644
--- a/fs/ocfs2/dir.h
+++ b/fs/ocfs2/dir.h
@@ -83,4 +83,6 @@ int ocfs2_fill_new_dir(struct ocfs2_super *osb,
struct buffer_head *fe_bh,
struct ocfs2_alloc_context *data_ac);
+struct ocfs2_dir_block_trailer *ocfs2_dir_trailer_from_size(int blocksize,
+ void *data);
#endif /* OCFS2_DIR_H */
diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c
index 644bee55d8ba..d07ddbe4b283 100644
--- a/fs/ocfs2/dlm/dlmast.c
+++ b/fs/ocfs2/dlm/dlmast.c
@@ -275,6 +275,7 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data,
struct list_head *iter, *head=NULL;
u64 cookie;
u32 flags;
+ u8 node;
if (!dlm_grab(dlm)) {
dlm_error(DLM_REJECTED);
@@ -286,18 +287,21 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data,
name = past->name;
locklen = past->namelen;
- cookie = be64_to_cpu(past->cookie);
+ cookie = past->cookie;
flags = be32_to_cpu(past->flags);
+ node = past->node_idx;
if (locklen > DLM_LOCKID_NAME_MAX) {
ret = DLM_IVBUFLEN;
- mlog(ML_ERROR, "Invalid name length in proxy ast handler!\n");
+ mlog(ML_ERROR, "Invalid name length (%d) in proxy ast "
+ "handler!\n", locklen);
goto leave;
}
if ((flags & (LKM_PUT_LVB|LKM_GET_LVB)) ==
(LKM_PUT_LVB|LKM_GET_LVB)) {
- mlog(ML_ERROR, "both PUT and GET lvb specified\n");
+ mlog(ML_ERROR, "Both PUT and GET lvb specified, (0x%x)\n",
+ flags);
ret = DLM_BADARGS;
goto leave;
}
@@ -310,22 +314,21 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data,
if (past->type != DLM_AST &&
past->type != DLM_BAST) {
mlog(ML_ERROR, "Unknown ast type! %d, cookie=%u:%llu"
- "name=%.*s\n", past->type,
- dlm_get_lock_cookie_node(cookie),
- dlm_get_lock_cookie_seq(cookie),
- locklen, name);
+ "name=%.*s, node=%u\n", past->type,
+ dlm_get_lock_cookie_node(be64_to_cpu(cookie)),
+ dlm_get_lock_cookie_seq(be64_to_cpu(cookie)),
+ locklen, name, node);
ret = DLM_IVLOCKID;
goto leave;
}
res = dlm_lookup_lockres(dlm, name, locklen);
if (!res) {
- mlog(0, "got %sast for unknown lockres! "
- "cookie=%u:%llu, name=%.*s, namelen=%u\n",
- past->type == DLM_AST ? "" : "b",
- dlm_get_lock_cookie_node(cookie),
- dlm_get_lock_cookie_seq(cookie),
- locklen, name, locklen);
+ mlog(0, "Got %sast for unknown lockres! cookie=%u:%llu, "
+ "name=%.*s, node=%u\n", (past->type == DLM_AST ? "" : "b"),
+ dlm_get_lock_cookie_node(be64_to_cpu(cookie)),
+ dlm_get_lock_cookie_seq(be64_to_cpu(cookie)),
+ locklen, name, node);
ret = DLM_IVLOCKID;
goto leave;
}
@@ -337,12 +340,12 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data,
spin_lock(&res->spinlock);
if (res->state & DLM_LOCK_RES_RECOVERING) {
- mlog(0, "responding with DLM_RECOVERING!\n");
+ mlog(0, "Responding with DLM_RECOVERING!\n");
ret = DLM_RECOVERING;
goto unlock_out;
}
if (res->state & DLM_LOCK_RES_MIGRATING) {
- mlog(0, "responding with DLM_MIGRATING!\n");
+ mlog(0, "Responding with DLM_MIGRATING!\n");
ret = DLM_MIGRATING;
goto unlock_out;
}
@@ -351,7 +354,7 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data,
lock = NULL;
list_for_each(iter, head) {
lock = list_entry (iter, struct dlm_lock, list);
- if (be64_to_cpu(lock->ml.cookie) == cookie)
+ if (lock->ml.cookie == cookie)
goto do_ast;
}
@@ -363,15 +366,15 @@ int dlm_proxy_ast_handler(struct o2net_msg *msg, u32 len, void *data,
list_for_each(iter, head) {
lock = list_entry (iter, struct dlm_lock, list);
- if (be64_to_cpu(lock->ml.cookie) == cookie)
+ if (lock->ml.cookie == cookie)
goto do_ast;
}
- mlog(0, "got %sast for unknown lock! cookie=%u:%llu, "
- "name=%.*s, namelen=%u\n", past->type == DLM_AST ? "" : "b",
- dlm_get_lock_cookie_node(cookie),
- dlm_get_lock_cookie_seq(cookie),
- locklen, name, locklen);
+ mlog(0, "Got %sast for unknown lock! cookie=%u:%llu, name=%.*s, "
+ "node=%u\n", past->type == DLM_AST ? "" : "b",
+ dlm_get_lock_cookie_node(be64_to_cpu(cookie)),
+ dlm_get_lock_cookie_seq(be64_to_cpu(cookie)),
+ locklen, name, node);
ret = DLM_NORMAL;
unlock_out:
@@ -383,8 +386,8 @@ do_ast:
if (past->type == DLM_AST) {
/* do not alter lock refcount. switching lists. */
list_move_tail(&lock->list, &res->granted);
- mlog(0, "ast: adding to granted list... type=%d, "
- "convert_type=%d\n", lock->ml.type, lock->ml.convert_type);
+ mlog(0, "ast: Adding to granted list... type=%d, "
+ "convert_type=%d\n", lock->ml.type, lock->ml.convert_type);
if (lock->ml.convert_type != LKM_IVMODE) {
lock->ml.type = lock->ml.convert_type;
lock->ml.convert_type = LKM_IVMODE;
@@ -408,7 +411,6 @@ do_ast:
dlm_do_local_bast(dlm, res, lock, past->blocked_type);
leave:
-
if (res)
dlm_lockres_put(res);
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index d5a86fb81a49..bb53714813ab 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -140,6 +140,7 @@ struct dlm_ctxt
unsigned int purge_count;
spinlock_t spinlock;
spinlock_t ast_lock;
+ spinlock_t track_lock;
char *name;
u8 node_num;
u32 key;
@@ -316,6 +317,8 @@ struct dlm_lock_resource
* put on a list for the dlm thread to run. */
unsigned long last_used;
+ struct dlm_ctxt *dlm;
+
unsigned migration_pending:1;
atomic_t asts_reserved;
spinlock_t spinlock;
diff --git a/fs/ocfs2/dlm/dlmdebug.c b/fs/ocfs2/dlm/dlmdebug.c
index 1b81dcba175d..b32f60a5acfb 100644
--- a/fs/ocfs2/dlm/dlmdebug.c
+++ b/fs/ocfs2/dlm/dlmdebug.c
@@ -630,43 +630,38 @@ static void *lockres_seq_start(struct seq_file *m, loff_t *pos)
{
struct debug_lockres *dl = m->private;
struct dlm_ctxt *dlm = dl->dl_ctxt;
+ struct dlm_lock_resource *oldres = dl->dl_res;
struct dlm_lock_resource *res = NULL;
+ struct list_head *track_list;
- spin_lock(&dlm->spinlock);
+ spin_lock(&dlm->track_lock);
+ if (oldres)
+ track_list = &oldres->tracking;
+ else
+ track_list = &dlm->tracking_list;
- if (dl->dl_res) {
- list_for_each_entry(res, &dl->dl_res->tracking, tracking) {
- if (dl->dl_res) {
- dlm_lockres_put(dl->dl_res);
- dl->dl_res = NULL;
- }
- if (&res->tracking == &dlm->tracking_list) {
- mlog(0, "End of list found, %p\n", res);
- dl = NULL;
- break;
- }
+ list_for_each_entry(res, track_list, tracking) {
+ if (&res->tracking == &dlm->tracking_list)
+ res = NULL;
+ else
dlm_lockres_get(res);
- dl->dl_res = res;
- break;
- }
- } else {
- if (!list_empty(&dlm->tracking_list)) {
- list_for_each_entry(res, &dlm->tracking_list, tracking)
- break;
- dlm_lockres_get(res);
- dl->dl_res = res;
- } else
- dl = NULL;
+ break;
}
+ spin_unlock(&dlm->track_lock);
- if (dl) {
- spin_lock(&dl->dl_res->spinlock);
- dump_lockres(dl->dl_res, dl->dl_buf, dl->dl_len - 1);
- spin_unlock(&dl->dl_res->spinlock);
- }
+ if (oldres)
+ dlm_lockres_put(oldres);
- spin_unlock(&dlm->spinlock);
+ dl->dl_res = res;
+ if (res) {
+ spin_lock(&res->spinlock);
+ dump_lockres(res, dl->dl_buf, dl->dl_len - 1);
+ spin_unlock(&res->spinlock);
+ } else
+ dl = NULL;
+
+ /* passed to seq_show */
return dl;
}
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 63f8125824e8..d8d578f45613 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -1550,6 +1550,7 @@ static struct dlm_ctxt *dlm_alloc_ctxt(const char *domain,
spin_lock_init(&dlm->spinlock);
spin_lock_init(&dlm->master_lock);
spin_lock_init(&dlm->ast_lock);
+ spin_lock_init(&dlm->track_lock);
INIT_LIST_HEAD(&dlm->list);
INIT_LIST_HEAD(&dlm->dirty_list);
INIT_LIST_HEAD(&dlm->reco.resources);
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 44f87caf3683..54e182a27caf 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -505,8 +505,10 @@ void dlm_change_lockres_owner(struct dlm_ctxt *dlm,
static void dlm_lockres_release(struct kref *kref)
{
struct dlm_lock_resource *res;
+ struct dlm_ctxt *dlm;
res = container_of(kref, struct dlm_lock_resource, refs);
+ dlm = res->dlm;
/* This should not happen -- all lockres' have a name
* associated with them at init time. */
@@ -515,6 +517,7 @@ static void dlm_lockres_release(struct kref *kref)
mlog(0, "destroying lockres %.*s\n", res->lockname.len,
res->lockname.name);
+ spin_lock(&dlm->track_lock);
if (!list_empty(&res->tracking))
list_del_init(&res->tracking);
else {
@@ -522,6 +525,9 @@ static void dlm_lockres_release(struct kref *kref)
res->lockname.len, res->lockname.name);
dlm_print_one_lock_resource(res);
}
+ spin_unlock(&dlm->track_lock);
+
+ dlm_put(dlm);
if (!hlist_unhashed(&res->hash_node) ||
!list_empty(&res->granted) ||
@@ -595,6 +601,10 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm,
res->migration_pending = 0;
res->inflight_locks = 0;
+ /* put in dlm_lockres_release */
+ dlm_grab(dlm);
+ res->dlm = dlm;
+
kref_init(&res->refs);
/* just for consistency */
@@ -722,14 +732,21 @@ lookup:
if (tmpres) {
int dropping_ref = 0;
+ spin_unlock(&dlm->spinlock);
+
spin_lock(&tmpres->spinlock);
+ /* We wait for the other thread that is mastering the resource */
+ if (tmpres->owner == DLM_LOCK_RES_OWNER_UNKNOWN) {
+ __dlm_wait_on_lockres(tmpres);
+ BUG_ON(tmpres->owner == DLM_LOCK_RES_OWNER_UNKNOWN);
+ }
+
if (tmpres->owner == dlm->node_num) {
BUG_ON(tmpres->state & DLM_LOCK_RES_DROPPING_REF);
dlm_lockres_grab_inflight_ref(dlm, tmpres);
} else if (tmpres->state & DLM_LOCK_RES_DROPPING_REF)
dropping_ref = 1;
spin_unlock(&tmpres->spinlock);
- spin_unlock(&dlm->spinlock);
/* wait until done messaging the master, drop our ref to allow
* the lockres to be purged, start over. */
@@ -2949,7 +2966,7 @@ static int dlm_do_migrate_request(struct dlm_ctxt *dlm,
struct dlm_node_iter *iter)
{
struct dlm_migrate_request migrate;
- int ret, status = 0;
+ int ret, skip, status = 0;
int nodenum;
memset(&migrate, 0, sizeof(migrate));
@@ -2966,12 +2983,27 @@ static int dlm_do_migrate_request(struct dlm_ctxt *dlm,
nodenum == new_master)
continue;
+ /* We could race exit domain. If exited, skip. */
+ spin_lock(&dlm->spinlock);
+ skip = (!test_bit(nodenum, dlm->domain_map));
+ spin_unlock(&dlm->spinlock);
+ if (skip) {
+ clear_bit(nodenum, iter->node_map);
+ continue;
+ }
+
ret = o2net_send_message(DLM_MIGRATE_REQUEST_MSG, dlm->key,
&migrate, sizeof(migrate), nodenum,
&status);
- if (ret < 0)
- mlog_errno(ret);
- else if (status < 0) {
+ if (ret < 0) {
+ mlog(0, "migrate_request returned %d!\n", ret);
+ if (!dlm_is_host_down(ret)) {
+ mlog(ML_ERROR, "unhandled error=%d!\n", ret);
+ BUG();
+ }
+ clear_bit(nodenum, iter->node_map);
+ ret = 0;
+ } else if (status < 0) {
mlog(0, "migrate request (node %u) returned %d!\n",
nodenum, status);
ret = status;
diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 4060bb328bc8..d1295203029f 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -181,7 +181,8 @@ static int dlm_purge_lockres(struct dlm_ctxt *dlm,
spin_lock(&res->spinlock);
/* This ensures that clear refmap is sent after the set */
- __dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG);
+ __dlm_wait_on_lockres_flags(res, (DLM_LOCK_RES_SETREF_INPROG |
+ DLM_LOCK_RES_MIGRATING));
spin_unlock(&res->spinlock);
/* clear our bit from the master's refmap, ignore errors */
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 6e6cc0a2e5f7..f731ab491795 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -32,6 +32,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/time.h>
+#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_DLM_GLUE
#include <cluster/masklog.h>
@@ -51,6 +52,7 @@
#include "slot_map.h"
#include "super.h"
#include "uptodate.h"
+#include "quota.h"
#include "buffer_head_io.h"
@@ -68,6 +70,7 @@ struct ocfs2_mask_waiter {
static struct ocfs2_super *ocfs2_get_dentry_osb(struct ocfs2_lock_res *lockres);
static struct ocfs2_super *ocfs2_get_inode_osb(struct ocfs2_lock_res *lockres);
static struct ocfs2_super *ocfs2_get_file_osb(struct ocfs2_lock_res *lockres);
+static struct ocfs2_super *ocfs2_get_qinfo_osb(struct ocfs2_lock_res *lockres);
/*
* Return value from ->downconvert_worker functions.
@@ -102,6 +105,7 @@ static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres,
static void ocfs2_dentry_post_unlock(struct ocfs2_super *osb,
struct ocfs2_lock_res *lockres);
+static void ocfs2_set_qinfo_lvb(struct ocfs2_lock_res *lockres);
#define mlog_meta_lvb(__level, __lockres) ocfs2_dump_meta_lvb_info(__level, __PRETTY_FUNCTION__, __LINE__, __lockres)
@@ -111,8 +115,7 @@ static void ocfs2_dump_meta_lvb_info(u64 level,
unsigned int line,
struct ocfs2_lock_res *lockres)
{
- struct ocfs2_meta_lvb *lvb =
- (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ struct ocfs2_meta_lvb *lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
mlog(level, "LVB information for %s (called from %s:%u):\n",
lockres->l_name, function, line);
@@ -258,6 +261,12 @@ static struct ocfs2_lock_res_ops ocfs2_flock_lops = {
.flags = 0,
};
+static struct ocfs2_lock_res_ops ocfs2_qinfo_lops = {
+ .set_lvb = ocfs2_set_qinfo_lvb,
+ .get_osb = ocfs2_get_qinfo_osb,
+ .flags = LOCK_TYPE_REQUIRES_REFRESH | LOCK_TYPE_USES_LVB,
+};
+
static inline int ocfs2_is_inode_lock(struct ocfs2_lock_res *lockres)
{
return lockres->l_type == OCFS2_LOCK_TYPE_META ||
@@ -279,6 +288,13 @@ static inline struct ocfs2_dentry_lock *ocfs2_lock_res_dl(struct ocfs2_lock_res
return (struct ocfs2_dentry_lock *)lockres->l_priv;
}
+static inline struct ocfs2_mem_dqinfo *ocfs2_lock_res_qinfo(struct ocfs2_lock_res *lockres)
+{
+ BUG_ON(lockres->l_type != OCFS2_LOCK_TYPE_QINFO);
+
+ return (struct ocfs2_mem_dqinfo *)lockres->l_priv;
+}
+
static inline struct ocfs2_super *ocfs2_get_lockres_osb(struct ocfs2_lock_res *lockres)
{
if (lockres->l_ops->get_osb)
@@ -507,6 +523,13 @@ static struct ocfs2_super *ocfs2_get_inode_osb(struct ocfs2_lock_res *lockres)
return OCFS2_SB(inode->i_sb);
}
+static struct ocfs2_super *ocfs2_get_qinfo_osb(struct ocfs2_lock_res *lockres)
+{
+ struct ocfs2_mem_dqinfo *info = lockres->l_priv;
+
+ return OCFS2_SB(info->dqi_gi.dqi_sb);
+}
+
static struct ocfs2_super *ocfs2_get_file_osb(struct ocfs2_lock_res *lockres)
{
struct ocfs2_file_private *fp = lockres->l_priv;
@@ -609,6 +632,17 @@ void ocfs2_file_lock_res_init(struct ocfs2_lock_res *lockres,
lockres->l_flags |= OCFS2_LOCK_NOCACHE;
}
+void ocfs2_qinfo_lock_res_init(struct ocfs2_lock_res *lockres,
+ struct ocfs2_mem_dqinfo *info)
+{
+ ocfs2_lock_res_init_once(lockres);
+ ocfs2_build_lock_name(OCFS2_LOCK_TYPE_QINFO, info->dqi_gi.dqi_type,
+ 0, lockres->l_name);
+ ocfs2_lock_res_init_common(OCFS2_SB(info->dqi_gi.dqi_sb), lockres,
+ OCFS2_LOCK_TYPE_QINFO, &ocfs2_qinfo_lops,
+ info);
+}
+
void ocfs2_lock_res_free(struct ocfs2_lock_res *res)
{
mlog_entry_void();
@@ -1829,7 +1863,7 @@ static void __ocfs2_stuff_meta_lvb(struct inode *inode)
mlog_entry_void();
- lvb = (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
/*
* Invalidate the LVB of a deleted inode - this way other
@@ -1881,7 +1915,7 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode)
mlog_meta_lvb(0, lockres);
- lvb = (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
/* We're safe here without the lockres lock... */
spin_lock(&oi->ip_lock);
@@ -1916,8 +1950,7 @@ static void ocfs2_refresh_inode_from_lvb(struct inode *inode)
static inline int ocfs2_meta_lvb_is_trustable(struct inode *inode,
struct ocfs2_lock_res *lockres)
{
- struct ocfs2_meta_lvb *lvb =
- (struct ocfs2_meta_lvb *)ocfs2_dlm_lvb(&lockres->l_lksb);
+ struct ocfs2_meta_lvb *lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
if (lvb->lvb_version == OCFS2_LVB_VERSION
&& be32_to_cpu(lvb->lvb_igeneration) == inode->i_generation)
@@ -2024,7 +2057,7 @@ static int ocfs2_inode_lock_update(struct inode *inode,
} else {
/* Boo, we have to go to disk. */
/* read bh, cast, ocfs2_refresh_inode */
- status = ocfs2_read_block(inode, oi->ip_blkno, bh);
+ status = ocfs2_read_inode_block(inode, bh);
if (status < 0) {
mlog_errno(status);
goto bail_refresh;
@@ -2032,18 +2065,14 @@ static int ocfs2_inode_lock_update(struct inode *inode,
fe = (struct ocfs2_dinode *) (*bh)->b_data;
/* This is a good chance to make sure we're not
- * locking an invalid object.
+ * locking an invalid object. ocfs2_read_inode_block()
+ * already checked that the inode block is sane.
*
* We bug on a stale inode here because we checked
* above whether it was wiped from disk. The wiping
* node provides a guarantee that we receive that
* message and can mark the inode before dropping any
* locks associated with it. */
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(inode->i_sb, fe);
- status = -EIO;
- goto bail_refresh;
- }
mlog_bug_on_msg(inode->i_generation !=
le32_to_cpu(fe->i_generation),
"Invalid dinode %llu disk generation: %u "
@@ -2085,7 +2114,7 @@ static int ocfs2_assign_bh(struct inode *inode,
return 0;
}
- status = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, ret_bh);
+ status = ocfs2_read_inode_block(inode, ret_bh);
if (status < 0)
mlog_errno(status);
@@ -3449,6 +3478,117 @@ static int ocfs2_dentry_convert_worker(struct ocfs2_lock_res *lockres,
return UNBLOCK_CONTINUE_POST;
}
+static void ocfs2_set_qinfo_lvb(struct ocfs2_lock_res *lockres)
+{
+ struct ocfs2_qinfo_lvb *lvb;
+ struct ocfs2_mem_dqinfo *oinfo = ocfs2_lock_res_qinfo(lockres);
+ struct mem_dqinfo *info = sb_dqinfo(oinfo->dqi_gi.dqi_sb,
+ oinfo->dqi_gi.dqi_type);
+
+ mlog_entry_void();
+
+ lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
+ lvb->lvb_version = OCFS2_QINFO_LVB_VERSION;
+ lvb->lvb_bgrace = cpu_to_be32(info->dqi_bgrace);
+ lvb->lvb_igrace = cpu_to_be32(info->dqi_igrace);
+ lvb->lvb_syncms = cpu_to_be32(oinfo->dqi_syncms);
+ lvb->lvb_blocks = cpu_to_be32(oinfo->dqi_gi.dqi_blocks);
+ lvb->lvb_free_blk = cpu_to_be32(oinfo->dqi_gi.dqi_free_blk);
+ lvb->lvb_free_entry = cpu_to_be32(oinfo->dqi_gi.dqi_free_entry);
+
+ mlog_exit_void();
+}
+
+void ocfs2_qinfo_unlock(struct ocfs2_mem_dqinfo *oinfo, int ex)
+{
+ struct ocfs2_lock_res *lockres = &oinfo->dqi_gqlock;
+ struct ocfs2_super *osb = OCFS2_SB(oinfo->dqi_gi.dqi_sb);
+ int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
+
+ mlog_entry_void();
+ if (!ocfs2_is_hard_readonly(osb) && !ocfs2_mount_local(osb))
+ ocfs2_cluster_unlock(osb, lockres, level);
+ mlog_exit_void();
+}
+
+static int ocfs2_refresh_qinfo(struct ocfs2_mem_dqinfo *oinfo)
+{
+ struct mem_dqinfo *info = sb_dqinfo(oinfo->dqi_gi.dqi_sb,
+ oinfo->dqi_gi.dqi_type);
+ struct ocfs2_lock_res *lockres = &oinfo->dqi_gqlock;
+ struct ocfs2_qinfo_lvb *lvb = ocfs2_dlm_lvb(&lockres->l_lksb);
+ struct buffer_head *bh = NULL;
+ struct ocfs2_global_disk_dqinfo *gdinfo;
+ int status = 0;
+
+ if (lvb->lvb_version == OCFS2_QINFO_LVB_VERSION) {
+ info->dqi_bgrace = be32_to_cpu(lvb->lvb_bgrace);
+ info->dqi_igrace = be32_to_cpu(lvb->lvb_igrace);
+ oinfo->dqi_syncms = be32_to_cpu(lvb->lvb_syncms);
+ oinfo->dqi_gi.dqi_blocks = be32_to_cpu(lvb->lvb_blocks);
+ oinfo->dqi_gi.dqi_free_blk = be32_to_cpu(lvb->lvb_free_blk);
+ oinfo->dqi_gi.dqi_free_entry =
+ be32_to_cpu(lvb->lvb_free_entry);
+ } else {
+ status = ocfs2_read_quota_block(oinfo->dqi_gqinode, 0, &bh);
+ if (status) {
+ mlog_errno(status);
+ goto bail;
+ }
+ gdinfo = (struct ocfs2_global_disk_dqinfo *)
+ (bh->b_data + OCFS2_GLOBAL_INFO_OFF);
+ info->dqi_bgrace = le32_to_cpu(gdinfo->dqi_bgrace);
+ info->dqi_igrace = le32_to_cpu(gdinfo->dqi_igrace);
+ oinfo->dqi_syncms = le32_to_cpu(gdinfo->dqi_syncms);
+ oinfo->dqi_gi.dqi_blocks = le32_to_cpu(gdinfo->dqi_blocks);
+ oinfo->dqi_gi.dqi_free_blk = le32_to_cpu(gdinfo->dqi_free_blk);
+ oinfo->dqi_gi.dqi_free_entry =
+ le32_to_cpu(gdinfo->dqi_free_entry);
+ brelse(bh);
+ ocfs2_track_lock_refresh(lockres);
+ }
+
+bail:
+ return status;
+}
+
+/* Lock quota info, this function expects at least shared lock on the quota file
+ * so that we can safely refresh quota info from disk. */
+int ocfs2_qinfo_lock(struct ocfs2_mem_dqinfo *oinfo, int ex)
+{
+ struct ocfs2_lock_res *lockres = &oinfo->dqi_gqlock;
+ struct ocfs2_super *osb = OCFS2_SB(oinfo->dqi_gi.dqi_sb);
+ int level = ex ? DLM_LOCK_EX : DLM_LOCK_PR;
+ int status = 0;
+
+ mlog_entry_void();
+
+ /* On RO devices, locking really isn't needed... */
+ if (ocfs2_is_hard_readonly(osb)) {
+ if (ex)
+ status = -EROFS;
+ goto bail;
+ }
+ if (ocfs2_mount_local(osb))
+ goto bail;
+
+ status = ocfs2_cluster_lock(osb, lockres, level, 0, 0);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail;
+ }
+ if (!ocfs2_should_refresh_lock_res(lockres))
+ goto bail;
+ /* OK, we have the lock but we need to refresh the quota info */
+ status = ocfs2_refresh_qinfo(oinfo);
+ if (status)
+ ocfs2_qinfo_unlock(oinfo, ex);
+ ocfs2_complete_lock_res_refresh(lockres, status);
+bail:
+ mlog_exit(status);
+ return status;
+}
+
/*
* This is the filesystem locking protocol. It provides the lock handling
* hooks for the underlying DLM. It has a maximum version number.
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 2bb01f09c1b1..3f8d9986b8e0 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -49,6 +49,19 @@ struct ocfs2_meta_lvb {
__be32 lvb_reserved2;
};
+#define OCFS2_QINFO_LVB_VERSION 1
+
+struct ocfs2_qinfo_lvb {
+ __u8 lvb_version;
+ __u8 lvb_reserved[3];
+ __be32 lvb_bgrace;
+ __be32 lvb_igrace;
+ __be32 lvb_syncms;
+ __be32 lvb_blocks;
+ __be32 lvb_free_blk;
+ __be32 lvb_free_entry;
+};
+
/* ocfs2_inode_lock_full() 'arg_flags' flags */
/* don't wait on recovery. */
#define OCFS2_META_LOCK_RECOVERY (0x01)
@@ -69,6 +82,9 @@ void ocfs2_dentry_lock_res_init(struct ocfs2_dentry_lock *dl,
struct ocfs2_file_private;
void ocfs2_file_lock_res_init(struct ocfs2_lock_res *lockres,
struct ocfs2_file_private *fp);
+struct ocfs2_mem_dqinfo;
+void ocfs2_qinfo_lock_res_init(struct ocfs2_lock_res *lockres,
+ struct ocfs2_mem_dqinfo *info);
void ocfs2_lock_res_free(struct ocfs2_lock_res *res);
int ocfs2_create_new_inode_locks(struct inode *inode);
int ocfs2_drop_inode_locks(struct inode *inode);
@@ -103,6 +119,9 @@ int ocfs2_dentry_lock(struct dentry *dentry, int ex);
void ocfs2_dentry_unlock(struct dentry *dentry, int ex);
int ocfs2_file_lock(struct file *file, int ex, int trylock);
void ocfs2_file_unlock(struct file *file);
+int ocfs2_qinfo_lock(struct ocfs2_mem_dqinfo *oinfo, int ex);
+void ocfs2_qinfo_unlock(struct ocfs2_mem_dqinfo *oinfo, int ex);
+
void ocfs2_mark_lockres_freeing(struct ocfs2_lock_res *lockres);
void ocfs2_simple_drop_lockres(struct ocfs2_super *osb,
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 2baedac58234..f2bb1a04d253 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -293,7 +293,7 @@ static int ocfs2_last_eb_is_empty(struct inode *inode,
struct ocfs2_extent_block *eb;
struct ocfs2_extent_list *el;
- ret = ocfs2_read_block(inode, last_eb_blk, &eb_bh);
+ ret = ocfs2_read_extent_block(inode, last_eb_blk, &eb_bh);
if (ret) {
mlog_errno(ret);
goto out;
@@ -302,12 +302,6 @@ static int ocfs2_last_eb_is_empty(struct inode *inode,
eb = (struct ocfs2_extent_block *) eb_bh->b_data;
el = &eb->h_list;
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- ret = -EROFS;
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, eb);
- goto out;
- }
-
if (el->l_tree_depth) {
ocfs2_error(inode->i_sb,
"Inode %lu has non zero tree depth in "
@@ -381,23 +375,16 @@ static int ocfs2_figure_hole_clusters(struct inode *inode,
if (le64_to_cpu(eb->h_next_leaf_blk) == 0ULL)
goto no_more_extents;
- ret = ocfs2_read_block(inode,
- le64_to_cpu(eb->h_next_leaf_blk),
- &next_eb_bh);
+ ret = ocfs2_read_extent_block(inode,
+ le64_to_cpu(eb->h_next_leaf_blk),
+ &next_eb_bh);
if (ret) {
mlog_errno(ret);
goto out;
}
+
next_eb = (struct ocfs2_extent_block *)next_eb_bh->b_data;
-
- if (!OCFS2_IS_VALID_EXTENT_BLOCK(next_eb)) {
- ret = -EROFS;
- OCFS2_RO_ON_INVALID_EXTENT_BLOCK(inode->i_sb, next_eb);
- goto out;
- }
-
el = &next_eb->h_list;
-
i = ocfs2_search_for_hole_index(el, v_cluster);
}
@@ -630,7 +617,7 @@ int ocfs2_get_clusters(struct inode *inode, u32 v_cluster,
if (ret == 0)
goto out;
- ret = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &di_bh);
+ ret = ocfs2_read_inode_block(inode, &di_bh);
if (ret) {
mlog_errno(ret);
goto out;
@@ -819,3 +806,74 @@ out:
return ret;
}
+
+int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr,
+ struct buffer_head *bhs[], int flags,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh))
+{
+ int rc = 0;
+ u64 p_block, p_count;
+ int i, count, done = 0;
+
+ mlog_entry("(inode = %p, v_block = %llu, nr = %d, bhs = %p, "
+ "flags = %x, validate = %p)\n",
+ inode, (unsigned long long)v_block, nr, bhs, flags,
+ validate);
+
+ if (((v_block + nr - 1) << inode->i_sb->s_blocksize_bits) >=
+ i_size_read(inode)) {
+ BUG_ON(!(flags & OCFS2_BH_READAHEAD));
+ goto out;
+ }
+
+ while (done < nr) {
+ down_read(&OCFS2_I(inode)->ip_alloc_sem);
+ rc = ocfs2_extent_map_get_blocks(inode, v_block + done,
+ &p_block, &p_count, NULL);
+ up_read(&OCFS2_I(inode)->ip_alloc_sem);
+ if (rc) {
+ mlog_errno(rc);
+ break;
+ }
+
+ if (!p_block) {
+ rc = -EIO;
+ mlog(ML_ERROR,
+ "Inode #%llu contains a hole at offset %llu\n",
+ (unsigned long long)OCFS2_I(inode)->ip_blkno,
+ (unsigned long long)(v_block + done) <<
+ inode->i_sb->s_blocksize_bits);
+ break;
+ }
+
+ count = nr - done;
+ if (p_count < count)
+ count = p_count;
+
+ /*
+ * If the caller passed us bhs, they should have come
+ * from a previous readahead call to this function. Thus,
+ * they should have the right b_blocknr.
+ */
+ for (i = 0; i < count; i++) {
+ if (!bhs[done + i])
+ continue;
+ BUG_ON(bhs[done + i]->b_blocknr != (p_block + i));
+ }
+
+ rc = ocfs2_read_blocks(inode, p_block, count, bhs + done,
+ flags, validate);
+ if (rc) {
+ mlog_errno(rc);
+ break;
+ }
+ done += count;
+ }
+
+out:
+ mlog_exit(rc);
+ return rc;
+}
+
+
diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h
index 1c4aa8b06f34..b7dd9731b462 100644
--- a/fs/ocfs2/extent_map.h
+++ b/fs/ocfs2/extent_map.h
@@ -57,4 +57,28 @@ int ocfs2_xattr_get_clusters(struct inode *inode, u32 v_cluster,
u32 *p_cluster, u32 *num_clusters,
struct ocfs2_extent_list *el);
+int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr,
+ struct buffer_head *bhs[], int flags,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh));
+static inline int ocfs2_read_virt_block(struct inode *inode, u64 v_block,
+ struct buffer_head **bh,
+ int (*validate)(struct super_block *sb,
+ struct buffer_head *bh))
+{
+ int status = 0;
+
+ if (bh == NULL) {
+ printk("ocfs2: bh == NULL\n");
+ status = -EINVAL;
+ goto bail;
+ }
+
+ status = ocfs2_read_virt_blocks(inode, v_block, 1, bh, 0, validate);
+
+bail:
+ return status;
+}
+
+
#endif /* _EXTENT_MAP_H */
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index e2570a3bc2b2..e8f795f978aa 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -35,6 +35,7 @@
#include <linux/mount.h>
#include <linux/writeback.h>
#include <linux/falloc.h>
+#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_INODE
#include <cluster/masklog.h>
@@ -56,6 +57,8 @@
#include "suballoc.h"
#include "super.h"
#include "xattr.h"
+#include "acl.h"
+#include "quota.h"
#include "buffer_head_io.h"
@@ -253,8 +256,8 @@ int ocfs2_update_inode_atime(struct inode *inode,
goto out;
}
- ret = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -303,9 +306,9 @@ bail:
return status;
}
-static int ocfs2_simple_size_update(struct inode *inode,
- struct buffer_head *di_bh,
- u64 new_i_size)
+int ocfs2_simple_size_update(struct inode *inode,
+ struct buffer_head *di_bh,
+ u64 new_i_size)
{
int ret;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
@@ -350,8 +353,8 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb,
goto out;
}
- status = ocfs2_journal_access(handle, inode, fe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, inode, fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto out_commit;
@@ -401,12 +404,9 @@ static int ocfs2_truncate_file(struct inode *inode,
(unsigned long long)OCFS2_I(inode)->ip_blkno,
(unsigned long long)new_i_size);
+ /* We trust di_bh because it comes from ocfs2_inode_lock(), which
+ * already validated it */
fe = (struct ocfs2_dinode *) di_bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(inode->i_sb, fe);
- status = -EIO;
- goto bail;
- }
mlog_bug_on_msg(le64_to_cpu(fe->i_size) != i_size_read(inode),
"Inode %llu, inode i_size = %lld != di "
@@ -536,6 +536,7 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
enum ocfs2_alloc_restarted why;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_extent_tree et;
+ int did_quota = 0;
mlog_entry("(clusters_to_add = %u)\n", clusters_to_add);
@@ -545,18 +546,12 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
*/
BUG_ON(mark_unwritten && !ocfs2_sparse_alloc(osb));
- status = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &bh);
+ status = ocfs2_read_inode_block(inode, &bh);
if (status < 0) {
mlog_errno(status);
goto leave;
}
-
fe = (struct ocfs2_dinode *) bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(inode->i_sb, fe);
- status = -EIO;
- goto leave;
- }
restart_all:
BUG_ON(le32_to_cpu(fe->i_clusters) != OCFS2_I(inode)->ip_clusters);
@@ -585,11 +580,18 @@ restart_all:
}
restarted_transaction:
+ if (vfs_dq_alloc_space_nodirty(inode, ocfs2_clusters_to_bytes(osb->sb,
+ clusters_to_add))) {
+ status = -EDQUOT;
+ goto leave;
+ }
+ did_quota = 1;
+
/* reserve a write to the file entry early on - that we if we
* run out of credits in the allocation path, we can still
* update i_size. */
- status = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -622,6 +624,10 @@ restarted_transaction:
spin_lock(&OCFS2_I(inode)->ip_lock);
clusters_to_add -= (OCFS2_I(inode)->ip_clusters - prev_clusters);
spin_unlock(&OCFS2_I(inode)->ip_lock);
+ /* Release unused quota reservation */
+ vfs_dq_free_space(inode,
+ ocfs2_clusters_to_bytes(osb->sb, clusters_to_add));
+ did_quota = 0;
if (why != RESTART_NONE && clusters_to_add) {
if (why == RESTART_META) {
@@ -654,6 +660,9 @@ restarted_transaction:
OCFS2_I(inode)->ip_clusters, (long long)i_size_read(inode));
leave:
+ if (status < 0 && did_quota)
+ vfs_dq_free_space(inode,
+ ocfs2_clusters_to_bytes(osb->sb, clusters_to_add));
if (handle) {
ocfs2_commit_trans(osb, handle);
handle = NULL;
@@ -885,6 +894,9 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
struct ocfs2_super *osb = OCFS2_SB(sb);
struct buffer_head *bh = NULL;
handle_t *handle = NULL;
+ int locked[MAXQUOTAS] = {0, 0};
+ int credits, qtype;
+ struct ocfs2_mem_dqinfo *oinfo;
mlog_entry("(0x%p, '%.*s')\n", dentry,
dentry->d_name.len, dentry->d_name.name);
@@ -955,11 +967,47 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
}
}
- handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
- if (IS_ERR(handle)) {
- status = PTR_ERR(handle);
- mlog_errno(status);
- goto bail_unlock;
+ if ((attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+ (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
+ credits = OCFS2_INODE_UPDATE_CREDITS;
+ if (attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid
+ && OCFS2_HAS_RO_COMPAT_FEATURE(sb,
+ OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
+ oinfo = sb_dqinfo(sb, USRQUOTA)->dqi_priv;
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto bail_unlock;
+ credits += ocfs2_calc_qinit_credits(sb, USRQUOTA) +
+ ocfs2_calc_qdel_credits(sb, USRQUOTA);
+ locked[USRQUOTA] = 1;
+ }
+ if (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid
+ && OCFS2_HAS_RO_COMPAT_FEATURE(sb,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) {
+ oinfo = sb_dqinfo(sb, GRPQUOTA)->dqi_priv;
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto bail_unlock;
+ credits += ocfs2_calc_qinit_credits(sb, GRPQUOTA) +
+ ocfs2_calc_qdel_credits(sb, GRPQUOTA);
+ locked[GRPQUOTA] = 1;
+ }
+ handle = ocfs2_start_trans(osb, credits);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto bail_unlock;
+ }
+ status = vfs_dq_transfer(inode, attr) ? -EDQUOT : 0;
+ if (status < 0)
+ goto bail_commit;
+ } else {
+ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto bail_unlock;
+ }
}
/*
@@ -982,6 +1030,12 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
bail_commit:
ocfs2_commit_trans(osb, handle);
bail_unlock:
+ for (qtype = 0; qtype < MAXQUOTAS; qtype++) {
+ if (!locked[qtype])
+ continue;
+ oinfo = sb_dqinfo(sb, qtype)->dqi_priv;
+ ocfs2_unlock_global_qf(oinfo, 1);
+ }
ocfs2_inode_unlock(inode, 1);
bail_unlock_rw:
if (size_change)
@@ -989,6 +1043,12 @@ bail_unlock_rw:
bail:
brelse(bh);
+ if (!status && attr->ia_valid & ATTR_MODE) {
+ status = ocfs2_acl_chmod(inode);
+ if (status < 0)
+ mlog_errno(status);
+ }
+
mlog_exit(status);
return status;
}
@@ -1035,7 +1095,7 @@ int ocfs2_permission(struct inode *inode, int mask)
goto out;
}
- ret = generic_permission(inode, mask, NULL);
+ ret = generic_permission(inode, mask, ocfs2_check_acl);
ocfs2_inode_unlock(inode, 0);
out:
@@ -1061,8 +1121,8 @@ static int __ocfs2_write_remove_suid(struct inode *inode,
goto out;
}
- ret = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto out_trans;
@@ -1128,9 +1188,8 @@ static int ocfs2_write_remove_suid(struct inode *inode)
{
int ret;
struct buffer_head *bh = NULL;
- struct ocfs2_inode_info *oi = OCFS2_I(inode);
- ret = ocfs2_read_block(inode, oi->ip_blkno, &bh);
+ ret = ocfs2_read_inode_block(inode, &bh);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -1156,8 +1215,7 @@ static int ocfs2_allocate_unwritten_extents(struct inode *inode,
struct buffer_head *di_bh = NULL;
if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
- ret = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno,
- &di_bh);
+ ret = ocfs2_read_inode_block(inode, &di_bh);
if (ret) {
mlog_errno(ret);
goto out;
@@ -1226,83 +1284,6 @@ out:
return ret;
}
-static int __ocfs2_remove_inode_range(struct inode *inode,
- struct buffer_head *di_bh,
- u32 cpos, u32 phys_cpos, u32 len,
- struct ocfs2_cached_dealloc_ctxt *dealloc)
-{
- int ret;
- u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct inode *tl_inode = osb->osb_tl_inode;
- handle_t *handle;
- struct ocfs2_alloc_context *meta_ac = NULL;
- struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
- struct ocfs2_extent_tree et;
-
- ocfs2_init_dinode_extent_tree(&et, inode, di_bh);
-
- ret = ocfs2_lock_allocators(inode, &et, 0, 1, NULL, &meta_ac);
- if (ret) {
- mlog_errno(ret);
- return ret;
- }
-
- mutex_lock(&tl_inode->i_mutex);
-
- if (ocfs2_truncate_log_needs_flush(osb)) {
- ret = __ocfs2_flush_truncate_log(osb);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
- }
-
- handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_remove_extent(inode, &et, cpos, len, handle, meta_ac,
- dealloc);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
-
- OCFS2_I(inode)->ip_clusters -= len;
- di->i_clusters = cpu_to_le32(OCFS2_I(inode)->ip_clusters);
-
- ret = ocfs2_journal_dirty(handle, di_bh);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
-
- ret = ocfs2_truncate_log_append(osb, handle, phys_blkno, len);
- if (ret)
- mlog_errno(ret);
-
-out_commit:
- ocfs2_commit_trans(osb, handle);
-out:
- mutex_unlock(&tl_inode->i_mutex);
-
- if (meta_ac)
- ocfs2_free_alloc_context(meta_ac);
-
- return ret;
-}
-
/*
* Truncate a byte range, avoiding pages within partial clusters. This
* preserves those pages for the zeroing code to write to.
@@ -1402,7 +1383,9 @@ static int ocfs2_remove_inode_range(struct inode *inode,
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_cached_dealloc_ctxt dealloc;
struct address_space *mapping = inode->i_mapping;
+ struct ocfs2_extent_tree et;
+ ocfs2_init_dinode_extent_tree(&et, inode, di_bh);
ocfs2_init_dealloc_ctxt(&dealloc);
if (byte_len == 0)
@@ -1458,9 +1441,9 @@ static int ocfs2_remove_inode_range(struct inode *inode,
/* Only do work for non-holes */
if (phys_cpos != 0) {
- ret = __ocfs2_remove_inode_range(inode, di_bh, cpos,
- phys_cpos, alloc_size,
- &dealloc);
+ ret = ocfs2_remove_btree_range(inode, &et, cpos,
+ phys_cpos, alloc_size,
+ &dealloc);
if (ret) {
mlog_errno(ret);
goto out;
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index e92382cbca5f..172f9fbc9fc7 100644
--- a/fs/ocfs2/file.h
+++ b/fs/ocfs2/file.h
@@ -51,6 +51,9 @@ int ocfs2_add_inode_data(struct ocfs2_super *osb,
struct ocfs2_alloc_context *data_ac,
struct ocfs2_alloc_context *meta_ac,
enum ocfs2_alloc_restarted *reason_ret);
+int ocfs2_simple_size_update(struct inode *inode,
+ struct buffer_head *di_bh,
+ u64 new_i_size);
int ocfs2_extend_no_holes(struct inode *inode, u64 new_i_size,
u64 zero_to);
int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 7aa00d511874..229e707bc050 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -28,6 +28,7 @@
#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/pagemap.h>
+#include <linux/quotaops.h>
#include <asm/byteorder.h>
@@ -37,6 +38,7 @@
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "extent_map.h"
#include "file.h"
@@ -214,12 +216,11 @@ static int ocfs2_init_locked_inode(struct inode *inode, void *opaque)
return 0;
}
-int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
- int create_ino)
+void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
+ int create_ino)
{
struct super_block *sb;
struct ocfs2_super *osb;
- int status = -EINVAL;
int use_plocks = 1;
mlog_entry("(0x%p, size:%llu)\n", inode,
@@ -232,25 +233,17 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
ocfs2_mount_local(osb) || !ocfs2_stack_supports_plocks())
use_plocks = 0;
- /* this means that read_inode cannot create a superblock inode
- * today. change if needed. */
- if (!OCFS2_IS_VALID_DINODE(fe) ||
- !(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
- mlog(0, "Invalid dinode: i_ino=%lu, i_blkno=%llu, "
- "signature = %.*s, flags = 0x%x\n",
- inode->i_ino,
- (unsigned long long)le64_to_cpu(fe->i_blkno), 7,
- fe->i_signature, le32_to_cpu(fe->i_flags));
- goto bail;
- }
+ /*
+ * These have all been checked by ocfs2_read_inode_block() or set
+ * by ocfs2_mknod_locked(), so a failure is a code bug.
+ */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(fe)); /* This means that read_inode
+ cannot create a superblock
+ inode today. change if
+ that is needed. */
+ BUG_ON(!(fe->i_flags & cpu_to_le32(OCFS2_VALID_FL)));
+ BUG_ON(le32_to_cpu(fe->i_fs_generation) != osb->fs_generation);
- if (le32_to_cpu(fe->i_fs_generation) != osb->fs_generation) {
- mlog(ML_ERROR, "file entry generation does not match "
- "superblock! osb->fs_generation=%x, "
- "fe->i_fs_generation=%x\n",
- osb->fs_generation, le32_to_cpu(fe->i_fs_generation));
- goto bail;
- }
OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
@@ -284,14 +277,18 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
inode->i_nlink = le16_to_cpu(fe->i_links_count);
- if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL))
+ if (fe->i_flags & cpu_to_le32(OCFS2_SYSTEM_FL)) {
OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SYSTEM_FILE;
+ inode->i_flags |= S_NOQUOTA;
+ }
if (fe->i_flags & cpu_to_le32(OCFS2_LOCAL_ALLOC_FL)) {
OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
mlog(0, "local alloc inode: i_ino=%lu\n", inode->i_ino);
} else if (fe->i_flags & cpu_to_le32(OCFS2_BITMAP_FL)) {
OCFS2_I(inode)->ip_flags |= OCFS2_INODE_BITMAP;
+ } else if (fe->i_flags & cpu_to_le32(OCFS2_QUOTA_FL)) {
+ inode->i_flags |= S_NOQUOTA;
} else if (fe->i_flags & cpu_to_le32(OCFS2_SUPER_BLOCK_FL)) {
mlog(0, "superblock inode: i_ino=%lu\n", inode->i_ino);
/* we can't actually hit this as read_inode can't
@@ -354,10 +351,7 @@ int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
ocfs2_set_inode_flags(inode);
- status = 0;
-bail:
- mlog_exit(status);
- return status;
+ mlog_exit_void();
}
static int ocfs2_read_locked_inode(struct inode *inode,
@@ -460,11 +454,14 @@ static int ocfs2_read_locked_inode(struct inode *inode,
}
}
- if (can_lock)
- status = ocfs2_read_blocks(inode, args->fi_blkno, 1, &bh,
- OCFS2_BH_IGNORE_CACHE);
- else
+ if (can_lock) {
+ status = ocfs2_read_inode_block_full(inode, &bh,
+ OCFS2_BH_IGNORE_CACHE);
+ } else {
status = ocfs2_read_blocks_sync(osb, args->fi_blkno, 1, &bh);
+ if (!status)
+ status = ocfs2_validate_inode_block(osb->sb, bh);
+ }
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -472,12 +469,6 @@ static int ocfs2_read_locked_inode(struct inode *inode,
status = -EINVAL;
fe = (struct ocfs2_dinode *) bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- mlog(0, "Invalid dinode #%llu: signature = %.*s\n",
- (unsigned long long)args->fi_blkno, 7,
- fe->i_signature);
- goto bail;
- }
/*
* This is a code bug. Right now the caller needs to
@@ -491,10 +482,9 @@ static int ocfs2_read_locked_inode(struct inode *inode,
if (S_ISCHR(le16_to_cpu(fe->i_mode)) ||
S_ISBLK(le16_to_cpu(fe->i_mode)))
- inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
+ inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
- if (ocfs2_populate_inode(inode, fe, 0) < 0)
- goto bail;
+ ocfs2_populate_inode(inode, fe, 0);
BUG_ON(args->fi_blkno != le64_to_cpu(fe->i_blkno));
@@ -547,8 +537,8 @@ static int ocfs2_truncate_for_delete(struct ocfs2_super *osb,
goto out;
}
- status = ocfs2_journal_access(handle, inode, fe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, inode, fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto out;
@@ -615,7 +605,8 @@ static int ocfs2_remove_inode(struct inode *inode,
goto bail;
}
- handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS);
+ handle = ocfs2_start_trans(osb, OCFS2_DELETE_INODE_CREDITS +
+ ocfs2_quota_trans_credits(inode->i_sb));
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
mlog_errno(status);
@@ -630,8 +621,8 @@ static int ocfs2_remove_inode(struct inode *inode,
}
/* set the inodes dtime */
- status = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, inode, di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail_commit;
@@ -647,6 +638,7 @@ static int ocfs2_remove_inode(struct inode *inode,
}
ocfs2_remove_from_cache(inode, di_bh);
+ vfs_dq_free_inode(inode);
status = ocfs2_free_dinode(handle, inode_alloc_inode,
inode_alloc_bh, di);
@@ -929,7 +921,10 @@ void ocfs2_delete_inode(struct inode *inode)
mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
- if (is_bad_inode(inode)) {
+ /* When we fail in read_inode() we mark inode as bad. The second test
+ * catches the case when inode allocation fails before allocating
+ * a block for inode. */
+ if (is_bad_inode(inode) || !OCFS2_I(inode)->ip_blkno) {
mlog(0, "Skipping delete of bad inode\n");
goto bail;
}
@@ -1195,8 +1190,8 @@ int ocfs2_mark_inode_dirty(handle_t *handle,
mlog_entry("(inode %llu)\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno);
- status = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -1264,3 +1259,89 @@ void ocfs2_refresh_inode(struct inode *inode,
spin_unlock(&OCFS2_I(inode)->ip_lock);
}
+
+int ocfs2_validate_inode_block(struct super_block *sb,
+ struct buffer_head *bh)
+{
+ int rc;
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
+
+ mlog(0, "Validating dinode %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check);
+ if (rc) {
+ mlog(ML_ERROR, "Checksum failed for dinode %llu\n",
+ (unsigned long long)bh->b_blocknr);
+ goto bail;
+ }
+
+ /*
+ * Errors after here are fatal.
+ */
+
+ rc = -EINVAL;
+
+ if (!OCFS2_IS_VALID_DINODE(di)) {
+ ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n",
+ (unsigned long long)bh->b_blocknr, 7,
+ di->i_signature);
+ goto bail;
+ }
+
+ if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) {
+ ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n",
+ (unsigned long long)bh->b_blocknr,
+ (unsigned long long)le64_to_cpu(di->i_blkno));
+ goto bail;
+ }
+
+ if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
+ ocfs2_error(sb,
+ "Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
+ (unsigned long long)bh->b_blocknr);
+ goto bail;
+ }
+
+ if (le32_to_cpu(di->i_fs_generation) !=
+ OCFS2_SB(sb)->fs_generation) {
+ ocfs2_error(sb,
+ "Invalid dinode #%llu: fs_generation is %u\n",
+ (unsigned long long)bh->b_blocknr,
+ le32_to_cpu(di->i_fs_generation));
+ goto bail;
+ }
+
+ rc = 0;
+
+bail:
+ return rc;
+}
+
+int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh,
+ int flags)
+{
+ int rc;
+ struct buffer_head *tmp = *bh;
+
+ rc = ocfs2_read_blocks(inode, OCFS2_I(inode)->ip_blkno, 1, &tmp,
+ flags, ocfs2_validate_inode_block);
+
+ /* If ocfs2_read_blocks() got us a new bh, pass it up. */
+ if (!rc && !*bh)
+ *bh = tmp;
+
+ return rc;
+}
+
+int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh)
+{
+ return ocfs2_read_inode_block_full(inode, bh, 0);
+}
diff --git a/fs/ocfs2/inode.h b/fs/ocfs2/inode.h
index 2f37af9bcc4a..eb3c302b38d3 100644
--- a/fs/ocfs2/inode.h
+++ b/fs/ocfs2/inode.h
@@ -128,8 +128,8 @@ struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, unsigned flags,
int sysfile_type);
int ocfs2_inode_init_private(struct inode *inode);
int ocfs2_inode_revalidate(struct dentry *dentry);
-int ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
- int create_ino);
+void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
+ int create_ino);
void ocfs2_read_inode(struct inode *inode);
void ocfs2_read_inode2(struct inode *inode, void *opaque);
ssize_t ocfs2_rw_direct(int rw, struct file *filp, char *buf,
@@ -142,6 +142,8 @@ int ocfs2_mark_inode_dirty(handle_t *handle,
struct buffer_head *bh);
int ocfs2_aio_read(struct file *file, struct kiocb *req, struct iocb *iocb);
int ocfs2_aio_write(struct file *file, struct kiocb *req, struct iocb *iocb);
+struct buffer_head *ocfs2_bread(struct inode *inode,
+ int block, int *err, int reada);
void ocfs2_set_inode_flags(struct inode *inode);
void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi);
@@ -153,4 +155,16 @@ static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode)
return (blkcnt_t)(OCFS2_I(inode)->ip_clusters << c_to_s_bits);
}
+/* Validate that a bh contains a valid inode */
+int ocfs2_validate_inode_block(struct super_block *sb,
+ struct buffer_head *bh);
+/*
+ * Read an inode block into *bh. If *bh is NULL, a bh will be allocated.
+ * This is a cached read. The inode will be validated with
+ * ocfs2_validate_inode_block().
+ */
+int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh);
+/* The same, but can be passed OCFS2_BH_* flags */
+int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh,
+ int flags);
#endif /* OCFS2_INODE_H */
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 99fe9d584f3c..57d7d25a2b9a 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -35,6 +35,7 @@
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dir.h"
#include "dlmglue.h"
#include "extent_map.h"
@@ -45,6 +46,7 @@
#include "slot_map.h"
#include "super.h"
#include "sysfile.h"
+#include "quota.h"
#include "buffer_head_io.h"
@@ -52,10 +54,10 @@ DEFINE_SPINLOCK(trans_inc_lock);
static int ocfs2_force_read_journal(struct inode *inode);
static int ocfs2_recover_node(struct ocfs2_super *osb,
- int node_num);
+ int node_num, int slot_num);
static int __ocfs2_recovery_thread(void *arg);
static int ocfs2_commit_cache(struct ocfs2_super *osb);
-static int ocfs2_wait_on_mount(struct ocfs2_super *osb);
+static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota);
static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb,
int dirty, int replayed);
static int ocfs2_trylock_journal(struct ocfs2_super *osb,
@@ -64,6 +66,17 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
int slot);
static int ocfs2_commit_thread(void *arg);
+static inline int ocfs2_wait_on_mount(struct ocfs2_super *osb)
+{
+ return __ocfs2_wait_on_mount(osb, 0);
+}
+
+static inline int ocfs2_wait_on_quotas(struct ocfs2_super *osb)
+{
+ return __ocfs2_wait_on_mount(osb, 1);
+}
+
+
/*
* The recovery_list is a simple linked list of node numbers to recover.
@@ -256,11 +269,9 @@ handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs)
BUG_ON(osb->journal->j_state == OCFS2_JOURNAL_FREE);
BUG_ON(max_buffs <= 0);
- /* JBD might support this, but our journalling code doesn't yet. */
- if (journal_current_handle()) {
- mlog(ML_ERROR, "Recursive transaction attempted!\n");
- BUG();
- }
+ /* Nested transaction? Just return the handle... */
+ if (journal_current_handle())
+ return jbd2_journal_start(journal, max_buffs);
down_read(&osb->journal->j_trans_barrier);
@@ -285,16 +296,18 @@ handle_t *ocfs2_start_trans(struct ocfs2_super *osb, int max_buffs)
int ocfs2_commit_trans(struct ocfs2_super *osb,
handle_t *handle)
{
- int ret;
+ int ret, nested;
struct ocfs2_journal *journal = osb->journal;
BUG_ON(!handle);
+ nested = handle->h_ref > 1;
ret = jbd2_journal_stop(handle);
if (ret < 0)
mlog_errno(ret);
- up_read(&journal->j_trans_barrier);
+ if (!nested)
+ up_read(&journal->j_trans_barrier);
return ret;
}
@@ -357,10 +370,137 @@ bail:
return status;
}
-int ocfs2_journal_access(handle_t *handle,
- struct inode *inode,
- struct buffer_head *bh,
- int type)
+struct ocfs2_triggers {
+ struct jbd2_buffer_trigger_type ot_triggers;
+ int ot_offset;
+};
+
+static inline struct ocfs2_triggers *to_ocfs2_trigger(struct jbd2_buffer_trigger_type *triggers)
+{
+ return container_of(triggers, struct ocfs2_triggers, ot_triggers);
+}
+
+static void ocfs2_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
+ struct buffer_head *bh,
+ void *data, size_t size)
+{
+ struct ocfs2_triggers *ot = to_ocfs2_trigger(triggers);
+
+ /*
+ * We aren't guaranteed to have the superblock here, so we
+ * must unconditionally compute the ecc data.
+ * __ocfs2_journal_access() will only set the triggers if
+ * metaecc is enabled.
+ */
+ ocfs2_block_check_compute(data, size, data + ot->ot_offset);
+}
+
+/*
+ * Quota blocks have their own trigger because the struct ocfs2_block_check
+ * offset depends on the blocksize.
+ */
+static void ocfs2_dq_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
+ struct buffer_head *bh,
+ void *data, size_t size)
+{
+ struct ocfs2_disk_dqtrailer *dqt =
+ ocfs2_block_dqtrailer(size, data);
+
+ /*
+ * We aren't guaranteed to have the superblock here, so we
+ * must unconditionally compute the ecc data.
+ * __ocfs2_journal_access() will only set the triggers if
+ * metaecc is enabled.
+ */
+ ocfs2_block_check_compute(data, size, &dqt->dq_check);
+}
+
+/*
+ * Directory blocks also have their own trigger because the
+ * struct ocfs2_block_check offset depends on the blocksize.
+ */
+static void ocfs2_db_commit_trigger(struct jbd2_buffer_trigger_type *triggers,
+ struct buffer_head *bh,
+ void *data, size_t size)
+{
+ struct ocfs2_dir_block_trailer *trailer =
+ ocfs2_dir_trailer_from_size(size, data);
+
+ /*
+ * We aren't guaranteed to have the superblock here, so we
+ * must unconditionally compute the ecc data.
+ * __ocfs2_journal_access() will only set the triggers if
+ * metaecc is enabled.
