+ int cpu = smp_processor_id();
+
+ for (;;) {
+ while (!need_resched()) {
+ if (ppc_md.idle != NULL)
+ ppc_md.idle();
+ else
+ default_idle();
+ }
+
+ if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
+ cpu_die();
+ preempt_enable_no_resched();
+ schedule();
+ preempt_disable();
+ }