Patch "tcp: fix under-evaluated ssthresh in TCP Vegas" has been added to the 4.9-stable tree
Subsystems (3)
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 <[email protected]> know about it.
Quoted 1 line
From foo@baz Thu Dec 21 09:02:40 CET 2017
From: Hoang Tran <[email protected]>
Date: Wed, 27 Sep 2017 18:30:58 +0200
Subject: tcp: fix under-evaluated ssthresh in TCP Vegas
From: Hoang Tran <[email protected]>
[ 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.
--- net/ipv4/tcp_vegas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
net/ipv4/tcp_vegas.c +1 -1
@@ -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 [email protected] are
queue-4.9/tcp-fix-under-evaluated-ssthresh-in-tcp-vegas.patch