From patchwork Wed Jul 20 07:57:04 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frediano Ziglio X-Patchwork-Id: 105592 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 2FFA9B6F71 for ; Wed, 20 Jul 2011 18:01:05 +1000 (EST) Received: from localhost ([::1]:34557 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QjRiH-0005PO-AR for incoming@patchwork.ozlabs.org; Wed, 20 Jul 2011 04:01:01 -0400 Received: from eggs.gnu.org ([140.186.70.92]:40046) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QjRev-0005OJ-OK for qemu-devel@nongnu.org; Wed, 20 Jul 2011 03:57:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QjRet-0004e8-Nl for qemu-devel@nongnu.org; Wed, 20 Jul 2011 03:57:33 -0400 Received: from mail-ey0-f171.google.com ([209.85.215.171]:57811) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QjRet-0004VN-6H for qemu-devel@nongnu.org; Wed, 20 Jul 2011 03:57:31 -0400 Received: by mail-ey0-f171.google.com with SMTP id 22so675584eye.30 for ; Wed, 20 Jul 2011 00:57:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=ajFshZ1skMZuoXmU46jcfjGOVqPurRq8fe+Ec9C2Xww=; b=s9ZvLM2a7LAEElySYNUYCjoy3rKafLCb1VslElMkJcopUE0JXak2zWR0RxFZZpQPDE PQABgIG0Z4Wvx0makZ1jvHnIQ1nk2hP5XYtQz7UCKYybnr7tlWJvPfir6MZefZAk4BX6 0YqLTERVdu/JkkKwicnkLfinWxykjOl/Nz2C0= Received: by 10.213.7.13 with SMTP id b13mr3411172ebb.19.1311148650519; Wed, 20 Jul 2011 00:57:30 -0700 (PDT) Received: from localhost.localdomain (tor-exit-router35-readme.formlessnetworking.net [199.48.147.35]) by mx.google.com with ESMTPS id x3sm357834eem.66.2011.07.20.00.57.26 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 20 Jul 2011 00:57:29 -0700 (PDT) From: Frediano Ziglio To: qemu-devel@nongnu.org Date: Wed, 20 Jul 2011 09:57:04 +0200 Message-Id: <1311148624-5640-6-git-send-email-freddy77@gmail.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1311148624-5640-1-git-send-email-freddy77@gmail.com> References: <1311148624-5640-1-git-send-email-freddy77@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 209.85.215.171 Cc: Kevin Wolf , Frediano Ziglio Subject: [Qemu-devel] [RFC PATCH 5/5] qemu_aio_get used to clear all allocated buffer 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: Frediano Ziglio --- block/qcow.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/block/qcow.c b/block/qcow.c index 007fb57..8fd1ee5 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -499,7 +499,6 @@ static QCowAIOCB *qcow_aio_setup(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, int is_write, QCowAIOCB *acb) { - memset(acb, 0, sizeof(*acb)); acb->bs = bs; acb->sector_num = sector_num; acb->qiov = qiov; @@ -509,6 +508,7 @@ static QCowAIOCB *qcow_aio_setup(BlockDriverState *bs, if (is_write) qemu_iovec_to_buffer(qiov, acb->buf); } else { + acb->orig_buf = NULL; acb->buf = (uint8_t *)qiov->iov->iov_base; } acb->nb_sectors = nb_sectors;