From: <gregkh@linuxfoundation.org>
To: tranviethoang.vn@gmail.com, alexander.levin@verizon.com,
davem@davemloft.net, gregkh@linuxfoundation.org,
hoang.tran@uclouvain.be
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "tcp: fix under-evaluated ssthresh in TCP Vegas" has been added to the 4.9-stable tree
Date: Thu, 21 Dec 2017 09:40:55 +0100 [thread overview]
Message-ID: <1513845655205199@kroah.com> (raw)
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 <stable@vger.kernel.org> know about it.
>From foo@baz Thu Dec 21 09:02:40 CET 2017
From: Hoang Tran <tranviethoang.vn@gmail.com>
Date: Wed, 27 Sep 2017 18:30:58 +0200
Subject: tcp: fix under-evaluated ssthresh in TCP Vegas
From: Hoang Tran <tranviethoang.vn@gmail.com>
[ 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 <hoang.tran@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
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
reply other threads:[~2017-12-21 8:44 UTC|newest]
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