diff options
| author | Christoph Hellwig <hch@lst.de> | 2009-05-12 01:35:03 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-12 05:36:09 +0400 |
| commit | ebc1ac164560a241d9bf1b7519062910c3f90a01 (patch) | |
| tree | db17fd3043b15f8269cce2c2d00213814022fc30 /fs/fat | |
| parent | 01ba687577647beef6c5f2ea59bfb56fac9fcde2 (diff) | |
| download | linux-ebc1ac164560a241d9bf1b7519062910c3f90a01.tar.xz | |
->write_super lock_super pushdown
Push down lock_super into ->write_super instances and remove it from the
caller.
Following filesystem don't need ->s_lock in ->write_super and are skipped:
* bfs, nilfs2 - no other uses of s_lock and have internal locks in
->write_super
* ext2 - uses BKL in ext2_write_super and has internal calls without s_lock
* reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in
->write_super
* xfs - no other uses of s_lock and uses internal lock (buffer lock on
superblock buffer) to serialize ->write_super. Also xfs_fs_write_super
is superflous and will go away in the next merge window
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fat')
| -rw-r--r-- | fs/fat/inode.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 2b88c93af227..2292cbf7d364 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -441,10 +441,12 @@ static void fat_clear_inode(struct inode *inode) static void fat_write_super(struct super_block *sb) { + lock_super(sb); sb->s_dirt = 0; if (!(sb->s_flags & MS_RDONLY)) fat_clusters_flush(sb); + unlock_super(sb); } static void fat_put_super(struct super_block *sb) |