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| author | Christoph Hellwig <hch@lst.de> | 2009-05-11 23:35:03 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-06-11 21:36:09 -0400 |
| commit | ebc1ac164560a241d9bf1b7519062910c3f90a01 (patch) | |
| tree | db17fd3043b15f8269cce2c2d00213814022fc30 /fs/sysv | |
| parent | 01ba687577647beef6c5f2ea59bfb56fac9fcde2 (diff) | |
| download | linux-3.10-ebc1ac164560a241d9bf1b7519062910c3f90a01.tar.gz linux-3.10-ebc1ac164560a241d9bf1b7519062910c3f90a01.tar.bz2 linux-3.10-ebc1ac164560a241d9bf1b7519062910c3f90a01.zip | |
->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/sysv')
| -rw-r--r-- | fs/sysv/inode.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index e0a39f1fb88..a3f45fc626a 100644 --- a/fs/sysv/inode.c +++ b/fs/sysv/inode.c @@ -37,6 +37,7 @@ static void sysv_write_super(struct super_block *sb) struct sysv_sb_info *sbi = SYSV_SB(sb); unsigned long time = get_seconds(), old_time; + lock_super(sb); lock_kernel(); if (sb->s_flags & MS_RDONLY) goto clean; @@ -56,6 +57,7 @@ static void sysv_write_super(struct super_block *sb) clean: sb->s_dirt = 0; unlock_kernel(); + unlock_super(sb); } static int sysv_remount(struct super_block *sb, int *flags, char *data) |