[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/readdir.c b/fs/readdir.c
index b03579b..b610932 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -30,13 +30,13 @@
if (res)
goto out;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
res = -ENOENT;
if (!IS_DEADDIR(inode)) {
res = file->f_op->readdir(file, buf, filler);
file_accessed(file);
}
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
out:
return res;
}