ocfs2: retry operations when a lock is marked in recovery

Before checking for a nonexistent lock, make sure the lockres is not marked
RECOVERING. The caller will just retry and the state should be fixed up when
recovery completes.
Signed-off-by: NKurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: NMark Fasheh <mark.fasheh@oracle.com>

fs/ocfs2/dlm/dlmconvert.c

@@ -464,6 +464,12 @@ int dlm_convert_lock_handler(struct o2net_msg *msg, u32 len, void *data)
 	}
 
 	spin_lock(&res->spinlock);
+	status = __dlm_lockres_state_to_status(res);
+	if (status != DLM_NORMAL) {
+		spin_unlock(&res->spinlock);
+		dlm_error(status);
+		goto leave;
+	}
 	list_for_each(iter, &res->granted) {
 		lock = list_entry(iter, struct dlm_lock, list);
 		if (lock->ml.cookie == cnv->cookie &&
@@ -473,6 +479,20 @@ int dlm_convert_lock_handler(struct o2net_msg *msg, u32 len, void *data)
 		}
 		lock = NULL;
 	}
+	if (!lock) {
+		__dlm_print_one_lock_resource(res);
+		list_for_each(iter, &res->granted) {
+			lock = list_entry(iter, struct dlm_lock, list);
+			if (lock->ml.node == cnv->node_idx) {
+				mlog(0, "There is something here "
+				     "for node %u, lock->ml.cookie=%llu, "
+				     "cnv->cookie=%llu\n", cnv->node_idx,
+				     lock->ml.cookie, cnv->cookie);
+				break;
+			}
+		}
+		lock = NULL;
+	}
 	spin_unlock(&res->spinlock);
 	if (!lock) {
 		status = DLM_IVLOCKID;