[GFS2] Use mutices rather than semaphores

As well as a number of minor bug fixes, this patch changes GFS
to use mutices rather than semaphores. This results in better
information in case there are any locking problems.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index e06ef8dbd4d3..9130d0d0df3c 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -74,10 +74,10 @@ static void gfs2_put_super(struct super_block *sb)
 
         /*  Unfreeze the filesystem, if we need to  */
 
-        down(&sdp->sd_freeze_lock);
+        mutex_lock(&sdp->sd_freeze_lock);
         if (sdp->sd_freeze_count)
                 gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
-        up(&sdp->sd_freeze_lock);
+        mutex_unlock(&sdp->sd_freeze_lock);
 
         kthread_stop(sdp->sd_inoded_process);
         kthread_stop(sdp->sd_quotad_process);