diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 888c657..5cf3940 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -116,8 +116,12 @@
        .features       = CLOCK_EVT_FEAT_ONESHOT,
 };
 
-static DEFINE_PER_CPU(struct clock_event_device, decrementers);
-static DEFINE_PER_CPU(u64, decrementer_next_tb);
+struct decrementer_clock {
+	struct clock_event_device event;
+	u64 next_tb;
+};
+
+static DEFINE_PER_CPU(struct decrementer_clock, decrementers);
 
 #ifdef CONFIG_PPC_ISERIES
 static unsigned long __initdata iSeries_recal_titan;
@@ -555,8 +559,8 @@
 void timer_interrupt(struct pt_regs * regs)
 {
 	struct pt_regs *old_regs;
-	int cpu = smp_processor_id();
-	struct clock_event_device *evt = &per_cpu(decrementers, cpu);
+	struct decrementer_clock *decrementer =  &__get_cpu_var(decrementers);
+	struct clock_event_device *evt = &decrementer->event;
 	u64 now;
 
 	/* Ensure a positive value is written to the decrementer, or else
@@ -569,9 +573,9 @@
 #endif
 
 	now = get_tb_or_rtc();
-	if (now < per_cpu(decrementer_next_tb, cpu)) {
+	if (now < decrementer->next_tb) {
 		/* not time for this event yet */
-		now = per_cpu(decrementer_next_tb, cpu) - now;
+		now = decrementer->next_tb - now;
 		if (now <= DECREMENTER_MAX)
 			set_dec((int)now);
 		return;
@@ -810,7 +814,7 @@
 static int decrementer_set_next_event(unsigned long evt,
 				      struct clock_event_device *dev)
 {
-	__get_cpu_var(decrementer_next_tb) = get_tb_or_rtc() + evt;
+	__get_cpu_var(decrementers).next_tb = get_tb_or_rtc() + evt;
 	set_dec(evt);
 	return 0;
 }
@@ -824,7 +828,7 @@
 
 static void register_decrementer_clockevent(int cpu)
 {
-	struct clock_event_device *dec = &per_cpu(decrementers, cpu);
+	struct clock_event_device *dec = &per_cpu(decrementers, cpu).event;
 
 	*dec = decrementer_clockevent;
 	dec->cpumask = cpumask_of_cpu(cpu);