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Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw:
  GFS2: Fix typo
  GFS2: stuck in inode wait, no glocks stuck
  GFS2: Eliminate useless err variable
  GFS2: Fix writing to non-page aligned gfs2_quota structures
  GFS2: Add some useful messages
  GFS2: fix quota state reporting
  GFS2: Various gfs2_logd improvements
  GFS2: glock livelock
  GFS2: Clean up stuffed file copying
  GFS2: docs update
  GFS2: Remove space from slab cache name
This commit is contained in:
Linus Torvalds 2010-05-21 07:29:15 -07:00
commit 677abe49ad
20 changed files with 369 additions and 186 deletions
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12
Documentation/filesystems/gfs2.txt
View File

@ -1,7 +1,7 @@
Global File System
------------------
http://sources.redhat.com/cluster/
http://sources.redhat.com/cluster/wiki/
GFS is a cluster file system. It allows a cluster of computers to
simultaneously use a block device that is shared between them (with FC,
@ -36,11 +36,11 @@ GFS2 is not on-disk compatible with previous versions of GFS, but it
is pretty close.
The following man pages can be found at the URL above:
fsck.gfs2 to repair a filesystem
gfs2_grow to expand a filesystem online
gfs2_jadd to add journals to a filesystem online
gfs2_tool to manipulate, examine and tune a filesystem
fsck.gfs2 to repair a filesystem
gfs2_grow to expand a filesystem online
gfs2_jadd to add journals to a filesystem online
gfs2_tool to manipulate, examine and tune a filesystem
gfs2_quota to examine and change quota values in a filesystem
gfs2_convert to convert a gfs filesystem to gfs2 in-place
mount.gfs2 to help mount(8) mount a filesystem
mkfs.gfs2 to make a filesystem
mkfs.gfs2 to make a filesystem

8
fs/gfs2/aops.c
View File

@ -418,6 +418,7 @@ static int gfs2_jdata_writepages(struct address_space *mapping,
static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)
{
struct buffer_head *dibh;
u64 dsize = i_size_read(&ip->i_inode);
void *kaddr;
int error;
@ -437,9 +438,10 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)
return error;
kaddr = kmap_atomic(page, KM_USER0);
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
ip->i_disksize);
memset(kaddr + ip->i_disksize, 0, PAGE_CACHE_SIZE - ip->i_disksize);
if (dsize > (dibh->b_size - sizeof(struct gfs2_dinode)))
dsize = (dibh->b_size - sizeof(struct gfs2_dinode));
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize);
memset(kaddr + dsize, 0, PAGE_CACHE_SIZE - dsize);
kunmap_atomic(kaddr, KM_USER0);
flush_dcache_page(page);
brelse(dibh);

17
fs/gfs2/bmap.c
View File

@ -71,11 +71,13 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
if (!PageUptodate(page)) {
void *kaddr = kmap(page);
u64 dsize = i_size_read(inode);
if (dsize > (dibh->b_size - sizeof(struct gfs2_dinode)))
dsize = dibh->b_size - sizeof(struct gfs2_dinode);
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
ip->i_disksize);
memset(kaddr + ip->i_disksize, 0,
PAGE_CACHE_SIZE - ip->i_disksize);
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode), dsize);
memset(kaddr + dsize, 0, PAGE_CACHE_SIZE - dsize);
kunmap(page);
SetPageUptodate(page);
@ -1038,13 +1040,14 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
goto out;
if (gfs2_is_stuffed(ip)) {
ip->i_disksize = size;
u64 dsize = size + sizeof(struct gfs2_inode);
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode) + size);
if (dsize > dibh->b_size)
dsize = dibh->b_size;
gfs2_buffer_clear_tail(dibh, dsize);
error = 1;
} else {
if (size & (u64)(sdp->sd_sb.sb_bsize - 1))
error = gfs2_block_truncate_page(ip->i_inode.i_mapping);

2
fs/gfs2/dir.c
View File

@ -1475,7 +1475,7 @@ struct inode *gfs2_dir_search(struct inode *dir, const struct qstr *name)
inode = gfs2_inode_lookup(dir->i_sb,
be16_to_cpu(dent->de_type),
be64_to_cpu(dent->de_inum.no_addr),
be64_to_cpu(dent->de_inum.no_formal_ino), 0);
be64_to_cpu(dent->de_inum.no_formal_ino));
brelse(bh);
return inode;
}

2
fs/gfs2/export.c
View File

@ -168,7 +168,7 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
if (error)
goto fail;
inode = gfs2_inode_lookup(sb, DT_UNKNOWN, inum->no_addr, 0, 0);
inode = gfs2_inode_lookup(sb, DT_UNKNOWN, inum->no_addr, 0);
if (IS_ERR(inode)) {
error = PTR_ERR(inode);
goto fail;

3
fs/gfs2/glock.c
View File

@ -855,6 +855,9 @@ void gfs2_holder_reinit(unsigned int state, unsigned flags, struct gfs2_holder *
gh->gh_flags = flags;
gh->gh_iflags = 0;
gh->gh_ip = (unsigned long)__builtin_return_address(0);
if (gh->gh_owner_pid)
put_pid(gh->gh_owner_pid);
gh->gh_owner_pid = get_pid(task_pid(current));
}
/**

