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| author | David S. Miller <davem@davemloft.net> | 2012-08-22 23:21:38 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-22 23:21:38 +0200 |
| commit | 1304a7343b30fc4f16045412efdbb4179a3d9255 (patch) | |
| tree | 83d667ac4f62e30f70305ce4cc7e030e3465f92e /net/ipv4/inet_connection_sock.c | |
| parent | team: add support for non-ethernet devices (diff) | |
| parent | Merge branch 'akpm' (Andrew's patch-bomb) (diff) | |
| download | linux-1304a7343b30fc4f16045412efdbb4179a3d9255.tar.xz linux-1304a7343b30fc4f16045412efdbb4179a3d9255.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/ipv4/inet_connection_sock.c')
| -rw-r--r-- | net/ipv4/inet_connection_sock.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index db0cf17c00f7..7f75f21d7b83 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -404,12 +404,15 @@ struct dst_entry *inet_csk_route_child_sock(struct sock *sk, { const struct inet_request_sock *ireq = inet_rsk(req); struct inet_sock *newinet = inet_sk(newsk); - struct ip_options_rcu *opt = ireq->opt; + struct ip_options_rcu *opt; struct net *net = sock_net(sk); struct flowi4 *fl4; struct rtable *rt; fl4 = &newinet->cork.fl.u.ip4; + + rcu_read_lock(); + opt = rcu_dereference(newinet->inet_opt); flowi4_init_output(fl4, sk->sk_bound_dev_if, sk->sk_mark, RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE, sk->sk_protocol, inet_sk_flowi_flags(sk), @@ -421,11 +424,13 @@ struct dst_entry *inet_csk_route_child_sock(struct sock *sk, goto no_route; if (opt && opt->opt.is_strictroute && rt->rt_gateway) goto route_err; + rcu_read_unlock(); return &rt->dst; route_err: ip_rt_put(rt); no_route: + rcu_read_unlock(); IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES); return NULL; } |