28 #define arch_spin_is_locked(x)	(READ_ONCE((x)->lock) != 0)
30 static inline void arch_spin_unlock(arch_spinlock_t *lock)  in arch_spin_unlock()  argument
32 	smp_store_release(&lock->lock, 0);  in arch_spin_unlock()
35 static inline int arch_spin_trylock(arch_spinlock_t *lock)  in arch_spin_trylock()  argument
42 		: "=r" (busy), "+A" (lock->lock)  in arch_spin_trylock()
49 static inline void arch_spin_lock(arch_spinlock_t *lock)  in arch_spin_lock()  argument
52 		if (arch_spin_is_locked(lock))  in arch_spin_lock()
55 		if (arch_spin_trylock(lock))  in arch_spin_lock()
62 static inline void arch_read_lock(arch_rwlock_t *lock)  in arch_read_lock()  argument
73 		: "+A" (lock->lock), "=&r" (tmp)  in arch_read_lock()
77 static inline void arch_write_lock(arch_rwlock_t *lock)  in arch_write_lock()  argument
88 		: "+A" (lock->lock), "=&r" (tmp)  in arch_write_lock()
92 static inline int arch_read_trylock(arch_rwlock_t *lock)  in arch_read_trylock()  argument
104 		: "+A" (lock->lock), "=&r" (busy)  in arch_read_trylock()
110 static inline int arch_write_trylock(arch_rwlock_t *lock)  in arch_write_trylock()  argument
122 		: "+A" (lock->lock), "=&r" (busy)  in arch_write_trylock()
128 static inline void arch_read_unlock(arch_rwlock_t *lock)  in arch_read_unlock()  argument
133 		: "+A" (lock->lock)  in arch_read_unlock()
138 static inline void arch_write_unlock(arch_rwlock_t *lock)  in arch_write_unlock()  argument
140 	smp_store_release(&lock->lock, 0);  in arch_write_unlock()