static int sched_rt_global_constraints(void)
{
	int ret = 0;

	mutex_lock(&rt_constraints_mutex);
	read_lock(&tasklist_lock);
	ret = __rt_schedulable(NULL, 0, 0);
	read_unlock(&tasklist_lock);
	mutex_unlock(&rt_constraints_mutex);

	return ret;
}
static int sched_rt_global_constraints(void)
{
	int ret = 0;

	mutex_lock(&rt_constraints_mutex);
	read_lock(&tasklist_lock);
	ret = __rt_schedulable(NULL, 0, 0);
	read_unlock(&tasklist_lock);
	mutex_unlock(&rt_constraints_mutex);

	return ret;
}