+ */
+ ocfs2_block_check_compute(data, size, &trailer->db_check);
+}
+
+static void ocfs2_abort_trigger(struct jbd2_buffer_trigger_type *triggers,
+ struct buffer_head *bh)
+{
+ mlog(ML_ERROR,
+ "ocfs2_abort_trigger called by JBD2. bh = 0x%lx, "
+ "bh->b_blocknr = %llu\n",
+ (unsigned long)bh,
+ (unsigned long long)bh->b_blocknr);
+
+ /* We aren't guaranteed to have the superblock here - but if we
+ * don't, it'll just crash. */
+ ocfs2_error(bh->b_assoc_map->host->i_sb,
+ "JBD2 has aborted our journal, ocfs2 cannot continue\n");
+}
+
+static struct ocfs2_triggers di_triggers = {
+ .ot_triggers = {
+ .t_commit = ocfs2_commit_trigger,
+ .t_abort = ocfs2_abort_trigger,
+ },
+ .ot_offset = offsetof(struct ocfs2_dinode, i_check),
+};
+
+static struct ocfs2_triggers eb_triggers = {
+ .ot_triggers = {
+ .t_commit = ocfs2_commit_trigger,
+ .t_abort = ocfs2_abort_trigger,
+ },
+ .ot_offset = offsetof(struct ocfs2_extent_block, h_check),
+};
+
+static struct ocfs2_triggers gd_triggers = {
+ .ot_triggers = {
+ .t_commit = ocfs2_commit_trigger,
+ .t_abort = ocfs2_abort_trigger,
+ },
+ .ot_offset = offsetof(struct ocfs2_group_desc, bg_check),
+};
+
+static struct ocfs2_triggers db_triggers = {
+ .ot_triggers = {
+ .t_commit = ocfs2_db_commit_trigger,
+ .t_abort = ocfs2_abort_trigger,
+ },
+};
+
+static struct ocfs2_triggers xb_triggers = {
+ .ot_triggers = {
+ .t_commit = ocfs2_commit_trigger,
+ .t_abort = ocfs2_abort_trigger,
+ },
+ .ot_offset = offsetof(struct ocfs2_xattr_block, xb_check),
+};
+
+static struct ocfs2_triggers dq_triggers = {
+ .ot_triggers = {
+ .t_commit = ocfs2_dq_commit_trigger,
+ .t_abort = ocfs2_abort_trigger,
+ },
+};
+
+static int __ocfs2_journal_access(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *bh,
+ struct ocfs2_triggers *triggers,
+ int type)
{
int status;
@@ -406,6 +546,8 @@ int ocfs2_journal_access(handle_t *handle,
status = -EINVAL;
mlog(ML_ERROR, "Uknown access type!\n");
}
+ if (!status && ocfs2_meta_ecc(OCFS2_SB(inode->i_sb)) && triggers)
+ jbd2_journal_set_triggers(bh, &triggers->ot_triggers);
mutex_unlock(&OCFS2_I(inode)->ip_io_mutex);
if (status < 0)
@@ -416,6 +558,54 @@ int ocfs2_journal_access(handle_t *handle,
return status;
}
+int ocfs2_journal_access_di(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type)
+{
+ return __ocfs2_journal_access(handle, inode, bh, &di_triggers,
+ type);
+}
+
+int ocfs2_journal_access_eb(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type)
+{
+ return __ocfs2_journal_access(handle, inode, bh, &eb_triggers,
+ type);
+}
+
+int ocfs2_journal_access_gd(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type)
+{
+ return __ocfs2_journal_access(handle, inode, bh, &gd_triggers,
+ type);
+}
+
+int ocfs2_journal_access_db(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type)
+{
+ return __ocfs2_journal_access(handle, inode, bh, &db_triggers,
+ type);
+}
+
+int ocfs2_journal_access_xb(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type)
+{
+ return __ocfs2_journal_access(handle, inode, bh, &xb_triggers,
+ type);
+}
+
+int ocfs2_journal_access_dq(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type)
+{
+ return __ocfs2_journal_access(handle, inode, bh, &dq_triggers,
+ type);
+}
+
+int ocfs2_journal_access(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type)
+{
+ return __ocfs2_journal_access(handle, inode, bh, NULL, type);
+}
+
int ocfs2_journal_dirty(handle_t *handle,
struct buffer_head *bh)
{
@@ -434,20 +624,6 @@ int ocfs2_journal_dirty(handle_t *handle,
return status;
}
-#ifdef CONFIG_OCFS2_COMPAT_JBD
-int ocfs2_journal_dirty_data(handle_t *handle,
- struct buffer_head *bh)
-{
- int err = journal_dirty_data(handle, bh);
- if (err)
- mlog_errno(err);
- /* TODO: When we can handle it, abort the handle and go RO on
- * error here. */
-
- return err;
-}
-#endif
-
#define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD2_DEFAULT_MAX_COMMIT_AGE)
void ocfs2_set_journal_params(struct ocfs2_super *osb)
@@ -587,17 +763,11 @@ static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb,
mlog_entry_void();
fe = (struct ocfs2_dinode *)bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- /* This is called from startup/shutdown which will
- * handle the errors in a specific manner, so no need
- * to call ocfs2_error() here. */
- mlog(ML_ERROR, "Journal dinode %llu has invalid "
- "signature: %.*s",
- (unsigned long long)le64_to_cpu(fe->i_blkno), 7,
- fe->i_signature);
- status = -EIO;
- goto out;
- }
+
+ /* The journal bh on the osb always comes from ocfs2_journal_init()
+ * and was validated there inside ocfs2_inode_lock_full(). It's a
+ * code bug if we mess it up. */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
flags = le32_to_cpu(fe->id1.journal1.ij_flags);
if (dirty)
@@ -609,11 +779,11 @@ static int ocfs2_journal_toggle_dirty(struct ocfs2_super *osb,
if (replayed)
ocfs2_bump_recovery_generation(fe);
+ ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check);
status = ocfs2_write_block(osb, bh, journal->j_inode);
if (status < 0)
mlog_errno(status);
-out:
mlog_exit(status);
return status;
}
@@ -878,6 +1048,7 @@ struct ocfs2_la_recovery_item {
int lri_slot;
struct ocfs2_dinode *lri_la_dinode;
struct ocfs2_dinode *lri_tl_dinode;
+ struct ocfs2_quota_recovery *lri_qrec;
};
/* Does the second half of the recovery process. By this point, the
@@ -898,6 +1069,7 @@ void ocfs2_complete_recovery(struct work_struct *work)
struct ocfs2_super *osb = journal->j_osb;
struct ocfs2_dinode *la_dinode, *tl_dinode;
struct ocfs2_la_recovery_item *item, *n;
+ struct ocfs2_quota_recovery *qrec;
LIST_HEAD(tmp_la_list);
mlog_entry_void();
@@ -913,6 +1085,8 @@ void ocfs2_complete_recovery(struct work_struct *work)
mlog(0, "Complete recovery for slot %d\n", item->lri_slot);
+ ocfs2_wait_on_quotas(osb);
+
la_dinode = item->lri_la_dinode;
if (la_dinode) {
mlog(0, "Clean up local alloc %llu\n",
@@ -943,6 +1117,16 @@ void ocfs2_complete_recovery(struct work_struct *work)
if (ret < 0)
mlog_errno(ret);
+ qrec = item->lri_qrec;
+ if (qrec) {
+ mlog(0, "Recovering quota files");
+ ret = ocfs2_finish_quota_recovery(osb, qrec,
+ item->lri_slot);
+ if (ret < 0)
+ mlog_errno(ret);
+ /* Recovery info is already freed now */
+ }
+
kfree(item);
}
@@ -956,7 +1140,8 @@ void ocfs2_complete_recovery(struct work_struct *work)
static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal,
int slot_num,
struct ocfs2_dinode *la_dinode,
- struct ocfs2_dinode *tl_dinode)
+ struct ocfs2_dinode *tl_dinode,
+ struct ocfs2_quota_recovery *qrec)
{
struct ocfs2_la_recovery_item *item;
@@ -971,6 +1156,9 @@ static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal,
if (tl_dinode)
kfree(tl_dinode);
+ if (qrec)
+ ocfs2_free_quota_recovery(qrec);
+
mlog_errno(-ENOMEM);
return;
}
@@ -979,6 +1167,7 @@ static void ocfs2_queue_recovery_completion(struct ocfs2_journal *journal,
item->lri_la_dinode = la_dinode;
item->lri_slot = slot_num;
item->lri_tl_dinode = tl_dinode;
+ item->lri_qrec = qrec;
spin_lock(&journal->j_lock);
list_add_tail(&item->lri_list, &journal->j_la_cleanups);
@@ -998,6 +1187,7 @@ void ocfs2_complete_mount_recovery(struct ocfs2_super *osb)
ocfs2_queue_recovery_completion(journal,
osb->slot_num,
osb->local_alloc_copy,
+ NULL,
NULL);
ocfs2_schedule_truncate_log_flush(osb, 0);
@@ -1006,11 +1196,26 @@ void ocfs2_complete_mount_recovery(struct ocfs2_super *osb)
}
}
+void ocfs2_complete_quota_recovery(struct ocfs2_super *osb)
+{
+ if (osb->quota_rec) {
+ ocfs2_queue_recovery_completion(osb->journal,
+ osb->slot_num,
+ NULL,
+ NULL,
+ osb->quota_rec);
+ osb->quota_rec = NULL;
+ }
+}
+
static int __ocfs2_recovery_thread(void *arg)
{
- int status, node_num;
+ int status, node_num, slot_num;
struct ocfs2_super *osb = arg;
struct ocfs2_recovery_map *rm = osb->recovery_map;
+ int *rm_quota = NULL;
+ int rm_quota_used = 0, i;
+ struct ocfs2_quota_recovery *qrec;
mlog_entry_void();
@@ -1019,6 +1224,11 @@ static int __ocfs2_recovery_thread(void *arg)
goto bail;
}
+ rm_quota = kzalloc(osb->max_slots * sizeof(int), GFP_NOFS);
+ if (!rm_quota) {
+ status = -ENOMEM;
+ goto bail;
+ }
restart:
status = ocfs2_super_lock(osb, 1);
if (status < 0) {
@@ -1032,8 +1242,28 @@ restart:
* clear it until ocfs2_recover_node() has succeeded. */
node_num = rm->rm_entries[0];
spin_unlock(&osb->osb_lock);
+ mlog(0, "checking node %d\n", node_num);
+ slot_num = ocfs2_node_num_to_slot(osb, node_num);
+ if (slot_num == -ENOENT) {
+ status = 0;
+ mlog(0, "no slot for this node, so no recovery"
+ "required.\n");
+ goto skip_recovery;
+ }
+ mlog(0, "node %d was using slot %d\n", node_num, slot_num);
- status = ocfs2_recover_node(osb, node_num);
+ /* It is a bit subtle with quota recovery. We cannot do it
+ * immediately because we have to obtain cluster locks from
+ * quota files and we also don't want to just skip it because
+ * then quota usage would be out of sync until some node takes
+ * the slot. So we remember which nodes need quota recovery
+ * and when everything else is done, we recover quotas. */
+ for (i = 0; i < rm_quota_used && rm_quota[i] != slot_num; i++);
+ if (i == rm_quota_used)
+ rm_quota[rm_quota_used++] = slot_num;
+
+ status = ocfs2_recover_node(osb, node_num, slot_num);
+skip_recovery:
if (!status) {
ocfs2_recovery_map_clear(osb, node_num);
} else {
@@ -1055,13 +1285,27 @@ restart:
if (status < 0)
mlog_errno(status);
+ /* Now it is right time to recover quotas... We have to do this under
+ * superblock lock so that noone can start using the slot (and crash)
+ * before we recover it */
+ for (i = 0; i < rm_quota_used; i++) {
+ qrec = ocfs2_begin_quota_recovery(osb, rm_quota[i]);
+ if (IS_ERR(qrec)) {
+ status = PTR_ERR(qrec);
+ mlog_errno(status);
+ continue;
+ }
+ ocfs2_queue_recovery_completion(osb->journal, rm_quota[i],
+ NULL, NULL, qrec);
+ }
+
ocfs2_super_unlock(osb, 1);
/* We always run recovery on our own orphan dir - the dead
* node(s) may have disallowd a previos inode delete. Re-processing
* is therefore required. */
ocfs2_queue_recovery_completion(osb->journal, osb->slot_num, NULL,
- NULL);
+ NULL, NULL);
bail:
mutex_lock(&osb->recovery_lock);
@@ -1076,6 +1320,9 @@ bail:
mutex_unlock(&osb->recovery_lock);
+ if (rm_quota)
+ kfree(rm_quota);
+
mlog_exit(status);
/* no one is callint kthread_stop() for us so the kthread() api
* requires that we call do_exit(). And it isn't exported, but
@@ -1135,8 +1382,7 @@ static int ocfs2_read_journal_inode(struct ocfs2_super *osb,
}
SET_INODE_JOURNAL(inode);
- status = ocfs2_read_blocks(inode, OCFS2_I(inode)->ip_blkno, 1, bh,
- OCFS2_BH_IGNORE_CACHE);
+ status = ocfs2_read_inode_block_full(inode, bh, OCFS2_BH_IGNORE_CACHE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1268,6 +1514,7 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
osb->slot_recovery_generations[slot_num] =
ocfs2_get_recovery_generation(fe);
+ ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check);
status = ocfs2_write_block(osb, bh, inode);
if (status < 0)
mlog_errno(status);
@@ -1304,31 +1551,19 @@ done:
* far less concerning.
*/
static int ocfs2_recover_node(struct ocfs2_super *osb,
- int node_num)
+ int node_num, int slot_num)
{
int status = 0;
- int slot_num;
struct ocfs2_dinode *la_copy = NULL;
struct ocfs2_dinode *tl_copy = NULL;
- mlog_entry("(node_num=%d, osb->node_num = %d)\n",
- node_num, osb->node_num);
-
- mlog(0, "checking node %d\n", node_num);
+ mlog_entry("(node_num=%d, slot_num=%d, osb->node_num = %d)\n",
+ node_num, slot_num, osb->node_num);
/* Should not ever be called to recover ourselves -- in that
* case we should've called ocfs2_journal_load instead. */
BUG_ON(osb->node_num == node_num);
- slot_num = ocfs2_node_num_to_slot(osb, node_num);
- if (slot_num == -ENOENT) {
- status = 0;
- mlog(0, "no slot for this node, so no recovery required.\n");
- goto done;
- }
-
- mlog(0, "node %d was using slot %d\n", node_num, slot_num);
-
status = ocfs2_replay_journal(osb, node_num, slot_num);
if (status < 0) {
if (status == -EBUSY) {
@@ -1364,7 +1599,7 @@ static int ocfs2_recover_node(struct ocfs2_super *osb,
/* This will kfree the memory pointed to by la_copy and tl_copy */
ocfs2_queue_recovery_completion(osb->journal, slot_num, la_copy,
- tl_copy);
+ tl_copy, NULL);
status = 0;
done:
@@ -1659,13 +1894,14 @@ static int ocfs2_recover_orphans(struct ocfs2_super *osb,
return ret;
}
-static int ocfs2_wait_on_mount(struct ocfs2_super *osb)
+static int __ocfs2_wait_on_mount(struct ocfs2_super *osb, int quota)
{
/* This check is good because ocfs2 will wait on our recovery
* thread before changing it to something other than MOUNTED
* or DISABLED. */
wait_event(osb->osb_mount_event,
- atomic_read(&osb->vol_state) == VOLUME_MOUNTED ||
+ (!quota && atomic_read(&osb->vol_state) == VOLUME_MOUNTED) ||
+ atomic_read(&osb->vol_state) == VOLUME_MOUNTED_QUOTAS ||
atomic_read(&osb->vol_state) == VOLUME_DISABLED);
/* If there's an error on mount, then we may never get to the
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index d4d14e9a3cea..3c3532e1307c 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -27,12 +27,7 @@
#define OCFS2_JOURNAL_H
#include <linux/fs.h>
-#ifndef CONFIG_OCFS2_COMPAT_JBD
-# include <linux/jbd2.h>
-#else
-# include <linux/jbd.h>
-# include "ocfs2_jbd_compat.h"
-#endif
+#include <linux/jbd2.h>
enum ocfs2_journal_state {
OCFS2_JOURNAL_FREE = 0,
@@ -173,6 +168,7 @@ void ocfs2_recovery_thread(struct ocfs2_super *osb,
int node_num);
int ocfs2_mark_dead_nodes(struct ocfs2_super *osb);
void ocfs2_complete_mount_recovery(struct ocfs2_super *osb);
+void ocfs2_complete_quota_recovery(struct ocfs2_super *osb);
static inline void ocfs2_start_checkpoint(struct ocfs2_super *osb)
{
@@ -216,9 +212,12 @@ static inline void ocfs2_checkpoint_inode(struct inode *inode)
* ocfs2_extend_trans - Extend a handle by nblocks credits. This may
* commit the handle to disk in the process, but will
* not release any locks taken during the transaction.
- * ocfs2_journal_access - Notify the handle that we want to journal this
+ * ocfs2_journal_access* - Notify the handle that we want to journal this
* buffer. Will have to call ocfs2_journal_dirty once
* we've actually dirtied it. Type is one of . or .
+ * Always call the specific flavor of
+ * ocfs2_journal_access_*() unless you intend to
+ * manage the checksum by hand.
* ocfs2_journal_dirty - Mark a journalled buffer as having dirty data.
* ocfs2_jbd2_file_inode - Mark an inode so that its data goes out before
* the current handle commits.
@@ -248,10 +247,29 @@ int ocfs2_extend_trans(handle_t *handle, int nblocks);
#define OCFS2_JOURNAL_ACCESS_WRITE 1
#define OCFS2_JOURNAL_ACCESS_UNDO 2
-int ocfs2_journal_access(handle_t *handle,
- struct inode *inode,
- struct buffer_head *bh,
- int type);
+
+/* ocfs2_inode */
+int ocfs2_journal_access_di(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* ocfs2_extent_block */
+int ocfs2_journal_access_eb(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* ocfs2_group_desc */
+int ocfs2_journal_access_gd(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* ocfs2_xattr_block */
+int ocfs2_journal_access_xb(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* quota blocks */
+int ocfs2_journal_access_dq(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* dirblock */
+int ocfs2_journal_access_db(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* Anything that has no ecc */
+int ocfs2_journal_access(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+
/*
* A word about the journal_access/journal_dirty "dance". It is
* entirely legal to journal_access a buffer more than once (as long
@@ -273,10 +291,6 @@ int ocfs2_journal_access(handle_t *handle,
*/
int ocfs2_journal_dirty(handle_t *handle,
struct buffer_head *bh);
-#ifdef CONFIG_OCFS2_COMPAT_JBD
-int ocfs2_journal_dirty_data(handle_t *handle,
- struct buffer_head *bh);
-#endif
/*
* Credit Macros:
@@ -293,6 +307,37 @@ int ocfs2_journal_dirty_data(handle_t *handle,
/* extended attribute block update */
#define OCFS2_XATTR_BLOCK_UPDATE_CREDITS 1
+/* global quotafile inode update, data block */
+#define OCFS2_QINFO_WRITE_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1)
+
+/*
+ * The two writes below can accidentally see global info dirty due
+ * to set_info() quotactl so make them prepared for the writes.
+ */
+/* quota data block, global info */
+/* Write to local quota file */
+#define OCFS2_QWRITE_CREDITS (OCFS2_QINFO_WRITE_CREDITS + 1)
+
+/* global quota data block, local quota data block, global quota inode,
+ * global quota info */
+#define OCFS2_QSYNC_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 3)
+
+static inline int ocfs2_quota_trans_credits(struct super_block *sb)
+{
+ int credits = 0;
+
+ if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA))
+ credits += OCFS2_QWRITE_CREDITS;
+ if (OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA))
+ credits += OCFS2_QWRITE_CREDITS;
+ return credits;
+}
+
+/* Number of credits needed for removing quota structure from file */
+int ocfs2_calc_qdel_credits(struct super_block *sb, int type);
+/* Number of credits needed for initialization of new quota structure */
+int ocfs2_calc_qinit_credits(struct super_block *sb, int type);
+
/* group extend. inode update and last group update. */
#define OCFS2_GROUP_EXTEND_CREDITS (OCFS2_INODE_UPDATE_CREDITS + 1)
@@ -303,8 +348,11 @@ int ocfs2_journal_dirty_data(handle_t *handle,
* prev. group desc. if we relink. */
#define OCFS2_SUBALLOC_ALLOC (3)
-#define OCFS2_INLINE_TO_EXTENTS_CREDITS (OCFS2_SUBALLOC_ALLOC \
- + OCFS2_INODE_UPDATE_CREDITS)
+static inline int ocfs2_inline_to_extents_credits(struct super_block *sb)
+{
+ return OCFS2_SUBALLOC_ALLOC + OCFS2_INODE_UPDATE_CREDITS +
+ ocfs2_quota_trans_credits(sb);
+}
/* dinode + group descriptor update. We don't relink on free yet. */
#define OCFS2_SUBALLOC_FREE (2)
@@ -313,16 +361,23 @@ int ocfs2_journal_dirty_data(handle_t *handle,
#define OCFS2_TRUNCATE_LOG_FLUSH_ONE_REC (OCFS2_SUBALLOC_FREE \
+ OCFS2_TRUNCATE_LOG_UPDATE)
-#define OCFS2_REMOVE_EXTENT_CREDITS (OCFS2_TRUNCATE_LOG_UPDATE + OCFS2_INODE_UPDATE_CREDITS)
+static inline int ocfs2_remove_extent_credits(struct super_block *sb)
+{
+ return OCFS2_TRUNCATE_LOG_UPDATE + OCFS2_INODE_UPDATE_CREDITS +
+ ocfs2_quota_trans_credits(sb);
+}
/* data block for new dir/symlink, 2 for bitmap updates (bitmap fe +
* bitmap block for the new bit) */
#define OCFS2_DIR_LINK_ADDITIONAL_CREDITS (1 + 2)
/* parent fe, parent block, new file entry, inode alloc fe, inode alloc
- * group descriptor + mkdir/symlink blocks */
-#define OCFS2_MKNOD_CREDITS (3 + OCFS2_SUBALLOC_ALLOC \
- + OCFS2_DIR_LINK_ADDITIONAL_CREDITS)
+ * group descriptor + mkdir/symlink blocks + quota update */
+static inline int ocfs2_mknod_credits(struct super_block *sb)
+{
+ return 3 + OCFS2_SUBALLOC_ALLOC + OCFS2_DIR_LINK_ADDITIONAL_CREDITS +
+ ocfs2_quota_trans_credits(sb);
+}
/* local alloc metadata change + main bitmap updates */
#define OCFS2_WINDOW_MOVE_CREDITS (OCFS2_INODE_UPDATE_CREDITS \
@@ -332,13 +387,21 @@ int ocfs2_journal_dirty_data(handle_t *handle,
* for the dinode, one for the new block. */
#define OCFS2_SIMPLE_DIR_EXTEND_CREDITS (2)
-/* file update (nlink, etc) + directory mtime/ctime + dir entry block */
-#define OCFS2_LINK_CREDITS (2*OCFS2_INODE_UPDATE_CREDITS + 1)
+/* file update (nlink, etc) + directory mtime/ctime + dir entry block + quota
+ * update on dir */
+static inline int ocfs2_link_credits(struct super_block *sb)
+{
+ return 2*OCFS2_INODE_UPDATE_CREDITS + 1 +
+ ocfs2_quota_trans_credits(sb);
+}
/* inode + dir inode (if we unlink a dir), + dir entry block + orphan
* dir inode link */
-#define OCFS2_UNLINK_CREDITS (2 * OCFS2_INODE_UPDATE_CREDITS + 1 \
- + OCFS2_LINK_CREDITS)
+static inline int ocfs2_unlink_credits(struct super_block *sb)
+{
+ /* The quota update from ocfs2_link_credits is unused here... */
+ return 2 * OCFS2_INODE_UPDATE_CREDITS + 1 + ocfs2_link_credits(sb);
+}
/* dinode + orphan dir dinode + inode alloc dinode + orphan dir entry +
* inode alloc group descriptor */
@@ -347,8 +410,10 @@ int ocfs2_journal_dirty_data(handle_t *handle,
/* dinode update, old dir dinode update, new dir dinode update, old
* dir dir entry, new dir dir entry, dir entry update for renaming
* directory + target unlink */
-#define OCFS2_RENAME_CREDITS (3 * OCFS2_INODE_UPDATE_CREDITS + 3 \
- + OCFS2_UNLINK_CREDITS)
+static inline int ocfs2_rename_credits(struct super_block *sb)
+{
+ return 3 * OCFS2_INODE_UPDATE_CREDITS + 3 + ocfs2_unlink_credits(sb);
+}
/* global bitmap dinode, group desc., relinked group,
* suballocator dinode, group desc., relinked group,
@@ -386,18 +451,19 @@ static inline int ocfs2_calc_extend_credits(struct super_block *sb,
* credit for the dinode there. */
extent_blocks = 1 + 1 + le16_to_cpu(root_el->l_tree_depth);
- return bitmap_blocks + sysfile_bitmap_blocks + extent_blocks;
+ return bitmap_blocks + sysfile_bitmap_blocks + extent_blocks +
+ ocfs2_quota_trans_credits(sb);
}
static inline int ocfs2_calc_symlink_credits(struct super_block *sb)
{
- int blocks = OCFS2_MKNOD_CREDITS;
+ int blocks = ocfs2_mknod_credits(sb);
/* links can be longer than one block so we may update many
* within our single allocated extent. */
blocks += ocfs2_clusters_to_blocks(sb, 1);
- return blocks;
+ return blocks + ocfs2_quota_trans_credits(sb);
}
static inline int ocfs2_calc_group_alloc_credits(struct super_block *sb,
@@ -434,6 +500,8 @@ static inline int ocfs2_calc_tree_trunc_credits(struct super_block *sb,
/* update to the truncate log. */
credits += OCFS2_TRUNCATE_LOG_UPDATE;
+ credits += ocfs2_quota_trans_credits(sb);
+
return credits;
}
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index 687b28713c32..ec70cdbe77fc 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -36,6 +36,7 @@
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "inode.h"
#include "journal.h"
@@ -248,8 +249,8 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb)
goto bail;
}
- status = ocfs2_read_blocks(inode, OCFS2_I(inode)->ip_blkno, 1,
- &alloc_bh, OCFS2_BH_IGNORE_CACHE);
+ status = ocfs2_read_inode_block_full(inode, &alloc_bh,
+ OCFS2_BH_IGNORE_CACHE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -382,8 +383,8 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
}
memcpy(alloc_copy, alloc, bh->b_size);
- status = ocfs2_journal_access(handle, local_alloc_inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, local_alloc_inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto out_commit;
@@ -459,8 +460,8 @@ int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
mutex_lock(&inode->i_mutex);
- status = ocfs2_read_blocks(inode, OCFS2_I(inode)->ip_blkno, 1,
- &alloc_bh, OCFS2_BH_IGNORE_CACHE);
+ status = ocfs2_read_inode_block_full(inode, &alloc_bh,
+ OCFS2_BH_IGNORE_CACHE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -476,6 +477,7 @@ int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
alloc = (struct ocfs2_dinode *) alloc_bh->b_data;
ocfs2_clear_local_alloc(alloc);
+ ocfs2_compute_meta_ecc(osb->sb, alloc_bh->b_data, &alloc->i_check);
status = ocfs2_write_block(osb, alloc_bh, inode);
if (status < 0)
mlog_errno(status);
@@ -762,9 +764,9 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
* delete bits from it! */
*num_bits = bits_wanted;
- status = ocfs2_journal_access(handle, local_alloc_inode,
- osb->local_alloc_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, local_alloc_inode,
+ osb->local_alloc_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1240,9 +1242,9 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
}
memcpy(alloc_copy, alloc, osb->local_alloc_bh->b_size);
- status = ocfs2_journal_access(handle, local_alloc_inode,
- osb->local_alloc_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, local_alloc_inode,
+ osb->local_alloc_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 2545e7402efe..084aba86c3b2 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -40,6 +40,7 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/highmem.h>
+#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_NAMEI
#include <cluster/masklog.h>
@@ -61,17 +62,18 @@
#include "sysfile.h"
#include "uptodate.h"
#include "xattr.h"
+#include "acl.h"
#include "buffer_head_io.h"
static int ocfs2_mknod_locked(struct ocfs2_super *osb,
struct inode *dir,
- struct dentry *dentry, int mode,
+ struct inode *inode,
+ struct dentry *dentry,
dev_t dev,
struct buffer_head **new_fe_bh,
struct buffer_head *parent_fe_bh,
handle_t *handle,
- struct inode **ret_inode,
struct ocfs2_alloc_context *inode_ac);
static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
@@ -186,6 +188,35 @@ bail:
return ret;
}
+static struct inode *ocfs2_get_init_inode(struct inode *dir, int mode)
+{
+ struct inode *inode;
+
+ inode = new_inode(dir->i_sb);
+ if (!inode) {
+ mlog(ML_ERROR, "new_inode failed!\n");
+ return NULL;
+ }
+
+ /* populate as many fields early on as possible - many of
+ * these are used by the support functions here and in
+ * callers. */
+ if (S_ISDIR(mode))
+ inode->i_nlink = 2;
+ else
+ inode->i_nlink = 1;
+ inode->i_uid = current_fsuid();
+ if (dir->i_mode & S_ISGID) {
+ inode->i_gid = dir->i_gid;
+ if (S_ISDIR(mode))
+ mode |= S_ISGID;
+ } else
+ inode->i_gid = current_fsgid();
+ inode->i_mode = mode;
+ vfs_dq_init(inode);
+ return inode;
+}
+
static int ocfs2_mknod(struct inode *dir,
struct dentry *dentry,
int mode,
@@ -201,6 +232,13 @@ static int ocfs2_mknod(struct inode *dir,
struct inode *inode = NULL;
struct ocfs2_alloc_context *inode_ac = NULL;
struct ocfs2_alloc_context *data_ac = NULL;
+ struct ocfs2_alloc_context *xattr_ac = NULL;
+ int want_clusters = 0;
+ int xattr_credits = 0;
+ struct ocfs2_security_xattr_info si = {
+ .enable = 1,
+ };
+ int did_quota_inode = 0;
mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, mode,
(unsigned long)dev, dentry->d_name.len,
@@ -250,17 +288,46 @@ static int ocfs2_mknod(struct inode *dir,
goto leave;
}
- /* Reserve a cluster if creating an extent based directory. */
- if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb)) {
- status = ocfs2_reserve_clusters(osb, 1, &data_ac);
- if (status < 0) {
- if (status != -ENOSPC)
- mlog_errno(status);
+ inode = ocfs2_get_init_inode(dir, mode);
+ if (!inode) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto leave;
+ }
+
+ /* get security xattr */
+ status = ocfs2_init_security_get(inode, dir, &si);
+ if (status) {
+ if (status == -EOPNOTSUPP)
+ si.enable = 0;
+ else {
+ mlog_errno(status);
goto leave;
}
}
- handle = ocfs2_start_trans(osb, OCFS2_MKNOD_CREDITS);
+ /* calculate meta data/clusters for setting security and acl xattr */
+ status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode,
+ &si, &want_clusters,
+ &xattr_credits, &xattr_ac);
+ if (status < 0) {
+ mlog_errno(status);
+ goto leave;
+ }
+
+ /* Reserve a cluster if creating an extent based directory. */
+ if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb))
+ want_clusters += 1;
+
+ status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac);
+ if (status < 0) {
+ if (status != -ENOSPC)
+ mlog_errno(status);
+ goto leave;
+ }
+
+ handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb) +
+ xattr_credits);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
handle = NULL;
@@ -268,10 +335,19 @@ static int ocfs2_mknod(struct inode *dir,
goto leave;
}
+ /* We don't use standard VFS wrapper because we don't want vfs_dq_init
+ * to be called. */
+ if (sb_any_quota_active(osb->sb) &&
+ osb->sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {
+ status = -EDQUOT;
+ goto leave;
+ }
+ did_quota_inode = 1;
+
/* do the real work now. */
- status = ocfs2_mknod_locked(osb, dir, dentry, mode, dev,
+ status = ocfs2_mknod_locked(osb, dir, inode, dentry, dev,
&new_fe_bh, parent_fe_bh, handle,
- &inode, inode_ac);
+ inode_ac);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -285,8 +361,8 @@ static int ocfs2_mknod(struct inode *dir,
goto leave;
}
- status = ocfs2_journal_access(handle, dir, parent_fe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, dir, parent_fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -300,6 +376,22 @@ static int ocfs2_mknod(struct inode *dir,
inc_nlink(dir);
}
+ status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh,
+ xattr_ac, data_ac);
+ if (status < 0) {
+ mlog_errno(status);
+ goto leave;
+ }
+
+ if (si.enable) {
+ status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si,
+ xattr_ac, data_ac);
+ if (status < 0) {
+ mlog_errno(status);
+ goto leave;
+ }
+ }
+
status = ocfs2_add_entry(handle, dentry, inode,
OCFS2_I(inode)->ip_blkno, parent_fe_bh,
de_bh);
@@ -320,6 +412,8 @@ static int ocfs2_mknod(struct inode *dir,
d_instantiate(dentry, inode);
status = 0;
leave:
+ if (status < 0 && did_quota_inode)
+ vfs_dq_free_inode(inode);
if (handle)
ocfs2_commit_trans(osb, handle);
@@ -331,9 +425,13 @@ leave:
brelse(new_fe_bh);
brelse(de_bh);
brelse(parent_fe_bh);
+ kfree(si.name);
+ kfree(si.value);
- if ((status < 0) && inode)
+ if ((status < 0) && inode) {
+ clear_nlink(inode);
iput(inode);
+ }
if (inode_ac)
ocfs2_free_alloc_context(inode_ac);
@@ -341,6 +439,9 @@ leave:
if (data_ac)
ocfs2_free_alloc_context(data_ac);
+ if (xattr_ac)
+ ocfs2_free_alloc_context(xattr_ac);
+
mlog_exit(status);
return status;
@@ -348,12 +449,12 @@ leave:
static int ocfs2_mknod_locked(struct ocfs2_super *osb,
struct inode *dir,
- struct dentry *dentry, int mode,
+ struct inode *inode,
+ struct dentry *dentry,
dev_t dev,
struct buffer_head **new_fe_bh,
struct buffer_head *parent_fe_bh,
handle_t *handle,
- struct inode **ret_inode,
struct ocfs2_alloc_context *inode_ac)
{
int status = 0;
@@ -361,14 +462,12 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
struct ocfs2_extent_list *fel;
u64 fe_blkno = 0;
u16 suballoc_bit;
- struct inode *inode = NULL;
- mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, mode,
- (unsigned long)dev, dentry->d_name.len,
+ mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry,
+ inode->i_mode, (unsigned long)dev, dentry->d_name.len,
dentry->d_name.name);
*new_fe_bh = NULL;
- *ret_inode = NULL;
status = ocfs2_claim_new_inode(osb, handle, inode_ac, &suballoc_bit,
&fe_blkno);
@@ -377,23 +476,11 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
goto leave;
}
- inode = new_inode(dir->i_sb);
- if (!inode) {
- status = -ENOMEM;
- mlog(ML_ERROR, "new_inode failed!\n");
- goto leave;
- }
-
/* populate as many fields early on as possible - many of
* these are used by the support functions here and in
* callers. */
inode->i_ino = ino_from_blkno(osb->sb, fe_blkno);
OCFS2_I(inode)->ip_blkno = fe_blkno;
- if (S_ISDIR(mode))
- inode->i_nlink = 2;
- else
- inode->i_nlink = 1;
- inode->i_mode = mode;
spin_lock(&osb->osb_lock);
inode->i_generation = osb->s_next_generation++;
spin_unlock(&osb->osb_lock);
@@ -406,8 +493,8 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
}
ocfs2_set_new_buffer_uptodate(inode, *new_fe_bh);
- status = ocfs2_journal_access(handle, inode, *new_fe_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ status = ocfs2_journal_access_di(handle, inode, *new_fe_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -421,17 +508,11 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
fe->i_blkno = cpu_to_le64(fe_blkno);
fe->i_suballoc_bit = cpu_to_le16(suballoc_bit);
fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot);
- fe->i_uid = cpu_to_le32(current_fsuid());
- if (dir->i_mode & S_ISGID) {
- fe->i_gid = cpu_to_le32(dir->i_gid);
- if (S_ISDIR(mode))
- mode |= S_ISGID;
- } else
- fe->i_gid = cpu_to_le32(current_fsgid());
- fe->i_mode = cpu_to_le16(mode);
- if (S_ISCHR(mode) || S_ISBLK(mode))
+ fe->i_uid = cpu_to_le32(inode->i_uid);
+ fe->i_gid = cpu_to_le32(inode->i_gid);
+ fe->i_mode = cpu_to_le16(inode->i_mode);
+ if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev));
-
fe->i_links_count = cpu_to_le16(inode->i_nlink);
fe->i_last_eb_blk = 0;
@@ -446,7 +527,7 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
/*
* If supported, directories start with inline data.
*/
- if (S_ISDIR(mode) && ocfs2_supports_inline_data(osb)) {
+ if (S_ISDIR(inode->i_mode) && ocfs2_supports_inline_data(osb)) {
u16 feat = le16_to_cpu(fe->i_dyn_features);
fe->i_dyn_features = cpu_to_le16(feat | OCFS2_INLINE_DATA_FL);
@@ -465,15 +546,7 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
goto leave;
}
- if (ocfs2_populate_inode(inode, fe, 1) < 0) {
- mlog(ML_ERROR, "populate inode failed! bh->b_blocknr=%llu, "
- "i_blkno=%llu, i_ino=%lu\n",
- (unsigned long long)(*new_fe_bh)->b_blocknr,
- (unsigned long long)le64_to_cpu(fe->i_blkno),
- inode->i_ino);
- BUG();
- }
-
+ ocfs2_populate_inode(inode, fe, 1);
ocfs2_inode_set_new(osb, inode);
if (!ocfs2_mount_local(osb)) {
status = ocfs2_create_new_inode_locks(inode);
@@ -484,17 +557,12 @@ static int ocfs2_mknod_locked(struct ocfs2_super *osb,
status = 0; /* error in ocfs2_create_new_inode_locks is not
* critical */
- *ret_inode = inode;
leave:
if (status < 0) {
if (*new_fe_bh) {
brelse(*new_fe_bh);
*new_fe_bh = NULL;
}
- if (inode) {
- clear_nlink(inode);
- iput(inode);
- }
}
mlog_exit(status);
@@ -588,7 +656,7 @@ static int ocfs2_link(struct dentry *old_dentry,
goto out_unlock_inode;
}
- handle = ocfs2_start_trans(osb, OCFS2_LINK_CREDITS);
+ handle = ocfs2_start_trans(osb, ocfs2_link_credits(osb->sb));
if (IS_ERR(handle)) {
err = PTR_ERR(handle);
handle = NULL;
@@ -596,8 +664,8 @@ static int ocfs2_link(struct dentry *old_dentry,
goto out_unlock_inode;
}
- err = ocfs2_journal_access(handle, inode, fe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ err = ocfs2_journal_access_di(handle, inode, fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (err < 0) {
mlog_errno(err);
goto out_commit;
@@ -775,7 +843,7 @@ static int ocfs2_unlink(struct inode *dir,
}
}
- handle = ocfs2_start_trans(osb, OCFS2_UNLINK_CREDITS);
+ handle = ocfs2_start_trans(osb, ocfs2_unlink_credits(osb->sb));
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
handle = NULL;
@@ -783,8 +851,8 @@ static int ocfs2_unlink(struct inode *dir,
goto leave;
}
- status = ocfs2_journal_access(handle, inode, fe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, inode, fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -1181,7 +1249,7 @@ static int ocfs2_rename(struct inode *old_dir,
}
}
- handle = ocfs2_start_trans(osb, OCFS2_RENAME_CREDITS);
+ handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb));
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
handle = NULL;
@@ -1197,8 +1265,8 @@ static int ocfs2_rename(struct inode *old_dir,
goto bail;
}
}
- status = ocfs2_journal_access(handle, new_inode, newfe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, new_inode, newfe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1244,8 +1312,8 @@ static int ocfs2_rename(struct inode *old_dir,
old_inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(old_inode);
- status = ocfs2_journal_access(handle, old_inode, old_inode_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, old_inode, old_inode_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status >= 0) {
old_di = (struct ocfs2_dinode *) old_inode_bh->b_data;
@@ -1321,9 +1389,9 @@ static int ocfs2_rename(struct inode *old_dir,
(int)old_dir_nlink, old_dir->i_nlink);
} else {
struct ocfs2_dinode *fe;
- status = ocfs2_journal_access(handle, old_dir,
- old_dir_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, old_dir,
+ old_dir_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
fe = (struct ocfs2_dinode *) old_dir_bh->b_data;
fe->i_links_count = cpu_to_le16(old_dir->i_nlink);
status = ocfs2_journal_dirty(handle, old_dir_bh);
@@ -1496,6 +1564,13 @@ static int ocfs2_symlink(struct inode *dir,
handle_t *handle = NULL;
struct ocfs2_alloc_context *inode_ac = NULL;
struct ocfs2_alloc_context *data_ac = NULL;
+ struct ocfs2_alloc_context *xattr_ac = NULL;
+ int want_clusters = 0;
+ int xattr_credits = 0;
+ struct ocfs2_security_xattr_info si = {
+ .enable = 1,
+ };
+ int did_quota = 0, did_quota_inode = 0;
mlog_entry("(0x%p, 0x%p, symname='%s' actual='%.*s')\n", dir,
dentry, symname, dentry->d_name.len, dentry->d_name.name);
@@ -1542,17 +1617,46 @@ static int ocfs2_symlink(struct inode *dir,
goto bail;
}
- /* don't reserve bitmap space for fast symlinks. */
- if (l > ocfs2_fast_symlink_chars(sb)) {
- status = ocfs2_reserve_clusters(osb, 1, &data_ac);
- if (status < 0) {
- if (status != -ENOSPC)
- mlog_errno(status);
+ inode = ocfs2_get_init_inode(dir, S_IFLNK | S_IRWXUGO);
+ if (!inode) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto bail;
+ }
+
+ /* get security xattr */
+ status = ocfs2_init_security_get(inode, dir, &si);
+ if (status) {
+ if (status == -EOPNOTSUPP)
+ si.enable = 0;
+ else {
+ mlog_errno(status);
goto bail;
}
}
- handle = ocfs2_start_trans(osb, credits);
+ /* calculate meta data/clusters for setting security xattr */
+ if (si.enable) {
+ status = ocfs2_calc_security_init(dir, &si, &want_clusters,
+ &xattr_credits, &xattr_ac);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail;
+ }
+ }
+
+ /* don't reserve bitmap space for fast symlinks. */
+ if (l > ocfs2_fast_symlink_chars(sb))
+ want_clusters += 1;
+
+ status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac);
+ if (status < 0) {
+ if (status != -ENOSPC)
+ mlog_errno(status);
+ goto bail;
+ }
+
+ handle = ocfs2_start_trans(osb, credits + xattr_credits);
if (IS_ERR(handle)) {
status = PTR_ERR(handle);
handle = NULL;
@@ -1560,10 +1664,18 @@ static int ocfs2_symlink(struct inode *dir,
goto bail;
}
- status = ocfs2_mknod_locked(osb, dir, dentry,
- S_IFLNK | S_IRWXUGO, 0,
- &new_fe_bh, parent_fe_bh, handle,
- &inode, inode_ac);
+ /* We don't use standard VFS wrapper because we don't want vfs_dq_init
+ * to be called. */
+ if (sb_any_quota_active(osb->sb) &&
+ osb->sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA) {
+ status = -EDQUOT;
+ goto bail;
+ }
+ did_quota_inode = 1;
+
+ status = ocfs2_mknod_locked(osb, dir, inode, dentry,
+ 0, &new_fe_bh, parent_fe_bh, handle,
+ inode_ac);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1576,6 +1688,12 @@ static int ocfs2_symlink(struct inode *dir,
u32 offset = 0;
inode->i_op = &ocfs2_symlink_inode_operations;
+ if (vfs_dq_alloc_space_nodirty(inode,
+ ocfs2_clusters_to_bytes(osb->sb, 1))) {
+ status = -EDQUOT;
+ goto bail;
+ }
+ did_quota = 1;
status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0,
new_fe_bh,
handle, data_ac, NULL,
@@ -1614,6 +1732,15 @@ static int ocfs2_symlink(struct inode *dir,
}
}
+ if (si.enable) {
+ status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si,
+ xattr_ac, data_ac);
+ if (status < 0) {
+ mlog_errno(status);
+ goto bail;
+ }
+ }
+
status = ocfs2_add_entry(handle, dentry, inode,
le64_to_cpu(fe->i_blkno), parent_fe_bh,
de_bh);
@@ -1632,6 +1759,11 @@ static int ocfs2_symlink(struct inode *dir,
dentry->d_op = &ocfs2_dentry_ops;
d_instantiate(dentry, inode);
bail:
+ if (status < 0 && did_quota)
+ vfs_dq_free_space_nodirty(inode,
+ ocfs2_clusters_to_bytes(osb->sb, 1));
+ if (status < 0 && did_quota_inode)
+ vfs_dq_free_inode(inode);
if (handle)
ocfs2_commit_trans(osb, handle);
@@ -1640,12 +1772,18 @@ bail:
brelse(new_fe_bh);
brelse(parent_fe_bh);
brelse(de_bh);
+ kfree(si.name);
+ kfree(si.value);
if (inode_ac)
ocfs2_free_alloc_context(inode_ac);
if (data_ac)
ocfs2_free_alloc_context(data_ac);
- if ((status < 0) && inode)
+ if (xattr_ac)
+ ocfs2_free_alloc_context(xattr_ac);
+ if ((status < 0) && inode) {
+ clear_nlink(inode);
iput(inode);
+ }
mlog_exit(status);
@@ -1754,16 +1892,14 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
- status = ocfs2_read_block(orphan_dir_inode,
- OCFS2_I(orphan_dir_inode)->ip_blkno,
- &orphan_dir_bh);
+ status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh);
if (status < 0) {
mlog_errno(status);
goto leave;
}
- status = ocfs2_journal_access(handle, orphan_dir_inode, orphan_dir_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, orphan_dir_inode, orphan_dir_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
@@ -1850,8 +1986,8 @@ int ocfs2_orphan_del(struct ocfs2_super *osb,
goto leave;
}
- status = ocfs2_journal_access(handle,orphan_dir_inode, orphan_dir_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle,orphan_dir_inode, orphan_dir_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 3fed9e3d8992..ad5c24a29edd 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -161,6 +161,7 @@ enum ocfs2_vol_state
{
VOLUME_INIT = 0,
VOLUME_MOUNTED,
+ VOLUME_MOUNTED_QUOTAS,
VOLUME_DISMOUNTED,
VOLUME_DISABLED
};
@@ -195,6 +196,9 @@ enum ocfs2_mount_options
OCFS2_MOUNT_LOCALFLOCKS = 1 << 5, /* No cluster aware user file locks */
OCFS2_MOUNT_NOUSERXATTR = 1 << 6, /* No user xattr */
OCFS2_MOUNT_INODE64 = 1 << 7, /* Allow inode numbers > 2^32 */
+ OCFS2_MOUNT_POSIX_ACL = 1 << 8, /* POSIX access control lists */
+ OCFS2_MOUNT_USRQUOTA = 1 << 9, /* We support user quotas */
+ OCFS2_MOUNT_GRPQUOTA = 1 << 10, /* We support group quotas */
};
#define OCFS2_OSB_SOFT_RO 0x0001
@@ -205,6 +209,7 @@ enum ocfs2_mount_options
struct ocfs2_journal;
struct ocfs2_slot_info;
struct ocfs2_recovery_map;
+struct ocfs2_quota_recovery;
struct ocfs2_super
{
struct task_struct *commit_task;
@@ -286,10 +291,11 @@ struct ocfs2_super
char *local_alloc_debug_buf;
#endif
- /* Next two fields are for local node slot recovery during
+ /* Next three fields are for local node slot recovery during
* mount. */
int dirty;
struct ocfs2_dinode *local_alloc_copy;
+ struct ocfs2_quota_recovery *quota_rec;
struct ocfs2_alloc_stats alloc_stats;
char dev_str[20]; /* "major,minor" of the device */
@@ -333,6 +339,10 @@ struct ocfs2_super
#define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info)
+/* Useful typedef for passing around journal access functions */
+typedef int (*ocfs2_journal_access_func)(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+
static inline int ocfs2_should_order_data(struct inode *inode)
{
if (!S_ISREG(inode->i_mode))
@@ -376,6 +386,13 @@ static inline int ocfs2_supports_xattr(struct ocfs2_super *osb)
return 0;
}
+static inline int ocfs2_meta_ecc(struct ocfs2_super *osb)
+{
+ if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_META_ECC)
+ return 1;
+ return 0;
+}
+
/* set / clear functions because cluster events can make these happen
* in parallel so we want the transitions to be atomic. this also
* means that any future flags osb_flags must be protected by spinlock
@@ -443,39 +460,19 @@ static inline int ocfs2_uses_extended_slot_map(struct ocfs2_super *osb)
#define OCFS2_IS_VALID_DINODE(ptr) \
(!strcmp((ptr)->i_signature, OCFS2_INODE_SIGNATURE))
-#define OCFS2_RO_ON_INVALID_DINODE(__sb, __di) do { \
- typeof(__di) ____di = (__di); \
- ocfs2_error((__sb), \
- "Dinode # %llu has bad signature %.*s", \
- (unsigned long long)le64_to_cpu((____di)->i_blkno), 7, \
- (____di)->i_signature); \
-} while (0)
-
#define OCFS2_IS_VALID_EXTENT_BLOCK(ptr) \
(!strcmp((ptr)->h_signature, OCFS2_EXTENT_BLOCK_SIGNATURE))
-#define OCFS2_RO_ON_INVALID_EXTENT_BLOCK(__sb, __eb) do { \
- typeof(__eb) ____eb = (__eb); \
- ocfs2_error((__sb), \
- "Extent Block # %llu has bad signature %.*s", \
- (unsigned long long)le64_to_cpu((____eb)->h_blkno), 7, \
- (____eb)->h_signature); \
-} while (0)
-
#define OCFS2_IS_VALID_GROUP_DESC(ptr) \
(!strcmp((ptr)->bg_signature, OCFS2_GROUP_DESC_SIGNATURE))
-#define OCFS2_RO_ON_INVALID_GROUP_DESC(__sb, __gd) do { \
- typeof(__gd) ____gd = (__gd); \
- ocfs2_error((__sb), \
- "Group Descriptor # %llu has bad signature %.*s", \
- (unsigned long long)le64_to_cpu((____gd)->bg_blkno), 7, \
- (____gd)->bg_signature); \
-} while (0)
#define OCFS2_IS_VALID_XATTR_BLOCK(ptr) \
(!strcmp((ptr)->xb_signature, OCFS2_XATTR_BLOCK_SIGNATURE))
+#define OCFS2_IS_VALID_DIR_TRAILER(ptr) \
+ (!strcmp((ptr)->db_signature, OCFS2_DIR_TRAILER_SIGNATURE))
+
static inline unsigned long ino_from_blkno(struct super_block *sb,
u64 blkno)
{
@@ -632,5 +629,6 @@ static inline s16 ocfs2_get_inode_steal_slot(struct ocfs2_super *osb)
#define ocfs2_clear_bit ext2_clear_bit
#define ocfs2_test_bit ext2_test_bit
#define ocfs2_find_next_zero_bit ext2_find_next_zero_bit
+#define ocfs2_find_next_bit ext2_find_next_bit
#endif /* OCFS2_H */
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 5e0c0d0aef7d..c7ae45aaa36c 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -65,6 +65,7 @@
#define OCFS2_EXTENT_BLOCK_SIGNATURE "EXBLK01"
#define OCFS2_GROUP_DESC_SIGNATURE "GROUP01"
#define OCFS2_XATTR_BLOCK_SIGNATURE "XATTR01"
+#define OCFS2_DIR_TRAILER_SIGNATURE "DIRTRL1"
/* Compatibility flags */
#define OCFS2_HAS_COMPAT_FEATURE(sb,mask) \
@@ -93,8 +94,11 @@
| OCFS2_FEATURE_INCOMPAT_INLINE_DATA \
| OCFS2_FEATURE_INCOMPAT_EXTENDED_SLOT_MAP \
| OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK \
- | OCFS2_FEATURE_INCOMPAT_XATTR)
-#define OCFS2_FEATURE_RO_COMPAT_SUPP OCFS2_FEATURE_RO_COMPAT_UNWRITTEN
+ | OCFS2_FEATURE_INCOMPAT_XATTR \
+ | OCFS2_FEATURE_INCOMPAT_META_ECC)
+#define OCFS2_FEATURE_RO_COMPAT_SUPP (OCFS2_FEATURE_RO_COMPAT_UNWRITTEN \
+ | OCFS2_FEATURE_RO_COMPAT_USRQUOTA \
+ | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)
/*
* Heartbeat-only devices are missing journals and other files. The
@@ -147,6 +151,9 @@
/* Support for extended attributes */
#define OCFS2_FEATURE_INCOMPAT_XATTR 0x0200
+/* Metadata checksum and error correction */
+#define OCFS2_FEATURE_INCOMPAT_META_ECC 0x0800
+
/*
* backup superblock flag is used to indicate that this volume
* has backup superblocks.
@@ -163,6 +170,12 @@
*/
#define OCFS2_FEATURE_RO_COMPAT_UNWRITTEN 0x0001
+/*
+ * Maintain quota information for this filesystem
+ */
+#define OCFS2_FEATURE_RO_COMPAT_USRQUOTA 0x0002
+#define OCFS2_FEATURE_RO_COMPAT_GRPQUOTA 0x0004
+
/* The byte offset of the first backup block will be 1G.
* The following will be 4G, 16G, 64G, 256G and 1T.
*/
@@ -192,6 +205,7 @@
#define OCFS2_HEARTBEAT_FL (0x00000200) /* Heartbeat area */
#define OCFS2_CHAIN_FL (0x00000400) /* Chain allocator */
#define OCFS2_DEALLOC_FL (0x00000800) /* Truncate log */
+#define OCFS2_QUOTA_FL (0x00001000) /* Quota file */
/*
* Flags on ocfs2_dinode.i_dyn_features
@@ -329,13 +343,17 @@ enum {
#define OCFS2_FIRST_ONLINE_SYSTEM_INODE SLOT_MAP_SYSTEM_INODE
HEARTBEAT_SYSTEM_INODE,
GLOBAL_BITMAP_SYSTEM_INODE,
-#define OCFS2_LAST_GLOBAL_SYSTEM_INODE GLOBAL_BITMAP_SYSTEM_INODE
+ USER_QUOTA_SYSTEM_INODE,
+ GROUP_QUOTA_SYSTEM_INODE,
+#define OCFS2_LAST_GLOBAL_SYSTEM_INODE GROUP_QUOTA_SYSTEM_INODE
ORPHAN_DIR_SYSTEM_INODE,
EXTENT_ALLOC_SYSTEM_INODE,
INODE_ALLOC_SYSTEM_INODE,
JOURNAL_SYSTEM_INODE,
LOCAL_ALLOC_SYSTEM_INODE,
TRUNCATE_LOG_SYSTEM_INODE,
+ LOCAL_USER_QUOTA_SYSTEM_INODE,
+ LOCAL_GROUP_QUOTA_SYSTEM_INODE,
NUM_SYSTEM_INODES
};
@@ -349,6 +367,8 @@ static struct ocfs2_system_inode_info ocfs2_system_inodes[NUM_SYSTEM_INODES] = {
[SLOT_MAP_SYSTEM_INODE] = { "slot_map", 0, S_IFREG | 0644 },
[HEARTBEAT_SYSTEM_INODE] = { "heartbeat", OCFS2_HEARTBEAT_FL, S_IFREG | 0644 },
[GLOBAL_BITMAP_SYSTEM_INODE] = { "global_bitmap", 0, S_IFREG | 0644 },
+ [USER_QUOTA_SYSTEM_INODE] = { "aquota.user", OCFS2_QUOTA_FL, S_IFREG | 0644 },
+ [GROUP_QUOTA_SYSTEM_INODE] = { "aquota.group", OCFS2_QUOTA_FL, S_IFREG | 0644 },
/* Slot-specific system inodes (one copy per slot) */
[ORPHAN_DIR_SYSTEM_INODE] = { "orphan_dir:%04d", 0, S_IFDIR | 0755 },
@@ -356,7 +376,9 @@ static struct ocfs2_system_inode_info ocfs2_system_inodes[NUM_SYSTEM_INODES] = {
[INODE_ALLOC_SYSTEM_INODE] = { "inode_alloc:%04d", OCFS2_BITMAP_FL | OCFS2_CHAIN_FL, S_IFREG | 0644 },
[JOURNAL_SYSTEM_INODE] = { "journal:%04d", OCFS2_JOURNAL_FL, S_IFREG | 0644 },
[LOCAL_ALLOC_SYSTEM_INODE] = { "local_alloc:%04d", OCFS2_BITMAP_FL | OCFS2_LOCAL_ALLOC_FL, S_IFREG | 0644 },
- [TRUNCATE_LOG_SYSTEM_INODE] = { "truncate_log:%04d", OCFS2_DEALLOC_FL, S_IFREG | 0644 }
+ [TRUNCATE_LOG_SYSTEM_INODE] = { "truncate_log:%04d", OCFS2_DEALLOC_FL, S_IFREG | 0644 },
+ [LOCAL_USER_QUOTA_SYSTEM_INODE] = { "aquota.user:%04d", OCFS2_QUOTA_FL, S_IFREG | 0644 },
+ [LOCAL_GROUP_QUOTA_SYSTEM_INODE] = { "aquota.group:%04d", OCFS2_QUOTA_FL, S_IFREG | 0644 },
};
/* Parameter passed from mount.ocfs2 to module */
@@ -409,6 +431,22 @@ static unsigned char ocfs2_type_by_mode[S_IFMT >> S_SHIFT] = {
*/
#define OCFS2_RAW_SB(dinode) (&((dinode)->id2.i_super))
+/*
+ * Block checking structure. This is used in metadata to validate the
+ * contents. If OCFS2_FEATURE_INCOMPAT_META_ECC is not set, it is all
+ * zeros.
+ */
+struct ocfs2_block_check {
+/*00*/ __le32 bc_crc32e; /* 802.3 Ethernet II CRC32 */
+ __le16 bc_ecc; /* Single-error-correction parity vector.
+ This is a simple Hamming code dependant
+ on the blocksize. OCFS2's maximum
+ blocksize, 4K, requires 16 parity bits,
+ so we fit in __le16. */
+ __le16 bc_reserved1;
+/*08*/
+};
+
/*
* On disk extent record for OCFS2
* It describes a range of clusters on disk.
@@ -496,7 +534,7 @@ struct ocfs2_truncate_log {
struct ocfs2_extent_block
{
/*00*/ __u8 h_signature[8]; /* Signature for verification */
- __le64 h_reserved1;
+ struct ocfs2_block_check h_check; /* Error checking */
/*10*/ __le16 h_suballoc_slot; /* Slot suballocator this
extent_header belongs to */
__le16 h_suballoc_bit; /* Bit offset in suballocator
@@ -666,7 +704,8 @@ struct ocfs2_dinode {
was set in i_flags */
__le16 i_dyn_features;
__le64 i_xattr_loc;
-/*80*/ __le64 i_reserved2[7];
+/*80*/ struct ocfs2_block_check i_check; /* Error checking */
+/*88*/ __le64 i_reserved2[6];
/*B8*/ union {
__le64 i_pad1; /* Generic way to refer to this
64bit union */
@@ -714,6 +753,34 @@ struct ocfs2_dir_entry {
/* Actual on-disk length specified by rec_len */
} __attribute__ ((packed));
+/*
+ * Per-block record for the unindexed directory btree. This is carefully
+ * crafted so that the rec_len and name_len records of an ocfs2_dir_entry are
+ * mirrored. That way, the directory manipulation code needs a minimal amount
+ * of update.
+ *
+ * NOTE: Keep this structure aligned to a multiple of 4 bytes.
+ */
+struct ocfs2_dir_block_trailer {
+/*00*/ __le64 db_compat_inode; /* Always zero. Was inode */
+
+ __le16 db_compat_rec_len; /* Backwards compatible with
+ * ocfs2_dir_entry. */
+ __u8 db_compat_name_len; /* Always zero. Was name_len */
+ __u8 db_reserved0;
+ __le16 db_reserved1;
+ __le16 db_free_rec_len; /* Size of largest empty hole
+ * in this block. (unused) */
+/*10*/ __u8 db_signature[8]; /* Signature for verification */
+ __le64 db_reserved2;
+ __le64 db_free_next; /* Next block in list (unused) */
+/*20*/ __le64 db_blkno; /* Offset on disk, in blocks */
+ __le64 db_parent_dinode; /* dinode which owns me, in
+ blocks */
+/*30*/ struct ocfs2_block_check db_check; /* Error checking */
+/*40*/
+};
+
/*
* On disk allocator group structure for OCFS2
*/
@@ -733,7 +800,8 @@ struct ocfs2_group_desc
/*20*/ __le64 bg_parent_dinode; /* dinode which owns me, in
blocks */
__le64 bg_blkno; /* Offset on disk, in blocks */
-/*30*/ __le64 bg_reserved2[2];
+/*30*/ struct ocfs2_block_check bg_check; /* Error checking */
+ __le64 bg_reserved2;
/*40*/ __u8 bg_bitmap[0];
};
@@ -776,7 +844,12 @@ struct ocfs2_xattr_header {
in this extent record,
only valid in the first
bucket. */
- __le64 xh_csum;
+ struct ocfs2_block_check xh_check; /* Error checking
+ (Note, this is only
+ used for xattr
+ buckets. A block uses
+ xb_check and sets
+ this field to zero.) */
struct ocfs2_xattr_entry xh_entries[0]; /* xattr entry list. */
};
@@ -827,7 +900,7 @@ struct ocfs2_xattr_block {
block group */
__le32 xb_fs_generation; /* Must match super block */
/*10*/ __le64 xb_blkno; /* Offset on disk, in blocks */
- __le64 xb_csum;
+ struct ocfs2_block_check xb_check; /* Error checking */
/*20*/ __le16 xb_flags; /* Indicates whether this block contains
real xattr or a xattr tree. */
__le16 xb_reserved0;
@@ -868,6 +941,128 @@ static inline int ocfs2_xattr_get_type(struct ocfs2_xattr_entry *xe)
return xe->xe_type & OCFS2_XATTR_TYPE_MASK;
}
+/*
+ * On disk structures for global quota file
+ */
+
+/* Magic numbers and known versions for global quota files */
+#define OCFS2_GLOBAL_QMAGICS {\
+ 0x0cf52470, /* USRQUOTA */ \
+ 0x0cf52471 /* GRPQUOTA */ \
+}
+
+#define OCFS2_GLOBAL_QVERSIONS {\
+ 0, \
+ 0, \
+}
+
+
+/* Each block of each quota file has a certain fixed number of bytes reserved
+ * for OCFS2 internal use at its end. OCFS2 can use it for things like
+ * checksums, etc. */
+#define OCFS2_QBLK_RESERVED_SPACE 8
+
+/* Generic header of all quota files */
+struct ocfs2_disk_dqheader {
+ __le32 dqh_magic; /* Magic number identifying file */
+ __le32 dqh_version; /* Quota format version */
+};
+
+#define OCFS2_GLOBAL_INFO_OFF (sizeof(struct ocfs2_disk_dqheader))
+
+/* Information header of global quota file (immediately follows the generic
+ * header) */
+struct ocfs2_global_disk_dqinfo {
+/*00*/ __le32 dqi_bgrace; /* Grace time for space softlimit excess */
+ __le32 dqi_igrace; /* Grace time for inode softlimit excess */
+ __le32 dqi_syncms; /* Time after which we sync local changes to
+ * global quota file */
+ __le32 dqi_blocks; /* Number of blocks in quota file */
+/*10*/ __le32 dqi_free_blk; /* First free block in quota file */
+ __le32 dqi_free_entry; /* First block with free dquot entry in quota
+ * file */
+};
+
+/* Structure with global user / group information. We reserve some space
+ * for future use. */
+struct ocfs2_global_disk_dqblk {
+/*00*/ __le32 dqb_id; /* ID the structure belongs to */
+ __le32 dqb_use_count; /* Number of nodes having reference to this structure */
+ __le64 dqb_ihardlimit; /* absolute limit on allocated inodes */
+/*10*/ __le64 dqb_isoftlimit; /* preferred inode limit */
+ __le64 dqb_curinodes; /* current # allocated inodes */
+/*20*/ __le64 dqb_bhardlimit; /* absolute limit on disk space */
+ __le64 dqb_bsoftlimit; /* preferred limit on disk space */
+/*30*/ __le64 dqb_curspace; /* current space occupied */
+ __le64 dqb_btime; /* time limit for excessive disk use */
+/*40*/ __le64 dqb_itime; /* time limit for excessive inode use */
+ __le64 dqb_pad1;
+/*50*/ __le64 dqb_pad2;
+};
+
+/*
+ * On-disk structures for local quota file
+ */
+
+/* Magic numbers and known versions for local quota files */
+#define OCFS2_LOCAL_QMAGICS {\
+ 0x0cf524c0, /* USRQUOTA */ \
+ 0x0cf524c1 /* GRPQUOTA */ \
+}
+
+#define OCFS2_LOCAL_QVERSIONS {\
+ 0, \
+ 0, \
+}
+
+/* Quota flags in dqinfo header */
+#define OLQF_CLEAN 0x0001 /* Quota file is empty (this should be after\
+ * quota has been cleanly turned off) */
+
+#define OCFS2_LOCAL_INFO_OFF (sizeof(struct ocfs2_disk_dqheader))
+
+/* Information header of local quota file (immediately follows the generic
+ * header) */
+struct ocfs2_local_disk_dqinfo {
+ __le32 dqi_flags; /* Flags for quota file */
+ __le32 dqi_chunks; /* Number of chunks of quota structures
+ * with a bitmap */
+ __le32 dqi_blocks; /* Number of blocks allocated for quota file */
+};
+
+/* Header of one chunk of a quota file */
+struct ocfs2_local_disk_chunk {
+ __le32 dqc_free; /* Number of free entries in the bitmap */
+ u8 dqc_bitmap[0]; /* Bitmap of entries in the corresponding
+ * chunk of quota file */
+};
+
+/* One entry in local quota file */
+struct ocfs2_local_disk_dqblk {
+/*00*/ __le64 dqb_id; /* id this quota applies to */
+ __le64 dqb_spacemod; /* Change in the amount of used space */
+/*10*/ __le64 dqb_inodemod; /* Change in the amount of used inodes */
+};
+
+
+/*
+ * The quota trailer lives at the end of each quota block.
