From patchwork Thu Oct 19 12:58:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1851649 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=En9YMHYE; dkim-atps=neutral Authentication-Results: legolas.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=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SB7FV6P7hz20cx for ; Fri, 20 Oct 2023 00:03:42 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qtScP-0005iC-FC; Thu, 19 Oct 2023 08:59:17 -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 1qtScN-0005hd-Iv; Thu, 19 Oct 2023 08:59:15 -0400 Received: from mail-db8eur05on20725.outbound.protection.outlook.com ([2a01:111:f400:7e1a::725] helo=EUR05-DB8-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 1qtScL-0002g2-OT; Thu, 19 Oct 2023 08:59:15 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=GhTMvcbxHAsjDdNXLDeam9p5Qy8vd1rFd8ua2ZtAxgPL0TAcFh2DNzHpXbhSkCVrA4kjcoMZOwXi3SKypc0VchrfpVaAACgrok05Ijxtf/xJ1ZjL3rZA5NJTACMD2uBume9KGkRXVNDzKfYEeV7NhON84wZoqF2iwIfu/fDGTwV4jvMnPUgFjutRX9HGJYhEEHuyHAylJggRpG5ckgDLeuk7p3j36iuuv+mR9eyaqdC6GOJRXPzKpoLsPxP4ojY/iK4I4jIjlrQBBs1A4ClZOO/E6WBuQCzMiophBVNP1wtiBkQKKjv2g1mCijryTJJePZKIv8CkJZRzRdv+xogbbQ== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=2wmguTHr8AiAOvO1Cv4xcdIkU50krH8TmKkx+Ks4lSo=; b=kE1G3zZZAWnaffA1wJgFGmR11v1Y5+o+qErrAOrB/WDuE9KANbXOPlHBDtxrhpYkxMa2boTgTwlKBvql0dUnwgKhPviuLmRFHEaXR/+9RDpHzWy44r4xeiamaXT59gh95lYdSPsdZyLkjDz88Ta2Tzn8/DhaNu627InwmAXrU187mk33k24dvaJZfBXaBqMvGN1BRyB/5wrm3OJBiOaNXFReufsMDvmbcytuG4GqPBJAkt4IAlVQcnPp2S4zAbE3KLdPXlrA+k6h8E6RvYzpBjYP9O+toMaROfwEbebKW9IzhxuJ69G7L89Fo5AYjFUgO6wJ57iseH/aSzpIl28q+Q== 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=2wmguTHr8AiAOvO1Cv4xcdIkU50krH8TmKkx+Ks4lSo=; b=En9YMHYEywQ3/KF4JLFaO0si0Y1qrwPVyIvCouapczvhxcEnoE57xs+IB/KhzEYQjYCXUXT1gfjLhCJ3Y78kwmTAC2zdz3mBLIVqTGhs4+BNGDW9dNiYscQXAf5tUfUBhZNAWp3Kv3AIN5lEiIO9O4APwtcXMAzfcPpv4XsBr77gMvnODzuzoYrpEtgJ+TV3Q0zljwdk0Mr03+l1yQ2jbjK5MuKq8mi6Tu94Vyns+A3nvG61wL6CP1EeinyM9eXCNy/YhKVswmXcKIm/Yu0B7ks7Rimpv8/1CWNTshMl1xMli422eBwDNdpiUNEp6c5DrXZfifWWp4b9GDau33tEuA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=virtuozzo.com; Received: from HE1PR0801MB1931.eurprd08.prod.outlook.com (2603:10a6:3:4b::17) by DBBPR08MB10554.eurprd08.prod.outlook.com (2603:10a6:10:52d::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6907.23; Thu, 19 Oct 2023 12:59:05 +0000 Received: from HE1PR0801MB1931.eurprd08.prod.outlook.com ([fe80::cefd:987d:e77f:71e0]) by HE1PR0801MB1931.eurprd08.prod.outlook.com ([fe80::cefd:987d:e77f:71e0%11]) with mapi id 15.20.6907.022; Thu, 19 Oct 2023 12:59:05 +0000 From: Alexander Ivanov To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, den@virtuozzo.com, stefanha@redhat.com, vsementsov@yandex-team.ru, kwolf@redhat.com, hreitz@redhat.com Subject: [PATCH v2 03/20] parallels: Add mark_unused() helper Date: Thu, 19 Oct 2023 14:58:37 +0200 Message-Id: <20231019125854.390385-4-alexander.ivanov@virtuozzo.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231019125854.390385-1-alexander.ivanov@virtuozzo.com> References: <20231019125854.390385-1-alexander.ivanov@virtuozzo.com> X-ClientProxiedBy: VI1P189CA0026.EURP189.PROD.OUTLOOK.COM (2603:10a6:802:2a::39) To HE1PR0801MB1931.eurprd08.prod.outlook.com (2603:10a6:3:4b::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: HE1PR0801MB1931:EE_|DBBPR08MB10554:EE_ X-MS-Office365-Filtering-Correlation-Id: 32f1e8ff-5254-424c-14c9-08dbd0a32cfe X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:HE1PR0801MB1931.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230031)(366004)(136003)(396003)(376002)(346002)(39850400004)(230922051799003)(186009)(64100799003)(1800799009)(451199024)(26005)(38350700005)(38100700002)(5660300002)(83380400001)(44832011)(41300700001)(86362001)(8676002)(4326008)(66946007)(8936002)(316002)(1076003)(6916009)(66476007)(66556008)(6486002)(6666004)(6506007)(478600001)(52116002)(2906002)(2616005)(6512007)(36756003); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 32f1e8ff-5254-424c-14c9-08dbd0a32cfe X-MS-Exchange-CrossTenant-AuthSource: HE1PR0801MB1931.eurprd08.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Oct 2023 12:59:05.8213 (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: MhlOlilHHSkWYdaMzprBLWR32yex8qXETeVEt/yjFLUGZrHIISwamPlvj57bX1SdL6lCO4Fe04cWPLxI6p5fyadcvcr6JRa4a8/sS1rYZz0= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBBPR08MB10554 Received-SPF: pass client-ip=2a01:111:f400:7e1a::725; envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR05-DB8-obe.outbound.protection.outlook.com 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, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add a helper to set unused areas in used bitmap. Signed-off-by: Alexander Ivanov --- block/parallels.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/block/parallels.c b/block/parallels.c index 7eb92f87ab..6a4e3945c6 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -195,6 +195,23 @@ static int mark_used(BlockDriverState *bs, unsigned long *bitmap, return 0; } +static int mark_unused(BlockDriverState *bs, unsigned long *bitmap, + uint32_t bitmap_size, int64_t off, uint32_t count) +{ + BDRVParallelsState *s = bs->opaque; + uint32_t cluster_index = host_cluster_index(s, off); + unsigned long next_unused; + if (cluster_index + count > bitmap_size) { + return -E2BIG; + } + next_unused = find_next_zero_bit(bitmap, bitmap_size, cluster_index); + if (next_unused < cluster_index + count) { + return -EINVAL; + } + bitmap_clear(bitmap, cluster_index, count); + return 0; +} + /* * Collect used bitmap. The image can contain errors, we should fill the * bitmap anyway, as much as we can. This information will be used for