diff options
| author | Christoph Hellwig <hch@lst.de> | 2009-05-05 15:40:36 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-12 03:36:07 +0200 |
| commit | 6cfd0148425e528b859b26e436b01f23f6926224 (patch) | |
| tree | 60e3257053554ff198fe5825e6f12a00c3b4422a /fs/squashfs/super.c | |
| parent | No need to do lock_super() for exclusion in generic_shutdown_super() (diff) | |
| download | linux-6cfd0148425e528b859b26e436b01f23f6926224.tar.xz linux-6cfd0148425e528b859b26e436b01f23f6926224.zip | |
push BKL down into ->put_super
Move BKL into ->put_super from the only caller. A couple of
filesystems had trivial enough ->put_super (only kfree and NULLing of
s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most
of them probably don't need it, but I'd rather sort that out individually.
Preferably after all the other BKL pushdowns in that area.
[AV: original used to move lock_super() down as well; these changes are
removed since we don't do lock_super() at all in generic_shutdown_super()
now]
[AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/squashfs/super.c')
| -rw-r--r-- | fs/squashfs/super.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index 0adc624c956f..3b52770f46ff 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -338,6 +338,8 @@ static int squashfs_remount(struct super_block *sb, int *flags, char *data) static void squashfs_put_super(struct super_block *sb) { + lock_kernel(); + if (sb->s_fs_info) { struct squashfs_sb_info *sbi = sb->s_fs_info; squashfs_cache_delete(sbi->block_cache); @@ -350,6 +352,8 @@ static void squashfs_put_super(struct super_block *sb) kfree(sb->s_fs_info); sb->s_fs_info = NULL; } + + unlock_kernel(); } |