11
fs/gfs2/incore.h
View File

@ -439,9 +439,6 @@ struct gfs2_args {
struct gfs2_tune {
spinlock_t gt_spin;
unsigned int gt_incore_log_blocks;
unsigned int gt_log_flush_secs;
unsigned int gt_logd_secs;
unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
@ -462,6 +459,7 @@ enum {
SDF_SHUTDOWN = 2,
SDF_NOBARRIERS = 3,
SDF_NORECOVERY = 4,
SDF_DEMOTE = 5,
};
#define GFS2_FSNAME_LEN 256
@ -618,6 +616,7 @@ struct gfs2_sbd {
unsigned int sd_log_commited_databuf;
int sd_log_commited_revoke;
atomic_t sd_log_pinned;
unsigned int sd_log_num_buf;
unsigned int sd_log_num_revoke;
unsigned int sd_log_num_rg;
@ -629,15 +628,17 @@ struct gfs2_sbd {
struct list_head sd_log_le_databuf;
struct list_head sd_log_le_ordered;
atomic_t sd_log_thresh1;
atomic_t sd_log_thresh2;
atomic_t sd_log_blks_free;
struct mutex sd_log_reserve_mutex;
wait_queue_head_t sd_log_waitq;
wait_queue_head_t sd_logd_waitq;
u64 sd_log_sequence;
unsigned int sd_log_head;
unsigned int sd_log_tail;
int sd_log_idle;
unsigned long sd_log_flush_time;
struct rw_semaphore sd_log_flush_lock;
atomic_t sd_log_in_flight;
wait_queue_head_t sd_log_flush_wait;

101
fs/gfs2/inode.c
View File

@ -158,7 +158,6 @@ void gfs2_set_iop(struct inode *inode)
* @sb: The super block
* @no_addr: The inode number
* @type: The type of the inode
* @skip_freeing: set this not return an inode if it is currently being freed.
*
* Returns: A VFS inode, or an error
*/
@ -166,17 +165,14 @@ void gfs2_set_iop(struct inode *inode)
struct inode *gfs2_inode_lookup(struct super_block *sb,
unsigned int type,
u64 no_addr,
u64 no_formal_ino, int skip_freeing)
u64 no_formal_ino)
{
struct inode *inode;
struct gfs2_inode *ip;
struct gfs2_glock *io_gl;
int error;
if (skip_freeing)
inode = gfs2_iget_skip(sb, no_addr);
else
inode = gfs2_iget(sb, no_addr);
inode = gfs2_iget(sb, no_addr);
ip = GFS2_I(inode);
if (!inode)
@ -233,12 +229,99 @@ fail_glock:
gfs2_glock_dq(&ip->i_iopen_gh);
fail_iopen:
gfs2_glock_put(io_gl);
fail_put:
if (inode->i_state & I_NEW)
ip->i_gl->gl_object = NULL;
gfs2_glock_put(ip->i_gl);
fail:
if (inode->i_state & I_NEW)
iget_failed(inode);
else
iput(inode);
return ERR_PTR(error);
}
/**
* gfs2_unlinked_inode_lookup - Lookup an unlinked inode for reclamation
* @sb: The super block
* no_addr: The inode number
* @@inode: A pointer to the inode found, if any
*
* Returns: 0 and *inode if no errors occurred. If an error occurs,
* the resulting *inode may or may not be NULL.
*/
int gfs2_unlinked_inode_lookup(struct super_block *sb, u64 no_addr,
struct inode **inode)
{
struct gfs2_sbd *sdp;
struct gfs2_inode *ip;
struct gfs2_glock *io_gl;
int error;
struct gfs2_holder gh;
*inode = gfs2_iget_skip(sb, no_addr);
if (!(*inode))
return -ENOBUFS;
if (!((*inode)->i_state & I_NEW))
return -ENOBUFS;
ip = GFS2_I(*inode);
sdp = GFS2_SB(*inode);
ip->i_no_formal_ino = -1;
error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl);
if (unlikely(error))
goto fail;
ip->i_gl->gl_object = ip;
error = gfs2_glock_get(sdp, no_addr, &gfs2_iopen_glops, CREATE, &io_gl);
if (unlikely(error))
goto fail_put;
set_bit(GIF_INVALID, &ip->i_flags);
error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, LM_FLAG_TRY | GL_EXACT,
&ip->i_iopen_gh);
if (unlikely(error)) {
if (error == GLR_TRYFAILED)
error = 0;
goto fail_iopen;
}
ip->i_iopen_gh.gh_gl->gl_object = ip;
gfs2_glock_put(io_gl);
(*inode)->i_mode = DT2IF(DT_UNKNOWN);
/*
* We must read the inode in order to work out its type in
* this case. Note that this doesn't happen often as we normally
* know the type beforehand. This code path only occurs during
* unlinked inode recovery (where it is safe to do this glock,
* which is not true in the general case).
*/
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, LM_FLAG_TRY,
&gh);
if (unlikely(error)) {
if (error == GLR_TRYFAILED)
error = 0;
goto fail_glock;
}
/* Inode is now uptodate */
gfs2_glock_dq_uninit(&gh);
gfs2_set_iop(*inode);
return 0;
fail_glock:
gfs2_glock_dq(&ip->i_iopen_gh);
fail_iopen:
gfs2_glock_put(io_gl);
fail_put:
ip->i_gl->gl_object = NULL;
gfs2_glock_put(ip->i_gl);
fail:
iget_failed(inode);
return ERR_PTR(error);
return error;
}
static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
@ -862,7 +945,7 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
goto fail_gunlock2;
inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr,
inum.no_formal_ino, 0);
inum.no_formal_ino);
if (IS_ERR(inode))
goto fail_gunlock2;

