From patchwork Wed Mar 23 04:10:22 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshiaki Tamura X-Patchwork-Id: 654441 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p2N4ITqq013032 for ; Wed, 23 Mar 2011 04:18:55 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752616Ab1CWESn (ORCPT ); Wed, 23 Mar 2011 00:18:43 -0400 Received: from sh.osrg.net ([192.16.179.4]:34138 "EHLO sh.osrg.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752351Ab1CWESS (ORCPT ); Wed, 23 Mar 2011 00:18:18 -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 p2N4HmlR010579; Wed, 23 Mar 2011 13:17:48 +0900 Received: from localhost (hype-nh0.osrg.net [10.72.1.48]) by fs.osrg.net (Postfix) with ESMTP id 2BC6E3E02DC; Wed, 23 Mar 2011 13:17:45 +0900 (JST) From: Yoshiaki Tamura To: kvm@vger.kernel.org, qemu-devel@nongnu.org Cc: avi@redhat.com, anthony@codemonkey.ws, aliguori@us.ibm.com, mtosatti@redhat.com, dlaor@redhat.com, mst@redhat.com, kwolf@redhat.com, pbonzini@redhat.com, quintela@redhat.com, ananth@in.ibm.com, psuriset@linux.vnet.ibm.com, vatsa@linux.vnet.ibm.com, stefanha@linux.vnet.ibm.com, blauwirbel@gmail.com, ohmura.kei@lab.ntt.co.jp, Yoshiaki Tamura Subject: [PATCH 14/18] block: insert event-tap to bdrv_aio_writev(), bdrv_aio_flush() and bdrv_flush(). Date: Wed, 23 Mar 2011 13:10:22 +0900 Message-Id: <1300853426-7054-15-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> X-Mailer: git-send-email 1.7.1.2 In-Reply-To: <1300853426-7054-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> References: <1300853426-7054-1-git-send-email-tamura.yoshiaki@lab.ntt.co.jp> X-Dispatcher: imput version 20070423(IM149) Lines: 59 X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Wed, 23 Mar 2011 04:18:55 +0000 (UTC) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (sh.osrg.net [192.16.179.4]); Wed, 23 Mar 2011 13:17:49 +0900 (JST) X-Virus-Scanned: clamav-milter 0.97 at sh X-Virus-Status: Clean Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org diff --git a/block.c b/block.c index c8e2f97..952543a 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 @@ -1585,6 +1586,10 @@ 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); } @@ -2220,6 +2225,11 @@ 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); @@ -2493,6 +2503,11 @@ 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); }