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Commit 75efc250 authored by Kefeng Wang's avatar Kefeng Wang Committed by David S. Miller
Browse files

ipv6: icmp: use percpu allocation 



Use percpu allocation for the ipv6.icmp_sk.

Signed-off-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3232a1ef

include/net/netns/ipv6.h

+1 −1
Original line number Diff line number Diff line
@@ -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;

net/ipv6/icmp.c

+5 −6
Original line number Diff line number Diff line
@@ -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.