commit c7be761a8163d2f1ac0b606c21e4316b7abc5af7
author David Teigland <teigland@redhat.com> Wed Jan 07 16:50:41 2009 -0600
committer David Teigland <teigland@redhat.com> Thu Jan 08 15:12:39 2009 -0600
tree 1687373b56379c1c310f43b1c05ac486c67dec48
parent 892c4467e335e9050c95e0d8409c136c4dadaca2

dlm: change rsbtbl rwlock to spinlock

The rwlock is almost always used in write mode, so there's no reason
to not use a spinlock instead.

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

fs/dlm/lockspace.c

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 8d86b79..aa32e5f 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -464,7 +464,7 @@
 	for (i = 0; i < size; i++) {
 		INIT_LIST_HEAD(&ls->ls_rsbtbl[i].list);
 		INIT_LIST_HEAD(&ls->ls_rsbtbl[i].toss);
-		rwlock_init(&ls->ls_rsbtbl[i].lock);
+		spin_lock_init(&ls->ls_rsbtbl[i].lock);
 	}
 
 	size = dlm_config.ci_lkbtbl_size;