dlm: Change rwlock which is only used in write mode to a spinlock

The ls_dirtbl[].lock was an rwlock, but since it was only used in write
mode a spinlock will suffice.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index aa32e5f02493..cd8e2df3c295 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -487,7 +487,7 @@ static int new_lockspace(char *name, int namelen, void **lockspace,
                 goto out_lkbfree;
         for (i = 0; i < size; i++) {
                 INIT_LIST_HEAD(&ls->ls_dirtbl[i].list);
-                rwlock_init(&ls->ls_dirtbl[i].lock);
+                spin_lock_init(&ls->ls_dirtbl[i].lock);
         }
 
         INIT_LIST_HEAD(&ls->ls_waiters);