From: Mike Travis <travis@sgi.com>
Date: Sun, 4 Jan 2009 13:18:10 +0000 (-0800)
Subject: cpumask: use work_on_cpu in acpi-cpufreq.c for read_measured_perf_ctrs
X-Git-Tag: v2.6.29-rc1~5^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e39ad415ac15116df213dfa2aa2a4f1b0857af9c;p=pandora-kernel.git

cpumask: use work_on_cpu in acpi-cpufreq.c for read_measured_perf_ctrs

Impact: use new cpumask API to reduce stack usage

Replace the saving of current->cpus_allowed and set_cpus_allowed_ptr() with
a work_on_cpu function for read_measured_perf_ctrs().

Basically splits off the work function from get_measured_perf which is
run on the designated cpu.  Moves definition of struct perf_cur out of
function local namespace, and is used as the work function argument.
References in get_measured_perf use values in the perf_cur struct.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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