From patchwork Wed Aug 5 10:08:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Denis V. Lunev" X-Patchwork-Id: 1341192 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; dmarc=fail (p=none dis=none) header.from=openvz.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 ozlabs.org (Postfix) with ESMTPS id 4BM6sS6d2bz9sPC for ; Wed, 5 Aug 2020 20:13:48 +1000 (AEST) Received: from localhost ([::1]:51044 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k3GQc-0005wl-NG for incoming@patchwork.ozlabs.org; Wed, 05 Aug 2020 06:13:46 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39742) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3GLZ-0007qK-TG; Wed, 05 Aug 2020 06:08:33 -0400 Received: from relay.sw.ru ([185.231.240.75]:59668 helo=relay3.sw.ru) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3GLV-0001JP-N0; Wed, 05 Aug 2020 06:08:33 -0400 Received: from [192.168.15.207] (helo=iris.lishka.ru) by relay3.sw.ru with esmtp (Exim 4.93) (envelope-from ) id 1k3GLQ-0004tP-0v; Wed, 05 Aug 2020 13:08:24 +0300 From: "Denis V. Lunev" To: qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 1/3] block/block-backend: add converter from BlockAcctStats to BlockBackend Date: Wed, 5 Aug 2020 13:08:22 +0300 Message-Id: <20200805100824.16817-2-den@openvz.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200805100824.16817-1-den@openvz.org> References: <20200805100824.16817-1-den@openvz.org> Received-SPF: pass client-ip=185.231.240.75; envelope-from=den@openvz.org; helo=relay3.sw.ru X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/05 06:08:25 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , "Denis V. Lunev" , Stefan Hajnoczi , Max Reitz Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Right now BlockAcctStats is always reside on BlockBackend. This structure is not used in any other place. Thus we are able to create a converter from one pointer to another. Signed-off-by: Denis V. Lunev Reviewed-by: Vladimir Sementsov-Ogievskiy CC: Stefan Hajnoczi CC: Kevin Wolf CC: Max Reitz --- block/block-backend.c | 5 +++++ include/sysemu/block-backend.h | 1 + 2 files changed, 6 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index 3a13cb5f0b..88e531df98 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2153,6 +2153,11 @@ BlockAcctStats *blk_get_stats(BlockBackend *blk) return &blk->stats; } +BlockBackend *blk_stats2blk(BlockAcctStats *s) +{ + return container_of(s, BlockBackend, stats); +} + void *blk_aio_get(const AIOCBInfo *aiocb_info, BlockBackend *blk, BlockCompletionFunc *cb, void *opaque) { diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 8203d7f6f9..bd4694e7bc 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -227,6 +227,7 @@ void blk_add_insert_bs_notifier(BlockBackend *blk, Notifier *notify); void blk_io_plug(BlockBackend *blk); void blk_io_unplug(BlockBackend *blk); BlockAcctStats *blk_get_stats(BlockBackend *blk); +BlockBackend *blk_stats2blk(BlockAcctStats *stats); BlockBackendRootState *blk_get_root_state(BlockBackend *blk); void blk_update_root_state(BlockBackend *blk); bool blk_get_detect_zeroes_from_root_state(BlockBackend *blk);