[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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index a452b13620a2..bed9ad76c04c 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -215,7 +215,7 @@ static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
         unsigned offset, bv_offs;
         int len, ret;
 
-        down(&mapping->host->i_sem);
+        mutex_lock(&mapping->host->i_mutex);
         index = pos >> PAGE_CACHE_SHIFT;
         offset = pos & ((pgoff_t)PAGE_CACHE_SIZE - 1);
         bv_offs = bvec->bv_offset;
@@ -278,7 +278,7 @@ static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
         }
         ret = 0;
 out:
-        up(&mapping->host->i_sem);
+        mutex_unlock(&mapping->host->i_mutex);
         return ret;
 unlock:
         unlock_page(page);