From nobody Sun Oct 5 19:25:47 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1524681605159510.5587362629059; Wed, 25 Apr 2018 11:40:05 -0700 (PDT) Received: from localhost ([::1]:38493 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fBPKc-0003HD-Nu for importer@patchew.org; Wed, 25 Apr 2018 14:39:54 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48372) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fBPDb-0005z7-U6 for qemu-devel@nongnu.org; Wed, 25 Apr 2018 14:32:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fBPDb-0004TN-0R for qemu-devel@nongnu.org; Wed, 25 Apr 2018 14:32:39 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:34022 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fBPDY-0004PE-W7; Wed, 25 Apr 2018 14:32:37 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9117E81A88BE; Wed, 25 Apr 2018 18:32:36 +0000 (UTC) Received: from red.redhat.com (ovpn-123-175.rdu2.redhat.com [10.10.123.175]) by smtp.corp.redhat.com (Postfix) with ESMTP id 161C910F1C00; Wed, 25 Apr 2018 18:32:36 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Date: Wed, 25 Apr 2018 13:32:22 -0500 Message-Id: <20180425183223.580566-8-eblake@redhat.com> In-Reply-To: <20180425183223.580566-1-eblake@redhat.com> References: <20180425183223.580566-1-eblake@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Wed, 25 Apr 2018 18:32:36 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Wed, 25 Apr 2018 18:32:36 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'eblake@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH 7/8] vhdx: Switch to byte-based calls 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 , Jeff Cody , "open list:VHDX" , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" We are gradually moving away from sector-based interfaces, towards byte-based. Make the change for the last few sector-based calls into the block layer from the vhdx driver. Ideally, the vhdx driver should switch to doing everything byte-based, but that's a more invasive change that requires a bit more auditing. Signed-off-by: Eric Blake --- block/vhdx.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/block/vhdx.c b/block/vhdx.c index 0b72d895db4..f1dfda6e3e5 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -1126,9 +1126,9 @@ static coroutine_fn int vhdx_co_readv(BlockDriverStat= e *bs, int64_t sector_num, break; case PAYLOAD_BLOCK_FULLY_PRESENT: qemu_co_mutex_unlock(&s->lock); - ret =3D bdrv_co_readv(bs->file, - sinfo.file_offset >> BDRV_SECTOR_BITS, - sinfo.sectors_avail, &hd_qiov); + ret =3D bdrv_co_preadv(bs->file, sinfo.file_offset, + sinfo.sectors_avail * BDRV_SECTOR_SIZ= E, + &hd_qiov, 0); qemu_co_mutex_lock(&s->lock); if (ret < 0) { goto exit; @@ -1348,9 +1348,9 @@ static coroutine_fn int vhdx_co_writev(BlockDriverSta= te *bs, int64_t sector_num, } /* block exists, so we can just overwrite it */ qemu_co_mutex_unlock(&s->lock); - ret =3D bdrv_co_writev(bs->file, - sinfo.file_offset >> BDRV_SECTOR_BITS, - sectors_to_write, &hd_qiov); + ret =3D bdrv_co_pwritev(bs->file, sinfo.file_offset, + sectors_to_write * BDRV_SECTOR_SIZE, + &hd_qiov, 0); qemu_co_mutex_lock(&s->lock); if (ret < 0) { goto error_bat_restore; --=20 2.14.3