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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Browse Source 
Pull pile 2 of vfs updates from Al Viro:
 "Stuff in this one - assorted fixes, lglock tidy-up, death to
  lock_super().

  There'll be a VFS pile tomorrow (with patches from Jeff Layton,
  sanitizing getname() and related parts of audit and preparing for
  ESTALE fixes), but I'd rather push the stuff in this one ASAP - some
  of the bugs closed here are quite unpleasant."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  vfs: bogus warnings in fs/namei.c
  consitify do_mount() arguments
  lglock: add DEFINE_STATIC_LGLOCK()
  lglock: make the per_cpu locks static
  lglock: remove unused DEFINE_LGLOCK_LOCKDEP()
  MAX_LFS_FILESIZE definition for 64bit needs LL...
  tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking
  vfs: drop lock/unlock super
  ufs: drop lock/unlock super
  sysv: drop lock/unlock super
  hpfs: drop lock/unlock super
  fat: drop lock/unlock super
  ext3: drop lock/unlock super
  exofs: drop lock/unlock super
  dup3: Return an error when oldfd == newfd.
  fs: handle failed audit_log_start properly
  fs: prevent use after free in auditing when symlink following was denied
This commit is contained in:
Linus Torvalds 2012-10-12 10:52:03 +09:00
commit 79360ddd73
39 changed files with 166 additions and 170 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
fs/ceph/export.c
View File

@ -99,7 +99,7 @@ static int ceph_encode_fh(struct inode *inode, u32 *rawfh, int *max_len,
* FIXME: we should try harder by querying the mds for the ino.
*/
static struct dentry *__fh_to_dentry(struct super_block *sb,
struct ceph_nfs_fh *fh)
struct ceph_nfs_fh *fh, int fh_len)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(sb)->mdsc;
struct inode *inode;
@ -107,6 +107,9 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
struct ceph_vino vino;
int err;
if (fh_len < sizeof(*fh) / 4)
return ERR_PTR(-ESTALE);
dout("__fh_to_dentry %llx\n", fh->ino);
vino.ino = fh->ino;
vino.snap = CEPH_NOSNAP;
@ -150,7 +153,7 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
* convert connectable fh to dentry
*/
static struct dentry *__cfh_to_dentry(struct super_block *sb,
struct ceph_nfs_confh *cfh)
struct ceph_nfs_confh *cfh, int fh_len)
{
struct ceph_mds_client *mdsc = ceph_sb_to_client(sb)->mdsc;
struct inode *inode;
@ -158,6 +161,9 @@ static struct dentry *__cfh_to_dentry(struct super_block *sb,
struct ceph_vino vino;
int err;
if (fh_len < sizeof(*cfh) / 4)
return ERR_PTR(-ESTALE);
dout("__cfh_to_dentry %llx (%llx/%x)\n",
cfh->ino, cfh->parent_ino, cfh->parent_name_hash);
@ -207,9 +213,11 @@ static struct dentry *ceph_fh_to_dentry(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
{
if (fh_type == 1)
return __fh_to_dentry(sb, (struct ceph_nfs_fh *)fid->raw);
return __fh_to_dentry(sb, (struct ceph_nfs_fh *)fid->raw,
fh_len);
else
return __cfh_to_dentry(sb, (struct ceph_nfs_confh *)fid->raw);
return __cfh_to_dentry(sb, (struct ceph_nfs_confh *)fid->raw,
fh_len);
}
/*
@ -230,6 +238,8 @@ static struct dentry *ceph_fh_to_parent(struct super_block *sb,
if (fh_type == 1)
return ERR_PTR(-ESTALE);
if (fh_len < sizeof(*cfh) / 4)
return ERR_PTR(-ESTALE);
pr_debug("fh_to_parent %llx/%d\n", cfh->parent_ino,
cfh->parent_name_hash);

4
fs/exofs/super.c
View File

@ -389,8 +389,6 @@ static int exofs_sync_fs(struct super_block *sb, int wait)
if (unlikely(ret))
goto out;
lock_super(sb);
ios->length = offsetof(struct exofs_fscb, s_dev_table_oid);
memset(fscb, 0, ios->length);
fscb->s_nextid = cpu_to_le64(sbi->s_nextid);
@ -406,8 +404,6 @@ static int exofs_sync_fs(struct super_block *sb, int wait)
if (unlikely(ret))
EXOFS_ERR("%s: ore_write failed.\n", __func__);
unlock_super(sb);
out:
EXOFS_DBGMSG("s_nextid=0x%llx ret=%d\n", _LLU(sbi->s_nextid), ret);
ore_put_io_state(ios);

6
fs/ext3/super.c
View File

@ -2578,11 +2578,9 @@ out:
static int ext3_unfreeze(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY)) {
lock_super(sb);
/* Reser the needs_recovery flag before the fs is unlocked. */
EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
unlock_super(sb);
journal_unlock_updates(EXT3_SB(sb)->s_journal);
}
return 0;
@ -2602,7 +2600,6 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data)
#endif
/* Store the original options */
lock_super(sb);
old_sb_flags = sb->s_flags;
old_opts.s_mount_opt = sbi->s_mount_opt;
old_opts.s_resuid = sbi->s_resuid;
@ -2708,8 +2705,6 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data)
old_opts.s_qf_names[i] != sbi->s_qf_names[i])
kfree(old_opts.s_qf_names[i]);
#endif
unlock_super(sb);
if (enable_quota)
dquot_resume(sb, -1);
return 0;
@ -2728,7 +2723,6 @@ restore_opts:
sbi->s_qf_names[i] = old_opts.s_qf_names[i];
}
#endif
unlock_super(sb);
return err;
}

