[TCP] FRTO: Response should reset also snd_cwnd_cnt

Since purpose is to reduce CWND, we prevent immediate growth. This
is not a major issue nor is "the correct way" specified anywhere.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index cc935c8a6aae26d8c4a6cb0d8e8f8c8450712214..924b2e6d7d15f80be530c5d9afbd83eb72fe3a82 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2490,6 +2490,7 @@ static int tcp_ack_update_window(struct sock *sk, struct tcp_sock *tp,
 static void tcp_conservative_spur_to_response(struct tcp_sock *tp)
 {
        tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
+       tp->snd_cwnd_cnt = 0;
        tcp_moderate_cwnd(tp);
 }