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author | David S. Miller | 2008-08-30 08:06:00 +0200 |
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committer | David S. Miller | 2008-08-30 08:06:00 +0200 |
commit | b171e19ed08c8ba832e5325fadf1be493f56665d (patch) | |
tree | 017208f9fcc4ef2cc3fe5cc3f262d2455eda9f61 /net/ipv6/icmp.c | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil... (diff) | |
parent | net: Unbreak userspace usage of linux/mroute.h (diff) | |
download | kernel-qcow2-linux-b171e19ed08c8ba832e5325fadf1be493f56665d.tar.gz kernel-qcow2-linux-b171e19ed08c8ba832e5325fadf1be493f56665d.tar.xz kernel-qcow2-linux-b171e19ed08c8ba832e5325fadf1be493f56665d.zip |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
net/mac80211/mlme.c
Diffstat (limited to 'net/ipv6/icmp.c')
-rw-r--r-- | net/ipv6/icmp.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index abedf95fdf2d..b3157a0cc15d 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -91,19 +91,22 @@ static struct inet6_protocol icmpv6_protocol = { .flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL, }; -static __inline__ int icmpv6_xmit_lock(struct sock *sk) +static __inline__ struct sock *icmpv6_xmit_lock(struct net *net) { + struct sock *sk; + local_bh_disable(); + sk = icmpv6_sk(net); if (unlikely(!spin_trylock(&sk->sk_lock.slock))) { /* This can happen if the output path (f.e. SIT or * ip6ip6 tunnel) signals dst_link_failure() for an * outgoing ICMP6 packet. */ local_bh_enable(); - return 1; + return NULL; } - return 0; + return sk; } static __inline__ void icmpv6_xmit_unlock(struct sock *sk) @@ -392,11 +395,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info, fl.fl_icmp_code = code; security_skb_classify_flow(skb, &fl); - sk = icmpv6_sk(net); - np = inet6_sk(sk); - - if (icmpv6_xmit_lock(sk)) + sk = icmpv6_xmit_lock(net); + if (sk == NULL) return; + np = inet6_sk(sk); if (!icmpv6_xrlim_allow(sk, type, &fl)) goto out; @@ -539,11 +541,10 @@ static void icmpv6_echo_reply(struct sk_buff *skb) fl.fl_icmp_type = ICMPV6_ECHO_REPLY; security_skb_classify_flow(skb, &fl); - sk = icmpv6_sk(net); - np = inet6_sk(sk); - - if (icmpv6_xmit_lock(sk)) + sk = icmpv6_xmit_lock(net); + if (sk == NULL) return; + np = inet6_sk(sk); if (!fl.oif && ipv6_addr_is_multicast(&fl.fl6_dst)) fl.oif = np->mcast_oif; |