5
fs/gfs2/inode.h
View File

@ -83,8 +83,9 @@ static inline void gfs2_inum_out(const struct gfs2_inode *ip,
extern void gfs2_set_iop(struct inode *inode);
extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
u64 no_addr, u64 no_formal_ino,
int skip_freeing);
u64 no_addr, u64 no_formal_ino);
extern int gfs2_unlinked_inode_lookup(struct super_block *sb, u64 no_addr,
struct inode **inode);
extern struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
extern int gfs2_inode_refresh(struct gfs2_inode *ip);

160
fs/gfs2/log.c
View File

@ -168,12 +168,11 @@ static int gfs2_ail1_empty_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai, int fl
return list_empty(&ai->ai_ail1_list);
}
static void gfs2_ail1_start(struct gfs2_sbd *sdp, int flags)
static void gfs2_ail1_start(struct gfs2_sbd *sdp)
{
struct list_head *head;
u64 sync_gen;
struct list_head *first;
struct gfs2_ail *first_ai, *ai, *tmp;
struct gfs2_ail *ai;
int done = 0;
gfs2_log_lock(sdp);
@ -184,21 +183,9 @@ static void gfs2_ail1_start(struct gfs2_sbd *sdp, int flags)
}
sync_gen = sdp->sd_ail_sync_gen++;
first = head->prev;
first_ai = list_entry(first, struct gfs2_ail, ai_list);
first_ai->ai_sync_gen = sync_gen;
gfs2_ail1_start_one(sdp, first_ai); /* This may drop log lock */
if (flags & DIO_ALL)
first = NULL;
while(!done) {
if (first && (head->prev != first ||
gfs2_ail1_empty_one(sdp, first_ai, 0)))
break;
done = 1;
list_for_each_entry_safe_reverse(ai, tmp, head, ai_list) {
list_for_each_entry_reverse(ai, head, ai_list) {
if (ai->ai_sync_gen >= sync_gen)
continue;
ai->ai_sync_gen = sync_gen;
@ -290,58 +277,57 @@ static void ail2_empty(struct gfs2_sbd *sdp, unsigned int new_tail)
* flush time, so we ensure that we have just enough free blocks at all
* times to avoid running out during a log flush.
*
* We no longer flush the log here, instead we wake up logd to do that
* for us. To avoid the thundering herd and to ensure that we deal fairly
* with queued waiters, we use an exclusive wait. This means that when we
* get woken with enough journal space to get our reservation, we need to
* wake the next waiter on the list.
*
* Returns: errno
*/
int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks)
{
unsigned int try = 0;
unsigned reserved_blks = 6 * (4096 / sdp->sd_vfs->s_blocksize);
unsigned wanted = blks + reserved_blks;
DEFINE_WAIT(wait);
int did_wait = 0;
unsigned int free_blocks;
if (gfs2_assert_warn(sdp, blks) ||
gfs2_assert_warn(sdp, blks <= sdp->sd_jdesc->jd_blocks))
return -EINVAL;
mutex_lock(&sdp->sd_log_reserve_mutex);
gfs2_log_lock(sdp);
while(atomic_read(&sdp->sd_log_blks_free) <= (blks + reserved_blks)) {
gfs2_log_unlock(sdp);
gfs2_ail1_empty(sdp, 0);
gfs2_log_flush(sdp, NULL);
if (try++)
gfs2_ail1_start(sdp, 0);
gfs2_log_lock(sdp);
retry:
free_blocks = atomic_read(&sdp->sd_log_blks_free);
if (unlikely(free_blocks <= wanted)) {
do {
prepare_to_wait_exclusive(&sdp->sd_log_waitq, &wait,
TASK_UNINTERRUPTIBLE);
wake_up(&sdp->sd_logd_waitq);
did_wait = 1;
if (atomic_read(&sdp->sd_log_blks_free) <= wanted)
io_schedule();
free_blocks = atomic_read(&sdp->sd_log_blks_free);
} while(free_blocks <= wanted);
finish_wait(&sdp->sd_log_waitq, &wait);
}
atomic_sub(blks, &sdp->sd_log_blks_free);
if (atomic_cmpxchg(&sdp->sd_log_blks_free, free_blocks,
free_blocks - blks) != free_blocks)
goto retry;
trace_gfs2_log_blocks(sdp, -blks);
gfs2_log_unlock(sdp);
mutex_unlock(&sdp->sd_log_reserve_mutex);
/*
* If we waited, then so might others, wake them up _after_ we get
* our share of the log.
*/
if (unlikely(did_wait))
wake_up(&sdp->sd_log_waitq);
down_read(&sdp->sd_log_flush_lock);
return 0;
}
/**
* gfs2_log_release - Release a given number of log blocks
* @sdp: The GFS2 superblock
* @blks: The number of blocks
*
*/
void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
{
gfs2_log_lock(sdp);
atomic_add(blks, &sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, blks);
gfs2_assert_withdraw(sdp,
