diff options
| author | Pekka Enberg <penberg@kernel.org> | 2011-09-19 17:46:07 +0300 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2011-09-19 17:46:07 +0300 |
| commit | d20bbfab01802e195a50435940f7e4aa747c217c (patch) | |
| tree | 82b0007e33c083050a4e60a49dbb2f5477b4c99d /net/ipv6/ip6_output.c | |
| parent | a37933c37c14b64e81c7c9cc44a5d3f5e0c91412 (diff) | |
| parent | 136333d104bd3a62d783b0ac3d0f32ac0108c5d0 (diff) | |
Merge branch 'slab/urgent' into slab/next
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 |