wake_q_empty
lockevent_cond_inc(rtmutex_slow_wake, !wake_q_empty(wake_q));
lockevent_cond_inc(rtlock_slow_wake, !wake_q_empty(wake_q));
if (!wake_q_empty(&wqh->head))
if (!wake_q_empty(&wake_q))
if (!wake_q_empty(&wake_q)) {
if (!wake_q_empty(wake_q))
if (trace_contended_release_enabled() && !wake_q_empty(&wake_q))
if (!wake_q_empty(&wake_q))