[DLM] res_recover_locks_count not reset when recover_locks is aborted

Red Hat BZ 213684

If a node sends an lkb to the new master (RCOM_LOCK message) during
recovery and recovery is then aborted on both nodes before it gets a
reply, the res_recover_locks_count needs to be reset to 0 so that when the
subsequent recovery comes along and sends the lkb to the new master again
the assertion doesn't trigger that checks that counter is zero.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index a5e6d18..cf9f683 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -252,6 +252,7 @@
 	spin_lock(&ls->ls_recover_list_lock);
 	list_for_each_entry_safe(r, s, &ls->ls_recover_list, res_recover_list) {
 		list_del_init(&r->res_recover_list);
+		r->res_recover_locks_count = 0;
 		dlm_put_rsb(r);
 		ls->ls_recover_list_count--;
 	}