atomic_read(&sdp->sd_log_blks_free) <= sdp->sd_jdesc->jd_blocks);
gfs2_log_unlock(sdp);
up_read(&sdp->sd_log_flush_lock);
}
static u64 log_bmap(struct gfs2_sbd *sdp, unsigned int lbn)
{
struct gfs2_journal_extent *je;
@ -559,11 +545,10 @@ static void log_pull_tail(struct gfs2_sbd *sdp, unsigned int new_tail)
ail2_empty(sdp, new_tail);
gfs2_log_lock(sdp);
atomic_add(dist, &sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, dist);
gfs2_assert_withdraw(sdp, atomic_read(&sdp->sd_log_blks_free) <= sdp->sd_jdesc->jd_blocks);
gfs2_log_unlock(sdp);
gfs2_assert_withdraw(sdp, atomic_read(&sdp->sd_log_blks_free) <=
sdp->sd_jdesc->jd_blocks);
sdp->sd_log_tail = new_tail;
}
@ -615,6 +600,7 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull)
if (buffer_eopnotsupp(bh)) {
clear_buffer_eopnotsupp(bh);
set_buffer_uptodate(bh);
fs_info(sdp, "barrier sync failed - disabling barriers\n");
set_bit(SDF_NOBARRIERS, &sdp->sd_flags);
lock_buffer(bh);
skip_barrier:
@ -822,6 +808,13 @@ static void buf_lo_incore_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
* @sdp: the filesystem
* @tr: the transaction
*
* We wake up gfs2_logd if the number of pinned blocks exceed thresh1
* or the total number of used blocks (pinned blocks plus AIL blocks)
* is greater than thresh2.
*
* At mount time thresh1 is 1/3rd of journal size, thresh2 is 2/3rd of
* journal size.
*
* Returns: errno
*/
@ -832,10 +825,10 @@ void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
up_read(&sdp->sd_log_flush_lock);
gfs2_log_lock(sdp);
if (sdp->sd_log_num_buf > gfs2_tune_get(sdp, gt_incore_log_blocks))
wake_up_process(sdp->sd_logd_process);
gfs2_log_unlock(sdp);
if (atomic_read(&sdp->sd_log_pinned) > atomic_read(&sdp->sd_log_thresh1) ||
((sdp->sd_jdesc->jd_blocks - atomic_read(&sdp->sd_log_blks_free)) >
atomic_read(&sdp->sd_log_thresh2)))
wake_up(&sdp->sd_logd_waitq);
}
/**
@ -882,13 +875,23 @@ void gfs2_meta_syncfs(struct gfs2_sbd *sdp)
{
gfs2_log_flush(sdp, NULL);
for (;;) {
gfs2_ail1_start(sdp, DIO_ALL);
gfs2_ail1_start(sdp);
if (gfs2_ail1_empty(sdp, DIO_ALL))
break;
msleep(10);
}
}
static inline int gfs2_jrnl_flush_reqd(struct gfs2_sbd *sdp)
{
return (atomic_read(&sdp->sd_log_pinned) >= atomic_read(&sdp->sd_log_thresh1));
}
static inline int gfs2_ail_flush_reqd(struct gfs2_sbd *sdp)
{
unsigned int used_blocks = sdp->sd_jdesc->jd_blocks - atomic_read(&sdp->sd_log_blks_free);
return used_blocks >= atomic_read(&sdp->sd_log_thresh2);
}
/**
* gfs2_logd - Update log tail as Active Items get flushed to in-place blocks
@ -901,28 +904,43 @@ void gfs2_meta_syncfs(struct gfs2_sbd *sdp)
int gfs2_logd(void *data)
{
struct gfs2_sbd *sdp = data;
unsigned long t;
int need_flush;
unsigned long t = 1;
DEFINE_WAIT(wait);
unsigned preflush;
while (!kthread_should_stop()) {
/* Advance the log tail */
t = sdp->sd_log_flush_time +
gfs2_tune_get(sdp, gt_log_flush_secs) * HZ;
gfs2_ail1_empty(sdp, DIO_ALL);
gfs2_log_lock(sdp);
need_flush = sdp->sd_log_num_buf > gfs2_tune_get(sdp, gt_incore_log_blocks);
gfs2_log_unlock(sdp);
if (need_flush || time_after_eq(jiffies, t)) {
preflush = atomic_read(&sdp->sd_log_pinned);
if (gfs2_jrnl_flush_reqd(sdp) || t == 0) {
gfs2_ail1_empty(sdp, DIO_ALL);
gfs2_log_flush(sdp, NULL);
sdp->sd_log_flush_time = jiffies;
gfs2_ail1_empty(sdp, DIO_ALL);
}
if (gfs2_ail_flush_reqd(sdp)) {
gfs2_ail1_start(sdp);
io_schedule();
gfs2_ail1_empty(sdp, 0);
gfs2_log_flush(sdp, NULL);
gfs2_ail1_empty(sdp, DIO_ALL);
}
wake_up(&sdp->sd_log_waitq);
t = gfs2_tune_get(sdp, gt_logd_secs) * HZ;
if (freezing(current))
refrigerator();
schedule_timeout_interruptible(t);
do {
prepare_to_wait(&sdp->sd_logd_waitq, &wait,
TASK_UNINTERRUPTIBLE);
if (!gfs2_ail_flush_reqd(sdp) &&
!gfs2_jrnl_flush_reqd(sdp) &&
!kthread_should_stop())
t = schedule_timeout(t);
} while(t && !gfs2_ail_flush_reqd(sdp) &&
!gfs2_jrnl_flush_reqd(sdp) &&
!kthread_should_stop());
finish_wait(&sdp->sd_logd_waitq, &wait);
}
return 0;