4
fs/fat/dir.c
View File

@ -571,7 +571,7 @@ static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
int short_len = 0, fill_len = 0;
int ret = 0;
lock_super(sb);
mutex_lock(&sbi->s_lock);
cpos = filp->f_pos;
/* Fake . and .. for the root directory. */
@ -693,7 +693,7 @@ fill_failed:
if (unicode)
__putname(unicode);
out:
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return ret;
}

5
fs/fat/fat.h
View File

@ -71,8 +71,9 @@ struct msdos_sb_info {
unsigned long root_cluster; /* first cluster of the root directory */
unsigned long fsinfo_sector; /* sector number of FAT32 fsinfo */
struct mutex fat_lock;
unsigned int prev_free; /* previously allocated cluster number */
unsigned int free_clusters; /* -1 if undefined */
struct mutex s_lock;
unsigned int prev_free; /* previously allocated cluster number */
unsigned int free_clusters; /* -1 if undefined */
unsigned int free_clus_valid; /* is free_clusters valid? */
struct fat_mount_options options;
struct nls_table *nls_disk; /* Codepage used on disk */

5
fs/fat/inode.c
View File

@ -673,9 +673,9 @@ static int fat_write_inode(struct inode *inode, struct writeback_control *wbc)
if (inode->i_ino == MSDOS_FSINFO_INO) {
struct super_block *sb = inode->i_sb;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = fat_clusters_flush(sb);
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
} else
err = __fat_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
@ -1268,6 +1268,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
b = (struct fat_boot_sector *) bh->b_data;
}
mutex_init(&sbi->s_lock);
sbi->cluster_size = sb->s_blocksize * sbi->sec_per_clus;
sbi->cluster_bits = ffs(sbi->cluster_size) - 1;
sbi->fats = b->fats;

26
fs/fat/namei_msdos.c
View File

@ -208,7 +208,7 @@ static struct dentry *msdos_lookup(struct inode *dir, struct dentry *dentry,
struct inode *inode;
int err;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
switch (err) {
case -ENOENT:
@ -221,7 +221,7 @@ static struct dentry *msdos_lookup(struct inode *dir, struct dentry *dentry,
default:
inode = ERR_PTR(err);
}
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return d_splice_alias(inode, dentry);
}
@ -273,7 +273,7 @@ static int msdos_create(struct inode *dir, struct dentry *dentry, umode_t mode,
unsigned char msdos_name[MSDOS_NAME];
int err, is_hid;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
msdos_name, &MSDOS_SB(sb)->options);
@ -302,7 +302,7 @@ static int msdos_create(struct inode *dir, struct dentry *dentry, umode_t mode,
d_instantiate(dentry, inode);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
if (!err)
err = fat_flush_inodes(sb, dir, inode);
return err;
@ -316,7 +316,7 @@ static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
struct fat_slot_info sinfo;
int err;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
/*
* Check whether the directory is not in use, then check
* whether it is empty.
@ -337,7 +337,7 @@ static int msdos_rmdir(struct inode *dir, struct dentry *dentry)
inode->i_ctime = CURRENT_TIME_SEC;
fat_detach(inode);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
if (!err)
err = fat_flush_inodes(sb, dir, inode);
@ -354,7 +354,7 @@ static int msdos_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct timespec ts;
int err, is_hid, cluster;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = msdos_format_name(dentry->d_name.name, dentry->d_name.len,
msdos_name, &MSDOS_SB(sb)->options);
@ -392,14 +392,14 @@ static int msdos_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
d_instantiate(dentry, inode);
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
fat_flush_inodes(sb, dir, inode);
return 0;
out_free:
fat_free_clusters(dir, cluster);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return err;
}
@ -411,7 +411,7 @@ static int msdos_unlink(struct inode *dir, struct dentry *dentry)
struct fat_slot_info sinfo;
int err;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo);
if (err)
goto out;
@ -423,7 +423,7 @@ static int msdos_unlink(struct inode *dir, struct dentry *dentry)
inode->i_ctime = CURRENT_TIME_SEC;
fat_detach(inode);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
if (!err)
err = fat_flush_inodes(sb, dir, inode);
@ -606,7 +606,7 @@ static int msdos_rename(struct inode *old_dir, struct dentry *old_dentry,
unsigned char old_msdos_name[MSDOS_NAME], new_msdos_name[MSDOS_NAME];
int err, is_hid;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = msdos_format_name(old_dentry->d_name.name,
old_dentry->d_name.len, old_msdos_name,
@ -625,7 +625,7 @@ static int msdos_rename(struct inode *old_dir, struct dentry *old_dentry,
err = do_msdos_rename(old_dir, old_msdos_name, old_dentry,
new_dir, new_msdos_name, new_dentry, is_hid);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
if (!err)
err = fat_flush_inodes(sb, old_dir, new_dir);
return err;

