diff options
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index b1e743b39a83..cfe128b81a01 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -4127,8 +4127,13 @@ int tcp_rtx_synack(const struct sock *sk, struct request_sock *req) if (!res) { TCP_INC_STATS(sock_net(sk), TCP_MIB_RETRANSSEGS); NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPSYNRETRANS); - if (unlikely(tcp_passive_fastopen(sk))) - tcp_sk(sk)->total_retrans++; + if (unlikely(tcp_passive_fastopen(sk))) { + /* sk has const attribute because listeners are lockless. + * However in this case, we are dealing with a passive fastopen + * socket thus we can change total_retrans value. + */ + tcp_sk_rw(sk)->total_retrans++; + } trace_tcp_retransmit_synack(sk, req); } return res; |