From patchwork Mon Apr 29 11:51:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Sementsov-Ogievskiy X-Patchwork-Id: 13646712 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id E6E39C4345F for ; Mon, 29 Apr 2024 11:54:29 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s1PYa-0008Gc-9v; Mon, 29 Apr 2024 07:52:28 -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 1s1PYX-0008ED-K5; Mon, 29 Apr 2024 07:52:25 -0400 Received: from forwardcorp1c.mail.yandex.net ([178.154.239.200]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s1PYQ-0001oT-7B; Mon, 29 Apr 2024 07:52:24 -0400 Received: from mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net (mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net [IPv6:2a02:6b8:c0c:2a2a:0:640:d546:0]) by forwardcorp1c.mail.yandex.net (Yandex) with ESMTPS id 75C4D609CB; Mon, 29 Apr 2024 14:52:14 +0300 (MSK) Received: from vsementsov-lin.. (unknown [2a02:6b8:b081:b739::1:30]) by mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id 0qOEuD11MuQ0-qgnwwq8a; Mon, 29 Apr 2024 14:52:13 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1714391533; bh=I+2soJ4/eyyd9cuN7ELJHb5wdeolkF6wmoySJyBdftI=; h=Message-Id:Date:In-Reply-To:Cc:Subject:References:To:From; b=BNMjTTa4YVDn4sE9IEzqR0gTCpwUjXkh70B3lmKI/Q4eNcqW0iyHwLOzuTIdDJQNg bfYqMQkUgWTIUeAiTqAL1UJ7xrKVDiZkif3PvGH4zIPgcxMmlrzHoF5Zxv/0/AUvTX uNTy7lR1VNpfxFiSwUitc0mXSJZ+Cx/Yg1QaMN+g= Authentication-Results: mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net; dkim=pass header.i=@yandex-team.ru From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, vsementsov@yandex-team.ru, Fiona Ebner , John Snow , Kevin Wolf , Hanna Reitz Subject: [PULL 4/6] block/copy-before-write: create block_copy bitmap in filter node Date: Mon, 29 Apr 2024 14:51:55 +0300 Message-Id: <20240429115157.2260885-5-vsementsov@yandex-team.ru> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240429115157.2260885-1-vsementsov@yandex-team.ru> References: <20240429115157.2260885-1-vsementsov@yandex-team.ru> MIME-Version: 1.0 Received-SPF: pass client-ip=178.154.239.200; envelope-from=vsementsov@yandex-team.ru; helo=forwardcorp1c.mail.yandex.net 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Currently block_copy creates copy_bitmap in source node. But that is in bad relation with .independent_close=true of copy-before-write filter: source node may be detached and removed before .bdrv_close() handler called, which should call block_copy_state_free(), which in turn should remove copy_bitmap. That's all not ideal: it would be better if internal bitmap of block-copy object is not attached to any node. But that is not possible now. The simplest solution is just create copy_bitmap in filter node, where anyway two other bitmaps are created. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Fiona Ebner Tested-by: Fiona Ebner Message-Id: <20240313152822.626493-4-vsementsov@yandex-team.ru> Signed-off-by: Vladimir Sementsov-Ogievskiy --- block/block-copy.c | 3 +- block/copy-before-write.c | 2 +- include/block/block-copy.h | 1 + tests/qemu-iotests/257.out | 112 ++++++++++++++++++------------------- 4 files changed, 60 insertions(+), 58 deletions(-) diff --git a/block/block-copy.c b/block/block-copy.c index 9ee3dd7ef5..8fca2c3698 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -351,6 +351,7 @@ static int64_t block_copy_calculate_cluster_size(BlockDriverState *target, } BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, + BlockDriverState *copy_bitmap_bs, const BdrvDirtyBitmap *bitmap, Error **errp) { @@ -367,7 +368,7 @@ BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, return NULL; } - copy_bitmap = bdrv_create_dirty_bitmap(source->bs, cluster_size, NULL, + copy_bitmap = bdrv_create_dirty_bitmap(copy_bitmap_bs, cluster_size, NULL, errp); if (!copy_bitmap) { return NULL; diff --git a/block/copy-before-write.c b/block/copy-before-write.c index 6d89af0b29..ed2c228da7 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -468,7 +468,7 @@ static int cbw_open(BlockDriverState *bs, QDict *options, int flags, ((BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK) & bs->file->bs->supported_zero_flags); - s->bcs = block_copy_state_new(bs->file, s->target, bitmap, errp); + s->bcs = block_copy_state_new(bs->file, s->target, bs, bitmap, errp); if (!s->bcs) { error_prepend(errp, "Cannot create block-copy-state: "); return -EINVAL; diff --git a/include/block/block-copy.h b/include/block/block-copy.h index 0700953ab8..8b41643bfa 100644 --- a/include/block/block-copy.h +++ b/include/block/block-copy.h @@ -25,6 +25,7 @@ typedef struct BlockCopyState BlockCopyState; typedef struct BlockCopyCallState BlockCopyCallState; BlockCopyState *block_copy_state_new(BdrvChild *source, BdrvChild *target, + BlockDriverState *copy_bitmap_bs, const BdrvDirtyBitmap *bitmap, Error **errp); diff --git a/tests/qemu-iotests/257.out b/tests/qemu-iotests/257.out index aa76131ca9..c33dd7f3a9 100644 --- a/tests/qemu-iotests/257.out +++ b/tests/qemu-iotests/257.out @@ -120,16 +120,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -596,16 +596,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -865,16 +865,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -1341,16 +1341,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -1610,16 +1610,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -2086,16 +2086,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -2355,16 +2355,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -2831,16 +2831,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -3100,16 +3100,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -3576,16 +3576,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -3845,16 +3845,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -4321,16 +4321,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -4590,16 +4590,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752, @@ -5066,16 +5066,16 @@ write -P0x67 0x3fe0000 0x20000 "granularity": 65536, "persistent": false, "recording": false - } - ], - "drive0": [ + }, { "busy": false, "count": 0, "granularity": 65536, "persistent": false, "recording": false - }, + } + ], + "drive0": [ { "busy": false, "count": 458752,