_Q_SLOW_VAL 391 kernel/locking/qspinlock_paravirt.h WRITE_ONCE(lock->locked, _Q_SLOW_VAL); _Q_SLOW_VAL 456 kernel/locking/qspinlock_paravirt.h if (xchg(&lock->locked, _Q_SLOW_VAL) == 0) { _Q_SLOW_VAL 470 kernel/locking/qspinlock_paravirt.h pv_wait(&lock->locked, _Q_SLOW_VAL); _Q_SLOW_VAL 497 kernel/locking/qspinlock_paravirt.h if (unlikely(locked != _Q_SLOW_VAL)) {