use __get_cpu_var(x) instead of per_cpu(x, smp_processor_id()), as it
is optimied on ppc64 to access the current cpus per-cpu offset directly.
Its 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: Milton Miller <[EMAIL PROTECTED]>
---
Index: kernel/arch/powerpc/kernel/time.c
===================================================================
--- kernel.orig/arch/powerpc/kernel/time.c 2007-12-13 20:37:03.000000000
-0600
+++ kernel/arch/powerpc/kernel/time.c 2007-12-13 20:37:03.000000000 -0600
@@ -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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