From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80541C7618B for ; Thu, 25 Jul 2019 16:27:37 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 586CE217F4 for ; Thu, 25 Jul 2019 16:27:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 586CE217F4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33808 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hqgad-0003iv-U5 for qemu-devel@archiver.kernel.org; Thu, 25 Jul 2019 12:27:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36717) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hqgaN-00033a-Jx for qemu-devel@nongnu.org; Thu, 25 Jul 2019 12:27:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hqgaM-0003nQ-Gb for qemu-devel@nongnu.org; Thu, 25 Jul 2019 12:27:19 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59182) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hqgaJ-0003hs-Px; Thu, 25 Jul 2019 12:27:15 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BFF2783F3D; Thu, 25 Jul 2019 16:27:14 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-117-146.ams2.redhat.com [10.36.117.146]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3834F5D71A; Thu, 25 Jul 2019 16:27:12 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Thu, 25 Jul 2019 18:27:00 +0200 Message-Id: <20190725162704.12622-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Thu, 25 Jul 2019 16:27:15 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 0/4] block-backend: Queue requests while drained X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, den@virtuozzo.com, qemu-devel@nongnu.org, mreitz@redhat.com, dplotnikov@virtuozzo.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This series fixes the problem that devices like IDE, which submit requests as a direct result of I/O from the CPU thread, can continue to submit new requests even in a drained section. In order to avoid a dependency for this series, I borrowed a patch from Max. Kevin Wolf (3): block: Remove blk_pread_unthrottled() mirror: Keep target drained until graph changes are done block-backend: Queue requests while drained Max Reitz (1): block: Reduce (un)drains when replacing a child include/sysemu/block-backend.h | 13 +++--- block.c | 49 +++++++++++++------- block/backup.c | 1 + block/block-backend.c | 85 +++++++++++++++++++++++----------- block/commit.c | 2 + block/mirror.c | 20 ++++---- blockjob.c | 3 ++ hw/block/hd-geometry.c | 7 +-- tests/test-bdrv-drain.c | 1 + 9 files changed, 118 insertions(+), 63 deletions(-) --=20 2.20.1