[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: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index cc82fd675f9108a79abfb302c7996d2f6a893ef3..888c65726ebd1fb5a91209ba7d87c3ddc24f3f68 100644 (file)
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -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;