static int kick_secondary_cpus(int maxcpus)
{
int cpuid;
for_each_present_cpu(cpuid) {
int threads;
int i;
threads = cpu_threads(cpuid);
for (i = 0; i < threads; i++)
cpu_set(i, cpu_sibling_map[cpuid]);
/* For now everything is single core */
cpu_set(cpuid, cpu_core_map[cpuid]);
rcu_online_cpu(cpuid);
numa_set_node(cpuid, 0);
numa_add_cpu(cpuid);
if (cpuid == 0)
continue;
if (cpuid >= maxcpus)
break;
init_parea(cpuid);
smp_generic_give_timebase();
/* wait for it */
while (!cpu_online(cpuid))
cpu_relax();
}
return 0;
}
static int __cpuinit rcu_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
{
long cpu = (long)hcpu;
switch (action) {
case CPU_UP_PREPARE:
rcu_online_cpu(cpu);
break;
case CPU_DEAD:
rcu_offline_cpu(cpu);
break;
default:
break;
}
return NOTIFY_OK;
}
void __init rcu_init(void)
{
rcu_online_cpu(smp_processor_id());
open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
}
