cpu_set(smp_processor_id(), cpu_possible_map);
void __devinit smp_prepare_boot_cpu(void){	cpu_set(smp_processor_id(), cpu_online_map);	cpu_set(smp_processor_id(), cpu_callout_map);	cpu_set(smp_processor_id(), cpu_present_map);	per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;}