1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ASM_QSPINLOCK_PARAVIRT_H 3#define __ASM_QSPINLOCK_PARAVIRT_H 4 5#ifdef CONFIG_64BIT 6 7#define __pv_queued_spin_unlock __pv_queued_spin_unlock 8void __pv_queued_spin_unlock(struct qspinlock *lock) 9{ 10 u8 lockval = cmpxchg(&lock->locked, _Q_LOCKED_VAL, 0); 11 12 if (likely(lockval == _Q_LOCKED_VAL)) 13 return; 14 __pv_queued_spin_unlock_slowpath(lock, lockval); 15} 16 17#endif /* CONFIG_64BIT */ 18#endif 19