diff --git a/arch/ppc64/kernel/process.c b/arch/ppc64/kernel/process.c
--- a/arch/ppc64/kernel/process.c
+++ b/arch/ppc64/kernel/process.c
@@ -163,6 +163,7 @@ int dump_task_altivec(struct pt_regs *re
 #endif /* CONFIG_ALTIVEC */
 
 DEFINE_PER_CPU(struct cpu_usage, cpu_usage_array);
+EXPORT_PER_CPU_SYMBOL(cpu_usage_array);
 
 struct task_struct *__switch_to(struct task_struct *prev,
 				struct task_struct *new)