_Q_MUST_Q_VAL
: "r" (&lock->val), "r" (_Q_MUST_Q_VAL)
: "r" (&lock->val), "r" (_Q_MUST_Q_VAL)
if ((val & _Q_MUST_Q_VAL) && pv_yield_allow_steal)
if (val & _Q_MUST_Q_VAL)
val |= _Q_MUST_Q_VAL;