提交 8b5621f1 编写于 作者: M Milton Miller 提交者: Paul Mackerras

[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: NMilton Miller <miltonm@bga.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
上级 c481887f
......@@ -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;
......
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