55 static __always_inline int arch_spin_value_unlocked(arch_spinlock_t lock)  in arch_spin_value_unlocked()  argument
57 	return lock.slock == 0;  in arch_spin_value_unlocked()
60 static inline int arch_spin_is_locked(arch_spinlock_t *lock)  in arch_spin_is_locked()  argument
63 	return !arch_spin_value_unlocked(*lock);  in arch_spin_is_locked()
70 static inline unsigned long __arch_spin_trylock(arch_spinlock_t *lock)  in __arch_spin_trylock()  argument
84 	: "r" (token), "r" (&lock->slock)  in __arch_spin_trylock()
90 static inline int arch_spin_trylock(arch_spinlock_t *lock)  in arch_spin_trylock()  argument
93 	return __arch_spin_trylock(lock) == 0;  in arch_spin_trylock()
113 extern void __spin_yield(arch_spinlock_t *lock);
114 extern void __rw_yield(arch_rwlock_t *lock);
121 static inline void arch_spin_lock(arch_spinlock_t *lock)  in arch_spin_lock()  argument
125 		if (likely(__arch_spin_trylock(lock) == 0))  in arch_spin_lock()
130 				__spin_yield(lock);  in arch_spin_lock()
131 		} while (unlikely(lock->slock != 0));  in arch_spin_lock()
137 void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)  in arch_spin_lock_flags()  argument
143 		if (likely(__arch_spin_trylock(lock) == 0))  in arch_spin_lock_flags()
150 				__spin_yield(lock);  in arch_spin_lock_flags()
151 		} while (unlikely(lock->slock != 0));  in arch_spin_lock_flags()
157 static inline void arch_spin_unlock(arch_spinlock_t *lock)  in arch_spin_unlock()  argument
162 	lock->slock = 0;  in arch_spin_unlock()
166 extern void arch_spin_unlock_wait(arch_spinlock_t *lock);
168 #define arch_spin_unlock_wait(lock) \  argument
169 	do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
183 #define arch_read_can_lock(rw)		((rw)->lock >= 0)
184 #define arch_write_can_lock(rw)	(!(rw)->lock)
212 	: "r" (&rw->lock)  in __arch_read_trylock()
236 	: "r" (token), "r" (&rw->lock)  in __arch_write_trylock()
251 		} while (unlikely(rw->lock < 0));  in arch_read_lock()
265 		} while (unlikely(rw->lock != 0));  in arch_write_lock()
293 	: "r"(&rw->lock)  in arch_read_unlock()
301 	rw->lock = 0;  in arch_write_unlock()
304 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)  argument
305 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)  argument
307 #define arch_spin_relax(lock)	__spin_yield(lock)  argument
308 #define arch_read_relax(lock)	__rw_yield(lock)  argument
309 #define arch_write_relax(lock)	__rw_yield(lock)  argument