From patchwork Wed Aug 4 09:37:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Sementsov-Ogievskiy X-Patchwork-Id: 1513320 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; dkim=pass (1024-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=Ux9ySmPC; 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 4Gfn0H1sc6z9sT6 for ; Wed, 4 Aug 2021 19:45:01 +1000 (AEST) Received: from localhost ([::1]:53742 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mBDSL-0000It-HR for incoming@patchwork.ozlabs.org; Wed, 04 Aug 2021 05:44:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47206) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mBDMP-0004aS-Ol; Wed, 04 Aug 2021 05:38:51 -0400 Received: from mail-eopbgr70101.outbound.protection.outlook.com ([40.107.7.101]:22757 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 1mBDMM-0005wf-TW; Wed, 04 Aug 2021 05:38:49 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TNgh/NcwXI5oKyxBmHmUG+j+djQBMMCcIbYpZWtYMUq9lOcr4nSQRJmrbol4bcbXLsDIJj5Pm4CN4CbR8sPB2+AGxk+2YtDyrYHzKIOOippJlx7KmSIzsvFTyCqrTJGEAIbMjCL1WFPK4ZwONLJxe16Atol0Jo3aacyPgqbT/TgTqQl5hVq2nK+JiYWAwf99Y3aekwZUcFPAK7OVQ0pffQo53LJPAhLaqynFZor2wVf3P7d/imkHnHcC8loG0PEZJlvPOUIJ6lD+o3ZxzD6Aoz+/V+bxXjfDfawBmkh2WYtwybMfFRo3mrN2GTZtktMEwoCnhqneZVuFhUMAK86pcg== 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=7GmJJP2me1hAQJQvNuKG3Yp1F2STkJylbpXCBY/QG70=; b=mqFWvFNLRZgPsuu3kPUHKV03oE5qgwdSVPFeisxHAWIeNHonb1reDS06WTwvFhCpYzd4zucZ4/bDbkhi4uu7MrchM3ZOrF8PP55i1nz/AqhbkQoaB/SHZW6BCFVJJxFUtJHXh4gWj8hWIAcEyrZE8Hg9Fvj8areoYEAMpyDXm8Uedc/cYlGYK3GGGdQy+YEev/I9xPOVF/EtpeWcVlSX6VVY9jWKEUuPoe3h3cZrrilctoXIZnBW6JG6/sA8GBtqJ2ptKmv2JIC/OQ6o/ZsAjmWhaJbVZ7XK+1P89rp/4OxE79mDL6f3PWQU7tm/qH0Q2q6dumAnmCHL7hjuXPdZng== 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=7GmJJP2me1hAQJQvNuKG3Yp1F2STkJylbpXCBY/QG70=; b=Ux9ySmPC5oOVCOSIepTo9s2ul/s1CABeKw3WdYUsKdu2GOGGyLc9V7d+xra4r0CdoUexyppYQKTWdCA+7k4ANN7Njl86CWjCRl93cr5ijE2wBZkpOqqy+GXHA2svDDQ/OMKk4LKfoZW1rwJyidoxZ+tInNkdjPMEphFmlHacobg= 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 AM6PR08MB3622.eurprd08.prod.outlook.com (2603:10a6:20b:4c::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4373.26; Wed, 4 Aug 2021 09:38:37 +0000 Received: from AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::44b9:68ac:bdc7:e23c]) by AM7PR08MB5494.eurprd08.prod.outlook.com ([fe80::44b9:68ac:bdc7:e23c%8]) with mapi id 15.20.4373.026; Wed, 4 Aug 2021 09:38:37 +0000 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, armbru@redhat.com, eblake@redhat.com, crosa@redhat.com, ehabkost@redhat.com, berrange@redhat.com, pbonzini@redhat.com, vsementsov@virtuozzo.com, jsnow@redhat.com, mreitz@redhat.com, kwolf@redhat.com Subject: [PATCH v7 02/33] block: introduce blk_replace_bs Date: Wed, 4 Aug 2021 12:37:42 +0300 Message-Id: <20210804093813.20688-3-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210804093813.20688-1-vsementsov@virtuozzo.com> References: <20210804093813.20688-1-vsementsov@virtuozzo.com> X-ClientProxiedBy: HE1P191CA0011.EURP191.PROD.OUTLOOK.COM (2603:10a6:3:cf::21) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (185.215.60.211) by HE1P191CA0011.EURP191.PROD.OUTLOOK.COM (2603:10a6:3:cf::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4394.15 via Frontend Transport; Wed, 4 Aug 2021 09:38:36 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 984c9368-56bc-42d9-1dfc-08d9572ba2e0 X-MS-TrafficTypeDiagnostic: AM6PR08MB3622: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:352; 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:AM7PR08MB5494.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(346002)(376002)(396003)(136003)(39840400004)(366004)(4326008)(1076003)(26005)(8936002)(8676002)(2906002)(316002)(66946007)(6666004)(66556008)(66476007)(6916009)(7416002)(2616005)(6506007)(956004)(86362001)(186003)(36756003)(38350700002)(6512007)(52116002)(478600001)(38100700002)(5660300002)(83380400001)(6486002); 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: 984c9368-56bc-42d9-1dfc-08d9572ba2e0 X-MS-Exchange-CrossTenant-AuthSource: AM7PR08MB5494.eurprd08.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Aug 2021 09:38:37.8995 (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: TqrSXkaGqx+1/GVjPvSz6epZtFM26ycVOos3cywL1F4iNsemFUmJGYScW+UIA78OzN32VsPnVOx8lqYNKhYGW2/iXkImC7bJmQjqMg18qmc= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR08MB3622 Received-SPF: pass client-ip=40.107.7.101; envelope-from=vsementsov@virtuozzo.com; helo=EUR04-HE1-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, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Add function to change bs inside blk. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Max Reitz --- include/sysemu/block-backend.h | 1 + block/block-backend.c | 8 ++++++++ 2 files changed, 9 insertions(+) diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 9ac5f7bbd3..29d4fdbf63 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -102,6 +102,7 @@ BlockBackend *blk_by_public(BlockBackendPublic *public); BlockDriverState *blk_bs(BlockBackend *blk); void blk_remove_bs(BlockBackend *blk); int blk_insert_bs(BlockBackend *blk, BlockDriverState *bs, Error **errp); +int blk_replace_bs(BlockBackend *blk, BlockDriverState *new_bs, Error **errp); bool bdrv_has_blk(BlockDriverState *bs); bool bdrv_is_root_node(BlockDriverState *bs); int blk_set_perm(BlockBackend *blk, uint64_t perm, uint64_t shared_perm, diff --git a/block/block-backend.c b/block/block-backend.c index deb55c272e..6140d133e2 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -869,6 +869,14 @@ int blk_insert_bs(BlockBackend *blk, BlockDriverState *bs, Error **errp) return 0; } +/* + * Change BlockDriverState associated with @blk. + */ +int blk_replace_bs(BlockBackend *blk, BlockDriverState *new_bs, Error **errp) +{ + return bdrv_replace_child_bs(blk->root, new_bs, errp); +} + /* * Sets the permission bitmasks that the user of the BlockBackend needs. */