From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hoang Tran Subject: [PATCH net-next] tcp: fix under-evaluated ssthresh in TCP Vegas Date: Wed, 27 Sep 2017 18:30:58 +0200 Message-ID: <1506529940-2143-1-git-send-email-hoang.tran@uclouvain.be> Cc: Hoang Tran , "David S. Miller" , Alexey Kuznetsov , Hideaki YOSHIFUJI , linux-kernel@vger.kernel.org To: netdev@vger.kernel.org Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org With the commit 76174004a0f19785 (tcp: do not slow start when cwnd equals ssthresh), the comparison to the reduced cwnd in tcp_vegas_ssthresh() would under-evaluate the ssthresh. Signed-off-by: Hoang Tran --- net/ipv4/tcp_vegas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c index 218cfcc..ee113ff 100644 --- a/net/ipv4/tcp_vegas.c +++ b/net/ipv4/tcp_vegas.c @@ -158,7 +158,7 @@ EXPORT_SYMBOL_GPL(tcp_vegas_cwnd_event); static inline u32 tcp_vegas_ssthresh(struct tcp_sock *tp) { - return min(tp->snd_ssthresh, tp->snd_cwnd-1); + return min(tp->snd_ssthresh, tp->snd_cwnd); } static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 acked) -- 2.7.4