From patchwork Tue Oct 31 18:59:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 13442210 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 0DD9FC4332F for ; Tue, 31 Oct 2023 19:04:26 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qxtyO-0004Jd-LJ; Tue, 31 Oct 2023 15:00:20 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qxty5-00047d-GT for qemu-devel@nongnu.org; Tue, 31 Oct 2023 15:00:04 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qxtxk-00068H-9j for qemu-devel@nongnu.org; Tue, 31 Oct 2023 15:00:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1698778778; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4CuwuVHIzzuQHItZTvM9/+Limg0335MhIuSQTwYUEIM=; b=ICkuCHqhdlR3lX8zanLjlQqfFYRbVlv6c5MpXX8rN2BrRtYy2eUBsuSBQtKmwquH3PeC9Y MAua123Yez9v3nuYTQuKYQexWLFk6r3BVSngd/kaYsQ4N053whGB01IPOucyccc4N6RkE9 8Ya0jWqApxUqqna2+l8fpgG+bOJ7wsg= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-695-oADW7jDpOmqv_xn17SBbrg-1; Tue, 31 Oct 2023 14:59:37 -0400 X-MC-Unique: oADW7jDpOmqv_xn17SBbrg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id EA7173C0BE54; Tue, 31 Oct 2023 18:59:36 +0000 (UTC) Received: from merkur.fritz.box (unknown [10.39.194.218]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5697D2E0; Tue, 31 Oct 2023 18:59:36 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [PULL 20/27] block/mirror: move dirty bitmap to filter Date: Tue, 31 Oct 2023 19:59:11 +0100 Message-ID: <20231031185918.346940-21-kwolf@redhat.com> In-Reply-To: <20231031185918.346940-1-kwolf@redhat.com> References: <20231031185918.346940-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.481, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Fiona Ebner In preparation to allow switching to active mode without draining. Initialization of the bitmap in mirror_dirty_init() still happens with the original/backing BlockDriverState, which should be fine, because the mirror top has the same length. Suggested-by: Vladimir Sementsov-Ogievskiy Signed-off-by: Fiona Ebner Message-ID: <20231031135431.393137-4-f.ebner@proxmox.com> Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- block/mirror.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/block/mirror.c b/block/mirror.c index 1c2c00ee1d..914d723446 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -1500,6 +1500,11 @@ bdrv_mirror_top_do_write(BlockDriverState *bs, MirrorMethod method, abort(); } + if (!copy_to_target && s->job && s->job->dirty_bitmap) { + s->job->actively_synced = false; + bdrv_set_dirty_bitmap(s->job->dirty_bitmap, offset, bytes); + } + if (ret < 0) { goto out; } @@ -1823,13 +1828,17 @@ static BlockJob *mirror_start_job( s->should_complete = true; } - s->dirty_bitmap = bdrv_create_dirty_bitmap(bs, granularity, NULL, errp); + s->dirty_bitmap = bdrv_create_dirty_bitmap(s->mirror_top_bs, granularity, + NULL, errp); if (!s->dirty_bitmap) { goto fail; } - if (s->copy_mode == MIRROR_COPY_MODE_WRITE_BLOCKING) { - bdrv_disable_dirty_bitmap(s->dirty_bitmap); - } + + /* + * The dirty bitmap is set by bdrv_mirror_top_do_write() when not in active + * mode. + */ + bdrv_disable_dirty_bitmap(s->dirty_bitmap); ret = block_job_add_bdrv(&s->common, "source", bs, 0, BLK_PERM_WRITE_UNCHANGED | BLK_PERM_WRITE |