From patchwork Fri Aug 6 09:38:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Reitz X-Patchwork-Id: 12423033 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3AA2DC4338F for ; Fri, 6 Aug 2021 09:42:22 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A6F6761040 for ; Fri, 6 Aug 2021 09:42:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A6F6761040 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:50828 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mBwMu-0005D3-MJ for qemu-devel@archiver.kernel.org; Fri, 06 Aug 2021 05:42:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45632) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mBwJr-0006Jf-FS for qemu-devel@nongnu.org; Fri, 06 Aug 2021 05:39:11 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:34019) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mBwJo-0003ce-TQ for qemu-devel@nongnu.org; Fri, 06 Aug 2021 05:39:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1628242748; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=g2zdDw+X/ARrSOdNDB+vpDxJpMlrUxiABfyT/XZUHYc=; b=E9yNflEI9/SqRxGAltIyt/Y1KCIftBCEuCCjmQhVcinEByqFAraQeVLex+sL42tT73hWJ3 NOUam+pkvW1+90yPQarfBOyhZaBxvXKQUST+FZ+wQNE+N3dvmJzI/nzbsJS+gZklnbMwUV DPPiltNSkt6SLnOStm+sMQvbOmbYYeY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-321-yNjOD2nIOPiQ-9Jk95Cu2A-1; Fri, 06 Aug 2021 05:39:07 -0400 X-MC-Unique: yNjOD2nIOPiQ-9Jk95Cu2A-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 00ABE87D541; Fri, 6 Aug 2021 09:39:06 +0000 (UTC) Received: from localhost (unknown [10.39.192.85]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 496F819D9D; Fri, 6 Aug 2021 09:39:05 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Subject: [PATCH for-6.2 v3 02/12] mirror: Keep s->synced on error Date: Fri, 6 Aug 2021 11:38:49 +0200 Message-Id: <20210806093859.706464-3-mreitz@redhat.com> In-Reply-To: <20210806093859.706464-1-mreitz@redhat.com> References: <20210806093859.706464-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mreitz@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=mreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.699, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Vladimir Sementsov-Ogievskiy , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" An error does not take us out of the READY phase, which is what s->synced signifies. It does of course mean that source and target are no longer in sync, but that is what s->actively_sync is for -- s->synced never meant that source and target are in sync, only that they were at some point (and at that point we transitioned into the READY phase). The tangible problem is that we transition to READY once we are in sync and s->synced is false. By resetting s->synced here, we will transition from READY to READY once the error is resolved (if the job keeps running), and that transition is not allowed. Signed-off-by: Max Reitz Reviewed-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Kevin Wolf --- block/mirror.c | 1 - 1 file changed, 1 deletion(-) diff --git a/block/mirror.c b/block/mirror.c index 98fc66eabf..d73b704473 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -121,7 +121,6 @@ typedef enum MirrorMethod { static BlockErrorAction mirror_error_action(MirrorBlockJob *s, bool read, int error) { - s->synced = false; s->actively_synced = false; if (read) { return block_job_error_action(&s->common, s->on_source_error,