From patchwork Wed Jan 19 05:44:59 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshiaki Tamura X-Patchwork-Id: 79408 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id EEEAEB70CC for ; Wed, 19 Jan 2011 16:55:30 +1100 (EST) Received: from localhost ([127.0.0.1]:40246 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PfR0y-0004tw-0l for incoming@patchwork.ozlabs.org; Wed, 19 Jan 2011 00:55:28 -0500 Received: from [140.186.70.92] (port=57967 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PfQrz-0001xi-Kv for qemu-devel@nongnu.org; Wed, 19 Jan 2011 00:46:16 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PfQrv-0003iR-No for qemu-devel@nongnu.org; Wed, 19 Jan 2011 00:46:11 -0500 Received: from sh.osrg.net ([192.16.179.4]:40982) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PfQrv-0003gp-4H for qemu-devel@nongnu.org; Wed, 19 Jan 2011 00:46:07 -0500 Received: from fs.osrg.net (postfix@fs.osrg.net [10.0.0.12]) by sh.osrg.net (8.14.3/8.14.3/OSRG-NET) with ESMTP id p0J5jmFJ019406; Wed, 19 Jan 2011 14:45:48 +0900 Received: from localhost (hype-nh0.osrg.net [10.72.1.48]) by fs.osrg.net (Postfix) with ESMTP id 4194F3E042F; Wed, 19 Jan 2011 14:45:45 +0900 (JST) From: Yoshiaki Tamura To: kvm@vger.kernel.org, qemu-devel@nongnu.org Date: Wed, 19 Jan 2011 14:44:59 +0900 Message-Id: <1295415904-11918-15-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> X-Mailer: git-send-email 1.7.1.2 In-Reply-To: <1295415904-11918-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> References: <1295415904-11918-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> X-Dispatcher: imput version 20070423(IM149) Lines: 47 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (sh.osrg.net [192.16.179.4]); Wed, 19 Jan 2011 14:45:50 +0900 (JST) X-Virus-Scanned: clamav-milter 0.96.5 at sh X-Virus-Status: Clean X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) Cc: kwolf@redhat.com, aliguori@us.ibm.com, mtosatti@redhat.com, ananth@in.ibm.com, mst@redhat.com, dlaor@redhat.com, vatsa@linux.vnet.ibm.com, Yoshiaki Tamura , blauwirbel@gmail.com, ohmura.kei@lab.ntt.co.jp, avi@redhat.com, psuriset@linux.vnet.ibm.com, stefanha@linux.vnet.ibm.com Subject: [Qemu-devel] [PATCH 14/19] block: insert event-tap to bdrv_aio_writev() and bdrv_aio_flush(). X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org event-tap function is called only when it is on, and requests sent from device emulators. Signed-off-by: Yoshiaki Tamura --- block.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index ff2795b..85bd8b8 100644 --- a/block.c +++ b/block.c @@ -28,6 +28,7 @@ #include "block_int.h" #include "module.h" #include "qemu-objects.h" +#include "event-tap.h" #ifdef CONFIG_BSD #include @@ -2111,6 +2112,11 @@ BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num, if (bdrv_check_request(bs, sector_num, nb_sectors)) return NULL; + if (bs->device_name && event_tap_is_on()) { + return event_tap_bdrv_aio_writev(bs, sector_num, qiov, nb_sectors, + cb, opaque); + } + if (bs->dirty_bitmap) { blk_cb_data = blk_dirty_cb_alloc(bs, sector_num, nb_sectors, cb, opaque); @@ -2374,6 +2380,11 @@ BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs, if (!drv) return NULL; + + if (bs->device_name && event_tap_is_on()) { + return event_tap_bdrv_aio_flush(bs, cb, opaque); + } + return drv->bdrv_aio_flush(bs, cb, opaque); }