runqueue_is_locked()

/**
 * runqueue_is_locked
 * @cpu: the processor in question.
 *
 * Returns true if the current cpu runqueue is locked.
 * This interface allows printk to be called with the runqueue lock
 * held and know whether or not it is OK to wake up the klogd.
 */
int runqueue_is_locked(int cpu)
{
    return raw_spin_is_locked(&cpu_rq(cpu)->lock);
}