From patchwork Tue Aug 29 00:14:07 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Michael Roth X-Patchwork-Id: 806850 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xh8zZ4RfTz9sNr for ; Tue, 29 Aug 2017 10:44:42 +1000 (AEST) Received: from localhost ([::1]:42040 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmUe0-0001Nc-Cv for incoming@patchwork.ozlabs.org; Mon, 28 Aug 2017 20:44:40 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47859) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmUCN-00019q-Kg for qemu-devel@nongnu.org; Mon, 28 Aug 2017 20:16:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dmUCK-0005Nr-Ff for qemu-devel@nongnu.org; Mon, 28 Aug 2017 20:16:07 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:41680 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dmUCK-0005Mx-AK for qemu-devel@nongnu.org; Mon, 28 Aug 2017 20:16:04 -0400 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v7T0EBJ4019642 for ; Mon, 28 Aug 2017 20:16:03 -0400 Received: from e18.ny.us.ibm.com (e18.ny.us.ibm.com [129.33.205.208]) by mx0b-001b2d01.pphosted.com with ESMTP id 2cmsfn2w69-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 28 Aug 2017 20:16:03 -0400 Received: from localhost by e18.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 28 Aug 2017 20:16:00 -0400 Received: from b01ledav005.gho.pok.ibm.com (b01ledav005.gho.pok.ibm.com [9.57.199.110]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v7T0FxZE23920652; Tue, 29 Aug 2017 00:15:59 GMT Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7EE8DAE03C; Mon, 28 Aug 2017 20:16:23 -0400 (EDT) Received: from localhost (unknown [9.80.85.217]) by b01ledav005.gho.pok.ibm.com (Postfix) with ESMTP id 4718BAE034; Mon, 28 Aug 2017 20:16:23 -0400 (EDT) From: Michael Roth To: qemu-devel@nongnu.org Date: Mon, 28 Aug 2017 19:14:07 -0500 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1503965694-10794-1-git-send-email-mdroth@linux.vnet.ibm.com> References: <1503965694-10794-1-git-send-email-mdroth@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 17082900-0044-0000-0000-000003847056 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007630; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000226; SDB=6.00909028; UDB=6.00455849; IPR=6.00689279; BA=6.00005557; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00016909; XFM=3.00000015; UTC=2017-08-29 00:16:01 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17082900-0045-0000-0000-000007B288C9 Message-Id: <1503965694-10794-33-git-send-email-mdroth@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-08-28_13:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1708290001 X-MIME-Autoconverted: from 8bit to quoted-printable by mx0b-001b2d01.pphosted.com id v7T0EBJ4019642 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH 32/79] vvfat: fix qemu-img map and qemu-img convert X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , =?utf-8?q?Herv=C3=A9_Poussineau?= , qemu-stable@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Hervé Poussineau - bs->total_sectors is the number of sectors of the whole disk - s->sector_count is the number of sectors of the FAT partition This fixes the following assert in qemu-img map: qemu-img.c:2641: get_block_status: Assertion `nb_sectors' failed. This also fixes an infinite loop in qemu-img convert. Fixes: 4480e0f924a42e1db8b8cfcac4d0634dd1bb27a0 Fixes: https://bugs.launchpad.net/qemu/+bug/1599539 Cc: qemu-stable@nongnu.org Signed-off-by: Hervé Poussineau Reviewed-by: Eric Blake Signed-off-by: Kevin Wolf (cherry picked from commit 139921aaa77c435104308ad53b631a00c3b65ae8) Signed-off-by: Michael Roth --- block/vvfat.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/block/vvfat.c b/block/vvfat.c index 8b4e4eb..7d08f65 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -2958,8 +2958,7 @@ vvfat_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, static int64_t coroutine_fn vvfat_co_get_block_status(BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *n, BlockDriverState **file) { - BDRVVVFATState* s = bs->opaque; - *n = s->sector_count - sector_num; + *n = bs->total_sectors - sector_num; if (*n > nb_sectors) { *n = nb_sectors; } else if (*n < 0) {