From: Stephen Hemminger <shemminger@vyatta.com>
Date: Mon, 25 Jan 2010 23:47:50 +0000 (-0800)
Subject: tcp_probe: avoid modulus operation and wrap fix
X-Git-Tag: v2.6.33-rc6~29^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f81074f86176605bfbfafb9944e27628a4e26ce6;p=pandora-kernel.git

tcp_probe: avoid modulus operation and wrap fix

By rounding up the buffer size to power of 2, several expensive
modulus operations can be avoided.  This patch also solves a bug where
the gap need when ring gets full was not being accounted for.

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