From patchwork Fri Jun 19 10:07:06 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: 11613665 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A450D92A for ; Fri, 19 Jun 2020 10:07:58 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 84BA62073E for ; Fri, 19 Jun 2020 10:07:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 84BA62073E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=openvz.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:55434 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jmDwD-0005Jb-N5 for patchwork-qemu-devel@patchwork.kernel.org; Fri, 19 Jun 2020 06:07:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49430) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jmDva-0003gI-D1; Fri, 19 Jun 2020 06:07:18 -0400 Received: from relay.sw.ru ([185.231.240.75]:37622 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 1jmDvY-0003LL-AG; Fri, 19 Jun 2020 06:07:18 -0400 Received: from [192.168.15.83] (helo=iris.lishka.ru) by relay3.sw.ru with esmtp (Exim 4.93) (envelope-from ) id 1jmDvN-0004IR-PX; Fri, 19 Jun 2020 13:07:05 +0300 From: "Denis V. Lunev" To: qemu-block@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH 4/6] block/block-backend: remove always true check from blk_save_vmstate Date: Fri, 19 Jun 2020 13:07:06 +0300 Message-Id: <20200619100708.30440-5-den@openvz.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200619100708.30440-1-den@openvz.org> References: <20200619100708.30440-1-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 = 2020/06/19 06:07:12 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=_AUTOLEARN 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 , Fam Zheng , Vladimir Sementsov-Ogievskiy , Juan Quintela , "Dr. David Alan Gilbert" , Max Reitz , Denis Plotnikov , Stefan Hajnoczi , "Denis V. Lunev" Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" bdrv_save_vmstate() returns either error with negative return value or size. Thus this check is useless. Signed-off-by: Denis V. Lunev Suggested-by: Eric Blake CC: Kevin Wolf CC: Max Reitz CC: Stefan Hajnoczi CC: Fam Zheng CC: Juan Quintela CC: "Dr. David Alan Gilbert" CC: Vladimir Sementsov-Ogievskiy CC: Denis Plotnikov Reviewed-by: Vladimir Sementsov-Ogievskiy --- block/block-backend.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/block-backend.c b/block/block-backend.c index 6936b25c83..1c6e53bbde 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2188,7 +2188,7 @@ int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf, return ret; } - if (ret == size && !blk->enable_write_cache) { + if (!blk->enable_write_cache) { ret = bdrv_flush(blk_bs(blk)); }