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
__pv_queued_spin_unlock(struct qspinlock *lock)8 void __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