From patchwork Tue Jul 10 15:43:02 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 942077 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=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com 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 41Q6TZ1KyPz9s00 for ; Wed, 11 Jul 2018 02:04:34 +1000 (AEST) Received: from localhost ([::1]:48575 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fcv7v-0005pp-RA for incoming@patchwork.ozlabs.org; Tue, 10 Jul 2018 12:04:31 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44596) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fcunn-0005N6-5t for qemu-devel@nongnu.org; Tue, 10 Jul 2018 11:43:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fcunm-0001m5-B1 for qemu-devel@nongnu.org; Tue, 10 Jul 2018 11:43:43 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:34330 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 1fcunk-0001kW-6L; Tue, 10 Jul 2018 11:43:40 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BADB0402315B; Tue, 10 Jul 2018 15:43:39 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-116-156.ams2.redhat.com [10.36.116.156]) by smtp.corp.redhat.com (Postfix) with ESMTP id E90B72026D6B; Tue, 10 Jul 2018 15:43:38 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Tue, 10 Jul 2018 17:43:02 +0200 Message-Id: <20180710154304.18304-23-kwolf@redhat.com> In-Reply-To: <20180710154304.18304-1-kwolf@redhat.com> References: <20180710154304.18304-1-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 10 Jul 2018 15:43:39 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 10 Jul 2018 15:43:39 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'kwolf@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] [PULL 22/24] block: Use common req handling in copy offloading 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: kwolf@redhat.com, peter.maydell@linaro.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Fam Zheng This brings the request handling logic inline with write and discard, fixing write_gen, resize_cb, dirty bitmaps and image size refreshing. The last of these issues broke iotest case 222, which is now fixed. Signed-off-by: Fam Zheng Signed-off-by: Kevin Wolf --- block/io.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-) diff --git a/block/io.c b/block/io.c index 72cfd9bd16..2832214db4 100644 --- a/block/io.c +++ b/block/io.c @@ -3030,20 +3030,16 @@ static int coroutine_fn bdrv_co_copy_range_internal( bdrv_inc_in_flight(dst->bs); tracked_request_begin(&req, dst->bs, dst_offset, bytes, BDRV_TRACKED_WRITE); - - /* BDRV_REQ_NO_SERIALISING is only for read operation */ - assert(!(write_flags & BDRV_REQ_NO_SERIALISING)); - if (write_flags & BDRV_REQ_SERIALISING) { - mark_request_serialising(&req, bdrv_get_cluster_size(dst->bs)); - } - wait_serialising_requests(&req); - - ret = dst->bs->drv->bdrv_co_copy_range_to(dst->bs, - src, src_offset, - dst, dst_offset, - bytes, - read_flags, write_flags); - + ret = bdrv_co_write_req_prepare(dst, dst_offset, bytes, &req, + write_flags); + if (!ret) { + ret = dst->bs->drv->bdrv_co_copy_range_to(dst->bs, + src, src_offset, + dst, dst_offset, + bytes, + read_flags, write_flags); + } + bdrv_co_write_req_finish(dst, dst_offset, bytes, &req, ret); tracked_request_end(&req); bdrv_dec_in_flight(dst->bs); }