From: stephen hemminger <shemminger@vyatta.com>
Date: Mon, 14 Mar 2011 07:52:13 +0000 (+0000)
Subject: tcp_cubic: fix comparison of jiffies
X-Git-Tag: v2.6.39-rc1~468^2~19^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c54b4b7655447c1f24f6d50779c22eba9ee0fd24;p=pandora-kernel.git

tcp_cubic: fix comparison of jiffies

Jiffies wraps around therefore the correct way to compare is
to use cast to signed value.

Note: cubic is not using full jiffies value on 64 bit arch
because using full unsigned long makes struct bictcp grow too
large for the available ca_priv area.

Includes correction from Sangtae Ha to improve ack train detection.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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