+ */
+
+struct ocfs2_disk_dqtrailer {
+/*00*/ struct ocfs2_block_check dq_check; /* Error checking */
+/*08*/ /* Cannot be larger than OCFS2_QBLK_RESERVED_SPACE */
+};
+
+static inline struct ocfs2_disk_dqtrailer *ocfs2_block_dqtrailer(int blocksize,
+ void *buf)
+{
+ char *ptr = buf;
+ ptr += blocksize - OCFS2_QBLK_RESERVED_SPACE;
+
+ return (struct ocfs2_disk_dqtrailer *)ptr;
+}
+
#ifdef __KERNEL__
static inline int ocfs2_fast_symlink_chars(struct super_block *sb)
{
diff --git a/fs/ocfs2/ocfs2_jbd_compat.h b/fs/ocfs2/ocfs2_jbd_compat.h
deleted file mode 100644
index b91c78f8f558..000000000000
--- a/fs/ocfs2/ocfs2_jbd_compat.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * ocfs2_jbd_compat.h
- *
- * Compatibility defines for JBD.
- *
- * Copyright (C) 2008 Oracle. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#ifndef OCFS2_JBD_COMPAT_H
-#define OCFS2_JBD_COMPAT_H
-
-#ifndef CONFIG_OCFS2_COMPAT_JBD
-# error Should not have been included
-#endif
-
-struct jbd2_inode {
- unsigned int dummy;
-};
-
-#define JBD2_BARRIER JFS_BARRIER
-#define JBD2_DEFAULT_MAX_COMMIT_AGE JBD_DEFAULT_MAX_COMMIT_AGE
-
-#define jbd2_journal_ack_err journal_ack_err
-#define jbd2_journal_clear_err journal_clear_err
-#define jbd2_journal_destroy journal_destroy
-#define jbd2_journal_dirty_metadata journal_dirty_metadata
-#define jbd2_journal_errno journal_errno
-#define jbd2_journal_extend journal_extend
-#define jbd2_journal_flush journal_flush
-#define jbd2_journal_force_commit journal_force_commit
-#define jbd2_journal_get_write_access journal_get_write_access
-#define jbd2_journal_get_undo_access journal_get_undo_access
-#define jbd2_journal_init_inode journal_init_inode
-#define jbd2_journal_invalidatepage journal_invalidatepage
-#define jbd2_journal_load journal_load
-#define jbd2_journal_lock_updates journal_lock_updates
-#define jbd2_journal_restart journal_restart
-#define jbd2_journal_start journal_start
-#define jbd2_journal_start_commit journal_start_commit
-#define jbd2_journal_stop journal_stop
-#define jbd2_journal_try_to_free_buffers journal_try_to_free_buffers
-#define jbd2_journal_unlock_updates journal_unlock_updates
-#define jbd2_journal_wipe journal_wipe
-#define jbd2_log_wait_commit log_wait_commit
-
-static inline int jbd2_journal_file_inode(handle_t *handle,
- struct jbd2_inode *inode)
-{
- return 0;
-}
-
-static inline int jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode,
- loff_t new_size)
-{
- return 0;
-}
-
-static inline void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode,
- struct inode *inode)
-{
- return;
-}
-
-static inline void jbd2_journal_release_jbd_inode(journal_t *journal,
- struct jbd2_inode *jinode)
-{
- return;
-}
-
-
-#endif /* OCFS2_JBD_COMPAT_H */
diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h
index 82c200f7a8f1..eb6f50c9ceca 100644
--- a/fs/ocfs2/ocfs2_lockid.h
+++ b/fs/ocfs2/ocfs2_lockid.h
@@ -46,6 +46,7 @@ enum ocfs2_lock_type {
OCFS2_LOCK_TYPE_DENTRY,
OCFS2_LOCK_TYPE_OPEN,
OCFS2_LOCK_TYPE_FLOCK,
+ OCFS2_LOCK_TYPE_QINFO,
OCFS2_NUM_LOCK_TYPES
};
@@ -77,6 +78,9 @@ static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type)
case OCFS2_LOCK_TYPE_FLOCK:
c = 'F';
break;
+ case OCFS2_LOCK_TYPE_QINFO:
+ c = 'Q';
+ break;
default:
c = '\0';
}
@@ -95,6 +99,7 @@ static char *ocfs2_lock_type_strings[] = {
[OCFS2_LOCK_TYPE_DENTRY] = "Dentry",
[OCFS2_LOCK_TYPE_OPEN] = "Open",
[OCFS2_LOCK_TYPE_FLOCK] = "Flock",
+ [OCFS2_LOCK_TYPE_QINFO] = "Quota",
};
static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type)
diff --git a/fs/ocfs2/quota.h b/fs/ocfs2/quota.h
new file mode 100644
index 000000000000..7365e2e08706
--- /dev/null
+++ b/fs/ocfs2/quota.h
@@ -0,0 +1,119 @@
+/*
+ * quota.h for OCFS2
+ *
+ * On disk quota structures for local and global quota file, in-memory
+ * structures.
+ *
+ */
+
+#ifndef _OCFS2_QUOTA_H
+#define _OCFS2_QUOTA_H
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/quota.h>
+#include <linux/list.h>
+#include <linux/dqblk_qtree.h>
+
+#include "ocfs2.h"
+
+/* Common stuff */
+/* id number of quota format */
+#define QFMT_OCFS2 3
+
+/*
+ * In-memory structures
+ */
+struct ocfs2_dquot {
+ struct dquot dq_dquot; /* Generic VFS dquot */
+ loff_t dq_local_off; /* Offset in the local quota file */
+ struct ocfs2_quota_chunk *dq_chunk; /* Chunk dquot is in */
+ unsigned int dq_use_count; /* Number of nodes having reference to this entry in global quota file */
+ s64 dq_origspace; /* Last globally synced space usage */
+ s64 dq_originodes; /* Last globally synced inode usage */
+};
+
+/* Description of one chunk to recover in memory */
+struct ocfs2_recovery_chunk {
+ struct list_head rc_list; /* List of chunks */
+ int rc_chunk; /* Chunk number */
+ unsigned long *rc_bitmap; /* Bitmap of entries to recover */
+};
+
+struct ocfs2_quota_recovery {
+ struct list_head r_list[MAXQUOTAS]; /* List of chunks to recover */
+};
+
+/* In-memory structure with quota header information */
+struct ocfs2_mem_dqinfo {
+ unsigned int dqi_type; /* Quota type this structure describes */
+ unsigned int dqi_chunks; /* Number of chunks in local quota file */
+ unsigned int dqi_blocks; /* Number of blocks allocated for local quota file */
+ unsigned int dqi_syncms; /* How often should we sync with other nodes */
+ unsigned int dqi_syncjiff; /* Precomputed dqi_syncms in jiffies */
+ struct list_head dqi_chunk; /* List of chunks */
+ struct inode *dqi_gqinode; /* Global quota file inode */
+ struct ocfs2_lock_res dqi_gqlock; /* Lock protecting quota information structure */
+ struct buffer_head *dqi_gqi_bh; /* Buffer head with global quota file inode - set only if inode lock is obtained */
+ int dqi_gqi_count; /* Number of holders of dqi_gqi_bh */
+ struct buffer_head *dqi_lqi_bh; /* Buffer head with local quota file inode */
+ struct buffer_head *dqi_ibh; /* Buffer with information header */
+ struct qtree_mem_dqinfo dqi_gi; /* Info about global file */
+ struct delayed_work dqi_sync_work; /* Work for syncing dquots */
+ struct ocfs2_quota_recovery *dqi_rec; /* Pointer to recovery
+ * information, in case we
+ * enable quotas on file
+ * needing it */
+};
+
+static inline struct ocfs2_dquot *OCFS2_DQUOT(struct dquot *dquot)
+{
+ return container_of(dquot, struct ocfs2_dquot, dq_dquot);
+}
+
+struct ocfs2_quota_chunk {
+ struct list_head qc_chunk; /* List of quotafile chunks */
+ int qc_num; /* Number of quota chunk */
+ struct buffer_head *qc_headerbh; /* Buffer head with chunk header */
+};
+
+extern struct kmem_cache *ocfs2_dquot_cachep;
+extern struct kmem_cache *ocfs2_qf_chunk_cachep;
+
+extern struct qtree_fmt_operations ocfs2_global_ops;
+
+struct ocfs2_quota_recovery *ocfs2_begin_quota_recovery(
+ struct ocfs2_super *osb, int slot_num);
+int ocfs2_finish_quota_recovery(struct ocfs2_super *osb,
+ struct ocfs2_quota_recovery *rec,
+ int slot_num);
+void ocfs2_free_quota_recovery(struct ocfs2_quota_recovery *rec);
+ssize_t ocfs2_quota_read(struct super_block *sb, int type, char *data,
+ size_t len, loff_t off);
+ssize_t ocfs2_quota_write(struct super_block *sb, int type,
+ const char *data, size_t len, loff_t off);
+int ocfs2_global_read_info(struct super_block *sb, int type);
+int ocfs2_global_write_info(struct super_block *sb, int type);
+int ocfs2_global_read_dquot(struct dquot *dquot);
+int __ocfs2_sync_dquot(struct dquot *dquot, int freeing);
+static inline int ocfs2_sync_dquot(struct dquot *dquot)
+{
+ return __ocfs2_sync_dquot(dquot, 0);
+}
+static inline int ocfs2_global_release_dquot(struct dquot *dquot)
+{
+ return __ocfs2_sync_dquot(dquot, 1);
+}
+
+int ocfs2_lock_global_qf(struct ocfs2_mem_dqinfo *oinfo, int ex);
+void ocfs2_unlock_global_qf(struct ocfs2_mem_dqinfo *oinfo, int ex);
+int ocfs2_read_quota_block(struct inode *inode, u64 v_block,
+ struct buffer_head **bh);
+
+extern struct dquot_operations ocfs2_quota_operations;
+extern struct quota_format_type ocfs2_quota_format;
+
+int ocfs2_quota_setup(void);
+void ocfs2_quota_shutdown(void);
+
+#endif /* _OCFS2_QUOTA_H */
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
new file mode 100644
index 000000000000..6aff8f2d3e49
--- /dev/null
+++ b/fs/ocfs2/quota_global.c
@@ -0,0 +1,1025 @@
+/*
+ * Implementation of operations over global quota file
+ */
+#include <linux/spinlock.h>
+#include <linux/fs.h>
+#include <linux/quota.h>
+#include <linux/quotaops.h>
+#include <linux/dqblk_qtree.h>
+#include <linux/jiffies.h>
+#include <linux/writeback.h>
+#include <linux/workqueue.h>
+
+#define MLOG_MASK_PREFIX ML_QUOTA
+#include <cluster/masklog.h>
+
+#include "ocfs2_fs.h"
+#include "ocfs2.h"
+#include "alloc.h"
+#include "blockcheck.h"
+#include "inode.h"
+#include "journal.h"
+#include "file.h"
+#include "sysfile.h"
+#include "dlmglue.h"
+#include "uptodate.h"
+#include "quota.h"
+
+static struct workqueue_struct *ocfs2_quota_wq = NULL;
+
+static void qsync_work_fn(struct work_struct *work);
+
+static void ocfs2_global_disk2memdqb(struct dquot *dquot, void *dp)
+{
+ struct ocfs2_global_disk_dqblk *d = dp;
+ struct mem_dqblk *m = &dquot->dq_dqb;
+
+ /* Update from disk only entries not set by the admin */
+ if (!test_bit(DQ_LASTSET_B + QIF_ILIMITS_B, &dquot->dq_flags)) {
+ m->dqb_ihardlimit = le64_to_cpu(d->dqb_ihardlimit);
+ m->dqb_isoftlimit = le64_to_cpu(d->dqb_isoftlimit);
+ }
+ if (!test_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags))
+ m->dqb_curinodes = le64_to_cpu(d->dqb_curinodes);
+ if (!test_bit(DQ_LASTSET_B + QIF_BLIMITS_B, &dquot->dq_flags)) {
+ m->dqb_bhardlimit = le64_to_cpu(d->dqb_bhardlimit);
+ m->dqb_bsoftlimit = le64_to_cpu(d->dqb_bsoftlimit);
+ }
+ if (!test_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags))
+ m->dqb_curspace = le64_to_cpu(d->dqb_curspace);
+ if (!test_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags))
+ m->dqb_btime = le64_to_cpu(d->dqb_btime);
+ if (!test_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags))
+ m->dqb_itime = le64_to_cpu(d->dqb_itime);
+ OCFS2_DQUOT(dquot)->dq_use_count = le32_to_cpu(d->dqb_use_count);
+}
+
+static void ocfs2_global_mem2diskdqb(void *dp, struct dquot *dquot)
+{
+ struct ocfs2_global_disk_dqblk *d = dp;
+ struct mem_dqblk *m = &dquot->dq_dqb;
+
+ d->dqb_id = cpu_to_le32(dquot->dq_id);
+ d->dqb_use_count = cpu_to_le32(OCFS2_DQUOT(dquot)->dq_use_count);
+ d->dqb_ihardlimit = cpu_to_le64(m->dqb_ihardlimit);
+ d->dqb_isoftlimit = cpu_to_le64(m->dqb_isoftlimit);
+ d->dqb_curinodes = cpu_to_le64(m->dqb_curinodes);
+ d->dqb_bhardlimit = cpu_to_le64(m->dqb_bhardlimit);
+ d->dqb_bsoftlimit = cpu_to_le64(m->dqb_bsoftlimit);
+ d->dqb_curspace = cpu_to_le64(m->dqb_curspace);
+ d->dqb_btime = cpu_to_le64(m->dqb_btime);
+ d->dqb_itime = cpu_to_le64(m->dqb_itime);
+}
+
+static int ocfs2_global_is_id(void *dp, struct dquot *dquot)
+{
+ struct ocfs2_global_disk_dqblk *d = dp;
+ struct ocfs2_mem_dqinfo *oinfo =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+
+ if (qtree_entry_unused(&oinfo->dqi_gi, dp))
+ return 0;
+ return le32_to_cpu(d->dqb_id) == dquot->dq_id;
+}
+
+struct qtree_fmt_operations ocfs2_global_ops = {
+ .mem2disk_dqblk = ocfs2_global_mem2diskdqb,
+ .disk2mem_dqblk = ocfs2_global_disk2memdqb,
+ .is_id = ocfs2_global_is_id,
+};
+
+static int ocfs2_validate_quota_block(struct super_block *sb,
+ struct buffer_head *bh)
+{
+ struct ocfs2_disk_dqtrailer *dqt =
+ ocfs2_block_dqtrailer(sb->s_blocksize, bh->b_data);
+
+ mlog(0, "Validating quota block %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ return ocfs2_validate_meta_ecc(sb, bh->b_data, &dqt->dq_check);
+}
+
+int ocfs2_read_quota_block(struct inode *inode, u64 v_block,
+ struct buffer_head **bh)
+{
+ int rc = 0;
+ struct buffer_head *tmp = *bh;
+
+ rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0,
+ ocfs2_validate_quota_block);
+ if (rc)
+ mlog_errno(rc);
+
+ /* If ocfs2_read_virt_blocks() got us a new bh, pass it up. */
+ if (!rc && !*bh)
+ *bh = tmp;
+
+ return rc;
+}
+
+static int ocfs2_get_quota_block(struct inode *inode, int block,
+ struct buffer_head **bh)
+{
+ u64 pblock, pcount;
+ int err;
+
+ down_read(&OCFS2_I(inode)->ip_alloc_sem);
+ err = ocfs2_extent_map_get_blocks(inode, block, &pblock, &pcount, NULL);
+ up_read(&OCFS2_I(inode)->ip_alloc_sem);
+ if (err) {
+ mlog_errno(err);
+ return err;
+ }
+ *bh = sb_getblk(inode->i_sb, pblock);
+ if (!*bh) {
+ err = -EIO;
+ mlog_errno(err);
+ }
+ return err;;
+}
+
+/* Read data from global quotafile - avoid pagecache and such because we cannot
+ * afford acquiring the locks... We use quota cluster lock to serialize
+ * operations. Caller is responsible for acquiring it. */
+ssize_t ocfs2_quota_read(struct super_block *sb, int type, char *data,
+ size_t len, loff_t off)
+{
+ struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ struct inode *gqinode = oinfo->dqi_gqinode;
+ loff_t i_size = i_size_read(gqinode);
+ int offset = off & (sb->s_blocksize - 1);
+ sector_t blk = off >> sb->s_blocksize_bits;
+ int err = 0;
+ struct buffer_head *bh;
+ size_t toread, tocopy;
+
+ if (off > i_size)
+ return 0;
+ if (off + len > i_size)
+ len = i_size - off;
+ toread = len;
+ while (toread > 0) {
+ tocopy = min_t(size_t, (sb->s_blocksize - offset), toread);
+ bh = NULL;
+ err = ocfs2_read_quota_block(gqinode, blk, &bh);
+ if (err) {
+ mlog_errno(err);
+ return err;
+ }
+ memcpy(data, bh->b_data + offset, tocopy);
+ brelse(bh);
+ offset = 0;
+ toread -= tocopy;
+ data += tocopy;
+ blk++;
+ }
+ return len;
+}
+
+/* Write to quotafile (we know the transaction is already started and has
+ * enough credits) */
+ssize_t ocfs2_quota_write(struct super_block *sb, int type,
+ const char *data, size_t len, loff_t off)
+{
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ struct inode *gqinode = oinfo->dqi_gqinode;
+ int offset = off & (sb->s_blocksize - 1);
+ sector_t blk = off >> sb->s_blocksize_bits;
+ int err = 0, new = 0, ja_type;
+ struct buffer_head *bh = NULL;
+ handle_t *handle = journal_current_handle();
+
+ if (!handle) {
+ mlog(ML_ERROR, "Quota write (off=%llu, len=%llu) cancelled "
+ "because transaction was not started.\n",
+ (unsigned long long)off, (unsigned long long)len);
+ return -EIO;
+ }
+ if (len > sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE - offset) {
+ WARN_ON(1);
+ len = sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE - offset;
+ }
+
+ mutex_lock_nested(&gqinode->i_mutex, I_MUTEX_QUOTA);
+ if (gqinode->i_size < off + len) {
+ down_write(&OCFS2_I(gqinode)->ip_alloc_sem);
+ err = ocfs2_extend_no_holes(gqinode, off + len, off);
+ up_write(&OCFS2_I(gqinode)->ip_alloc_sem);
+ if (err < 0)
+ goto out;
+ err = ocfs2_simple_size_update(gqinode,
+ oinfo->dqi_gqi_bh,
+ off + len);
+ if (err < 0)
+ goto out;
+ new = 1;
+ }
+ /* Not rewriting whole block? */
+ if ((offset || len < sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE) &&
+ !new) {
+ err = ocfs2_read_quota_block(gqinode, blk, &bh);
+ ja_type = OCFS2_JOURNAL_ACCESS_WRITE;
+ } else {
+ err = ocfs2_get_quota_block(gqinode, blk, &bh);
+ ja_type = OCFS2_JOURNAL_ACCESS_CREATE;
+ }
+ if (err) {
+ mlog_errno(err);
+ return err;
+ }
+ lock_buffer(bh);
+ if (new)
+ memset(bh->b_data, 0, sb->s_blocksize);
+ memcpy(bh->b_data + offset, data, len);
+ flush_dcache_page(bh->b_page);
+ set_buffer_uptodate(bh);
+ unlock_buffer(bh);
+ ocfs2_set_buffer_uptodate(gqinode, bh);
+ err = ocfs2_journal_access_dq(handle, gqinode, bh, ja_type);
+ if (err < 0) {
+ brelse(bh);
+ goto out;
+ }
+ err = ocfs2_journal_dirty(handle, bh);
+ brelse(bh);
+ if (err < 0)
+ goto out;
+out:
+ if (err) {
+ mutex_unlock(&gqinode->i_mutex);
+ mlog_errno(err);
+ return err;
+ }
+ gqinode->i_version++;
+ ocfs2_mark_inode_dirty(handle, gqinode, oinfo->dqi_gqi_bh);
+ mutex_unlock(&gqinode->i_mutex);
+ return len;
+}
+
+int ocfs2_lock_global_qf(struct ocfs2_mem_dqinfo *oinfo, int ex)
+{
+ int status;
+ struct buffer_head *bh = NULL;
+
+ status = ocfs2_inode_lock(oinfo->dqi_gqinode, &bh, ex);
+ if (status < 0)
+ return status;
+ spin_lock(&dq_data_lock);
+ if (!oinfo->dqi_gqi_count++)
+ oinfo->dqi_gqi_bh = bh;
+ else
+ WARN_ON(bh != oinfo->dqi_gqi_bh);
+ spin_unlock(&dq_data_lock);
+ return 0;
+}
+
+void ocfs2_unlock_global_qf(struct ocfs2_mem_dqinfo *oinfo, int ex)
+{
+ ocfs2_inode_unlock(oinfo->dqi_gqinode, ex);
+ brelse(oinfo->dqi_gqi_bh);
+ spin_lock(&dq_data_lock);
+ if (!--oinfo->dqi_gqi_count)
+ oinfo->dqi_gqi_bh = NULL;
+ spin_unlock(&dq_data_lock);
+}
+
+/* Read information header from global quota file */
+int ocfs2_global_read_info(struct super_block *sb, int type)
+{
+ struct inode *gqinode = NULL;
+ unsigned int ino[MAXQUOTAS] = { USER_QUOTA_SYSTEM_INODE,
+ GROUP_QUOTA_SYSTEM_INODE };
+ struct ocfs2_global_disk_dqinfo dinfo;
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ int status;
+
+ mlog_entry_void();
+
+ /* Read global header */
+ gqinode = ocfs2_get_system_file_inode(OCFS2_SB(sb), ino[type],
+ OCFS2_INVALID_SLOT);
+ if (!gqinode) {
+ mlog(ML_ERROR, "failed to get global quota inode (type=%d)\n",
+ type);
+ status = -EINVAL;
+ goto out_err;
+ }
+ oinfo->dqi_gi.dqi_sb = sb;
+ oinfo->dqi_gi.dqi_type = type;
+ ocfs2_qinfo_lock_res_init(&oinfo->dqi_gqlock, oinfo);
+ oinfo->dqi_gi.dqi_entry_size = sizeof(struct ocfs2_global_disk_dqblk);
+ oinfo->dqi_gi.dqi_ops = &ocfs2_global_ops;
+ oinfo->dqi_gqi_bh = NULL;
+ oinfo->dqi_gqi_count = 0;
+ oinfo->dqi_gqinode = gqinode;
+ status = ocfs2_lock_global_qf(oinfo, 0);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_err;
+ }
+ status = sb->s_op->quota_read(sb, type, (char *)&dinfo,
+ sizeof(struct ocfs2_global_disk_dqinfo),
+ OCFS2_GLOBAL_INFO_OFF);
+ ocfs2_unlock_global_qf(oinfo, 0);
+ if (status != sizeof(struct ocfs2_global_disk_dqinfo)) {
+ mlog(ML_ERROR, "Cannot read global quota info (%d).\n",
+ status);
+ if (status >= 0)
+ status = -EIO;
+ mlog_errno(status);
+ goto out_err;
+ }
+ info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
+ info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
+ oinfo->dqi_syncms = le32_to_cpu(dinfo.dqi_syncms);
+ oinfo->dqi_syncjiff = msecs_to_jiffies(oinfo->dqi_syncms);
+ oinfo->dqi_gi.dqi_blocks = le32_to_cpu(dinfo.dqi_blocks);
+ oinfo->dqi_gi.dqi_free_blk = le32_to_cpu(dinfo.dqi_free_blk);
+ oinfo->dqi_gi.dqi_free_entry = le32_to_cpu(dinfo.dqi_free_entry);
+ oinfo->dqi_gi.dqi_blocksize_bits = sb->s_blocksize_bits;
+ oinfo->dqi_gi.dqi_usable_bs = sb->s_blocksize -
+ OCFS2_QBLK_RESERVED_SPACE;
+ oinfo->dqi_gi.dqi_qtree_depth = qtree_depth(&oinfo->dqi_gi);
+ INIT_DELAYED_WORK(&oinfo->dqi_sync_work, qsync_work_fn);
+ queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
+ oinfo->dqi_syncjiff);
+
+out_err:
+ mlog_exit(status);
+ return status;
+}
+
+/* Write information to global quota file. Expects exlusive lock on quota
+ * file inode and quota info */
+static int __ocfs2_global_write_info(struct super_block *sb, int type)
+{
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ struct ocfs2_global_disk_dqinfo dinfo;
+ ssize_t size;
+
+ spin_lock(&dq_data_lock);
+ info->dqi_flags &= ~DQF_INFO_DIRTY;
+ dinfo.dqi_bgrace = cpu_to_le32(info->dqi_bgrace);
+ dinfo.dqi_igrace = cpu_to_le32(info->dqi_igrace);
+ spin_unlock(&dq_data_lock);
+ dinfo.dqi_syncms = cpu_to_le32(oinfo->dqi_syncms);
+ dinfo.dqi_blocks = cpu_to_le32(oinfo->dqi_gi.dqi_blocks);
+ dinfo.dqi_free_blk = cpu_to_le32(oinfo->dqi_gi.dqi_free_blk);
+ dinfo.dqi_free_entry = cpu_to_le32(oinfo->dqi_gi.dqi_free_entry);
+ size = sb->s_op->quota_write(sb, type, (char *)&dinfo,
+ sizeof(struct ocfs2_global_disk_dqinfo),
+ OCFS2_GLOBAL_INFO_OFF);
+ if (size != sizeof(struct ocfs2_global_disk_dqinfo)) {
+ mlog(ML_ERROR, "Cannot write global quota info structure\n");
+ if (size >= 0)
+ size = -EIO;
+ return size;
+ }
+ return 0;
+}
+
+int ocfs2_global_write_info(struct super_block *sb, int type)
+{
+ int err;
+ struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;
+
+ err = ocfs2_qinfo_lock(info, 1);
+ if (err < 0)
+ return err;
+ err = __ocfs2_global_write_info(sb, type);
+ ocfs2_qinfo_unlock(info, 1);
+ return err;
+}
+
+/* Read in information from global quota file and acquire a reference to it.
+ * dquot_acquire() has already started the transaction and locked quota file */
+int ocfs2_global_read_dquot(struct dquot *dquot)
+{
+ int err, err2, ex = 0;
+ struct ocfs2_mem_dqinfo *info =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+
+ err = ocfs2_qinfo_lock(info, 0);
+ if (err < 0)
+ goto out;
+ err = qtree_read_dquot(&info->dqi_gi, dquot);
+ if (err < 0)
+ goto out_qlock;
+ OCFS2_DQUOT(dquot)->dq_use_count++;
+ OCFS2_DQUOT(dquot)->dq_origspace = dquot->dq_dqb.dqb_curspace;
+ OCFS2_DQUOT(dquot)->dq_originodes = dquot->dq_dqb.dqb_curinodes;
+ if (!dquot->dq_off) { /* No real quota entry? */
+ /* Upgrade to exclusive lock for allocation */
+ err = ocfs2_qinfo_lock(info, 1);
+ if (err < 0)
+ goto out_qlock;
+ ex = 1;
+ }
+ err = qtree_write_dquot(&info->dqi_gi, dquot);
+ if (ex && info_dirty(sb_dqinfo(dquot->dq_sb, dquot->dq_type))) {
+ err2 = __ocfs2_global_write_info(dquot->dq_sb, dquot->dq_type);
+ if (!err)
+ err = err2;
+ }
+out_qlock:
+ if (ex)
+ ocfs2_qinfo_unlock(info, 1);
+ ocfs2_qinfo_unlock(info, 0);
+out:
+ if (err < 0)
+ mlog_errno(err);
+ return err;
+}
+
+/* Sync local information about quota modifications with global quota file.
+ * Caller must have started the transaction and obtained exclusive lock for
+ * global quota file inode */
+int __ocfs2_sync_dquot(struct dquot *dquot, int freeing)
+{
+ int err, err2;
+ struct super_block *sb = dquot->dq_sb;
+ int type = dquot->dq_type;
+ struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;
+ struct ocfs2_global_disk_dqblk dqblk;
+ s64 spacechange, inodechange;
+ time_t olditime, oldbtime;
+
+ err = sb->s_op->quota_read(sb, type, (char *)&dqblk,
+ sizeof(struct ocfs2_global_disk_dqblk),
+ dquot->dq_off);
+ if (err != sizeof(struct ocfs2_global_disk_dqblk)) {
+ if (err >= 0) {
+ mlog(ML_ERROR, "Short read from global quota file "
+ "(%u read)\n", err);
+ err = -EIO;
+ }
+ goto out;
+ }
+
+ /* Update space and inode usage. Get also other information from
+ * global quota file so that we don't overwrite any changes there.
+ * We are */
+ spin_lock(&dq_data_lock);
+ spacechange = dquot->dq_dqb.dqb_curspace -
+ OCFS2_DQUOT(dquot)->dq_origspace;
+ inodechange = dquot->dq_dqb.dqb_curinodes -
+ OCFS2_DQUOT(dquot)->dq_originodes;
+ olditime = dquot->dq_dqb.dqb_itime;
+ oldbtime = dquot->dq_dqb.dqb_btime;
+ ocfs2_global_disk2memdqb(dquot, &dqblk);
+ mlog(0, "Syncing global dquot %u space %lld+%lld, inodes %lld+%lld\n",
+ dquot->dq_id, dquot->dq_dqb.dqb_curspace, (long long)spacechange,
+ dquot->dq_dqb.dqb_curinodes, (long long)inodechange);
+ if (!test_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags))
+ dquot->dq_dqb.dqb_curspace += spacechange;
+ if (!test_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags))
+ dquot->dq_dqb.dqb_curinodes += inodechange;
+ /* Set properly space grace time... */
+ if (dquot->dq_dqb.dqb_bsoftlimit &&
+ dquot->dq_dqb.dqb_curspace > dquot->dq_dqb.dqb_bsoftlimit) {
+ if (!test_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags) &&
+ oldbtime > 0) {
+ if (dquot->dq_dqb.dqb_btime > 0)
+ dquot->dq_dqb.dqb_btime =
+ min(dquot->dq_dqb.dqb_btime, oldbtime);
+ else
+ dquot->dq_dqb.dqb_btime = oldbtime;
+ }
+ } else {
+ dquot->dq_dqb.dqb_btime = 0;
+ clear_bit(DQ_BLKS_B, &dquot->dq_flags);
+ }
+ /* Set properly inode grace time... */
+ if (dquot->dq_dqb.dqb_isoftlimit &&
+ dquot->dq_dqb.dqb_curinodes > dquot->dq_dqb.dqb_isoftlimit) {
+ if (!test_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags) &&
+ olditime > 0) {
+ if (dquot->dq_dqb.dqb_itime > 0)
+ dquot->dq_dqb.dqb_itime =
+ min(dquot->dq_dqb.dqb_itime, olditime);
+ else
+ dquot->dq_dqb.dqb_itime = olditime;
+ }
+ } else {
+ dquot->dq_dqb.dqb_itime = 0;
+ clear_bit(DQ_INODES_B, &dquot->dq_flags);
+ }
+ /* All information is properly updated, clear the flags */
+ __clear_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
+ __clear_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags);
+ __clear_bit(DQ_LASTSET_B + QIF_BLIMITS_B, &dquot->dq_flags);
+ __clear_bit(DQ_LASTSET_B + QIF_ILIMITS_B, &dquot->dq_flags);
+ __clear_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags);
+ __clear_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags);
+ OCFS2_DQUOT(dquot)->dq_origspace = dquot->dq_dqb.dqb_curspace;
+ OCFS2_DQUOT(dquot)->dq_originodes = dquot->dq_dqb.dqb_curinodes;
+ spin_unlock(&dq_data_lock);
+ err = ocfs2_qinfo_lock(info, freeing);
+ if (err < 0) {
+ mlog(ML_ERROR, "Failed to lock quota info, loosing quota write"
+ " (type=%d, id=%u)\n", dquot->dq_type,
+ (unsigned)dquot->dq_id);
+ goto out;
+ }
+ if (freeing)
+ OCFS2_DQUOT(dquot)->dq_use_count--;
+ err = qtree_write_dquot(&info->dqi_gi, dquot);
+ if (err < 0)
+ goto out_qlock;
+ if (freeing && !OCFS2_DQUOT(dquot)->dq_use_count) {
+ err = qtree_release_dquot(&info->dqi_gi, dquot);
+ if (info_dirty(sb_dqinfo(sb, type))) {
+ err2 = __ocfs2_global_write_info(sb, type);
+ if (!err)
+ err = err2;
+ }
+ }
+out_qlock:
+ ocfs2_qinfo_unlock(info, freeing);
+out:
+ if (err < 0)
+ mlog_errno(err);
+ return err;
+}
+
+/*
+ * Functions for periodic syncing of dquots with global file
+ */
+static int ocfs2_sync_dquot_helper(struct dquot *dquot, unsigned long type)
+{
+ handle_t *handle;
+ struct super_block *sb = dquot->dq_sb;
+ struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ struct ocfs2_super *osb = OCFS2_SB(sb);
+ int status = 0;
+
+ mlog_entry("id=%u qtype=%u type=%lu device=%s\n", dquot->dq_id,
+ dquot->dq_type, type, sb->s_id);
+ if (type != dquot->dq_type)
+ goto out;
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto out;
+
+ handle = ocfs2_start_trans(osb, OCFS2_QSYNC_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_ilock;
+ }
+ mutex_lock(&sb_dqopt(sb)->dqio_mutex);
+ status = ocfs2_sync_dquot(dquot);
+ mutex_unlock(&sb_dqopt(sb)->dqio_mutex);
+ if (status < 0)
+ mlog_errno(status);
+ /* We have to write local structure as well... */
+ dquot_mark_dquot_dirty(dquot);
+ status = dquot_commit(dquot);
+ if (status < 0)
+ mlog_errno(status);
+ ocfs2_commit_trans(osb, handle);
+out_ilock:
+ ocfs2_unlock_global_qf(oinfo, 1);
+out:
+ mlog_exit(status);
+ return status;
+}
+
+static void qsync_work_fn(struct work_struct *work)
+{
+ struct ocfs2_mem_dqinfo *oinfo = container_of(work,
+ struct ocfs2_mem_dqinfo,
+ dqi_sync_work.work);
+ struct super_block *sb = oinfo->dqi_gqinode->i_sb;
+
+ dquot_scan_active(sb, ocfs2_sync_dquot_helper, oinfo->dqi_type);
+ queue_delayed_work(ocfs2_quota_wq, &oinfo->dqi_sync_work,
+ oinfo->dqi_syncjiff);
+}
+
+/*
+ * Wrappers for generic quota functions
+ */
+
+static int ocfs2_write_dquot(struct dquot *dquot)
+{
+ handle_t *handle;
+ struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb);
+ int status = 0;
+
+ mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type);
+
+ handle = ocfs2_start_trans(osb, OCFS2_QWRITE_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out;
+ }
+ status = dquot_commit(dquot);
+ ocfs2_commit_trans(osb, handle);
+out:
+ mlog_exit(status);
+ return status;
+}
+
+int ocfs2_calc_qdel_credits(struct super_block *sb, int type)
+{
+ struct ocfs2_mem_dqinfo *oinfo;
+ int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA };
+
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type]))
+ return 0;
+
+ oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ /* We modify tree, leaf block, global info, local chunk header,
+ * global and local inode */
+ return oinfo->dqi_gi.dqi_qtree_depth + 2 + 1 +
+ 2 * OCFS2_INODE_UPDATE_CREDITS;
+}
+
+static int ocfs2_release_dquot(struct dquot *dquot)
+{
+ handle_t *handle;
+ struct ocfs2_mem_dqinfo *oinfo =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+ struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb);
+ int status = 0;
+
+ mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type);
+
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto out;
+ handle = ocfs2_start_trans(osb,
+ ocfs2_calc_qdel_credits(dquot->dq_sb, dquot->dq_type));
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_ilock;
+ }
+ status = dquot_release(dquot);
+ ocfs2_commit_trans(osb, handle);
+out_ilock:
+ ocfs2_unlock_global_qf(oinfo, 1);
+out:
+ mlog_exit(status);
+ return status;
+}
+
+int ocfs2_calc_qinit_credits(struct super_block *sb, int type)
+{
+ struct ocfs2_mem_dqinfo *oinfo;
+ int features[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA };
+ struct ocfs2_dinode *lfe, *gfe;
+
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, features[type]))
+ return 0;
+
+ oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ gfe = (struct ocfs2_dinode *)oinfo->dqi_gqi_bh->b_data;
+ lfe = (struct ocfs2_dinode *)oinfo->dqi_lqi_bh->b_data;
+ /* We can extend local file + global file. In local file we
+ * can modify info, chunk header block and dquot block. In
+ * global file we can modify info, tree and leaf block */
+ return ocfs2_calc_extend_credits(sb, &lfe->id2.i_list, 0) +
+ ocfs2_calc_extend_credits(sb, &gfe->id2.i_list, 0) +
+ 3 + oinfo->dqi_gi.dqi_qtree_depth + 2;
+}
+
+static int ocfs2_acquire_dquot(struct dquot *dquot)
+{
+ handle_t *handle;
+ struct ocfs2_mem_dqinfo *oinfo =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+ struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb);
+ int status = 0;
+
+ mlog_entry("id=%u, type=%d", dquot->dq_id, dquot->dq_type);
+ /* We need an exclusive lock, because we're going to update use count
+ * and instantiate possibly new dquot structure */
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto out;
+ handle = ocfs2_start_trans(osb,
+ ocfs2_calc_qinit_credits(dquot->dq_sb, dquot->dq_type));
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_ilock;
+ }
+ status = dquot_acquire(dquot);
+ ocfs2_commit_trans(osb, handle);
+out_ilock:
+ ocfs2_unlock_global_qf(oinfo, 1);
+out:
+ mlog_exit(status);
+ return status;
+}
+
+static int ocfs2_mark_dquot_dirty(struct dquot *dquot)
+{
+ unsigned long mask = (1 << (DQ_LASTSET_B + QIF_ILIMITS_B)) |
+ (1 << (DQ_LASTSET_B + QIF_BLIMITS_B)) |
+ (1 << (DQ_LASTSET_B + QIF_INODES_B)) |
+ (1 << (DQ_LASTSET_B + QIF_SPACE_B)) |
+ (1 << (DQ_LASTSET_B + QIF_BTIME_B)) |
+ (1 << (DQ_LASTSET_B + QIF_ITIME_B));
+ int sync = 0;
+ int status;
+ struct super_block *sb = dquot->dq_sb;
+ int type = dquot->dq_type;
+ struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ handle_t *handle;
+ struct ocfs2_super *osb = OCFS2_SB(sb);
+
+ mlog_entry("id=%u, type=%d", dquot->dq_id, type);
+ dquot_mark_dquot_dirty(dquot);
+
+ /* In case user set some limits, sync dquot immediately to global
+ * quota file so that information propagates quicker */
+ spin_lock(&dq_data_lock);
+ if (dquot->dq_flags & mask)
+ sync = 1;
+ spin_unlock(&dq_data_lock);
+ if (!sync) {
+ status = ocfs2_write_dquot(dquot);
+ goto out;
+ }
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto out;
+ handle = ocfs2_start_trans(osb, OCFS2_QSYNC_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_ilock;
+ }
+ status = ocfs2_sync_dquot(dquot);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ /* Now write updated local dquot structure */
+ status = dquot_commit(dquot);
+out_trans:
+ ocfs2_commit_trans(osb, handle);
+out_ilock:
+ ocfs2_unlock_global_qf(oinfo, 1);
+out:
+ mlog_exit(status);
+ return status;
+}
+
+/* This should happen only after set_dqinfo(). */
+static int ocfs2_write_info(struct super_block *sb, int type)
+{
+ handle_t *handle;
+ int status = 0;
+ struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
+
+ mlog_entry_void();
+
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto out;
+ handle = ocfs2_start_trans(OCFS2_SB(sb), OCFS2_QINFO_WRITE_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_ilock;
+ }
+ status = dquot_commit_info(sb, type);
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+out_ilock:
+ ocfs2_unlock_global_qf(oinfo, 1);
+out:
+ mlog_exit(status);
+ return status;
+}
+
+/* This is difficult. We have to lock quota inode and start transaction
+ * in this function but we don't want to take the penalty of exlusive
+ * quota file lock when we are just going to use cached structures. So
+ * we just take read lock check whether we have dquot cached and if so,
+ * we don't have to take the write lock... */
+static int ocfs2_dquot_initialize(struct inode *inode, int type)
+{
+ handle_t *handle = NULL;
+ int status = 0;
+ struct super_block *sb = inode->i_sb;
+ struct ocfs2_mem_dqinfo *oinfo;
+ int exclusive = 0;
+ int cnt;
+ qid_t id;
+
+ mlog_entry_void();
+
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ if (type != -1 && cnt != type)
+ continue;
+ if (!sb_has_quota_active(sb, cnt))
+ continue;
+ oinfo = sb_dqinfo(sb, cnt)->dqi_priv;
+ status = ocfs2_lock_global_qf(oinfo, 0);
+ if (status < 0)
+ goto out;
+ /* This is just a performance optimization not a reliable test.
+ * Since we hold an inode lock, noone can actually release
+ * the structure until we are finished with initialization. */
+ if (inode->i_dquot[cnt] != NODQUOT) {
+ ocfs2_unlock_global_qf(oinfo, 0);
+ continue;
+ }
+ /* When we have inode lock, we know that no dquot_release() can
+ * run and thus we can safely check whether we need to
+ * read+modify global file to get quota information or whether
+ * our node already has it. */
+ if (cnt == USRQUOTA)
+ id = inode->i_uid;
+ else if (cnt == GRPQUOTA)
+ id = inode->i_gid;
+ else
+ BUG();
+ /* Obtain exclusion from quota off... */
+ down_write(&sb_dqopt(sb)->dqptr_sem);
+ exclusive = !dquot_is_cached(sb, id, cnt);
+ up_write(&sb_dqopt(sb)->dqptr_sem);
+ if (exclusive) {
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0) {
+ exclusive = 0;
+ mlog_errno(status);
+ goto out_ilock;
+ }
+ handle = ocfs2_start_trans(OCFS2_SB(sb),
+ ocfs2_calc_qinit_credits(sb, cnt));
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_ilock;
+ }
+ }
+ dquot_initialize(inode, cnt);
+ if (exclusive) {
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+ ocfs2_unlock_global_qf(oinfo, 1);
+ }
+ ocfs2_unlock_global_qf(oinfo, 0);
+ }
+ mlog_exit(0);
+ return 0;
+out_ilock:
+ if (exclusive)
+ ocfs2_unlock_global_qf(oinfo, 1);
+ ocfs2_unlock_global_qf(oinfo, 0);
+out:
+ mlog_exit(status);
+ return status;
+}
+
+static int ocfs2_dquot_drop_slow(struct inode *inode)
+{
+ int status = 0;
+ int cnt;
+ int got_lock[MAXQUOTAS] = {0, 0};
+ handle_t *handle;
+ struct super_block *sb = inode->i_sb;
+ struct ocfs2_mem_dqinfo *oinfo;
+
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ if (!sb_has_quota_active(sb, cnt))
+ continue;
+ oinfo = sb_dqinfo(sb, cnt)->dqi_priv;
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto out;
+ got_lock[cnt] = 1;
+ }
+ handle = ocfs2_start_trans(OCFS2_SB(sb),
+ ocfs2_calc_qinit_credits(sb, USRQUOTA) +
+ ocfs2_calc_qinit_credits(sb, GRPQUOTA));
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out;
+ }
+ dquot_drop(inode);
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+out:
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+ if (got_lock[cnt]) {
+ oinfo = sb_dqinfo(sb, cnt)->dqi_priv;
+ ocfs2_unlock_global_qf(oinfo, 1);
+ }
+ return status;
+}
+
+/* See the comment before ocfs2_dquot_initialize. */
+static int ocfs2_dquot_drop(struct inode *inode)
+{
+ int status = 0;
+ struct super_block *sb = inode->i_sb;
+ struct ocfs2_mem_dqinfo *oinfo;
+ int exclusive = 0;
+ int cnt;
+ int got_lock[MAXQUOTAS] = {0, 0};
+
+ mlog_entry_void();
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ if (!sb_has_quota_active(sb, cnt))
+ continue;
+ oinfo = sb_dqinfo(sb, cnt)->dqi_priv;
+ status = ocfs2_lock_global_qf(oinfo, 0);
+ if (status < 0)
+ goto out;
+ got_lock[cnt] = 1;
+ }
+ /* Lock against anyone releasing references so that when when we check
+ * we know we are not going to be last ones to release dquot */
+ down_write(&sb_dqopt(sb)->dqptr_sem);
+ /* Urgh, this is a terrible hack :( */
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
+ if (inode->i_dquot[cnt] != NODQUOT &&
+ atomic_read(&inode->i_dquot[cnt]->dq_count) > 1) {
+ exclusive = 1;
+ break;
+ }
+ }
+ if (!exclusive)
+ dquot_drop_locked(inode);
+ up_write(&sb_dqopt(sb)->dqptr_sem);
+out:
+ for (cnt = 0; cnt < MAXQUOTAS; cnt++)
+ if (got_lock[cnt]) {
+ oinfo = sb_dqinfo(sb, cnt)->dqi_priv;
+ ocfs2_unlock_global_qf(oinfo, 0);
+ }
+ /* In case we bailed out because we had to do expensive locking
+ * do it now... */
+ if (exclusive)
+ status = ocfs2_dquot_drop_slow(inode);
+ mlog_exit(status);
+ return status;
+}
+
+static struct dquot *ocfs2_alloc_dquot(struct super_block *sb, int type)
+{
+ struct ocfs2_dquot *dquot =
+ kmem_cache_zalloc(ocfs2_dquot_cachep, GFP_NOFS);
+
+ if (!dquot)
+ return NULL;
+ return &dquot->dq_dquot;
+}
+
+static void ocfs2_destroy_dquot(struct dquot *dquot)
+{
+ kmem_cache_free(ocfs2_dquot_cachep, dquot);
+}
+
+struct dquot_operations ocfs2_quota_operations = {
+ .initialize = ocfs2_dquot_initialize,
+ .drop = ocfs2_dquot_drop,
+ .alloc_space = dquot_alloc_space,
+ .alloc_inode = dquot_alloc_inode,
+ .free_space = dquot_free_space,
+ .free_inode = dquot_free_inode,
+ .transfer = dquot_transfer,
+ .write_dquot = ocfs2_write_dquot,
+ .acquire_dquot = ocfs2_acquire_dquot,
+ .release_dquot = ocfs2_release_dquot,
+ .mark_dirty = ocfs2_mark_dquot_dirty,
+ .write_info = ocfs2_write_info,
+ .alloc_dquot = ocfs2_alloc_dquot,
+ .destroy_dquot = ocfs2_destroy_dquot,
+};
+
+int ocfs2_quota_setup(void)
+{
+ ocfs2_quota_wq = create_workqueue("o2quot");
+ if (!ocfs2_quota_wq)
+ return -ENOMEM;
+ return 0;
+}
+
+void ocfs2_quota_shutdown(void)
+{
+ if (ocfs2_quota_wq) {
+ flush_workqueue(ocfs2_quota_wq);
+ destroy_workqueue(ocfs2_quota_wq);
+ ocfs2_quota_wq = NULL;
+ }
+}
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
new file mode 100644
index 000000000000..07deec5e9721
--- /dev/null
+++ b/fs/ocfs2/quota_local.c
@@ -0,0 +1,1253 @@
+/*
+ * Implementation of operations over local quota file
+ */
+
+#include <linux/fs.h>
+#include <linux/quota.h>
+#include <linux/quotaops.h>
+#include <linux/module.h>
+
+#define MLOG_MASK_PREFIX ML_QUOTA
+#include <cluster/masklog.h>
+
+#include "ocfs2_fs.h"
+#include "ocfs2.h"
+#include "inode.h"
+#include "alloc.h"
+#include "file.h"
+#include "buffer_head_io.h"
+#include "journal.h"
+#include "sysfile.h"
+#include "dlmglue.h"
+#include "quota.h"
+
+/* Number of local quota structures per block */
+static inline unsigned int ol_quota_entries_per_block(struct super_block *sb)
+{
+ return ((sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE) /
+ sizeof(struct ocfs2_local_disk_dqblk));
+}
+
+/* Number of blocks with entries in one chunk */
+static inline unsigned int ol_chunk_blocks(struct super_block *sb)
+{
+ return ((sb->s_blocksize - sizeof(struct ocfs2_local_disk_chunk) -
+ OCFS2_QBLK_RESERVED_SPACE) << 3) /
+ ol_quota_entries_per_block(sb);
+}
+
+/* Number of entries in a chunk bitmap */
+static unsigned int ol_chunk_entries(struct super_block *sb)
+{
+ return ol_chunk_blocks(sb) * ol_quota_entries_per_block(sb);
+}
+
+/* Offset of the chunk in quota file */
+static unsigned int ol_quota_chunk_block(struct super_block *sb, int c)
+{
+ /* 1 block for local quota file info, 1 block per chunk for chunk info */
+ return 1 + (ol_chunk_blocks(sb) + 1) * c;
+}
+
+static unsigned int ol_dqblk_block(struct super_block *sb, int c, int off)
+{
+ int epb = ol_quota_entries_per_block(sb);
+
+ return ol_quota_chunk_block(sb, c) + 1 + off / epb;
+}
+
+static unsigned int ol_dqblk_block_off(struct super_block *sb, int c, int off)
+{
+ int epb = ol_quota_entries_per_block(sb);
+
+ return (off % epb) * sizeof(struct ocfs2_local_disk_dqblk);
+}
+
+/* Offset of the dquot structure in the quota file */
+static loff_t ol_dqblk_off(struct super_block *sb, int c, int off)
+{
+ return (ol_dqblk_block(sb, c, off) << sb->s_blocksize_bits) +
+ ol_dqblk_block_off(sb, c, off);
+}
+
+/* Compute block number from given offset */
+static inline unsigned int ol_dqblk_file_block(struct super_block *sb, loff_t off)
+{
+ return off >> sb->s_blocksize_bits;
+}
+
+static inline unsigned int ol_dqblk_block_offset(struct super_block *sb, loff_t off)
+{
+ return off & ((1 << sb->s_blocksize_bits) - 1);
+}
+
+/* Compute offset in the chunk of a structure with the given offset */
+static int ol_dqblk_chunk_off(struct super_block *sb, int c, loff_t off)
+{
+ int epb = ol_quota_entries_per_block(sb);
+
+ return ((off >> sb->s_blocksize_bits) -
+ ol_quota_chunk_block(sb, c) - 1) * epb
+ + ((unsigned int)(off & ((1 << sb->s_blocksize_bits) - 1))) /
+ sizeof(struct ocfs2_local_disk_dqblk);
+}
+
+/* Write bufferhead into the fs */
+static int ocfs2_modify_bh(struct inode *inode, struct buffer_head *bh,
+ void (*modify)(struct buffer_head *, void *), void *private)
+{
+ struct super_block *sb = inode->i_sb;
+ handle_t *handle;
+ int status;
+
+ handle = ocfs2_start_trans(OCFS2_SB(sb), 1);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ return status;
+ }
+ status = ocfs2_journal_access_dq(handle, inode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+ return status;
+ }
+ lock_buffer(bh);
+ modify(bh, private);
+ unlock_buffer(bh);
+ status = ocfs2_journal_dirty(handle, bh);
+ if (status < 0) {
+ mlog_errno(status);
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+ return status;
+ }
+ status = ocfs2_commit_trans(OCFS2_SB(sb), handle);
+ if (status < 0) {
+ mlog_errno(status);
+ return status;
+ }
+ return 0;
+}
+
+/* Check whether we understand format of quota files */
+static int ocfs2_local_check_quota_file(struct super_block *sb, int type)
+{
+ unsigned int lmagics[MAXQUOTAS] = OCFS2_LOCAL_QMAGICS;
+ unsigned int lversions[MAXQUOTAS] = OCFS2_LOCAL_QVERSIONS;
+ unsigned int gmagics[MAXQUOTAS] = OCFS2_GLOBAL_QMAGICS;
+ unsigned int gversions[MAXQUOTAS] = OCFS2_GLOBAL_QVERSIONS;
+ unsigned int ino[MAXQUOTAS] = { USER_QUOTA_SYSTEM_INODE,
+ GROUP_QUOTA_SYSTEM_INODE };
+ struct buffer_head *bh = NULL;
+ struct inode *linode = sb_dqopt(sb)->files[type];
+ struct inode *ginode = NULL;
+ struct ocfs2_disk_dqheader *dqhead;
+ int status, ret = 0;
+
+ /* First check whether we understand local quota file */
+ status = ocfs2_read_quota_block(linode, 0, &bh);
+ if (status) {
+ mlog_errno(status);
+ mlog(ML_ERROR, "failed to read quota file header (type=%d)\n",
+ type);
+ goto out_err;
+ }
+ dqhead = (struct ocfs2_disk_dqheader *)(bh->b_data);
+ if (le32_to_cpu(dqhead->dqh_magic) != lmagics[type]) {
+ mlog(ML_ERROR, "quota file magic does not match (%u != %u),"
+ " type=%d\n", le32_to_cpu(dqhead->dqh_magic),
+ lmagics[type], type);
+ goto out_err;
+ }
+ if (le32_to_cpu(dqhead->dqh_version) != lversions[type]) {
+ mlog(ML_ERROR, "quota file version does not match (%u != %u),"
+ " type=%d\n", le32_to_cpu(dqhead->dqh_version),
+ lversions[type], type);
+ goto out_err;
+ }
+ brelse(bh);
+ bh = NULL;
+
+ /* Next check whether we understand global quota file */
+ ginode = ocfs2_get_system_file_inode(OCFS2_SB(sb), ino[type],
+ OCFS2_INVALID_SLOT);
+ if (!ginode) {
+ mlog(ML_ERROR, "cannot get global quota file inode "
+ "(type=%d)\n", type);
+ goto out_err;
+ }
+ /* Since the header is read only, we don't care about locking */
+ status = ocfs2_read_quota_block(ginode, 0, &bh);
+ if (status) {
+ mlog_errno(status);
+ mlog(ML_ERROR, "failed to read global quota file header "
+ "(type=%d)\n", type);
+ goto out_err;
+ }
+ dqhead = (struct ocfs2_disk_dqheader *)(bh->b_data);
+ if (le32_to_cpu(dqhead->dqh_magic) != gmagics[type]) {
+ mlog(ML_ERROR, "global quota file magic does not match "
+ "(%u != %u), type=%d\n",
+ le32_to_cpu(dqhead->dqh_magic), gmagics[type], type);
+ goto out_err;
+ }
+ if (le32_to_cpu(dqhead->dqh_version) != gversions[type]) {
+ mlog(ML_ERROR, "global quota file version does not match "
+ "(%u != %u), type=%d\n",
+ le32_to_cpu(dqhead->dqh_version), gversions[type],
+ type);
+ goto out_err;
+ }
+
+ ret = 1;
+out_err:
+ brelse(bh);
+ iput(ginode);
+ return ret;
+}
+
+/* Release given list of quota file chunks */
+static void ocfs2_release_local_quota_bitmaps(struct list_head *head)
+{
+ struct ocfs2_quota_chunk *pos, *next;
+
+ list_for_each_entry_safe(pos, next, head, qc_chunk) {
+ list_del(&pos->qc_chunk);
+ brelse(pos->qc_headerbh);
+ kmem_cache_free(ocfs2_qf_chunk_cachep, pos);
+ }
+}
+
+/* Load quota bitmaps into memory */
+static int ocfs2_load_local_quota_bitmaps(struct inode *inode,
+ struct ocfs2_local_disk_dqinfo *ldinfo,
+ struct list_head *head)
+{
+ struct ocfs2_quota_chunk *newchunk;
+ int i, status;
+
+ INIT_LIST_HEAD(head);
+ for (i = 0; i < le32_to_cpu(ldinfo->dqi_chunks); i++) {
+ newchunk = kmem_cache_alloc(ocfs2_qf_chunk_cachep, GFP_NOFS);
+ if (!newchunk) {
+ ocfs2_release_local_quota_bitmaps(head);
+ return -ENOMEM;
+ }
+ newchunk->qc_num = i;
+ newchunk->qc_headerbh = NULL;
+ status = ocfs2_read_quota_block(inode,
+ ol_quota_chunk_block(inode->i_sb, i),
+ &newchunk->qc_headerbh);
+ if (status) {
+ mlog_errno(status);
+ kmem_cache_free(ocfs2_qf_chunk_cachep, newchunk);
+ ocfs2_release_local_quota_bitmaps(head);
+ return status;
+ }
+ list_add_tail(&newchunk->qc_chunk, head);
+ }
+ return 0;
+}
+
+static void olq_update_info(struct buffer_head *bh, void *private)
+{
+ struct mem_dqinfo *info = private;
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ struct ocfs2_local_disk_dqinfo *ldinfo;
+
+ ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data +
+ OCFS2_LOCAL_INFO_OFF);
+ spin_lock(&dq_data_lock);
+ ldinfo->dqi_flags = cpu_to_le32(info->dqi_flags & DQF_MASK);
+ ldinfo->dqi_chunks = cpu_to_le32(oinfo->dqi_chunks);
+ ldinfo->dqi_blocks = cpu_to_le32(oinfo->dqi_blocks);
+ spin_unlock(&dq_data_lock);
+}
+
+static int ocfs2_add_recovery_chunk(struct super_block *sb,
+ struct ocfs2_local_disk_chunk *dchunk,
+ int chunk,
+ struct list_head *head)
+{
+ struct ocfs2_recovery_chunk *rc;
+
+ rc = kmalloc(sizeof(struct ocfs2_recovery_chunk), GFP_NOFS);
+ if (!rc)
+ return -ENOMEM;
+ rc->rc_chunk = chunk;
+ rc->rc_bitmap = kmalloc(sb->s_blocksize, GFP_NOFS);
+ if (!rc->rc_bitmap) {
+ kfree(rc);
+ return -ENOMEM;
+ }
+ memcpy(rc->rc_bitmap, dchunk->dqc_bitmap,
+ (ol_chunk_entries(sb) + 7) >> 3);
+ list_add_tail(&rc->rc_list, head);
+ return 0;
+}
+
+static void free_recovery_list(struct list_head *head)
+{
+ struct ocfs2_recovery_chunk *next;
+ struct ocfs2_recovery_chunk *rchunk;
+
+ list_for_each_entry_safe(rchunk, next, head, rc_list) {
+ list_del(&rchunk->rc_list);
+ kfree(rchunk->rc_bitmap);
+ kfree(rchunk);
+ }
+}
+
+void ocfs2_free_quota_recovery(struct ocfs2_quota_recovery *rec)
+{
+ int type;
+
+ for (type = 0; type < MAXQUOTAS; type++)
+ free_recovery_list(&(rec->r_list[type]));
+ kfree(rec);
+}
+
+/* Load entries in our quota file we have to recover*/
+static int ocfs2_recovery_load_quota(struct inode *lqinode,
+ struct ocfs2_local_disk_dqinfo *ldinfo,
+ int type,
+ struct list_head *head)
+{
+ struct super_block *sb = lqinode->i_sb;
+ struct buffer_head *hbh;
+ struct ocfs2_local_disk_chunk *dchunk;
+ int i, chunks = le32_to_cpu(ldinfo->dqi_chunks);
+ int status = 0;
+
+ for (i = 0; i < chunks; i++) {
+ hbh = NULL;
+ status = ocfs2_read_quota_block(lqinode,
+ ol_quota_chunk_block(sb, i),
+ &hbh);
+ if (status) {
+ mlog_errno(status);
+ break;
+ }
+ dchunk = (struct ocfs2_local_disk_chunk *)hbh->b_data;
+ if (le32_to_cpu(dchunk->dqc_free) < ol_chunk_entries(sb))
+ status = ocfs2_add_recovery_chunk(sb, dchunk, i, head);
+ brelse(hbh);
+ if (status < 0)
+ break;
+ }
+ if (status < 0)
+ free_recovery_list(head);
+ return status;
+}
+
+static struct ocfs2_quota_recovery *ocfs2_alloc_quota_recovery(void)
+{
+ int type;
+ struct ocfs2_quota_recovery *rec;
+
+ rec = kmalloc(sizeof(struct ocfs2_quota_recovery), GFP_NOFS);
+ if (!rec)
+ return NULL;
+ for (type = 0; type < MAXQUOTAS; type++)
+ INIT_LIST_HEAD(&(rec->r_list[type]));
+ return rec;
+}
+
+/* Load information we need for quota recovery into memory */
+struct ocfs2_quota_recovery *ocfs2_begin_quota_recovery(
+ struct ocfs2_super *osb,
+ int slot_num)
+{
+ unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA};
+ unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE,
+ LOCAL_GROUP_QUOTA_SYSTEM_INODE };
+ struct super_block *sb = osb->sb;
+ struct ocfs2_local_disk_dqinfo *ldinfo;
+ struct inode *lqinode;
+ struct buffer_head *bh;
+ int type;
+ int status = 0;
+ struct ocfs2_quota_recovery *rec;
+
+ mlog(ML_NOTICE, "Beginning quota recovery in slot %u\n", slot_num);
+ rec = ocfs2_alloc_quota_recovery();
+ if (!rec)
+ return ERR_PTR(-ENOMEM);
+ /* First init... */
+
+ for (type = 0; type < MAXQUOTAS; type++) {
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type]))
+ continue;
+ /* At this point, journal of the slot is already replayed so
+ * we can trust metadata and data of the quota file */
+ lqinode = ocfs2_get_system_file_inode(osb, ino[type], slot_num);
+ if (!lqinode) {
+ status = -ENOENT;
+ goto out;
+ }
+ status = ocfs2_inode_lock_full(lqinode, NULL, 1,
+ OCFS2_META_LOCK_RECOVERY);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_put;
+ }
+ /* Now read local header */
+ bh = NULL;
+ status = ocfs2_read_quota_block(lqinode, 0, &bh);
+ if (status) {
+ mlog_errno(status);
+ mlog(ML_ERROR, "failed to read quota file info header "
+ "(slot=%d type=%d)\n", slot_num, type);
+ goto out_lock;
+ }
+ ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data +
+ OCFS2_LOCAL_INFO_OFF);
+ status = ocfs2_recovery_load_quota(lqinode, ldinfo, type,
+ &rec->r_list[type]);
+ brelse(bh);
+out_lock:
+ ocfs2_inode_unlock(lqinode, 1);
+out_put:
+ iput(lqinode);
+ if (status < 0)
+ break;
+ }
+out:
+ if (status < 0) {
+ ocfs2_free_quota_recovery(rec);
+ rec = ERR_PTR(status);
+ }
+ return rec;
+}
+
+/* Sync changes in local quota file into global quota file and
+ * reinitialize local quota file.
