From patchwork Thu May 21 22:06:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Sementsov-Ogievskiy X-Patchwork-Id: 1295737 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=virtuozzo.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=gmKo5KZc; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 49SkN46XmXz9sPK for ; Fri, 22 May 2020 08:11:00 +1000 (AEST) Received: from localhost ([::1]:47736 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jbtP0-0002Zh-Kb for incoming@patchwork.ozlabs.org; Thu, 21 May 2020 18:10:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56534) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jbtLS-00048E-8h; Thu, 21 May 2020 18:07:18 -0400 Received: from mail-eopbgr70104.outbound.protection.outlook.com ([40.107.7.104]:17734 helo=EUR04-HE1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jbtLR-0007vC-Dw; Thu, 21 May 2020 18:07:17 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=IZvB/5XpB6Q08tSHkPxlkrZ+8FYS7Rd4fk0Spue8g7f1kxzEGUtK1aEbaE1yIGYQk294ou5nXShmmljtG7GtLWcyYM0saIilvVL6IDp2JDwS+V4pezvQEkxPYWkkjXeGEStt8imrv2QEtz6CYW/6t0i2BFdBLv2DkFiqZ1Kbb1nz/TWUyyQAl+ZrpgDr2r4a2nhcle9LQa+vFZDx8cdOe8woUxHhzEobV13V8VzkFFKtpQyx1WKnucTMEs9LbtQyEsaBFHW1oxgFVpoGfK+j2w1zrsWe4AFgsDP9Hc04oELkGueAJJYQ1KNNtbK42NWug7yiMg/SIH/ATDxymNGrwA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Nh1oSws41SPggEtrgs3Oo8zYiqbmB66j9rd1Csi4WIY=; b=mHYfcrfqmRkauqt+p/7StBwuD6oWWqZ9k8Xw3eQO6I5auSzjRsfdXI5DPeE5JvTEQ1UGKdpjJVuhF90dmGv8bfzeXlJHwy5sUQh7hx9OBhQyvv68f0JRdPkUuGkALJiGiPs4mn8UleNZHzcxzli01HVkKOOjtVBtAHTRVZbYJ5xj2+MHMbOb2NDx/HSN1fAf1i7xhXAx7N+Fni3xBv4Z7OWR98gEUTz/0/stay+Mbo2r9gpCvp550kOxgSDuMiGLBTXZShUffftogDD8K4vhMYl2ldfKztNm08BpZUCfdWyOINg1LbxGqryr0hn+pGbnUQrpghIRbpFCMaTZpkndJA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=virtuozzo.com; dmarc=pass action=none header.from=virtuozzo.com; dkim=pass header.d=virtuozzo.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=virtuozzo.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Nh1oSws41SPggEtrgs3Oo8zYiqbmB66j9rd1Csi4WIY=; b=gmKo5KZcHf6NvJzYVlUazqJ2ywZ6deLLbUA/5XzgBVeEvGnGu6rzFzJfkCCoDMaAq99/eNA2S/KCUjfHFk/sGX66aG7/XsY568hyI6r3yrT9P5S6ZvtkDk/+SFSVPqOhkJ+12zqWtuFNsxlWFFl+pbj2c9+b+g2sil73bzQI9MA= Authentication-Results: nongnu.org; dkim=none (message not signed) header.d=none;nongnu.org; dmarc=none action=none header.from=virtuozzo.com; Received: from AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) by AM7PR08MB5512.eurprd08.prod.outlook.com (2603:10a6:20b:de::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3021.24; Thu, 21 May 2020 22:07:07 +0000 Received: from AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::a408:2f0f:bc6c:d312]) by AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::a408:2f0f:bc6c:d312%3]) with mapi id 15.20.3021.020; Thu, 21 May 2020 22:07:07 +0000 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Subject: [PATCH v4 6/6] migration/block-dirty-bitmap: forbid migration by generated node-name Date: Fri, 22 May 2020 01:06:48 +0300 Message-Id: <20200521220648.3255-7-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200521220648.3255-1-vsementsov@virtuozzo.com> References: <20200521220648.3255-1-vsementsov@virtuozzo.com> X-ClientProxiedBy: AM3PR07CA0137.eurprd07.prod.outlook.com (2603:10a6:207:8::23) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (185.215.60.167) by AM3PR07CA0137.eurprd07.prod.outlook.com (2603:10a6:207:8::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3021.12 via Frontend Transport; Thu, 21 May 2020 22:07:06 +0000 