From patchwork Tue Nov 12 07:47:21 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hu Tao X-Patchwork-Id: 290547 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 47D612C007A for ; Tue, 12 Nov 2013 18:51:14 +1100 (EST) Received: from localhost ([::1]:41437 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vg8kg-0001UO-It for incoming@patchwork.ozlabs.org; Tue, 12 Nov 2013 02:51:10 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50727) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vg8kD-0001PX-0q for qemu-devel@nongnu.org; Tue, 12 Nov 2013 02:50:45 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Vg8k7-0006Dy-6k for qemu-devel@nongnu.org; Tue, 12 Nov 2013 02:50:40 -0500 Received: from [222.73.24.84] (port=62929 helo=song.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vg8k6-0006CC-Mv for qemu-devel@nongnu.org; Tue, 12 Nov 2013 02:50:35 -0500 X-IronPort-AV: E=Sophos;i="4.93,683,1378828800"; d="scan'208";a="9010902" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 12 Nov 2013 15:45:57 +0800 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id rAC7nKoq026879; Tue, 12 Nov 2013 15:49:20 +0800 Received: from G08FNSTD100614.fnst.cn.fujitsu.com ([10.167.226.102]) by fnstmail02.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2013111215473790-53909 ; Tue, 12 Nov 2013 15:47:37 +0800 From: Hu Tao To: Kevin Wolf , "Daniel P. Berrange" Date: Tue, 12 Nov 2013 15:47:21 +0800 Message-Id: <04300ac9c374bb7e001456dc4e56201d6050072f.1384227383.git.hutao@cn.fujitsu.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: References: X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/11/12 15:47:37, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/11/12 15:47:38, Serialize complete at 2013/11/12 15:47:38 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 222.73.24.84 Cc: qemu-devel@nongnu.org Subject: [Qemu-devel] [RFC PATCH 3/4] qcow2: implement bdrv_zero_init X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 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 Signed-off-by: Hu Tao --- block/qcow2.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/block/qcow2.c b/block/qcow2.c index 6e5d98d..359030f 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -2180,6 +2180,12 @@ static int qcow2_amend_options(BlockDriverState *bs, return 0; } +static int qcow2_zero_init(BlockDriverState *bs, int64_t offset, + int64_t length) +{ + return bdrv_zero_init(bs->file, offset, length); +} + static QEMUOptionParameter qcow2_create_options[] = { { .name = BLOCK_OPT_SIZE, @@ -2234,6 +2240,7 @@ static BlockDriver bdrv_qcow2 = { .bdrv_reopen_prepare = qcow2_reopen_prepare, .bdrv_create = qcow2_create, .bdrv_has_zero_init = bdrv_has_zero_init_1, + .bdrv_zero_init = qcow2_zero_init, .bdrv_co_get_block_status = qcow2_co_get_block_status, .bdrv_set_key = qcow2_set_key, .bdrv_make_empty = qcow2_make_empty,