30
fs/fat/namei_vfat.c
View File

@ -721,7 +721,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
struct dentry *alias;
int err;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = vfat_find(dir, &dentry->d_name, &sinfo);
if (err) {
@ -752,13 +752,13 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
if (!S_ISDIR(inode->i_mode))
d_move(alias, dentry);
iput(inode);
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return alias;
} else
dput(alias);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
dentry->d_time = dentry->d_parent->d_inode->i_version;
dentry = d_splice_alias(inode, dentry);
if (dentry)
@ -766,7 +766,7 @@ out:
return dentry;
error:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return ERR_PTR(err);
}
@ -779,7 +779,7 @@ static int vfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
struct timespec ts;
int err;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
ts = CURRENT_TIME_SEC;
err = vfat_add_entry(dir, &dentry->d_name, 0, 0, &ts, &sinfo);
@ -800,7 +800,7 @@ static int vfat_create(struct inode *dir, struct dentry *dentry, umode_t mode,
dentry->d_time = dentry->d_parent->d_inode->i_version;
d_instantiate(dentry, inode);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return err;
}
@ -811,7 +811,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
struct fat_slot_info sinfo;
int err;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = fat_dir_empty(inode);
if (err)
@ -829,7 +829,7 @@ static int vfat_rmdir(struct inode *dir, struct dentry *dentry)
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return err;
}
@ -841,7 +841,7 @@ static int vfat_unlink(struct inode *dir, struct dentry *dentry)
struct fat_slot_info sinfo;
int err;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = vfat_find(dir, &dentry->d_name, &sinfo);
if (err)
@ -854,7 +854,7 @@ static int vfat_unlink(struct inode *dir, struct dentry *dentry)
inode->i_mtime = inode->i_atime = CURRENT_TIME_SEC;
fat_detach(inode);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return err;
}
@ -867,7 +867,7 @@ static int vfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
struct timespec ts;
int err, cluster;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
ts = CURRENT_TIME_SEC;
cluster = fat_alloc_new_dir(dir, &ts);
@ -896,13 +896,13 @@ static int vfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
dentry->d_time = dentry->d_parent->d_inode->i_version;
d_instantiate(dentry, inode);
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return 0;
out_free:
fat_free_clusters(dir, cluster);
out:
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return err;
}
@ -921,7 +921,7 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
old_inode = old_dentry->d_inode;
new_inode = new_dentry->d_inode;
lock_super(sb);
mutex_lock(&MSDOS_SB(sb)->s_lock);
err = vfat_find(old_dir, &old_dentry->d_name, &old_sinfo);
if (err)
goto out;
@ -996,7 +996,7 @@ out:
brelse(sinfo.bh);
brelse(dotdot_bh);
brelse(old_sinfo.bh);
unlock_super(sb);
mutex_unlock(&MSDOS_SB(sb)->s_lock);
return err;

3
fs/file.c
View File

@ -922,6 +922,9 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags)
if ((flags & ~O_CLOEXEC) != 0)
return -EINVAL;
if (unlikely(oldfd == newfd))
return -EINVAL;
if (newfd >= rlimit(RLIMIT_NOFILE))
return -EMFILE;

2
fs/file_table.c
View File

@ -36,7 +36,7 @@ struct files_stat_struct files_stat = {
.max_files = NR_FILE
};
DEFINE_LGLOCK(files_lglock);
DEFINE_STATIC_LGLOCK(files_lglock);
/* SLAB cache for file structures */
static struct kmem_cache *filp_cachep __read_mostly;

4
fs/gfs2/export.c
View File

@ -161,6 +161,8 @@ static struct dentry *gfs2_fh_to_dentry(struct super_block *sb, struct fid *fid,
case GFS2_SMALL_FH_SIZE:
case GFS2_LARGE_FH_SIZE:
case GFS2_OLD_FH_SIZE:
if (fh_len < GFS2_SMALL_FH_SIZE)
return NULL;
this.no_formal_ino = ((u64)be32_to_cpu(fh[0])) << 32;
this.no_formal_ino |= be32_to_cpu(fh[1]);
this.no_addr = ((u64)be32_to_cpu(fh[2])) << 32;
@ -180,6 +182,8 @@ static struct dentry *gfs2_fh_to_parent(struct super_block *sb, struct fid *fid,
switch (fh_type) {
case GFS2_LARGE_FH_SIZE:
case GFS2_OLD_FH_SIZE:
if (fh_len < GFS2_LARGE_FH_SIZE)
return NULL;
parent.no_formal_ino = ((u64)be32_to_cpu(fh[4])) << 32;
parent.no_formal_ino |= be32_to_cpu(fh[5]);
parent.no_addr = ((u64)be32_to_cpu(fh[6])) << 32;

3
fs/hpfs/super.c
View File

@ -398,7 +398,6 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
*flags |= MS_NOATIME;
hpfs_lock(s);
lock_super(s);
uid = sbi->sb_uid; gid = sbi->sb_gid;
umask = 0777 & ~sbi->sb_mode;
lowercase = sbi->sb_lowercase;
@ -431,12 +430,10 @@ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data)
replace_mount_options(s, new_opts);
unlock_super(s);
hpfs_unlock(s);
return 0;
out_err:
unlock_super(s);
hpfs_unlock(s);
kfree(new_opts);
return -EINVAL;

