[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/read_write.c b/fs/read_write.c
index df3468a..3f7a1a6 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -33,7 +33,7 @@
long long retval;
struct inode *inode = file->f_mapping->host;
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
switch (origin) {
case 2:
offset += inode->i_size;
@@ -49,7 +49,7 @@
}
retval = offset;
}
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
return retval;
}