X-Mailer: git-send-email 2.21.0 X-Originating-IP: [185.215.60.167] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 93fdb6e3-2c73-4770-9fad-08d7fdd34d1b X-MS-TrafficTypeDiagnostic: AM7PR08MB5512: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:15; X-Forefront-PRVS: 041032FF37 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: WxixpQAQ+MZf1Kt5WJ3O+k9488LdLSqfELdMz0Lqyemvc9rYpXrA3h2000VLGL8otZlnrnq3VrOxUkgi108/UTesGOrc2JpCbcY1+U7PTbnl+M1Bd6I/qMxI/QiYUtzvXtF1eQT6QywlHnGeQK3Z/qIKLn2q6cyyhcad2t+a5MB4Y4dKaf6vCEddYjwieMoKLXyS9sBtXjMbH5rwTSynV/D9LJPdTioGWipwTcVRCom1XYTXzsUtzZKpXRXFp14NOY/VQuvJOgYEHo26UOAykeiCx9GtoqWmWammchDoqSAv2z4xEr2zAMKyf5Fdvv2/uCEazfRFw2U/70je5fydVGuS+xJIbq8Q8zJNRfpXk8Mkjf6pK/GFRmscIngcL0fzclkESxY5BViaBTpCB5EGvA== X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM7PR08MB5494.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(346002)(366004)(396003)(136003)(376002)(39840400004)(8676002)(6512007)(186003)(26005)(6666004)(2906002)(7416002)(16526019)(316002)(6916009)(8936002)(6486002)(36756003)(6506007)(1076003)(107886003)(478600001)(4326008)(66556008)(66476007)(86362001)(5660300002)(66946007)(52116002)(2616005)(69590400007)(956004)(14143004); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: pe0rNW1ir4LQ3ghbP5HCgW1FmaP0euIjQDpDfBTEr8btXYtrCx3ZY8PL28ihAAK3cd92047A7t2nYxCggWMcSb2kKB276ywc99pF80KHBFQZ0RRNSl6C9yM7ECqeCDSYAljnhD04V9lThpYcuv1dUpDG/qDEPG/QwjKHodHvU8YrJKGM69iAFyp5RqRbvHlBh/pD468uyCl2IpATl6VsZk4o4OOE8mSsS0GMpmR6Mg4fGC/r58CLPaI26arjiYJAfIKfxBBqIFdqrXPM/dW7iwpz1dxyuspZItei1IytUYfYVSDO8AHCkx6wsVMd2cG2Wn75Wc77Z2hsgzPUdvdo2MPqjgSrb90AynXIvFqVkRpo0wmJH+Z1/QintdMAxONGPhU1Ha8LQdWNg7H2WgSxDKaC0Sk3R00+eDruNP4w8qMojwY3d55EjXJxhMziThtYiCV0kpm1SFeaD2uVjPMhoLSerhmeBWkVwfQnvasMhuQ= X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 93fdb6e3-2c73-4770-9fad-08d7fdd34d1b X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 May 2020 22:07:07.1987 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: LPRtoBk2FVzA3DgueYwB0zBeCSIgGjqvbhV74VKlh4ep1vn6rHHcz5HKSdFG+u4SQnxYqkwUhnqpj1GObJrwkoT4fhm+vTseDLgvvm3zEvI= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM7PR08MB5512 Received-SPF: pass client-ip=40.107.7.104; envelope-from=vsementsov@virtuozzo.com; helo=EUR04-HE1-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/21 18:07:01 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: kwolf@redhat.com, fam@euphon.net, vsementsov@virtuozzo.com, quintela@redhat.com, qemu-devel@nongnu.org, mreitz@redhat.com, stefanha@redhat.com, Andrey Shinkevich , den@openvz.org, jsnow@redhat.com, dgilbert@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" It actually never worked with libvirt, as auto-generated names are different on source and destination. It's unsafe and useless to migrate by auto-generated node-names, so let's forbid it. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Andrey Shinkevich Reviewed-by: Eric Blake --- migration/block-dirty-bitmap.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/migration/block-dirty-bitmap.c b/migration/block-dirty-bitmap.c index 65f2948f07..71528581e4 100644 --- a/migration/block-dirty-bitmap.c +++ b/migration/block-dirty-bitmap.c @@ -285,6 +285,13 @@ static int add_bitmaps_to_list(BlockDriverState *bs, const char *bs_name) return -1; } + if (bs_name[0] == '#') { + error_report("Bitmap '%s' in a node with auto-generated " + "name '%s' can't be migrated", + bdrv_dirty_bitmap_name(bitmap), bs_name); + return -1; + } + FOR_EACH_DIRTY_BITMAP(bs, bitmap) { if (!bdrv_dirty_bitmap_name(bitmap)) { continue;