From nobody Mon Feb 9 06:00:38 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=1603199202; cv=pass; d=zohomail.com; s=zohoarc; b=O+ixADNXP4xqNP9UH+tRYJgarbLgle5AEkyYubWE5vqB8xsu8Ga+NF316h/0oclFkjUNkzLRGzoMcAVCYxtJbBj5R9jgQ+LrnnMo7Etd0Gk/+qGcJibZhWmfHFDBLrKdSJTSZuWYoCnTb30KIYjbUKwZKnonBc+3A5ww/XPuPf8= ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1603199202; 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=LzwI6yjtID0+Lvy8WbOn3esTTKJbyyDELKSbFPHnepw=; b=ZZPzE+84FtlBRxSPHaoUGX5Wlz3pN1ypjx8wlicTFnSrparOPTb+wqi2JXdnEIsl8n0p9Oh7R8AfdzN+WP2YFZLbv8gx4nvHe1PNmLfshTHGjvFgswaT5KI9xxUdKf2ZcP4nVm+WVNFqbFHiND+Omkh/XXhRuutIKsg+D8xMwmk= 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 1603199202379605.5662870851494; Tue, 20 Oct 2020 06:06:42 -0700 (PDT) Received: from localhost ([::1]:43118 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kUrLd-0003OD-IK for importer@patchew.org; Tue, 20 Oct 2020 09:06:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47350) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kUrIt-0001aq-49; Tue, 20 Oct 2020 09:03:51 -0400 Received: from mail-eopbgr80103.outbound.protection.outlook.com ([40.107.8.103]:38727 helo=EUR04-VI1-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 1kUrIk-0005at-Uk; Tue, 20 Oct 2020 09:03:50 -0400 Received: from AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) by AM6PR08MB3030.eurprd08.prod.outlook.com (2603:10a6:209:46::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3477.21; Tue, 20 Oct 2020 13:03:34 +0000 Received: from AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::fd02:1330:f620:1243]) by AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::fd02:1330:f620:1243%9]) with mapi id 15.20.3499.018; Tue, 20 Oct 2020 13:03:34 +0000 Received: from kvm.sw.ru (185.215.60.66) by FR2P281CA0023.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:14::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3499.9 via Frontend Transport; Tue, 20 Oct 2020 13:03:33 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=jc0rrWF6mh+1YFSxCvqxPKCSuDbAPA5t77RNLaHDJ3kUAAGqnkUmF8a1gAfICSN+nt7NlOn0cBg04Ak9zZLToDXxdCl4nEcyT+C7y5ZzqOcovMi6PECW4XnWPcrT5RWAEwAsVLYs4TQ9N94eS+Q/kVc1mvy6aVwcljzz9hpUWyfTO13e6m1Mj+1p1+0K3nsYIM2mugHIHsdYndPGMK/GdHpETSWM+FjyD3UOc3V6dXE9gRdyYNgC9aiZYzMN9ew5NYN8ZtmsAGHDXckAYxB5FNBArmeB9m+T4RWiQAhQA9DDzUG4ATJqGAGkVCcA9kol65w2S4Gl3rq5LYCfGMmtcQ== 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=LzwI6yjtID0+Lvy8WbOn3esTTKJbyyDELKSbFPHnepw=; b=f5Vvw9UGSkz/VPxuG14V2Za8J1otuWn4qJGgtFAdb2CLweu6Uaf45tQhP1lHZiB6vAanyn2D7Cm1ZuGsuGdvTXAppNW1QGb5Sdn6/JvqB7dmbWZFGMXeQecTQgJRoE26VWPixIToUOBXv0pqhgnF6pRa3KRehMOWYjeej66zH6vdop0qPDaEN6LdW27eoL8tMoJI+zMrG1XTtPrn3EcHxBv/w8nfwbW/Hv/mlKm4bSgEs7tvIIpkzzgSenVqwE4PWtsXemdkreTCHVTkhMND7nQPnUVwjLrTxaX7Z+8h3MFRVE+C79HzHw/Q2vE4FCkGBUn0neqOrBhVMHgD62pF5Q== 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=LzwI6yjtID0+Lvy8WbOn3esTTKJbyyDELKSbFPHnepw=; b=bt+1Wamls8xZwzyOPim4WSLtVtGcfB/hKs9/K7IY5yC2NfWLcP3Sd4eBpGnQfppD7jQMq/F/xrZ1DXaUvCLSChU676NYskBMd97E0hr1gwhXzqLq0TLR1+NKAzJH6rBD0pj/GWlHxZTCDCHHtLlFR4VDEZNlPOBlDFtA7s4C0jE= 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, Greg Kurz Subject: [PATCH v4 08/14] block/qcow2: qcow2_get_specific_info(): drop error propagation Date: Tue, 20 Oct 2020 16:03:05 +0300 Message-Id: <20201020130311.14311-9-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20201020130311.14311-1-vsementsov@virtuozzo.com> References: <20201020130311.14311-1-vsementsov@virtuozzo.com> Content-Transfer-Encoding: quoted-printable X-Originating-IP: [185.215.60.66] X-ClientProxiedBy: FR2P281CA0023.