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| author |   Ingo Molnar <mingo@elte.hu> | 2006-01-09 15:59:25 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@hera.kernel.org> | 2006-01-09 15:59:25 -0800 |
| commit | 7892f2f48d165a34b0b8130c8a195dfd807b8cb6 (patch) | |
| tree | 592b29350c168aa5758700820ab22fb56e72a567 /include/linux/fs.h | |
| parent | [PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem (diff) | |
| download | linux-dev-7892f2f48d165a34b0b8130c8a195dfd807b8cb6.tar.xz linux-dev-7892f2f48d165a34b0b8130c8a195dfd807b8cb6.zip | |
[PATCH] mutex subsystem, semaphore to mutex: VFS, sb->s_lock
This patch converts the superblock-lock semaphore to a mutex, affecting
lock_super()/unlock_super(). Tested on ext3 and XFS.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 01654b218e42..92ae3e2067b0 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -821,7 +821,7 @@ struct super_block { unsigned long s_magic; struct dentry *s_root; struct rw_semaphore s_umount; - struct semaphore s_lock; + struct mutex s_lock; int s_count; int s_syncing; int s_need_sync_fs; @@ -893,13 +893,13 @@ static inline int has_fs_excl(void) static inline void lock_super(struct super_block * sb) { get_fs_excl(); - down(&sb->s_lock); + mutex_lock(&sb->s_lock); } static inline void unlock_super(struct super_block * sb) { put_fs_excl(); - up(&sb->s_lock); + mutex_unlock(&sb->s_lock); } /* |