2
fs/isofs/export.c
View File

@ -175,7 +175,7 @@ static struct dentry *isofs_fh_to_parent(struct super_block *sb,
{
struct isofs_fid *ifid = (struct isofs_fid *)fid;
if (fh_type != 2)
if (fh_len < 2 || fh_type != 2)
return NULL;
return isofs_export_iget(sb,

3
fs/namei.c
View File

@ -692,9 +692,9 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd)
if (uid_eq(parent->i_uid, inode->i_uid))
return 0;
audit_log_link_denied("follow_link", link);
path_put_conditional(link, nd);
path_put(&nd->path);
audit_log_link_denied("follow_link", link);
return -EACCES;
}
@ -810,6 +810,7 @@ follow_link(struct path *link, struct nameidata *nd, void **p)
return error;
out_put_nd_path:
*p = NULL;
path_put(&nd->path);
path_put(link);
return error;

12
fs/namespace.c
View File

@ -1640,7 +1640,7 @@ static int do_change_type(struct path *path, int flag)
/*
* do loopback mount.
*/
static int do_loopback(struct path *path, char *old_name,
static int do_loopback(struct path *path, const char *old_name,
int recurse)
{
LIST_HEAD(umount_list);
@ -1764,7 +1764,7 @@ static inline int tree_contains_unbindable(struct mount *mnt)
return 0;
}
static int do_move_mount(struct path *path, char *old_name)
static int do_move_mount(struct path *path, const char *old_name)
{
struct path old_path, parent_path;
struct mount *p;
@ -1917,8 +1917,8 @@ unlock:
* create a new mount for userspace and request it to be added into the
* namespace's tree
*/
static int do_new_mount(struct path *path, char *type, int flags,
int mnt_flags, char *name, void *data)
static int do_new_mount(struct path *path, const char *type, int flags,
int mnt_flags, const char *name, void *data)
{
struct vfsmount *mnt;
int err;
@ -2191,8 +2191,8 @@ int copy_mount_string(const void __user *data, char **where)
* Therefore, if this magic number is present, it carries no information
* and must be discarded.
*/
long do_mount(char *dev_name, char *dir_name, char *type_page,
unsigned long flags, void *data_page)
long do_mount(const char *dev_name, const char *dir_name,
const char *type_page, unsigned long flags, void *data_page)
{
struct path path;
int retval = 0;

6
fs/reiserfs/inode.c
View File

@ -1573,8 +1573,10 @@ struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
reiserfs_warning(sb, "reiserfs-13077",
"nfsd/reiserfs, fhtype=%d, len=%d - odd",
fh_type, fh_len);
fh_type = 5;
fh_type = fh_len;
}
if (fh_len < 2)
return NULL;
return reiserfs_get_dentry(sb, fid->raw[0], fid->raw[1],
(fh_type == 3 || fh_type >= 5) ? fid->raw[2] : 0);
@ -1583,6 +1585,8 @@ struct dentry *reiserfs_fh_to_dentry(struct super_block *sb, struct fid *fid,
struct dentry *reiserfs_fh_to_parent(struct super_block *sb, struct fid *fid,
int fh_len, int fh_type)
{
if (fh_type > fh_len)
fh_type = fh_len;
if (fh_type < 4)
return NULL;

23
fs/super.c
View File

@ -186,14 +186,7 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
spin_lock_init(&s->s_inode_lru_lock);
INIT_LIST_HEAD(&s->s_mounts);
init_rwsem(&s->s_umount);
mutex_init(&s->s_lock);
lockdep_set_class(&s->s_umount, &type->s_umount_key);
/*
* The locking rules for s_lock are up to the
* filesystem. For example ext3fs has different
* lock ordering than usbfs:
*/
lockdep_set_class(&s->s_lock, &type->s_lock_key);
/*
* sget() can have s_umount recursion.
*
@ -394,22 +387,6 @@ bool grab_super_passive(struct super_block *sb)
return false;
}
/*
* Superblock locking. We really ought to get rid of these two.
*/
void lock_super(struct super_block * sb)
{
mutex_lock(&sb->s_lock);
}
void unlock_super(struct super_block * sb)
{
mutex_unlock(&sb->s_lock);
}
EXPORT_SYMBOL(lock_super);
EXPORT_SYMBOL(unlock_super);
/**
* generic_shutdown_super - common helper for ->kill_sb()
* @sb: superblock to kill

