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author | David S. Miller <davem@davemloft.net> | 2011-08-07 23:20:26 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2011-08-07 23:20:26 -0700 |
commit | 19fd61785a580c60cba900c5171bfadb57dd5056 (patch) | |
tree | 1e491fb014be0dc03f4b6755bb94e73afd38c455 /net/ipv6/ip6_output.c | |
parent | netxen: add vlan LRO support (diff) | |
parent | dp83640: increase receive time stamp buffer size (diff) | |
download | linux-dev-19fd61785a580c60cba900c5171bfadb57dd5056.tar.xz linux-dev-19fd61785a580c60cba900c5171bfadb57dd5056.zip |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/ipv6/ip6_output.c')
-rw-r--r-- | net/ipv6/ip6_output.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 32e5339db0c8..4c882cf4e8a1 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -135,10 +135,15 @@ static int ip6_finish_output2(struct sk_buff *skb) skb->len); } + rcu_read_lock(); neigh = dst_get_neighbour(dst); - if (neigh) - return neigh_output(neigh, skb); + if (neigh) { + int res = neigh_output(neigh, skb); + rcu_read_unlock(); + return res; + } + rcu_read_unlock(); IP6_INC_STATS_BH(dev_net(dst->dev), ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES); kfree_skb(skb); @@ -975,12 +980,14 @@ static int ip6_dst_lookup_tail(struct sock *sk, * dst entry and replace it instead with the * dst entry of the nexthop router */ + rcu_read_lock(); n = dst_get_neighbour(*dst); if (n && !(n->nud_state & NUD_VALID)) { struct inet6_ifaddr *ifp; struct flowi6 fl_gw6; int redirect; + rcu_read_unlock(); ifp = ipv6_get_ifaddr(net, &fl6->saddr, (*dst)->dev, 1); @@ -1000,6 +1007,8 @@ static int ip6_dst_lookup_tail(struct sock *sk, if ((err = (*dst)->error)) goto out_err_release; } + } else { + rcu_read_unlock(); } #endif |