From patchwork Tue Mar 1 05:37:03 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 8462081 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 2C7019F38C for ; Tue, 1 Mar 2016 05:38:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 80F9E20328 for ; Tue, 1 Mar 2016 05:38:55 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 37CED202F0 for ; Tue, 1 Mar 2016 05:38:53 +0000 (UTC) Received: from localhost ([::1]:41036 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aad1I-0005ur-M8 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 01 Mar 2016 00:38:52 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36089) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aad0A-00046b-01 for qemu-devel@nongnu.org; Tue, 01 Mar 2016 00:37:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aad06-0003sv-Mr for qemu-devel@nongnu.org; Tue, 01 Mar 2016 00:37:41 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:37890) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aad06-0003sE-0Q for qemu-devel@nongnu.org; Tue, 01 Mar 2016 00:37:38 -0500 Received: from 172.24.1.50 (EHLO szxeml426-hub.china.huawei.com) ([172.24.1.50]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DFM10853; Tue, 01 Mar 2016 13:37:26 +0800 (CST) Received: from localhost (10.177.24.212) by szxeml426-hub.china.huawei.com (10.82.67.181) with Microsoft SMTP Server id 14.3.235.1; Tue, 1 Mar 2016 13:37:14 +0800 From: zhanghailiang To: Date: Tue, 1 Mar 2016 13:37:03 +0800 Message-ID: <1456810623-8980-3-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1456810623-8980-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1456810623-8980-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.24.212] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.56D52A97.0150, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 4c673432e53bc1810bd9d8cbb3f7790a X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 58.251.152.64 Cc: jasowang@redhat.com, zhanghailiang , hongyang.yang@easystack.cn Subject: [Qemu-devel] [PATCH v3 2/2] filter-buffer: Add status_changed callback processing 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP While the status of filter-buffer changing from 'on' to 'off', it need to release all the buffered packets, and delete the related timer, while switch from 'off' to 'on', it need to resume the release packets timer. Here, we extract the process of setup timer into a new helper, which will be used in the new status_changed callback. Signed-off-by: zhanghailiang Cc: Jason Wang Cc: Yang Hongyang --- v3: - Extract the process of setup timer into a new helper v2: - New patch --- net/filter-buffer.c | 34 ++++++++++++++++++++++++++++------ 1 file changed, 28 insertions(+), 6 deletions(-) diff --git a/net/filter-buffer.c b/net/filter-buffer.c index 12ad2e3..972177b 100644 --- a/net/filter-buffer.c +++ b/net/filter-buffer.c @@ -100,6 +100,19 @@ static void filter_buffer_cleanup(NetFilterState *nf) } } +static void filter_buffer_setup_timer(NetFilterState *nf) +{ + FilterBufferState *s = FILTER_BUFFER(nf); + + if (s->interval) { + timer_init_us(&s->release_timer, QEMU_CLOCK_VIRTUAL, + filter_buffer_release_timer, nf); + /* Timer armed to fire in s->interval microseconds. */ + timer_mod(&s->release_timer, + qemu_clock_get_us(QEMU_CLOCK_VIRTUAL) + s->interval); + } +} + static void filter_buffer_setup(NetFilterState *nf, Error **errp) { FilterBufferState *s = FILTER_BUFFER(nf); @@ -115,12 +128,20 @@ static void filter_buffer_setup(NetFilterState *nf, Error **errp) } s->incoming_queue = qemu_new_net_queue(qemu_netfilter_pass_to_next, nf); - if (s->interval) { - timer_init_us(&s->release_timer, QEMU_CLOCK_VIRTUAL, - filter_buffer_release_timer, nf); - /* Timer armed to fire in s->interval microseconds. */ - timer_mod(&s->release_timer, - qemu_clock_get_us(QEMU_CLOCK_VIRTUAL) + s->interval); + filter_buffer_setup_timer(nf); +} + +static void filter_buffer_status_changed(NetFilterState *nf, Error **errp) +{ + FilterBufferState *s = FILTER_BUFFER(nf); + + if (!nf->on) { + if (s->interval) { + timer_del(&s->release_timer); + } + filter_buffer_flush(nf); + } else { + filter_buffer_setup_timer(nf); } } @@ -131,6 +152,7 @@ static void filter_buffer_class_init(ObjectClass *oc, void *data) nfc->setup = filter_buffer_setup; nfc->cleanup = filter_buffer_cleanup; nfc->receive_iov = filter_buffer_receive_iov; + nfc->status_changed = filter_buffer_status_changed; } static void filter_buffer_get_interval(Object *obj, Visitor *v,