+ * The function expects local quota file to be already locked and
+ * dqonoff_mutex locked. */
+static int ocfs2_recover_local_quota_file(struct inode *lqinode,
+ int type,
+ struct ocfs2_quota_recovery *rec)
+{
+ struct super_block *sb = lqinode->i_sb;
+ struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ struct ocfs2_local_disk_chunk *dchunk;
+ struct ocfs2_local_disk_dqblk *dqblk;
+ struct dquot *dquot;
+ handle_t *handle;
+ struct buffer_head *hbh = NULL, *qbh = NULL;
+ int status = 0;
+ int bit, chunk;
+ struct ocfs2_recovery_chunk *rchunk, *next;
+ qsize_t spacechange, inodechange;
+
+ mlog_entry("ino=%lu type=%u", (unsigned long)lqinode->i_ino, type);
+
+ status = ocfs2_lock_global_qf(oinfo, 1);
+ if (status < 0)
+ goto out;
+
+ list_for_each_entry_safe(rchunk, next, &(rec->r_list[type]), rc_list) {
+ chunk = rchunk->rc_chunk;
+ hbh = NULL;
+ status = ocfs2_read_quota_block(lqinode,
+ ol_quota_chunk_block(sb, chunk),
+ &hbh);
+ if (status) {
+ mlog_errno(status);
+ break;
+ }
+ dchunk = (struct ocfs2_local_disk_chunk *)hbh->b_data;
+ for_each_bit(bit, rchunk->rc_bitmap, ol_chunk_entries(sb)) {
+ qbh = NULL;
+ status = ocfs2_read_quota_block(lqinode,
+ ol_dqblk_block(sb, chunk, bit),
+ &qbh);
+ if (status) {
+ mlog_errno(status);
+ break;
+ }
+ dqblk = (struct ocfs2_local_disk_dqblk *)(qbh->b_data +
+ ol_dqblk_block_off(sb, chunk, bit));
+ dquot = dqget(sb, le64_to_cpu(dqblk->dqb_id), type);
+ if (!dquot) {
+ status = -EIO;
+ mlog(ML_ERROR, "Failed to get quota structure "
+ "for id %u, type %d. Cannot finish quota "
+ "file recovery.\n",
+ (unsigned)le64_to_cpu(dqblk->dqb_id),
+ type);
+ goto out_put_bh;
+ }
+ handle = ocfs2_start_trans(OCFS2_SB(sb),
+ OCFS2_QSYNC_CREDITS);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_put_dquot;
+ }
+ mutex_lock(&sb_dqopt(sb)->dqio_mutex);
+ spin_lock(&dq_data_lock);
+ /* Add usage from quota entry into quota changes
+ * of our node. Auxiliary variables are important
+ * due to signedness */
+ spacechange = le64_to_cpu(dqblk->dqb_spacemod);
+ inodechange = le64_to_cpu(dqblk->dqb_inodemod);
+ dquot->dq_dqb.dqb_curspace += spacechange;
+ dquot->dq_dqb.dqb_curinodes += inodechange;
+ spin_unlock(&dq_data_lock);
+ /* We want to drop reference held by the crashed
+ * node. Since we have our own reference we know
+ * global structure actually won't be freed. */
+ status = ocfs2_global_release_dquot(dquot);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_commit;
+ }
+ /* Release local quota file entry */
+ status = ocfs2_journal_access_dq(handle, lqinode,
+ qbh, OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_commit;
+ }
+ lock_buffer(qbh);
+ WARN_ON(!ocfs2_test_bit(bit, dchunk->dqc_bitmap));
+ ocfs2_clear_bit(bit, dchunk->dqc_bitmap);
+ le32_add_cpu(&dchunk->dqc_free, 1);
+ unlock_buffer(qbh);
+ status = ocfs2_journal_dirty(handle, qbh);
+ if (status < 0)
+ mlog_errno(status);
+out_commit:
+ mutex_unlock(&sb_dqopt(sb)->dqio_mutex);
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+out_put_dquot:
+ dqput(dquot);
+out_put_bh:
+ brelse(qbh);
+ if (status < 0)
+ break;
+ }
+ brelse(hbh);
+ list_del(&rchunk->rc_list);
+ kfree(rchunk->rc_bitmap);
+ kfree(rchunk);
+ if (status < 0)
+ break;
+ }
+ ocfs2_unlock_global_qf(oinfo, 1);
+out:
+ if (status < 0)
+ free_recovery_list(&(rec->r_list[type]));
+ mlog_exit(status);
+ return status;
+}
+
+/* Recover local quota files for given node different from us */
+int ocfs2_finish_quota_recovery(struct ocfs2_super *osb,
+ struct ocfs2_quota_recovery *rec,
+ int slot_num)
+{
+ unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE,
+ LOCAL_GROUP_QUOTA_SYSTEM_INODE };
+ struct super_block *sb = osb->sb;
+ struct ocfs2_local_disk_dqinfo *ldinfo;
+ struct buffer_head *bh;
+ handle_t *handle;
+ int type;
+ int status = 0;
+ struct inode *lqinode;
+ unsigned int flags;
+
+ mlog(ML_NOTICE, "Finishing quota recovery in slot %u\n", slot_num);
+ mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
+ for (type = 0; type < MAXQUOTAS; type++) {
+ if (list_empty(&(rec->r_list[type])))
+ continue;
+ mlog(0, "Recovering quota in slot %d\n", slot_num);
+ lqinode = ocfs2_get_system_file_inode(osb, ino[type], slot_num);
+ if (!lqinode) {
+ status = -ENOENT;
+ goto out;
+ }
+ status = ocfs2_inode_lock_full(lqinode, NULL, 1,
+ OCFS2_META_LOCK_NOQUEUE);
+ /* Someone else is holding the lock? Then he must be
+ * doing the recovery. Just skip the file... */
+ if (status == -EAGAIN) {
+ mlog(ML_NOTICE, "skipping quota recovery for slot %d "
+ "because quota file is locked.\n", slot_num);
+ status = 0;
+ goto out_put;
+ } else if (status < 0) {
+ mlog_errno(status);
+ goto out_put;
+ }
+ /* Now read local header */
+ bh = NULL;
+ status = ocfs2_read_quota_block(lqinode, 0, &bh);
+ if (status) {
+ mlog_errno(status);
+ mlog(ML_ERROR, "failed to read quota file info header "
+ "(slot=%d type=%d)\n", slot_num, type);
+ goto out_lock;
+ }
+ ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data +
+ OCFS2_LOCAL_INFO_OFF);
+ /* Is recovery still needed? */
+ flags = le32_to_cpu(ldinfo->dqi_flags);
+ if (!(flags & OLQF_CLEAN))
+ status = ocfs2_recover_local_quota_file(lqinode,
+ type,
+ rec);
+ /* We don't want to mark file as clean when it is actually
+ * active */
+ if (slot_num == osb->slot_num)
+ goto out_bh;
+ /* Mark quota file as clean if we are recovering quota file of
+ * some other node. */
+ handle = ocfs2_start_trans(osb, 1);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out_bh;
+ }
+ status = ocfs2_journal_access_dq(handle, lqinode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ lock_buffer(bh);
+ ldinfo->dqi_flags = cpu_to_le32(flags | OLQF_CLEAN);
+ unlock_buffer(bh);
+ status = ocfs2_journal_dirty(handle, bh);
+ if (status < 0)
+ mlog_errno(status);
+out_trans:
+ ocfs2_commit_trans(osb, handle);
+out_bh:
+ brelse(bh);
+out_lock:
+ ocfs2_inode_unlock(lqinode, 1);
+out_put:
+ iput(lqinode);
+ if (status < 0)
+ break;
+ }
+out:
+ mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
+ kfree(rec);
+ return status;
+}
+
+/* Read information header from quota file */
+static int ocfs2_local_read_info(struct super_block *sb, int type)
+{
+ struct ocfs2_local_disk_dqinfo *ldinfo;
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo;
+ struct inode *lqinode = sb_dqopt(sb)->files[type];
+ int status;
+ struct buffer_head *bh = NULL;
+ struct ocfs2_quota_recovery *rec;
+ int locked = 0;
+
+ info->dqi_maxblimit = 0x7fffffffffffffffLL;
+ info->dqi_maxilimit = 0x7fffffffffffffffLL;
+ oinfo = kmalloc(sizeof(struct ocfs2_mem_dqinfo), GFP_NOFS);
+ if (!oinfo) {
+ mlog(ML_ERROR, "failed to allocate memory for ocfs2 quota"
+ " info.");
+ goto out_err;
+ }
+ info->dqi_priv = oinfo;
+ oinfo->dqi_type = type;
+ INIT_LIST_HEAD(&oinfo->dqi_chunk);
+ oinfo->dqi_rec = NULL;
+ oinfo->dqi_lqi_bh = NULL;
+ oinfo->dqi_ibh = NULL;
+
+ status = ocfs2_global_read_info(sb, type);
+ if (status < 0)
+ goto out_err;
+
+ status = ocfs2_inode_lock(lqinode, &oinfo->dqi_lqi_bh, 1);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_err;
+ }
+ locked = 1;
+
+ /* Now read local header */
+ status = ocfs2_read_quota_block(lqinode, 0, &bh);
+ if (status) {
+ mlog_errno(status);
+ mlog(ML_ERROR, "failed to read quota file info header "
+ "(type=%d)\n", type);
+ goto out_err;
+ }
+ ldinfo = (struct ocfs2_local_disk_dqinfo *)(bh->b_data +
+ OCFS2_LOCAL_INFO_OFF);
+ info->dqi_flags = le32_to_cpu(ldinfo->dqi_flags);
+ oinfo->dqi_chunks = le32_to_cpu(ldinfo->dqi_chunks);
+ oinfo->dqi_blocks = le32_to_cpu(ldinfo->dqi_blocks);
+ oinfo->dqi_ibh = bh;
+
+ /* We crashed when using local quota file? */
+ if (!(info->dqi_flags & OLQF_CLEAN)) {
+ rec = OCFS2_SB(sb)->quota_rec;
+ if (!rec) {
+ rec = ocfs2_alloc_quota_recovery();
+ if (!rec) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto out_err;
+ }
+ OCFS2_SB(sb)->quota_rec = rec;
+ }
+
+ status = ocfs2_recovery_load_quota(lqinode, ldinfo, type,
+ &rec->r_list[type]);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_err;
+ }
+ }
+
+ status = ocfs2_load_local_quota_bitmaps(lqinode,
+ ldinfo,
+ &oinfo->dqi_chunk);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_err;
+ }
+
+ /* Now mark quota file as used */
+ info->dqi_flags &= ~OLQF_CLEAN;
+ status = ocfs2_modify_bh(lqinode, bh, olq_update_info, info);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_err;
+ }
+
+ return 0;
+out_err:
+ if (oinfo) {
+ iput(oinfo->dqi_gqinode);
+ ocfs2_simple_drop_lockres(OCFS2_SB(sb), &oinfo->dqi_gqlock);
+ ocfs2_lock_res_free(&oinfo->dqi_gqlock);
+ brelse(oinfo->dqi_lqi_bh);
+ if (locked)
+ ocfs2_inode_unlock(lqinode, 1);
+ ocfs2_release_local_quota_bitmaps(&oinfo->dqi_chunk);
+ kfree(oinfo);
+ }
+ brelse(bh);
+ return -1;
+}
+
+/* Write local info to quota file */
+static int ocfs2_local_write_info(struct super_block *sb, int type)
+{
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct buffer_head *bh = ((struct ocfs2_mem_dqinfo *)info->dqi_priv)
+ ->dqi_ibh;
+ int status;
+
+ status = ocfs2_modify_bh(sb_dqopt(sb)->files[type], bh, olq_update_info,
+ info);
+ if (status < 0) {
+ mlog_errno(status);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Release info from memory */
+static int ocfs2_local_free_info(struct super_block *sb, int type)
+{
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ struct ocfs2_quota_chunk *chunk;
+ struct ocfs2_local_disk_chunk *dchunk;
+ int mark_clean = 1, len;
+ int status;
+
+ /* At this point we know there are no more dquots and thus
+ * even if there's some sync in the pdflush queue, it won't
+ * find any dquots and return without doing anything */
+ cancel_delayed_work_sync(&oinfo->dqi_sync_work);
+ iput(oinfo->dqi_gqinode);
+ ocfs2_simple_drop_lockres(OCFS2_SB(sb), &oinfo->dqi_gqlock);
+ ocfs2_lock_res_free(&oinfo->dqi_gqlock);
+ list_for_each_entry(chunk, &oinfo->dqi_chunk, qc_chunk) {
+ dchunk = (struct ocfs2_local_disk_chunk *)
+ (chunk->qc_headerbh->b_data);
+ if (chunk->qc_num < oinfo->dqi_chunks - 1) {
+ len = ol_chunk_entries(sb);
+ } else {
+ len = (oinfo->dqi_blocks -
+ ol_quota_chunk_block(sb, chunk->qc_num) - 1)
+ * ol_quota_entries_per_block(sb);
+ }
+ /* Not all entries free? Bug! */
+ if (le32_to_cpu(dchunk->dqc_free) != len) {
+ mlog(ML_ERROR, "releasing quota file with used "
+ "entries (type=%d)\n", type);
+ mark_clean = 0;
+ }
+ }
+ ocfs2_release_local_quota_bitmaps(&oinfo->dqi_chunk);
+
+ /* dqonoff_mutex protects us against racing with recovery thread... */
+ if (oinfo->dqi_rec) {
+ ocfs2_free_quota_recovery(oinfo->dqi_rec);
+ mark_clean = 0;
+ }
+
+ if (!mark_clean)
+ goto out;
+
+ /* Mark local file as clean */
+ info->dqi_flags |= OLQF_CLEAN;
+ status = ocfs2_modify_bh(sb_dqopt(sb)->files[type],
+ oinfo->dqi_ibh,
+ olq_update_info,
+ info);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+
+out:
+ ocfs2_inode_unlock(sb_dqopt(sb)->files[type], 1);
+ brelse(oinfo->dqi_ibh);
+ brelse(oinfo->dqi_lqi_bh);
+ kfree(oinfo);
+ return 0;
+}
+
+static void olq_set_dquot(struct buffer_head *bh, void *private)
+{
+ struct ocfs2_dquot *od = private;
+ struct ocfs2_local_disk_dqblk *dqblk;
+ struct super_block *sb = od->dq_dquot.dq_sb;
+
+ dqblk = (struct ocfs2_local_disk_dqblk *)(bh->b_data
+ + ol_dqblk_block_offset(sb, od->dq_local_off));
+
+ dqblk->dqb_id = cpu_to_le64(od->dq_dquot.dq_id);
+ spin_lock(&dq_data_lock);
+ dqblk->dqb_spacemod = cpu_to_le64(od->dq_dquot.dq_dqb.dqb_curspace -
+ od->dq_origspace);
+ dqblk->dqb_inodemod = cpu_to_le64(od->dq_dquot.dq_dqb.dqb_curinodes -
+ od->dq_originodes);
+ spin_unlock(&dq_data_lock);
+ mlog(0, "Writing local dquot %u space %lld inodes %lld\n",
+ od->dq_dquot.dq_id, (long long)le64_to_cpu(dqblk->dqb_spacemod),
+ (long long)le64_to_cpu(dqblk->dqb_inodemod));
+}
+
+/* Write dquot to local quota file */
+static int ocfs2_local_write_dquot(struct dquot *dquot)
+{
+ struct super_block *sb = dquot->dq_sb;
+ struct ocfs2_dquot *od = OCFS2_DQUOT(dquot);
+ struct buffer_head *bh = NULL;
+ int status;
+
+ status = ocfs2_read_quota_block(sb_dqopt(sb)->files[dquot->dq_type],
+ ol_dqblk_file_block(sb, od->dq_local_off),
+ &bh);
+ if (status) {
+ mlog_errno(status);
+ goto out;
+ }
+ status = ocfs2_modify_bh(sb_dqopt(sb)->files[dquot->dq_type], bh,
+ olq_set_dquot, od);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+out:
+ brelse(bh);
+ return status;
+}
+
+/* Find free entry in local quota file */
+static struct ocfs2_quota_chunk *ocfs2_find_free_entry(struct super_block *sb,
+ int type,
+ int *offset)
+{
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ struct ocfs2_quota_chunk *chunk;
+ struct ocfs2_local_disk_chunk *dchunk;
+ int found = 0, len;
+
+ list_for_each_entry(chunk, &oinfo->dqi_chunk, qc_chunk) {
+ dchunk = (struct ocfs2_local_disk_chunk *)
+ chunk->qc_headerbh->b_data;
+ if (le32_to_cpu(dchunk->dqc_free) > 0) {
+ found = 1;
+ break;
+ }
+ }
+ if (!found)
+ return NULL;
+
+ if (chunk->qc_num < oinfo->dqi_chunks - 1) {
+ len = ol_chunk_entries(sb);
+ } else {
+ len = (oinfo->dqi_blocks -
+ ol_quota_chunk_block(sb, chunk->qc_num) - 1)
+ * ol_quota_entries_per_block(sb);
+ }
+
+ found = ocfs2_find_next_zero_bit(dchunk->dqc_bitmap, len, 0);
+ /* We failed? */
+ if (found == len) {
+ mlog(ML_ERROR, "Did not find empty entry in chunk %d with %u"
+ " entries free (type=%d)\n", chunk->qc_num,
+ le32_to_cpu(dchunk->dqc_free), type);
+ return ERR_PTR(-EIO);
+ }
+ *offset = found;
+ return chunk;
+}
+
+/* Add new chunk to the local quota file */
+static struct ocfs2_quota_chunk *ocfs2_local_quota_add_chunk(
+ struct super_block *sb,
+ int type,
+ int *offset)
+{
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ struct inode *lqinode = sb_dqopt(sb)->files[type];
+ struct ocfs2_quota_chunk *chunk = NULL;
+ struct ocfs2_local_disk_chunk *dchunk;
+ int status;
+ handle_t *handle;
+ struct buffer_head *bh = NULL;
+ u64 p_blkno;
+
+ /* We are protected by dqio_sem so no locking needed */
+ status = ocfs2_extend_no_holes(lqinode,
+ lqinode->i_size + 2 * sb->s_blocksize,
+ lqinode->i_size);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ status = ocfs2_simple_size_update(lqinode, oinfo->dqi_lqi_bh,
+ lqinode->i_size + 2 * sb->s_blocksize);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+
+ chunk = kmem_cache_alloc(ocfs2_qf_chunk_cachep, GFP_NOFS);
+ if (!chunk) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto out;
+ }
+
+ down_read(&OCFS2_I(lqinode)->ip_alloc_sem);
+ status = ocfs2_extent_map_get_blocks(lqinode, oinfo->dqi_blocks,
+ &p_blkno, NULL, NULL);
+ up_read(&OCFS2_I(lqinode)->ip_alloc_sem);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ bh = sb_getblk(sb, p_blkno);
+ if (!bh) {
+ status = -ENOMEM;
+ mlog_errno(status);
+ goto out;
+ }
+ dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data;
+
+ handle = ocfs2_start_trans(OCFS2_SB(sb), 2);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out;
+ }
+
+ status = ocfs2_journal_access_dq(handle, lqinode, bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ lock_buffer(bh);
+ dchunk->dqc_free = cpu_to_le32(ol_quota_entries_per_block(sb));
+ memset(dchunk->dqc_bitmap, 0,
+ sb->s_blocksize - sizeof(struct ocfs2_local_disk_chunk) -
+ OCFS2_QBLK_RESERVED_SPACE);
+ set_buffer_uptodate(bh);
+ unlock_buffer(bh);
+ status = ocfs2_journal_dirty(handle, bh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+
+ oinfo->dqi_blocks += 2;
+ oinfo->dqi_chunks++;
+ status = ocfs2_local_write_info(sb, type);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ status = ocfs2_commit_trans(OCFS2_SB(sb), handle);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+
+ list_add_tail(&chunk->qc_chunk, &oinfo->dqi_chunk);
+ chunk->qc_num = list_entry(chunk->qc_chunk.prev,
+ struct ocfs2_quota_chunk,
+ qc_chunk)->qc_num + 1;
+ chunk->qc_headerbh = bh;
+ *offset = 0;
+ return chunk;
+out_trans:
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+out:
+ brelse(bh);
+ kmem_cache_free(ocfs2_qf_chunk_cachep, chunk);
+ return ERR_PTR(status);
+}
+
+/* Find free entry in local quota file */
+static struct ocfs2_quota_chunk *ocfs2_extend_local_quota_file(
+ struct super_block *sb,
+ int type,
+ int *offset)
+{
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
+ struct ocfs2_quota_chunk *chunk;
+ struct inode *lqinode = sb_dqopt(sb)->files[type];
+ struct ocfs2_local_disk_chunk *dchunk;
+ int epb = ol_quota_entries_per_block(sb);
+ unsigned int chunk_blocks;
+ int status;
+ handle_t *handle;
+
+ if (list_empty(&oinfo->dqi_chunk))
+ return ocfs2_local_quota_add_chunk(sb, type, offset);
+ /* Is the last chunk full? */
+ chunk = list_entry(oinfo->dqi_chunk.prev,
+ struct ocfs2_quota_chunk, qc_chunk);
+ chunk_blocks = oinfo->dqi_blocks -
+ ol_quota_chunk_block(sb, chunk->qc_num) - 1;
+ if (ol_chunk_blocks(sb) == chunk_blocks)
+ return ocfs2_local_quota_add_chunk(sb, type, offset);
+
+ /* We are protected by dqio_sem so no locking needed */
+ status = ocfs2_extend_no_holes(lqinode,
+ lqinode->i_size + sb->s_blocksize,
+ lqinode->i_size);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ status = ocfs2_simple_size_update(lqinode, oinfo->dqi_lqi_bh,
+ lqinode->i_size + sb->s_blocksize);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ handle = ocfs2_start_trans(OCFS2_SB(sb), 2);
+ if (IS_ERR(handle)) {
+ status = PTR_ERR(handle);
+ mlog_errno(status);
+ goto out;
+ }
+ status = ocfs2_journal_access_dq(handle, lqinode, chunk->qc_headerbh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+
+ dchunk = (struct ocfs2_local_disk_chunk *)chunk->qc_headerbh->b_data;
+ lock_buffer(chunk->qc_headerbh);
+ le32_add_cpu(&dchunk->dqc_free, ol_quota_entries_per_block(sb));
+ unlock_buffer(chunk->qc_headerbh);
+ status = ocfs2_journal_dirty(handle, chunk->qc_headerbh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+ oinfo->dqi_blocks++;
+ status = ocfs2_local_write_info(sb, type);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_trans;
+ }
+
+ status = ocfs2_commit_trans(OCFS2_SB(sb), handle);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ *offset = chunk_blocks * epb;
+ return chunk;
+out_trans:
+ ocfs2_commit_trans(OCFS2_SB(sb), handle);
+out:
+ return ERR_PTR(status);
+}
+
+static void olq_alloc_dquot(struct buffer_head *bh, void *private)
+{
+ int *offset = private;
+ struct ocfs2_local_disk_chunk *dchunk;
+
+ dchunk = (struct ocfs2_local_disk_chunk *)bh->b_data;
+ ocfs2_set_bit(*offset, dchunk->dqc_bitmap);
+ le32_add_cpu(&dchunk->dqc_free, -1);
+}
+
+/* Create dquot in the local file for given id */
+static int ocfs2_create_local_dquot(struct dquot *dquot)
+{
+ struct super_block *sb = dquot->dq_sb;
+ int type = dquot->dq_type;
+ struct inode *lqinode = sb_dqopt(sb)->files[type];
+ struct ocfs2_quota_chunk *chunk;
+ struct ocfs2_dquot *od = OCFS2_DQUOT(dquot);
+ int offset;
+ int status;
+
+ chunk = ocfs2_find_free_entry(sb, type, &offset);
+ if (!chunk) {
+ chunk = ocfs2_extend_local_quota_file(sb, type, &offset);
+ if (IS_ERR(chunk))
+ return PTR_ERR(chunk);
+ } else if (IS_ERR(chunk)) {
+ return PTR_ERR(chunk);
+ }
+ od->dq_local_off = ol_dqblk_off(sb, chunk->qc_num, offset);
+ od->dq_chunk = chunk;
+
+ /* Initialize dquot structure on disk */
+ status = ocfs2_local_write_dquot(dquot);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+
+ /* Mark structure as allocated */
+ status = ocfs2_modify_bh(lqinode, chunk->qc_headerbh, olq_alloc_dquot,
+ &offset);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+out:
+ return status;
+}
+
+/* Create entry in local file for dquot, load data from the global file */
+static int ocfs2_local_read_dquot(struct dquot *dquot)
+{
+ int status;
+
+ mlog_entry("id=%u, type=%d\n", dquot->dq_id, dquot->dq_type);
+
+ status = ocfs2_global_read_dquot(dquot);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_err;
+ }
+
+ /* Now create entry in the local quota file */
+ status = ocfs2_create_local_dquot(dquot);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out_err;
+ }
+ mlog_exit(0);
+ return 0;
+out_err:
+ mlog_exit(status);
+ return status;
+}
+
+/* Release dquot structure from local quota file. ocfs2_release_dquot() has
+ * already started a transaction and obtained exclusive lock for global
+ * quota file. */
+static int ocfs2_local_release_dquot(struct dquot *dquot)
+{
+ int status;
+ int type = dquot->dq_type;
+ struct ocfs2_dquot *od = OCFS2_DQUOT(dquot);
+ struct super_block *sb = dquot->dq_sb;
+ struct ocfs2_local_disk_chunk *dchunk;
+ int offset;
+ handle_t *handle = journal_current_handle();
+
+ BUG_ON(!handle);
+ /* First write all local changes to global file */
+ status = ocfs2_global_release_dquot(dquot);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+
+ status = ocfs2_journal_access_dq(handle, sb_dqopt(sb)->files[type],
+ od->dq_chunk->qc_headerbh, OCFS2_JOURNAL_ACCESS_WRITE);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ offset = ol_dqblk_chunk_off(sb, od->dq_chunk->qc_num,
+ od->dq_local_off);
+ dchunk = (struct ocfs2_local_disk_chunk *)
+ (od->dq_chunk->qc_headerbh->b_data);
+ /* Mark structure as freed */
+ lock_buffer(od->dq_chunk->qc_headerbh);
+ ocfs2_clear_bit(offset, dchunk->dqc_bitmap);
+ le32_add_cpu(&dchunk->dqc_free, 1);
+ unlock_buffer(od->dq_chunk->qc_headerbh);
+ status = ocfs2_journal_dirty(handle, od->dq_chunk->qc_headerbh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto out;
+ }
+ status = 0;
+out:
+ /* Clear the read bit so that next time someone uses this
+ * dquot he reads fresh info from disk and allocates local
+ * dquot structure */
+ clear_bit(DQ_READ_B, &dquot->dq_flags);
+ return status;
+}
+
+static struct quota_format_ops ocfs2_format_ops = {
+ .check_quota_file = ocfs2_local_check_quota_file,
+ .read_file_info = ocfs2_local_read_info,
+ .write_file_info = ocfs2_global_write_info,
+ .free_file_info = ocfs2_local_free_info,
+ .read_dqblk = ocfs2_local_read_dquot,
+ .commit_dqblk = ocfs2_local_write_dquot,
+ .release_dqblk = ocfs2_local_release_dquot,
+};
+
+struct quota_format_type ocfs2_quota_format = {
+ .qf_fmt_id = QFMT_OCFS2,
+ .qf_ops = &ocfs2_format_ops,
+ .qf_owner = THIS_MODULE
+};
diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c
index ffd48db229a7..424adaa5f900 100644
--- a/fs/ocfs2/resize.c
+++ b/fs/ocfs2/resize.c
@@ -106,8 +106,8 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
mlog_entry("(new_clusters=%d, first_new_cluster = %u)\n",
new_clusters, first_new_cluster);
- ret = ocfs2_journal_access(handle, bm_inode, group_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_gd(handle, bm_inode, group_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -141,8 +141,8 @@ static int ocfs2_update_last_group_and_inode(handle_t *handle,
}
/* update the inode accordingly. */
- ret = ocfs2_journal_access(handle, bm_inode, bm_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, bm_inode, bm_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto out_rollback;
@@ -314,6 +314,10 @@ int ocfs2_group_extend(struct inode * inode, int new_clusters)
fe = (struct ocfs2_dinode *)main_bm_bh->b_data;
+ /* main_bm_bh is validated by inode read inside ocfs2_inode_lock(),
+ * so any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
+
if (le16_to_cpu(fe->id2.i_chain.cl_cpg) !=
ocfs2_group_bitmap_size(osb->sb) * 8) {
mlog(ML_ERROR, "The disk is too old and small. "
@@ -322,30 +326,18 @@ int ocfs2_group_extend(struct inode * inode, int new_clusters)
goto out_unlock;
}
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(main_bm_inode->i_sb, fe);
- ret = -EIO;
- goto out_unlock;
- }
-
first_new_cluster = le32_to_cpu(fe->i_clusters);
lgd_blkno = ocfs2_which_cluster_group(main_bm_inode,
first_new_cluster - 1);
- ret = ocfs2_read_block(main_bm_inode, lgd_blkno, &group_bh);
+ ret = ocfs2_read_group_descriptor(main_bm_inode, fe, lgd_blkno,
+ &group_bh);
if (ret < 0) {
mlog_errno(ret);
goto out_unlock;
}
-
group = (struct ocfs2_group_desc *)group_bh->b_data;
- ret = ocfs2_check_group_descriptor(inode->i_sb, fe, group);
- if (ret) {
- mlog_errno(ret);
- goto out_unlock;
- }
-
cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc);
if (le16_to_cpu(group->bg_bits) / cl_bpc + new_clusters >
le16_to_cpu(fe->id2.i_chain.cl_cpg)) {
@@ -398,41 +390,16 @@ static int ocfs2_check_new_group(struct inode *inode,
struct buffer_head *group_bh)
{
int ret;
- struct ocfs2_group_desc *gd;
+ struct ocfs2_group_desc *gd =
+ (struct ocfs2_group_desc *)group_bh->b_data;
u16 cl_bpc = le16_to_cpu(di->id2.i_chain.cl_bpc);
- unsigned int max_bits = le16_to_cpu(di->id2.i_chain.cl_cpg) *
- le16_to_cpu(di->id2.i_chain.cl_bpc);
+ ret = ocfs2_check_group_descriptor(inode->i_sb, di, group_bh);
+ if (ret)
+ goto out;
- gd = (struct ocfs2_group_desc *)group_bh->b_data;
-
- ret = -EIO;
- if (!OCFS2_IS_VALID_GROUP_DESC(gd))
- mlog(ML_ERROR, "Group descriptor # %llu isn't valid.\n",
- (unsigned long long)le64_to_cpu(gd->bg_blkno));
- else if (di->i_blkno != gd->bg_parent_dinode)
- mlog(ML_ERROR, "Group descriptor # %llu has bad parent "
- "pointer (%llu, expected %llu)\n",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- (unsigned long long)le64_to_cpu(gd->bg_parent_dinode),
- (unsigned long long)le64_to_cpu(di->i_blkno));
- else if (le16_to_cpu(gd->bg_bits) > max_bits)
- mlog(ML_ERROR, "Group descriptor # %llu has bit count of %u\n",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- le16_to_cpu(gd->bg_bits));
- else if (le16_to_cpu(gd->bg_free_bits_count) > le16_to_cpu(gd->bg_bits))
- mlog(ML_ERROR, "Group descriptor # %llu has bit count %u but "
- "claims that %u are free\n",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- le16_to_cpu(gd->bg_bits),
- le16_to_cpu(gd->bg_free_bits_count));
- else if (le16_to_cpu(gd->bg_bits) > (8 * le16_to_cpu(gd->bg_size)))
- mlog(ML_ERROR, "Group descriptor # %llu has bit count %u but "
- "max bitmap bits of %u\n",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- le16_to_cpu(gd->bg_bits),
- 8 * le16_to_cpu(gd->bg_size));
- else if (le16_to_cpu(gd->bg_chain) != input->chain)
+ ret = -EINVAL;
+ if (le16_to_cpu(gd->bg_chain) != input->chain)
mlog(ML_ERROR, "Group descriptor # %llu has bad chain %u "
"while input has %u set.\n",
(unsigned long long)le64_to_cpu(gd->bg_blkno),
@@ -451,6 +418,7 @@ static int ocfs2_check_new_group(struct inode *inode,
else
ret = 0;
+out:
return ret;
}
@@ -568,8 +536,8 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
cl = &fe->id2.i_chain;
cr = &cl->cl_recs[input->chain];
- ret = ocfs2_journal_access(handle, main_bm_inode, group_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_gd(handle, main_bm_inode, group_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto out_commit;
@@ -584,8 +552,8 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
goto out_commit;
}
- ret = ocfs2_journal_access(handle, main_bm_inode, main_bm_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, main_bm_inode, main_bm_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto out_commit;
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index bdda2d8f8508..40661e7824e9 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -151,7 +151,7 @@ int ocfs2_refresh_slot_info(struct ocfs2_super *osb)
* this is not true, the read of -1 (UINT64_MAX) will fail.
*/
ret = ocfs2_read_blocks(si->si_inode, -1, si->si_blocks, si->si_bh,
- OCFS2_BH_IGNORE_CACHE);
+ OCFS2_BH_IGNORE_CACHE, NULL);
if (ret == 0) {
spin_lock(&osb->osb_lock);
ocfs2_update_slot_info(si);
@@ -405,7 +405,7 @@ static int ocfs2_map_slot_buffers(struct ocfs2_super *osb,
bh = NULL; /* Acquire a fresh bh */
status = ocfs2_read_blocks(si->si_inode, blkno, 1, &bh,
- OCFS2_BH_IGNORE_CACHE);
+ OCFS2_BH_IGNORE_CACHE, NULL);
if (status < 0) {
mlog_errno(status);
goto bail;
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index c5ff18b46b57..a69628603e18 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -35,6 +35,7 @@
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "inode.h"
#include "journal.h"
@@ -145,64 +146,185 @@ static u32 ocfs2_bits_per_group(struct ocfs2_chain_list *cl)
return (u32)le16_to_cpu(cl->cl_cpg) * (u32)le16_to_cpu(cl->cl_bpc);
}
-/* somewhat more expensive than our other checks, so use sparingly. */
-int ocfs2_check_group_descriptor(struct super_block *sb,
- struct ocfs2_dinode *di,
- struct ocfs2_group_desc *gd)
+#define do_error(fmt, ...) \
+ do{ \
+ if (clean_error) \
+ mlog(ML_ERROR, fmt "\n", ##__VA_ARGS__); \
+ else \
+ ocfs2_error(sb, fmt, ##__VA_ARGS__); \
+ } while (0)
+
+static int ocfs2_validate_gd_self(struct super_block *sb,
+ struct buffer_head *bh,
+ int clean_error)
{
- unsigned int max_bits;
+ struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
if (!OCFS2_IS_VALID_GROUP_DESC(gd)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(sb, gd);
- return -EIO;
+ do_error("Group descriptor #%llu has bad signature %.*s",
+ (unsigned long long)bh->b_blocknr, 7,
+ gd->bg_signature);
+ return -EINVAL;
}
+ if (le64_to_cpu(gd->bg_blkno) != bh->b_blocknr) {
+ do_error("Group descriptor #%llu has an invalid bg_blkno "
+ "of %llu",
+ (unsigned long long)bh->b_blocknr,
+ (unsigned long long)le64_to_cpu(gd->bg_blkno));
+ return -EINVAL;
+ }
+
+ if (le32_to_cpu(gd->bg_generation) != OCFS2_SB(sb)->fs_generation) {
+ do_error("Group descriptor #%llu has an invalid "
+ "fs_generation of #%u",
+ (unsigned long long)bh->b_blocknr,
+ le32_to_cpu(gd->bg_generation));
+ return -EINVAL;
+ }
+
+ if (le16_to_cpu(gd->bg_free_bits_count) > le16_to_cpu(gd->bg_bits)) {
+ do_error("Group descriptor #%llu has bit count %u but "
+ "claims that %u are free",
+ (unsigned long long)bh->b_blocknr,
+ le16_to_cpu(gd->bg_bits),
+ le16_to_cpu(gd->bg_free_bits_count));
+ return -EINVAL;
+ }
+
+ if (le16_to_cpu(gd->bg_bits) > (8 * le16_to_cpu(gd->bg_size))) {
+ do_error("Group descriptor #%llu has bit count %u but "
+ "max bitmap bits of %u",
+ (unsigned long long)bh->b_blocknr,
+ le16_to_cpu(gd->bg_bits),
+ 8 * le16_to_cpu(gd->bg_size));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ocfs2_validate_gd_parent(struct super_block *sb,
+ struct ocfs2_dinode *di,
+ struct buffer_head *bh,
+ int clean_error)
+{
+ unsigned int max_bits;
+ struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
+
if (di->i_blkno != gd->bg_parent_dinode) {
- ocfs2_error(sb, "Group descriptor # %llu has bad parent "
- "pointer (%llu, expected %llu)",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- (unsigned long long)le64_to_cpu(gd->bg_parent_dinode),
- (unsigned long long)le64_to_cpu(di->i_blkno));
- return -EIO;
+ do_error("Group descriptor #%llu has bad parent "
+ "pointer (%llu, expected %llu)",
+ (unsigned long long)bh->b_blocknr,
+ (unsigned long long)le64_to_cpu(gd->bg_parent_dinode),
+ (unsigned long long)le64_to_cpu(di->i_blkno));
+ return -EINVAL;
}
max_bits = le16_to_cpu(di->id2.i_chain.cl_cpg) * le16_to_cpu(di->id2.i_chain.cl_bpc);
if (le16_to_cpu(gd->bg_bits) > max_bits) {
- ocfs2_error(sb, "Group descriptor # %llu has bit count of %u",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- le16_to_cpu(gd->bg_bits));
- return -EIO;
+ do_error("Group descriptor #%llu has bit count of %u",
+ (unsigned long long)bh->b_blocknr,
+ le16_to_cpu(gd->bg_bits));
+ return -EINVAL;
}
if (le16_to_cpu(gd->bg_chain) >=
le16_to_cpu(di->id2.i_chain.cl_next_free_rec)) {
- ocfs2_error(sb, "Group descriptor # %llu has bad chain %u",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- le16_to_cpu(gd->bg_chain));
- return -EIO;
- }
-
- if (le16_to_cpu(gd->bg_free_bits_count) > le16_to_cpu(gd->bg_bits)) {
- ocfs2_error(sb, "Group descriptor # %llu has bit count %u but "
- "claims that %u are free",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- le16_to_cpu(gd->bg_bits),
- le16_to_cpu(gd->bg_free_bits_count));
- return -EIO;
- }
-
- if (le16_to_cpu(gd->bg_bits) > (8 * le16_to_cpu(gd->bg_size))) {
- ocfs2_error(sb, "Group descriptor # %llu has bit count %u but "
- "max bitmap bits of %u",
- (unsigned long long)le64_to_cpu(gd->bg_blkno),
- le16_to_cpu(gd->bg_bits),
- 8 * le16_to_cpu(gd->bg_size));
- return -EIO;
+ do_error("Group descriptor #%llu has bad chain %u",
+ (unsigned long long)bh->b_blocknr,
+ le16_to_cpu(gd->bg_chain));
+ return -EINVAL;
}
return 0;
}
+#undef do_error
+
+/*
+ * This version only prints errors. It does not fail the filesystem, and
+ * exists only for resize.
+ */
+int ocfs2_check_group_descriptor(struct super_block *sb,
+ struct ocfs2_dinode *di,
+ struct buffer_head *bh)
+{
+ int rc;
+ struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
+
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &gd->bg_check);
+ if (rc) {
+ mlog(ML_ERROR,
+ "Checksum failed for group descriptor %llu\n",
+ (unsigned long long)bh->b_blocknr);
+ } else
+ rc = ocfs2_validate_gd_self(sb, bh, 1);
+ if (!rc)
+ rc = ocfs2_validate_gd_parent(sb, di, bh, 1);
+
+ return rc;
+}
+
+static int ocfs2_validate_group_descriptor(struct super_block *sb,
+ struct buffer_head *bh)
+{
+ int rc;
+ struct ocfs2_group_desc *gd = (struct ocfs2_group_desc *)bh->b_data;
+
+ mlog(0, "Validating group descriptor %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &gd->bg_check);
+ if (rc)
+ return rc;
+
+ /*
+ * Errors after here are fatal.
+ */
+
+ return ocfs2_validate_gd_self(sb, bh, 0);
+}
+
+int ocfs2_read_group_descriptor(struct inode *inode, struct ocfs2_dinode *di,
+ u64 gd_blkno, struct buffer_head **bh)
+{
+ int rc;
+ struct buffer_head *tmp = *bh;
+
+ rc = ocfs2_read_block(inode, gd_blkno, &tmp,
+ ocfs2_validate_group_descriptor);
+ if (rc)
+ goto out;
+
+ rc = ocfs2_validate_gd_parent(inode->i_sb, di, tmp, 0);
+ if (rc) {
+ brelse(tmp);
+ goto out;
+ }
+
+ /* If ocfs2_read_block() got us a new bh, pass it up. */
+ if (!*bh)
+ *bh = tmp;
+
+out:
+ return rc;
+}
+
static int ocfs2_block_group_fill(handle_t *handle,
struct inode *alloc_inode,
struct buffer_head *bg_bh,
@@ -225,10 +347,10 @@ static int ocfs2_block_group_fill(handle_t *handle,
goto bail;
}
- status = ocfs2_journal_access(handle,
- alloc_inode,
- bg_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ status = ocfs2_journal_access_gd(handle,
+ alloc_inode,
+ bg_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -358,8 +480,8 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
bg = (struct ocfs2_group_desc *) bg_bh->b_data;
- status = ocfs2_journal_access(handle, alloc_inode,
- bh, OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, alloc_inode,
+ bh, OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -441,11 +563,11 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
ac->ac_alloc_slot = slot;
fe = (struct ocfs2_dinode *) bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(alloc_inode->i_sb, fe);
- status = -EIO;
- goto bail;
- }
+
+ /* The bh was validated by the inode read inside
+ * ocfs2_inode_lock(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
+
if (!(fe->i_flags & cpu_to_le32(OCFS2_CHAIN_FL))) {
ocfs2_error(alloc_inode->i_sb, "Invalid chain allocator %llu",
(unsigned long long)le64_to_cpu(fe->i_blkno));
@@ -790,10 +912,9 @@ static int ocfs2_block_group_find_clear_bits(struct ocfs2_super *osb,
int offset, start, found, status = 0;
struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(osb->sb, bg);
- return -EIO;
- }
+ /* Callers got this descriptor from
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
found = start = best_offset = best_size = 0;
bitmap = bg->bg_bitmap;
@@ -858,11 +979,9 @@ static inline int ocfs2_block_group_set_bits(handle_t *handle,
mlog_entry_void();
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg);
- status = -EIO;
- goto bail;
- }
+ /* All callers get the descriptor via
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
BUG_ON(le16_to_cpu(bg->bg_free_bits_count) < num_bits);
mlog(0, "block_group_set_bits: off = %u, num = %u\n", bit_off,
@@ -871,10 +990,10 @@ static inline int ocfs2_block_group_set_bits(handle_t *handle,
if (ocfs2_is_cluster_bitmap(alloc_inode))
journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
- status = ocfs2_journal_access(handle,
- alloc_inode,
- group_bh,
- journal_type);
+ status = ocfs2_journal_access_gd(handle,
+ alloc_inode,
+ group_bh,
+ journal_type);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -931,21 +1050,10 @@ static int ocfs2_relink_block_group(handle_t *handle,
struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;
struct ocfs2_group_desc *prev_bg = (struct ocfs2_group_desc *) prev_bg_bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(alloc_inode->i_sb, fe);
- status = -EIO;
- goto out;
- }
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg);
- status = -EIO;
- goto out;
- }
- if (!OCFS2_IS_VALID_GROUP_DESC(prev_bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, prev_bg);
- status = -EIO;
- goto out;
- }
+ /* The caller got these descriptors from
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(prev_bg));
mlog(0, "Suballoc %llu, chain %u, move group %llu to top, prev = %llu\n",
(unsigned long long)le64_to_cpu(fe->i_blkno), chain,
@@ -956,8 +1064,8 @@ static int ocfs2_relink_block_group(handle_t *handle,
bg_ptr = le64_to_cpu(bg->bg_next_group);
prev_bg_ptr = le64_to_cpu(prev_bg->bg_next_group);
- status = ocfs2_journal_access(handle, alloc_inode, prev_bg_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_gd(handle, alloc_inode, prev_bg_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto out_rollback;
@@ -971,8 +1079,8 @@ static int ocfs2_relink_block_group(handle_t *handle,
goto out_rollback;
}
- status = ocfs2_journal_access(handle, alloc_inode, bg_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_gd(handle, alloc_inode, bg_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto out_rollback;
@@ -986,8 +1094,8 @@ static int ocfs2_relink_block_group(handle_t *handle,
goto out_rollback;
}
- status = ocfs2_journal_access(handle, alloc_inode, fe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, alloc_inode, fe_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto out_rollback;
@@ -1008,7 +1116,7 @@ out_rollback:
bg->bg_next_group = cpu_to_le64(bg_ptr);
prev_bg->bg_next_group = cpu_to_le64(prev_bg_ptr);
}
-out:
+
mlog_exit(status);
return status;
}
@@ -1138,8 +1246,8 @@ static int ocfs2_alloc_dinode_update_counts(struct inode *inode,
struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data;
struct ocfs2_chain_list *cl = (struct ocfs2_chain_list *) &di->id2.i_chain;
- ret = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto out;
@@ -1170,21 +1278,17 @@ static int ocfs2_search_one_group(struct ocfs2_alloc_context *ac,
u16 found;
struct buffer_head *group_bh = NULL;
struct ocfs2_group_desc *gd;
+ struct ocfs2_dinode *di = (struct ocfs2_dinode *)ac->ac_bh->b_data;
struct inode *alloc_inode = ac->ac_inode;
- ret = ocfs2_read_block(alloc_inode, gd_blkno, &group_bh);
+ ret = ocfs2_read_group_descriptor(alloc_inode, di, gd_blkno,
+ &group_bh);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
gd = (struct ocfs2_group_desc *) group_bh->b_data;
- if (!OCFS2_IS_VALID_GROUP_DESC(gd)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, gd);
- ret = -EIO;
- goto out;
- }
-
ret = ac->ac_group_search(alloc_inode, group_bh, bits_wanted, min_bits,
ac->ac_max_block, bit_off, &found);
if (ret < 0) {
@@ -1241,19 +1345,14 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
bits_wanted, chain,
(unsigned long long)OCFS2_I(alloc_inode)->ip_blkno);
- status = ocfs2_read_block(alloc_inode,
- le64_to_cpu(cl->cl_recs[chain].c_blkno),
- &group_bh);
+ status = ocfs2_read_group_descriptor(alloc_inode, fe,
+ le64_to_cpu(cl->cl_recs[chain].c_blkno),
+ &group_bh);
if (status < 0) {
mlog_errno(status);
goto bail;
}
bg = (struct ocfs2_group_desc *) group_bh->b_data;
- status = ocfs2_check_group_descriptor(alloc_inode->i_sb, fe, bg);
- if (status) {
- mlog_errno(status);
- goto bail;
- }
status = -ENOSPC;
/* for now, the chain search is a bit simplistic. We just use
@@ -1271,18 +1370,13 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
next_group = le64_to_cpu(bg->bg_next_group);
prev_group_bh = group_bh;
group_bh = NULL;
- status = ocfs2_read_block(alloc_inode,
- next_group, &group_bh);
+ status = ocfs2_read_group_descriptor(alloc_inode, fe,
+ next_group, &group_bh);
if (status < 0) {
mlog_errno(status);
goto bail;
}
bg = (struct ocfs2_group_desc *) group_bh->b_data;
- status = ocfs2_check_group_descriptor(alloc_inode->i_sb, fe, bg);
- if (status) {
- mlog_errno(status);
- goto bail;
- }
}
if (status < 0) {
if (status != -ENOSPC)
@@ -1324,10 +1418,10 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
/* Ok, claim our bits now: set the info on dinode, chainlist
* and then the group */
- status = ocfs2_journal_access(handle,
- alloc_inode,
- ac->ac_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle,
+ alloc_inode,
+ ac->ac_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1392,11 +1486,11 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_super *osb,
BUG_ON(!ac->ac_bh);
fe = (struct ocfs2_dinode *) ac->ac_bh->b_data;
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(osb->sb, fe);
- status = -EIO;
- goto bail;
- }
+
+ /* The bh was validated by the inode read during
+ * ocfs2_reserve_suballoc_bits(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
+
if (le32_to_cpu(fe->id1.bitmap1.i_used) >=
le32_to_cpu(fe->id1.bitmap1.i_total)) {
ocfs2_error(osb->sb, "Chain allocator dinode %llu has %u used "
@@ -1725,19 +1819,17 @@ static inline int ocfs2_block_group_clear_bits(handle_t *handle,
mlog_entry_void();
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg);
- status = -EIO;
- goto bail;
- }
+ /* The caller got this descriptor from
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
mlog(0, "off = %u, num = %u\n", bit_off, num_bits);
if (ocfs2_is_cluster_bitmap(alloc_inode))
journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
- status = ocfs2_journal_access(handle, alloc_inode, group_bh,
- journal_type);
+ status = ocfs2_journal_access_gd(handle, alloc_inode, group_bh,
+ journal_type);
if (status < 0) {
mlog_errno(status);
goto bail;
@@ -1782,29 +1874,26 @@ int ocfs2_free_suballoc_bits(handle_t *handle,
mlog_entry_void();
- if (!OCFS2_IS_VALID_DINODE(fe)) {
- OCFS2_RO_ON_INVALID_DINODE(alloc_inode->i_sb, fe);
- status = -EIO;
- goto bail;
- }
+ /* The alloc_bh comes from ocfs2_free_dinode() or
+ * ocfs2_free_clusters(). The callers have all locked the
+ * allocator and gotten alloc_bh from the lock call. This
+ * validates the dinode buffer. Any corruption that has happended
+ * is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
BUG_ON((count + start_bit) > ocfs2_bits_per_group(cl));
mlog(0, "%llu: freeing %u bits from group %llu, starting at %u\n",
(unsigned long long)OCFS2_I(alloc_inode)->ip_blkno, count,
(unsigned long long)bg_blkno, start_bit);
- status = ocfs2_read_block(alloc_inode, bg_blkno, &group_bh);
+ status = ocfs2_read_group_descriptor(alloc_inode, fe, bg_blkno,
+ &group_bh);
if (status < 0) {
mlog_errno(status);
goto bail;
}
-
group = (struct ocfs2_group_desc *) group_bh->b_data;
- status = ocfs2_check_group_descriptor(alloc_inode->i_sb, fe, group);
- if (status) {
- mlog_errno(status);
- goto bail;
- }
+
BUG_ON((count + start_bit) > le16_to_cpu(group->bg_bits));
status = ocfs2_block_group_clear_bits(handle, alloc_inode,
@@ -1815,8 +1904,8 @@ int ocfs2_free_suballoc_bits(handle_t *handle,
goto bail;
}
- status = ocfs2_journal_access(handle, alloc_inode, alloc_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = ocfs2_journal_access_di(handle, alloc_inode, alloc_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto bail;
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index 4df159d8f450..e3c13c77f9e8 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -164,10 +164,24 @@ void ocfs2_free_ac_resource(struct ocfs2_alloc_context *ac);
* and return that block offset. */
u64 ocfs2_which_cluster_group(struct inode *inode, u32 cluster);
-/* somewhat more expensive than our other checks, so use sparingly. */
+/*
+ * By default, ocfs2_read_group_descriptor() calls ocfs2_error() when it
+ * finds a problem. A caller that wants to check a group descriptor
+ * without going readonly should read the block with ocfs2_read_block[s]()
+ * and then checking it with this function. This is only resize, really.
+ * Everyone else should be using ocfs2_read_group_descriptor().
+ */
int ocfs2_check_group_descriptor(struct super_block *sb,
struct ocfs2_dinode *di,
- struct ocfs2_group_desc *gd);
+ struct buffer_head *bh);
+/*
+ * Read a group descriptor block into *bh. If *bh is NULL, a bh will be
+ * allocated. This is a cached read. The descriptor will be validated with
+ * ocfs2_validate_group_descriptor().
