25 static inline void __down_read(struct rw_semaphore *sem)  in __down_read()  argument
27 	if (atomic_inc_return((atomic_t *)(&sem->count)) > 0)  in __down_read()
30 		rwsem_down_read_failed(sem);  in __down_read()
33 static inline int __down_read_trylock(struct rw_semaphore *sem)  in __down_read_trylock()  argument
37 	while ((tmp = sem->count) >= 0) {  in __down_read_trylock()
38 		if (tmp == cmpxchg(&sem->count, tmp,  in __down_read_trylock()
50 static inline void __down_write(struct rw_semaphore *sem)  in __down_write()  argument
55 				(atomic_t *)(&sem->count));  in __down_write()
59 		rwsem_down_write_failed(sem);  in __down_write()
62 static inline int __down_write_trylock(struct rw_semaphore *sem)  in __down_write_trylock()  argument
66 	tmp = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE,  in __down_write_trylock()
75 static inline void __up_read(struct rw_semaphore *sem)  in __up_read()  argument
80 	tmp = atomic_dec_return((atomic_t *)(&sem->count));  in __up_read()
82 		rwsem_wake(sem);  in __up_read()
88 static inline void __up_write(struct rw_semaphore *sem)  in __up_write()  argument
92 			      (atomic_t *)(&sem->count)) < 0)  in __up_write()
93 		rwsem_wake(sem);  in __up_write()
99 static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)  in rwsem_atomic_add()  argument
101 	atomic_add(delta, (atomic_t *)(&sem->count));  in rwsem_atomic_add()
107 static inline void __downgrade_write(struct rw_semaphore *sem)  in __downgrade_write()  argument
112 	tmp = atomic_add_return(-RWSEM_WAITING_BIAS, (atomic_t *)(&sem->count));  in __downgrade_write()
114 		rwsem_downgrade_wake(sem);  in __downgrade_write()
117 static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)  in __down_write_nested()  argument
119 	__down_write(sem);  in __down_write_nested()
125 static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)  in rwsem_atomic_update()  argument
128 	return atomic_add_return(delta, (atomic_t *)(&sem->count));  in rwsem_atomic_update()