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Commit 8b5621f1 authored by Milton Miller's avatar Milton Miller Committed by Paul Mackerras
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[POWERPC] Use __get_cpu_var in time.c 



Use __get_cpu_var(x) instead of per_cpu(x, smp_processor_id()), as it
is optimized on ppc64 to access the current cpu's per-cpu offset directly;
it's local_paca.offset instead of TOC->paca[local_paca->processor_id].offset.

This is the trivial portion, two functions with one use each.

Signed-off-by: default avatarMilton Miller <miltonm@bga.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent c481887f

arch/powerpc/kernel/time.c

+2 −2
Original line number Diff line number Diff line
@@ -327,7 +327,7 @@ void calculate_steal_time(void) 


	if (!cpu_has_feature(CPU_FTR_PURR))

		return;

	pme = &per_cpu(cpu_purr_data, smp_processor_id());

	pme = &__get_cpu_var(cpu_purr_data);

	if (!pme->initialized)

		return;		/* this can happen in early boot */

	tb = mftb();
@@ -352,7 +352,7 @@ static void snapshot_purr(void) 
	if (!cpu_has_feature(CPU_FTR_PURR))

		return;

	local_irq_save(flags);

	pme = &per_cpu(cpu_purr_data, smp_processor_id());

	pme = &__get_cpu_var(cpu_purr_data);

	pme->tb = mftb();

	pme->purr = mfspr(SPRN_PURR);

	pme->initialized = 1;