+ */
+int ocfs2_read_group_descriptor(struct inode *inode, struct ocfs2_dinode *di,
+ u64 gd_blkno, struct buffer_head **bh);
+
int ocfs2_lock_allocators(struct inode *inode, struct ocfs2_extent_tree *et,
u32 clusters_to_add, u32 extents_to_split,
struct ocfs2_alloc_context **data_ac,
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 304b63ac78cf..43ed11345b59 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -41,6 +41,7 @@
#include <linux/debugfs.h>
#include <linux/mount.h>
#include <linux/seq_file.h>
+#include <linux/quotaops.h>
#define MLOG_MASK_PREFIX ML_SUPER
#include <cluster/masklog.h>
@@ -51,6 +52,7 @@
#include "ocfs1_fs_compat.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "export.h"
#include "extent_map.h"
@@ -65,10 +67,13 @@
#include "uptodate.h"
#include "ver.h"
#include "xattr.h"
+#include "quota.h"
#include "buffer_head_io.h"
static struct kmem_cache *ocfs2_inode_cachep = NULL;
+struct kmem_cache *ocfs2_dquot_cachep;
+struct kmem_cache *ocfs2_qf_chunk_cachep;
/* OCFS2 needs to schedule several differnt types of work which
* require cluster locking, disk I/O, recovery waits, etc. Since these
@@ -124,6 +129,9 @@ static int ocfs2_get_sector(struct super_block *sb,
static void ocfs2_write_super(struct super_block *sb);
static struct inode *ocfs2_alloc_inode(struct super_block *sb);
static void ocfs2_destroy_inode(struct inode *inode);
+static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend);
+static int ocfs2_enable_quotas(struct ocfs2_super *osb);
+static void ocfs2_disable_quotas(struct ocfs2_super *osb);
static const struct super_operations ocfs2_sops = {
.statfs = ocfs2_statfs,
@@ -137,6 +145,8 @@ static const struct super_operations ocfs2_sops = {
.put_super = ocfs2_put_super,
.remount_fs = ocfs2_remount,
.show_options = ocfs2_show_options,
+ .quota_read = ocfs2_quota_read,
+ .quota_write = ocfs2_quota_write,
};
enum {
@@ -158,6 +168,10 @@ enum {
Opt_user_xattr,
Opt_nouser_xattr,
Opt_inode64,
+ Opt_acl,
+ Opt_noacl,
+ Opt_usrquota,
+ Opt_grpquota,
Opt_err,
};
@@ -180,6 +194,10 @@ static const match_table_t tokens = {
{Opt_user_xattr, "user_xattr"},
{Opt_nouser_xattr, "nouser_xattr"},
{Opt_inode64, "inode64"},
+ {Opt_acl, "acl"},
+ {Opt_noacl, "noacl"},
+ {Opt_usrquota, "usrquota"},
+ {Opt_grpquota, "grpquota"},
{Opt_err, NULL}
};
@@ -221,6 +239,19 @@ static int ocfs2_sync_fs(struct super_block *sb, int wait)
return 0;
}
+static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino)
+{
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)
+ && (ino == USER_QUOTA_SYSTEM_INODE
+ || ino == LOCAL_USER_QUOTA_SYSTEM_INODE))
+ return 0;
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)
+ && (ino == GROUP_QUOTA_SYSTEM_INODE
+ || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE))
+ return 0;
+ return 1;
+}
+
static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb)
{
struct inode *new = NULL;
@@ -247,6 +278,8 @@ static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb)
for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE;
i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) {
+ if (!ocfs2_need_system_inode(osb, i))
+ continue;
new = ocfs2_get_system_file_inode(osb, i, osb->slot_num);
if (!new) {
ocfs2_release_system_inodes(osb);
@@ -277,6 +310,8 @@ static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb)
for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1;
i < NUM_SYSTEM_INODES;
i++) {
+ if (!ocfs2_need_system_inode(osb, i))
+ continue;
new = ocfs2_get_system_file_inode(osb, i, osb->slot_num);
if (!new) {
ocfs2_release_system_inodes(osb);
@@ -426,6 +461,12 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
/* We're going to/from readonly mode. */
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
+ /* Disable quota accounting before remounting RO */
+ if (*flags & MS_RDONLY) {
+ ret = ocfs2_susp_quotas(osb, 0);
+ if (ret < 0)
+ goto out;
+ }
/* Lock here so the check of HARD_RO and the potential
* setting of SOFT_RO is atomic. */
spin_lock(&osb->osb_lock);
@@ -461,11 +502,28 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
}
unlock_osb:
spin_unlock(&osb->osb_lock);
+ /* Enable quota accounting after remounting RW */
+ if (!ret && !(*flags & MS_RDONLY)) {
+ if (sb_any_quota_suspended(sb))
+ ret = ocfs2_susp_quotas(osb, 1);
+ else
+ ret = ocfs2_enable_quotas(osb);
+ if (ret < 0) {
+ /* Return back changes... */
+ spin_lock(&osb->osb_lock);
+ sb->s_flags |= MS_RDONLY;
+ osb->osb_flags |= OCFS2_OSB_SOFT_RO;
+ spin_unlock(&osb->osb_lock);
+ goto out;
+ }
+ }
}
if (!ret) {
/* Only save off the new mount options in case of a successful
* remount. */
+ if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR))
+ parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL;
osb->s_mount_opt = parsed_options.mount_opt;
osb->s_atime_quantum = parsed_options.atime_quantum;
osb->preferred_slot = parsed_options.slot;
@@ -619,6 +677,131 @@ static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb,
return 0;
}
+static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend)
+{
+ int type;
+ struct super_block *sb = osb->sb;
+ unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA};
+ int status = 0;
+
+ for (type = 0; type < MAXQUOTAS; type++) {
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type]))
+ continue;
+ if (unsuspend)
+ status = vfs_quota_enable(
+ sb_dqopt(sb)->files[type],
+ type, QFMT_OCFS2,
+ DQUOT_SUSPENDED);
+ else
+ status = vfs_quota_disable(sb, type,
+ DQUOT_SUSPENDED);
+ if (status < 0)
+ break;
+ }
+ if (status < 0)
+ mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on "
+ "remount (error = %d).\n", status);
+ return status;
+}
+
+static int ocfs2_enable_quotas(struct ocfs2_super *osb)
+{
+ struct inode *inode[MAXQUOTAS] = { NULL, NULL };
+ struct super_block *sb = osb->sb;
+ unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA};
+ unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE,
+ LOCAL_GROUP_QUOTA_SYSTEM_INODE };
+ int status;
+ int type;
+
+ sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE;
+ for (type = 0; type < MAXQUOTAS; type++) {
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type]))
+ continue;
+ inode[type] = ocfs2_get_system_file_inode(osb, ino[type],
+ osb->slot_num);
+ if (!inode[type]) {
+ status = -ENOENT;
+ goto out_quota_off;
+ }
+ status = vfs_quota_enable(inode[type], type, QFMT_OCFS2,
+ DQUOT_USAGE_ENABLED);
+ if (status < 0)
+ goto out_quota_off;
+ }
+
+ for (type = 0; type < MAXQUOTAS; type++)
+ iput(inode[type]);
+ return 0;
+out_quota_off:
+ ocfs2_disable_quotas(osb);
+ for (type = 0; type < MAXQUOTAS; type++)
+ iput(inode[type]);
+ mlog_errno(status);
+ return status;
+}
+
+static void ocfs2_disable_quotas(struct ocfs2_super *osb)
+{
+ int type;
+ struct inode *inode;
+ struct super_block *sb = osb->sb;
+
+ /* We mostly ignore errors in this function because there's not much
+ * we can do when we see them */
+ for (type = 0; type < MAXQUOTAS; type++) {
+ if (!sb_has_quota_loaded(sb, type))
+ continue;
+ inode = igrab(sb->s_dquot.files[type]);
+ /* Turn off quotas. This will remove all dquot structures from
+ * memory and so they will be automatically synced to global
+ * quota files */
+ vfs_quota_disable(sb, type, DQUOT_USAGE_ENABLED |
+ DQUOT_LIMITS_ENABLED);
+ if (!inode)
+ continue;
+ iput(inode);
+ }
+}
+
+/* Handle quota on quotactl */
+static int ocfs2_quota_on(struct super_block *sb, int type, int format_id,
+ char *path, int remount)
+{
+ unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA};
+
+ if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type]))
+ return -EINVAL;
+
+ if (remount)
+ return 0; /* Just ignore it has been handled in
+ * ocfs2_remount() */
+ return vfs_quota_enable(sb_dqopt(sb)->files[type], type,
+ format_id, DQUOT_LIMITS_ENABLED);
+}
+
+/* Handle quota off quotactl */
+static int ocfs2_quota_off(struct super_block *sb, int type, int remount)
+{
+ if (remount)
+ return 0; /* Ignore now and handle later in
+ * ocfs2_remount() */
+ return vfs_quota_disable(sb, type, DQUOT_LIMITS_ENABLED);
+}
+
+static struct quotactl_ops ocfs2_quotactl_ops = {
+ .quota_on = ocfs2_quota_on,
+ .quota_off = ocfs2_quota_off,
+ .quota_sync = vfs_quota_sync,
+ .get_info = vfs_get_dqinfo,
+ .set_info = vfs_set_dqinfo,
+ .get_dqblk = vfs_get_dqblk,
+ .set_dqblk = vfs_set_dqblk,
+};
+
static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
{
struct dentry *root;
@@ -651,12 +834,32 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
}
brelse(bh);
bh = NULL;
+
+ if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR))
+ parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL;
+
osb->s_mount_opt = parsed_options.mount_opt;
osb->s_atime_quantum = parsed_options.atime_quantum;
osb->preferred_slot = parsed_options.slot;
osb->osb_commit_interval = parsed_options.commit_interval;
osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt);
osb->local_alloc_bits = osb->local_alloc_default_bits;
+ if (osb->s_mount_opt & OCFS2_MOUNT_USRQUOTA &&
+ !OCFS2_HAS_RO_COMPAT_FEATURE(sb,
+ OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
+ status = -EINVAL;
+ mlog(ML_ERROR, "User quotas were requested, but this "
+ "filesystem does not have the feature enabled.\n");
+ goto read_super_error;
+ }
+ if (osb->s_mount_opt & OCFS2_MOUNT_GRPQUOTA &&
+ !OCFS2_HAS_RO_COMPAT_FEATURE(sb,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) {
+ status = -EINVAL;
+ mlog(ML_ERROR, "Group quotas were requested, but this "
+ "filesystem does not have the feature enabled.\n");
+ goto read_super_error;
+ }
status = ocfs2_verify_userspace_stack(osb, &parsed_options);
if (status)
@@ -664,6 +867,9 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
sb->s_magic = OCFS2_SUPER_MAGIC;
+ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+
/* Hard readonly mode only if: bdev_read_only, MS_RDONLY,
* heartbeat=none */
if (bdev_read_only(sb->s_bdev)) {
@@ -758,6 +964,28 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
atomic_set(&osb->vol_state, VOLUME_MOUNTED);
wake_up(&osb->osb_mount_event);
+ /* Now we can initialize quotas because we can afford to wait
+ * for cluster locks recovery now. That also means that truncation
+ * log recovery can happen but that waits for proper quota setup */
+ if (!(sb->s_flags & MS_RDONLY)) {
+ status = ocfs2_enable_quotas(osb);
+ if (status < 0) {
+ /* We have to err-out specially here because
+ * s_root is already set */
+ mlog_errno(status);
+ atomic_set(&osb->vol_state, VOLUME_DISABLED);
+ wake_up(&osb->osb_mount_event);
+ mlog_exit(status);
+ return status;
+ }
+ }
+
+ ocfs2_complete_quota_recovery(osb);
+
+ /* Now we wake up again for processes waiting for quotas */
+ atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS);
+ wake_up(&osb->osb_mount_event);
+
mlog_exit(status);
return status;
@@ -945,6 +1173,41 @@ static int ocfs2_parse_options(struct super_block *sb,
case Opt_inode64:
mopt->mount_opt |= OCFS2_MOUNT_INODE64;
break;
+ case Opt_usrquota:
+ /* We check only on remount, otherwise features
+ * aren't yet initialized. */
+ if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb,
+ OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) {
+ mlog(ML_ERROR, "User quota requested but "
+ "filesystem feature is not set\n");
+ status = 0;
+ goto bail;
+ }
+ mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA;
+ break;
+ case Opt_grpquota:
+ if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb,
+ OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) {
+ mlog(ML_ERROR, "Group quota requested but "
+ "filesystem feature is not set\n");
+ status = 0;
+ goto bail;
+ }
+ mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA;
+ break;
+#ifdef CONFIG_OCFS2_FS_POSIX_ACL
+ case Opt_acl:
+ mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL;
+ break;
+ case Opt_noacl:
+ mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL;
+ break;
+#else
+ case Opt_acl:
+ case Opt_noacl:
+ printk(KERN_INFO "ocfs2 (no)acl options not supported\n");
+ break;
+#endif
default:
mlog(ML_ERROR,
"Unrecognized mount option \"%s\" "
@@ -1008,6 +1271,10 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
if (osb->osb_cluster_stack[0])
seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN,
osb->osb_cluster_stack);
+ if (opts & OCFS2_MOUNT_USRQUOTA)
+ seq_printf(s, ",usrquota");
+ if (opts & OCFS2_MOUNT_GRPQUOTA)
+ seq_printf(s, ",grpquota");
if (opts & OCFS2_MOUNT_NOUSERXATTR)
seq_printf(s, ",nouser_xattr");
@@ -1017,6 +1284,13 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
if (opts & OCFS2_MOUNT_INODE64)
seq_printf(s, ",inode64");
+#ifdef CONFIG_OCFS2_FS_POSIX_ACL
+ if (opts & OCFS2_MOUNT_POSIX_ACL)
+ seq_printf(s, ",acl");
+ else
+ seq_printf(s, ",noacl");
+#endif
+
return 0;
}
@@ -1052,10 +1326,16 @@ static int __init ocfs2_init(void)
mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n");
}
+ status = ocfs2_quota_setup();
+ if (status)
+ goto leave;
+
ocfs2_set_locking_protocol();
+ status = register_quota_format(&ocfs2_quota_format);
leave:
if (status < 0) {
+ ocfs2_quota_shutdown();
ocfs2_free_mem_caches();
exit_ocfs2_uptodate_cache();
}
@@ -1072,11 +1352,15 @@ static void __exit ocfs2_exit(void)
{
mlog_entry_void();
+ ocfs2_quota_shutdown();
+
if (ocfs2_wq) {
flush_workqueue(ocfs2_wq);
destroy_workqueue(ocfs2_wq);
}
+ unregister_quota_format(&ocfs2_quota_format);
+
debugfs_remove(ocfs2_debugfs_root);
ocfs2_free_mem_caches();
@@ -1192,8 +1476,27 @@ static int ocfs2_initialize_mem_caches(void)
(SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD),
ocfs2_inode_init_once);
- if (!ocfs2_inode_cachep)
+ ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache",
+ sizeof(struct ocfs2_dquot),
+ 0,
+ (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
+ NULL);
+ ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache",
+ sizeof(struct ocfs2_quota_chunk),
+ 0,
+ (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD),
+ NULL);
+ if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep ||
+ !ocfs2_qf_chunk_cachep) {
+ if (ocfs2_inode_cachep)
+ kmem_cache_destroy(ocfs2_inode_cachep);
+ if (ocfs2_dquot_cachep)
+ kmem_cache_destroy(ocfs2_dquot_cachep);
+ if (ocfs2_qf_chunk_cachep)
+ kmem_cache_destroy(ocfs2_qf_chunk_cachep);
return -ENOMEM;
+ }
return 0;
}
@@ -1202,8 +1505,15 @@ static void ocfs2_free_mem_caches(void)
{
if (ocfs2_inode_cachep)
kmem_cache_destroy(ocfs2_inode_cachep);
-
ocfs2_inode_cachep = NULL;
+
+ if (ocfs2_dquot_cachep)
+ kmem_cache_destroy(ocfs2_dquot_cachep);
+ ocfs2_dquot_cachep = NULL;
+
+ if (ocfs2_qf_chunk_cachep)
+ kmem_cache_destroy(ocfs2_qf_chunk_cachep);
+ ocfs2_qf_chunk_cachep = NULL;
}
static int ocfs2_get_sector(struct super_block *sb,
@@ -1303,6 +1613,8 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
osb = OCFS2_SB(sb);
BUG_ON(!osb);
+ ocfs2_disable_quotas(osb);
+
ocfs2_shutdown_local_alloc(osb);
ocfs2_truncate_log_shutdown(osb);
@@ -1413,6 +1725,8 @@ static int ocfs2_initialize_super(struct super_block *sb,
sb->s_fs_info = osb;
sb->s_op = &ocfs2_sops;
sb->s_export_op = &ocfs2_export_ops;
+ sb->s_qcop = &ocfs2_quotactl_ops;
+ sb->dq_op = &ocfs2_quota_operations;
sb->s_xattr = ocfs2_xattr_handlers;
sb->s_time_gran = 1;
sb->s_flags |= MS_NOATIME;
@@ -1676,6 +1990,15 @@ static int ocfs2_verify_volume(struct ocfs2_dinode *di,
if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE,
strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) {
+ /* We have to do a raw check of the feature here */
+ if (le32_to_cpu(di->id2.i_super.s_feature_incompat) &
+ OCFS2_FEATURE_INCOMPAT_META_ECC) {
+ status = ocfs2_block_check_validate(bh->b_data,
+ bh->b_size,
+ &di->i_check);
+ if (status)
+ goto out;
+ }
status = -EINVAL;
if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) {
mlog(ML_ERROR, "found superblock with incorrect block "
@@ -1717,6 +2040,7 @@ static int ocfs2_verify_volume(struct ocfs2_dinode *di,
}
}
+out:
mlog_exit(status);
return status;
}
diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c
index cbd03dfdc7b9..ed0a0cfd68d2 100644
--- a/fs/ocfs2/symlink.c
+++ b/fs/ocfs2/symlink.c
@@ -84,7 +84,7 @@ static char *ocfs2_fast_symlink_getlink(struct inode *inode,
mlog_entry_void();
- status = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, bh);
+ status = ocfs2_read_inode_block(inode, bh);
if (status < 0) {
mlog_errno(status);
link = ERR_PTR(status);
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 74d7367ade13..e1d638af6ac3 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -35,12 +35,14 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
+#include <linux/security.h>
#define MLOG_MASK_PREFIX ML_XATTR
#include <cluster/masklog.h>
#include "ocfs2.h"
#include "alloc.h"
+#include "blockcheck.h"
#include "dlmglue.h"
#include "file.h"
#include "symlink.h"
@@ -61,12 +63,32 @@ struct ocfs2_xattr_def_value_root {
};
struct ocfs2_xattr_bucket {
- struct buffer_head *bhs[OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET];
- struct ocfs2_xattr_header *xh;
+ /* The inode these xattrs are associated with */
+ struct inode *bu_inode;
+
+ /* The actual buffers that make up the bucket */
+ struct buffer_head *bu_bhs[OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET];
+
+ /* How many blocks make up one bucket for this filesystem */
+ int bu_blocks;
+};
+
+struct ocfs2_xattr_set_ctxt {
+ handle_t *handle;
+ struct ocfs2_alloc_context *meta_ac;
+ struct ocfs2_alloc_context *data_ac;
+ struct ocfs2_cached_dealloc_ctxt dealloc;
};
#define OCFS2_XATTR_ROOT_SIZE (sizeof(struct ocfs2_xattr_def_value_root))
#define OCFS2_XATTR_INLINE_SIZE 80
+#define OCFS2_XATTR_FREE_IN_IBODY (OCFS2_MIN_XATTR_INLINE_SIZE \
+ - sizeof(struct ocfs2_xattr_header) \
+ - sizeof(__u32))
+#define OCFS2_XATTR_FREE_IN_BLOCK(ptr) ((ptr)->i_sb->s_blocksize \
+ - sizeof(struct ocfs2_xattr_block) \
+ - sizeof(struct ocfs2_xattr_header) \
+ - sizeof(__u32))
static struct ocfs2_xattr_def_value_root def_xv = {
.xv.xr_list.l_count = cpu_to_le16(1),
@@ -74,13 +96,25 @@ static struct ocfs2_xattr_def_value_root def_xv = {
struct xattr_handler *ocfs2_xattr_handlers[] = {
&ocfs2_xattr_user_handler,
+#ifdef CONFIG_OCFS2_FS_POSIX_ACL
+ &ocfs2_xattr_acl_access_handler,
+ &ocfs2_xattr_acl_default_handler,
+#endif
&ocfs2_xattr_trusted_handler,
+ &ocfs2_xattr_security_handler,
NULL
};
static struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
[OCFS2_XATTR_INDEX_USER] = &ocfs2_xattr_user_handler,
+#ifdef CONFIG_OCFS2_FS_POSIX_ACL
+ [OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS]
+ = &ocfs2_xattr_acl_access_handler,
+ [OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT]
+ = &ocfs2_xattr_acl_default_handler,
+#endif
[OCFS2_XATTR_INDEX_TRUSTED] = &ocfs2_xattr_trusted_handler,
+ [OCFS2_XATTR_INDEX_SECURITY] = &ocfs2_xattr_security_handler,
};
struct ocfs2_xattr_info {
@@ -98,7 +132,7 @@ struct ocfs2_xattr_search {
*/
struct buffer_head *xattr_bh;
struct ocfs2_xattr_header *header;
- struct ocfs2_xattr_bucket bucket;
+ struct ocfs2_xattr_bucket *bucket;
void *base;
void *end;
struct ocfs2_xattr_entry *here;
@@ -127,14 +161,20 @@ static int ocfs2_xattr_tree_list_index_block(struct inode *inode,
size_t buffer_size);
static int ocfs2_xattr_create_index_block(struct inode *inode,
- struct ocfs2_xattr_search *xs);
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt);
static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs);
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt);
static int ocfs2_delete_xattr_index_block(struct inode *inode,
struct buffer_head *xb_bh);
+static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle,
+ u64 src_blk, u64 last_blk, u64 to_blk,
+ unsigned int start_bucket,
+ u32 *first_hash);
static inline u16 ocfs2_xattr_buckets_per_cluster(struct ocfs2_super *osb)
{
@@ -154,6 +194,216 @@ static inline u16 ocfs2_xattr_max_xe_in_bucket(struct super_block *sb)
return len / sizeof(struct ocfs2_xattr_entry);
}
+#define bucket_blkno(_b) ((_b)->bu_bhs[0]->b_blocknr)
+#define bucket_block(_b, _n) ((_b)->bu_bhs[(_n)]->b_data)
+#define bucket_xh(_b) ((struct ocfs2_xattr_header *)bucket_block((_b), 0))
+
+static struct ocfs2_xattr_bucket *ocfs2_xattr_bucket_new(struct inode *inode)
+{
+ struct ocfs2_xattr_bucket *bucket;
+ int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+
+ BUG_ON(blks > OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET);
+
+ bucket = kzalloc(sizeof(struct ocfs2_xattr_bucket), GFP_NOFS);
+ if (bucket) {
+ bucket->bu_inode = inode;
+ bucket->bu_blocks = blks;
+ }
+
+ return bucket;
+}
+
+static void ocfs2_xattr_bucket_relse(struct ocfs2_xattr_bucket *bucket)
+{
+ int i;
+
+ for (i = 0; i < bucket->bu_blocks; i++) {
+ brelse(bucket->bu_bhs[i]);
+ bucket->bu_bhs[i] = NULL;
+ }
+}
+
+static void ocfs2_xattr_bucket_free(struct ocfs2_xattr_bucket *bucket)
+{
+ if (bucket) {
+ ocfs2_xattr_bucket_relse(bucket);
+ bucket->bu_inode = NULL;
+ kfree(bucket);
+ }
+}
+
+/*
+ * A bucket that has never been written to disk doesn't need to be
+ * read. We just need the buffer_heads. Don't call this for
+ * buckets that are already on disk. ocfs2_read_xattr_bucket() initializes
+ * them fully.
+ */
+static int ocfs2_init_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
+ u64 xb_blkno)
+{
+ int i, rc = 0;
+
+ for (i = 0; i < bucket->bu_blocks; i++) {
+ bucket->bu_bhs[i] = sb_getblk(bucket->bu_inode->i_sb,
+ xb_blkno + i);
+ if (!bucket->bu_bhs[i]) {
+ rc = -EIO;
+ mlog_errno(rc);
+ break;
+ }
+
+ if (!ocfs2_buffer_uptodate(bucket->bu_inode,
+ bucket->bu_bhs[i]))
+ ocfs2_set_new_buffer_uptodate(bucket->bu_inode,
+ bucket->bu_bhs[i]);
+ }
+
+ if (rc)
+ ocfs2_xattr_bucket_relse(bucket);
+ return rc;
+}
+
+/* Read the xattr bucket at xb_blkno */
+static int ocfs2_read_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
+ u64 xb_blkno)
+{
+ int rc;
+
+ rc = ocfs2_read_blocks(bucket->bu_inode, xb_blkno,
+ bucket->bu_blocks, bucket->bu_bhs, 0,
+ NULL);
+ if (!rc) {
+ rc = ocfs2_validate_meta_ecc_bhs(bucket->bu_inode->i_sb,
+ bucket->bu_bhs,
+ bucket->bu_blocks,
+ &bucket_xh(bucket)->xh_check);
+ if (rc)
+ mlog_errno(rc);
+ }
+
+ if (rc)
+ ocfs2_xattr_bucket_relse(bucket);
+ return rc;
+}
+
+static int ocfs2_xattr_bucket_journal_access(handle_t *handle,
+ struct ocfs2_xattr_bucket *bucket,
+ int type)
+{
+ int i, rc = 0;
+
+ for (i = 0; i < bucket->bu_blocks; i++) {
+ rc = ocfs2_journal_access(handle, bucket->bu_inode,
+ bucket->bu_bhs[i], type);
+ if (rc) {
+ mlog_errno(rc);
+ break;
+ }
+ }
+
+ return rc;
+}
+
+static void ocfs2_xattr_bucket_journal_dirty(handle_t *handle,
+ struct ocfs2_xattr_bucket *bucket)
+{
+ int i;
+
+ ocfs2_compute_meta_ecc_bhs(bucket->bu_inode->i_sb,
+ bucket->bu_bhs, bucket->bu_blocks,
+ &bucket_xh(bucket)->xh_check);
+
+ for (i = 0; i < bucket->bu_blocks; i++)
+ ocfs2_journal_dirty(handle, bucket->bu_bhs[i]);
+}
+
+static void ocfs2_xattr_bucket_copy_data(struct ocfs2_xattr_bucket *dest,
+ struct ocfs2_xattr_bucket *src)
+{
+ int i;
+ int blocksize = src->bu_inode->i_sb->s_blocksize;
+
+ BUG_ON(dest->bu_blocks != src->bu_blocks);
+ BUG_ON(dest->bu_inode != src->bu_inode);
+
+ for (i = 0; i < src->bu_blocks; i++) {
+ memcpy(bucket_block(dest, i), bucket_block(src, i),
+ blocksize);
+ }
+}
+
+static int ocfs2_validate_xattr_block(struct super_block *sb,
+ struct buffer_head *bh)
+{
+ int rc;
+ struct ocfs2_xattr_block *xb =
+ (struct ocfs2_xattr_block *)bh->b_data;
+
+ mlog(0, "Validating xattr block %llu\n",
+ (unsigned long long)bh->b_blocknr);
+
+ BUG_ON(!buffer_uptodate(bh));
+
+ /*
+ * If the ecc fails, we return the error but otherwise
+ * leave the filesystem running. We know any error is
+ * local to this block.
+ */
+ rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &xb->xb_check);
+ if (rc)
+ return rc;
+
+ /*
+ * Errors after here are fatal
+ */
+
+ if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
+ ocfs2_error(sb,
+ "Extended attribute block #%llu has bad "
+ "signature %.*s",
+ (unsigned long long)bh->b_blocknr, 7,
+ xb->xb_signature);
+ return -EINVAL;
+ }
+
+ if (le64_to_cpu(xb->xb_blkno) != bh->b_blocknr) {
+ ocfs2_error(sb,
+ "Extended attribute block #%llu has an "
+ "invalid xb_blkno of %llu",
+ (unsigned long long)bh->b_blocknr,
+ (unsigned long long)le64_to_cpu(xb->xb_blkno));
+ return -EINVAL;
+ }
+
+ if (le32_to_cpu(xb->xb_fs_generation) != OCFS2_SB(sb)->fs_generation) {
+ ocfs2_error(sb,
+ "Extended attribute block #%llu has an invalid "
+ "xb_fs_generation of #%u",
+ (unsigned long long)bh->b_blocknr,
+ le32_to_cpu(xb->xb_fs_generation));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ocfs2_read_xattr_block(struct inode *inode, u64 xb_blkno,
+ struct buffer_head **bh)
+{
+ int rc;
+ struct buffer_head *tmp = *bh;
+
+ rc = ocfs2_read_block(inode, xb_blkno, &tmp,
+ ocfs2_validate_xattr_block);
+
+ /* If ocfs2_read_block() got us a new bh, pass it up. */
+ if (!rc && !*bh)
+ *bh = tmp;
+
+ return rc;
+}
+
static inline const char *ocfs2_xattr_prefix(int name_index)
{
struct xattr_handler *handler = NULL;
@@ -200,54 +450,163 @@ static void ocfs2_xattr_hash_entry(struct inode *inode,
return;
}
+static int ocfs2_xattr_entry_real_size(int name_len, size_t value_len)
+{
+ int size = 0;
+
+ if (value_len <= OCFS2_XATTR_INLINE_SIZE)
+ size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_SIZE(value_len);
+ else
+ size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
+ size += sizeof(struct ocfs2_xattr_entry);
+
+ return size;
+}
+
+int ocfs2_calc_security_init(struct inode *dir,
+ struct ocfs2_security_xattr_info *si,
+ int *want_clusters,
+ int *xattr_credits,
+ struct ocfs2_alloc_context **xattr_ac)
+{
+ int ret = 0;
+ struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+ int s_size = ocfs2_xattr_entry_real_size(strlen(si->name),
+ si->value_len);
+
+ /*
+ * The max space of security xattr taken inline is
+ * 256(name) + 80(value) + 16(entry) = 352 bytes,
+ * So reserve one metadata block for it is ok.
+ */
+ if (dir->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE ||
+ s_size > OCFS2_XATTR_FREE_IN_IBODY) {
+ ret = ocfs2_reserve_new_metadata_blocks(osb, 1, xattr_ac);
+ if (ret) {
+ mlog_errno(ret);
+ return ret;
+ }
+ *xattr_credits += OCFS2_XATTR_BLOCK_CREATE_CREDITS;
+ }
+
+ /* reserve clusters for xattr value which will be set in B tree*/
+ if (si->value_len > OCFS2_XATTR_INLINE_SIZE) {
+ int new_clusters = ocfs2_clusters_for_bytes(dir->i_sb,
+ si->value_len);
+
+ *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
+ new_clusters);
+ *want_clusters += new_clusters;
+ }
+ return ret;
+}
+
+int ocfs2_calc_xattr_init(struct inode *dir,
+ struct buffer_head *dir_bh,
+ int mode,
+ struct ocfs2_security_xattr_info *si,
+ int *want_clusters,
+ int *xattr_credits,
+ struct ocfs2_alloc_context **xattr_ac)
+{
+ int ret = 0;
+ struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
+ int s_size = 0, a_size = 0, acl_len = 0, new_clusters;
+
+ if (si->enable)
+ s_size = ocfs2_xattr_entry_real_size(strlen(si->name),
+ si->value_len);
+
+ if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
+ acl_len = ocfs2_xattr_get_nolock(dir, dir_bh,
+ OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT,
+ "", NULL, 0);
+ if (acl_len > 0) {
+ a_size = ocfs2_xattr_entry_real_size(0, acl_len);
+ if (S_ISDIR(mode))
+ a_size <<= 1;
+ } else if (acl_len != 0 && acl_len != -ENODATA) {
+ mlog_errno(ret);
+ return ret;
+ }
+ }
+
+ if (!(s_size + a_size))
+ return ret;
+
+ /*
+ * The max space of security xattr taken inline is
+ * 256(name) + 80(value) + 16(entry) = 352 bytes,
+ * The max space of acl xattr taken inline is
+ * 80(value) + 16(entry) * 2(if directory) = 192 bytes,
+ * when blocksize = 512, may reserve one more cluser for
+ * xattr bucket, otherwise reserve one metadata block
+ * for them is ok.
+ */
+ if (dir->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE ||
+ (s_size + a_size) > OCFS2_XATTR_FREE_IN_IBODY) {
+ ret = ocfs2_reserve_new_metadata_blocks(osb, 1, xattr_ac);
+ if (ret) {
+ mlog_errno(ret);
+ return ret;
+ }
+ *xattr_credits += OCFS2_XATTR_BLOCK_CREATE_CREDITS;
+ }
+
+ if (dir->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE &&
+ (s_size + a_size) > OCFS2_XATTR_FREE_IN_BLOCK(dir)) {
+ *want_clusters += 1;
+ *xattr_credits += ocfs2_blocks_per_xattr_bucket(dir->i_sb);
+ }
+
+ /*
+ * reserve credits and clusters for xattrs which has large value
+ * and have to be set outside
+ */
+ if (si->enable && si->value_len > OCFS2_XATTR_INLINE_SIZE) {
+ new_clusters = ocfs2_clusters_for_bytes(dir->i_sb,
+ si->value_len);
+ *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
+ new_clusters);
+ *want_clusters += new_clusters;
+ }
+ if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL &&
+ acl_len > OCFS2_XATTR_INLINE_SIZE) {
+ /* for directory, it has DEFAULT and ACCESS two types of acls */
+ new_clusters = (S_ISDIR(mode) ? 2 : 1) *
+ ocfs2_clusters_for_bytes(dir->i_sb, acl_len);
+ *xattr_credits += ocfs2_clusters_to_blocks(dir->i_sb,
+ new_clusters);
+ *want_clusters += new_clusters;
+ }
+
+ return ret;
+}
+
static int ocfs2_xattr_extend_allocation(struct inode *inode,
u32 clusters_to_add,
- struct buffer_head *xattr_bh,
- struct ocfs2_xattr_value_root *xv)
+ struct ocfs2_xattr_value_buf *vb,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int status = 0;
- int restart_func = 0;
- int credits = 0;
- handle_t *handle = NULL;
- struct ocfs2_alloc_context *data_ac = NULL;
- struct ocfs2_alloc_context *meta_ac = NULL;
+ handle_t *handle = ctxt->handle;
enum ocfs2_alloc_restarted why;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- u32 prev_clusters, logical_start = le32_to_cpu(xv->xr_clusters);
+ u32 prev_clusters, logical_start = le32_to_cpu(vb->vb_xv->xr_clusters);
struct ocfs2_extent_tree et;
mlog(0, "(clusters_to_add for xattr= %u)\n", clusters_to_add);
- ocfs2_init_xattr_value_extent_tree(&et, inode, xattr_bh, xv);
+ ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
-restart_all:
-
- status = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0,
- &data_ac, &meta_ac);
- if (status) {
- mlog_errno(status);
- goto leave;
- }
-
- credits = ocfs2_calc_extend_credits(osb->sb, et.et_root_el,
- clusters_to_add);
- handle = ocfs2_start_trans(osb, credits);
- if (IS_ERR(handle)) {
- status = PTR_ERR(handle);
- handle = NULL;
- mlog_errno(status);
- goto leave;
- }
-
-restarted_transaction:
- status = ocfs2_journal_access(handle, inode, xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ status = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (status < 0) {
mlog_errno(status);
goto leave;
}
- prev_clusters = le32_to_cpu(xv->xr_clusters);
+ prev_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
status = ocfs2_add_clusters_in_btree(osb,
inode,
&logical_start,
@@ -255,157 +614,84 @@ restarted_transaction:
0,
&et,
handle,
- data_ac,
- meta_ac,
+ ctxt->data_ac,
+ ctxt->meta_ac,
&why);
- if ((status < 0) && (status != -EAGAIN)) {
- if (status != -ENOSPC)
- mlog_errno(status);
- goto leave;
- }
-
- status = ocfs2_journal_dirty(handle, xattr_bh);
if (status < 0) {
mlog_errno(status);
goto leave;
}
- clusters_to_add -= le32_to_cpu(xv->xr_clusters) - prev_clusters;
-
- if (why != RESTART_NONE && clusters_to_add) {
- if (why == RESTART_META) {
- mlog(0, "restarting function.\n");
- restart_func = 1;
- } else {
- BUG_ON(why != RESTART_TRANS);
-
- mlog(0, "restarting transaction.\n");
- /* TODO: This can be more intelligent. */
- credits = ocfs2_calc_extend_credits(osb->sb,
- et.et_root_el,
- clusters_to_add);
- status = ocfs2_extend_trans(handle, credits);
- if (status < 0) {
- /* handle still has to be committed at
- * this point. */
- status = -ENOMEM;
- mlog_errno(status);
- goto leave;
- }
- goto restarted_transaction;
- }
+ status = ocfs2_journal_dirty(handle, vb->vb_bh);
+ if (status < 0) {
+ mlog_errno(status);
+ goto leave;
}
+ clusters_to_add -= le32_to_cpu(vb->vb_xv->xr_clusters) - prev_clusters;
+
+ /*
+ * We should have already allocated enough space before the transaction,
+ * so no need to restart.
+ */
+ BUG_ON(why != RESTART_NONE || clusters_to_add);
+
leave:
- if (handle) {
- ocfs2_commit_trans(osb, handle);
- handle = NULL;
- }
- if (data_ac) {
- ocfs2_free_alloc_context(data_ac);
- data_ac = NULL;
- }
- if (meta_ac) {
- ocfs2_free_alloc_context(meta_ac);
- meta_ac = NULL;
- }
- if ((!status) && restart_func) {
- restart_func = 0;
- goto restart_all;
- }
return status;
}
static int __ocfs2_remove_xattr_range(struct inode *inode,
- struct buffer_head *root_bh,
- struct ocfs2_xattr_value_root *xv,
+ struct ocfs2_xattr_value_buf *vb,
u32 cpos, u32 phys_cpos, u32 len,
- struct ocfs2_cached_dealloc_ctxt *dealloc)
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret;
u64 phys_blkno = ocfs2_clusters_to_blocks(inode->i_sb, phys_cpos);
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct inode *tl_inode = osb->osb_tl_inode;
- handle_t *handle;
- struct ocfs2_alloc_context *meta_ac = NULL;
+ handle_t *handle = ctxt->handle;
struct ocfs2_extent_tree et;
- ocfs2_init_xattr_value_extent_tree(&et, inode, root_bh, xv);
+ ocfs2_init_xattr_value_extent_tree(&et, inode, vb);
- ret = ocfs2_lock_allocators(inode, &et, 0, 1, NULL, &meta_ac);
+ ret = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
- mlog_errno(ret);
- return ret;
- }
-
- mutex_lock(&tl_inode->i_mutex);
-
- if (ocfs2_truncate_log_needs_flush(osb)) {
- ret = __ocfs2_flush_truncate_log(osb);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
- }
-
- handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_remove_extent(inode, &et, cpos, len, handle, ctxt->meta_ac,
+ &ctxt->dealloc);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
- ret = ocfs2_remove_extent(inode, &et, cpos, len, handle, meta_ac,
- dealloc);
+ le32_add_cpu(&vb->vb_xv->xr_clusters, -len);
+
+ ret = ocfs2_journal_dirty(handle, vb->vb_bh);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
- le32_add_cpu(&xv->xr_clusters, -len);
-
- ret = ocfs2_journal_dirty(handle, root_bh);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
-
- ret = ocfs2_truncate_log_append(osb, handle, phys_blkno, len);
+ ret = ocfs2_cache_cluster_dealloc(&ctxt->dealloc, phys_blkno, len);
if (ret)
mlog_errno(ret);
-out_commit:
- ocfs2_commit_trans(osb, handle);
out:
- mutex_unlock(&tl_inode->i_mutex);
-
- if (meta_ac)
- ocfs2_free_alloc_context(meta_ac);
-
return ret;
}
static int ocfs2_xattr_shrink_size(struct inode *inode,
u32 old_clusters,
u32 new_clusters,
- struct buffer_head *root_bh,
- struct ocfs2_xattr_value_root *xv)
+ struct ocfs2_xattr_value_buf *vb,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret = 0;
u32 trunc_len, cpos, phys_cpos, alloc_size;
u64 block;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct ocfs2_cached_dealloc_ctxt dealloc;
-
- ocfs2_init_dealloc_ctxt(&dealloc);
if (old_clusters <= new_clusters)
return 0;
@@ -414,7 +700,8 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
trunc_len = old_clusters - new_clusters;
while (trunc_len) {
ret = ocfs2_xattr_get_clusters(inode, cpos, &phys_cpos,
- &alloc_size, &xv->xr_list);
+ &alloc_size,
+ &vb->vb_xv->xr_list);
if (ret) {
mlog_errno(ret);
goto out;
@@ -423,9 +710,9 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
if (alloc_size > trunc_len)
alloc_size = trunc_len;
- ret = __ocfs2_remove_xattr_range(inode, root_bh, xv, cpos,
+ ret = __ocfs2_remove_xattr_range(inode, vb, cpos,
phys_cpos, alloc_size,
- &dealloc);
+ ctxt);
if (ret) {
mlog_errno(ret);
goto out;
@@ -439,20 +726,17 @@ static int ocfs2_xattr_shrink_size(struct inode *inode,
}
out:
- ocfs2_schedule_truncate_log_flush(osb, 1);
- ocfs2_run_deallocs(osb, &dealloc);
-
return ret;
}
static int ocfs2_xattr_value_truncate(struct inode *inode,
- struct buffer_head *root_bh,
- struct ocfs2_xattr_value_root *xv,
- int len)
+ struct ocfs2_xattr_value_buf *vb,
+ int len,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret;
u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb, len);
- u32 old_clusters = le32_to_cpu(xv->xr_clusters);
+ u32 old_clusters = le32_to_cpu(vb->vb_xv->xr_clusters);
if (new_clusters == old_clusters)
return 0;
@@ -460,11 +744,11 @@ static int ocfs2_xattr_value_truncate(struct inode *inode,
if (new_clusters > old_clusters)
ret = ocfs2_xattr_extend_allocation(inode,
new_clusters - old_clusters,
- root_bh, xv);
+ vb, ctxt);
else
ret = ocfs2_xattr_shrink_size(inode,
old_clusters, new_clusters,
- root_bh, xv);
+ vb, ctxt);
return ret;
}
@@ -554,18 +838,14 @@ static int ocfs2_xattr_block_list(struct inode *inode,
if (!di->i_xattr_loc)
return ret;
- ret = ocfs2_read_block(inode, le64_to_cpu(di->i_xattr_loc), &blk_bh);
+ ret = ocfs2_read_xattr_block(inode, le64_to_cpu(di->i_xattr_loc),
+ &blk_bh);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
- if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
- ret = -EIO;
- goto cleanup;
- }
-
if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
struct ocfs2_xattr_header *header = &xb->xb_attrs.xb_header;
ret = ocfs2_xattr_list_entries(inode, header,
@@ -575,7 +855,7 @@ static int ocfs2_xattr_block_list(struct inode *inode,
ret = ocfs2_xattr_tree_list_index_block(inode, xt,
buffer, buffer_size);
}
-cleanup:
+
brelse(blk_bh);
return ret;
@@ -685,7 +965,7 @@ static int ocfs2_xattr_get_value_outside(struct inode *inode,
blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster);
/* Copy ocfs2_xattr_value */
for (i = 0; i < num_clusters * bpc; i++, blkno++) {
- ret = ocfs2_read_block(inode, blkno, &bh);
+ ret = ocfs2_read_block(inode, blkno, &bh, NULL);
if (ret) {
mlog_errno(ret);
goto out;
@@ -769,7 +1049,12 @@ static int ocfs2_xattr_block_get(struct inode *inode,
size_t size;
int ret = -ENODATA, name_offset, name_len, block_off, i;
- memset(&xs->bucket, 0, sizeof(xs->bucket));
+ xs->bucket = ocfs2_xattr_bucket_new(inode);
+ if (!xs->bucket) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto cleanup;
+ }
ret = ocfs2_xattr_block_find(inode, name_index, name, xs);
if (ret) {
@@ -795,11 +1080,11 @@ static int ocfs2_xattr_block_get(struct inode *inode,
if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
ret = ocfs2_xattr_bucket_get_name_value(inode,
- xs->bucket.xh,
+ bucket_xh(xs->bucket),
i,
&block_off,
&name_offset);
- xs->base = xs->bucket.bhs[block_off]->b_data;
+ xs->base = bucket_block(xs->bucket, block_off);
}
if (ocfs2_xattr_is_local(xs->here)) {
memcpy(buffer, (void *)xs->base +
@@ -817,15 +1102,50 @@ static int ocfs2_xattr_block_get(struct inode *inode,
}
ret = size;
cleanup:
- for (i = 0; i < OCFS2_XATTR_MAX_BLOCKS_PER_BUCKET; i++)
- brelse(xs->bucket.bhs[i]);
- memset(&xs->bucket, 0, sizeof(xs->bucket));
+ ocfs2_xattr_bucket_free(xs->bucket);
brelse(xs->xattr_bh);
xs->xattr_bh = NULL;
return ret;
}
+int ocfs2_xattr_get_nolock(struct inode *inode,
+ struct buffer_head *di_bh,
+ int name_index,
+ const char *name,
+ void *buffer,
+ size_t buffer_size)
+{
+ int ret;
+ struct ocfs2_dinode *di = NULL;
+ struct ocfs2_inode_info *oi = OCFS2_I(inode);
+ struct ocfs2_xattr_search xis = {
+ .not_found = -ENODATA,
+ };
+ struct ocfs2_xattr_search xbs = {
+ .not_found = -ENODATA,
+ };
+
+ if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
+ return -EOPNOTSUPP;
+
+ if (!(oi->ip_dyn_features & OCFS2_HAS_XATTR_FL))
+ ret = -ENODATA;
+
+ xis.inode_bh = xbs.inode_bh = di_bh;
+ di = (struct ocfs2_dinode *)di_bh->b_data;
+
+ down_read(&oi->ip_xattr_sem);
+ ret = ocfs2_xattr_ibody_get(inode, name_index, name, buffer,
+ buffer_size, &xis);
+ if (ret == -ENODATA && di->i_xattr_loc)
+ ret = ocfs2_xattr_block_get(inode, name_index, name, buffer,
+ buffer_size, &xbs);
+ up_read(&oi->ip_xattr_sem);
+
+ return ret;
+}
+
/* ocfs2_xattr_get()
*
* Copy an extended attribute into the buffer provided.
@@ -838,37 +1158,16 @@ static int ocfs2_xattr_get(struct inode *inode,
size_t buffer_size)
{
int ret;
- struct ocfs2_dinode *di = NULL;
struct buffer_head *di_bh = NULL;
- struct ocfs2_inode_info *oi = OCFS2_I(inode);
- struct ocfs2_xattr_search xis = {
- .not_found = -ENODATA,
- };
- struct ocfs2_xattr_search xbs = {
- .not_found = -ENODATA,
- };
-
- if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
- return -EOPNOTSUPP;
-
- if (!(oi->ip_dyn_features & OCFS2_HAS_XATTR_FL))
- ret = -ENODATA;
ret = ocfs2_inode_lock(inode, &di_bh, 0);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
- xis.inode_bh = xbs.inode_bh = di_bh;
- di = (struct ocfs2_dinode *)di_bh->b_data;
+ ret = ocfs2_xattr_get_nolock(inode, di_bh, name_index,
+ name, buffer, buffer_size);
- down_read(&oi->ip_xattr_sem);
- ret = ocfs2_xattr_ibody_get(inode, name_index, name, buffer,
- buffer_size, &xis);
- if (ret == -ENODATA && di->i_xattr_loc)
- ret = ocfs2_xattr_block_get(inode, name_index, name, buffer,
- buffer_size, &xbs);
- up_read(&oi->ip_xattr_sem);
ocfs2_inode_unlock(inode, 0);
brelse(di_bh);
@@ -877,44 +1176,36 @@ static int ocfs2_xattr_get(struct inode *inode,
}
static int __ocfs2_xattr_set_value_outside(struct inode *inode,
+ handle_t *handle,
struct ocfs2_xattr_value_root *xv,
const void *value,
int value_len)
{
- int ret = 0, i, cp_len, credits;
+ int ret = 0, i, cp_len;
u16 blocksize = inode->i_sb->s_blocksize;
u32 p_cluster, num_clusters;
u32 cpos = 0, bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
u32 clusters = ocfs2_clusters_for_bytes(inode->i_sb, value_len);
u64 blkno;
struct buffer_head *bh = NULL;
- handle_t *handle;
BUG_ON(clusters > le32_to_cpu(xv->xr_clusters));
- credits = clusters * bpc;
- handle = ocfs2_start_trans(OCFS2_SB(inode->i_sb), credits);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- mlog_errno(ret);
- goto out;
- }
-
while (cpos < clusters) {
ret = ocfs2_xattr_get_clusters(inode, cpos, &p_cluster,
&num_clusters, &xv->xr_list);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cluster);
for (i = 0; i < num_clusters * bpc; i++, blkno++) {
- ret = ocfs2_read_block(inode, blkno, &bh);
+ ret = ocfs2_read_block(inode, blkno, &bh, NULL);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
ret = ocfs2_journal_access(handle,
@@ -923,7 +1214,7 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
cp_len = value_len > blocksize ? blocksize : value_len;
@@ -937,7 +1228,7 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
ret = ocfs2_journal_dirty(handle, bh);
if (ret < 0) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
brelse(bh);
bh = NULL;
@@ -951,8 +1242,6 @@ static int __ocfs2_xattr_set_value_outside(struct inode *inode,
}
cpos += num_clusters;
}
-out_commit:
- ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
out:
brelse(bh);
@@ -960,28 +1249,22 @@ out:
}
static int ocfs2_xattr_cleanup(struct inode *inode,
+ handle_t *handle,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_value_buf *vb,
size_t offs)
{
- handle_t *handle = NULL;
int ret = 0;
size_t name_len = strlen(xi->name);
void *val = xs->base + offs;
size_t size = OCFS2_XATTR_SIZE(name_len) + OCFS2_XATTR_ROOT_SIZE;
- handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)),
- OCFS2_XATTR_BLOCK_UPDATE_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- mlog_errno(ret);
- goto out;
- }
- ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
/* Decrease xattr count */
le16_add_cpu(&xs->header->xh_count, -1);
@@ -989,35 +1272,27 @@ static int ocfs2_xattr_cleanup(struct inode *inode,
memset((void *)xs->here, 0, sizeof(struct ocfs2_xattr_entry));
memset(val, 0, size);
- ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
+ ret = ocfs2_journal_dirty(handle, vb->vb_bh);
if (ret < 0)
mlog_errno(ret);
-out_commit:
- ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
out:
return ret;
}
static int ocfs2_xattr_update_entry(struct inode *inode,
+ handle_t *handle,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_value_buf *vb,
size_t offs)
{
- handle_t *handle = NULL;
- int ret = 0;
+ int ret;
- handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)),
- OCFS2_XATTR_BLOCK_UPDATE_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- mlog_errno(ret);
- goto out;
- }
- ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = vb->vb_access(handle, inode, vb->vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
xs->here->xe_name_offset = cpu_to_le16(offs);
@@ -1028,11 +1303,9 @@ static int ocfs2_xattr_update_entry(struct inode *inode,
ocfs2_xattr_set_local(xs->here, 0);
ocfs2_xattr_hash_entry(inode, xs->header, xs->here);
- ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
+ ret = ocfs2_journal_dirty(handle, vb->vb_bh);
if (ret < 0)
mlog_errno(ret);
-out_commit:
- ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
out:
return ret;
}
@@ -1045,6 +1318,8 @@ out:
static int ocfs2_xattr_set_value_outside(struct inode *inode,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt,
+ struct ocfs2_xattr_value_buf *vb,
size_t offs)
{
size_t name_len = strlen(xi->name);
@@ -1062,20 +1337,20 @@ static int ocfs2_xattr_set_value_outside(struct inode *inode,
xv->xr_list.l_tree_depth = 0;
xv->xr_list.l_count = cpu_to_le16(1);
xv->xr_list.l_next_free_rec = 0;
+ vb->vb_xv = xv;
- ret = ocfs2_xattr_value_truncate(inode, xs->xattr_bh, xv,
- xi->value_len);
+ ret = ocfs2_xattr_value_truncate(inode, vb, xi->value_len, ctxt);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
- ret = __ocfs2_xattr_set_value_outside(inode, xv, xi->value,
- xi->value_len);
+ ret = ocfs2_xattr_update_entry(inode, ctxt->handle, xi, xs, vb, offs);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
- ret = ocfs2_xattr_update_entry(inode, xi, xs, offs);
+ ret = __ocfs2_xattr_set_value_outside(inode, ctxt->handle, vb->vb_xv,
+ xi->value, xi->value_len);
if (ret < 0)
mlog_errno(ret);
@@ -1195,6 +1470,7 @@ static void ocfs2_xattr_set_entry_local(struct inode *inode,
static int ocfs2_xattr_set_entry(struct inode *inode,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt,
int flag)
{
struct ocfs2_xattr_entry *last;
@@ -1202,7 +1478,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
size_t min_offs = xs->end - xs->base, name_len = strlen(xi->name);
size_t size_l = 0;
- handle_t *handle = NULL;
+ handle_t *handle = ctxt->handle;
int free, i, ret;
struct ocfs2_xattr_info xi_l = {
.name_index = xi->name_index,
@@ -1210,6 +1486,16 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
.value = xi->value,
.value_len = xi->value_len,
};
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = xs->xattr_bh,
+ .vb_access = ocfs2_journal_access_di,
+ };
+
+ if (!(flag & OCFS2_INLINE_XATTR_FL)) {
+ BUG_ON(xs->xattr_bh == xs->inode_bh);
+ vb.vb_access = ocfs2_journal_access_xb;
+ } else
+ BUG_ON(xs->xattr_bh != xs->inode_bh);
/* Compute min_offs, last and free space. */
last = xs->header->xh_entries;
@@ -1265,15 +1551,14 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
if (ocfs2_xattr_is_local(xs->here) && size == size_l) {
/* Replace existing local xattr with tree root */
ret = ocfs2_xattr_set_value_outside(inode, xi, xs,
- offs);
+ ctxt, &vb, offs);
if (ret < 0)
mlog_errno(ret);
goto out;
} else if (!ocfs2_xattr_is_local(xs->here)) {
/* For existing xattr which has value outside */
- struct ocfs2_xattr_value_root *xv = NULL;
- xv = (struct ocfs2_xattr_value_root *)(val +
- OCFS2_XATTR_SIZE(name_len));
+ vb.vb_xv = (struct ocfs2_xattr_value_root *)
+ (val + OCFS2_XATTR_SIZE(name_len));
if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
/*
@@ -1282,27 +1567,30 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
* then set new value with set_value_outside().
*/
ret = ocfs2_xattr_value_truncate(inode,
- xs->xattr_bh,
- xv,
- xi->value_len);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
-
- ret = __ocfs2_xattr_set_value_outside(inode,
- xv,
- xi->value,
- xi->value_len);
+ &vb,
+ xi->value_len,
+ ctxt);
if (ret < 0) {
mlog_errno(ret);
goto out;
}
ret = ocfs2_xattr_update_entry(inode,
+ handle,
xi,
xs,
+ &vb,
offs);
+ if (ret < 0) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = __ocfs2_xattr_set_value_outside(inode,
+ handle,
+ vb.vb_xv,
+ xi->value,
+ xi->value_len);
if (ret < 0)
mlog_errno(ret);
goto out;
@@ -1312,44 +1600,28 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
* just trucate old value to zero.
*/
ret = ocfs2_xattr_value_truncate(inode,
- xs->xattr_bh,
- xv,
- 0);
+ &vb,
+ 0,
+ ctxt);
if (ret < 0)
mlog_errno(ret);
}
}
}
- handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)),
- OCFS2_INODE_UPDATE_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
+ ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
-
if (!(flag & OCFS2_INLINE_XATTR_FL)) {
- /* set extended attribute in external block. */
- ret = ocfs2_extend_trans(handle,
- OCFS2_INODE_UPDATE_CREDITS +
- OCFS2_XATTR_BLOCK_UPDATE_CREDITS);
+ ret = vb.vb_access(handle, inode, vb.vb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
- goto out_commit;
- }
- ret = ocfs2_journal_access(handle, inode, xs->xattr_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
+ goto out;
}
}
@@ -1363,7 +1635,7 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
ret = ocfs2_journal_dirty(handle, xs->xattr_bh);
if (ret < 0) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
}
@@ -1391,25 +1663,19 @@ static int ocfs2_xattr_set_entry(struct inode *inode,
oi->ip_dyn_features |= flag;
di->i_dyn_features = cpu_to_le16(oi->ip_dyn_features);
spin_unlock(&oi->ip_lock);
- /* Update inode ctime */
- inode->i_ctime = CURRENT_TIME;
- di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
- di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
ret = ocfs2_journal_dirty(handle, xs->inode_bh);
if (ret < 0)
mlog_errno(ret);
-out_commit:
- ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
-
if (!ret && xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
/*
* Set value outside in B tree.
* This is the second step for value size > INLINE_SIZE.
*/
size_t offs = le16_to_cpu(xs->here->xe_name_offset);
- ret = ocfs2_xattr_set_value_outside(inode, xi, xs, offs);
+ ret = ocfs2_xattr_set_value_outside(inode, xi, xs, ctxt,
+ &vb, offs);
if (ret < 0) {
int ret2;
@@ -1418,41 +1684,56 @@ out_commit:
* If set value outside failed, we have to clean
* the junk tree root we have already set in local.
*/
- ret2 = ocfs2_xattr_cleanup(inode, xi, xs, offs);
+ ret2 = ocfs2_xattr_cleanup(inode, ctxt->handle,
+ xi, xs, &vb, offs);
if (ret2 < 0)
mlog_errno(ret2);
}
}
out:
return ret;
-
}
static int ocfs2_remove_value_outside(struct inode*inode,
- struct buffer_head *bh,
+ struct ocfs2_xattr_value_buf *vb,
struct ocfs2_xattr_header *header)
{
int ret = 0, i;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_xattr_set_ctxt ctxt = { NULL, NULL, };
+
+ ocfs2_init_dealloc_ctxt(&ctxt.dealloc);
+
+ ctxt.handle = ocfs2_start_trans(osb,
+ ocfs2_remove_extent_credits(osb->sb));
+ if (IS_ERR(ctxt.handle)) {
+ ret = PTR_ERR(ctxt.handle);
+ mlog_errno(ret);
+ goto out;
+ }
for (i = 0; i < le16_to_cpu(header->xh_count); i++) {
struct ocfs2_xattr_entry *entry = &header->xh_entries[i];
if (!ocfs2_xattr_is_local(entry)) {
- struct ocfs2_xattr_value_root *xv;
void *val;
val = (void *)header +
le16_to_cpu(entry->xe_name_offset);
- xv = (struct ocfs2_xattr_value_root *)
+ vb->vb_xv = (struct ocfs2_xattr_value_root *)
(val + OCFS2_XATTR_SIZE(entry->xe_name_len));
- ret = ocfs2_xattr_value_truncate(inode, bh, xv, 0);
+ ret = ocfs2_xattr_value_truncate(inode, vb, 0, &ctxt);
if (ret < 0) {
mlog_errno(ret);
- return ret;
+ break;
}
}
}
+ ocfs2_commit_trans(osb, ctxt.handle);
+ ocfs2_schedule_truncate_log_flush(osb, 1);
+ ocfs2_run_deallocs(osb, &ctxt.dealloc);
+out:
return ret;
}
@@ -1463,12 +1744,16 @@ static int ocfs2_xattr_ibody_remove(struct inode *inode,
struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
struct ocfs2_xattr_header *header;
int ret;
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = di_bh,
+ .vb_access = ocfs2_journal_access_di,
+ };
header = (struct ocfs2_xattr_header *)
((void *)di + inode->i_sb->s_blocksize -
le16_to_cpu(di->i_xattr_inline_size));
- ret = ocfs2_remove_value_outside(inode, di_bh, header);
+ ret = ocfs2_remove_value_outside(inode, &vb, header);
return ret;
}
@@ -1478,11 +1763,15 @@ static int ocfs2_xattr_block_remove(struct inode *inode,
{
struct ocfs2_xattr_block *xb;
int ret = 0;
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_bh = blk_bh,
+ .vb_access = ocfs2_journal_access_xb,
+ };
xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
struct ocfs2_xattr_header *header = &(xb->xb_attrs.xb_header);
- ret = ocfs2_remove_value_outside(inode, blk_bh, header);
+ ret = ocfs2_remove_value_outside(inode, &vb, header);
} else
ret = ocfs2_delete_xattr_index_block(inode, blk_bh);
@@ -1502,24 +1791,19 @@ static int ocfs2_xattr_free_block(struct inode *inode,
u64 blk, bg_blkno;
u16 bit;
- ret = ocfs2_read_block(inode, block, &blk_bh);
+ ret = ocfs2_read_xattr_block(inode, block, &blk_bh);
if (ret < 0) {
mlog_errno(ret);
goto out;
}
- xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
- if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
- ret = -EIO;
- goto out;
- }
-
ret = ocfs2_xattr_block_remove(inode, blk_bh);
if (ret < 0) {
mlog_errno(ret);
goto out;
}
+ xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
blk = le64_to_cpu(xb->xb_blkno);
bit = le16_to_cpu(xb->xb_suballoc_bit);
bg_blkno = ocfs2_which_suballoc_group(blk, bit);
@@ -1606,8 +1890,8 @@ int ocfs2_xattr_remove(struct inode *inode, struct buffer_head *di_bh)
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode, di_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_di(handle, inode, di_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -1714,7 +1998,8 @@ static int ocfs2_xattr_ibody_find(struct inode *inode,
*/
static int ocfs2_xattr_ibody_set(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
struct ocfs2_inode_info *oi = OCFS2_I(inode);
struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
@@ -1731,7 +2016,7 @@ static int ocfs2_xattr_ibody_set(struct inode *inode,
}
}
- ret = ocfs2_xattr_set_entry(inode, xi, xs,
+ ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
(OCFS2_INLINE_XATTR_FL | OCFS2_HAS_XATTR_FL));
out:
up_write(&oi->ip_alloc_sem);
@@ -1758,19 +2043,15 @@ static int ocfs2_xattr_block_find(struct inode *inode,
if (!di->i_xattr_loc)
return ret;
- ret = ocfs2_read_block(inode, le64_to_cpu(di->i_xattr_loc), &blk_bh);
+ ret = ocfs2_read_xattr_block(inode, le64_to_cpu(di->i_xattr_loc),
+ &blk_bh);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
- xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
- if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
- ret = -EIO;
- goto cleanup;
- }
-
xs->xattr_bh = blk_bh;
+ xb = (struct ocfs2_xattr_block *)blk_bh->b_data;
if (!(le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED)) {
xs->header = &xb->xb_attrs.xb_header;
@@ -1804,13 +2085,13 @@ cleanup:
*/
static int ocfs2_xattr_block_set(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
struct buffer_head *new_bh = NULL;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_dinode *di = (struct ocfs2_dinode *)xs->inode_bh->b_data;
- struct ocfs2_alloc_context *meta_ac = NULL;
- handle_t *handle = NULL;
+ handle_t *handle = ctxt->handle;
struct ocfs2_xattr_block *xblk = NULL;
u16 suballoc_bit_start;
u32 num_got;
@@ -1818,45 +2099,29 @@ static int ocfs2_xattr_block_set(struct inode *inode,
int ret;
if (!xs->xattr_bh) {
- /*
- * Alloc one external block for extended attribute
- * outside of inode.
- */
- ret = ocfs2_reserve_new_metadata_blocks(osb, 1, &meta_ac);
+ ret = ocfs2_journal_access_di(handle, inode, xs->inode_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
mlog_errno(ret);
- goto out;
- }
- handle = ocfs2_start_trans(osb,
- OCFS2_XATTR_BLOCK_CREATE_CREDITS);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- mlog_errno(ret);
- goto out;
- }
- ret = ocfs2_journal_access(handle, inode, xs->inode_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
- if (ret < 0) {
- mlog_errno(ret);
- goto out_commit;
+ goto end;
}
- ret = ocfs2_claim_metadata(osb, handle, meta_ac, 1,
+ ret = ocfs2_claim_metadata(osb, handle, ctxt->meta_ac, 1,
&suballoc_bit_start, &num_got,
&first_blkno);
if (ret < 0) {
mlog_errno(ret);
- goto out_commit;
+ goto end;
}
new_bh = sb_getblk(inode->i_sb, first_blkno);
ocfs2_set_new_buffer_uptodate(inode, new_bh);
- ret = ocfs2_journal_access(handle, inode, new_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_journal_access_xb(handle, inode, new_bh,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (ret < 0) {
mlog_errno(ret);
- goto out_commit;
+ goto end;
}
/* Initialize ocfs2_xattr_block */
@@ -1874,44 +2139,555 @@ static int ocfs2_xattr_block_set(struct inode *inode,
xs->end = (void *)xblk + inode->i_sb->s_blocksize;
xs->here = xs->header->xh_entries;
-
ret = ocfs2_journal_dirty(handle, new_bh);
if (ret < 0) {
mlog_errno(ret);
- goto out_commit;
+ goto end;
}
di->i_xattr_loc = cpu_to_le64(first_blkno);
- ret = ocfs2_journal_dirty(handle, xs->inode_bh);
- if (ret < 0)
- mlog_errno(ret);
-out_commit:
- ocfs2_commit_trans(osb, handle);
-out:
- if (meta_ac)
- ocfs2_free_alloc_context(meta_ac);
- if (ret < 0)
- return ret;
+ ocfs2_journal_dirty(handle, xs->inode_bh);
} else
xblk = (struct ocfs2_xattr_block *)xs->xattr_bh->b_data;
if (!(le16_to_cpu(xblk->xb_flags) & OCFS2_XATTR_INDEXED)) {
/* Set extended attribute into external block */
- ret = ocfs2_xattr_set_entry(inode, xi, xs, OCFS2_HAS_XATTR_FL);
+ ret = ocfs2_xattr_set_entry(inode, xi, xs, ctxt,
+ OCFS2_HAS_XATTR_FL);
if (!ret || ret != -ENOSPC)
goto end;
- ret = ocfs2_xattr_create_index_block(inode, xs);
+ ret = ocfs2_xattr_create_index_block(inode, xs, ctxt);
if (ret)
goto end;
}
- ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs);
+ ret = ocfs2_xattr_set_entry_index_block(inode, xi, xs, ctxt);
end:
return ret;
}
+/* Check whether the new xattr can be inserted into the inode. */
+static int ocfs2_xattr_can_be_in_inode(struct inode *inode,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xs)
+{
+ u64 value_size;
+ struct ocfs2_xattr_entry *last;
+ int free, i;
+ size_t min_offs = xs->end - xs->base;
+
+ if (!xs->header)
+ return 0;
+
+ last = xs->header->xh_entries;
+
+ for (i = 0; i < le16_to_cpu(xs->header->xh_count); i++) {
+ size_t offs = le16_to_cpu(last->xe_name_offset);
+ if (offs < min_offs)
+ min_offs = offs;
+ last += 1;
+ }
+
+ free = min_offs - ((void *)last - xs->base) - sizeof(__u32);
+ if (free < 0)
+ return 0;
+
+ BUG_ON(!xs->not_found);
+
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
+ value_size = OCFS2_XATTR_ROOT_SIZE;
+ else
+ value_size = OCFS2_XATTR_SIZE(xi->value_len);
+
+ if (free >= sizeof(struct ocfs2_xattr_entry) +
+ OCFS2_XATTR_SIZE(strlen(xi->name)) + value_size)
+ return 1;
+
+ return 0;
+}
+
+static int ocfs2_calc_xattr_set_need(struct inode *inode,
+ struct ocfs2_dinode *di,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xis,
+ struct ocfs2_xattr_search *xbs,
+ int *clusters_need,
+ int *meta_need,
+ int *credits_need)
+{
+ int ret = 0, old_in_xb = 0;
+ int clusters_add = 0, meta_add = 0, credits = 0;
+ struct buffer_head *bh = NULL;
+ struct ocfs2_xattr_block *xb = NULL;
+ struct ocfs2_xattr_entry *xe = NULL;
+ struct ocfs2_xattr_value_root *xv = NULL;
+ char *base = NULL;
+ int name_offset, name_len = 0;
+ u32 new_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
+ xi->value_len);
+ u64 value_size;
+
+ /*
+ * Calculate the clusters we need to write.
+ * No matter whether we replace an old one or add a new one,
+ * we need this for writing.
+ */
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE)
+ credits += new_clusters *
+ ocfs2_clusters_to_blocks(inode->i_sb, 1);
+
+ if (xis->not_found && xbs->not_found) {
+ credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
+ clusters_add += new_clusters;
+ credits += ocfs2_calc_extend_credits(inode->i_sb,
+ &def_xv.xv.xr_list,
+ new_clusters);
+ }
+
+ goto meta_guess;
+ }
+
+ if (!xis->not_found) {
+ xe = xis->here;
+ name_offset = le16_to_cpu(xe->xe_name_offset);
+ name_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
+ base = xis->base;
+ credits += OCFS2_INODE_UPDATE_CREDITS;
+ } else {
+ int i, block_off = 0;
+ xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data;
+ xe = xbs->here;
+ name_offset = le16_to_cpu(xe->xe_name_offset);
+ name_len = OCFS2_XATTR_SIZE(xe->xe_name_len);
+ i = xbs->here - xbs->header->xh_entries;
+ old_in_xb = 1;
+
+ if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
+ ret = ocfs2_xattr_bucket_get_name_value(inode,
+ bucket_xh(xbs->bucket),
+ i, &block_off,
+ &name_offset);
+ base = bucket_block(xbs->bucket, block_off);
+ credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ } else {
+ base = xbs->base;
+ credits += OCFS2_XATTR_BLOCK_UPDATE_CREDITS;
+ }
+ }
+
+ /*
+ * delete a xattr doesn't need metadata and cluster allocation.
