From patchwork Wed Jul 27 18:25:25 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frediano Ziglio X-Patchwork-Id: 107137 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 46565B6F68 for ; Thu, 28 Jul 2011 04:25:32 +1000 (EST) Received: from localhost ([::1]:54668 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qm8nQ-00033J-K8 for incoming@patchwork.ozlabs.org; Wed, 27 Jul 2011 14:25:28 -0400 Received: from eggs.gnu.org ([140.186.70.92]:44795) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qm8nF-0002ri-P6 for qemu-devel@nongnu.org; Wed, 27 Jul 2011 14:25:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qm8nD-0006iO-D2 for qemu-devel@nongnu.org; Wed, 27 Jul 2011 14:25:17 -0400 Received: from mail-ww0-f53.google.com ([74.125.82.53]:62853) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qm8nD-0006i7-8l for qemu-devel@nongnu.org; Wed, 27 Jul 2011 14:25:15 -0400 Received: by wwf26 with SMTP id 26so1532310wwf.10 for ; Wed, 27 Jul 2011 11:25:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=fTk6a99vQVRtYgsh69tXMVmoekCKosylR8SE+ag48Pg=; b=juBGT5t5mRfUU5xCkQ9hXYRFrCrvtIEvN1JkekWPSvd/2uuqZW7DUMEHj2GVHkA+rQ GtGHaehxBdgnUJiKNi3vRatXLoyrmi2DqpzUPfbYfk2s102y8BYgrtn0jskzqracPZ6n 0UIsuQNsOE0oIe7LcfNxTH28TNyYy/Ft31YXk= Received: by 10.216.173.81 with SMTP id u59mr138959wel.4.1311791114389; Wed, 27 Jul 2011 11:25:14 -0700 (PDT) Received: from obol602.localdomain (net-2-37-106-50.cust.dsl.vodafone.it [2.37.106.50]) by mx.google.com with ESMTPS id w45sm110498wec.0.2011.07.27.11.25.11 (version=SSLv3 cipher=OTHER); Wed, 27 Jul 2011 11:25:13 -0700 (PDT) From: Frediano Ziglio To: Kevin Wolf Date: Wed, 27 Jul 2011 20:25:25 +0200 Message-Id: <1311791126-11383-2-git-send-email-freddy77@gmail.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1311791126-11383-1-git-send-email-freddy77@gmail.com> References: <1311791126-11383-1-git-send-email-freddy77@gmail.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 74.125.82.53 Cc: qemu-devel@nongnu.org, Frediano Ziglio Subject: [Qemu-devel] [PATCH 1/2] linux aio: support flush operation 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 Signed-off-by: Frediano Ziglio --- block/raw-posix.c | 7 +++++++ linux-aio.c | 3 +++ 2 files changed, 10 insertions(+), 0 deletions(-) diff --git a/block/raw-posix.c b/block/raw-posix.c index 3c6bd4b..27ae81e 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -628,6 +628,13 @@ static BlockDriverAIOCB *raw_aio_flush(BlockDriverState *bs, if (fd_open(bs) < 0) return NULL; +#ifdef CONFIG_LINUX_AIO + if (s->use_aio) { + return laio_submit(bs, s->aio_ctx, s->fd, 0, NULL, + 0, cb, opaque, QEMU_AIO_FLUSH); + } +#endif + return paio_submit(bs, s->fd, 0, NULL, 0, cb, opaque, QEMU_AIO_FLUSH); } diff --git a/linux-aio.c b/linux-aio.c index 68f4b3d..d07c435 100644 --- a/linux-aio.c +++ b/linux-aio.c @@ -215,6 +215,9 @@ BlockDriverAIOCB *laio_submit(BlockDriverState *bs, void *aio_ctx, int fd, case QEMU_AIO_READ: io_prep_preadv(iocbs, fd, qiov->iov, qiov->niov, offset); break; + case QEMU_AIO_FLUSH: + io_prep_fdsync(iocbs, fd); + break; default: fprintf(stderr, "%s: invalid AIO request type 0x%x.\n", __func__, type);