From patchwork Sun Feb 19 15:16:26 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhiyong Wu X-Patchwork-Id: 142060 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 5B046B6EF3 for ; Mon, 20 Feb 2012 02:16:53 +1100 (EST) Received: from localhost ([::1]:53777 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rz8VJ-0004dJ-TA for incoming@patchwork.ozlabs.org; Sun, 19 Feb 2012 10:16:45 -0500 Received: from eggs.gnu.org ([140.186.70.92]:33758) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rz8VE-0004dE-LS for qemu-devel@nongnu.org; Sun, 19 Feb 2012 10:16:41 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Rz8VD-0000to-9d for qemu-devel@nongnu.org; Sun, 19 Feb 2012 10:16:40 -0500 Received: from e9.ny.us.ibm.com ([32.97.182.139]:53897) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Rz8VD-0000tk-6w for qemu-devel@nongnu.org; Sun, 19 Feb 2012 10:16:39 -0500 Received: from /spool/local by e9.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sun, 19 Feb 2012 10:16:37 -0500 Received: from d01dlp01.pok.ibm.com (9.56.224.56) by e9.ny.us.ibm.com (192.168.1.109) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Sun, 19 Feb 2012 10:16:36 -0500 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by d01dlp01.pok.ibm.com (Postfix) with ESMTP id B6ED638C8059 for ; Sun, 19 Feb 2012 10:16:35 -0500 (EST) Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q1JFGZTo330130 for ; Sun, 19 Feb 2012 10:16:35 -0500 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q1JFGYNo026065 for ; Sun, 19 Feb 2012 10:16:34 -0500 Received: from us.ibm.com (f15.cn.ibm.com [9.115.118.120] (may be forged)) by d01av04.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with SMTP id q1JFGV4k025779; Sun, 19 Feb 2012 10:16:32 -0500 Received: by us.ibm.com (sSMTP sendmail emulation); Sun, 19 Feb 2012 23:16:27 +0800 From: zwu.kernel@gmail.com To: qemu-devel@nongnu.org Date: Sun, 19 Feb 2012 23:16:26 +0800 Message-Id: <1329664586-13923-1-git-send-email-zwu.kernel@gmail.com> X-Mailer: git-send-email 1.7.6 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12021915-7182-0000-0000-000000D5354A X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 32.97.182.139 Cc: chris@arachsys.com, Zhi Yong Wu , stefanha@linux.vnet.ibm.com Subject: [Qemu-devel] [PATCH] block: fix block I/O throtting with IDE 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 From: Zhi Yong Wu The patch is based on the latest QEMU upstream. If you will backport the patchset to QEMU 1.0, pls note the difference. Signed-off-by: Zhi Yong Wu --- block.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index ae297bb..07cd143 100644 --- a/block.c +++ b/block.c @@ -863,6 +863,12 @@ void bdrv_drain_all(void) { BlockDriverState *bs; + QTAILQ_FOREACH(bs, &bdrv_states, list) { + if (!qemu_co_queue_empty(&bs->throttled_reqs)) { + qemu_co_queue_restart_all(&bs->throttled_reqs); + } + } + qemu_aio_flush(); /* If requests are still pending there is a bug somewhere */