1
fs/gfs2/log.h
View File

@ -51,7 +51,6 @@ unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
unsigned int ssize);
int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks);
void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks);
void gfs2_log_incr_head(struct gfs2_sbd *sdp);
struct buffer_head *gfs2_log_get_buf(struct gfs2_sbd *sdp);

2
fs/gfs2/lops.c
View File

@ -54,6 +54,7 @@ static void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh)
if (bd->bd_ail)
list_move(&bd->bd_ail_st_list, &bd->bd_ail->ai_ail2_list);
get_bh(bh);
atomic_inc(&sdp->sd_log_pinned);
trace_gfs2_pin(bd, 1);
}
@ -94,6 +95,7 @@ static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh,
trace_gfs2_pin(bd, 0);
gfs2_log_unlock(sdp);
unlock_buffer(bh);
atomic_dec(&sdp->sd_log_pinned);
}

2
fs/gfs2/main.c
View File

@ -94,7 +94,7 @@ static int __init init_gfs2_fs(void)
if (!gfs2_glock_cachep)
goto fail;
gfs2_glock_aspace_cachep = kmem_cache_create("gfs2_glock (aspace)",
gfs2_glock_aspace_cachep = kmem_cache_create("gfs2_glock(aspace)",
sizeof(struct gfs2_glock) +
sizeof(struct address_space),
0, 0, gfs2_init_gl_aspace_once);

5
fs/gfs2/meta_io.c
View File

@ -34,7 +34,6 @@
static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wbc)
{
int err;
struct buffer_head *bh, *head;
int nr_underway = 0;
int write_op = (1 << BIO_RW_META) | ((wbc->sync_mode == WB_SYNC_ALL ?
@ -86,11 +85,10 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
} while (bh != head);
unlock_page(page);
err = 0;
if (nr_underway == 0)
end_page_writeback(page);
return err;
return 0;
}
const struct address_space_operations gfs2_meta_aops = {
@ -313,6 +311,7 @@ void gfs2_remove_from_journal(struct buffer_head *bh, struct gfs2_trans *tr, int
struct gfs2_bufdata *bd = bh->b_private;
if (test_clear_buffer_pinned(bh)) {
atomic_dec(&sdp->sd_log_pinned);
list_del_init(&bd->bd_le.le_list);
if (meta) {
gfs2_assert_warn(sdp, sdp->sd_log_num_buf);

19
fs/gfs2/ops_fstype.c
View File

@ -57,8 +57,6 @@ static void gfs2_tune_init(struct gfs2_tune *gt)
{
spin_lock_init(&gt->gt_spin);
gt->gt_incore_log_blocks = 1024;
gt->gt_logd_secs = 1;
gt->gt_quota_simul_sync = 64;
gt->gt_quota_warn_period = 10;
gt->gt_quota_scale_num = 1;
@ -101,14 +99,15 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
spin_lock_init(&sdp->sd_trunc_lock);
spin_lock_init(&sdp->sd_log_lock);
atomic_set(&sdp->sd_log_pinned, 0);
INIT_LIST_HEAD(&sdp->sd_log_le_buf);
INIT_LIST_HEAD(&sdp->sd_log_le_revoke);
INIT_LIST_HEAD(&sdp->sd_log_le_rg);
INIT_LIST_HEAD(&sdp->sd_log_le_databuf);
INIT_LIST_HEAD(&sdp->sd_log_le_ordered);
mutex_init(&sdp->sd_log_reserve_mutex);
init_waitqueue_head(&sdp->sd_log_waitq);
init_waitqueue_head(&sdp->sd_logd_waitq);
INIT_LIST_HEAD(&sdp->sd_ail1_list);
INIT_LIST_HEAD(&sdp->sd_ail2_list);
@ -487,7 +486,7 @@ static int gfs2_lookup_root(struct super_block *sb, struct dentry **dptr,
struct dentry *dentry;
struct inode *inode;
inode = gfs2_inode_lookup(sb, DT_DIR, no_addr, 0, 0);
inode = gfs2_inode_lookup(sb, DT_DIR, no_addr, 0);
if (IS_ERR(inode)) {
fs_err(sdp, "can't read in %s inode: %ld\n", name, PTR_ERR(inode));
return PTR_ERR(inode);
@ -733,6 +732,8 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
if (sdp->sd_args.ar_spectator) {
sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0);
atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks);
atomic_set(&sdp->sd_log_thresh1, 2*sdp->sd_jdesc->jd_blocks/5);
atomic_set(&sdp->sd_log_thresh2, 4*sdp->sd_jdesc->jd_blocks/5);
} else {
if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) {
fs_err(sdp, "can't mount journal #%u\n",
@ -770,6 +771,8 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
goto fail_jinode_gh;
}
atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks);
atomic_set(&sdp->sd_log_thresh1, 2*sdp->sd_jdesc->jd_blocks/5);
atomic_set(&sdp->sd_log_thresh2, 4*sdp->sd_jdesc->jd_blocks/5);
/* Map the extents for this journal's blocks */
map_journal_extents(sdp);
@ -951,8 +954,6 @@ static int init_threads(struct gfs2_sbd *sdp, int undo)
if (undo)
goto fail_quotad;
sdp->sd_log_flush_time = jiffies;
p = kthread_run(gfs2_logd, sdp, "gfs2_logd");
error = IS_ERR(p);
if (error) {
@ -1160,7 +1161,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent
GFS2_BASIC_BLOCK_SHIFT;
sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift;
sdp->sd_tune.gt_log_flush_secs = sdp->sd_args.ar_commit;
sdp->sd_tune.gt_logd_secs = sdp->sd_args.ar_commit;
sdp->sd_tune.gt_quota_quantum = sdp->sd_args.ar_quota_quantum;
if (sdp->sd_args.ar_statfs_quantum) {
sdp->sd_tune.gt_statfs_slow = 0;
@ -1323,7 +1324,7 @@ static int gfs2_get_sb(struct file_system_type *fs_type, int flags,
memset(&args, 0, sizeof(args));
args.ar_quota = GFS2_QUOTA_DEFAULT;
args.ar_data = GFS2_DATA_DEFAULT;
args.ar_commit = 60;
args.ar_commit = 30;
args.ar_statfs_quantum = 30;
args.ar_quota_quantum = 60;
args.ar_errors = GFS2_ERRORS_DEFAULT;