18
fs/sysv/balloc.c
View File

@ -60,12 +60,12 @@ void sysv_free_block(struct super_block * sb, sysv_zone_t nr)
return;
}
lock_super(sb);
mutex_lock(&sbi->s_lock);
count = fs16_to_cpu(sbi, *sbi->s_bcache_count);
if (count > sbi->s_flc_size) {
printk("sysv_free_block: flc_count > flc_size\n");
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return;
}
/* If the free list head in super-block is full, it is copied
@ -77,7 +77,7 @@ void sysv_free_block(struct super_block * sb, sysv_zone_t nr)
bh = sb_getblk(sb, block);
if (!bh) {
printk("sysv_free_block: getblk() failed\n");
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return;
}
memset(bh->b_data, 0, sb->s_blocksize);
@ -93,7 +93,7 @@ void sysv_free_block(struct super_block * sb, sysv_zone_t nr)
*sbi->s_bcache_count = cpu_to_fs16(sbi, count);
fs32_add(sbi, sbi->s_free_blocks, 1);
dirty_sb(sb);
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
}
sysv_zone_t sysv_new_block(struct super_block * sb)
@ -104,7 +104,7 @@ sysv_zone_t sysv_new_block(struct super_block * sb)
struct buffer_head * bh;
unsigned count;
lock_super(sb);
mutex_lock(&sbi->s_lock);
count = fs16_to_cpu(sbi, *sbi->s_bcache_count);
if (count == 0) /* Applies only to Coherent FS */
@ -147,11 +147,11 @@ sysv_zone_t sysv_new_block(struct super_block * sb)
/* Now the free list head in the superblock is valid again. */
fs32_add(sbi, sbi->s_free_blocks, -1);
dirty_sb(sb);
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return nr;
Enospc:
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return 0;
}
@ -173,7 +173,7 @@ unsigned long sysv_count_free_blocks(struct super_block * sb)
if (sbi->s_type == FSTYPE_AFS)
return 0;
lock_super(sb);
mutex_lock(&sbi->s_lock);
sb_count = fs32_to_cpu(sbi, *sbi->s_free_blocks);
if (0)
@ -211,7 +211,7 @@ unsigned long sysv_count_free_blocks(struct super_block * sb)
if (count != sb_count)
goto Ecount;
done:
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return count;
Einval:

14
fs/sysv/ialloc.c
View File

@ -118,7 +118,7 @@ void sysv_free_inode(struct inode * inode)
"%s\n", inode->i_sb->s_id);
return;
}
lock_super(sb);
mutex_lock(&sbi->s_lock);
count = fs16_to_cpu(sbi, *sbi->s_sb_fic_count);
if (count < sbi->s_fic_size) {
*sv_sb_fic_inode(sb,count++) = cpu_to_fs16(sbi, ino);
@ -128,7 +128,7 @@ void sysv_free_inode(struct inode * inode)
dirty_sb(sb);
memset(raw_inode, 0, sizeof(struct sysv_inode));
mark_buffer_dirty(bh);
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
brelse(bh);
}
@ -147,13 +147,13 @@ struct inode * sysv_new_inode(const struct inode * dir, umode_t mode)
if (!inode)
return ERR_PTR(-ENOMEM);
lock_super(sb);
mutex_lock(&sbi->s_lock);
count = fs16_to_cpu(sbi, *sbi->s_sb_fic_count);
if (count == 0 || (*sv_sb_fic_inode(sb,count-1) == 0)) {
count = refill_free_cache(sb);
if (count == 0) {
iput(inode);
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return ERR_PTR(-ENOSPC);
}
}
@ -174,7 +174,7 @@ struct inode * sysv_new_inode(const struct inode * dir, umode_t mode)
sysv_write_inode(inode, &wbc); /* ensure inode not allocated again */
mark_inode_dirty(inode); /* cleared by sysv_write_inode() */
/* That's it. */
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return inode;
}
@ -185,7 +185,7 @@ unsigned long sysv_count_free_inodes(struct super_block * sb)
struct sysv_inode * raw_inode;
int ino, count, sb_count;
lock_super(sb);
mutex_lock(&sbi->s_lock);
sb_count = fs16_to_cpu(sbi, *sbi->s_sb_total_free_inodes);
@ -213,7 +213,7 @@ unsigned long sysv_count_free_inodes(struct super_block * sb)
if (count != sb_count)
goto Einval;
out:
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return count;
Einval:

4
fs/sysv/inode.c
View File

@ -36,7 +36,7 @@ static int sysv_sync_fs(struct super_block *sb, int wait)
struct sysv_sb_info *sbi = SYSV_SB(sb);
unsigned long time = get_seconds(), old_time;
lock_super(sb);
mutex_lock(&sbi->s_lock);
/*
* If we are going to write out the super block,
@ -51,7 +51,7 @@ static int sysv_sync_fs(struct super_block *sb, int wait)
mark_buffer_dirty(sbi->s_bh2);
}
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
return 0;
}

1
fs/sysv/super.c
View File

@ -368,6 +368,7 @@ static int sysv_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_sb = sb;
sbi->s_block_base = 0;
mutex_init(&sbi->s_lock);
sb->s_fs_info = sbi;
sb_set_blocksize(sb, BLOCK_SIZE);

1
fs/sysv/sysv.h
View File

@ -58,6 +58,7 @@ struct sysv_sb_info {
u32 s_nzones; /* same as s_sbd->s_fsize */
u16 s_namelen; /* max length of dir entry */
int s_forced_ro;
struct mutex s_lock;
};
/*

