From: Yuchung Cheng <ycheng@google.com>
Date: Wed, 12 Aug 2015 18:18:18 +0000 (-0700)
Subject: tcp: don't extend RTO on failed loss probe attempts
X-Git-Tag: omap-for-v4.3/fixes-rc1~110^2~176^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcd16c0a95a8faf4d310f94d831b22f901c5a744;p=pandora-kernel.git

tcp: don't extend RTO on failed loss probe attempts

If TLP was unable to send a probe, it extended the RTO to
now + icsk_rto. But extending the RTO makes little sense
if no TLP probe went out. With this commit, instead of
extending the RTO we re-arm it relative to the transmit time
of the write queue head.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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