From patchwork Fri Jan 18 10:16:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gao feng X-Patchwork-Id: 213544 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id F029C2C007B for ; Fri, 18 Jan 2013 21:16:36 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753846Ab3ARKQW (ORCPT ); Fri, 18 Jan 2013 05:16:22 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:58899 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753028Ab3ARKQU (ORCPT ); Fri, 18 Jan 2013 05:16:20 -0500 X-IronPort-AV: E=Sophos;i="4.84,491,1355068800"; d="scan'208";a="6611877" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 18 Jan 2013 18:14:05 +0800 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id r0IAG99T000441; Fri, 18 Jan 2013 18:16:10 +0800 Received: from Donkey.fnst.cn.fujitsu.com ([10.167.225.206]) by fnstmail02.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2013011818152232-1022381 ; Fri, 18 Jan 2013 18:15:22 +0800 From: Gao feng To: pablo@netfilter.org Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org, kaber@trash.net, ebiederm@xmission.com, canqunzhang@gmail.com, Gao feng Subject: [PATCH RESEND 08/10] netfilter: proto: move initial codes out of pernet_operations Date: Fri, 18 Jan 2013 18:16:28 +0800 Message-Id: <1358504190-6094-8-git-send-email-gaofeng@cn.fujitsu.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1358504190-6094-1-git-send-email-gaofeng@cn.fujitsu.com> References: <1358504190-6094-1-git-send-email-gaofeng@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/18 18:15:22, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/18 18:15:23, Serialize complete at 2013/01/18 18:15:23 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Move the global initial codes to the module_init/exit context. Signed-off-by: Gao feng --- include/net/netfilter/nf_conntrack_core.h | 7 +++++-- net/netfilter/nf_conntrack_core.c | 13 +++++++++--- net/netfilter/nf_conntrack_proto.c | 35 +++++++++++++++++-------------- 3 files changed, 34 insertions(+), 21 deletions(-) diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h index e05c1f6..3952e92 100644 --- a/include/net/netfilter/nf_conntrack_core.h +++ b/include/net/netfilter/nf_conntrack_core.h @@ -28,8 +28,11 @@ extern unsigned int nf_conntrack_in(struct net *net, extern int nf_conntrack_init_net(struct net *net); extern void nf_conntrack_cleanup_net(struct net *net); -extern int nf_conntrack_proto_init(struct net *net); -extern void nf_conntrack_proto_fini(struct net *net); +extern int nf_conntrack_proto_init(void); +extern void nf_conntrack_proto_fini(void); + +extern int nf_conntrack_proto_pernet_init(struct net *net); +extern void nf_conntrack_proto_pernet_fini(struct net *net); extern int nf_conntrack_init_start(void); extern void nf_conntrack_cleanup_start(void); diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 91b240c..be43427 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -1345,6 +1345,7 @@ void nf_conntrack_cleanup_end(void) #ifdef CONFIG_NF_CONNTRACK_ZONES nf_ct_extend_unregister(&nf_ct_zone_extend); #endif + nf_conntrack_proto_fini(); nf_conntrack_helper_fini(); nf_conntrack_timeout_fini(); nf_conntrack_ecache_fini(); @@ -1374,7 +1375,7 @@ void nf_conntrack_cleanup_net(struct net *net) } nf_ct_free_hashtable(net->ct.hash, net->ct.htable_size); - nf_conntrack_proto_fini(net); + nf_conntrack_proto_pernet_fini(net); nf_conntrack_helper_pernet_fini(net); nf_conntrack_ecache_pernet_fini(net); nf_conntrack_tstamp_pernet_fini(net); @@ -1532,6 +1533,10 @@ int nf_conntrack_init_start(void) if (ret < 0) goto err_extend; #endif + ret = nf_conntrack_proto_init(); + if (ret < 0) + goto err_proto; + /* Set up fake conntrack: to never be deleted, not in any hashes */ for_each_possible_cpu(cpu) { struct nf_conn *ct = &per_cpu(nf_conntrack_untracked, cpu); @@ -1542,10 +1547,12 @@ int nf_conntrack_init_start(void) nf_ct_untracked_status_or(IPS_CONFIRMED | IPS_UNTRACKED); return 0; +err_proto: #ifdef CONFIG_NF_CONNTRACK_ZONES + nf_ct_extend_unregister(&nf_ct_zone_extend); err_extend: - nf_conntrack_helper_fini(); #endif + nf_conntrack_helper_fini(); err_helper: nf_conntrack_timeout_fini(); err_timeout: @@ -1628,7 +1635,7 @@ int nf_conntrack_init_net(struct net *net) ret = nf_conntrack_helper_pernet_init(net); if (ret < 0) goto err_helper; - ret = nf_conntrack_proto_init(net); + ret = nf_conntrack_proto_pernet_init(net); if (ret < 0) goto err_proto; return 0; diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index 51e928d..3d01b90 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -503,9 +503,8 @@ void nf_conntrack_l4proto_unregister(struct net *net, } EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister); -int nf_conntrack_proto_init(struct net *net) +int nf_conntrack_proto_pernet_init(struct net *net) { - unsigned int i; int err; struct nf_proto_net *pn = nf_ct_l4proto_net(net, &nf_conntrack_l4proto_generic); @@ -520,29 +519,33 @@ int nf_conntrack_proto_init(struct net *net) if (err < 0) return err; - if (net == &init_net) { - for (i = 0; i < AF_MAX; i++) - rcu_assign_pointer(nf_ct_l3protos[i], - &nf_conntrack_l3proto_generic); - } - pn->users++; return 0; } -void nf_conntrack_proto_fini(struct net *net) +void nf_conntrack_proto_pernet_fini(struct net *net) { - unsigned int i; struct nf_proto_net *pn = nf_ct_l4proto_net(net, &nf_conntrack_l4proto_generic); - pn->users--; nf_ct_l4proto_unregister_sysctl(net, pn, &nf_conntrack_l4proto_generic); - if (net == &init_net) { - /* free l3proto protocol tables */ - for (i = 0; i < PF_MAX; i++) - kfree(nf_ct_protos[i]); - } +} + +int nf_conntrack_proto_init(void) +{ + unsigned int i; + for (i = 0; i < AF_MAX; i++) + rcu_assign_pointer(nf_ct_l3protos[i], + &nf_conntrack_l3proto_generic); + return 0; +} + +void nf_conntrack_proto_fini(void) +{ + unsigned int i; + /* free l3proto protocol tables */ + for (i = 0; i < PF_MAX; i++) + kfree(nf_ct_protos[i]); }