tcp: add rcu protection around tp->fastopen_rsk

[linux-2.6-block.git] / net / ipv4 / tcp_output.c

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index fec6d67bfd146dc78f0f25173fd71b8b8cc752fe..84ae4d1449ea7eb9da2c536363b88807f35a4283 100644 (file)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2482,7 +2482,7 @@ bool tcp_schedule_loss_probe(struct sock *sk, bool advancing_rto)
        /* Don't do any loss probe on a Fast Open connection before 3WHS
         * finishes.
         */
-       if (tp->fastopen_rsk)
+       if (rcu_access_pointer(tp->fastopen_rsk))
                return false;
 
        early_retrans = sock_net(sk)->ipv4.sysctl_tcp_early_retrans;