From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753805AbaJ0TEk (ORCPT ); Mon, 27 Oct 2014 15:04:40 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:52887 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752995AbaJ0TEh (ORCPT ); Mon, 27 Oct 2014 15:04:37 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Benjamin Coddington , Trond Myklebust , Kamal Mostafa Subject: [PATCH 3.13 047/105] lockd: Try to reconnect if statd has moved Date: Mon, 27 Oct 2014 11:56:22 -0700 Message-Id: <1414436240-13879-48-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1414436240-13879-1-git-send-email-kamal@canonical.com> References: <1414436240-13879-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.13 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.13.11.10 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Benjamin Coddington commit 173b3afceebe76fa2205b2c8808682d5b541fe3c upstream. If rpc.statd is restarted, upcalls to monitor hosts can fail with ECONNREFUSED. In that case force a lookup of statd's new port and retry the upcall. Signed-off-by: Benjamin Coddington Signed-off-by: Trond Myklebust Signed-off-by: Kamal Mostafa --- fs/lockd/mon.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index 1812f02..6ae664b 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -159,6 +159,12 @@ static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res, msg.rpc_proc = &clnt->cl_procinfo[proc]; status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFTCONN); + if (status == -ECONNREFUSED) { + dprintk("lockd: NSM upcall RPC failed, status=%d, forcing rebind\n", + status); + rpc_force_rebind(clnt); + status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFTCONN); + } if (status < 0) dprintk("lockd: NSM upcall RPC failed, status=%d\n", status); -- 1.9.1