+ * so just calculate the credits and return.
+ *
+ * The credits for removing the value tree will be extended
+ * by ocfs2_remove_extent itself.
+ */
+ if (!xi->value) {
+ if (!ocfs2_xattr_is_local(xe))
+ credits += ocfs2_remove_extent_credits(inode->i_sb);
+
+ goto out;
+ }
+
+ /* do cluster allocation guess first. */
+ value_size = le64_to_cpu(xe->xe_value_size);
+
+ if (old_in_xb) {
+ /*
+ * In xattr set, we always try to set the xe in inode first,
+ * so if it can be inserted into inode successfully, the old
+ * one will be removed from the xattr block, and this xattr
+ * will be inserted into inode as a new xattr in inode.
+ */
+ if (ocfs2_xattr_can_be_in_inode(inode, xi, xis)) {
+ clusters_add += new_clusters;
+ credits += ocfs2_remove_extent_credits(inode->i_sb) +
+ OCFS2_INODE_UPDATE_CREDITS;
+ if (!ocfs2_xattr_is_local(xe))
+ credits += ocfs2_calc_extend_credits(
+ inode->i_sb,
+ &def_xv.xv.xr_list,
+ new_clusters);
+ goto out;
+ }
+ }
+
+ if (xi->value_len > OCFS2_XATTR_INLINE_SIZE) {
+ /* the new values will be stored outside. */
+ u32 old_clusters = 0;
+
+ if (!ocfs2_xattr_is_local(xe)) {
+ old_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
+ value_size);
+ xv = (struct ocfs2_xattr_value_root *)
+ (base + name_offset + name_len);
+ value_size = OCFS2_XATTR_ROOT_SIZE;
+ } else
+ xv = &def_xv.xv;
+
+ if (old_clusters >= new_clusters) {
+ credits += ocfs2_remove_extent_credits(inode->i_sb);
+ goto out;
+ } else {
+ meta_add += ocfs2_extend_meta_needed(&xv->xr_list);
+ clusters_add += new_clusters - old_clusters;
+ credits += ocfs2_calc_extend_credits(inode->i_sb,
+ &xv->xr_list,
+ new_clusters -
+ old_clusters);
+ if (value_size >= OCFS2_XATTR_ROOT_SIZE)
+ goto out;
+ }
+ } else {
+ /*
+ * Now the new value will be stored inside. So if the new
+ * value is smaller than the size of value root or the old
+ * value, we don't need any allocation, otherwise we have
+ * to guess metadata allocation.
+ */
+ if ((ocfs2_xattr_is_local(xe) && value_size >= xi->value_len) ||
+ (!ocfs2_xattr_is_local(xe) &&
+ OCFS2_XATTR_ROOT_SIZE >= xi->value_len))
+ goto out;
+ }
+
+meta_guess:
+ /* calculate metadata allocation. */
+ if (di->i_xattr_loc) {
+ if (!xbs->xattr_bh) {
+ ret = ocfs2_read_xattr_block(inode,
+ le64_to_cpu(di->i_xattr_loc),
+ &bh);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ xb = (struct ocfs2_xattr_block *)bh->b_data;
+ } else
+ xb = (struct ocfs2_xattr_block *)xbs->xattr_bh->b_data;
+
+ /*
+ * If there is already an xattr tree, good, we can calculate
+ * like other b-trees. Otherwise we may have the chance of
+ * create a tree, the credit calculation is borrowed from
+ * ocfs2_calc_extend_credits with root_el = NULL. And the
+ * new tree will be cluster based, so no meta is needed.
+ */
+ if (le16_to_cpu(xb->xb_flags) & OCFS2_XATTR_INDEXED) {
+ struct ocfs2_extent_list *el =
+ &xb->xb_attrs.xb_root.xt_list;
+ meta_add += ocfs2_extend_meta_needed(el);
+ credits += ocfs2_calc_extend_credits(inode->i_sb,
+ el, 1);
+ } else
+ credits += OCFS2_SUBALLOC_ALLOC + 1;
+
+ /*
+ * This cluster will be used either for new bucket or for
+ * new xattr block.
+ * If the cluster size is the same as the bucket size, one
+ * more is needed since we may need to extend the bucket
+ * also.
+ */
+ clusters_add += 1;
+ credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ if (OCFS2_XATTR_BUCKET_SIZE ==
+ OCFS2_SB(inode->i_sb)->s_clustersize) {
+ credits += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ clusters_add += 1;
+ }
+ } else {
+ meta_add += 1;
+ credits += OCFS2_XATTR_BLOCK_CREATE_CREDITS;
+ }
+out:
+ if (clusters_need)
+ *clusters_need = clusters_add;
+ if (meta_need)
+ *meta_need = meta_add;
+ if (credits_need)
+ *credits_need = credits;
+ brelse(bh);
+ return ret;
+}
+
+static int ocfs2_init_xattr_set_ctxt(struct inode *inode,
+ struct ocfs2_dinode *di,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xis,
+ struct ocfs2_xattr_search *xbs,
+ struct ocfs2_xattr_set_ctxt *ctxt,
+ int *credits)
+{
+ int clusters_add, meta_add, ret;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+
+ memset(ctxt, 0, sizeof(struct ocfs2_xattr_set_ctxt));
+
+ ocfs2_init_dealloc_ctxt(&ctxt->dealloc);
+
+ ret = ocfs2_calc_xattr_set_need(inode, di, xi, xis, xbs,
+ &clusters_add, &meta_add, credits);
+ if (ret) {
+ mlog_errno(ret);
+ return ret;
+ }
+
+ mlog(0, "Set xattr %s, reserve meta blocks = %d, clusters = %d, "
+ "credits = %d\n", xi->name, meta_add, clusters_add, *credits);
+
+ if (meta_add) {
+ ret = ocfs2_reserve_new_metadata_blocks(osb, meta_add,
+ &ctxt->meta_ac);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ }
+
+ if (clusters_add) {
+ ret = ocfs2_reserve_clusters(osb, clusters_add, &ctxt->data_ac);
+ if (ret)
+ mlog_errno(ret);
+ }
+out:
+ if (ret) {
+ if (ctxt->meta_ac) {
+ ocfs2_free_alloc_context(ctxt->meta_ac);
+ ctxt->meta_ac = NULL;
+ }
+
+ /*
+ * We cannot have an error and a non null ctxt->data_ac.
+ */
+ }
+
+ return ret;
+}
+
+static int __ocfs2_xattr_set_handle(struct inode *inode,
+ struct ocfs2_dinode *di,
+ struct ocfs2_xattr_info *xi,
+ struct ocfs2_xattr_search *xis,
+ struct ocfs2_xattr_search *xbs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
+{
+ int ret = 0, credits, old_found;
+
+ if (!xi->value) {
+ /* Remove existing extended attribute */
+ if (!xis->not_found)
+ ret = ocfs2_xattr_ibody_set(inode, xi, xis, ctxt);
+ else if (!xbs->not_found)
+ ret = ocfs2_xattr_block_set(inode, xi, xbs, ctxt);
+ } else {
+ /* We always try to set extended attribute into inode first*/
+ ret = ocfs2_xattr_ibody_set(inode, xi, xis, ctxt);
+ if (!ret && !xbs->not_found) {
+ /*
+ * If succeed and that extended attribute existing in
+ * external block, then we will remove it.
+ */
+ xi->value = NULL;
+ xi->value_len = 0;
+
+ old_found = xis->not_found;
+ xis->not_found = -ENODATA;
+ ret = ocfs2_calc_xattr_set_need(inode,
+ di,
+ xi,
+ xis,
+ xbs,
+ NULL,
+ NULL,
+ &credits);
+ xis->not_found = old_found;
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_extend_trans(ctxt->handle, credits +
+ ctxt->handle->h_buffer_credits);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ ret = ocfs2_xattr_block_set(inode, xi, xbs, ctxt);
+ } else if (ret == -ENOSPC) {
+ if (di->i_xattr_loc && !xbs->xattr_bh) {
+ ret = ocfs2_xattr_block_find(inode,
+ xi->name_index,
+ xi->name, xbs);
+ if (ret)
+ goto out;
+
+ old_found = xis->not_found;
+ xis->not_found = -ENODATA;
+ ret = ocfs2_calc_xattr_set_need(inode,
+ di,
+ xi,
+ xis,
+ xbs,
+ NULL,
+ NULL,
+ &credits);
+ xis->not_found = old_found;
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_extend_trans(ctxt->handle, credits +
+ ctxt->handle->h_buffer_credits);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ }
+ /*
+ * If no space in inode, we will set extended attribute
+ * into external block.
+ */
+ ret = ocfs2_xattr_block_set(inode, xi, xbs, ctxt);
+ if (ret)
+ goto out;
+ if (!xis->not_found) {
+ /*
+ * If succeed and that extended attribute
+ * existing in inode, we will remove it.
+ */
+ xi->value = NULL;
+ xi->value_len = 0;
+ xbs->not_found = -ENODATA;
+ ret = ocfs2_calc_xattr_set_need(inode,
+ di,
+ xi,
+ xis,
+ xbs,
+ NULL,
+ NULL,
+ &credits);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_extend_trans(ctxt->handle, credits +
+ ctxt->handle->h_buffer_credits);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+ ret = ocfs2_xattr_ibody_set(inode, xi,
+ xis, ctxt);
+ }
+ }
+ }
+
+ if (!ret) {
+ /* Update inode ctime. */
+ ret = ocfs2_journal_access(ctxt->handle, inode, xis->inode_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ inode->i_ctime = CURRENT_TIME;
+ di->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
+ di->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
+ ocfs2_journal_dirty(ctxt->handle, xis->inode_bh);
+ }
+out:
+ return ret;
+}
+
+/*
+ * This function only called duing creating inode
+ * for init security/acl xattrs of the new inode.
+ * All transanction credits have been reserved in mknod.
+ */
+int ocfs2_xattr_set_handle(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *di_bh,
+ int name_index,
+ const char *name,
+ const void *value,
+ size_t value_len,
+ int flags,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac)
+{
+ struct ocfs2_dinode *di;
+ int ret;
+
+ struct ocfs2_xattr_info xi = {
+ .name_index = name_index,
+ .name = name,
+ .value = value,
+ .value_len = value_len,
+ };
+
+ struct ocfs2_xattr_search xis = {
+ .not_found = -ENODATA,
+ };
+
+ struct ocfs2_xattr_search xbs = {
+ .not_found = -ENODATA,
+ };
+
+ struct ocfs2_xattr_set_ctxt ctxt = {
+ .handle = handle,
+ .meta_ac = meta_ac,
+ .data_ac = data_ac,
+ };
+
+ if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
+ return -EOPNOTSUPP;
+
+ /*
+ * In extreme situation, may need xattr bucket when
+ * block size is too small. And we have already reserved
+ * the credits for bucket in mknod.
+ */
+ if (inode->i_sb->s_blocksize == OCFS2_MIN_BLOCKSIZE) {
+ xbs.bucket = ocfs2_xattr_bucket_new(inode);
+ if (!xbs.bucket) {
+ mlog_errno(-ENOMEM);
+ return -ENOMEM;
+ }
+ }
+
+ xis.inode_bh = xbs.inode_bh = di_bh;
+ di = (struct ocfs2_dinode *)di_bh->b_data;
+
+ down_write(&OCFS2_I(inode)->ip_xattr_sem);
+
+ ret = ocfs2_xattr_ibody_find(inode, name_index, name, &xis);
+ if (ret)
+ goto cleanup;
+ if (xis.not_found) {
+ ret = ocfs2_xattr_block_find(inode, name_index, name, &xbs);
+ if (ret)
+ goto cleanup;
+ }
+
+ ret = __ocfs2_xattr_set_handle(inode, di, &xi, &xis, &xbs, &ctxt);
+
+cleanup:
+ up_write(&OCFS2_I(inode)->ip_xattr_sem);
+ brelse(xbs.xattr_bh);
+ ocfs2_xattr_bucket_free(xbs.bucket);
+
+ return ret;
+}
+
/*
* ocfs2_xattr_set()
*
@@ -1928,8 +2704,10 @@ int ocfs2_xattr_set(struct inode *inode,
{
struct buffer_head *di_bh = NULL;
struct ocfs2_dinode *di;
- int ret;
- u16 i, blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ int ret, credits;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct inode *tl_inode = osb->osb_tl_inode;
+ struct ocfs2_xattr_set_ctxt ctxt = { NULL, NULL, };
struct ocfs2_xattr_info xi = {
.name_index = name_index,
@@ -1949,10 +2727,20 @@ int ocfs2_xattr_set(struct inode *inode,
if (!ocfs2_supports_xattr(OCFS2_SB(inode->i_sb)))
return -EOPNOTSUPP;
+ /*
+ * Only xbs will be used on indexed trees. xis doesn't need a
+ * bucket.
+ */
+ xbs.bucket = ocfs2_xattr_bucket_new(inode);
+ if (!xbs.bucket) {
+ mlog_errno(-ENOMEM);
+ return -ENOMEM;
+ }
+
ret = ocfs2_inode_lock(inode, &di_bh, 1);
if (ret < 0) {
mlog_errno(ret);
- return ret;
+ goto cleanup_nolock;
}
xis.inode_bh = xbs.inode_bh = di_bh;
di = (struct ocfs2_dinode *)di_bh->b_data;
@@ -1984,55 +2772,53 @@ int ocfs2_xattr_set(struct inode *inode,
goto cleanup;
}
- if (!value) {
- /* Remove existing extended attribute */
- if (!xis.not_found)
- ret = ocfs2_xattr_ibody_set(inode, &xi, &xis);
- else if (!xbs.not_found)
- ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
- } else {
- /* We always try to set extended attribute into inode first*/
- ret = ocfs2_xattr_ibody_set(inode, &xi, &xis);
- if (!ret && !xbs.not_found) {
- /*
- * If succeed and that extended attribute existing in
- * external block, then we will remove it.
- */
- xi.value = NULL;
- xi.value_len = 0;
- ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
- } else if (ret == -ENOSPC) {
- if (di->i_xattr_loc && !xbs.xattr_bh) {
- ret = ocfs2_xattr_block_find(inode, name_index,
- name, &xbs);
- if (ret)
- goto cleanup;
- }
- /*
- * If no space in inode, we will set extended attribute
- * into external block.
- */
- ret = ocfs2_xattr_block_set(inode, &xi, &xbs);
- if (ret)
- goto cleanup;
- if (!xis.not_found) {
- /*
- * If succeed and that extended attribute
- * existing in inode, we will remove it.
- */
- xi.value = NULL;
- xi.value_len = 0;
- ret = ocfs2_xattr_ibody_set(inode, &xi, &xis);
- }
+
+ mutex_lock(&tl_inode->i_mutex);
+
+ if (ocfs2_truncate_log_needs_flush(osb)) {
+ ret = __ocfs2_flush_truncate_log(osb);
+ if (ret < 0) {
+ mutex_unlock(&tl_inode->i_mutex);
+ mlog_errno(ret);
+ goto cleanup;
}
}
+ mutex_unlock(&tl_inode->i_mutex);
+
+ ret = ocfs2_init_xattr_set_ctxt(inode, di, &xi, &xis,
+ &xbs, &ctxt, &credits);
+ if (ret) {
+ mlog_errno(ret);
+ goto cleanup;
+ }
+
+ /* we need to update inode's ctime field, so add credit for it. */
+ credits += OCFS2_INODE_UPDATE_CREDITS;
+ ctxt.handle = ocfs2_start_trans(osb, credits);
+ if (IS_ERR(ctxt.handle)) {
+ ret = PTR_ERR(ctxt.handle);
+ mlog_errno(ret);
+ goto cleanup;
+ }
+
+ ret = __ocfs2_xattr_set_handle(inode, di, &xi, &xis, &xbs, &ctxt);
+
+ ocfs2_commit_trans(osb, ctxt.handle);
+
+ if (ctxt.data_ac)
+ ocfs2_free_alloc_context(ctxt.data_ac);
+ if (ctxt.meta_ac)
+ ocfs2_free_alloc_context(ctxt.meta_ac);
+ if (ocfs2_dealloc_has_cluster(&ctxt.dealloc))
+ ocfs2_schedule_truncate_log_flush(osb, 1);
+ ocfs2_run_deallocs(osb, &ctxt.dealloc);
cleanup:
up_write(&OCFS2_I(inode)->ip_xattr_sem);
ocfs2_inode_unlock(inode, 1);
+cleanup_nolock:
brelse(di_bh);
brelse(xbs.xattr_bh);
- for (i = 0; i < blk_per_bucket; i++)
- brelse(xbs.bucket.bhs[i]);
+ ocfs2_xattr_bucket_free(xbs.bucket);
return ret;
}
@@ -2107,7 +2893,7 @@ typedef int (xattr_bucket_func)(struct inode *inode,
void *para);
static int ocfs2_find_xe_in_bucket(struct inode *inode,
- struct buffer_head *header_bh,
+ struct ocfs2_xattr_bucket *bucket,
int name_index,
const char *name,
u32 name_hash,
@@ -2115,11 +2901,9 @@ static int ocfs2_find_xe_in_bucket(struct inode *inode,
int *found)
{
int i, ret = 0, cmp = 1, block_off, new_offset;
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)header_bh->b_data;
+ struct ocfs2_xattr_header *xh = bucket_xh(bucket);
size_t name_len = strlen(name);
struct ocfs2_xattr_entry *xe = NULL;
- struct buffer_head *name_bh = NULL;
char *xe_name;
/*
@@ -2150,19 +2934,9 @@ static int ocfs2_find_xe_in_bucket(struct inode *inode,
break;
}
- ret = ocfs2_read_block(inode, header_bh->b_blocknr + block_off,
- &name_bh);
- if (ret) {
- mlog_errno(ret);
- break;
- }
- xe_name = name_bh->b_data + new_offset;
- cmp = memcmp(name, xe_name, name_len);
- brelse(name_bh);
- name_bh = NULL;
-
- if (cmp == 0) {
+ xe_name = bucket_block(bucket, block_off) + new_offset;
+ if (!memcmp(name, xe_name, name_len)) {
*xe_index = i;
*found = 1;
ret = 0;
@@ -2192,39 +2966,42 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
struct ocfs2_xattr_search *xs)
{
int ret, found = 0;
- struct buffer_head *bh = NULL;
- struct buffer_head *lower_bh = NULL;
struct ocfs2_xattr_header *xh = NULL;
struct ocfs2_xattr_entry *xe = NULL;
u16 index = 0;
u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
int low_bucket = 0, bucket, high_bucket;
+ struct ocfs2_xattr_bucket *search;
u32 last_hash;
- u64 blkno;
+ u64 blkno, lower_blkno = 0;
- ret = ocfs2_read_block(inode, p_blkno, &bh);
+ search = ocfs2_xattr_bucket_new(inode);
+ if (!search) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_read_xattr_bucket(search, p_blkno);
if (ret) {
mlog_errno(ret);
goto out;
}
- xh = (struct ocfs2_xattr_header *)bh->b_data;
+ xh = bucket_xh(search);
high_bucket = le16_to_cpu(xh->xh_num_buckets) - 1;
-
while (low_bucket <= high_bucket) {
- brelse(bh);
- bh = NULL;
+ ocfs2_xattr_bucket_relse(search);
+
bucket = (low_bucket + high_bucket) / 2;
-
blkno = p_blkno + bucket * blk_per_bucket;
-
- ret = ocfs2_read_block(inode, blkno, &bh);
+ ret = ocfs2_read_xattr_bucket(search, blkno);
if (ret) {
mlog_errno(ret);
goto out;
}
- xh = (struct ocfs2_xattr_header *)bh->b_data;
+ xh = bucket_xh(search);
xe = &xh->xh_entries[0];
if (name_hash < le32_to_cpu(xe->xe_name_hash)) {
high_bucket = bucket - 1;
@@ -2241,10 +3018,8 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
last_hash = le32_to_cpu(xe->xe_name_hash);
- /* record lower_bh which may be the insert place. */
- brelse(lower_bh);
- lower_bh = bh;
- bh = NULL;
+ /* record lower_blkno which may be the insert place. */
+ lower_blkno = blkno;
if (name_hash > le32_to_cpu(xe->xe_name_hash)) {
low_bucket = bucket + 1;
@@ -2252,7 +3027,7 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
}
/* the searched xattr should reside in this bucket if exists. */
- ret = ocfs2_find_xe_in_bucket(inode, lower_bh,
+ ret = ocfs2_find_xe_in_bucket(inode, search,
name_index, name, name_hash,
&index, &found);
if (ret) {
@@ -2267,46 +3042,29 @@ static int ocfs2_xattr_bucket_find(struct inode *inode,
* When the xattr's hash value is in the gap of 2 buckets, we will
* always set it to the previous bucket.
*/
- if (!lower_bh) {
- /*
- * We can't find any bucket whose first name_hash is less
- * than the find name_hash.
- */
- BUG_ON(bh->b_blocknr != p_blkno);
- lower_bh = bh;
- bh = NULL;
- }
- xs->bucket.bhs[0] = lower_bh;
- xs->bucket.xh = (struct ocfs2_xattr_header *)
- xs->bucket.bhs[0]->b_data;
- lower_bh = NULL;
+ if (!lower_blkno)
+ lower_blkno = p_blkno;
- xs->header = xs->bucket.xh;
- xs->base = xs->bucket.bhs[0]->b_data;
+ /* This should be in cache - we just read it during the search */
+ ret = ocfs2_read_xattr_bucket(xs->bucket, lower_blkno);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ xs->header = bucket_xh(xs->bucket);
+ xs->base = bucket_block(xs->bucket, 0);
xs->end = xs->base + inode->i_sb->s_blocksize;
if (found) {
- /*
- * If we have found the xattr enty, read all the blocks in
- * this bucket.
- */
- ret = ocfs2_read_blocks(inode, xs->bucket.bhs[0]->b_blocknr + 1,
- blk_per_bucket - 1, &xs->bucket.bhs[1],
- 0);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
xs->here = &xs->header->xh_entries[index];
mlog(0, "find xattr %s in bucket %llu, entry = %u\n", name,
- (unsigned long long)xs->bucket.bhs[0]->b_blocknr, index);
+ (unsigned long long)bucket_blkno(xs->bucket), index);
} else
ret = -ENODATA;
out:
- brelse(bh);
- brelse(lower_bh);
+ ocfs2_xattr_bucket_free(search);
return ret;
}
@@ -2357,53 +3115,50 @@ static int ocfs2_iterate_xattr_buckets(struct inode *inode,
xattr_bucket_func *func,
void *para)
{
- int i, j, ret = 0;
- int blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ int i, ret = 0;
u32 bpc = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb));
u32 num_buckets = clusters * bpc;
- struct ocfs2_xattr_bucket bucket;
+ struct ocfs2_xattr_bucket *bucket;
- memset(&bucket, 0, sizeof(bucket));
+ bucket = ocfs2_xattr_bucket_new(inode);
+ if (!bucket) {
+ mlog_errno(-ENOMEM);
+ return -ENOMEM;
+ }
mlog(0, "iterating xattr buckets in %u clusters starting from %llu\n",
clusters, (unsigned long long)blkno);
- for (i = 0; i < num_buckets; i++, blkno += blk_per_bucket) {
- ret = ocfs2_read_blocks(inode, blkno, blk_per_bucket,
- bucket.bhs, 0);
+ for (i = 0; i < num_buckets; i++, blkno += bucket->bu_blocks) {
+ ret = ocfs2_read_xattr_bucket(bucket, blkno);
if (ret) {
mlog_errno(ret);
- goto out;
+ break;
}
- bucket.xh = (struct ocfs2_xattr_header *)bucket.bhs[0]->b_data;
/*
* The real bucket num in this series of blocks is stored
* in the 1st bucket.
*/
if (i == 0)
- num_buckets = le16_to_cpu(bucket.xh->xh_num_buckets);
+ num_buckets = le16_to_cpu(bucket_xh(bucket)->xh_num_buckets);
mlog(0, "iterating xattr bucket %llu, first hash %u\n",
(unsigned long long)blkno,
- le32_to_cpu(bucket.xh->xh_entries[0].xe_name_hash));
+ le32_to_cpu(bucket_xh(bucket)->xh_entries[0].xe_name_hash));
if (func) {
- ret = func(inode, &bucket, para);
- if (ret) {
+ ret = func(inode, bucket, para);
+ if (ret)
mlog_errno(ret);
- break;
- }
+ /* Fall through to bucket_relse() */
}
- for (j = 0; j < blk_per_bucket; j++)
- brelse(bucket.bhs[j]);
- memset(&bucket, 0, sizeof(bucket));
+ ocfs2_xattr_bucket_relse(bucket);
+ if (ret)
+ break;
}
-out:
- for (j = 0; j < blk_per_bucket; j++)
- brelse(bucket.bhs[j]);
-
+ ocfs2_xattr_bucket_free(bucket);
return ret;
}
@@ -2441,21 +3196,21 @@ static int ocfs2_list_xattr_bucket(struct inode *inode,
int i, block_off, new_offset;
const char *prefix, *name;
- for (i = 0 ; i < le16_to_cpu(bucket->xh->xh_count); i++) {
- struct ocfs2_xattr_entry *entry = &bucket->xh->xh_entries[i];
+ for (i = 0 ; i < le16_to_cpu(bucket_xh(bucket)->xh_count); i++) {
+ struct ocfs2_xattr_entry *entry = &bucket_xh(bucket)->xh_entries[i];
type = ocfs2_xattr_get_type(entry);
prefix = ocfs2_xattr_prefix(type);
if (prefix) {
ret = ocfs2_xattr_bucket_get_name_value(inode,
- bucket->xh,
+ bucket_xh(bucket),
i,
&block_off,
&new_offset);
if (ret)
break;
- name = (const char *)bucket->bhs[block_off]->b_data +
+ name = (const char *)bucket_block(bucket, block_off) +
new_offset;
ret = ocfs2_xattr_list_entry(xl->buffer,
xl->buffer_size,
@@ -2540,32 +3295,34 @@ static void swap_xe(void *a, void *b, int size)
/*
* When the ocfs2_xattr_block is filled up, new bucket will be created
* and all the xattr entries will be moved to the new bucket.
+ * The header goes at the start of the bucket, and the names+values are
+ * filled from the end. This is why *target starts as the last buffer.
* Note: we need to sort the entries since they are not saved in order
* in the ocfs2_xattr_block.
*/
static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
struct buffer_head *xb_bh,
- struct buffer_head *xh_bh,
- struct buffer_head *data_bh)
+ struct ocfs2_xattr_bucket *bucket)
{
int i, blocksize = inode->i_sb->s_blocksize;
+ int blks = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
u16 offset, size, off_change;
struct ocfs2_xattr_entry *xe;
struct ocfs2_xattr_block *xb =
(struct ocfs2_xattr_block *)xb_bh->b_data;
struct ocfs2_xattr_header *xb_xh = &xb->xb_attrs.xb_header;
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)xh_bh->b_data;
+ struct ocfs2_xattr_header *xh = bucket_xh(bucket);
u16 count = le16_to_cpu(xb_xh->xh_count);
- char *target = xh_bh->b_data, *src = xb_bh->b_data;
+ char *src = xb_bh->b_data;
+ char *target = bucket_block(bucket, blks - 1);
mlog(0, "cp xattr from block %llu to bucket %llu\n",
(unsigned long long)xb_bh->b_blocknr,
- (unsigned long long)xh_bh->b_blocknr);
+ (unsigned long long)bucket_blkno(bucket));
+
+ for (i = 0; i < blks; i++)
+ memset(bucket_block(bucket, i), 0, blocksize);
- memset(xh_bh->b_data, 0, blocksize);
- if (data_bh)
- memset(data_bh->b_data, 0, blocksize);
/*
* Since the xe_name_offset is based on ocfs2_xattr_header,
* there is a offset change corresponding to the change of
@@ -2577,8 +3334,6 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
size = blocksize - offset;
/* copy all the names and values. */
- if (data_bh)
- target = data_bh->b_data;
memcpy(target + offset, src + offset, size);
/* Init new header now. */
@@ -2588,7 +3343,7 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
xh->xh_free_start = cpu_to_le16(OCFS2_XATTR_BUCKET_SIZE - size);
/* copy all the entries. */
- target = xh_bh->b_data;
+ target = bucket_block(bucket, 0);
offset = offsetof(struct ocfs2_xattr_header, xh_entries);
size = count * sizeof(struct ocfs2_xattr_entry);
memcpy(target + offset, (char *)xb_xh + offset, size);
@@ -2614,73 +3369,47 @@ static void ocfs2_cp_xattr_block_to_bucket(struct inode *inode,
* While if the entry is in index b-tree, "bucket" indicates the
* real place of the xattr.
*/
-static int ocfs2_xattr_update_xattr_search(struct inode *inode,
- struct ocfs2_xattr_search *xs,
- struct buffer_head *old_bh,
- struct buffer_head *new_bh)
+static void ocfs2_xattr_update_xattr_search(struct inode *inode,
+ struct ocfs2_xattr_search *xs,
+ struct buffer_head *old_bh)
{
- int ret = 0;
char *buf = old_bh->b_data;
struct ocfs2_xattr_block *old_xb = (struct ocfs2_xattr_block *)buf;
struct ocfs2_xattr_header *old_xh = &old_xb->xb_attrs.xb_header;
- int i, blocksize = inode->i_sb->s_blocksize;
- u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ int i;
- xs->bucket.bhs[0] = new_bh;
- get_bh(new_bh);
- xs->bucket.xh = (struct ocfs2_xattr_header *)xs->bucket.bhs[0]->b_data;
- xs->header = xs->bucket.xh;
-
- xs->base = new_bh->b_data;
+ xs->header = bucket_xh(xs->bucket);
+ xs->base = bucket_block(xs->bucket, 0);
xs->end = xs->base + inode->i_sb->s_blocksize;
- if (!xs->not_found) {
- if (OCFS2_XATTR_BUCKET_SIZE != blocksize) {
- ret = ocfs2_read_blocks(inode,
- xs->bucket.bhs[0]->b_blocknr + 1,
- blk_per_bucket - 1, &xs->bucket.bhs[1],
- 0);
- if (ret) {
- mlog_errno(ret);
- return ret;
- }
+ if (xs->not_found)
+ return;
- }
- i = xs->here - old_xh->xh_entries;
- xs->here = &xs->header->xh_entries[i];
- }
-
- return ret;
+ i = xs->here - old_xh->xh_entries;
+ xs->here = &xs->header->xh_entries[i];
}
static int ocfs2_xattr_create_index_block(struct inode *inode,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
- int ret, credits = OCFS2_SUBALLOC_ALLOC;
+ int ret;
u32 bit_off, len;
u64 blkno;
- handle_t *handle;
+ handle_t *handle = ctxt->handle;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_inode_info *oi = OCFS2_I(inode);
- struct ocfs2_alloc_context *data_ac;
- struct buffer_head *xh_bh = NULL, *data_bh = NULL;
struct buffer_head *xb_bh = xs->xattr_bh;
struct ocfs2_xattr_block *xb =
(struct ocfs2_xattr_block *)xb_bh->b_data;
struct ocfs2_xattr_tree_root *xr;
u16 xb_flags = le16_to_cpu(xb->xb_flags);
- u16 bpb = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
mlog(0, "create xattr index block for %llu\n",
(unsigned long long)xb_bh->b_blocknr);
BUG_ON(xb_flags & OCFS2_XATTR_INDEXED);
-
- ret = ocfs2_reserve_clusters(osb, 1, &data_ac);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ BUG_ON(!xs->bucket);
/*
* XXX:
@@ -2689,29 +3418,18 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
*/
down_write(&oi->ip_alloc_sem);
- /*
- * 3 more credits, one for xattr block update, one for the 1st block
- * of the new xattr bucket and one for the value/data.
- */
- credits += 3;
- handle = ocfs2_start_trans(osb, credits);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- mlog_errno(ret);
- goto out_sem;
- }
-
- ret = ocfs2_journal_access(handle, inode, xb_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_xb(handle, inode, xb_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
- ret = ocfs2_claim_clusters(osb, handle, data_ac, 1, &bit_off, &len);
+ ret = __ocfs2_claim_clusters(osb, handle, ctxt->data_ac,
+ 1, 1, &bit_off, &len);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
/*
@@ -2724,52 +3442,24 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
mlog(0, "allocate 1 cluster from %llu to xattr block\n",
(unsigned long long)blkno);
- xh_bh = sb_getblk(inode->i_sb, blkno);
- if (!xh_bh) {
- ret = -EIO;
- mlog_errno(ret);
- goto out_commit;
- }
-
- ocfs2_set_new_buffer_uptodate(inode, xh_bh);
-
- ret = ocfs2_journal_access(handle, inode, xh_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
+ ret = ocfs2_init_xattr_bucket(xs->bucket, blkno);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
- if (bpb > 1) {
- data_bh = sb_getblk(inode->i_sb, blkno + bpb - 1);
- if (!data_bh) {
- ret = -EIO;
- mlog_errno(ret);
- goto out_commit;
- }
-
- ocfs2_set_new_buffer_uptodate(inode, data_bh);
-
- ret = ocfs2_journal_access(handle, inode, data_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
- }
-
- ocfs2_cp_xattr_block_to_bucket(inode, xb_bh, xh_bh, data_bh);
-
- ocfs2_journal_dirty(handle, xh_bh);
- if (data_bh)
- ocfs2_journal_dirty(handle, data_bh);
-
- ret = ocfs2_xattr_update_xattr_search(inode, xs, xb_bh, xh_bh);
+ ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
+ OCFS2_JOURNAL_ACCESS_CREATE);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ goto out;
}
+ ocfs2_cp_xattr_block_to_bucket(inode, xb_bh, xs->bucket);
+ ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
+
+ ocfs2_xattr_update_xattr_search(inode, xs, xb_bh);
+
/* Change from ocfs2_xattr_header to ocfs2_xattr_tree_root */
memset(&xb->xb_attrs, 0, inode->i_sb->s_blocksize -
offsetof(struct ocfs2_xattr_block, xb_attrs));
@@ -2787,24 +3477,10 @@ static int ocfs2_xattr_create_index_block(struct inode *inode,
xb->xb_flags = cpu_to_le16(xb_flags | OCFS2_XATTR_INDEXED);
- ret = ocfs2_journal_dirty(handle, xb_bh);
- if (ret) {
- mlog_errno(ret);
- goto out_commit;
- }
-
-out_commit:
- ocfs2_commit_trans(osb, handle);
-
-out_sem:
- up_write(&oi->ip_alloc_sem);
+ ocfs2_journal_dirty(handle, xb_bh);
out:
- if (data_ac)
- ocfs2_free_alloc_context(data_ac);
-
- brelse(xh_bh);
- brelse(data_bh);
+ up_write(&oi->ip_alloc_sem);
return ret;
}
@@ -2829,29 +3505,18 @@ static int cmp_xe_offset(const void *a, const void *b)
* so that we can spare some space for insertion.
*/
static int ocfs2_defrag_xattr_bucket(struct inode *inode,
+ handle_t *handle,
struct ocfs2_xattr_bucket *bucket)
{
int ret, i;
size_t end, offset, len, value_len;
struct ocfs2_xattr_header *xh;
char *entries, *buf, *bucket_buf = NULL;
- u64 blkno = bucket->bhs[0]->b_blocknr;
- u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+ u64 blkno = bucket_blkno(bucket);
u16 xh_free_start;
size_t blocksize = inode->i_sb->s_blocksize;
- handle_t *handle;
- struct buffer_head **bhs;
struct ocfs2_xattr_entry *xe;
- bhs = kzalloc(sizeof(struct buffer_head *) * blk_per_bucket,
- GFP_NOFS);
- if (!bhs)
- return -ENOMEM;
-
- ret = ocfs2_read_blocks(inode, blkno, blk_per_bucket, bhs, 0);
- if (ret)
- goto out;
-
/*
* In order to make the operation more efficient and generic,
* we copy all the blocks into a contiguous memory and do the
@@ -2865,26 +3530,16 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
}
buf = bucket_buf;
- for (i = 0; i < blk_per_bucket; i++, buf += blocksize)
- memcpy(buf, bhs[i]->b_data, blocksize);
+ for (i = 0; i < bucket->bu_blocks; i++, buf += blocksize)
+ memcpy(buf, bucket_block(bucket, i), blocksize);
- handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)), blk_per_bucket);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- handle = NULL;
+ ret = ocfs2_xattr_bucket_journal_access(handle, bucket,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret < 0) {
mlog_errno(ret);
goto out;
}
- for (i = 0; i < blk_per_bucket; i++) {
- ret = ocfs2_journal_access(handle, inode, bhs[i],
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret < 0) {
- mlog_errno(ret);
- goto commit;
- }
- }
-
xh = (struct ocfs2_xattr_header *)bucket_buf;
entries = (char *)xh->xh_entries;
xh_free_start = le16_to_cpu(xh->xh_free_start);
@@ -2940,7 +3595,7 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
"bucket %llu\n", (unsigned long long)blkno);
if (xh_free_start == end)
- goto commit;
+ goto out;
memset(bucket_buf + xh_free_start, 0, end - xh_free_start);
xh->xh_free_start = cpu_to_le16(end);
@@ -2951,169 +3606,94 @@ static int ocfs2_defrag_xattr_bucket(struct inode *inode,
cmp_xe, swap_xe);
buf = bucket_buf;
- for (i = 0; i < blk_per_bucket; i++, buf += blocksize) {
- memcpy(bhs[i]->b_data, buf, blocksize);
- ocfs2_journal_dirty(handle, bhs[i]);
- }
+ for (i = 0; i < bucket->bu_blocks; i++, buf += blocksize)
+ memcpy(bucket_block(bucket, i), buf, blocksize);
+ ocfs2_xattr_bucket_journal_dirty(handle, bucket);
-commit:
- ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
out:
-
- if (bhs) {
- for (i = 0; i < blk_per_bucket; i++)
- brelse(bhs[i]);
- }
- kfree(bhs);
-
kfree(bucket_buf);
return ret;
}
/*
- * Move half nums of the xattr bucket in the previous cluster to this new
- * cluster. We only touch the last cluster of the previous extend record.
+ * prev_blkno points to the start of an existing extent. new_blkno
+ * points to a newly allocated extent. Because we know each of our
+ * clusters contains more than bucket, we can easily split one cluster
+ * at a bucket boundary. So we take the last cluster of the existing
+ * extent and split it down the middle. We move the last half of the
+ * buckets in the last cluster of the existing extent over to the new
+ * extent.
*
- * first_bh is the first buffer_head of a series of bucket in the same
- * extent rec and header_bh is the header of one bucket in this cluster.
- * They will be updated if we move the data header_bh contains to the new
- * cluster. first_hash will be set as the 1st xe's name_hash of the new cluster.
+ * first_bh is the buffer at prev_blkno so we can update the existing
+ * extent's bucket count. header_bh is the bucket were we were hoping
+ * to insert our xattr. If the bucket move places the target in the new
+ * extent, we'll update first_bh and header_bh after modifying the old
+ * extent.
+ *
+ * first_hash will be set as the 1st xe's name_hash in the new extent.
*/
static int ocfs2_mv_xattr_bucket_cross_cluster(struct inode *inode,
handle_t *handle,
- struct buffer_head **first_bh,
- struct buffer_head **header_bh,
+ struct ocfs2_xattr_bucket *first,
+ struct ocfs2_xattr_bucket *target,
u64 new_blkno,
- u64 prev_blkno,
u32 num_clusters,
u32 *first_hash)
{
- int i, ret, credits;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
- int num_buckets = ocfs2_xattr_buckets_per_cluster(osb);
- int blocksize = inode->i_sb->s_blocksize;
- struct buffer_head *old_bh, *new_bh, *prev_bh, *new_first_bh = NULL;
- struct ocfs2_xattr_header *new_xh;
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)((*first_bh)->b_data);
+ int ret;
+ struct super_block *sb = inode->i_sb;
+ int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(sb);
+ int num_buckets = ocfs2_xattr_buckets_per_cluster(OCFS2_SB(sb));
+ int to_move = num_buckets / 2;
+ u64 src_blkno;
+ u64 last_cluster_blkno = bucket_blkno(first) +
+ ((num_clusters - 1) * ocfs2_clusters_to_blocks(sb, 1));
- BUG_ON(le16_to_cpu(xh->xh_num_buckets) < num_buckets);
- BUG_ON(OCFS2_XATTR_BUCKET_SIZE == osb->s_clustersize);
-
- prev_bh = *first_bh;
- get_bh(prev_bh);
- xh = (struct ocfs2_xattr_header *)prev_bh->b_data;
-
- prev_blkno += (num_clusters - 1) * bpc + bpc / 2;
+ BUG_ON(le16_to_cpu(bucket_xh(first)->xh_num_buckets) < num_buckets);
+ BUG_ON(OCFS2_XATTR_BUCKET_SIZE == OCFS2_SB(sb)->s_clustersize);
mlog(0, "move half of xattrs in cluster %llu to %llu\n",
- (unsigned long long)prev_blkno, (unsigned long long)new_blkno);
+ (unsigned long long)last_cluster_blkno, (unsigned long long)new_blkno);
+
+ ret = ocfs2_mv_xattr_buckets(inode, handle, bucket_blkno(first),
+ last_cluster_blkno, new_blkno,
+ to_move, first_hash);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ /* This is the first bucket that got moved */
+ src_blkno = last_cluster_blkno + (to_move * blks_per_bucket);
/*
- * We need to update the 1st half of the new cluster and
- * 1 more for the update of the 1st bucket of the previous
- * extent record.
+ * If the target bucket was part of the moved buckets, we need to
+ * update first and target.
*/
- credits = bpc / 2 + 1;
- ret = ocfs2_extend_trans(handle, credits);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ if (bucket_blkno(target) >= src_blkno) {
+ /* Find the block for the new target bucket */
+ src_blkno = new_blkno +
+ (bucket_blkno(target) - src_blkno);
- ret = ocfs2_journal_access(handle, inode, prev_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ ocfs2_xattr_bucket_relse(first);
+ ocfs2_xattr_bucket_relse(target);
- for (i = 0; i < bpc / 2; i++, prev_blkno++, new_blkno++) {
- old_bh = new_bh = NULL;
- new_bh = sb_getblk(inode->i_sb, new_blkno);
- if (!new_bh) {
- ret = -EIO;
+ /*
+ * These shouldn't fail - the buffers are in the
+ * journal from ocfs2_cp_xattr_bucket().
+ */
+ ret = ocfs2_read_xattr_bucket(first, new_blkno);
+ if (ret) {
mlog_errno(ret);
goto out;
}
-
- ocfs2_set_new_buffer_uptodate(inode, new_bh);
-
- ret = ocfs2_journal_access(handle, inode, new_bh,
- OCFS2_JOURNAL_ACCESS_CREATE);
- if (ret < 0) {
+ ret = ocfs2_read_xattr_bucket(target, src_blkno);
+ if (ret)
mlog_errno(ret);
- brelse(new_bh);
- goto out;
- }
- ret = ocfs2_read_block(inode, prev_blkno, &old_bh);
- if (ret < 0) {
- mlog_errno(ret);
- brelse(new_bh);
- goto out;
- }
-
- memcpy(new_bh->b_data, old_bh->b_data, blocksize);
-
- if (i == 0) {
- new_xh = (struct ocfs2_xattr_header *)new_bh->b_data;
- new_xh->xh_num_buckets = cpu_to_le16(num_buckets / 2);
-
- if (first_hash)
- *first_hash = le32_to_cpu(
- new_xh->xh_entries[0].xe_name_hash);
- new_first_bh = new_bh;
- get_bh(new_first_bh);
- }
-
- ocfs2_journal_dirty(handle, new_bh);
-
- if (*header_bh == old_bh) {
- brelse(*header_bh);
- *header_bh = new_bh;
- get_bh(*header_bh);
-
- brelse(*first_bh);
- *first_bh = new_first_bh;
- get_bh(*first_bh);
- }
- brelse(new_bh);
- brelse(old_bh);
}
- le16_add_cpu(&xh->xh_num_buckets, -(num_buckets / 2));
-
- ocfs2_journal_dirty(handle, prev_bh);
out:
- brelse(prev_bh);
- brelse(new_first_bh);
- return ret;
-}
-
-static int ocfs2_read_xattr_bucket(struct inode *inode,
- u64 blkno,
- struct buffer_head **bhs,
- int new)
-{
- int ret = 0;
- u16 i, blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
-
- if (!new)
- return ocfs2_read_blocks(inode, blkno,
- blk_per_bucket, bhs, 0);
-
- for (i = 0; i < blk_per_bucket; i++) {
- bhs[i] = sb_getblk(inode->i_sb, blkno + i);
- if (bhs[i] == NULL) {
- ret = -EIO;
- mlog_errno(ret);
- break;
- }
- ocfs2_set_new_buffer_uptodate(inode, bhs[i]);
- }
-
return ret;
}
@@ -3178,8 +3758,7 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
{
int ret, i;
int count, start, len, name_value_len = 0, xe_len, name_offset = 0;
- u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- struct buffer_head **s_bhs, **t_bhs = NULL;
+ struct ocfs2_xattr_bucket *s_bucket = NULL, *t_bucket = NULL;
struct ocfs2_xattr_header *xh;
struct ocfs2_xattr_entry *xe;
int blocksize = inode->i_sb->s_blocksize;
@@ -3187,47 +3766,52 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
mlog(0, "move some of xattrs from bucket %llu to %llu\n",
(unsigned long long)blk, (unsigned long long)new_blk);
- s_bhs = kcalloc(blk_per_bucket, sizeof(struct buffer_head *), GFP_NOFS);
- if (!s_bhs)
- return -ENOMEM;
-
- ret = ocfs2_read_xattr_bucket(inode, blk, s_bhs, 0);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_journal_access(handle, inode, s_bhs[0],
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
-
- t_bhs = kcalloc(blk_per_bucket, sizeof(struct buffer_head *), GFP_NOFS);
- if (!t_bhs) {
+ s_bucket = ocfs2_xattr_bucket_new(inode);
+ t_bucket = ocfs2_xattr_bucket_new(inode);
+ if (!s_bucket || !t_bucket) {
ret = -ENOMEM;
+ mlog_errno(ret);
goto out;
}
- ret = ocfs2_read_xattr_bucket(inode, new_blk, t_bhs, new_bucket_head);
+ ret = ocfs2_read_xattr_bucket(s_bucket, blk);
if (ret) {
mlog_errno(ret);
goto out;
}
- for (i = 0; i < blk_per_bucket; i++) {
- ret = ocfs2_journal_access(handle, inode, t_bhs[i],
- new_bucket_head ?
- OCFS2_JOURNAL_ACCESS_CREATE :
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ ret = ocfs2_xattr_bucket_journal_access(handle, s_bucket,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
}
- xh = (struct ocfs2_xattr_header *)s_bhs[0]->b_data;
+ /*
+ * Even if !new_bucket_head, we're overwriting t_bucket. Thus,
+ * there's no need to read it.
+ */
+ ret = ocfs2_init_xattr_bucket(t_bucket, new_blk);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ /*
+ * Hey, if we're overwriting t_bucket, what difference does
+ * ACCESS_CREATE vs ACCESS_WRITE make? See the comment in the
+ * same part of ocfs2_cp_xattr_bucket().
+ */
+ ret = ocfs2_xattr_bucket_journal_access(handle, t_bucket,
+ new_bucket_head ?
+ OCFS2_JOURNAL_ACCESS_CREATE :
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
+
+ xh = bucket_xh(s_bucket);
count = le16_to_cpu(xh->xh_count);
start = ocfs2_xattr_find_divide_pos(xh);
@@ -3239,10 +3823,10 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
* The hash value is set as one larger than
* that of the last entry in the previous bucket.
*/
- for (i = 0; i < blk_per_bucket; i++)
- memset(t_bhs[i]->b_data, 0, blocksize);
+ for (i = 0; i < t_bucket->bu_blocks; i++)
+ memset(bucket_block(t_bucket, i), 0, blocksize);
- xh = (struct ocfs2_xattr_header *)t_bhs[0]->b_data;
+ xh = bucket_xh(t_bucket);
xh->xh_free_start = cpu_to_le16(blocksize);
xh->xh_entries[0].xe_name_hash = xe->xe_name_hash;
le32_add_cpu(&xh->xh_entries[0].xe_name_hash, 1);
@@ -3251,11 +3835,10 @@ static int ocfs2_divide_xattr_bucket(struct inode *inode,
}
/* copy the whole bucket to the new first. */
- for (i = 0; i < blk_per_bucket; i++)
- memcpy(t_bhs[i]->b_data, s_bhs[i]->b_data, blocksize);
+ ocfs2_xattr_bucket_copy_data(t_bucket, s_bucket);
/* update the new bucket. */
- xh = (struct ocfs2_xattr_header *)t_bhs[0]->b_data;
+ xh = bucket_xh(t_bucket);
/*
* Calculate the total name/value len and xh_free_start for
@@ -3319,11 +3902,7 @@ set_num_buckets:
else
xh->xh_num_buckets = 0;
- for (i = 0; i < blk_per_bucket; i++) {
- ocfs2_journal_dirty(handle, t_bhs[i]);
- if (ret)
- mlog_errno(ret);
- }
+ ocfs2_xattr_bucket_journal_dirty(handle, t_bucket);
/* store the first_hash of the new bucket. */
if (first_hash)
@@ -3337,29 +3916,18 @@ set_num_buckets:
if (start == count)
goto out;
- xh = (struct ocfs2_xattr_header *)s_bhs[0]->b_data;
+ xh = bucket_xh(s_bucket);
memset(&xh->xh_entries[start], 0,
sizeof(struct ocfs2_xattr_entry) * (count - start));
xh->xh_count = cpu_to_le16(start);
xh->xh_free_start = cpu_to_le16(name_offset);
xh->xh_name_value_len = cpu_to_le16(name_value_len);
- ocfs2_journal_dirty(handle, s_bhs[0]);
- if (ret)
- mlog_errno(ret);
+ ocfs2_xattr_bucket_journal_dirty(handle, s_bucket);
out:
- if (s_bhs) {
- for (i = 0; i < blk_per_bucket; i++)
- brelse(s_bhs[i]);
- }
- kfree(s_bhs);
-
- if (t_bhs) {
- for (i = 0; i < blk_per_bucket; i++)
- brelse(t_bhs[i]);
- }
- kfree(t_bhs);
+ ocfs2_xattr_bucket_free(s_bucket);
+ ocfs2_xattr_bucket_free(t_bucket);
return ret;
}
@@ -3376,10 +3944,8 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
u64 t_blkno,
int t_is_new)
{
- int ret, i;
- int blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- int blocksize = inode->i_sb->s_blocksize;
- struct buffer_head **s_bhs, **t_bhs = NULL;
+ int ret;
+ struct ocfs2_xattr_bucket *s_bucket = NULL, *t_bucket = NULL;
BUG_ON(s_blkno == t_blkno);
@@ -3387,92 +3953,115 @@ static int ocfs2_cp_xattr_bucket(struct inode *inode,
(unsigned long long)s_blkno, (unsigned long long)t_blkno,
t_is_new);
- s_bhs = kzalloc(sizeof(struct buffer_head *) * blk_per_bucket,
- GFP_NOFS);
- if (!s_bhs)
- return -ENOMEM;
-
- ret = ocfs2_read_xattr_bucket(inode, s_blkno, s_bhs, 0);
- if (ret)
- goto out;
-
- t_bhs = kzalloc(sizeof(struct buffer_head *) * blk_per_bucket,
- GFP_NOFS);
- if (!t_bhs) {
+ s_bucket = ocfs2_xattr_bucket_new(inode);
+ t_bucket = ocfs2_xattr_bucket_new(inode);
+ if (!s_bucket || !t_bucket) {
ret = -ENOMEM;
+ mlog_errno(ret);
goto out;
}
- ret = ocfs2_read_xattr_bucket(inode, t_blkno, t_bhs, t_is_new);
+ ret = ocfs2_read_xattr_bucket(s_bucket, s_blkno);
if (ret)
goto out;
- for (i = 0; i < blk_per_bucket; i++) {
- ret = ocfs2_journal_access(handle, inode, t_bhs[i],
- t_is_new ?
- OCFS2_JOURNAL_ACCESS_CREATE :
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret)
- goto out;
- }
+ /*
+ * Even if !t_is_new, we're overwriting t_bucket. Thus,
+ * there's no need to read it.
+ */
+ ret = ocfs2_init_xattr_bucket(t_bucket, t_blkno);
+ if (ret)
+ goto out;
- for (i = 0; i < blk_per_bucket; i++) {
- memcpy(t_bhs[i]->b_data, s_bhs[i]->b_data, blocksize);
- ocfs2_journal_dirty(handle, t_bhs[i]);
- }
+ /*
+ * Hey, if we're overwriting t_bucket, what difference does
+ * ACCESS_CREATE vs ACCESS_WRITE make? Well, if we allocated a new
+ * cluster to fill, we came here from
+ * ocfs2_mv_xattr_buckets(), and it is really new -
+ * ACCESS_CREATE is required. But we also might have moved data
+ * out of t_bucket before extending back into it.
+ * ocfs2_add_new_xattr_bucket() can do this - its call to
+ * ocfs2_add_new_xattr_cluster() may have created a new extent
+ * and copied out the end of the old extent. Then it re-extends
+ * the old extent back to create space for new xattrs. That's
+ * how we get here, and the bucket isn't really new.
+ */
+ ret = ocfs2_xattr_bucket_journal_access(handle, t_bucket,
+ t_is_new ?
+ OCFS2_JOURNAL_ACCESS_CREATE :
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret)
+ goto out;
+
+ ocfs2_xattr_bucket_copy_data(t_bucket, s_bucket);
+ ocfs2_xattr_bucket_journal_dirty(handle, t_bucket);
out:
- if (s_bhs) {
- for (i = 0; i < blk_per_bucket; i++)
- brelse(s_bhs[i]);
- }
- kfree(s_bhs);
-
- if (t_bhs) {
- for (i = 0; i < blk_per_bucket; i++)
- brelse(t_bhs[i]);
- }
- kfree(t_bhs);
+ ocfs2_xattr_bucket_free(t_bucket);
+ ocfs2_xattr_bucket_free(s_bucket);
return ret;
}
/*
- * Copy one xattr cluster from src_blk to to_blk.
- * The to_blk will become the first bucket header of the cluster, so its
- * xh_num_buckets will be initialized as the bucket num in the cluster.
+ * src_blk points to the start of an existing extent. last_blk points to
+ * last cluster in that extent. to_blk points to a newly allocated
+ * extent. We copy the buckets from the cluster at last_blk to the new
+ * extent. If start_bucket is non-zero, we skip that many buckets before
+ * we start copying. The new extent's xh_num_buckets gets set to the
+ * number of buckets we copied. The old extent's xh_num_buckets shrinks
+ * by the same amount.
*/
-static int ocfs2_cp_xattr_cluster(struct inode *inode,
- handle_t *handle,
- struct buffer_head *first_bh,
- u64 src_blk,
- u64 to_blk,
+static int ocfs2_mv_xattr_buckets(struct inode *inode, handle_t *handle,
+ u64 src_blk, u64 last_blk, u64 to_blk,
+ unsigned int start_bucket,
u32 *first_hash)
{
int i, ret, credits;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
+ int blks_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
int num_buckets = ocfs2_xattr_buckets_per_cluster(osb);
- struct buffer_head *bh = NULL;
- struct ocfs2_xattr_header *xh;
- u64 to_blk_start = to_blk;
+ struct ocfs2_xattr_bucket *old_first, *new_first;
- mlog(0, "cp xattrs from cluster %llu to %llu\n",
- (unsigned long long)src_blk, (unsigned long long)to_blk);
+ mlog(0, "mv xattrs from cluster %llu to %llu\n",
+ (unsigned long long)last_blk, (unsigned long long)to_blk);
+
+ BUG_ON(start_bucket >= num_buckets);
+ if (start_bucket) {
+ num_buckets -= start_bucket;
+ last_blk += (start_bucket * blks_per_bucket);
+ }
+
+ /* The first bucket of the original extent */
+ old_first = ocfs2_xattr_bucket_new(inode);
+ /* The first bucket of the new extent */
+ new_first = ocfs2_xattr_bucket_new(inode);
+ if (!old_first || !new_first) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_read_xattr_bucket(old_first, src_blk);
+ if (ret) {
+ mlog_errno(ret);
+ goto out;
+ }
/*
- * We need to update the new cluster and 1 more for the update of
- * the 1st bucket of the previous extent rec.
+ * We need to update the first bucket of the old extent and all
+ * the buckets going to the new extent.
*/
- credits = bpc + 1;
+ credits = ((num_buckets + 1) * blks_per_bucket) +
+ handle->h_buffer_credits;
ret = ocfs2_extend_trans(handle, credits);
if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode, first_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_xattr_bucket_journal_access(handle, old_first,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
@@ -3480,45 +4069,45 @@ static int ocfs2_cp_xattr_cluster(struct inode *inode,
for (i = 0; i < num_buckets; i++) {
ret = ocfs2_cp_xattr_bucket(inode, handle,
- src_blk, to_blk, 1);
+ last_blk + (i * blks_per_bucket),
+ to_blk + (i * blks_per_bucket),
+ 1);
if (ret) {
mlog_errno(ret);
goto out;
}
-
- src_blk += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- to_blk += ocfs2_blocks_per_xattr_bucket(inode->i_sb);
}
- /* update the old bucket header. */
- xh = (struct ocfs2_xattr_header *)first_bh->b_data;
- le16_add_cpu(&xh->xh_num_buckets, -num_buckets);
-
- ocfs2_journal_dirty(handle, first_bh);
-
- /* update the new bucket header. */
- ret = ocfs2_read_block(inode, to_blk_start, &bh);
- if (ret < 0) {
+ /*
+ * Get the new bucket ready before we dirty anything
+ * (This actually shouldn't fail, because we already dirtied
+ * it once in ocfs2_cp_xattr_bucket()).
+ */
+ ret = ocfs2_read_xattr_bucket(new_first, to_blk);
+ if (ret) {
mlog_errno(ret);
goto out;
}
-
- ret = ocfs2_journal_access(handle, inode, bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_xattr_bucket_journal_access(handle, new_first,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
}
- xh = (struct ocfs2_xattr_header *)bh->b_data;
- xh->xh_num_buckets = cpu_to_le16(num_buckets);
+ /* Now update the headers */
+ le16_add_cpu(&bucket_xh(old_first)->xh_num_buckets, -num_buckets);
+ ocfs2_xattr_bucket_journal_dirty(handle, old_first);
- ocfs2_journal_dirty(handle, bh);
+ bucket_xh(new_first)->xh_num_buckets = cpu_to_le16(num_buckets);
+ ocfs2_xattr_bucket_journal_dirty(handle, new_first);
if (first_hash)
- *first_hash = le32_to_cpu(xh->xh_entries[0].xe_name_hash);
+ *first_hash = le32_to_cpu(bucket_xh(new_first)->xh_entries[0].xe_name_hash);
+
out:
- brelse(bh);
+ ocfs2_xattr_bucket_free(new_first);
+ ocfs2_xattr_bucket_free(old_first);
return ret;
}
@@ -3534,7 +4123,7 @@ static int ocfs2_divide_xattr_cluster(struct inode *inode,
u32 *first_hash)
{
u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- int ret, credits = 2 * blk_per_bucket;
+ int ret, credits = 2 * blk_per_bucket + handle->h_buffer_credits;
BUG_ON(OCFS2_XATTR_BUCKET_SIZE < OCFS2_SB(inode->i_sb)->s_clustersize);
@@ -3577,43 +4166,49 @@ static int ocfs2_divide_xattr_cluster(struct inode *inode,
*/
static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
handle_t *handle,
- struct buffer_head **first_bh,
- struct buffer_head **header_bh,
+ struct ocfs2_xattr_bucket *first,
+ struct ocfs2_xattr_bucket *target,
u64 new_blk,
- u64 prev_blk,
u32 prev_clusters,
u32 *v_start,
int *extend)
{
- int ret = 0;
- int bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
+ int ret;
mlog(0, "adjust xattrs from cluster %llu len %u to %llu\n",
- (unsigned long long)prev_blk, prev_clusters,
+ (unsigned long long)bucket_blkno(first), prev_clusters,
(unsigned long long)new_blk);
- if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1)
+ if (ocfs2_xattr_buckets_per_cluster(OCFS2_SB(inode->i_sb)) > 1) {
ret = ocfs2_mv_xattr_bucket_cross_cluster(inode,
handle,
- first_bh,
- header_bh,
+ first, target,
new_blk,
- prev_blk,
prev_clusters,
v_start);
- else {
- u64 last_blk = prev_blk + bpc * (prev_clusters - 1);
+ if (ret)
+ mlog_errno(ret);
+ } else {
+ /* The start of the last cluster in the first extent */
+ u64 last_blk = bucket_blkno(first) +
+ ((prev_clusters - 1) *
+ ocfs2_clusters_to_blocks(inode->i_sb, 1));
- if (prev_clusters > 1 && (*header_bh)->b_blocknr != last_blk)
- ret = ocfs2_cp_xattr_cluster(inode, handle, *first_bh,
- last_blk, new_blk,
+ if (prev_clusters > 1 && bucket_blkno(target) != last_blk) {
+ ret = ocfs2_mv_xattr_buckets(inode, handle,
+ bucket_blkno(first),
+ last_blk, new_blk, 0,
v_start);
- else {
+ if (ret)
+ mlog_errno(ret);
+ } else {
ret = ocfs2_divide_xattr_cluster(inode, handle,
last_blk, new_blk,
v_start);
+ if (ret)
+ mlog_errno(ret);
- if ((*header_bh)->b_blocknr == last_blk && extend)
+ if ((bucket_blkno(target) == last_blk) && extend)
*extend = 0;
}
}
@@ -3639,56 +4234,37 @@ static int ocfs2_adjust_xattr_cross_cluster(struct inode *inode,
*/
static int ocfs2_add_new_xattr_cluster(struct inode *inode,
struct buffer_head *root_bh,
- struct buffer_head **first_bh,
- struct buffer_head **header_bh,
+ struct ocfs2_xattr_bucket *first,
+ struct ocfs2_xattr_bucket *target,
u32 *num_clusters,
u32 prev_cpos,
- u64 prev_blkno,
- int *extend)
+ int *extend,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
- int ret, credits;
+ int ret;
u16 bpc = ocfs2_clusters_to_blocks(inode->i_sb, 1);
u32 prev_clusters = *num_clusters;
u32 clusters_to_add = 1, bit_off, num_bits, v_start = 0;
u64 block;
- handle_t *handle = NULL;
- struct ocfs2_alloc_context *data_ac = NULL;
- struct ocfs2_alloc_context *meta_ac = NULL;
+ handle_t *handle = ctxt->handle;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
struct ocfs2_extent_tree et;
mlog(0, "Add new xattr cluster for %llu, previous xattr hash = %u, "
"previous xattr blkno = %llu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno,
- prev_cpos, (unsigned long long)prev_blkno);
+ prev_cpos, (unsigned long long)bucket_blkno(first));
ocfs2_init_xattr_tree_extent_tree(&et, inode, root_bh);
- ret = ocfs2_lock_allocators(inode, &et, clusters_to_add, 0,
- &data_ac, &meta_ac);
- if (ret) {
- mlog_errno(ret);
- goto leave;
- }
-
- credits = ocfs2_calc_extend_credits(osb->sb, et.et_root_el,
- clusters_to_add);
- handle = ocfs2_start_trans(osb, credits);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- handle = NULL;
- mlog_errno(ret);
- goto leave;
- }
-
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_xb(handle, inode, root_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret < 0) {
mlog_errno(ret);
goto leave;
}
- ret = __ocfs2_claim_clusters(osb, handle, data_ac, 1,
+ ret = __ocfs2_claim_clusters(osb, handle, ctxt->data_ac, 1,
clusters_to_add, &bit_off, &num_bits);
if (ret < 0) {
if (ret != -ENOSPC)
@@ -3702,7 +4278,7 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
mlog(0, "Allocating %u clusters at block %u for xattr in inode %llu\n",
num_bits, bit_off, (unsigned long long)OCFS2_I(inode)->ip_blkno);
- if (prev_blkno + prev_clusters * bpc == block &&
+ if (bucket_blkno(first) + (prev_clusters * bpc) == block &&
(prev_clusters + num_bits) << osb->s_clustersize_bits <=
OCFS2_MAX_XATTR_TREE_LEAF_SIZE) {
/*
@@ -3721,10 +4297,9 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
} else {
ret = ocfs2_adjust_xattr_cross_cluster(inode,
handle,
- first_bh,
- header_bh,
+ first,
+ target,
block,
- prev_blkno,
prev_clusters,
&v_start,
extend);
@@ -3734,149 +4309,137 @@ static int ocfs2_add_new_xattr_cluster(struct inode *inode,
}
}
- if (handle->h_buffer_credits < credits) {
- /*
- * The journal has been restarted before, and don't
- * have enough space for the insertion, so extend it
- * here.
