[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.
Modified-by: Ingo Molnar <mingo@elte.hu>
(finished the conversion)
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 05deddd..63d2980 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -560,9 +560,9 @@
struct inode *inode = file->f_dentry->d_inode;
ssize_t res;
/* Don't allow parallel writes to the same file */
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
res = fuse_direct_io(file, buf, count, ppos, 1);
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
return res;
}