From: Neal Cardwell <ncardwell@google.com>
Date: Thu, 10 Sep 2015 04:54:37 +0000 (-0700)
Subject: tcp: generate CA_EVENT_TX_START on data frames
X-Git-Tag: omap-for-v4.3/fixes-rc1~42^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05c5a46d71f621df620fbabbd7758ee1b44575ad;p=pandora-kernel.git

tcp: generate CA_EVENT_TX_START on data frames

Issuing a CC TX_START event on control frames like pure ACK
is a waste of time, as a CC should not care.

Following patch needs this change, as we want CUBIC to properly track
idle time at a low cost, with a single TX_START being generated.

Yuchung might slightly refine the condition triggering TX_START
on a followup patch.

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Cc: Jana Iyengar <jri@google.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Sangtae Ha <sangtae.ha@gmail.com>
Cc: Lawrence Brakmo <lawrence@brakmo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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