[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/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index fe373a2..149b351 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -334,7 +334,7 @@
goto bail;
}
- down(&inode->i_sem);
+ mutex_lock(&inode->i_mutex);
status = ocfs2_read_block(osb, OCFS2_I(inode)->ip_blkno,
&alloc_bh, 0, inode);
@@ -367,7 +367,7 @@
brelse(alloc_bh);
if (inode) {
- up(&inode->i_sem);
+ mutex_unlock(&inode->i_mutex);
iput(inode);
}
@@ -446,7 +446,7 @@
/*
* make sure we've got at least bitswanted contiguous bits in the
- * local alloc. You lose them when you drop i_sem.
+ * local alloc. You lose them when you drop i_mutex.
*
* We will add ourselves to the transaction passed in, but may start
* our own in order to shift windows.