From nobody Mon Feb 9 19:53:47 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1dmarc=pass fromdomain=virtuozzo.com); dmarc=pass(p=quarantine dis=none) header.from=virtuozzo.com ARC-Seal: i=2; a=rsa-sha256; t=1600373445; cv=pass; d=zohomail.com; s=zohoarc; b=glPmTIvAwvietoUc7WVGTK3qRNzCFjeGambfN963YD6g/H3Yb5ojRb3Ox+4tAUbGyZkKU1jm97Vqb0ZsQe8x/0Sh9uqzchuaMvoi3I220FhETZ1iNlB5VkqXAF0JpPaYVvWuVQ6hVFCBUFNq9bZmR+xhIqkNcp2SFaxoOU1XbF0= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1600373445; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=H+Fls0lS3+gGSaFUfNMd3ddkHBrg0Lmqh3fozjASBjo=; b=F9Zd+Vy+KA0hHvN2L4arGtg7u41KXInLaF5fllIekvpA07zVL5AXOirif3AKJfwY7CtrKJ9jFpFJGqmfr+ykTmMqzDQcOl+OLn+xUn8Zj9h+0fk0HwxGvgKCsSMTGAopXhhHNRTfjrsigK88wUtguBBgoBvdW7Fe9/2NA4DPaKU= ARC-Authentication-Results: i=2; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; arc=pass (i=1dmarc=pass fromdomain=virtuozzo.com); dmarc=pass header.from= (p=quarantine dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1600373445845906.9033916506825; Thu, 17 Sep 2020 13:10:45 -0700 (PDT) Received: from localhost ([::1]:43454 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kJ0Eu-0000MP-EE for importer@patchew.org; Thu, 17 Sep 2020 16:10:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59558) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kJ00n-00039R-3Q; Thu, 17 Sep 2020 15:56:09 -0400 Received: from mail-eopbgr30122.outbound.protection.outlook.com ([40.107.3.122]:56995 helo=EUR03-AM5-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 1kJ00l-0005tE-0O; Thu, 17 Sep 2020 15:56:08 -0400 Received: from AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) by AM6PR08MB5254.eurprd08.prod.outlook.com (2603:10a6:20b:d6::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3370.16; Thu, 17 Sep 2020 19:55:48 +0000 Received: from AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::b179:9641:7589:d692]) by AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::b179:9641:7589:d692%8]) with mapi id 15.20.3370.019; Thu, 17 Sep 2020 19:55:48 +0000 Received: from kvm.sw.ru (185.215.60.75) by AM4PR05CA0011.eurprd05.prod.outlook.com (2603:10a6:205::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3391.11 via Frontend Transport; Thu, 17 Sep 2020 19:55:47 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=QqIWSxZtuRonSPn1viqCxq/tX14kLLY6LMVPaBUyqBbiArhgN0yipNJi2kyKYJ3qa0wSpu91VWDtHvfFi/0zbBRGirsc1eAWb2vMTfBVRddSbOysYpHjjw87HNtH77191498f92EW49sJ7gUoiJQ+68UJ603rGmID7ckrxX6hHYn2VNAjDLs2Amw+fPtJGRsdERQd2o8yvC05CwRpmvtMNynSAA6Bai8hhVjyYlLT+FI6BkG9GFHACcmCQv3eyhDgBuyelLiVsRclVvl5o4z54AYzGC05gk+06wS33QTvCWzUqt0gXhHeORCNuzkLG58Qs+Y70qrXhL4zQyCd21LyA== 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=H+Fls0lS3+gGSaFUfNMd3ddkHBrg0Lmqh3fozjASBjo=; b=R0NAUJGR0S8hr0s15sUyiUQaVPUXe4hCioBxfo6kiEhbYTItG4kA6gJxxg6ectF+gUDN2SuNKvvKaKO9dYG55H889s3qc/CpuphIB+JMqs7uv/rU5epaE/b5fypvf1sKNugsaZFmumbM2b1gLGluLdml4zXJjhKgdS6h+5syqehNnjEWFq12hjldfubEbHZ8/PSttE0x6U3RO8bOzg8l5gAfr8DxE7CHypL1gAh3J9Uaz2j+9nYEsYMJr04CpNgNMSJZFaE/dsbgq2yAuxrQmU/kQ5R/BfogTByYZbWNBk8MZ3OYaGbzlbwV0lTQBoTi4Fpqm0VWc19VZQB/7O2RzA== 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=H+Fls0lS3+gGSaFUfNMd3ddkHBrg0Lmqh3fozjASBjo=; b=ObAHPK5lZ/EGbk8HQowcGQeFitFRh87RGxmWmp1l5RTDA7osVQDmh14bZvrM879sIQFuxsIjDoJFSBWtwcVtjgeDslFgy3FFyrzgQueNycSoSLPSOAJmrEekd54Cz2BxZdg/rxGbK7infNBi58ktrvRHA2nobloqsyPDNaAeVlY= Authentication-Results: