From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1424179AbcFMWbE (ORCPT ); Mon, 13 Jun 2016 18:31:04 -0400 Received: from zimbra13.linbit.com ([212.69.166.240]:36328 "EHLO zimbra13.linbit.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1424380AbcFMW0u (ORCPT ); Mon, 13 Jun 2016 18:26:50 -0400 X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "References" X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "References" From: Philipp Reisner To: Jens Axboe , linux-kernel@vger.kernel.org Cc: drbd-dev@lists.linbit.com Subject: [PATCH 19/30] drbd: only restart frozen disk io when D_UP_TO_DATE Date: Tue, 14 Jun 2016 00:26:28 +0200 Message-Id: <1465856799-2151-20-git-send-email-philipp.reisner@linbit.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <575ECD32.2080700@fb.com> References: <575ECD32.2080700@fb.com> In-Reply-To: <575ECD32.2080700@fb.com> References: <575ECD32.2080700@fb.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lars Ellenberg When re-attaching the local backend device to a C_STANDALONE D_DISKLESS R_PRIMARY with OND_SUSPEND_IO, we may only resume IO if we recognize the backend that is being attached as D_UP_TO_DATE. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_state.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index 59c6467..24422e8 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -1675,7 +1675,7 @@ static void after_state_ch(struct drbd_device *device, union drbd_state os, what = RESEND; if ((os.disk == D_ATTACHING || os.disk == D_NEGOTIATING) && - conn_lowest_disk(connection) > D_NEGOTIATING) + conn_lowest_disk(connection) == D_UP_TO_DATE) what = RESTART_FROZEN_DISK_IO; if (resource->susp_nod && what != NOTHING) { -- 2.7.4