From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:50706 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751953AbdLUIoP (ORCPT ); Thu, 21 Dec 2017 03:44:15 -0500 Subject: Patch "tcp: fix under-evaluated ssthresh in TCP Vegas" has been added to the 4.9-stable tree To: tranviethoang.vn@gmail.com, alexander.levin@verizon.com, davem@davemloft.net, gregkh@linuxfoundation.org, hoang.tran@uclouvain.be Cc: , From: Date: Thu, 21 Dec 2017 09:40:55 +0100 Message-ID: <1513845655205199@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled tcp: fix under-evaluated ssthresh in TCP Vegas to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: tcp-fix-under-evaluated-ssthresh-in-tcp-vegas.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Thu Dec 21 09:02:40 CET 2017 From: Hoang Tran Date: Wed, 27 Sep 2017 18:30:58 +0200 Subject: tcp: fix under-evaluated ssthresh in TCP Vegas From: Hoang Tran [ Upstream commit cf5d74b85ef40c202c76d90959db4d850f301b95 ] 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 Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- net/ipv4/tcp_vegas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- 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) Patches currently in stable-queue which might be from tranviethoang.vn@gmail.com are queue-4.9/tcp-fix-under-evaluated-ssthresh-in-tcp-vegas.patch