nongnu.org; dkim=none (message not signed) header.d=none;nongnu.org; dmarc=none action=none header.from=virtuozzo.com; From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, armbru@redhat.com, berto@igalia.com, vsementsov@virtuozzo.com, eblake@redhat.com, jsnow@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, pavel.dovgaluk@ispras.ru, ari@tuxera.com, mreitz@redhat.com, kwolf@redhat.com, groug@kaod.org Subject: [PATCH v2 13/13] block/qed: bdrv_qed_do_open: deal with errp Date: Thu, 17 Sep 2020 22:55:19 +0300 Message-Id: <20200917195519.19589-14-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20200917195519.19589-1-vsementsov@virtuozzo.com> References: <20200917195519.19589-1-vsementsov@virtuozzo.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: AM4PR05CA0011.eurprd05.prod.outlook.com (2603:10a6:205::24) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-Mailer: git-send-email 2.21.3 X-Originating-IP: [185.215.60.75] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 837cf95c-e4f5-4e43-f52c-08d85b43ac21 X-MS-TrafficTypeDiagnostic: AM6PR08MB5254: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:826; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: mQ1X36frrKbMb7pM2eCh/EHywhJHwehpEKAnWT1c26MwlyuYyZ+ZrDo8Or3DkPBZNhAjeCJYriZ7Azavq5rYf2uXFaCmsJJ/4Srjp+RPHoDZ7eZmH7YjNRaAo6A/XVCjanpkbJ0TYKmbpliH5LqA+c0qwpDapREyt6t4pdtDjATSSZ3sybd+T5qPKJosGz7407Rf/ppZaTp96/FycfiRveSVdJv8bmZ5UTLGO58jy0WrbFh1U4lJCXF+xMsB6gzv+34ZS2eKgY3u2k6Z5DWoq91Xa4ZN++UnVm3Zft2o7emUiQpVyTPxBDEBjLnDevZSkIL8tpSj7CtPzg5Vc29h8w== 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; SFS:(4636009)(39850400004)(346002)(376002)(366004)(396003)(136003)(6486002)(316002)(6666004)(16526019)(186003)(6916009)(8936002)(8676002)(26005)(2906002)(7416002)(52116002)(6506007)(478600001)(6512007)(4326008)(86362001)(66556008)(66476007)(36756003)(66946007)(956004)(2616005)(83380400001)(1076003)(5660300002); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 837cf95c-e4f5-4e43-f52c-08d85b43ac21 X-MS-Exchange-CrossTenant-AuthSource: AM7PR08MB5494.eurprd08.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Sep 2020 19:55:48.3221 (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: iHe4pjninx10irMSEKlha7XXWrrlPLdqpTaYQJTpxqSS4a5L2nQWwqMpH19ZT81wipntTWBP+kTdBj/7f3qmpoOwpabh+rj3hbO7lVojpNI= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR08MB5254 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.3.122; envelope-from=vsementsov@virtuozzo.com; helo=EUR03-AM5-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/17 15:55:46 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) Content-Type: text/plain; charset="utf-8" Set errp always on failure. Generic bdrv_open_driver supports driver functions which can return negative value and forget to set errp. That's a strange thing.. Let's improve bdrv_qed_do_open to not behave this way. This allows to simplify code in bdrv_qed_co_invalidate_cache(). Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Alberto Garcia Reviewed-by: Greg Kurz --- block/qed.c | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/block/qed.c b/block/qed.c index b27e7546ca..f45c640513 100644 --- a/block/qed.c +++ b/block/qed.c @@ -393,6 +393,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverSta= te *bs, QDict *options, =20 ret =3D bdrv_pread(bs->file, 0, &le_header, sizeof(le_header)); if (ret < 0) { + error_setg(errp, "Failed to read QED header"); return ret; } qed_header_le_to_cpu(&le_header, &s->header); @@ -408,25 +409,30 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverS= tate *bs, QDict *options, return -ENOTSUP; } if (!qed_is_cluster_size_valid(s->header.cluster_size)) { + error_setg(errp, "QED cluster size is invalid"); return -EINVAL; } =20 /* Round down file size to the last cluster */ file_size =3D bdrv_getlength(bs->file->bs); if (file_size < 0) { + error_setg(errp, "Failed to get file length"); return file_size; } s->file_size =3D qed_start_of_cluster(s, file_size); =20 if (!qed_is_table_size_valid(s->header.table_size)) { + error_setg(errp, "QED table size is invalid"); return -EINVAL; } if (!qed_is_image_size_valid(s->header.image_size, s->header.cluster_size, s->header.table_size)) { + error_setg(errp, "QED image size is invalid"); return -EINVAL; } if (!qed_check_table_offset(s, s->header.l1_table_offset)) { + error_setg(errp, "QED table offset is invalid"); return -EINVAL; } =20 @@ -438,6 +444,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverSta= te *bs, QDict *options, =20 /* Header size calculation must not overflow uint32_t */ if (s->header.header_size > UINT32_MAX / s->header.cluster_size) { + error_setg(errp, "QED header size is too large"); return -EINVAL; } =20 @@ -445,6 +452,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverSta= te *bs, QDict *options, if ((uint64_t)s->header.backing_filename_offset + s->header.backing_filename_size > s->header.cluster_size * s->header.header_size) { + error_setg(errp, "QED backing filename offset is invalid"); return -EINVAL; } =20 @@ -453,6 +461,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverSta= te *bs, QDict *options, bs->auto_backing_file, sizeof(bs->auto_backing_file)); if (ret < 0) { + error_setg(errp, "Failed to read backing filename"); return ret; } pstrcpy(bs->backing_file, sizeof(bs->backing_file), @@ -475,6 +484,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverSta= te *bs, QDict *options, =20 ret =3D qed_write_header_sync(s); if (ret) { + error_setg(errp, "Failed to update header"); return ret; } =20 @@ -487,6 +497,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverSta= te *bs, QDict *options, =20 ret =3D qed_read_l1_table_sync(s); if (ret) { + error_setg(errp, "Failed to read L1 table"); goto out; } =20 @@ -503,6 +514,7 @@ static int coroutine_fn bdrv_qed_do_open(BlockDriverSta= te *bs, QDict *options, =20 ret =3D qed_check(s, &result, true); if (ret) { + error_setg(errp, "Image corrupted"); goto out; } } @@ -1537,22 +1549,16 @@ static void coroutine_fn bdrv_qed_co_invalidate_cac= he(BlockDriverState *bs, Error **errp) { BDRVQEDState *s =3D bs->opaque; - Error *local_err =3D NULL; int ret; =20 bdrv_qed_close(bs); =20 bdrv_qed_init_state(bs); qemu_co_mutex_lock(&s->table_lock); - ret =3D bdrv_qed_do_open(bs, NULL, bs->open_flags, &local_err); + ret =3D bdrv_qed_do_open(bs, NULL, bs->open_flags, errp); qemu_co_mutex_unlock(&s->table_lock); - if (local_err) { - error_propagate_prepend(errp, local_err, - "Could not reopen qed layer: "); - return; - } else if (ret < 0) { - error_setg_errno(errp, -ret, "Could not reopen qed layer"); - return; + if (ret < 0) { + error_prepend(errp, "Could not reopen qed layer: "); } } =20 --=20 2.21.3