From 7892f2f48d165a34b0b8130c8a195dfd807b8cb6 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jan 2006 15:59:25 -0800 Subject: [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 --- include/linux/fs.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') 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); } /* -- cgit v1.2.2