From patchwork Sat Dec 31 09:06:28 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Wang X-Patchwork-Id: 133735 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [140.186.70.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 74AA0B6FA5 for ; Sat, 31 Dec 2011 20:07:20 +1100 (EST) Received: from localhost ([::1]:40606 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RguuJ-0006us-Se for incoming@patchwork.ozlabs.org; Sat, 31 Dec 2011 04:07:15 -0500 Received: from eggs.gnu.org ([140.186.70.92]:33317) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rguu3-0006H4-Lg for qemu-devel@nongnu.org; Sat, 31 Dec 2011 04:07:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Rguu2-0005Je-Jg for qemu-devel@nongnu.org; Sat, 31 Dec 2011 04:06:59 -0500 Received: from e28smtp09.in.ibm.com ([122.248.162.9]:36505) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rguu1-0005JN-Ui for qemu-devel@nongnu.org; Sat, 31 Dec 2011 04:06:58 -0500 Received: from /spool/local by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sat, 31 Dec 2011 14:36:52 +0530 Received: from d28relay03.in.ibm.com (9.184.220.60) by e28smtp09.in.ibm.com (192.168.1.139) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Sat, 31 Dec 2011 14:36:49 +0530 Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay03.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id pBV96mOo4603972 for ; Sat, 31 Dec 2011 14:36:49 +0530 Received: from d28av01.in.ibm.com (loopback [127.0.0.1]) by d28av01.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id pBV96m1t020587 for ; Sat, 31 Dec 2011 14:36:48 +0530 Received: from wdongxu-T410.cn.ibm.com (wdongxu-t410.cn.ibm.com [9.115.118.147] (may be forged)) by d28av01.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id pBV96gc4020443; Sat, 31 Dec 2011 14:36:47 +0530 From: Dong Xu Wang To: qemu-devel@nongnu.org Date: Sat, 31 Dec 2011 17:06:28 +0800 Message-Id: <1325322388-4825-2-git-send-email-wdongxu@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1325322388-4825-1-git-send-email-wdongxu@linux.vnet.ibm.com> References: <1325322388-4825-1-git-send-email-wdongxu@linux.vnet.ibm.com> x-cbid: 11123109-2674-0000-0000-000002D08C01 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 122.248.162.9 Cc: Kevin Wolf , Dong Xu Wang , Stefan Hajnoczi Subject: [Qemu-devel] [PATCH 2/2] block: track dirty flag status in qed 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 From: Dong Xu Wang qed driver use QED_F_NEED_CHECK to mark if the image is clean. CC: Kevin Wolf CC: Stefan Hajnoczi Signed-off-by: Dong Xu Wang --- block/qed.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/block/qed.c b/block/qed.c index 8da3ebe..1e909b1 100644 --- a/block/qed.c +++ b/block/qed.c @@ -1429,6 +1429,12 @@ static int bdrv_qed_check(BlockDriverState *bs, BdrvCheckResult *result) return qed_check(s, result, false); } +static int bdrv_qed_is_dirty(BlockDriverState *bs) +{ + BDRVQEDState *s = bs->opaque; + return s->header.features & QED_F_NEED_CHECK; +} + static QEMUOptionParameter qed_create_options[] = { { .name = BLOCK_OPT_SIZE, @@ -1474,6 +1480,7 @@ static BlockDriver bdrv_qed = { .bdrv_get_info = bdrv_qed_get_info, .bdrv_change_backing_file = bdrv_qed_change_backing_file, .bdrv_check = bdrv_qed_check, + .bdrv_is_dirty = bdrv_qed_is_dirty, }; static void bdrv_qed_init(void)