From patchwork Tue Dec 29 07:09:33 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 561468 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id C1978140C15 for ; Tue, 29 Dec 2015 18:28:52 +1100 (AEDT) Received: from localhost ([::1]:47498 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aDoiA-0003V1-P1 for incoming@patchwork.ozlabs.org; Tue, 29 Dec 2015 02:28:50 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45803) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aDoRi-0006QS-5V for qemu-devel@nongnu.org; Tue, 29 Dec 2015 02:11:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aDoRe-00078E-Vm for qemu-devel@nongnu.org; Tue, 29 Dec 2015 02:11:50 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:14895) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aDoRe-00077W-BT for qemu-devel@nongnu.org; Tue, 29 Dec 2015 02:11:46 -0500 Received: from 172.24.1.49 (EHLO SZXEML423-HUB.china.huawei.com) ([172.24.1.49]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id BTP42942; Tue, 29 Dec 2015 15:11:27 +0800 (CST) Received: from localhost (10.177.24.212) by SZXEML423-HUB.china.huawei.com (10.82.67.154) with Microsoft SMTP Server id 14.3.235.1; Tue, 29 Dec 2015 15:11:17 +0800 From: zhanghailiang To: Date: Tue, 29 Dec 2015 15:09:33 +0800 Message-ID: <1451372975-5048-38-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1451372975-5048-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1451372975-5048-1-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=0001.0A020201.56823220.001D, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: a732d78658eb25476e3a0b0b19929b90 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.66 Cc: xiecl.fnst@cn.fujitsu.com, lizhijian@cn.fujitsu.com, quintela@redhat.com, Jason Wang , yunhong.jiang@intel.com, eddie.dong@intel.com, peter.huangpeng@huawei.com, dgilbert@redhat.com, zhanghailiang , arei.gonglei@huawei.com, stefanha@redhat.com, amit.shah@redhat.com, zhangchen.fnst@cn.fujitsu.com, hongyang.yang@easystack.cn Subject: [Qemu-devel] [PATCH COLO-Frame v13 37/39] filter-buffer: Introduce a helper function to release packets 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 We need to release all the packets from VM in COLO or Micro-checkpoint, here we add a new helper function to realse the packets that buffered by default buffer-filter Signed-off-by: zhanghailiang Cc: Jason Wang Cc: Yang Hongyang --- v12: - Rename this helper function v11: - New patch --- include/net/filter.h | 1 + net/filter-buffer.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/include/net/filter.h b/include/net/filter.h index 08aa604..52cb38b 100644 --- a/include/net/filter.h +++ b/include/net/filter.h @@ -84,5 +84,6 @@ static inline bool qemu_need_skip_netfilter(NetFilterState *nf) void netdev_add_default_filter_buffer(const char *netdev_id, NetFilterDirection direction, Error **errp); +void qemu_release_default_filters_packets(void); void qemu_set_default_filters_status(bool enable); #endif /* QEMU_NET_FILTER_H */ diff --git a/net/filter-buffer.c b/net/filter-buffer.c index 90a50cc..d53b251 100644 --- a/net/filter-buffer.c +++ b/net/filter-buffer.c @@ -169,6 +169,24 @@ out: error_propagate(errp, local_err); } +static void release_default_filter_packets(NetFilterState *nf, + void *opaque, + Error **errp) +{ + if (!strcmp(object_get_typename(OBJECT(nf)), TYPE_FILTER_BUFFER)) { + + if (nf->is_default) { + filter_buffer_flush(nf); + } + } +} + +/* public APIs */ +void qemu_release_default_filters_packets(void) +{ + qemu_foreach_netfilter(release_default_filter_packets, NULL, NULL); +} + static void set_default_filter_status(NetFilterState *nf, void *opaque, Error **errp)