57 static __always_inline int arch_spin_value_unlocked(arch_spinlock_t lock)  in arch_spin_value_unlocked()  argument
59 	return lock.slock == 0;  in arch_spin_value_unlocked()
62 static inline int arch_spin_is_locked(arch_spinlock_t *lock)  in arch_spin_is_locked()  argument
65 	return !arch_spin_value_unlocked(*lock);  in arch_spin_is_locked()
72 static inline unsigned long __arch_spin_trylock(arch_spinlock_t *lock)  in __arch_spin_trylock()  argument
86 	: "r" (token), "r" (&lock->slock)  in __arch_spin_trylock()
92 static inline int arch_spin_trylock(arch_spinlock_t *lock)  in arch_spin_trylock()  argument
95 	return __arch_spin_trylock(lock) == 0;  in arch_spin_trylock()
115 extern void __spin_yield(arch_spinlock_t *lock);
116 extern void __rw_yield(arch_rwlock_t *lock);
123 static inline void arch_spin_lock(arch_spinlock_t *lock)  in arch_spin_lock()  argument
127 		if (likely(__arch_spin_trylock(lock) == 0))  in arch_spin_lock()
132 				__spin_yield(lock);  in arch_spin_lock()
133 		} while (unlikely(lock->slock != 0));  in arch_spin_lock()
139 void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)  in arch_spin_lock_flags()  argument
145 		if (likely(__arch_spin_trylock(lock) == 0))  in arch_spin_lock_flags()
152 				__spin_yield(lock);  in arch_spin_lock_flags()
153 		} while (unlikely(lock->slock != 0));  in arch_spin_lock_flags()
159 static inline void arch_spin_unlock(arch_spinlock_t *lock)  in arch_spin_unlock()  argument
164 	lock->slock = 0;  in arch_spin_unlock()
168 extern void arch_spin_unlock_wait(arch_spinlock_t *lock);
170 #define arch_spin_unlock_wait(lock) \  argument
171 	do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
185 #define arch_read_can_lock(rw)		((rw)->lock >= 0)
186 #define arch_write_can_lock(rw)	(!(rw)->lock)
214 	: "r" (&rw->lock)  in __arch_read_trylock()
238 	: "r" (token), "r" (&rw->lock)  in __arch_write_trylock()
253 		} while (unlikely(rw->lock < 0));  in arch_read_lock()
267 		} while (unlikely(rw->lock != 0));  in arch_write_lock()
295 	: "r"(&rw->lock)  in arch_read_unlock()
303 	rw->lock = 0;  in arch_write_unlock()
306 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)  argument
307 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)  argument
309 #define arch_spin_relax(lock)	__spin_yield(lock)  argument
310 #define arch_read_relax(lock)	__rw_yield(lock)  argument
311 #define arch_write_relax(lock)	__rw_yield(lock)  argument