From: Milton Miller <miltonm@bga.com>
Date: Fri, 14 Dec 2007 04:52:15 +0000 (+1100)
Subject: [POWERPC] Timer interrupt: use a struct for two per_cpu varables
X-Git-Tag: v2.6.25-rc1~1131^2~262
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e6b44e8223a01d35fceec3631be356fbdbcf004;p=pandora-kernel.git

[POWERPC] Timer interrupt: use a struct for two per_cpu varables

timer_interrupt() was calculating per_cpu_offset several times, having to
start from the toc because of potential aliasing issues.

Placing both decrementer per_cpu varables in a struct and calculating
the address once with __get_cpu_var results in better code on both 32
and 64 bit.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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