From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1424164AbcFMOQI (ORCPT ); Mon, 13 Jun 2016 10:16:08 -0400 Received: from zimbra13.linbit.com ([212.69.166.240]:53440 "EHLO zimbra13.linbit.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423907AbcFMOPw (ORCPT ); Mon, 13 Jun 2016 10:15:52 -0400 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: Mon, 13 Jun 2016 16:09:07 +0200 Message-Id: <1465826958-19398-20-git-send-email-philipp.reisner@linbit.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1465826958-19398-1-git-send-email-philipp.reisner@linbit.com> References: <1465826958-19398-1-git-send-email-philipp.reisner@linbit.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