diff options
Diffstat (limited to 'net/ipv6/icmp.c')
| -rw-r--r-- | net/ipv6/icmp.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index bbcdfd299692..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, @@ -953,13 +953,21 @@ 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(*per_cpu_ptr(net->ipv6.icmp_sk, i)); + free_percpu(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); + net->ipv6.icmp_sk = alloc_percpu(struct sock *); if (!net->ipv6.icmp_sk) return -ENOMEM; @@ -972,7 +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. @@ -982,22 +990,10 @@ 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, |