From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net] tcp: only take RTT from timestamps if new data is
 acked
Date: Sun, 27 Oct 2013 16:51:45 -0400 (EDT)
Message-ID: <20131027.165145.1610383415582119785.davem@davemloft.net>
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From: Yuchung Cheng <ycheng@google.com>
Date: Thu, 24 Oct 2013 08:55:25 -0700

> Patch ed08495c3 "tcp: use RTT from SACK for RTO" has a bug that
> it does not check if the ACK acknowledge new data before taking
> the RTT sample from TCP timestamps. This patch adds the check
> back as required by the RFC.
> 
> Signed-off-by: Yuchung Cheng <ycheng@google.com>

Applied and queued up for -stable.