102
fs/gfs2/quota.c
View File

@ -637,15 +637,40 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
unsigned blocksize, iblock, pos;
struct buffer_head *bh, *dibh;
struct page *page;
void *kaddr;
struct gfs2_quota *qp;
s64 value;
int err = -EIO;
void *kaddr, *ptr;
struct gfs2_quota q, *qp;
int err, nbytes;
u64 size;
if (gfs2_is_stuffed(ip))
gfs2_unstuff_dinode(ip, NULL);
memset(&q, 0, sizeof(struct gfs2_quota));
err = gfs2_internal_read(ip, NULL, (char *)&q, &loc, sizeof(q));
if (err < 0)
return err;
err = -EIO;
qp = &q;
qp->qu_value = be64_to_cpu(qp->qu_value);
qp->qu_value += change;
qp->qu_value = cpu_to_be64(qp->qu_value);
qd->qd_qb.qb_value = qp->qu_value;
if (fdq) {
if (fdq->d_fieldmask & FS_DQ_BSOFT) {
qp->qu_warn = cpu_to_be64(fdq->d_blk_softlimit);
qd->qd_qb.qb_warn = qp->qu_warn;
}
if (fdq->d_fieldmask & FS_DQ_BHARD) {
qp->qu_limit = cpu_to_be64(fdq->d_blk_hardlimit);
qd->qd_qb.qb_limit = qp->qu_limit;
}
}
/* Write the quota into the quota file on disk */
ptr = qp;
nbytes = sizeof(struct gfs2_quota);
get_a_page:
page = grab_cache_page(mapping, index);
if (!page)
return -ENOMEM;
@ -667,7 +692,12 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
if (!buffer_mapped(bh)) {
gfs2_block_map(inode, iblock, bh, 1);
if (!buffer_mapped(bh))
goto unlock;
goto unlock_out;
/* If it's a newly allocated disk block for quota, zero it */
if (buffer_new(bh)) {
memset(bh->b_data, 0, bh->b_size);
set_buffer_uptodate(bh);
}
}
if (PageUptodate(page))
@ -677,32 +707,34 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
ll_rw_block(READ_META, 1, &bh);
wait_on_buffer(bh);
if (!buffer_uptodate(bh))
goto unlock;
goto unlock_out;
}
gfs2_trans_add_bh(ip->i_gl, bh, 0);
kaddr = kmap_atomic(page, KM_USER0);
qp = kaddr + offset;
value = (s64)be64_to_cpu(qp->qu_value) + change;
qp->qu_value = cpu_to_be64(value);
qd->qd_qb.qb_value = qp->qu_value;
if (fdq) {
if (fdq->d_fieldmask & FS_DQ_BSOFT) {
qp->qu_warn = cpu_to_be64(fdq->d_blk_softlimit);
qd->qd_qb.qb_warn = qp->qu_warn;
}
if (fdq->d_fieldmask & FS_DQ_BHARD) {
qp->qu_limit = cpu_to_be64(fdq->d_blk_hardlimit);
qd->qd_qb.qb_limit = qp->qu_limit;
}
}
if (offset + sizeof(struct gfs2_quota) > PAGE_CACHE_SIZE)
nbytes = PAGE_CACHE_SIZE - offset;
memcpy(kaddr + offset, ptr, nbytes);
flush_dcache_page(page);
kunmap_atomic(kaddr, KM_USER0);
unlock_page(page);
page_cache_release(page);
/* If quota straddles page boundary, we need to update the rest of the
* quota at the beginning of the next page */
if (offset != 0) { /* first page, offset is closer to PAGE_CACHE_SIZE */
ptr = ptr + nbytes;
nbytes = sizeof(struct gfs2_quota) - nbytes;
offset = 0;
index++;
goto get_a_page;
}
/* Update the disk inode timestamp and size (if extended) */
err = gfs2_meta_inode_buffer(ip, &dibh);
if (err)
goto unlock;
goto out;
size = loc + sizeof(struct gfs2_quota);
if (size > inode->i_size) {
@ -715,7 +747,9 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
brelse(dibh);
mark_inode_dirty(inode);
unlock:
out:
return err;
unlock_out:
unlock_page(page);
page_cache_release(page);
return err;
@ -779,8 +813,10 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
* rgrp since it won't be allocated during the transaction
*/
al->al_requested = 1;
/* +1 in the end for block requested above for unstuffing */
blocks = num_qd * data_blocks + RES_DINODE + num_qd + 1;
/* +3 in the end for unstuffing block, inode size update block
* and another block in case quota straddles page boundary and
* two blocks need to be updated instead of 1 */
blocks = num_qd * data_blocks + RES_DINODE + num_qd + 3;
if (nalloc)
al->al_requested += nalloc * (data_blocks + ind_blocks);
@ -1418,10 +1454,18 @@ static int gfs2_quota_get_xstate(struct super_block *sb,
memset(fqs, 0, sizeof(struct fs_quota_stat));
fqs->qs_version = FS_QSTAT_VERSION;
if (sdp->sd_args.ar_quota == GFS2_QUOTA_ON)
fqs->qs_flags = (XFS_QUOTA_UDQ_ENFD | XFS_QUOTA_GDQ_ENFD);
else if (sdp->sd_args.ar_quota == GFS2_QUOTA_ACCOUNT)
fqs->qs_flags = (XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_GDQ_ACCT);
switch (sdp->sd_args.ar_quota) {
case GFS2_QUOTA_ON:
fqs->qs_flags |= (XFS_QUOTA_UDQ_ENFD | XFS_QUOTA_GDQ_ENFD);
/*FALLTHRU*/
case GFS2_QUOTA_ACCOUNT:
fqs->qs_flags |= (XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_GDQ_ACCT);
break;
case GFS2_QUOTA_OFF:
break;
}
if (sdp->sd_quota_inode) {
fqs->qs_uquota.qfs_ino = GFS2_I(sdp->sd_quota_inode)->i_no_addr;
fqs->qs_uquota.qfs_nblks = sdp->sd_quota_inode->i_blocks;

