From patchwork Mon Apr 25 11:00:53 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: OHMURA Kei X-Patchwork-Id: 92738 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 37CB8B6F00 for ; Mon, 25 Apr 2011 21:09:38 +1000 (EST) Received: from localhost ([::1]:52567 helo=lists2.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QEJfb-0000mY-9e for incoming@patchwork.ozlabs.org; Mon, 25 Apr 2011 07:09:35 -0400 Received: from eggs.gnu.org ([140.186.70.92]:43575) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QEJaY-0000EE-W4 for qemu-devel@nongnu.org; Mon, 25 Apr 2011 07:04:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QEJaY-0004rF-0D for qemu-devel@nongnu.org; Mon, 25 Apr 2011 07:04:22 -0400 Received: from sh.osrg.net ([192.16.179.4]:50485) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QEJaX-0004pE-BS for qemu-devel@nongnu.org; Mon, 25 Apr 2011 07:04:21 -0400 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 p3PB43d0017089; Mon, 25 Apr 2011 20:04:04 +0900 Received: from localhost (klift-nh0.osrg.net [10.84.0.5]) by fs.osrg.net (Postfix) with ESMTP id 32EF63E030D; Mon, 25 Apr 2011 20:04:01 +0900 (JST) From: OHMURA Kei To: qemu-devel@nongnu.org, kvm@vger.kernel.org Date: Mon, 25 Apr 2011 20:00:53 +0900 Message-Id: <1303729257-9034-15-git-send-email-ohmura.kei@lab.ntt.co.jp> X-Mailer: git-send-email 1.7.0.2 In-Reply-To: <1303729257-9034-1-git-send-email-ohmura.kei@lab.ntt.co.jp> References: <1303729257-9034-1-git-send-email-ohmura.kei@lab.ntt.co.jp> X-Dispatcher: imput version 20070423(IM149) Lines: 62 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (sh.osrg.net [192.16.179.4]); Mon, 25 Apr 2011 20:04:05 +0900 (JST) X-Virus-Scanned: clamav-milter 0.97 at sh X-Virus-Status: Clean X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 192.16.179.4 Cc: kwolf@redhat.com, aliguori@us.ibm.com, mtosatti@redhat.com, ohmura.kei@lab.ntt.co.jp, ananth@in.ibm.com, mst@redhat.com, dlaor@redhat.com, vatsa@linux.vnet.ibm.com, Yoshiaki Tamura , blauwirbel@gmail.com, quintela@redhat.com, tamura.yoshiaki@gmail.com, avi@redhat.com, pbonzini@redhat.com, psuriset@linux.vnet.ibm.com, stefanha@linux.vnet.ibm.com Subject: [Qemu-devel] [PATCH 14/18] block: insert event-tap to bdrv_aio_writev(), bdrv_aio_flush() and bdrv_flush(). 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: Yoshiaki Tamura event-tap function is called only when it is on, and requests were sent from device emulators. Signed-off-by: Yoshiaki Tamura Acked-by: Kevin Wolf Signed-off-by: OHMURA Kei --- block.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/block.c b/block.c index f731c7a..9e6b610 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 @@ -1591,6 +1592,10 @@ int bdrv_flush(BlockDriverState *bs) } if (bs->drv && bs->drv->bdrv_flush) { + if (*bs->device_name && event_tap_is_on()) { + event_tap_bdrv_flush(); + } + return bs->drv->bdrv_flush(bs); } @@ -2226,6 +2231,11 @@ 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); @@ -2499,6 +2509,11 @@ 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); }