- */
- ret = ocfs2_extend_trans(handle, credits);
- if (ret) {
- mlog_errno(ret);
- goto leave;
- }
- }
mlog(0, "Insert %u clusters at block %llu for xattr at %u\n",
num_bits, (unsigned long long)block, v_start);
ret = ocfs2_insert_extent(osb, handle, inode, &et, v_start, block,
- num_bits, 0, meta_ac);
+ num_bits, 0, ctxt->meta_ac);
if (ret < 0) {
mlog_errno(ret);
goto leave;
}
ret = ocfs2_journal_dirty(handle, root_bh);
- if (ret < 0) {
+ if (ret < 0)
mlog_errno(ret);
- goto leave;
- }
leave:
- if (handle)
- ocfs2_commit_trans(osb, handle);
- if (data_ac)
- ocfs2_free_alloc_context(data_ac);
- if (meta_ac)
- ocfs2_free_alloc_context(meta_ac);
-
return ret;
}
/*
- * Extend a new xattr bucket and move xattrs to the end one by one until
- * We meet with start_bh. Only move half of the xattrs to the bucket after it.
+ * We are given an extent. 'first' is the bucket at the very front of
+ * the extent. The extent has space for an additional bucket past
+ * bucket_xh(first)->xh_num_buckets. 'target_blkno' is the block number
+ * of the target bucket. We wish to shift every bucket past the target
+ * down one, filling in that additional space. When we get back to the
+ * target, we split the target between itself and the now-empty bucket
+ * at target+1 (aka, target_blkno + blks_per_bucket).
*/
static int ocfs2_extend_xattr_bucket(struct inode *inode,
- struct buffer_head *first_bh,
- struct buffer_head *start_bh,
+ handle_t *handle,
+ struct ocfs2_xattr_bucket *first,
+ u64 target_blk,
u32 num_clusters)
{
int ret, credits;
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- u64 start_blk = start_bh->b_blocknr, end_blk;
- u32 num_buckets = num_clusters * ocfs2_xattr_buckets_per_cluster(osb);
- handle_t *handle;
- struct ocfs2_xattr_header *first_xh =
- (struct ocfs2_xattr_header *)first_bh->b_data;
- u16 bucket = le16_to_cpu(first_xh->xh_num_buckets);
+ u64 end_blk;
+ u16 new_bucket = le16_to_cpu(bucket_xh(first)->xh_num_buckets);
mlog(0, "extend xattr bucket in %llu, xattr extend rec starting "
- "from %llu, len = %u\n", (unsigned long long)start_blk,
- (unsigned long long)first_bh->b_blocknr, num_clusters);
+ "from %llu, len = %u\n", (unsigned long long)target_blk,
+ (unsigned long long)bucket_blkno(first), num_clusters);
- BUG_ON(bucket >= num_buckets);
+ /* The extent must have room for an additional bucket */
+ BUG_ON(new_bucket >=
+ (num_clusters * ocfs2_xattr_buckets_per_cluster(osb)));
- end_blk = first_bh->b_blocknr + (bucket - 1) * blk_per_bucket;
+ /* end_blk points to the last existing bucket */
+ end_blk = bucket_blkno(first) + ((new_bucket - 1) * blk_per_bucket);
/*
- * We will touch all the buckets after the start_bh(include it).
- * Add one more bucket and modify the first_bh.
+ * end_blk is the start of the last existing bucket.
+ * Thus, (end_blk - target_blk) covers the target bucket and
+ * every bucket after it up to, but not including, the last
+ * existing bucket. Then we add the last existing bucket, the
+ * new bucket, and the first bucket (3 * blk_per_bucket).
*/
- credits = end_blk - start_blk + 2 * blk_per_bucket + 1;
- handle = ocfs2_start_trans(osb, credits);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- handle = NULL;
+ credits = (end_blk - target_blk) + (3 * blk_per_bucket) +
+ handle->h_buffer_credits;
+ ret = ocfs2_extend_trans(handle, credits);
+ if (ret) {
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode, first_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_xattr_bucket_journal_access(handle, first,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
- goto commit;
+ goto out;
}
- while (end_blk != start_blk) {
+ while (end_blk != target_blk) {
ret = ocfs2_cp_xattr_bucket(inode, handle, end_blk,
end_blk + blk_per_bucket, 0);
if (ret)
- goto commit;
+ goto out;
end_blk -= blk_per_bucket;
}
- /* Move half of the xattr in start_blk to the next bucket. */
- ret = ocfs2_divide_xattr_bucket(inode, handle, start_blk,
- start_blk + blk_per_bucket, NULL, 0);
+ /* Move half of the xattr in target_blkno to the next bucket. */
+ ret = ocfs2_divide_xattr_bucket(inode, handle, target_blk,
+ target_blk + blk_per_bucket, NULL, 0);
- le16_add_cpu(&first_xh->xh_num_buckets, 1);
- ocfs2_journal_dirty(handle, first_bh);
+ le16_add_cpu(&bucket_xh(first)->xh_num_buckets, 1);
+ ocfs2_xattr_bucket_journal_dirty(handle, first);
-commit:
- ocfs2_commit_trans(osb, handle);
out:
return ret;
}
/*
- * Add new xattr bucket in an extent record and adjust the buckets accordingly.
- * xb_bh is the ocfs2_xattr_block.
- * We will move all the buckets starting from header_bh to the next place. As
- * for this one, half num of its xattrs will be moved to the next one.
+ * Add new xattr bucket in an extent record and adjust the buckets
+ * accordingly. xb_bh is the ocfs2_xattr_block, and target is the
+ * bucket we want to insert into.
*
- * We will allocate a new cluster if current cluster is full and adjust
- * header_bh and first_bh if the insert place is moved to the new cluster.
+ * In the easy case, we will move all the buckets after target down by
+ * one. Half of target's xattrs will be moved to the next bucket.
+ *
+ * If current cluster is full, we'll allocate a new one. This may not
+ * be contiguous. The underlying calls will make sure that there is
+ * space for the insert, shifting buckets around if necessary.
+ * 'target' may be moved by those calls.
*/
static int ocfs2_add_new_xattr_bucket(struct inode *inode,
struct buffer_head *xb_bh,
- struct buffer_head *header_bh)
+ struct ocfs2_xattr_bucket *target,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
- struct ocfs2_xattr_header *first_xh = NULL;
- struct buffer_head *first_bh = NULL;
struct ocfs2_xattr_block *xb =
(struct ocfs2_xattr_block *)xb_bh->b_data;
struct ocfs2_xattr_tree_root *xb_root = &xb->xb_attrs.xb_root;
struct ocfs2_extent_list *el = &xb_root->xt_list;
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)header_bh->b_data;
- u32 name_hash = le32_to_cpu(xh->xh_entries[0].xe_name_hash);
- struct super_block *sb = inode->i_sb;
- struct ocfs2_super *osb = OCFS2_SB(sb);
+ u32 name_hash =
+ le32_to_cpu(bucket_xh(target)->xh_entries[0].xe_name_hash);
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
int ret, num_buckets, extend = 1;
u64 p_blkno;
u32 e_cpos, num_clusters;
+ /* The bucket at the front of the extent */
+ struct ocfs2_xattr_bucket *first;
- mlog(0, "Add new xattr bucket starting form %llu\n",
- (unsigned long long)header_bh->b_blocknr);
+ mlog(0, "Add new xattr bucket starting from %llu\n",
+ (unsigned long long)bucket_blkno(target));
- /*
- * Add refrence for header_bh here because it may be
- * changed in ocfs2_add_new_xattr_cluster and we need
- * to free it in the end.
- */
- get_bh(header_bh);
+ /* The first bucket of the original extent */
+ first = ocfs2_xattr_bucket_new(inode);
+ if (!first) {
+ ret = -ENOMEM;
+ mlog_errno(ret);
+ goto out;
+ }
ret = ocfs2_xattr_get_rec(inode, name_hash, &p_blkno, &e_cpos,
&num_clusters, el);
@@ -3885,40 +4448,45 @@ static int ocfs2_add_new_xattr_bucket(struct inode *inode,
goto out;
}
- ret = ocfs2_read_block(inode, p_blkno, &first_bh);
+ ret = ocfs2_read_xattr_bucket(first, p_blkno);
if (ret) {
mlog_errno(ret);
goto out;
}
num_buckets = ocfs2_xattr_buckets_per_cluster(osb) * num_clusters;
- first_xh = (struct ocfs2_xattr_header *)first_bh->b_data;
-
- if (num_buckets == le16_to_cpu(first_xh->xh_num_buckets)) {
+ if (num_buckets == le16_to_cpu(bucket_xh(first)->xh_num_buckets)) {
+ /*
+ * This can move first+target if the target bucket moves
+ * to the new extent.
+ */
ret = ocfs2_add_new_xattr_cluster(inode,
xb_bh,
- &first_bh,
- &header_bh,
+ first,
+ target,
&num_clusters,
e_cpos,
- p_blkno,
- &extend);
+ &extend,
+ ctxt);
if (ret) {
mlog_errno(ret);
goto out;
}
}
- if (extend)
+ if (extend) {
ret = ocfs2_extend_xattr_bucket(inode,
- first_bh,
- header_bh,
+ ctxt->handle,
+ first,
+ bucket_blkno(target),
num_clusters);
- if (ret)
- mlog_errno(ret);
+ if (ret)
+ mlog_errno(ret);
+ }
+
out:
- brelse(first_bh);
- brelse(header_bh);
+ ocfs2_xattr_bucket_free(first);
+
return ret;
}
@@ -3929,7 +4497,7 @@ static inline char *ocfs2_xattr_bucket_get_val(struct inode *inode,
int block_off = offs >> inode->i_sb->s_blocksize_bits;
offs = offs % inode->i_sb->s_blocksize;
- return bucket->bhs[block_off]->b_data + offs;
+ return bucket_block(bucket, block_off) + offs;
}
/*
@@ -3984,7 +4552,7 @@ static void ocfs2_xattr_set_entry_normal(struct inode *inode,
xe->xe_value_size = 0;
val = ocfs2_xattr_bucket_get_val(inode,
- &xs->bucket, offs);
+ xs->bucket, offs);
memset(val + OCFS2_XATTR_SIZE(name_len), 0,
size - OCFS2_XATTR_SIZE(name_len));
if (OCFS2_XATTR_SIZE(xi->value_len) > 0)
@@ -4062,8 +4630,7 @@ set_new_name_value:
xh->xh_free_start = cpu_to_le16(offs);
}
- val = ocfs2_xattr_bucket_get_val(inode,
- &xs->bucket, offs - size);
+ val = ocfs2_xattr_bucket_get_val(inode, xs->bucket, offs - size);
xe->xe_name_offset = cpu_to_le16(offs - size);
memset(val, 0, size);
@@ -4079,125 +4646,45 @@ set_new_name_value:
return;
}
-static int ocfs2_xattr_bucket_handle_journal(struct inode *inode,
- handle_t *handle,
- struct ocfs2_xattr_search *xs,
- struct buffer_head **bhs,
- u16 bh_num)
-{
- int ret = 0, off, block_off;
- struct ocfs2_xattr_entry *xe = xs->here;
-
- /*
- * First calculate all the blocks we should journal_access
- * and journal_dirty. The first block should always be touched.
- */
- ret = ocfs2_journal_dirty(handle, bhs[0]);
- if (ret)
- mlog_errno(ret);
-
- /* calc the data. */
- off = le16_to_cpu(xe->xe_name_offset);
- block_off = off >> inode->i_sb->s_blocksize_bits;
- ret = ocfs2_journal_dirty(handle, bhs[block_off]);
- if (ret)
- mlog_errno(ret);
-
- return ret;
-}
-
/*
* Set the xattr entry in the specified bucket.
* The bucket is indicated by xs->bucket and it should have the enough
* space for the xattr insertion.
*/
static int ocfs2_xattr_set_entry_in_bucket(struct inode *inode,
+ handle_t *handle,
struct ocfs2_xattr_info *xi,
struct ocfs2_xattr_search *xs,
u32 name_hash,
int local)
{
- int i, ret;
- handle_t *handle = NULL;
- u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ int ret;
+ u64 blkno;
mlog(0, "Set xattr entry len = %lu index = %d in bucket %llu\n",
(unsigned long)xi->value_len, xi->name_index,
- (unsigned long long)xs->bucket.bhs[0]->b_blocknr);
+ (unsigned long long)bucket_blkno(xs->bucket));
- if (!xs->bucket.bhs[1]) {
- ret = ocfs2_read_blocks(inode,
- xs->bucket.bhs[0]->b_blocknr + 1,
- blk_per_bucket - 1, &xs->bucket.bhs[1],
- 0);
+ if (!xs->bucket->bu_bhs[1]) {
+ blkno = bucket_blkno(xs->bucket);
+ ocfs2_xattr_bucket_relse(xs->bucket);
+ ret = ocfs2_read_xattr_bucket(xs->bucket, blkno);
if (ret) {
mlog_errno(ret);
goto out;
}
}
- handle = ocfs2_start_trans(osb, blk_per_bucket);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- handle = NULL;
+ ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret < 0) {
mlog_errno(ret);
goto out;
}
- for (i = 0; i < blk_per_bucket; i++) {
- ret = ocfs2_journal_access(handle, inode, xs->bucket.bhs[i],
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret < 0) {
- mlog_errno(ret);
- goto out;
- }
- }
-
ocfs2_xattr_set_entry_normal(inode, xi, xs, name_hash, local);
+ ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
- /*Only dirty the blocks we have touched in set xattr. */
- ret = ocfs2_xattr_bucket_handle_journal(inode, handle, xs,
- xs->bucket.bhs, blk_per_bucket);
- if (ret)
- mlog_errno(ret);
-out:
- ocfs2_commit_trans(osb, handle);
-
- return ret;
-}
-
-static int ocfs2_xattr_value_update_size(struct inode *inode,
- struct buffer_head *xe_bh,
- struct ocfs2_xattr_entry *xe,
- u64 new_size)
-{
- int ret;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- handle_t *handle = NULL;
-
- handle = ocfs2_start_trans(osb, 1);
- if (IS_ERR(handle)) {
- ret = -ENOMEM;
- mlog_errno(ret);
- goto out;
- }
-
- ret = ocfs2_journal_access(handle, inode, xe_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
- if (ret < 0) {
- mlog_errno(ret);
- goto out_commit;
- }
-
- xe->xe_value_size = cpu_to_le64(new_size);
-
- ret = ocfs2_journal_dirty(handle, xe_bh);
- if (ret < 0)
- mlog_errno(ret);
-
-out_commit:
- ocfs2_commit_trans(osb, handle);
out:
return ret;
}
@@ -4210,18 +4697,19 @@ out:
* Copy the new updated xe and xe_value_root to new_xe and new_xv if needed.
*/
static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
- struct buffer_head *header_bh,
+ struct ocfs2_xattr_bucket *bucket,
int xe_off,
- int len)
+ int len,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, offset;
u64 value_blk;
- struct buffer_head *value_bh = NULL;
- struct ocfs2_xattr_value_root *xv;
struct ocfs2_xattr_entry *xe;
- struct ocfs2_xattr_header *xh =
- (struct ocfs2_xattr_header *)header_bh->b_data;
+ struct ocfs2_xattr_header *xh = bucket_xh(bucket);
size_t blocksize = inode->i_sb->s_blocksize;
+ struct ocfs2_xattr_value_buf vb = {
+ .vb_access = ocfs2_journal_access,
+ };
xe = &xh->xh_entries[xe_off];
@@ -4234,49 +4722,58 @@ static int ocfs2_xattr_bucket_value_truncate(struct inode *inode,
/* We don't allow ocfs2_xattr_value to be stored in different block. */
BUG_ON(value_blk != (offset + OCFS2_XATTR_ROOT_SIZE - 1) / blocksize);
- value_blk += header_bh->b_blocknr;
- ret = ocfs2_read_block(inode, value_blk, &value_bh);
+ vb.vb_bh = bucket->bu_bhs[value_blk];
+ BUG_ON(!vb.vb_bh);
+
+ vb.vb_xv = (struct ocfs2_xattr_value_root *)
+ (vb.vb_bh->b_data + offset % blocksize);
+
+ ret = ocfs2_xattr_bucket_journal_access(ctxt->handle, bucket,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out;
}
- xv = (struct ocfs2_xattr_value_root *)
- (value_bh->b_data + offset % blocksize);
-
+ /*
+ * From here on out we have to dirty the bucket. The generic
+ * value calls only modify one of the bucket's bhs, but we need
+ * to send the bucket at once. So if they error, they *could* have
+ * modified something. We have to assume they did, and dirty
+ * the whole bucket. This leaves us in a consistent state.
+ */
mlog(0, "truncate %u in xattr bucket %llu to %d bytes.\n",
- xe_off, (unsigned long long)header_bh->b_blocknr, len);
- ret = ocfs2_xattr_value_truncate(inode, value_bh, xv, len);
+ xe_off, (unsigned long long)bucket_blkno(bucket), len);
+ ret = ocfs2_xattr_value_truncate(inode, &vb, len, ctxt);
if (ret) {
mlog_errno(ret);
- goto out;
+ goto out_dirty;
}
- ret = ocfs2_xattr_value_update_size(inode, header_bh, xe, len);
- if (ret) {
- mlog_errno(ret);
- goto out;
- }
+ xe->xe_value_size = cpu_to_le64(len);
+
+out_dirty:
+ ocfs2_xattr_bucket_journal_dirty(ctxt->handle, bucket);
out:
- brelse(value_bh);
return ret;
}
static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
- struct ocfs2_xattr_search *xs,
- int len)
+ struct ocfs2_xattr_search *xs,
+ int len,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, offset;
struct ocfs2_xattr_entry *xe = xs->here;
struct ocfs2_xattr_header *xh = (struct ocfs2_xattr_header *)xs->base;
- BUG_ON(!xs->bucket.bhs[0] || !xe || ocfs2_xattr_is_local(xe));
+ BUG_ON(!xs->bucket->bu_bhs[0] || !xe || ocfs2_xattr_is_local(xe));
offset = xe - xh->xh_entries;
- ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket.bhs[0],
- offset, len);
+ ret = ocfs2_xattr_bucket_value_truncate(inode, xs->bucket,
+ offset, len, ctxt);
if (ret)
mlog_errno(ret);
@@ -4284,6 +4781,7 @@ static int ocfs2_xattr_bucket_value_truncate_xs(struct inode *inode,
}
static int ocfs2_xattr_bucket_set_value_outside(struct inode *inode,
+ handle_t *handle,
struct ocfs2_xattr_search *xs,
char *val,
int value_len)
@@ -4299,7 +4797,8 @@ static int ocfs2_xattr_bucket_set_value_outside(struct inode *inode,
xv = (struct ocfs2_xattr_value_root *)(xs->base + offset);
- return __ocfs2_xattr_set_value_outside(inode, xv, val, value_len);
+ return __ocfs2_xattr_set_value_outside(inode, handle,
+ xv, val, value_len);
}
static int ocfs2_rm_xattr_cluster(struct inode *inode,
@@ -4343,15 +4842,15 @@ static int ocfs2_rm_xattr_cluster(struct inode *inode,
}
}
- handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS);
+ handle = ocfs2_start_trans(osb, ocfs2_remove_extent_credits(osb->sb));
if (IS_ERR(handle)) {
ret = -ENOMEM;
mlog_errno(ret);
goto out;
}
- ret = ocfs2_journal_access(handle, inode, root_bh,
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_journal_access_xb(handle, inode, root_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
goto out_commit;
@@ -4392,26 +4891,19 @@ out:
}
static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
+ handle_t *handle,
struct ocfs2_xattr_search *xs)
{
- handle_t *handle = NULL;
- struct ocfs2_xattr_header *xh = xs->bucket.xh;
+ struct ocfs2_xattr_header *xh = bucket_xh(xs->bucket);
struct ocfs2_xattr_entry *last = &xh->xh_entries[
le16_to_cpu(xh->xh_count) - 1];
int ret = 0;
- handle = ocfs2_start_trans((OCFS2_SB(inode->i_sb)), 1);
- if (IS_ERR(handle)) {
- ret = PTR_ERR(handle);
- mlog_errno(ret);
- return;
- }
-
- ret = ocfs2_journal_access(handle, inode, xs->bucket.bhs[0],
- OCFS2_JOURNAL_ACCESS_WRITE);
+ ret = ocfs2_xattr_bucket_journal_access(handle, xs->bucket,
+ OCFS2_JOURNAL_ACCESS_WRITE);
if (ret) {
mlog_errno(ret);
- goto out_commit;
+ return;
}
/* Remove the old entry. */
@@ -4420,11 +4912,7 @@ static void ocfs2_xattr_bucket_remove_xs(struct inode *inode,
memset(last, 0, sizeof(struct ocfs2_xattr_entry));
le16_add_cpu(&xh->xh_count, -1);
- ret = ocfs2_journal_dirty(handle, xs->bucket.bhs[0]);
- if (ret < 0)
- mlog_errno(ret);
-out_commit:
- ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
+ ocfs2_xattr_bucket_journal_dirty(handle, xs->bucket);
}
/*
@@ -4440,7 +4928,8 @@ out_commit:
*/
static int ocfs2_xattr_set_in_bucket(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
int ret, local = 1;
size_t value_len;
@@ -4468,7 +4957,8 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
value_len = 0;
ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
- value_len);
+ value_len,
+ ctxt);
if (ret)
goto out;
@@ -4488,7 +4978,8 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
xi->value_len = OCFS2_XATTR_ROOT_SIZE;
}
- ret = ocfs2_xattr_set_entry_in_bucket(inode, xi, xs, name_hash, local);
+ ret = ocfs2_xattr_set_entry_in_bucket(inode, ctxt->handle, xi, xs,
+ name_hash, local);
if (ret) {
mlog_errno(ret);
goto out;
@@ -4499,7 +4990,7 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
/* allocate the space now for the outside block storage. */
ret = ocfs2_xattr_bucket_value_truncate_xs(inode, xs,
- value_len);
+ value_len, ctxt);
if (ret) {
mlog_errno(ret);
@@ -4509,13 +5000,14 @@ static int ocfs2_xattr_set_in_bucket(struct inode *inode,
* storage and we have allocated xattr already,
* so need to remove it.
*/
- ocfs2_xattr_bucket_remove_xs(inode, xs);
+ ocfs2_xattr_bucket_remove_xs(inode, ctxt->handle, xs);
}
goto out;
}
set_value_outside:
- ret = ocfs2_xattr_bucket_set_value_outside(inode, xs, val, value_len);
+ ret = ocfs2_xattr_bucket_set_value_outside(inode, ctxt->handle,
+ xs, val, value_len);
out:
return ret;
}
@@ -4530,7 +5022,7 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
struct ocfs2_xattr_bucket *bucket,
const char *name)
{
- struct ocfs2_xattr_header *xh = bucket->xh;
+ struct ocfs2_xattr_header *xh = bucket_xh(bucket);
u32 name_hash = ocfs2_xattr_name_hash(inode, name, strlen(name));
if (name_hash != le32_to_cpu(xh->xh_entries[0].xe_name_hash))
@@ -4540,7 +5032,7 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
xh->xh_entries[0].xe_name_hash) {
mlog(ML_ERROR, "Too much hash collision in xattr bucket %llu, "
"hash = %u\n",
- (unsigned long long)bucket->bhs[0]->b_blocknr,
+ (unsigned long long)bucket_blkno(bucket),
le32_to_cpu(xh->xh_entries[0].xe_name_hash));
return -ENOSPC;
}
@@ -4550,16 +5042,16 @@ static int ocfs2_check_xattr_bucket_collision(struct inode *inode,
static int ocfs2_xattr_set_entry_index_block(struct inode *inode,
struct ocfs2_xattr_info *xi,
- struct ocfs2_xattr_search *xs)
+ struct ocfs2_xattr_search *xs,
+ struct ocfs2_xattr_set_ctxt *ctxt)
{
struct ocfs2_xattr_header *xh;
struct ocfs2_xattr_entry *xe;
u16 count, header_size, xh_free_start;
- int i, free, max_free, need, old;
+ int free, max_free, need, old;
size_t value_size = 0, name_len = strlen(xi->name);
size_t blocksize = inode->i_sb->s_blocksize;
int ret, allocation = 0;
- u16 blk_per_bucket = ocfs2_blocks_per_xattr_bucket(inode->i_sb);
mlog_entry("Set xattr %s in xattr index block\n", xi->name);
@@ -4574,7 +5066,7 @@ try_again:
mlog_bug_on_msg(header_size > blocksize, "bucket %llu has header size "
"of %u which exceed block size\n",
- (unsigned long long)xs->bucket.bhs[0]->b_blocknr,
+ (unsigned long long)bucket_blkno(xs->bucket),
header_size);
if (xi->value && xi->value_len > OCFS2_XATTR_INLINE_SIZE)
@@ -4614,11 +5106,13 @@ try_again:
mlog(0, "xs->not_found = %d, in xattr bucket %llu: free = %d, "
"need = %d, max_free = %d, xh_free_start = %u, xh_name_value_len ="
" %u\n", xs->not_found,
- (unsigned long long)xs->bucket.bhs[0]->b_blocknr,
+ (unsigned long long)bucket_blkno(xs->bucket),
free, need, max_free, le16_to_cpu(xh->xh_free_start),
le16_to_cpu(xh->xh_name_value_len));
- if (free < need || count == ocfs2_xattr_max_xe_in_bucket(inode->i_sb)) {
+ if (free < need ||
+ (xs->not_found &&
+ count == ocfs2_xattr_max_xe_in_bucket(inode->i_sb))) {
if (need <= max_free &&
count < ocfs2_xattr_max_xe_in_bucket(inode->i_sb)) {
/*
@@ -4626,7 +5120,8 @@ try_again:
* name/value will be moved, the xe shouldn't be changed
* in xs.
*/
- ret = ocfs2_defrag_xattr_bucket(inode, &xs->bucket);
+ ret = ocfs2_defrag_xattr_bucket(inode, ctxt->handle,
+ xs->bucket);
if (ret) {
mlog_errno(ret);
goto out;
@@ -4658,7 +5153,7 @@ try_again:
* add a new bucket for the insert.
*/
ret = ocfs2_check_xattr_bucket_collision(inode,
- &xs->bucket,
+ xs->bucket,
xi->name);
if (ret) {
mlog_errno(ret);
@@ -4667,17 +5162,21 @@ try_again:
ret = ocfs2_add_new_xattr_bucket(inode,
xs->xattr_bh,
- xs->bucket.bhs[0]);
+ xs->bucket,
+ ctxt);
if (ret) {
mlog_errno(ret);
goto out;
}
- for (i = 0; i < blk_per_bucket; i++)
- brelse(xs->bucket.bhs[i]);
-
- memset(&xs->bucket, 0, sizeof(xs->bucket));
-
+ /*
+ * ocfs2_add_new_xattr_bucket() will have updated
+ * xs->bucket if it moved, but it will not have updated
+ * any of the other search fields. Thus, we drop it and
+ * re-search. Everything should be cached, so it'll be
+ * quick.
+ */
+ ocfs2_xattr_bucket_relse(xs->bucket);
ret = ocfs2_xattr_index_block_find(inode, xs->xattr_bh,
xi->name_index,
xi->name, xs);
@@ -4689,7 +5188,7 @@ try_again:
}
xattr_set:
- ret = ocfs2_xattr_set_in_bucket(inode, xi, xs);
+ ret = ocfs2_xattr_set_in_bucket(inode, xi, xs, ctxt);
out:
mlog_exit(ret);
return ret;
@@ -4700,24 +5199,41 @@ static int ocfs2_delete_xattr_in_bucket(struct inode *inode,
void *para)
{
int ret = 0;
- struct ocfs2_xattr_header *xh = bucket->xh;
+ struct ocfs2_xattr_header *xh = bucket_xh(bucket);
u16 i;
struct ocfs2_xattr_entry *xe;
+ struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+ struct ocfs2_xattr_set_ctxt ctxt = {NULL, NULL,};
+ int credits = ocfs2_remove_extent_credits(osb->sb) +
+ ocfs2_blocks_per_xattr_bucket(inode->i_sb);
+
+
+ ocfs2_init_dealloc_ctxt(&ctxt.dealloc);
for (i = 0; i < le16_to_cpu(xh->xh_count); i++) {
xe = &xh->xh_entries[i];
if (ocfs2_xattr_is_local(xe))
continue;
- ret = ocfs2_xattr_bucket_value_truncate(inode,
- bucket->bhs[0],
- i, 0);
+ ctxt.handle = ocfs2_start_trans(osb, credits);
+ if (IS_ERR(ctxt.handle)) {
+ ret = PTR_ERR(ctxt.handle);
+ mlog_errno(ret);
+ break;
+ }
+
+ ret = ocfs2_xattr_bucket_value_truncate(inode, bucket,
+ i, 0, &ctxt);
+
+ ocfs2_commit_trans(osb, ctxt.handle);
if (ret) {
mlog_errno(ret);
break;
}
}
+ ocfs2_schedule_truncate_log_flush(osb, 1);
+ ocfs2_run_deallocs(osb, &ctxt.dealloc);
return ret;
}
@@ -4767,6 +5283,74 @@ out:
return ret;
}
+/*
+ * 'security' attributes support
+ */
+static size_t ocfs2_xattr_security_list(struct inode *inode, char *list,
+ size_t list_size, const char *name,
+ size_t name_len)
+{
+ const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
+ const size_t total_len = prefix_len + name_len + 1;
+
+ if (list && total_len <= list_size) {
+ memcpy(list, XATTR_SECURITY_PREFIX, prefix_len);
+ memcpy(list + prefix_len, name, name_len);
+ list[prefix_len + name_len] = '\0';
+ }
+ return total_len;
+}
+
+static int ocfs2_xattr_security_get(struct inode *inode, const char *name,
+ void *buffer, size_t size)
+{
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+ return ocfs2_xattr_get(inode, OCFS2_XATTR_INDEX_SECURITY, name,
+ buffer, size);
+}
+
+static int ocfs2_xattr_security_set(struct inode *inode, const char *name,
+ const void *value, size_t size, int flags)
+{
+ if (strcmp(name, "") == 0)
+ return -EINVAL;
+
+ return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_SECURITY, name, value,
+ size, flags);
+}
+
+int ocfs2_init_security_get(struct inode *inode,
+ struct inode *dir,
+ struct ocfs2_security_xattr_info *si)
+{
+ /* check whether ocfs2 support feature xattr */
+ if (!ocfs2_supports_xattr(OCFS2_SB(dir->i_sb)))
+ return -EOPNOTSUPP;
+ return security_inode_init_security(inode, dir, &si->name, &si->value,
+ &si->value_len);
+}
+
+int ocfs2_init_security_set(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *di_bh,
+ struct ocfs2_security_xattr_info *si,
+ struct ocfs2_alloc_context *xattr_ac,
+ struct ocfs2_alloc_context *data_ac)
+{
+ return ocfs2_xattr_set_handle(handle, inode, di_bh,
+ OCFS2_XATTR_INDEX_SECURITY,
+ si->name, si->value, si->value_len, 0,
+ xattr_ac, data_ac);
+}
+
+struct xattr_handler ocfs2_xattr_security_handler = {
+ .prefix = XATTR_SECURITY_PREFIX,
+ .list = ocfs2_xattr_security_list,
+ .get = ocfs2_xattr_security_get,
+ .set = ocfs2_xattr_security_set,
+};
+
/*
* 'trusted' attributes support
*/
diff --git a/fs/ocfs2/xattr.h b/fs/ocfs2/xattr.h
index 1d8314c7656d..5a1ebc789f7e 100644
--- a/fs/ocfs2/xattr.h
+++ b/fs/ocfs2/xattr.h
@@ -30,13 +30,58 @@ enum ocfs2_xattr_type {
OCFS2_XATTR_MAX
};
+struct ocfs2_security_xattr_info {
+ int enable;
+ char *name;
+ void *value;
+ size_t value_len;
+};
+
extern struct xattr_handler ocfs2_xattr_user_handler;
extern struct xattr_handler ocfs2_xattr_trusted_handler;
+extern struct xattr_handler ocfs2_xattr_security_handler;
+#ifdef CONFIG_OCFS2_FS_POSIX_ACL
+extern struct xattr_handler ocfs2_xattr_acl_access_handler;
+extern struct xattr_handler ocfs2_xattr_acl_default_handler;
+#endif
extern struct xattr_handler *ocfs2_xattr_handlers[];
ssize_t ocfs2_listxattr(struct dentry *, char *, size_t);
+int ocfs2_xattr_get_nolock(struct inode *, struct buffer_head *, int,
+ const char *, void *, size_t);
int ocfs2_xattr_set(struct inode *, int, const char *, const void *,
size_t, int);
+int ocfs2_xattr_set_handle(handle_t *, struct inode *, struct buffer_head *,
+ int, const char *, const void *, size_t, int,
+ struct ocfs2_alloc_context *,
+ struct ocfs2_alloc_context *);
int ocfs2_xattr_remove(struct inode *, struct buffer_head *);
+int ocfs2_init_security_get(struct inode *, struct inode *,
+ struct ocfs2_security_xattr_info *);
+int ocfs2_init_security_set(handle_t *, struct inode *,
+ struct buffer_head *,
+ struct ocfs2_security_xattr_info *,
+ struct ocfs2_alloc_context *,
+ struct ocfs2_alloc_context *);
+int ocfs2_calc_security_init(struct inode *,
+ struct ocfs2_security_xattr_info *,
+ int *, int *, struct ocfs2_alloc_context **);
+int ocfs2_calc_xattr_init(struct inode *, struct buffer_head *,
+ int, struct ocfs2_security_xattr_info *,
+ int *, int *, struct ocfs2_alloc_context **);
+
+/*
+ * xattrs can live inside an inode, as part of an external xattr block,
+ * or inside an xattr bucket, which is the leaf of a tree rooted in an
+ * xattr block. Some of the xattr calls, especially the value setting
+ * functions, want to treat each of these locations as equal. Let's wrap
+ * them in a structure that we can pass around instead of raw buffer_heads.
+ */
+struct ocfs2_xattr_value_buf {
+ struct buffer_head *vb_bh;
+ ocfs2_journal_access_func vb_access;
+ struct ocfs2_xattr_value_root *vb_xv;
+};
+
#endif /* OCFS2_XATTR_H */
diff --git a/fs/quota.c b/fs/quota.c
index b7fe44e01618..4a8c94f05f76 100644
--- a/fs/quota.c
+++ b/fs/quota.c
@@ -73,7 +73,7 @@ static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid
case Q_SETQUOTA:
case Q_GETQUOTA:
/* This is just informative test so we are satisfied without a lock */
- if (!sb_has_quota_enabled(sb, type))
+ if (!sb_has_quota_active(sb, type))
return -ESRCH;
}
@@ -160,6 +160,9 @@ static void quota_sync_sb(struct super_block *sb, int type)
int cnt;
sb->s_qcop->quota_sync(sb, type);
+
+ if (sb_dqopt(sb)->flags & DQUOT_QUOTA_SYS_FILE)
+ return;
/* This is not very clever (and fast) but currently I don't know about
* any other simple way of getting quota data to disk and we must get
* them there for userspace to be visible... */
@@ -175,7 +178,7 @@ static void quota_sync_sb(struct super_block *sb, int type)
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (type != -1 && cnt != type)
continue;
- if (!sb_has_quota_enabled(sb, cnt))
+ if (!sb_has_quota_active(sb, cnt))
continue;
mutex_lock_nested(&sb_dqopt(sb)->files[cnt]->i_mutex, I_MUTEX_QUOTA);
truncate_inode_pages(&sb_dqopt(sb)->files[cnt]->i_data, 0);
@@ -201,7 +204,7 @@ restart:
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
if (type != -1 && type != cnt)
continue;
- if (!sb_has_quota_enabled(sb, cnt))
+ if (!sb_has_quota_active(sb, cnt))
continue;
if (!info_dirty(&sb_dqopt(sb)->info[cnt]) &&
list_empty(&sb_dqopt(sb)->info[cnt].dqi_dirty_list))
@@ -245,7 +248,7 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id, void
__u32 fmt;
down_read(&sb_dqopt(sb)->dqptr_sem);
- if (!sb_has_quota_enabled(sb, type)) {
+ if (!sb_has_quota_active(sb, type)) {
up_read(&sb_dqopt(sb)->dqptr_sem);
return -ESRCH;
}
diff --git a/fs/quota_tree.c b/fs/quota_tree.c
new file mode 100644
index 000000000000..953404c95b17
--- /dev/null
+++ b/fs/quota_tree.c
@@ -0,0 +1,645 @@
+/*
+ * vfsv0 quota IO operations on file
+ */
+
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <linux/dqblk_v2.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/quotaops.h>
+
+#include <asm/byteorder.h>
+
+#include "quota_tree.h"
+
+MODULE_AUTHOR("Jan Kara");
+MODULE_DESCRIPTION("Quota trie support");
+MODULE_LICENSE("GPL");
+
+#define __QUOTA_QT_PARANOIA
+
+typedef char *dqbuf_t;
+
+static int get_index(struct qtree_mem_dqinfo *info, qid_t id, int depth)
+{
+ unsigned int epb = info->dqi_usable_bs >> 2;
+
+ depth = info->dqi_qtree_depth - depth - 1;
+ while (depth--)
+ id /= epb;
+ return id % epb;
+}
+
+/* Number of entries in one blocks */
+static inline int qtree_dqstr_in_blk(struct qtree_mem_dqinfo *info)
+{
+ return (info->dqi_usable_bs - sizeof(struct qt_disk_dqdbheader))
+ / info->dqi_entry_size;
+}
+
+static dqbuf_t getdqbuf(size_t size)
+{
+ dqbuf_t buf = kmalloc(size, GFP_NOFS);
+ if (!buf)
+ printk(KERN_WARNING "VFS: Not enough memory for quota buffers.\n");
+ return buf;
+}
+
+static inline void freedqbuf(dqbuf_t buf)
+{
+ kfree(buf);
+}
+
+static inline ssize_t read_blk(struct qtree_mem_dqinfo *info, uint blk, dqbuf_t buf)
+{
+ struct super_block *sb = info->dqi_sb;
+
+ memset(buf, 0, info->dqi_usable_bs);
+ return sb->s_op->quota_read(sb, info->dqi_type, (char *)buf,
+ info->dqi_usable_bs, blk << info->dqi_blocksize_bits);
+}
+
+static inline ssize_t write_blk(struct qtree_mem_dqinfo *info, uint blk, dqbuf_t buf)
+{
+ struct super_block *sb = info->dqi_sb;
+
+ return sb->s_op->quota_write(sb, info->dqi_type, (char *)buf,
+ info->dqi_usable_bs, blk << info->dqi_blocksize_bits);
+}
+
+/* Remove empty block from list and return it */
+static int get_free_dqblk(struct qtree_mem_dqinfo *info)
+{
+ dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
+ int ret, blk;
+
+ if (!buf)
+ return -ENOMEM;
+ if (info->dqi_free_blk) {
+ blk = info->dqi_free_blk;
+ ret = read_blk(info, blk, buf);
+ if (ret < 0)
+ goto out_buf;
+ info->dqi_free_blk = le32_to_cpu(dh->dqdh_next_free);
+ }
+ else {
+ memset(buf, 0, info->dqi_usable_bs);
+ /* Assure block allocation... */
+ ret = write_blk(info, info->dqi_blocks, buf);
+ if (ret < 0)
+ goto out_buf;
+ blk = info->dqi_blocks++;
+ }
+ mark_info_dirty(info->dqi_sb, info->dqi_type);
+ ret = blk;
+out_buf:
+ freedqbuf(buf);
+ return ret;
+}
+
+/* Insert empty block to the list */
+static int put_free_dqblk(struct qtree_mem_dqinfo *info, dqbuf_t buf, uint blk)
+{
+ struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
+ int err;
+
+ dh->dqdh_next_free = cpu_to_le32(info->dqi_free_blk);
+ dh->dqdh_prev_free = cpu_to_le32(0);
+ dh->dqdh_entries = cpu_to_le16(0);
+ err = write_blk(info, blk, buf);
+ if (err < 0)
+ return err;
+ info->dqi_free_blk = blk;
+ mark_info_dirty(info->dqi_sb, info->dqi_type);
+ return 0;
+}
+
+/* Remove given block from the list of blocks with free entries */
+static int remove_free_dqentry(struct qtree_mem_dqinfo *info, dqbuf_t buf, uint blk)
+{
+ dqbuf_t tmpbuf = getdqbuf(info->dqi_usable_bs);
+ struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
+ uint nextblk = le32_to_cpu(dh->dqdh_next_free);
+ uint prevblk = le32_to_cpu(dh->dqdh_prev_free);
+ int err;
+
+ if (!tmpbuf)
+ return -ENOMEM;
+ if (nextblk) {
+ err = read_blk(info, nextblk, tmpbuf);
+ if (err < 0)
+ goto out_buf;
+ ((struct qt_disk_dqdbheader *)tmpbuf)->dqdh_prev_free =
+ dh->dqdh_prev_free;
+ err = write_blk(info, nextblk, tmpbuf);
+ if (err < 0)
+ goto out_buf;
+ }
+ if (prevblk) {
+ err = read_blk(info, prevblk, tmpbuf);
+ if (err < 0)
+ goto out_buf;
+ ((struct qt_disk_dqdbheader *)tmpbuf)->dqdh_next_free =
+ dh->dqdh_next_free;
+ err = write_blk(info, prevblk, tmpbuf);
+ if (err < 0)
+ goto out_buf;
+ } else {
+ info->dqi_free_entry = nextblk;
+ mark_info_dirty(info->dqi_sb, info->dqi_type);
+ }
+ freedqbuf(tmpbuf);
+ dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
+ /* No matter whether write succeeds block is out of list */
+ if (write_blk(info, blk, buf) < 0)
+ printk(KERN_ERR "VFS: Can't write block (%u) with free entries.\n", blk);
+ return 0;
+out_buf:
+ freedqbuf(tmpbuf);
+ return err;
+}
+
+/* Insert given block to the beginning of list with free entries */
+static int insert_free_dqentry(struct qtree_mem_dqinfo *info, dqbuf_t buf, uint blk)
+{
+ dqbuf_t tmpbuf = getdqbuf(info->dqi_usable_bs);
+ struct qt_disk_dqdbheader *dh = (struct qt_disk_dqdbheader *)buf;
+ int err;
+
+ if (!tmpbuf)
+ return -ENOMEM;
+ dh->dqdh_next_free = cpu_to_le32(info->dqi_free_entry);
+ dh->dqdh_prev_free = cpu_to_le32(0);
+ err = write_blk(info, blk, buf);
+ if (err < 0)
+ goto out_buf;
+ if (info->dqi_free_entry) {
+ err = read_blk(info, info->dqi_free_entry, tmpbuf);
+ if (err < 0)
+ goto out_buf;
+ ((struct qt_disk_dqdbheader *)tmpbuf)->dqdh_prev_free =
+ cpu_to_le32(blk);
+ err = write_blk(info, info->dqi_free_entry, tmpbuf);
+ if (err < 0)
+ goto out_buf;
+ }
+ freedqbuf(tmpbuf);
+ info->dqi_free_entry = blk;
+ mark_info_dirty(info->dqi_sb, info->dqi_type);
+ return 0;
+out_buf:
+ freedqbuf(tmpbuf);
+ return err;
+}
+
+/* Is the entry in the block free? */
+int qtree_entry_unused(struct qtree_mem_dqinfo *info, char *disk)
+{
+ int i;
+
+ for (i = 0; i < info->dqi_entry_size; i++)
+ if (disk[i])
+ return 0;
+ return 1;
+}
+EXPORT_SYMBOL(qtree_entry_unused);
+
+/* Find space for dquot */
+static uint find_free_dqentry(struct qtree_mem_dqinfo *info,
+ struct dquot *dquot, int *err)
+{
+ uint blk, i;
+ struct qt_disk_dqdbheader *dh;
+ dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ char *ddquot;
+
+ *err = 0;
+ if (!buf) {
+ *err = -ENOMEM;
+ return 0;
+ }
+ dh = (struct qt_disk_dqdbheader *)buf;
+ if (info->dqi_free_entry) {
+ blk = info->dqi_free_entry;
+ *err = read_blk(info, blk, buf);
+ if (*err < 0)
+ goto out_buf;
+ } else {
+ blk = get_free_dqblk(info);
+ if ((int)blk < 0) {
+ *err = blk;
+ freedqbuf(buf);
+ return 0;
+ }
+ memset(buf, 0, info->dqi_usable_bs);
+ /* This is enough as block is already zeroed and entry list is empty... */
+ info->dqi_free_entry = blk;
+ mark_info_dirty(dquot->dq_sb, dquot->dq_type);
+ }
+ /* Block will be full? */
+ if (le16_to_cpu(dh->dqdh_entries) + 1 >= qtree_dqstr_in_blk(info)) {
+ *err = remove_free_dqentry(info, buf, blk);
+ if (*err < 0) {
+ printk(KERN_ERR "VFS: find_free_dqentry(): Can't "
+ "remove block (%u) from entry free list.\n",
+ blk);
+ goto out_buf;
+ }
+ }
+ le16_add_cpu(&dh->dqdh_entries, 1);
+ /* Find free structure in block */
+ for (i = 0, ddquot = ((char *)buf) + sizeof(struct qt_disk_dqdbheader);
+ i < qtree_dqstr_in_blk(info) && !qtree_entry_unused(info, ddquot);
+ i++, ddquot += info->dqi_entry_size);
+#ifdef __QUOTA_QT_PARANOIA
+ if (i == qtree_dqstr_in_blk(info)) {
+ printk(KERN_ERR "VFS: find_free_dqentry(): Data block full "
+ "but it shouldn't.\n");
+ *err = -EIO;
+ goto out_buf;
+ }
+#endif
+ *err = write_blk(info, blk, buf);
+ if (*err < 0) {
+ printk(KERN_ERR "VFS: find_free_dqentry(): Can't write quota "
+ "data block %u.\n", blk);
+ goto out_buf;
+ }
+ dquot->dq_off = (blk << info->dqi_blocksize_bits) +
+ sizeof(struct qt_disk_dqdbheader) +
+ i * info->dqi_entry_size;
+ freedqbuf(buf);
+ return blk;
+out_buf:
+ freedqbuf(buf);
+ return 0;
+}
+
+/* Insert reference to structure into the trie */
+static int do_insert_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
+ uint *treeblk, int depth)
+{
+ dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ int ret = 0, newson = 0, newact = 0;
+ __le32 *ref;
+ uint newblk;
+
+ if (!buf)
+ return -ENOMEM;
+ if (!*treeblk) {
+ ret = get_free_dqblk(info);
+ if (ret < 0)
+ goto out_buf;
+ *treeblk = ret;
+ memset(buf, 0, info->dqi_usable_bs);
+ newact = 1;
+ } else {
+ ret = read_blk(info, *treeblk, buf);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't read tree quota block "
+ "%u.\n", *treeblk);
+ goto out_buf;
+ }
+ }
+ ref = (__le32 *)buf;
+ newblk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]);
+ if (!newblk)
+ newson = 1;
+ if (depth == info->dqi_qtree_depth - 1) {
+#ifdef __QUOTA_QT_PARANOIA
+ if (newblk) {
+ printk(KERN_ERR "VFS: Inserting already present quota "
+ "entry (block %u).\n",
+ le32_to_cpu(ref[get_index(info,
+ dquot->dq_id, depth)]));
+ ret = -EIO;
+ goto out_buf;
+ }
+#endif
+ newblk = find_free_dqentry(info, dquot, &ret);
+ } else {
+ ret = do_insert_tree(info, dquot, &newblk, depth+1);
+ }
+ if (newson && ret >= 0) {
+ ref[get_index(info, dquot->dq_id, depth)] =
+ cpu_to_le32(newblk);
+ ret = write_blk(info, *treeblk, buf);
+ } else if (newact && ret < 0) {
+ put_free_dqblk(info, buf, *treeblk);
+ }
+out_buf:
+ freedqbuf(buf);
+ return ret;
+}
+
+/* Wrapper for inserting quota structure into tree */
+static inline int dq_insert_tree(struct qtree_mem_dqinfo *info,
+ struct dquot *dquot)
+{
+ int tmp = QT_TREEOFF;
+ return do_insert_tree(info, dquot, &tmp, 0);
+}
+
+/*
+ * We don't have to be afraid of deadlocks as we never have quotas on quota files...
