[DLM] more info through debugfs

Display more information from debugfs, particularly locks waiting for
a master lookup or operations waiting for a remote reply.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 3f6cb42..31ed0fe 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -446,7 +446,8 @@
 	memset(&ls->ls_stub_rsb, 0, sizeof(struct dlm_rsb));
 	ls->ls_stub_rsb.res_ls = ls;
 
-	ls->ls_debug_dentry = NULL;
+	ls->ls_debug_rsb_dentry = NULL;
+	ls->ls_debug_waiters_dentry = NULL;
 
 	init_waitqueue_head(&ls->ls_uevent_wait);
 	ls->ls_uevent_result = 0;