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

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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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Mike Travis 2009-01-04 05:18:10 -08:00 • committed by Ingo Molnar

parent 7503bfbae8

commit e39ad415ac

1 changed files with 43 additions and 40 deletions

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arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c

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