{
if (enabled_devices) {
initialized = 0;
- kick_all_cpus_sync();
+ wake_up_all_idle_cpus();
}
+
+ /*
+ * Make sure external observers (such as the scheduler)
+ * are done looking at pointed idle states.
+ */
+ synchronize_rcu();
}
/**
#ifdef CONFIG_SMP
-static void smp_callback(void *v)
-{
- /* we already woke the CPU up, nothing more to do */
-}
-
/*
* This function gets called when a part of the kernel has a new latency
* requirement. This means we need to get all processors out of their C-state,
static int cpuidle_latency_notify(struct notifier_block *b,
unsigned long l, void *v)
{
- smp_call_function(smp_callback, NULL, 1);
+ wake_up_all_idle_cpus();
return NOTIFY_OK;
}