30
fs/ufs/balloc.c
View File

@ -54,7 +54,7 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
if (ufs_fragnum(fragment) + count > uspi->s_fpg)
ufs_error (sb, "ufs_free_fragments", "internal error");
lock_super(sb);
mutex_lock(&UFS_SB(sb)->s_lock);
cgno = ufs_dtog(uspi, fragment);
bit = ufs_dtogd(uspi, fragment);
@ -118,12 +118,12 @@ void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
return;
failed:
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return;
}
@ -155,7 +155,7 @@ void ufs_free_blocks(struct inode *inode, u64 fragment, unsigned count)
goto failed;
}
lock_super(sb);
mutex_lock(&UFS_SB(sb)->s_lock);
do_more:
overflow = 0;
@ -215,12 +215,12 @@ do_more:
}
ufs_mark_sb_dirty(sb);
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
return;
failed_unlock:
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
failed:
UFSD("EXIT (FAILED)\n");
return;
@ -361,7 +361,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
usb1 = ubh_get_usb_first(uspi);
*err = -ENOSPC;
lock_super (sb);
mutex_lock(&UFS_SB(sb)->s_lock);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
@ -382,19 +382,19 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
"fragment %llu, tmp %llu\n",
(unsigned long long)fragment,
(unsigned long long)tmp);
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
return INVBLOCK;
}
if (fragment < UFS_I(inode)->i_lastfrag) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
}
else {
if (tmp) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
return 0;
}
}
@ -403,7 +403,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
* There is not enough space for user on the device
*/
if (!capable(CAP_SYS_RESOURCE) && ufs_freespace(uspi, UFS_MINFREE) <= 0) {
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return 0;
}
@ -428,7 +428,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
ufs_clear_frags(inode, result + oldcount,
newcount - oldcount, locked_page != NULL);
}
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@ -443,7 +443,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
fragment + count);
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
locked_page != NULL);
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@ -481,7 +481,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
*err = 0;
UFS_I(inode)->i_lastfrag = max(UFS_I(inode)->i_lastfrag,
fragment + count);
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
if (newcount < request)
ufs_free_fragments (inode, result + newcount, request - newcount);
ufs_free_fragments (inode, tmp, oldcount);
@ -489,7 +489,7 @@ u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
return result;
}
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT (FAILED)\n");
return 0;
}

16
fs/ufs/ialloc.c
View File

@ -71,11 +71,11 @@ void ufs_free_inode (struct inode * inode)
ino = inode->i_ino;
lock_super (sb);
mutex_lock(&UFS_SB(sb)->s_lock);
if (!((ino > 1) && (ino < (uspi->s_ncg * uspi->s_ipg )))) {
ufs_warning(sb, "ufs_free_inode", "reserved inode or nonexistent inode %u\n", ino);
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
return;
}
@ -83,7 +83,7 @@ void ufs_free_inode (struct inode * inode)
bit = ufs_inotocgoff (ino);
ucpi = ufs_load_cylinder (sb, cg);
if (!ucpi) {
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
return;
}
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
@ -117,7 +117,7 @@ void ufs_free_inode (struct inode * inode)
ubh_sync_block(UCPI_UBH(ucpi));
ufs_mark_sb_dirty(sb);
unlock_super (sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
UFSD("EXIT\n");
}
@ -197,7 +197,7 @@ struct inode *ufs_new_inode(struct inode *dir, umode_t mode)
uspi = sbi->s_uspi;
usb1 = ubh_get_usb_first(uspi);
lock_super (sb);
mutex_lock(&sbi->s_lock);
/*
* Try to place the inode in its parent directory
@ -333,20 +333,20 @@ cg_found:
brelse(bh);
}
unlock_super (sb);
mutex_unlock(&sbi->s_lock);
UFSD("allocating inode %lu\n", inode->i_ino);
UFSD("EXIT\n");
return inode;
fail_remove_inode:
unlock_super(sb);
mutex_unlock(&sbi->s_lock);
clear_nlink(inode);
iput(inode);
UFSD("EXIT (FAILED): err %d\n", err);
return ERR_PTR(err);
failed:
unlock_super (sb);
mutex_unlock(&sbi->s_lock);
make_bad_inode(inode);
iput (inode);
UFSD("EXIT (FAILED): err %d\n", err);

21
fs/ufs/super.c
View File

@ -699,7 +699,7 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
unsigned flags;
lock_ufs(sb);
lock_super(sb);
mutex_lock(&UFS_SB(sb)->s_lock);
UFSD("ENTER\n");
@ -717,7 +717,7 @@ static int ufs_sync_fs(struct super_block *sb, int wait)
ufs_put_cstotal(sb);
UFSD("EXIT\n");
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
@ -805,6 +805,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
}
#endif
mutex_init(&sbi->mutex);
mutex_init(&sbi->s_lock);
spin_lock_init(&sbi->work_lock);
INIT_DELAYED_WORK(&sbi->sync_work, delayed_sync_fs);
/*
@ -1280,7 +1281,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
unsigned flags;
lock_ufs(sb);
lock_super(sb);
mutex_lock(&UFS_SB(sb)->s_lock);
uspi = UFS_SB(sb)->s_uspi;
flags = UFS_SB(sb)->s_flags;
usb1 = ubh_get_usb_first(uspi);
@ -1294,7 +1295,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt = 0;
ufs_set_opt (new_mount_opt, ONERROR_LOCK);
if (!ufs_parse_options (data, &new_mount_opt)) {
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
@ -1302,14 +1303,14 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
new_mount_opt |= ufstype;
} else if ((new_mount_opt & UFS_MOUNT_UFSTYPE) != ufstype) {
printk("ufstype can't be changed during remount\n");
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
UFS_SB(sb)->s_mount_opt = new_mount_opt;
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}
@ -1334,7 +1335,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
#ifndef CONFIG_UFS_FS_WRITE
printk("ufs was compiled with read-only support, "
"can't be mounted as read-write\n");
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
#else
@ -1344,13 +1345,13 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
ufstype != UFS_MOUNT_UFSTYPE_SUNx86 &&
ufstype != UFS_MOUNT_UFSTYPE_UFS2) {
printk("this ufstype is read-only supported\n");
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EINVAL;
}
if (!ufs_read_cylinder_structures(sb)) {
printk("failed during remounting\n");
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return -EPERM;
}
@ -1358,7 +1359,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
#endif
}
UFS_SB(sb)->s_mount_opt = new_mount_opt;
unlock_super(sb);
mutex_unlock(&UFS_SB(sb)->s_lock);
unlock_ufs(sb);
return 0;
}