68
fs/gfs2/rgrp.c
View File

@ -948,13 +948,13 @@ static int try_rgrp_fit(struct gfs2_rgrpd *rgd, struct gfs2_alloc *al)
* try_rgrp_unlink - Look for any unlinked, allocated, but unused inodes
* @rgd: The rgrp
*
* Returns: The inode, if one has been found
* Returns: 0 if no error
* The inode, if one has been found, in inode.
*/
static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked,
u64 skip)
static u64 try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked,
u64 skip)
{
struct inode *inode;
u32 goal = 0, block;
u64 no_addr;
struct gfs2_sbd *sdp = rgd->rd_sbd;
@ -979,14 +979,11 @@ static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked,
if (no_addr == skip)
continue;
*last_unlinked = no_addr;
inode = gfs2_inode_lookup(rgd->rd_sbd->sd_vfs, DT_UNKNOWN,
no_addr, -1, 1);
if (!IS_ERR(inode))
return inode;
return no_addr;
}
rgd->rd_flags &= ~GFS2_RDF_CHECK;
return NULL;
return 0;
}
/**
@ -1067,11 +1064,12 @@ static void forward_rgrp_set(struct gfs2_sbd *sdp, struct gfs2_rgrpd *rgd)
* Try to acquire rgrp in way which avoids contending with others.
*
* Returns: errno
* unlinked: the block address of an unlinked block to be reclaimed
*/
static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
static int get_local_rgrp(struct gfs2_inode *ip, u64 *unlinked,
u64 *last_unlinked)
{
struct inode *inode = NULL;
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct gfs2_rgrpd *rgd, *begin = NULL;
struct gfs2_alloc *al = ip->i_alloc;
@ -1080,6 +1078,7 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
int loops = 0;
int error, rg_locked;
*unlinked = 0;
rgd = gfs2_blk2rgrpd(sdp, ip->i_goal);
while (rgd) {
@ -1096,19 +1095,24 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
case 0:
if (try_rgrp_fit(rgd, al))
goto out;
if (rgd->rd_flags & GFS2_RDF_CHECK)
inode = try_rgrp_unlink(rgd, last_unlinked, ip->i_no_addr);
/* If the rg came in already locked, there's no
way we can recover from a failed try_rgrp_unlink
because that would require an iput which can only
happen after the rgrp is unlocked. */
if (!rg_locked && rgd->rd_flags & GFS2_RDF_CHECK)
*unlinked = try_rgrp_unlink(rgd, last_unlinked,
ip->i_no_addr);
if (!rg_locked)
gfs2_glock_dq_uninit(&al->al_rgd_gh);
if (inode)
return inode;
if (*unlinked)
return -EAGAIN;
/* fall through */
case GLR_TRYFAILED:
rgd = recent_rgrp_next(rgd);
break;
default:
return ERR_PTR(error);
return error;
}
}
@ -1130,12 +1134,13 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
case 0:
if (try_rgrp_fit(rgd, al))
goto out;
if (rgd->rd_flags & GFS2_RDF_CHECK)
inode = try_rgrp_unlink(rgd, last_unlinked, ip->i_no_addr);
if (!rg_locked && rgd->rd_flags & GFS2_RDF_CHECK)
*unlinked = try_rgrp_unlink(rgd, last_unlinked,
ip->i_no_addr);
if (!rg_locked)
gfs2_glock_dq_uninit(&al->al_rgd_gh);
if (inode)
return inode;
if (*unlinked)
return -EAGAIN;
break;
case GLR_TRYFAILED:
@ -1143,7 +1148,7 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
break;
default:
return ERR_PTR(error);
return error;
}
rgd = gfs2_rgrpd_get_next(rgd);
@ -1152,7 +1157,7 @@ static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
if (rgd == begin) {
if (++loops >= 3)
return ERR_PTR(-ENOSPC);
return -ENOSPC;
if (!skipped)
loops++;
flags = 0;
@ -1172,7 +1177,7 @@ out:
forward_rgrp_set(sdp, rgd);
}
return NULL;
return 0;
}
/**
@ -1188,7 +1193,7 @@ int gfs2_inplace_reserve_i(struct gfs2_inode *ip, char *file, unsigned int line)
struct gfs2_alloc *al = ip->i_alloc;
struct inode *inode;
int error = 0;
u64 last_unlinked = NO_BLOCK;
u64 last_unlinked = NO_BLOCK, unlinked;
if (gfs2_assert_warn(sdp, al->al_requested))
return -EINVAL;
@ -1204,14 +1209,19 @@ try_again:
if (error)
return error;
inode = get_local_rgrp(ip, &last_unlinked);
if (inode) {
error = get_local_rgrp(ip, &unlinked, &last_unlinked);
if (error) {
if (ip != GFS2_I(sdp->sd_rindex))
gfs2_glock_dq_uninit(&al->al_ri_gh);
if (IS_ERR(inode))
return PTR_ERR(inode);
iput(inode);
if (error != -EAGAIN)
return error;
error = gfs2_unlinked_inode_lookup(ip->i_inode.i_sb,
unlinked, &inode);
if (inode)
iput(inode);
gfs2_log_flush(sdp, NULL);
if (error == GLR_TRYFAILED)
error = 0;
goto try_again;
}

