From patchwork Tue Mar 8 07:52:43 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 8530261 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 9998FC0553 for ; Tue, 8 Mar 2016 07:55:18 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CEB7C201C8 for ; Tue, 8 Mar 2016 07:55:17 +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 1BE772017E for ; Tue, 8 Mar 2016 07:55:17 +0000 (UTC) Received: from localhost ([::1]:32816 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adCU8-0008Ih-Dt for patchwork-qemu-devel@patchwork.kernel.org; Tue, 08 Mar 2016 02:55:16 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33538) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adCSp-0006Ej-4Z for qemu-devel@nongnu.org; Tue, 08 Mar 2016 02:53:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1adCSo-0000H2-1g for qemu-devel@nongnu.org; Tue, 08 Mar 2016 02:53:55 -0500 Received: from mx1.redhat.com ([209.132.183.28]:36631) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1adCSn-0000Gx-So for qemu-devel@nongnu.org; Tue, 08 Mar 2016 02:53:53 -0500 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 69934C0005D0; Tue, 8 Mar 2016 07:53:53 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (vpn1-5-240.pek2.redhat.com [10.72.5.240]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u287qkMh010527; Tue, 8 Mar 2016 02:53:48 -0500 From: Jason Wang To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Tue, 8 Mar 2016 15:52:43 +0800 Message-Id: <1457423564-9724-12-git-send-email-jasowang@redhat.com> In-Reply-To: <1457423564-9724-1-git-send-email-jasowang@redhat.com> References: <1457423564-9724-1-git-send-email-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: Jason Wang , zhanghailiang , Yang Hongyang Subject: [Qemu-devel] [PULL V2 11/12] 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 From: zhanghailiang 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 Signed-off-by: Jason Wang --- 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,