1
fs/ufs/ufs.h
View File

@ -24,6 +24,7 @@ struct ufs_sb_info {
int work_queued; /* non-zero if the delayed work is queued */
struct delayed_work sync_work; /* FS sync delayed work */
spinlock_t work_lock; /* protects sync_work and work_queued */
struct mutex s_lock;
};
struct ufs_inode_info {

3
fs/xfs/xfs_export.c
View File

@ -189,6 +189,9 @@ xfs_fs_fh_to_parent(struct super_block *sb, struct fid *fid,
struct xfs_fid64 *fid64 = (struct xfs_fid64 *)fid;
struct inode *inode = NULL;
if (fh_len < xfs_fileid_length(fileid_type))
return NULL;
switch (fileid_type) {
case FILEID_INO32_GEN_PARENT:
inode = xfs_nfs_get_inode(sb, fid->i32.parent_ino,

5
include/linux/fs.h
View File

@ -1136,7 +1136,7 @@ static inline int file_check_writeable(struct file *filp)
#if BITS_PER_LONG==32
#define MAX_LFS_FILESIZE (((loff_t)PAGE_CACHE_SIZE << (BITS_PER_LONG-1))-1)
#elif BITS_PER_LONG==64
#define MAX_LFS_FILESIZE ((loff_t)0x7fffffffffffffff)
#define MAX_LFS_FILESIZE ((loff_t)0x7fffffffffffffffLL)
#endif
#define FL_POSIX 1
@ -1511,7 +1511,6 @@ struct super_block {
unsigned long s_magic;
struct dentry *s_root;
struct rw_semaphore s_umount;
struct mutex s_lock;
int s_count;
atomic_t s_active;
#ifdef CONFIG_SECURITY
@ -2080,7 +2079,7 @@ extern struct vfsmount *kern_mount_data(struct file_system_type *, void *data);
extern void kern_unmount(struct vfsmount *mnt);
extern int may_umount_tree(struct vfsmount *);
extern int may_umount(struct vfsmount *);
extern long do_mount(char *, char *, char *, unsigned long, void *);
extern long do_mount(const char *, const char *, const char *, unsigned long, void *);
extern struct vfsmount *collect_mounts(struct path *);
extern void drop_collected_mounts(struct vfsmount *);
extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,

19
include/linux/lglock.h
View File

@ -32,20 +32,13 @@
#define br_write_lock(name) lg_global_lock(name)
#define br_write_unlock(name) lg_global_unlock(name)
#define DEFINE_BRLOCK(name) DEFINE_LGLOCK(name)
#define DEFINE_BRLOCK(name) DEFINE_LGLOCK(name)
#define DEFINE_STATIC_BRLOCK(name) DEFINE_STATIC_LGLOCK(name)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define LOCKDEP_INIT_MAP lockdep_init_map
#define DEFINE_LGLOCK_LOCKDEP(name) \
struct lock_class_key name##_lock_key; \
struct lockdep_map name##_lock_dep_map; \
EXPORT_SYMBOL(name##_lock_dep_map)
#else
#define LOCKDEP_INIT_MAP(a, b, c, d)
#define DEFINE_LGLOCK_LOCKDEP(name)
#endif
struct lglock {
@ -57,11 +50,15 @@ struct lglock {
};
#define DEFINE_LGLOCK(name) \
DEFINE_LGLOCK_LOCKDEP(name); \
DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
= __ARCH_SPIN_LOCK_UNLOCKED; \
struct lglock name = { .lock = &name ## _lock }
#define DEFINE_STATIC_LGLOCK(name) \
static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \
= __ARCH_SPIN_LOCK_UNLOCKED; \
static struct lglock name = { .lock = &name ## _lock }
void lg_lock_init(struct lglock *lg, char *name);
void lg_local_lock(struct lglock *lg);
void lg_local_unlock(struct lglock *lg);

12
include/linux/security.h
View File

@ -1411,8 +1411,8 @@ struct security_operations {
int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
int (*sb_statfs) (struct dentry *dentry);
int (*sb_mount) (char *dev_name, struct path *path,
char *type, unsigned long flags, void *data);
int (*sb_mount) (const char *dev_name, struct path *path,
const char *type, unsigned long flags, void *data);
int (*sb_umount) (struct vfsmount *mnt, int flags);
int (*sb_pivotroot) (struct path *old_path,
struct path *new_path);
@ -1694,8 +1694,8 @@ int security_sb_remount(struct super_block *sb, void *data);
int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
int security_sb_statfs(struct dentry *dentry);
int security_sb_mount(char *dev_name, struct path *path,
char *type, unsigned long flags, void *data);
int security_sb_mount(const char *dev_name, struct path *path,
const char *type, unsigned long flags, void *data);
int security_sb_umount(struct vfsmount *mnt, int flags);
int security_sb_pivotroot(struct path *old_path, struct path *new_path);
int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
@ -1964,8 +1964,8 @@ static inline int security_sb_statfs(struct dentry *dentry)
return 0;
}
static inline int security_sb_mount(char *dev_name, struct path *path,
char *type, unsigned long flags,
static inline int security_sb_mount(const char *dev_name, struct path *path,
const char *type, unsigned long flags,
void *data)
{
return 0;