11
fs/gfs2/super.c
View File

@ -1113,7 +1113,7 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
int error;
spin_lock(&gt->gt_spin);
args.ar_commit = gt->gt_log_flush_secs;
args.ar_commit = gt->gt_logd_secs;
args.ar_quota_quantum = gt->gt_quota_quantum;
if (gt->gt_statfs_slow)
args.ar_statfs_quantum = 0;
@ -1160,7 +1160,7 @@ static int gfs2_remount_fs(struct super_block *sb, int *flags, char *data)
else
clear_bit(SDF_NOBARRIERS, &sdp->sd_flags);
spin_lock(&gt->gt_spin);
gt->gt_log_flush_secs = args.ar_commit;
gt->gt_logd_secs = args.ar_commit;
gt->gt_quota_quantum = args.ar_quota_quantum;
if (args.ar_statfs_quantum) {
gt->gt_statfs_slow = 0;
@ -1305,8 +1305,8 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
}
if (args->ar_discard)
seq_printf(s, ",discard");
val = sdp->sd_tune.gt_log_flush_secs;
if (val != 60)
val = sdp->sd_tune.gt_logd_secs;
if (val != 30)
seq_printf(s, ",commit=%d", val);
val = sdp->sd_tune.gt_statfs_quantum;
if (val != 30)
@ -1334,7 +1334,8 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
}
if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags))
seq_printf(s, ",nobarrier");
if (test_bit(SDF_DEMOTE, &sdp->sd_flags))
seq_printf(s, ",demote_interface_used");
return 0;
}

6
fs/gfs2/sys.c
View File

@ -232,6 +232,8 @@ static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len
glops = gfs2_glops_list[gltype];
if (glops == NULL)
return -EINVAL;
if (!test_and_set_bit(SDF_DEMOTE, &sdp->sd_flags))
fs_info(sdp, "demote interface used\n");
rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl);
if (rv)
return rv;
@ -468,8 +470,6 @@ static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\
} \
TUNE_ATTR_2(name, name##_store)
TUNE_ATTR(incore_log_blocks, 0);
TUNE_ATTR(log_flush_secs, 0);
TUNE_ATTR(quota_warn_period, 0);
TUNE_ATTR(quota_quantum, 0);
TUNE_ATTR(max_readahead, 0);
@ -481,8 +481,6 @@ TUNE_ATTR(statfs_quantum, 1);
TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store);
static struct attribute *tune_attrs[] = {
&tune_attr_incore_log_blocks.attr,
&tune_attr_log_flush_secs.attr,
&tune_attr_quota_warn_period.attr,
&tune_attr_quota_quantum.attr,
&tune_attr_max_readahead.attr,

18
fs/gfs2/trans.c
View File

@ -23,6 +23,7 @@
#include "meta_io.h"
#include "trans.h"
#include "util.h"
#include "trace_gfs2.h"
int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
unsigned int revokes)
@ -75,6 +76,23 @@ fail_holder_uninit:
return error;
}
/**
* gfs2_log_release - Release a given number of log blocks
* @sdp: The GFS2 superblock
* @blks: The number of blocks
*
*/
static void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks)
{
atomic_add(blks, &sdp->sd_log_blks_free);
trace_gfs2_log_blocks(sdp, blks);
gfs2_assert_withdraw(sdp, atomic_read(&sdp->sd_log_blks_free) <=
sdp->sd_jdesc->jd_blocks);
up_read(&sdp->sd_log_flush_lock);
}
void gfs2_trans_end(struct gfs2_sbd *sdp)
{
struct gfs2_trans *tr = current->journal_info;