From patchwork Fri Feb 22 01:57:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 1046513 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 445Dg13CjWz9s71 for ; Fri, 22 Feb 2019 12:45:01 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726647AbfBVBo5 (ORCPT ); Thu, 21 Feb 2019 20:44:57 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:44480 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726418AbfBVBoz (ORCPT ); Thu, 21 Feb 2019 20:44:55 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id EF5C2192633631C08134; Fri, 22 Feb 2019 09:44:52 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.408.0; Fri, 22 Feb 2019 09:44:46 +0800 From: Kefeng Wang To: , CC: Kefeng Wang Subject: [PATCH 1/3] ipv4: icmp: use icmp_sk_exit() Date: Fri, 22 Feb 2019 09:57:58 +0800 Message-ID: <20190222015800.192135-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Simply use icmp_sk_exit() when inet_ctl_sock_create() fail in icmp_sk_init(). Signed-off-by: Kefeng Wang --- net/ipv4/icmp.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 065997f414e6..364cfe5e414b 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -1245,9 +1245,7 @@ static int __net_init icmp_sk_init(struct net *net) return 0; fail: - for_each_possible_cpu(i) - inet_ctl_sock_destroy(*per_cpu_ptr(net->ipv4.icmp_sk, i)); - free_percpu(net->ipv4.icmp_sk); + icmp_sk_exit(net); return err; } From patchwork Fri Feb 22 01:57:59 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 1046512 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 445Dg03RzXz9s70 for ; Fri, 22 Feb 2019 12:45:00 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726517AbfBVBoz (ORCPT ); Thu, 21 Feb 2019 20:44:55 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:4247 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726213AbfBVBoy (ORCPT ); Thu, 21 Feb 2019 20:44:54 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id BBA34147E2FD2061FE45; Fri, 22 Feb 2019 09:44:52 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.408.0; Fri, 22 Feb 2019 09:44:46 +0800 From: Kefeng Wang To: , CC: Kefeng Wang Subject: [PATCH 2/3] ipv6: icmp: use icmpv6_sk_exit() Date: Fri, 22 Feb 2019 09:57:59 +0800 Message-ID: <20190222015800.192135-2-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190222015800.192135-1-wangkefeng.wang@huawei.com> References: <20190222015800.192135-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Simply use icmpv6_sk_exit() when inet_ctl_sock_create() fail in icmpv6_sk_init(). Signed-off-by: Kefeng Wang --- net/ipv6/icmp.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index bbcdfd299692..af520014def5 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -953,10 +953,19 @@ void icmpv6_flow_init(struct sock *sk, struct flowi6 *fl6, security_sk_classify_flow(sk, flowi6_to_flowi(fl6)); } +static void __net_exit icmpv6_sk_exit(struct net *net) +{ + int i; + + for_each_possible_cpu(i) + inet_ctl_sock_destroy(net->ipv6.icmp_sk[i]); + kfree(net->ipv6.icmp_sk); +} + static int __net_init icmpv6_sk_init(struct net *net) { struct sock *sk; - int err, i, j; + int err, i; net->ipv6.icmp_sk = kcalloc(nr_cpu_ids, sizeof(struct sock *), GFP_KERNEL); @@ -982,22 +991,10 @@ static int __net_init icmpv6_sk_init(struct net *net) return 0; fail: - for (j = 0; j < i; j++) - inet_ctl_sock_destroy(net->ipv6.icmp_sk[j]); - kfree(net->ipv6.icmp_sk); + icmpv6_sk_exit(net); return err; } -static void __net_exit icmpv6_sk_exit(struct net *net) -{ - int i; - - for_each_possible_cpu(i) { - inet_ctl_sock_destroy(net->ipv6.icmp_sk[i]); - } - kfree(net->ipv6.icmp_sk); -} - static struct pernet_operations icmpv6_sk_ops = { .init = icmpv6_sk_init, .exit = icmpv6_sk_exit, From patchwork Fri Feb 22 01:58:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 1046514 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 445Dg21NbFz9s70 for ; Fri, 22 Feb 2019 12:45:02 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726680AbfBVBpA (ORCPT ); Thu, 21 Feb 2019 20:45:00 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:4248 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726418AbfBVBo7 (ORCPT ); Thu, 21 Feb 2019 20:44:59 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id CE1B1DCB0E019407A1C7; Fri, 22 Feb 2019 09:44:57 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.408.0; Fri, 22 Feb 2019 09:44:47 +0800 From: Kefeng Wang To: , CC: Kefeng Wang Subject: [PATCH 3/3] ipv6: icmp: use percpu allocation Date: Fri, 22 Feb 2019 09:58:00 +0800 Message-ID: <20190222015800.192135-3-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190222015800.192135-1-wangkefeng.wang@huawei.com> References: <20190222015800.192135-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use percpu allocations for the ipv6.icmp_sk. Signed-off-by: Kefeng Wang --- include/net/netns/ipv6.h | 2 +- net/ipv6/icmp.c | 11 +++++------ 2 files changed, 6 insertions(+), 7 deletions(-) diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index ef1ed529f33c..b028a1dc150d 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -83,7 +83,7 @@ struct netns_ipv6 { struct fib6_table *fib6_local_tbl; struct fib_rules_ops *fib6_rules_ops; #endif - struct sock **icmp_sk; + struct sock * __percpu *icmp_sk; struct sock *ndisc_sk; struct sock *tcp_sk; struct sock *igmp_sk; diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index af520014def5..802faa2fcc0e 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -81,7 +81,7 @@ */ static inline struct sock *icmpv6_sk(struct net *net) { - return net->ipv6.icmp_sk[smp_processor_id()]; + return *this_cpu_ptr(net->ipv6.icmp_sk); } static int icmpv6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, @@ -958,8 +958,8 @@ static void __net_exit icmpv6_sk_exit(struct net *net) int i; for_each_possible_cpu(i) - inet_ctl_sock_destroy(net->ipv6.icmp_sk[i]); - kfree(net->ipv6.icmp_sk); + inet_ctl_sock_destroy(*per_cpu_ptr(net->ipv6.icmp_sk, i)); + free_percpu(net->ipv6.icmp_sk); } static int __net_init icmpv6_sk_init(struct net *net) @@ -967,8 +967,7 @@ static int __net_init icmpv6_sk_init(struct net *net) struct sock *sk; int err, i; - net->ipv6.icmp_sk = - kcalloc(nr_cpu_ids, sizeof(struct sock *), GFP_KERNEL); + net->ipv6.icmp_sk = alloc_percpu(struct sock *); if (!net->ipv6.icmp_sk) return -ENOMEM; @@ -981,7 +980,7 @@ static int __net_init icmpv6_sk_init(struct net *net) goto fail; } - net->ipv6.icmp_sk[i] = sk; + *per_cpu_ptr(net->ipv6.icmp_sk, i) = sk; /* Enough space for 2 64K ICMP packets, including * sk_buff struct overhead.