2
kernel/audit.c
View File

@ -1440,6 +1440,8 @@ void audit_log_link_denied(const char *operation, struct path *link)
ab = audit_log_start(current->audit_context, GFP_KERNEL,
AUDIT_ANOM_LINK);
if (!ab)
return;
audit_log_format(ab, "op=%s action=denied", operation);
audit_log_format(ab, " pid=%d comm=", current->pid);
audit_log_untrustedstring(ab, current->comm);

6
mm/shmem.c
View File

@ -2220,12 +2220,14 @@ static struct dentry *shmem_fh_to_dentry(struct super_block *sb,
{
struct inode *inode;
struct dentry *dentry = NULL;
u64 inum = fid->raw[2];
inum = (inum << 32) | fid->raw[1];
u64 inum;
if (fh_len < 3)
return NULL;
inum = fid->raw[2];
inum = (inum << 32) | fid->raw[1];
inode = ilookup5(sb, (unsigned long)(inum + fid->raw[0]),
shmem_match, fid->raw);
if (inode) {

4
security/capability.c
View File

@ -74,8 +74,8 @@ static int cap_sb_statfs(struct dentry *dentry)
return 0;
}
static int cap_sb_mount(char *dev_name, struct path *path, char *type,
unsigned long flags, void *data)
static int cap_sb_mount(const char *dev_name, struct path *path,
const char *type, unsigned long flags, void *data)
{
return 0;
}

4
security/security.c
View File

@ -276,8 +276,8 @@ int security_sb_statfs(struct dentry *dentry)
return security_ops->sb_statfs(dentry);
}
int security_sb_mount(char *dev_name, struct path *path,
char *type, unsigned long flags, void *data)
int security_sb_mount(const char *dev_name, struct path *path,
const char *type, unsigned long flags, void *data)
{
return security_ops->sb_mount(dev_name, path, type, flags, data);
}

4
security/selinux/hooks.c
View File

@ -2452,9 +2452,9 @@ static int selinux_sb_statfs(struct dentry *dentry)
return superblock_has_perm(cred, dentry->d_sb, FILESYSTEM__GETATTR, &ad);
}
static int selinux_mount(char *dev_name,
static int selinux_mount(const char *dev_name,
struct path *path,
char *type,
const char *type,
unsigned long flags,
void *data)
{

4
security/smack/smack_lsm.c
View File

@ -408,8 +408,8 @@ static int smack_sb_statfs(struct dentry *dentry)
* Returns 0 if current can write the floor of the filesystem
* being mounted on, an error code otherwise.
*/
static int smack_sb_mount(char *dev_name, struct path *path,
char *type, unsigned long flags, void *data)
static int smack_sb_mount(const char *dev_name, struct path *path,
const char *type, unsigned long flags, void *data)
{
struct superblock_smack *sbp = path->dentry->d_sb->s_security;
struct smk_audit_info ad;

2
security/tomoyo/common.h
View File

@ -970,7 +970,7 @@ int tomoyo_init_request_info(struct tomoyo_request_info *r,
const u8 index);
int tomoyo_mkdev_perm(const u8 operation, struct path *path,
const unsigned int mode, unsigned int dev);
int tomoyo_mount_permission(char *dev_name, struct path *path,
int tomoyo_mount_permission(const char *dev_name, struct path *path,
const char *type, unsigned long flags,
void *data_page);
int tomoyo_open_control(const u8 type, struct file *file);

5
security/tomoyo/mount.c
View File

@ -71,7 +71,8 @@ static bool tomoyo_check_mount_acl(struct tomoyo_request_info *r,
*
* Caller holds tomoyo_read_lock().
*/
static int tomoyo_mount_acl(struct tomoyo_request_info *r, char *dev_name,
static int tomoyo_mount_acl(struct tomoyo_request_info *r,
const char *dev_name,
struct path *dir, const char *type,
unsigned long flags)
{
@ -183,7 +184,7 @@ static int tomoyo_mount_acl(struct tomoyo_request_info *r, char *dev_name,
*
* Returns 0 on success, negative value otherwise.
*/
int tomoyo_mount_permission(char *dev_name, struct path *path,
int tomoyo_mount_permission(const char *dev_name, struct path *path,
const char *type, unsigned long flags,
void *data_page)
{

4
security/tomoyo/tomoyo.c
View File

@ -408,8 +408,8 @@ static int tomoyo_path_chroot(struct path *path)
*
* Returns 0 on success, negative value otherwise.
*/
static int tomoyo_sb_mount(char *dev_name, struct path *path,
char *type, unsigned long flags, void *data)
static int tomoyo_sb_mount(const char *dev_name, struct path *path,
const char *type, unsigned long flags, void *data)
{
return tomoyo_mount_permission(dev_name, path, type, flags, data);
}