From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Sun, 21 Sep 2008 04:25:15 +0000 (-0700)
Subject: tcp: don't clear retransmit_skb_hint when not necessary
X-Git-Tag: v2.6.28-rc1~717^2~255
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef9da47c7cc64d69526331f315e76b5680d4048f;p=pandora-kernel.git

tcp: don't clear retransmit_skb_hint when not necessary

Most importantly avoid doing it with cumulative ACK. Not clearing
means that we no longer need n^2 processing in resolution of each
fast recovery.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
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