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:14::10) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 5a333777-d9a8-4916-ea3c-08d874f88ced X-MS-TrafficTypeDiagnostic: AM6PR08MB3030: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:298; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: yWY3H7HR+84ICnsP0UZjrEYHtKWjiKDEiuWiRSx8B/2X74Cp+xcqixouPwldOlgdoFbZNY0Z5JkyBp/lIuyj9tWpSoLOxOcQ0K6RHIwSA/9kk5P/FP2iW5BM5grKT0PJ3QLy9qxljBN3DI5FzKnagMGQ/N04+6kMuVVuICYaMtshJ2Dv0w81B/FuqArjarORvX6Mu2R3bU519id9j/S/dRWmadAJ/MkJbu+HSSFWkSd3pPvGkuy8rVhYAUGB/we2K0YVC3WX7qdK/C6+C78Re2U3PSwkusoWW8YflBprCpjMtk65MyjrXHkUQg4LRbz7IiweAV5JdFIeSE28s1DVpA== 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)(346002)(396003)(366004)(376002)(39840400004)(136003)(19627235002)(316002)(5660300002)(83380400001)(66556008)(66476007)(36756003)(1076003)(66946007)(4326008)(6916009)(52116002)(86362001)(6506007)(8676002)(7416002)(956004)(6486002)(2906002)(6666004)(26005)(186003)(478600001)(16526019)(6512007)(2616005)(8936002); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5a333777-d9a8-4916-ea3c-08d874f88ced X-MS-Exchange-CrossTenant-AuthSource: AM7PR08MB5494.eurprd08.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Oct 2020 13:03:33.9681 (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: ylVsudc2fPJZgrBeg7X6chdUxai6K9CGnDfRmX5AnrFMhucS1hXCAfu2QcDr9setznmAOQ1qRkD/cNBF7KNFBUJ5TD0nqKno1+ddfR6d6tk= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR08MB3030 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=40.107.8.103; envelope-from=vsementsov@virtuozzo.com; helo=EUR04-VI1-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/20 09:03:40 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" Don't use error propagation in qcow2_get_specific_info(). For this refactor qcow2_get_bitmap_info_list, its current interface is rather weird. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Greg Kurz Reviewed-by: Alberto Garcia --- block/qcow2.h | 4 ++-- block/qcow2-bitmap.c | 28 ++++++++++++++-------------- block/qcow2.c | 10 +++------- 3 files changed, 19 insertions(+), 23 deletions(-) diff --git a/block/qcow2.h b/block/qcow2.h index 125ea9679b..024901a6ca 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -976,8 +976,8 @@ int qcow2_check_bitmaps_refcounts(BlockDriverState *bs,= BdrvCheckResult *res, void **refcount_table, int64_t *refcount_table_size); bool qcow2_load_dirty_bitmaps(BlockDriverState *bs, Error **errp); -Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(BlockDriverState *bs, - Error **errp); +bool qcow2_get_bitmap_info_list(BlockDriverState *bs, + Qcow2BitmapInfoList **info_list, Error **e= rrp); int qcow2_reopen_bitmaps_rw(BlockDriverState *bs, Error **errp); int qcow2_truncate_bitmaps_check(BlockDriverState *bs, Error **errp); void qcow2_store_persistent_dirty_bitmaps(BlockDriverState *bs, diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c index d7a31a8ddc..55cd52ab96 100644 --- a/block/qcow2-bitmap.c +++ b/block/qcow2-bitmap.c @@ -1093,30 +1093,30 @@ static Qcow2BitmapInfoFlagsList *get_bitmap_info_fl= ags(uint32_t flags) /* * qcow2_get_bitmap_info_list() * Returns a list of QCOW2 bitmap details. - * In case of no bitmaps, the function returns NULL and - * the @errp parameter is not set. - * When bitmap information can not be obtained, the function returns - * NULL and the @errp parameter is set. + * On success return true with info_list set (note, that if there are no + * bitmaps, info_list is set to NULL). + * On failure return false with errp set. */ -Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(BlockDriverState *bs, - Error **errp) +bool qcow2_get_bitmap_info_list(BlockDriverState *bs, + Qcow2BitmapInfoList **info_list, Error **e= rrp) { BDRVQcow2State *s =3D bs->opaque; Qcow2BitmapList *bm_list; Qcow2Bitmap *bm; - Qcow2BitmapInfoList *list =3D NULL; - Qcow2BitmapInfoList **plist =3D &list; =20 if (s->nb_bitmaps =3D=3D 0) { - return NULL; + *info_list =3D NULL; + return true; } =20 bm_list =3D bitmap_list_load(bs, s->bitmap_directory_offset, s->bitmap_directory_size, errp); - if (bm_list =3D=3D NULL) { - return NULL; + if (!bm_list) { + return false; } =20 + *info_list =3D NULL; + QSIMPLEQ_FOREACH(bm, bm_list, entry) { Qcow2BitmapInfo *info =3D g_new0(Qcow2BitmapInfo, 1); Qcow2BitmapInfoList *obj =3D g_new0(Qcow2BitmapInfoList, 1); @@ -1124,13 +1124,13 @@ Qcow2BitmapInfoList *qcow2_get_bitmap_info_list(Blo= ckDriverState *bs, info->name =3D g_strdup(bm->name); info->flags =3D get_bitmap_info_flags(bm->flags & ~BME_RESERVED_FL= AGS); obj->value =3D info; - *plist =3D obj; - plist =3D &obj->next; + *info_list =3D obj; + info_list =3D &obj->next; } =20 bitmap_list_free(bm_list); =20 - return list; + return true; } =20 int qcow2_reopen_bitmaps_rw(BlockDriverState *bs, Error **errp) diff --git a/block/qcow2.c b/block/qcow2.c index 41a29072e6..8c89c98978 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -5038,12 +5038,10 @@ static ImageInfoSpecific *qcow2_get_specific_info(B= lockDriverState *bs, BDRVQcow2State *s =3D bs->opaque; ImageInfoSpecific *spec_info; QCryptoBlockInfo *encrypt_info =3D NULL; - Error *local_err =3D NULL; =20 if (s->crypto !=3D NULL) { - encrypt_info =3D qcrypto_block_get_info(s->crypto, &local_err); - if (local_err) { - error_propagate(errp, local_err); + encrypt_info =3D qcrypto_block_get_info(s->crypto, errp); + if (!encrypt_info) { return NULL; } } @@ -5060,9 +5058,7 @@ static ImageInfoSpecific *qcow2_get_specific_info(Blo= ckDriverState *bs, }; } else if (s->qcow_version =3D=3D 3) { Qcow2BitmapInfoList *bitmaps; - bitmaps =3D qcow2_get_bitmap_info_list(bs, &local_err); - if (local_err) { - error_propagate(errp, local_err); + if (!qcow2_get_bitmap_info_list(bs, &bitmaps, errp)) { qapi_free_ImageInfoSpecific(spec_info); qapi_free_QCryptoBlockInfo(encrypt_info); return NULL; --=20 2.21.3