+ */
+int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
+{
+ int type = dquot->dq_type;
+ struct super_block *sb = dquot->dq_sb;
+ ssize_t ret;
+ dqbuf_t ddquot = getdqbuf(info->dqi_entry_size);
+
+ if (!ddquot)
+ return -ENOMEM;
+
+ /* dq_off is guarded by dqio_mutex */
+ if (!dquot->dq_off) {
+ ret = dq_insert_tree(info, dquot);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Error %zd occurred while "
+ "creating quota.\n", ret);
+ freedqbuf(ddquot);
+ return ret;
+ }
+ }
+ spin_lock(&dq_data_lock);
+ info->dqi_ops->mem2disk_dqblk(ddquot, dquot);
+ spin_unlock(&dq_data_lock);
+ ret = sb->s_op->quota_write(sb, type, (char *)ddquot,
+ info->dqi_entry_size, dquot->dq_off);
+ if (ret != info->dqi_entry_size) {
+ printk(KERN_WARNING "VFS: dquota write failed on dev %s\n",
+ sb->s_id);
+ if (ret >= 0)
+ ret = -ENOSPC;
+ } else {
+ ret = 0;
+ }
+ dqstats.writes++;
+ freedqbuf(ddquot);
+
+ return ret;
+}
+EXPORT_SYMBOL(qtree_write_dquot);
+
+/* Free dquot entry in data block */
+static int free_dqentry(struct qtree_mem_dqinfo *info, struct dquot *dquot,
+ uint blk)
+{
+ struct qt_disk_dqdbheader *dh;
+ dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ int ret = 0;
+
+ if (!buf)
+ return -ENOMEM;
+ if (dquot->dq_off >> info->dqi_blocksize_bits != blk) {
+ printk(KERN_ERR "VFS: Quota structure has offset to other "
+ "block (%u) than it should (%u).\n", blk,
+ (uint)(dquot->dq_off >> info->dqi_blocksize_bits));
+ goto out_buf;
+ }
+ ret = read_blk(info, blk, buf);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't read quota data block %u\n", blk);
+ goto out_buf;
+ }
+ dh = (struct qt_disk_dqdbheader *)buf;
+ le16_add_cpu(&dh->dqdh_entries, -1);
+ if (!le16_to_cpu(dh->dqdh_entries)) { /* Block got free? */
+ ret = remove_free_dqentry(info, buf, blk);
+ if (ret >= 0)
+ ret = put_free_dqblk(info, buf, blk);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't move quota data block (%u) "
+ "to free list.\n", blk);
+ goto out_buf;
+ }
+ } else {
+ memset(buf +
+ (dquot->dq_off & ((1 << info->dqi_blocksize_bits) - 1)),
+ 0, info->dqi_entry_size);
+ if (le16_to_cpu(dh->dqdh_entries) ==
+ qtree_dqstr_in_blk(info) - 1) {
+ /* Insert will write block itself */
+ ret = insert_free_dqentry(info, buf, blk);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't insert quota data "
+ "block (%u) to free entry list.\n", blk);
+ goto out_buf;
+ }
+ } else {
+ ret = write_blk(info, blk, buf);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't write quota data "
+ "block %u\n", blk);
+ goto out_buf;
+ }
+ }
+ }
+ dquot->dq_off = 0; /* Quota is now unattached */
+out_buf:
+ freedqbuf(buf);
+ return ret;
+}
+
+/* Remove reference to dquot from tree */
+static int remove_tree(struct qtree_mem_dqinfo *info, struct dquot *dquot,
+ uint *blk, int depth)
+{
+ dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ int ret = 0;
+ uint newblk;
+ __le32 *ref = (__le32 *)buf;
+
+ if (!buf)
+ return -ENOMEM;
+ ret = read_blk(info, *blk, buf);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't read quota data block %u\n", *blk);
+ goto out_buf;
+ }
+ newblk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]);
+ if (depth == info->dqi_qtree_depth - 1) {
+ ret = free_dqentry(info, dquot, newblk);
+ newblk = 0;
+ } else {
+ ret = remove_tree(info, dquot, &newblk, depth+1);
+ }
+ if (ret >= 0 && !newblk) {
+ int i;
+ ref[get_index(info, dquot->dq_id, depth)] = cpu_to_le32(0);
+ /* Block got empty? */
+ for (i = 0;
+ i < (info->dqi_usable_bs >> 2) && !ref[i];
+ i++);
+ /* Don't put the root block into the free block list */
+ if (i == (info->dqi_usable_bs >> 2)
+ && *blk != QT_TREEOFF) {
+ put_free_dqblk(info, buf, *blk);
+ *blk = 0;
+ } else {
+ ret = write_blk(info, *blk, buf);
+ if (ret < 0)
+ printk(KERN_ERR "VFS: Can't write quota tree "
+ "block %u.\n", *blk);
+ }
+ }
+out_buf:
+ freedqbuf(buf);
+ return ret;
+}
+
+/* Delete dquot from tree */
+int qtree_delete_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
+{
+ uint tmp = QT_TREEOFF;
+
+ if (!dquot->dq_off) /* Even not allocated? */
+ return 0;
+ return remove_tree(info, dquot, &tmp, 0);
+}
+EXPORT_SYMBOL(qtree_delete_dquot);
+
+/* Find entry in block */
+static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
+ struct dquot *dquot, uint blk)
+{
+ dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ loff_t ret = 0;
+ int i;
+ char *ddquot;
+
+ if (!buf)
+ return -ENOMEM;
+ ret = read_blk(info, blk, buf);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ goto out_buf;
+ }
+ for (i = 0, ddquot = ((char *)buf) + sizeof(struct qt_disk_dqdbheader);
+ i < qtree_dqstr_in_blk(info) && !info->dqi_ops->is_id(ddquot, dquot);
+ i++, ddquot += info->dqi_entry_size);
+ if (i == qtree_dqstr_in_blk(info)) {
+ printk(KERN_ERR "VFS: Quota for id %u referenced "
+ "but not present.\n", dquot->dq_id);
+ ret = -EIO;
+ goto out_buf;
+ } else {
+ ret = (blk << info->dqi_blocksize_bits) + sizeof(struct
+ qt_disk_dqdbheader) + i * info->dqi_entry_size;
+ }
+out_buf:
+ freedqbuf(buf);
+ return ret;
+}
+
+/* Find entry for given id in the tree */
+static loff_t find_tree_dqentry(struct qtree_mem_dqinfo *info,
+ struct dquot *dquot, uint blk, int depth)
+{
+ dqbuf_t buf = getdqbuf(info->dqi_usable_bs);
+ loff_t ret = 0;
+ __le32 *ref = (__le32 *)buf;
+
+ if (!buf)
+ return -ENOMEM;
+ ret = read_blk(info, blk, buf);
+ if (ret < 0) {
+ printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
+ goto out_buf;
+ }
+ ret = 0;
+ blk = le32_to_cpu(ref[get_index(info, dquot->dq_id, depth)]);
+ if (!blk) /* No reference? */
+ goto out_buf;
+ if (depth < info->dqi_qtree_depth - 1)
+ ret = find_tree_dqentry(info, dquot, blk, depth+1);
+ else
+ ret = find_block_dqentry(info, dquot, blk);
+out_buf:
+ freedqbuf(buf);
+ return ret;
+}
+
+/* Find entry for given id in the tree - wrapper function */
+static inline loff_t find_dqentry(struct qtree_mem_dqinfo *info,
+ struct dquot *dquot)
+{
+ return find_tree_dqentry(info, dquot, QT_TREEOFF, 0);
+}
+
+int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
+{
+ int type = dquot->dq_type;
+ struct super_block *sb = dquot->dq_sb;
+ loff_t offset;
+ dqbuf_t ddquot;
+ int ret = 0;
+
+#ifdef __QUOTA_QT_PARANOIA
+ /* Invalidated quota? */
+ if (!sb_dqopt(dquot->dq_sb)->files[type]) {
+ printk(KERN_ERR "VFS: Quota invalidated while reading!\n");
+ return -EIO;
+ }
+#endif
+ /* Do we know offset of the dquot entry in the quota file? */
+ if (!dquot->dq_off) {
+ offset = find_dqentry(info, dquot);
+ if (offset <= 0) { /* Entry not present? */
+ if (offset < 0)
+ printk(KERN_ERR "VFS: Can't read quota "
+ "structure for id %u.\n", dquot->dq_id);
+ dquot->dq_off = 0;
+ set_bit(DQ_FAKE_B, &dquot->dq_flags);
+ memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
+ ret = offset;
+ goto out;
+ }
+ dquot->dq_off = offset;
+ }
+ ddquot = getdqbuf(info->dqi_entry_size);
+ if (!ddquot)
+ return -ENOMEM;
+ ret = sb->s_op->quota_read(sb, type, (char *)ddquot,
+ info->dqi_entry_size, dquot->dq_off);
+ if (ret != info->dqi_entry_size) {
+ if (ret >= 0)
+ ret = -EIO;
+ printk(KERN_ERR "VFS: Error while reading quota "
+ "structure for id %u.\n", dquot->dq_id);
+ set_bit(DQ_FAKE_B, &dquot->dq_flags);
+ memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
+ freedqbuf(ddquot);
+ goto out;
+ }
+ spin_lock(&dq_data_lock);
+ info->dqi_ops->disk2mem_dqblk(dquot, ddquot);
+ if (!dquot->dq_dqb.dqb_bhardlimit &&
+ !dquot->dq_dqb.dqb_bsoftlimit &&
+ !dquot->dq_dqb.dqb_ihardlimit &&
+ !dquot->dq_dqb.dqb_isoftlimit)
+ set_bit(DQ_FAKE_B, &dquot->dq_flags);
+ spin_unlock(&dq_data_lock);
+ freedqbuf(ddquot);
+out:
+ dqstats.reads++;
+ return ret;
+}
+EXPORT_SYMBOL(qtree_read_dquot);
+
+/* Check whether dquot should not be deleted. We know we are
+ * the only one operating on dquot (thanks to dq_lock) */
+int qtree_release_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
+{
+ if (test_bit(DQ_FAKE_B, &dquot->dq_flags) && !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace))
+ return qtree_delete_dquot(info, dquot);
+ return 0;
+}
+EXPORT_SYMBOL(qtree_release_dquot);
diff --git a/fs/quota_tree.h b/fs/quota_tree.h
new file mode 100644
index 000000000000..a1ab8db81a51
--- /dev/null
+++ b/fs/quota_tree.h
@@ -0,0 +1,25 @@
+/*
+ * Definitions of structures for vfsv0 quota format
+ */
+
+#ifndef _LINUX_QUOTA_TREE_H
+#define _LINUX_QUOTA_TREE_H
+
+#include <linux/types.h>
+#include <linux/quota.h>
+
+/*
+ * Structure of header of block with quota structures. It is padded to 16 bytes so
+ * there will be space for exactly 21 quota-entries in a block
+ */
+struct qt_disk_dqdbheader {
+ __le32 dqdh_next_free; /* Number of next block with free entry */
+ __le32 dqdh_prev_free; /* Number of previous block with free entry */
+ __le16 dqdh_entries; /* Number of valid entries in block */
+ __le16 dqdh_pad1;
+ __le32 dqdh_pad2;
+};
+
+#define QT_TREEOFF 1 /* Offset of tree in file in blocks */
+
+#endif /* _LINUX_QUOTAIO_TREE_H */
diff --git a/fs/quota_v1.c b/fs/quota_v1.c
index 5ae15b13eeb0..b4af1c69ad16 100644
--- a/fs/quota_v1.c
+++ b/fs/quota_v1.c
@@ -3,25 +3,39 @@
#include <linux/quota.h>
#include <linux/quotaops.h>
#include <linux/dqblk_v1.h>
-#include <linux/quotaio_v1.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <asm/byteorder.h>
+#include "quotaio_v1.h"
+
MODULE_AUTHOR("Jan Kara");
MODULE_DESCRIPTION("Old quota format support");
MODULE_LICENSE("GPL");
+#define QUOTABLOCK_BITS 10
+#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
+
+static inline qsize_t v1_stoqb(qsize_t space)
+{
+ return (space + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS;
+}
+
+static inline qsize_t v1_qbtos(qsize_t blocks)
+{
+ return blocks << QUOTABLOCK_BITS;
+}
+
static void v1_disk2mem_dqblk(struct mem_dqblk *m, struct v1_disk_dqblk *d)
{
m->dqb_ihardlimit = d->dqb_ihardlimit;
m->dqb_isoftlimit = d->dqb_isoftlimit;
m->dqb_curinodes = d->dqb_curinodes;
- m->dqb_bhardlimit = d->dqb_bhardlimit;
- m->dqb_bsoftlimit = d->dqb_bsoftlimit;
- m->dqb_curspace = ((qsize_t)d->dqb_curblocks) << QUOTABLOCK_BITS;
+ m->dqb_bhardlimit = v1_qbtos(d->dqb_bhardlimit);
+ m->dqb_bsoftlimit = v1_qbtos(d->dqb_bsoftlimit);
+ m->dqb_curspace = v1_qbtos(d->dqb_curblocks);
m->dqb_itime = d->dqb_itime;
m->dqb_btime = d->dqb_btime;
}
@@ -31,9 +45,9 @@ static void v1_mem2disk_dqblk(struct v1_disk_dqblk *d, struct mem_dqblk *m)
d->dqb_ihardlimit = m->dqb_ihardlimit;
d->dqb_isoftlimit = m->dqb_isoftlimit;
d->dqb_curinodes = m->dqb_curinodes;
- d->dqb_bhardlimit = m->dqb_bhardlimit;
- d->dqb_bsoftlimit = m->dqb_bsoftlimit;
- d->dqb_curblocks = toqb(m->dqb_curspace);
+ d->dqb_bhardlimit = v1_stoqb(m->dqb_bhardlimit);
+ d->dqb_bsoftlimit = v1_stoqb(m->dqb_bsoftlimit);
+ d->dqb_curblocks = v1_stoqb(m->dqb_curspace);
d->dqb_itime = m->dqb_itime;
d->dqb_btime = m->dqb_btime;
}
diff --git a/fs/quota_v2.c b/fs/quota_v2.c
index b53827dc02d9..b618b563635c 100644
--- a/fs/quota_v2.c
+++ b/fs/quota_v2.c
@@ -6,7 +6,6 @@
#include <linux/fs.h>
#include <linux/mount.h>
#include <linux/dqblk_v2.h>
-#include <linux/quotaio_v2.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -15,16 +14,37 @@
#include <asm/byteorder.h>
+#include "quota_tree.h"
+#include "quotaio_v2.h"
+
MODULE_AUTHOR("Jan Kara");
MODULE_DESCRIPTION("Quota format v2 support");
MODULE_LICENSE("GPL");
#define __QUOTA_V2_PARANOIA
-typedef char *dqbuf_t;
+static void v2_mem2diskdqb(void *dp, struct dquot *dquot);
+static void v2_disk2memdqb(struct dquot *dquot, void *dp);
+static int v2_is_id(void *dp, struct dquot *dquot);
-#define GETIDINDEX(id, depth) (((id) >> ((V2_DQTREEDEPTH-(depth)-1)*8)) & 0xff)
-#define GETENTRIES(buf) ((struct v2_disk_dqblk *)(((char *)buf)+sizeof(struct v2_disk_dqdbheader)))
+static struct qtree_fmt_operations v2_qtree_ops = {
+ .mem2disk_dqblk = v2_mem2diskdqb,
+ .disk2mem_dqblk = v2_disk2memdqb,
+ .is_id = v2_is_id,
+};
+
+#define QUOTABLOCK_BITS 10
+#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
+
+static inline qsize_t v2_stoqb(qsize_t space)
+{
+ return (space + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS;
+}
+
+static inline qsize_t v2_qbtos(qsize_t blocks)
+{
+ return blocks << QUOTABLOCK_BITS;
+}
/* Check whether given file is really vfsv0 quotafile */
static int v2_check_quota_file(struct super_block *sb, int type)
@@ -50,7 +70,8 @@ static int v2_check_quota_file(struct super_block *sb, int type)
static int v2_read_file_info(struct super_block *sb, int type)
{
struct v2_disk_dqinfo dinfo;
- struct mem_dqinfo *info = sb_dqopt(sb)->info+type;
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct qtree_mem_dqinfo *qinfo;
ssize_t size;
size = sb->s_op->quota_read(sb, type, (char *)&dinfo,
@@ -60,15 +81,29 @@ static int v2_read_file_info(struct super_block *sb, int type)
sb->s_id);
return -1;
}
+ info->dqi_priv = kmalloc(sizeof(struct qtree_mem_dqinfo), GFP_NOFS);
+ if (!info->dqi_priv) {
+ printk(KERN_WARNING
+ "Not enough memory for quota information structure.\n");
+ return -1;
+ }
+ qinfo = info->dqi_priv;
/* limits are stored as unsigned 32-bit data */
info->dqi_maxblimit = 0xffffffff;
info->dqi_maxilimit = 0xffffffff;
info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
info->dqi_flags = le32_to_cpu(dinfo.dqi_flags);
- info->u.v2_i.dqi_blocks = le32_to_cpu(dinfo.dqi_blocks);
- info->u.v2_i.dqi_free_blk = le32_to_cpu(dinfo.dqi_free_blk);
- info->u.v2_i.dqi_free_entry = le32_to_cpu(dinfo.dqi_free_entry);
+ qinfo->dqi_sb = sb;
+ qinfo->dqi_type = type;
+ qinfo->dqi_blocks = le32_to_cpu(dinfo.dqi_blocks);
+ qinfo->dqi_free_blk = le32_to_cpu(dinfo.dqi_free_blk);
+ qinfo->dqi_free_entry = le32_to_cpu(dinfo.dqi_free_entry);
+ qinfo->dqi_blocksize_bits = V2_DQBLKSIZE_BITS;
+ qinfo->dqi_usable_bs = 1 << V2_DQBLKSIZE_BITS;
+ qinfo->dqi_qtree_depth = qtree_depth(qinfo);
+ qinfo->dqi_entry_size = sizeof(struct v2_disk_dqblk);
+ qinfo->dqi_ops = &v2_qtree_ops;
return 0;
}
@@ -76,7 +111,8 @@ static int v2_read_file_info(struct super_block *sb, int type)
static int v2_write_file_info(struct super_block *sb, int type)
{
struct v2_disk_dqinfo dinfo;
- struct mem_dqinfo *info = sb_dqopt(sb)->info+type;
+ struct mem_dqinfo *info = sb_dqinfo(sb, type);
+ struct qtree_mem_dqinfo *qinfo = info->dqi_priv;
ssize_t size;
spin_lock(&dq_data_lock);
@@ -85,9 +121,9 @@ static int v2_write_file_info(struct super_block *sb, int type)
dinfo.dqi_igrace = cpu_to_le32(info->dqi_igrace);
dinfo.dqi_flags = cpu_to_le32(info->dqi_flags & DQF_MASK);
spin_unlock(&dq_data_lock);
- dinfo.dqi_blocks = cpu_to_le32(info->u.v2_i.dqi_blocks);
- dinfo.dqi_free_blk = cpu_to_le32(info->u.v2_i.dqi_free_blk);
- dinfo.dqi_free_entry = cpu_to_le32(info->u.v2_i.dqi_free_entry);
+ dinfo.dqi_blocks = cpu_to_le32(qinfo->dqi_blocks);
+ dinfo.dqi_free_blk = cpu_to_le32(qinfo->dqi_free_blk);
+ dinfo.dqi_free_entry = cpu_to_le32(qinfo->dqi_free_entry);
size = sb->s_op->quota_write(sb, type, (char *)&dinfo,
sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF);
if (size != sizeof(struct v2_disk_dqinfo)) {
@@ -98,574 +134,75 @@ static int v2_write_file_info(struct super_block *sb, int type)
return 0;
}
-static void disk2memdqb(struct mem_dqblk *m, struct v2_disk_dqblk *d)
+static void v2_disk2memdqb(struct dquot *dquot, void *dp)
{
+ struct v2_disk_dqblk *d = dp, empty;
+ struct mem_dqblk *m = &dquot->dq_dqb;
+
m->dqb_ihardlimit = le32_to_cpu(d->dqb_ihardlimit);
m->dqb_isoftlimit = le32_to_cpu(d->dqb_isoftlimit);
m->dqb_curinodes = le32_to_cpu(d->dqb_curinodes);
m->dqb_itime = le64_to_cpu(d->dqb_itime);
- m->dqb_bhardlimit = le32_to_cpu(d->dqb_bhardlimit);
- m->dqb_bsoftlimit = le32_to_cpu(d->dqb_bsoftlimit);
+ m->dqb_bhardlimit = v2_qbtos(le32_to_cpu(d->dqb_bhardlimit));
+ m->dqb_bsoftlimit = v2_qbtos(le32_to_cpu(d->dqb_bsoftlimit));
m->dqb_curspace = le64_to_cpu(d->dqb_curspace);
m->dqb_btime = le64_to_cpu(d->dqb_btime);
+ /* We need to escape back all-zero structure */
+ memset(&empty, 0, sizeof(struct v2_disk_dqblk));
+ empty.dqb_itime = cpu_to_le64(1);
+ if (!memcmp(&empty, dp, sizeof(struct v2_disk_dqblk)))
+ m->dqb_itime = 0;
}
-static void mem2diskdqb(struct v2_disk_dqblk *d, struct mem_dqblk *m, qid_t id)
+static void v2_mem2diskdqb(void *dp, struct dquot *dquot)
{
+ struct v2_disk_dqblk *d = dp;
+ struct mem_dqblk *m = &dquot->dq_dqb;
+ struct qtree_mem_dqinfo *info =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
+
d->dqb_ihardlimit = cpu_to_le32(m->dqb_ihardlimit);
d->dqb_isoftlimit = cpu_to_le32(m->dqb_isoftlimit);
d->dqb_curinodes = cpu_to_le32(m->dqb_curinodes);
d->dqb_itime = cpu_to_le64(m->dqb_itime);
- d->dqb_bhardlimit = cpu_to_le32(m->dqb_bhardlimit);
- d->dqb_bsoftlimit = cpu_to_le32(m->dqb_bsoftlimit);
+ d->dqb_bhardlimit = cpu_to_le32(v2_stoqb(m->dqb_bhardlimit));
+ d->dqb_bsoftlimit = cpu_to_le32(v2_stoqb(m->dqb_bsoftlimit));
d->dqb_curspace = cpu_to_le64(m->dqb_curspace);
d->dqb_btime = cpu_to_le64(m->dqb_btime);
- d->dqb_id = cpu_to_le32(id);
+ d->dqb_id = cpu_to_le32(dquot->dq_id);
+ if (qtree_entry_unused(info, dp))
+ d->dqb_itime = cpu_to_le64(1);
}
-static dqbuf_t getdqbuf(void)
+static int v2_is_id(void *dp, struct dquot *dquot)
{
- dqbuf_t buf = kmalloc(V2_DQBLKSIZE, GFP_NOFS);
- if (!buf)
- printk(KERN_WARNING "VFS: Not enough memory for quota buffers.\n");
- return buf;
-}
+ struct v2_disk_dqblk *d = dp;
+ struct qtree_mem_dqinfo *info =
+ sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv;
-static inline void freedqbuf(dqbuf_t buf)
-{
- kfree(buf);
-}
-
-static inline ssize_t read_blk(struct super_block *sb, int type, uint blk, dqbuf_t buf)
-{
- memset(buf, 0, V2_DQBLKSIZE);
- return sb->s_op->quota_read(sb, type, (char *)buf,
- V2_DQBLKSIZE, blk << V2_DQBLKSIZE_BITS);
-}
-
-static inline ssize_t write_blk(struct super_block *sb, int type, uint blk, dqbuf_t buf)
-{
- return sb->s_op->quota_write(sb, type, (char *)buf,
- V2_DQBLKSIZE, blk << V2_DQBLKSIZE_BITS);
-}
-
-/* Remove empty block from list and return it */
-static int get_free_dqblk(struct super_block *sb, int type)
-{
- dqbuf_t buf = getdqbuf();
- struct mem_dqinfo *info = sb_dqinfo(sb, type);
- struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
- int ret, blk;
-
- if (!buf)
- return -ENOMEM;
- if (info->u.v2_i.dqi_free_blk) {
- blk = info->u.v2_i.dqi_free_blk;
- if ((ret = read_blk(sb, type, blk, buf)) < 0)
- goto out_buf;
- info->u.v2_i.dqi_free_blk = le32_to_cpu(dh->dqdh_next_free);
- }
- else {
- memset(buf, 0, V2_DQBLKSIZE);
- /* Assure block allocation... */
- if ((ret = write_blk(sb, type, info->u.v2_i.dqi_blocks, buf)) < 0)
- goto out_buf;
- blk = info->u.v2_i.dqi_blocks++;
- }
- mark_info_dirty(sb, type);
- ret = blk;
-out_buf:
- freedqbuf(buf);
- return ret;
-}
-
-/* Insert empty block to the list */
-static int put_free_dqblk(struct super_block *sb, int type, dqbuf_t buf, uint blk)
-{
- struct mem_dqinfo *info = sb_dqinfo(sb, type);
- struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
- int err;
-
- dh->dqdh_next_free = cpu_to_le32(info->u.v2_i.dqi_free_blk);
- dh->dqdh_prev_free = cpu_to_le32(0);
- dh->dqdh_entries = cpu_to_le16(0);
- info->u.v2_i.dqi_free_blk = blk;
- mark_info_dirty(sb, type);
- /* Some strange block. We had better leave it... */
- if ((err = write_blk(sb, type, blk, buf)) < 0)
- return err;
- return 0;
-}
-
-/* Remove given block from the list of blocks with free entries */
-static int remove_free_dqentry(struct super_block *sb, int type, dqbuf_t buf, uint blk)
-{
- dqbuf_t tmpbuf = getdqbuf();
- struct mem_dqinfo *info = sb_dqinfo(sb, type);
- struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
- uint nextblk = le32_to_cpu(dh->dqdh_next_free), prevblk = le32_to_cpu(dh->dqdh_prev_free);
- int err;
-
- if (!tmpbuf)
- return -ENOMEM;
- if (nextblk) {
- if ((err = read_blk(sb, type, nextblk, tmpbuf)) < 0)
- goto out_buf;
- ((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_prev_free = dh->dqdh_prev_free;
- if ((err = write_blk(sb, type, nextblk, tmpbuf)) < 0)
- goto out_buf;
- }
- if (prevblk) {
- if ((err = read_blk(sb, type, prevblk, tmpbuf)) < 0)
- goto out_buf;
- ((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_next_free = dh->dqdh_next_free;
- if ((err = write_blk(sb, type, prevblk, tmpbuf)) < 0)
- goto out_buf;
- }
- else {
- info->u.v2_i.dqi_free_entry = nextblk;
- mark_info_dirty(sb, type);
- }
- freedqbuf(tmpbuf);
- dh->dqdh_next_free = dh->dqdh_prev_free = cpu_to_le32(0);
- /* No matter whether write succeeds block is out of list */
- if (write_blk(sb, type, blk, buf) < 0)
- printk(KERN_ERR "VFS: Can't write block (%u) with free entries.\n", blk);
- return 0;
-out_buf:
- freedqbuf(tmpbuf);
- return err;
-}
-
-/* Insert given block to the beginning of list with free entries */
-static int insert_free_dqentry(struct super_block *sb, int type, dqbuf_t buf, uint blk)
-{
- dqbuf_t tmpbuf = getdqbuf();
- struct mem_dqinfo *info = sb_dqinfo(sb, type);
- struct v2_disk_dqdbheader *dh = (struct v2_disk_dqdbheader *)buf;
- int err;
-
- if (!tmpbuf)
- return -ENOMEM;
- dh->dqdh_next_free = cpu_to_le32(info->u.v2_i.dqi_free_entry);
- dh->dqdh_prev_free = cpu_to_le32(0);
- if ((err = write_blk(sb, type, blk, buf)) < 0)
- goto out_buf;
- if (info->u.v2_i.dqi_free_entry) {
- if ((err = read_blk(sb, type, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0)
- goto out_buf;
- ((struct v2_disk_dqdbheader *)tmpbuf)->dqdh_prev_free = cpu_to_le32(blk);
- if ((err = write_blk(sb, type, info->u.v2_i.dqi_free_entry, tmpbuf)) < 0)
- goto out_buf;
- }
- freedqbuf(tmpbuf);
- info->u.v2_i.dqi_free_entry = blk;
- mark_info_dirty(sb, type);
- return 0;
-out_buf:
- freedqbuf(tmpbuf);
- return err;
-}
-
-/* Find space for dquot */
-static uint find_free_dqentry(struct dquot *dquot, int *err)
-{
- struct super_block *sb = dquot->dq_sb;
- struct mem_dqinfo *info = sb_dqopt(sb)->info+dquot->dq_type;
- uint blk, i;
- struct v2_disk_dqdbheader *dh;
- struct v2_disk_dqblk *ddquot;
- struct v2_disk_dqblk fakedquot;
- dqbuf_t buf;
-
- *err = 0;
- if (!(buf = getdqbuf())) {
- *err = -ENOMEM;
+ if (qtree_entry_unused(info, dp))
return 0;
- }
- dh = (struct v2_disk_dqdbheader *)buf;
- ddquot = GETENTRIES(buf);
- if (info->u.v2_i.dqi_free_entry) {
- blk = info->u.v2_i.dqi_free_entry;
- if ((*err = read_blk(sb, dquot->dq_type, blk, buf)) < 0)
- goto out_buf;
- }
- else {
- blk = get_free_dqblk(sb, dquot->dq_type);
- if ((int)blk < 0) {
- *err = blk;
- freedqbuf(buf);
- return 0;
- }
- memset(buf, 0, V2_DQBLKSIZE);
- /* This is enough as block is already zeroed and entry list is empty... */
- info->u.v2_i.dqi_free_entry = blk;
- mark_info_dirty(sb, dquot->dq_type);
- }
- if (le16_to_cpu(dh->dqdh_entries)+1 >= V2_DQSTRINBLK) /* Block will be full? */
- if ((*err = remove_free_dqentry(sb, dquot->dq_type, buf, blk)) < 0) {
- printk(KERN_ERR "VFS: find_free_dqentry(): Can't remove block (%u) from entry free list.\n", blk);
- goto out_buf;
- }
- le16_add_cpu(&dh->dqdh_entries, 1);
- memset(&fakedquot, 0, sizeof(struct v2_disk_dqblk));
- /* Find free structure in block */
- for (i = 0; i < V2_DQSTRINBLK && memcmp(&fakedquot, ddquot+i, sizeof(struct v2_disk_dqblk)); i++);
-#ifdef __QUOTA_V2_PARANOIA
- if (i == V2_DQSTRINBLK) {
- printk(KERN_ERR "VFS: find_free_dqentry(): Data block full but it shouldn't.\n");
- *err = -EIO;
- goto out_buf;
- }
-#endif
- if ((*err = write_blk(sb, dquot->dq_type, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: find_free_dqentry(): Can't write quota data block %u.\n", blk);
- goto out_buf;
- }
- dquot->dq_off = (blk<<V2_DQBLKSIZE_BITS)+sizeof(struct v2_disk_dqdbheader)+i*sizeof(struct v2_disk_dqblk);
- freedqbuf(buf);
- return blk;
-out_buf:
- freedqbuf(buf);
- return 0;
-}
-
-/* Insert reference to structure into the trie */
-static int do_insert_tree(struct dquot *dquot, uint *treeblk, int depth)
-{
- struct super_block *sb = dquot->dq_sb;
- dqbuf_t buf;
- int ret = 0, newson = 0, newact = 0;
- __le32 *ref;
- uint newblk;
-
- if (!(buf = getdqbuf()))
- return -ENOMEM;
- if (!*treeblk) {
- ret = get_free_dqblk(sb, dquot->dq_type);
- if (ret < 0)
- goto out_buf;
- *treeblk = ret;
- memset(buf, 0, V2_DQBLKSIZE);
- newact = 1;
- }
- else {
- if ((ret = read_blk(sb, dquot->dq_type, *treeblk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read tree quota block %u.\n", *treeblk);
- goto out_buf;
- }
- }
- ref = (__le32 *)buf;
- newblk = le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]);
- if (!newblk)
- newson = 1;
- if (depth == V2_DQTREEDEPTH-1) {
-#ifdef __QUOTA_V2_PARANOIA
- if (newblk) {
- printk(KERN_ERR "VFS: Inserting already present quota entry (block %u).\n", le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]));
- ret = -EIO;
- goto out_buf;
- }
-#endif
- newblk = find_free_dqentry(dquot, &ret);
- }
- else
- ret = do_insert_tree(dquot, &newblk, depth+1);
- if (newson && ret >= 0) {
- ref[GETIDINDEX(dquot->dq_id, depth)] = cpu_to_le32(newblk);
- ret = write_blk(sb, dquot->dq_type, *treeblk, buf);
- }
- else if (newact && ret < 0)
- put_free_dqblk(sb, dquot->dq_type, buf, *treeblk);
-out_buf:
- freedqbuf(buf);
- return ret;
-}
-
-/* Wrapper for inserting quota structure into tree */
-static inline int dq_insert_tree(struct dquot *dquot)
-{
- int tmp = V2_DQTREEOFF;
- return do_insert_tree(dquot, &tmp, 0);
-}
-
-/*
- * We don't have to be afraid of deadlocks as we never have quotas on quota files...
- */
-static int v2_write_dquot(struct dquot *dquot)
-{
- int type = dquot->dq_type;
- ssize_t ret;
- struct v2_disk_dqblk ddquot, empty;
-
- /* dq_off is guarded by dqio_mutex */
- if (!dquot->dq_off)
- if ((ret = dq_insert_tree(dquot)) < 0) {
- printk(KERN_ERR "VFS: Error %zd occurred while creating quota.\n", ret);
- return ret;
- }
- spin_lock(&dq_data_lock);
- mem2diskdqb(&ddquot, &dquot->dq_dqb, dquot->dq_id);
- /* Argh... We may need to write structure full of zeroes but that would be
- * treated as an empty place by the rest of the code. Format change would
- * be definitely cleaner but the problems probably are not worth it */
- memset(&empty, 0, sizeof(struct v2_disk_dqblk));
- if (!memcmp(&empty, &ddquot, sizeof(struct v2_disk_dqblk)))
- ddquot.dqb_itime = cpu_to_le64(1);
- spin_unlock(&dq_data_lock);
- ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type,
- (char *)&ddquot, sizeof(struct v2_disk_dqblk), dquot->dq_off);
- if (ret != sizeof(struct v2_disk_dqblk)) {
- printk(KERN_WARNING "VFS: dquota write failed on dev %s\n", dquot->dq_sb->s_id);
- if (ret >= 0)
- ret = -ENOSPC;
- }
- else
- ret = 0;
- dqstats.writes++;
-
- return ret;
-}
-
-/* Free dquot entry in data block */
-static int free_dqentry(struct dquot *dquot, uint blk)
-{
- struct super_block *sb = dquot->dq_sb;
- int type = dquot->dq_type;
- struct v2_disk_dqdbheader *dh;
- dqbuf_t buf = getdqbuf();
- int ret = 0;
-
- if (!buf)
- return -ENOMEM;
- if (dquot->dq_off >> V2_DQBLKSIZE_BITS != blk) {
- printk(KERN_ERR "VFS: Quota structure has offset to other "
- "block (%u) than it should (%u).\n", blk,
- (uint)(dquot->dq_off >> V2_DQBLKSIZE_BITS));
- goto out_buf;
- }
- if ((ret = read_blk(sb, type, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota data block %u\n", blk);
- goto out_buf;
- }
- dh = (struct v2_disk_dqdbheader *)buf;
- le16_add_cpu(&dh->dqdh_entries, -1);
- if (!le16_to_cpu(dh->dqdh_entries)) { /* Block got free? */
- if ((ret = remove_free_dqentry(sb, type, buf, blk)) < 0 ||
- (ret = put_free_dqblk(sb, type, buf, blk)) < 0) {
- printk(KERN_ERR "VFS: Can't move quota data block (%u) "
- "to free list.\n", blk);
- goto out_buf;
- }
- }
- else {
- memset(buf+(dquot->dq_off & ((1 << V2_DQBLKSIZE_BITS)-1)), 0,
- sizeof(struct v2_disk_dqblk));
- if (le16_to_cpu(dh->dqdh_entries) == V2_DQSTRINBLK-1) {
- /* Insert will write block itself */
- if ((ret = insert_free_dqentry(sb, type, buf, blk)) < 0) {
- printk(KERN_ERR "VFS: Can't insert quota data block (%u) to free entry list.\n", blk);
- goto out_buf;
- }
- }
- else
- if ((ret = write_blk(sb, type, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't write quota data "
- "block %u\n", blk);
- goto out_buf;
- }
- }
- dquot->dq_off = 0; /* Quota is now unattached */
-out_buf:
- freedqbuf(buf);
- return ret;
-}
-
-/* Remove reference to dquot from tree */
-static int remove_tree(struct dquot *dquot, uint *blk, int depth)
-{
- struct super_block *sb = dquot->dq_sb;
- int type = dquot->dq_type;
- dqbuf_t buf = getdqbuf();
- int ret = 0;
- uint newblk;
- __le32 *ref = (__le32 *)buf;
-
- if (!buf)
- return -ENOMEM;
- if ((ret = read_blk(sb, type, *blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota data block %u\n", *blk);
- goto out_buf;
- }
- newblk = le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]);
- if (depth == V2_DQTREEDEPTH-1) {
- ret = free_dqentry(dquot, newblk);
- newblk = 0;
- }
- else
- ret = remove_tree(dquot, &newblk, depth+1);
- if (ret >= 0 && !newblk) {
- int i;
- ref[GETIDINDEX(dquot->dq_id, depth)] = cpu_to_le32(0);
- for (i = 0; i < V2_DQBLKSIZE && !buf[i]; i++); /* Block got empty? */
- /* Don't put the root block into the free block list */
- if (i == V2_DQBLKSIZE && *blk != V2_DQTREEOFF) {
- put_free_dqblk(sb, type, buf, *blk);
- *blk = 0;
- }
- else
- if ((ret = write_blk(sb, type, *blk, buf)) < 0)
- printk(KERN_ERR "VFS: Can't write quota tree "
- "block %u.\n", *blk);
- }
-out_buf:
- freedqbuf(buf);
- return ret;
-}
-
-/* Delete dquot from tree */
-static int v2_delete_dquot(struct dquot *dquot)
-{
- uint tmp = V2_DQTREEOFF;
-
- if (!dquot->dq_off) /* Even not allocated? */
- return 0;
- return remove_tree(dquot, &tmp, 0);
-}
-
-/* Find entry in block */
-static loff_t find_block_dqentry(struct dquot *dquot, uint blk)
-{
- dqbuf_t buf = getdqbuf();
- loff_t ret = 0;
- int i;
- struct v2_disk_dqblk *ddquot = GETENTRIES(buf);
-
- if (!buf)
- return -ENOMEM;
- if ((ret = read_blk(dquot->dq_sb, dquot->dq_type, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
- goto out_buf;
- }
- if (dquot->dq_id)
- for (i = 0; i < V2_DQSTRINBLK &&
- le32_to_cpu(ddquot[i].dqb_id) != dquot->dq_id; i++);
- else { /* ID 0 as a bit more complicated searching... */
- struct v2_disk_dqblk fakedquot;
-
- memset(&fakedquot, 0, sizeof(struct v2_disk_dqblk));
- for (i = 0; i < V2_DQSTRINBLK; i++)
- if (!le32_to_cpu(ddquot[i].dqb_id) &&
- memcmp(&fakedquot, ddquot+i, sizeof(struct v2_disk_dqblk)))
- break;
- }
- if (i == V2_DQSTRINBLK) {
- printk(KERN_ERR "VFS: Quota for id %u referenced "
- "but not present.\n", dquot->dq_id);
- ret = -EIO;
- goto out_buf;
- }
- else
- ret = (blk << V2_DQBLKSIZE_BITS) + sizeof(struct
- v2_disk_dqdbheader) + i * sizeof(struct v2_disk_dqblk);
-out_buf:
- freedqbuf(buf);
- return ret;
-}
-
-/* Find entry for given id in the tree */
-static loff_t find_tree_dqentry(struct dquot *dquot, uint blk, int depth)
-{
- dqbuf_t buf = getdqbuf();
- loff_t ret = 0;
- __le32 *ref = (__le32 *)buf;
-
- if (!buf)
- return -ENOMEM;
- if ((ret = read_blk(dquot->dq_sb, dquot->dq_type, blk, buf)) < 0) {
- printk(KERN_ERR "VFS: Can't read quota tree block %u.\n", blk);
- goto out_buf;
- }
- ret = 0;
- blk = le32_to_cpu(ref[GETIDINDEX(dquot->dq_id, depth)]);
- if (!blk) /* No reference? */
- goto out_buf;
- if (depth < V2_DQTREEDEPTH-1)
- ret = find_tree_dqentry(dquot, blk, depth+1);
- else
- ret = find_block_dqentry(dquot, blk);
-out_buf:
- freedqbuf(buf);
- return ret;
-}
-
-/* Find entry for given id in the tree - wrapper function */
-static inline loff_t find_dqentry(struct dquot *dquot)
-{
- return find_tree_dqentry(dquot, V2_DQTREEOFF, 0);
+ return le32_to_cpu(d->dqb_id) == dquot->dq_id;
}
static int v2_read_dquot(struct dquot *dquot)
{
- int type = dquot->dq_type;
- loff_t offset;
- struct v2_disk_dqblk ddquot, empty;
- int ret = 0;
-
-#ifdef __QUOTA_V2_PARANOIA
- /* Invalidated quota? */
- if (!dquot->dq_sb || !sb_dqopt(dquot->dq_sb)->files[type]) {
- printk(KERN_ERR "VFS: Quota invalidated while reading!\n");
- return -EIO;
- }
-#endif
- offset = find_dqentry(dquot);
- if (offset <= 0) { /* Entry not present? */
- if (offset < 0)
- printk(KERN_ERR "VFS: Can't read quota "
- "structure for id %u.\n", dquot->dq_id);
- dquot->dq_off = 0;
- set_bit(DQ_FAKE_B, &dquot->dq_flags);
- memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk));
- ret = offset;
- }
- else {
- dquot->dq_off = offset;
- if ((ret = dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type,
- (char *)&ddquot, sizeof(struct v2_disk_dqblk), offset))
- != sizeof(struct v2_disk_dqblk)) {
- if (ret >= 0)
- ret = -EIO;
- printk(KERN_ERR "VFS: Error while reading quota "
- "structure for id %u.\n", dquot->dq_id);
- memset(&ddquot, 0, sizeof(struct v2_disk_dqblk));
- }
- else {
- ret = 0;
- /* We need to escape back all-zero structure */
- memset(&empty, 0, sizeof(struct v2_disk_dqblk));
- empty.dqb_itime = cpu_to_le64(1);
- if (!memcmp(&empty, &ddquot, sizeof(struct v2_disk_dqblk)))
- ddquot.dqb_itime = 0;
- }
- disk2memdqb(&dquot->dq_dqb, &ddquot);
- if (!dquot->dq_dqb.dqb_bhardlimit &&
- !dquot->dq_dqb.dqb_bsoftlimit &&
- !dquot->dq_dqb.dqb_ihardlimit &&
- !dquot->dq_dqb.dqb_isoftlimit)
- set_bit(DQ_FAKE_B, &dquot->dq_flags);
- }
- dqstats.reads++;
-
- return ret;
+ return qtree_read_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv, dquot);
+}
+
+static int v2_write_dquot(struct dquot *dquot)
+{
+ return qtree_write_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv, dquot);
}
-/* Check whether dquot should not be deleted. We know we are
- * the only one operating on dquot (thanks to dq_lock) */
static int v2_release_dquot(struct dquot *dquot)
{
- if (test_bit(DQ_FAKE_B, &dquot->dq_flags) && !(dquot->dq_dqb.dqb_curinodes | dquot->dq_dqb.dqb_curspace))
- return v2_delete_dquot(dquot);
+ return qtree_release_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv, dquot);
+}
+
+static int v2_free_file_info(struct super_block *sb, int type)
+{
+ kfree(sb_dqinfo(sb, type)->dqi_priv);
return 0;
}
@@ -673,7 +210,7 @@ static struct quota_format_ops v2_format_ops = {
.check_quota_file = v2_check_quota_file,
.read_file_info = v2_read_file_info,
.write_file_info = v2_write_file_info,
- .free_file_info = NULL,
+ .free_file_info = v2_free_file_info,
.read_dqblk = v2_read_dquot,
.commit_dqblk = v2_write_dquot,
.release_dqblk = v2_release_dquot,
diff --git a/include/linux/quotaio_v1.h b/fs/quotaio_v1.h
similarity index 100%
rename from include/linux/quotaio_v1.h
rename to fs/quotaio_v1.h
diff --git a/include/linux/quotaio_v2.h b/fs/quotaio_v2.h
similarity index 68%
rename from include/linux/quotaio_v2.h
rename to fs/quotaio_v2.h
index 303d7cbe30d4..530fe580685c 100644
--- a/include/linux/quotaio_v2.h
+++ b/fs/quotaio_v2.h
@@ -21,6 +21,12 @@
0 /* GRPQUOTA */\
}
+/* First generic header */
+struct v2_disk_dqheader {
+ __le32 dqh_magic; /* Magic number identifying file */
+ __le32 dqh_version; /* File version */
+};
+
/*
* The following structure defines the format of the disk quota file
* (as it appears on disk) - the file is a radix tree whose leaves point
@@ -38,15 +44,6 @@ struct v2_disk_dqblk {
__le64 dqb_itime; /* time limit for excessive inode use */
};
-/*
- * Here are header structures as written on disk and their in-memory copies
- */
-/* First generic header */
-struct v2_disk_dqheader {
- __le32 dqh_magic; /* Magic number identifying file */
- __le32 dqh_version; /* File version */
-};
-
/* Header with type and version specific information */
struct v2_disk_dqinfo {
__le32 dqi_bgrace; /* Time before block soft limit becomes hard limit */
@@ -57,23 +54,7 @@ struct v2_disk_dqinfo {
__le32 dqi_free_entry; /* Number of block with at least one free entry */
};
-/*
- * Structure of header of block with quota structures. It is padded to 16 bytes so
- * there will be space for exactly 21 quota-entries in a block
- */
-struct v2_disk_dqdbheader {
- __le32 dqdh_next_free; /* Number of next block with free entry */
- __le32 dqdh_prev_free; /* Number of previous block with free entry */
- __le16 dqdh_entries; /* Number of valid entries in block */
- __le16 dqdh_pad1;
- __le32 dqdh_pad2;
-};
-
#define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */
-#define V2_DQBLKSIZE_BITS 10
-#define V2_DQBLKSIZE (1 << V2_DQBLKSIZE_BITS) /* Size of block with quota structures */
-#define V2_DQTREEOFF 1 /* Offset of tree in file in blocks */
-#define V2_DQTREEDEPTH 4 /* Depth of quota tree */
-#define V2_DQSTRINBLK ((V2_DQBLKSIZE - sizeof(struct v2_disk_dqdbheader)) / sizeof(struct v2_disk_dqblk)) /* Number of entries in one blocks */
+#define V2_DQBLKSIZE_BITS 10 /* Size of leaf block in tree */
#endif /* _LINUX_QUOTAIO_V2_H */
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 663a91f5dce8..c55651f1407c 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -649,6 +649,8 @@ static struct dquot_operations reiserfs_quota_operations = {
.release_dquot = reiserfs_release_dquot,
.mark_dirty = reiserfs_mark_dquot_dirty,
.write_info = reiserfs_write_info,
+ .alloc_dquot = dquot_alloc,
+ .destroy_dquot = dquot_destroy,
};
static struct quotactl_ops reiserfs_qctl_operations = {
@@ -994,8 +996,7 @@ static int reiserfs_parse_options(struct super_block *s, char *options, /* strin
if (c == 'u' || c == 'g') {
int qtype = c == 'u' ? USRQUOTA : GRPQUOTA;
- if ((sb_any_quota_enabled(s) ||
- sb_any_quota_suspended(s)) &&
+ if (sb_any_quota_loaded(s) &&
(!*arg != !REISERFS_SB(s)->s_qf_names[qtype])) {
reiserfs_warning(s,
"reiserfs_parse_options: cannot change journaled quota options when quota turned on.");
@@ -1041,8 +1042,7 @@ static int reiserfs_parse_options(struct super_block *s, char *options, /* strin
"reiserfs_parse_options: unknown quota format specified.");
return 0;
}
- if ((sb_any_quota_enabled(s) ||
- sb_any_quota_suspended(s)) &&
+ if (sb_any_quota_loaded(s) &&
*qfmt != REISERFS_SB(s)->s_jquota_fmt) {
reiserfs_warning(s,
"reiserfs_parse_options: cannot change journaled quota options when quota turned on.");
@@ -1067,7 +1067,7 @@ static int reiserfs_parse_options(struct super_block *s, char *options, /* strin
}
/* This checking is not precise wrt the quota type but for our purposes it is sufficient */
if (!(*mount_options & (1 << REISERFS_QUOTA))
- && sb_any_quota_enabled(s)) {
+ && sb_any_quota_loaded(s)) {
reiserfs_warning(s,
"reiserfs_parse_options: quota options must be present when quota is turned on.");
return 0;
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 95ac82340c3b..39da666067b9 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -56,8 +56,6 @@ header-y += dlm_device.h
header-y += dlm_netlink.h
header-y += dm-ioctl.h
header-y += dn.h
-header-y += dqblk_v1.h
-header-y += dqblk_v2.h
header-y += dqblk_xfs.h
header-y += efs_fs_sb.h
header-y += elf-fdpic.h
@@ -134,8 +132,6 @@ header-y += posix_types.h
header-y += ppdev.h
header-y += prctl.h
header-y += qnxtypes.h
-header-y += quotaio_v1.h
-header-y += quotaio_v2.h
header-y += radeonfb.h
header-y += raw.h
header-y += resource.h
diff --git a/include/linux/dqblk_qtree.h b/include/linux/dqblk_qtree.h
new file mode 100644
index 000000000000..82a16527b367
--- /dev/null
+++ b/include/linux/dqblk_qtree.h
@@ -0,0 +1,56 @@
+/*
+ * Definitions of structures and functions for quota formats using trie
+ */
+
+#ifndef _LINUX_DQBLK_QTREE_H
+#define _LINUX_DQBLK_QTREE_H
+
+#include <linux/types.h>
+
+/* Numbers of blocks needed for updates - we count with the smallest
+ * possible block size (1024) */
+#define QTREE_INIT_ALLOC 4
+#define QTREE_INIT_REWRITE 2
+#define QTREE_DEL_ALLOC 0
+#define QTREE_DEL_REWRITE 6
+
+struct dquot;
+
+/* Operations */
+struct qtree_fmt_operations {
+ void (*mem2disk_dqblk)(void *disk, struct dquot *dquot); /* Convert given entry from in memory format to disk one */
+ void (*disk2mem_dqblk)(struct dquot *dquot, void *disk); /* Convert given entry from disk format to in memory one */
+ int (*is_id)(void *disk, struct dquot *dquot); /* Is this structure for given id? */
+};
+
+/* Inmemory copy of version specific information */
+struct qtree_mem_dqinfo {
+ struct super_block *dqi_sb; /* Sb quota is on */
+ int dqi_type; /* Quota type */
+ unsigned int dqi_blocks; /* # of blocks in quota file */
+ unsigned int dqi_free_blk; /* First block in list of free blocks */
+ unsigned int dqi_free_entry; /* First block with free entry */
+ unsigned int dqi_blocksize_bits; /* Block size of quota file */
+ unsigned int dqi_entry_size; /* Size of quota entry in quota file */
+ unsigned int dqi_usable_bs; /* Space usable in block for quota data */
+ unsigned int dqi_qtree_depth; /* Precomputed depth of quota tree */
+ struct qtree_fmt_operations *dqi_ops; /* Operations for entry manipulation */
+};
+
+int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot);
+int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot);
+int qtree_delete_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot);
+int qtree_release_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot);
+int qtree_entry_unused(struct qtree_mem_dqinfo *info, char *disk);
+static inline int qtree_depth(struct qtree_mem_dqinfo *info)
+{
+ unsigned int epb = info->dqi_usable_bs >> 2;
+ unsigned long long entries = epb;
+ int i;
+
+ for (i = 1; entries < (1ULL << 32); i++)
+ entries *= epb;
+ return i;
+}
+
+#endif /* _LINUX_DQBLK_QTREE_H */
diff --git a/include/linux/dqblk_v1.h b/include/linux/dqblk_v1.h
index 57f1250d5a52..3713a7232dd8 100644
--- a/include/linux/dqblk_v1.h
+++ b/include/linux/dqblk_v1.h
@@ -5,9 +5,6 @@
#ifndef _LINUX_DQBLK_V1_H
#define _LINUX_DQBLK_V1_H
-/* Id of quota format */
-#define QFMT_VFS_OLD 1
-
/* Root squash turned on */
#define V1_DQF_RSQUASH 1
@@ -17,8 +14,4 @@
#define V1_DEL_ALLOC 0
#define V1_DEL_REWRITE 2
-/* Special information about quotafile */
-struct v1_mem_dqinfo {
-};
-
#endif /* _LINUX_DQBLK_V1_H */
diff --git a/include/linux/dqblk_v2.h b/include/linux/dqblk_v2.h
index 4f853322cb7f..18000a542677 100644
--- a/include/linux/dqblk_v2.h
+++ b/include/linux/dqblk_v2.h
@@ -1,26 +1,16 @@
/*
- * Definitions of structures for vfsv0 quota format
+ * Definitions for vfsv0 quota format
*/
#ifndef _LINUX_DQBLK_V2_H
#define _LINUX_DQBLK_V2_H
-#include <linux/types.h>
-
-/* id numbers of quota format */
-#define QFMT_VFS_V0 2
+#include <linux/dqblk_qtree.h>
/* Numbers of blocks needed for updates */
-#define V2_INIT_ALLOC 4
-#define V2_INIT_REWRITE 2
-#define V2_DEL_ALLOC 0
-#define V2_DEL_REWRITE 6
-
-/* Inmemory copy of version specific information */
-struct v2_mem_dqinfo {
- unsigned int dqi_blocks;
- unsigned int dqi_free_blk;
- unsigned int dqi_free_entry;
-};
+#define V2_INIT_ALLOC QTREE_INIT_ALLOC
+#define V2_INIT_REWRITE QTREE_INIT_REWRITE
+#define V2_DEL_ALLOC QTREE_DEL_ALLOC
+#define V2_DEL_REWRITE QTREE_DEL_REWRITE
#endif /* _LINUX_DQBLK_V2_H */
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index c7d106ef22e2..34456476e761 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -329,6 +329,7 @@ enum jbd_state_bits {
BH_State, /* Pins most journal_head state */
BH_JournalHead, /* Pins bh->b_private and jh->b_bh */
BH_Unshadow, /* Dummy bit, for BJ_Shadow wakeup filtering */
+ BH_JBDPrivateStart, /* First bit available for private use by FS */
};
BUFFER_FNS(JBD, jbd)
@@ -1007,6 +1008,35 @@ int __jbd2_journal_clean_checkpoint_list(journal_t *journal);
int __jbd2_journal_remove_checkpoint(struct journal_head *);
void __jbd2_journal_insert_checkpoint(struct journal_head *, transaction_t *);
+
+/*
+ * Triggers
+ */
+
+struct jbd2_buffer_trigger_type {
+ /*
+ * Fired just before a buffer is written to the journal.
+ * mapped_data is a mapped buffer that is the frozen data for
+ * commit.
+ */
+ void (*t_commit)(struct jbd2_buffer_trigger_type *type,
+ struct buffer_head *bh, void *mapped_data,
+ size_t size);
+
+ /*
+ * Fired during journal abort for dirty buffers that will not be
+ * committed.
+ */
+ void (*t_abort)(struct jbd2_buffer_trigger_type *type,
+ struct buffer_head *bh);
+};
+
+extern void jbd2_buffer_commit_trigger(struct journal_head *jh,
+ void *mapped_data,
+ struct jbd2_buffer_trigger_type *triggers);
+extern void jbd2_buffer_abort_trigger(struct journal_head *jh,
+ struct jbd2_buffer_trigger_type *triggers);
+
/* Buffer IO */
extern int
jbd2_journal_write_metadata_buffer(transaction_t *transaction,
@@ -1045,6 +1075,8 @@ extern int jbd2_journal_extend (handle_t *, int nblocks);
extern int jbd2_journal_get_write_access(handle_t *, struct buffer_head *);
extern int jbd2_journal_get_create_access (handle_t *, struct buffer_head *);
extern int jbd2_journal_get_undo_access(handle_t *, struct buffer_head *);
+void jbd2_journal_set_triggers(struct buffer_head *,
+ struct jbd2_buffer_trigger_type *type);
extern int jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *);
extern void jbd2_journal_release_buffer (handle_t *, struct buffer_head *);
extern int jbd2_journal_forget (handle_t *, struct buffer_head *);
diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h
index bb70ebb6a2d5..525aac3c97df 100644
--- a/include/linux/journal-head.h
+++ b/include/linux/journal-head.h
@@ -12,6 +12,8 @@
typedef unsigned int tid_t; /* Unique transaction ID */
typedef struct transaction_s transaction_t; /* Compound transaction type */
+
+
struct buffer_head;
struct journal_head {
@@ -87,6 +89,12 @@ struct journal_head {
* [j_list_lock]
*/
struct journal_head *b_cpnext, *b_cpprev;
+
+ /* Trigger type */
+ struct jbd2_buffer_trigger_type *b_triggers;
+
+ /* Trigger type for the committing transaction's frozen data */
+ struct jbd2_buffer_trigger_type *b_frozen_triggers;
};
#endif /* JOURNAL_HEAD_H_INCLUDED */
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 40401b554484..d72d5d84fde5 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -36,17 +36,7 @@
#include <linux/errno.h>
#include <linux/types.h>
-#define __DQUOT_VERSION__ "dquot_6.5.1"
-#define __DQUOT_NUM_VERSION__ 6*10000+5*100+1
-
-/* Size of blocks in which are counted size limits */
-#define QUOTABLOCK_BITS 10
-#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
-
-/* Conversion routines from and to quota blocks */
-#define qb2kb(x) ((x) << (QUOTABLOCK_BITS-10))
-#define kb2qb(x) ((x) >> (QUOTABLOCK_BITS-10))
-#define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
+#define __DQUOT_VERSION__ "dquot_6.5.2"
#define MAXQUOTAS 2
#define USRQUOTA 0 /* element used for user quotas */
@@ -80,16 +70,34 @@
#define Q_GETQUOTA 0x800007 /* get user quota structure */
#define Q_SETQUOTA 0x800008 /* set user quota structure */
+/* Quota format type IDs */
+#define QFMT_VFS_OLD 1
+#define QFMT_VFS_V0 2
+
+/* Size of block in which space limits are passed through the quota
+ * interface */
+#define QIF_DQBLKSIZE_BITS 10
+#define QIF_DQBLKSIZE (1 << QIF_DQBLKSIZE_BITS)
+
/*
* Quota structure used for communication with userspace via quotactl
* Following flags are used to specify which fields are valid
*/
-#define QIF_BLIMITS 1
-#define QIF_SPACE 2
-#define QIF_ILIMITS 4
-#define QIF_INODES 8
-#define QIF_BTIME 16
-#define QIF_ITIME 32
+enum {
+ QIF_BLIMITS_B = 0,
+ QIF_SPACE_B,
+ QIF_ILIMITS_B,
+ QIF_INODES_B,
+ QIF_BTIME_B,
+ QIF_ITIME_B,
+};
+
+#define QIF_BLIMITS (1 << QIF_BLIMITS_B)
+#define QIF_SPACE (1 << QIF_SPACE_B)
+#define QIF_ILIMITS (1 << QIF_ILIMITS_B)
+#define QIF_INODES (1 << QIF_INODES_B)
+#define QIF_BTIME (1 << QIF_BTIME_B)
+#define QIF_ITIME (1 << QIF_ITIME_B)
#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
#define QIF_USAGE (QIF_SPACE | QIF_INODES)
#define QIF_TIMES (QIF_BTIME | QIF_ITIME)
@@ -172,7 +180,7 @@ enum {
#include <asm/atomic.h>
typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */
-typedef __u64 qsize_t; /* Type in which we store sizes */
+typedef long long qsize_t; /* Type in which we store sizes */
extern spinlock_t dq_data_lock;
@@ -187,12 +195,12 @@ extern spinlock_t dq_data_lock;
* Data for one user/group kept in memory
*/
struct mem_dqblk {
- __u32 dqb_bhardlimit; /* absolute limit on disk blks alloc */
- __u32 dqb_bsoftlimit; /* preferred limit on disk blks */
+ qsize_t dqb_bhardlimit; /* absolute limit on disk blks alloc */
+ qsize_t dqb_bsoftlimit; /* preferred limit on disk blks */
qsize_t dqb_curspace; /* current used space */
- __u32 dqb_ihardlimit; /* absolute limit on allocated inodes */
- __u32 dqb_isoftlimit; /* preferred inode limit */
- __u32 dqb_curinodes; /* current # allocated inodes */
+ qsize_t dqb_ihardlimit; /* absolute limit on allocated inodes */
+ qsize_t dqb_isoftlimit; /* preferred inode limit */
+ qsize_t dqb_curinodes; /* current # allocated inodes */
time_t dqb_btime; /* time limit for excessive disk use */
time_t dqb_itime; /* time limit for excessive inode use */
};
@@ -212,10 +220,7 @@ struct mem_dqinfo {
unsigned int dqi_igrace;
qsize_t dqi_maxblimit;
qsize_t dqi_maxilimit;
- union {
- struct v1_mem_dqinfo v1_i;
- struct v2_mem_dqinfo v2_i;
- } u;
+ void *dqi_priv;
};
struct super_block;
@@ -249,6 +254,11 @@ extern struct dqstats dqstats;
#define DQ_FAKE_B 3 /* no limits only usage */
#define DQ_READ_B 4 /* dquot was read into memory */
#define DQ_ACTIVE_B 5 /* dquot is active (dquot_release not called) */
+#define DQ_LASTSET_B 6 /* Following 6 bits (see QIF_) are reserved\
+ * for the mask of entries set via SETQUOTA\
+ * quotactl. They are set under dq_data_lock\
+ * and the quota format handling dquot can\
+ * clear them when it sees fit. */
struct dquot {
struct hlist_node dq_hash; /* Hash list in memory */
@@ -287,11 +297,13 @@ struct dquot_operations {
int (*initialize) (struct inode *, int);
int (*drop) (struct inode *);
int (*alloc_space) (struct inode *, qsize_t, int);
- int (*alloc_inode) (const struct inode *, unsigned long);
+ int (*alloc_inode) (const struct inode *, qsize_t);
int (*free_space) (struct inode *, qsize_t);
- int (*free_inode) (const struct inode *, unsigned long);
+ int (*free_inode) (const struct inode *, qsize_t);
int (*transfer) (struct inode *, struct iattr *);
int (*write_dquot) (struct dquot *); /* Ordinary dquot write */
+ struct dquot *(*alloc_dquot)(struct super_block *, int); /* Allocate memory for new dquot */
+ void (*destroy_dquot)(struct dquot *); /* Free memory for dquot */
int (*acquire_dquot) (struct dquot *); /* Quota is going to be created on disk */
int (*release_dquot) (struct dquot *); /* Quota is going to be deleted from disk */
int (*mark_dirty) (struct dquot *); /* Dquot is marked dirty */
@@ -320,12 +332,42 @@ struct quota_format_type {
struct quota_format_type *qf_next;
};
-#define DQUOT_USR_ENABLED 0x01 /* User diskquotas enabled */
-#define DQUOT_GRP_ENABLED 0x02 /* Group diskquotas enabled */
-#define DQUOT_USR_SUSPENDED 0x04 /* User diskquotas are off, but
+/* Quota state flags - they actually come in two flavors - for users and groups */
+enum {
+ _DQUOT_USAGE_ENABLED = 0, /* Track disk usage for users */
+ _DQUOT_LIMITS_ENABLED, /* Enforce quota limits for users */
+ _DQUOT_SUSPENDED, /* User diskquotas are off, but
* we have necessary info in
* memory to turn them on */
-#define DQUOT_GRP_SUSPENDED 0x08 /* The same for group quotas */
+ _DQUOT_STATE_FLAGS
+};
+#define DQUOT_USAGE_ENABLED (1 << _DQUOT_USAGE_ENABLED)
+#define DQUOT_LIMITS_ENABLED (1 << _DQUOT_LIMITS_ENABLED)
+#define DQUOT_SUSPENDED (1 << _DQUOT_SUSPENDED)
+#define DQUOT_STATE_FLAGS (DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED | \
+ DQUOT_SUSPENDED)
+/* Other quota flags */
+#define DQUOT_QUOTA_SYS_FILE (1 << 6) /* Quota file is a special
+ * system file and user cannot
+ * touch it. Filesystem is
+ * responsible for setting
+ * S_NOQUOTA, S_NOATIME flags
+ */
+#define DQUOT_NEGATIVE_USAGE (1 << 7) /* Allow negative quota usage */
+
+static inline unsigned int dquot_state_flag(unsigned int flags, int type)
+{
+ if (type == USRQUOTA)
+ return flags;
+ return flags << _DQUOT_STATE_FLAGS;
+}
+
+static inline unsigned int dquot_generic_flag(unsigned int flags, int type)
+{
+ if (type == USRQUOTA)
+ return flags;
+ return flags >> _DQUOT_STATE_FLAGS;
+}
struct quota_info {
unsigned int flags; /* Flags for diskquotas on this device */
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index a558a4c1d35a..21b781a3350f 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -24,12 +24,21 @@ void sync_dquots(struct super_block *sb, int type);
int dquot_initialize(struct inode *inode, int type);
int dquot_drop(struct inode *inode);
+int dquot_drop_locked(struct inode *inode);
+struct dquot *dqget(struct super_block *sb, unsigned int id, int type);
+void dqput(struct dquot *dquot);
+int dquot_is_cached(struct super_block *sb, unsigned int id, int type);
+int dquot_scan_active(struct super_block *sb,
+ int (*fn)(struct dquot *dquot, unsigned long priv),
+ unsigned long priv);
+struct dquot *dquot_alloc(struct super_block *sb, int type);
+void dquot_destroy(struct dquot *dquot);
int dquot_alloc_space(struct inode *inode, qsize_t number, int prealloc);
-int dquot_alloc_inode(const struct inode *inode, unsigned long number);
+int dquot_alloc_inode(const struct inode *inode, qsize_t number);
int dquot_free_space(struct inode *inode, qsize_t number);
-int dquot_free_inode(const struct inode *inode, unsigned long number);
+int dquot_free_inode(const struct inode *inode, qsize_t number);
int dquot_transfer(struct inode *inode, struct iattr *iattr);
int dquot_commit(struct dquot *dquot);
@@ -40,11 +49,14 @@ int dquot_mark_dquot_dirty(struct dquot *dquot);
int vfs_quota_on(struct super_block *sb, int type, int format_id,
char *path, int remount);
+int vfs_quota_enable(struct inode *inode, int type, int format_id,
+ unsigned int flags);
int vfs_quota_on_path(struct super_block *sb, int type, int format_id,
struct path *path);
int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
int format_id, int type);
int vfs_quota_off(struct super_block *sb, int type, int remount);
+int vfs_quota_disable(struct super_block *sb, int type, unsigned int flags);
int vfs_quota_sync(struct super_block *sb, int type);
int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
@@ -64,24 +76,22 @@ static inline struct mem_dqinfo *sb_dqinfo(struct super_block *sb, int type)
* Functions for checking status of quota
*/
-static inline int sb_has_quota_enabled(struct super_block *sb, int type)
+static inline int sb_has_quota_usage_enabled(struct super_block *sb, int type)
{
- if (type == USRQUOTA)
- return sb_dqopt(sb)->flags & DQUOT_USR_ENABLED;
- return sb_dqopt(sb)->flags & DQUOT_GRP_ENABLED;
+ return sb_dqopt(sb)->flags &
+ dquot_state_flag(DQUOT_USAGE_ENABLED, type);
}
-static inline int sb_any_quota_enabled(struct super_block *sb)
+static inline int sb_has_quota_limits_enabled(struct super_block *sb, int type)
{
- return sb_has_quota_enabled(sb, USRQUOTA) ||
- sb_has_quota_enabled(sb, GRPQUOTA);
+ return sb_dqopt(sb)->flags &
+ dquot_state_flag(DQUOT_LIMITS_ENABLED, type);
}
static inline int sb_has_quota_suspended(struct super_block *sb, int type)
{
- if (type == USRQUOTA)
- return sb_dqopt(sb)->flags & DQUOT_USR_SUSPENDED;
- return sb_dqopt(sb)->flags & DQUOT_GRP_SUSPENDED;
+ return sb_dqopt(sb)->flags &
+ dquot_state_flag(DQUOT_SUSPENDED, type);
}
static inline int sb_any_quota_suspended(struct super_block *sb)
@@ -90,6 +100,31 @@ static inline int sb_any_quota_suspended(struct super_block *sb)
sb_has_quota_suspended(sb, GRPQUOTA);
}
+/* Does kernel know about any quota information for given sb + type? */
+static inline int sb_has_quota_loaded(struct super_block *sb, int type)
+{
+ /* Currently if anything is on, then quota usage is on as well */
+ return sb_has_quota_usage_enabled(sb, type);
+}
+
+static inline int sb_any_quota_loaded(struct super_block *sb)
+{
+ return sb_has_quota_loaded(sb, USRQUOTA) ||
+ sb_has_quota_loaded(sb, GRPQUOTA);
+}
+
+static inline int sb_has_quota_active(struct super_block *sb, int type)
+{
+ return sb_has_quota_loaded(sb, type) &&
+ !sb_has_quota_suspended(sb, type);
+}
+
+static inline int sb_any_quota_active(struct super_block *sb)
+{
+ return sb_has_quota_active(sb, USRQUOTA) ||
+ sb_has_quota_active(sb, GRPQUOTA);
+}
+
/*
* Operations supported for diskquotas.
*/
@@ -104,7 +139,7 @@ extern struct quotactl_ops vfs_quotactl_ops;
static inline void vfs_dq_init(struct inode *inode)
{
BUG_ON(!inode->i_sb);
- if (sb_any_quota_enabled(inode->i_sb) && !IS_NOQUOTA(inode))
+ if (sb_any_quota_active(inode->i_sb) && !IS_NOQUOTA(inode))
inode->i_sb->dq_op->initialize(inode, -1);
}
@@ -112,7 +147,7 @@ static inline void vfs_dq_init(struct inode *inode)
* a transaction (deadlocks possible otherwise) */
static inline int vfs_dq_prealloc_space_nodirty(struct inode *inode, qsize_t nr)
{
- if (sb_any_quota_enabled(inode->i_sb)) {
+ if (sb_any_quota_active(inode->i_sb)) {
/* Used space is updated in alloc_space() */
if (inode->i_sb->dq_op->alloc_space(inode, nr, 1) == NO_QUOTA)
return 1;
@@ -132,7 +167,7 @@ static inline int vfs_dq_prealloc_space(struct inode *inode, qsize_t nr)
static inline int vfs_dq_alloc_space_nodirty(struct inode *inode, qsize_t nr)
{
- if (sb_any_quota_enabled(inode->i_sb)) {
+ if (sb_any_quota_active(inode->i_sb)) {
/* Used space is updated in alloc_space() */
if (inode->i_sb->dq_op->alloc_space(inode, nr, 0) == NO_QUOTA)
return 1;
@@ -152,7 +187,7 @@ static inline int vfs_dq_alloc_space(struct inode *inode, qsize_t nr)
static inline int vfs_dq_alloc_inode(struct inode *inode)
{
- if (sb_any_quota_enabled(inode->i_sb)) {
+ if (sb_any_quota_active(inode->i_sb)) {
vfs_dq_init(inode);
if (inode->i_sb->dq_op->alloc_inode(inode, 1) == NO_QUOTA)
return 1;
@@ -162,7 +197,7 @@ static inline int vfs_dq_alloc_inode(struct inode *inode)
static inline void vfs_dq_free_space_nodirty(struct inode *inode, qsize_t nr)
{
- if (sb_any_quota_enabled(inode->i_sb))
+ if (sb_any_quota_active(inode->i_sb))
inode->i_sb->dq_op->free_space(inode, nr);
else
inode_sub_bytes(inode, nr);
@@ -176,7 +211,7 @@ static inline void vfs_dq_free_space(struct inode *inode, qsize_t nr)
static inline void vfs_dq_free_inode(struct inode *inode)
{
- if (sb_any_quota_enabled(inode->i_sb))
+ if (sb_any_quota_active(inode->i_sb))
inode->i_sb->dq_op->free_inode(inode, 1);
}
@@ -197,12 +232,12 @@ static inline int vfs_dq_off(struct super_block *sb, int remount)
#else
-static inline int sb_has_quota_enabled(struct super_block *sb, int type)
+static inline int sb_has_quota_usage_enabled(struct super_block *sb, int type)
{
return 0;
}
-static inline int sb_any_quota_enabled(struct super_block *sb)
+static inline int sb_has_quota_limits_enabled(struct super_block *sb, int type)
{
return 0;
}
@@ -217,6 +252,27 @@ static inline int sb_any_quota_suspended(struct super_block *sb)
return 0;
}
+/* Does kernel know about any quota information for given sb + type? */
+static inline int sb_has_quota_loaded(struct super_block *sb, int type)
+{
+ return 0;
+}
+
+static inline int sb_any_quota_loaded(struct super_block *sb)
+{
+ return 0;
+}
+
+static inline int sb_has_quota_active(struct super_block *sb, int type)
+{
+ return 0;
+}
+
+static inline int sb_any_quota_active(struct super_block *sb)
+{
+ return 0;
+}
+
/*
* NO-OP when quota not configured.
*/