[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>

fs/jffs/inode-v23.c

@@ -1415,7 +1415,7 @@ jffs_file_write(struct file *filp, const char *buf, size_t count,
 	 * This will never trigger with sane page sizes.  leave it in
 	 * anyway, since I'm thinking about how to merge larger writes
 	 * (the current idea is to poke a thread that does the actual
-	 * I/O and starts by doing a down(&inode->i_sem).  then we
+	 * I/O and starts by doing a mutex_lock(&inode->i_mutex).  then we
 	 * would need to get the page cache pages and have a list of
 	 * I/O requests and do write-merging here.
 	 * -- prumpf