41 __down_read (struct rw_semaphore *sem)  in __down_read()  argument
43 	long result = ia64_fetchadd8_acq((unsigned long *)&sem->count, 1);  in __down_read()
46 		rwsem_down_read_failed(sem);  in __down_read()
53 __down_write (struct rw_semaphore *sem)  in __down_write()  argument
58 		old = sem->count;  in __down_write()
60 	} while (cmpxchg_acq(&sem->count, old, new) != old);  in __down_write()
63 		rwsem_down_write_failed(sem);  in __down_write()
70 __up_read (struct rw_semaphore *sem)  in __up_read()  argument
72 	long result = ia64_fetchadd8_rel((unsigned long *)&sem->count, -1);  in __up_read()
75 		rwsem_wake(sem);  in __up_read()
82 __up_write (struct rw_semaphore *sem)  in __up_write()  argument
87 		old = sem->count;  in __up_write()
89 	} while (cmpxchg_rel(&sem->count, old, new) != old);  in __up_write()
92 		rwsem_wake(sem);  in __up_write()
99 __down_read_trylock (struct rw_semaphore *sem)  in __down_read_trylock()  argument
102 	while ((tmp = sem->count) >= 0) {  in __down_read_trylock()
103 		if (tmp == cmpxchg_acq(&sem->count, tmp, tmp+1)) {  in __down_read_trylock()
114 __down_write_trylock (struct rw_semaphore *sem)  in __down_write_trylock()  argument
116 	long tmp = cmpxchg_acq(&sem->count, RWSEM_UNLOCKED_VALUE,  in __down_write_trylock()
125 __downgrade_write (struct rw_semaphore *sem)  in __downgrade_write()  argument
130 		old = sem->count;  in __downgrade_write()
132 	} while (cmpxchg_rel(&sem->count, old, new) != old);  in __downgrade_write()
135 		rwsem_downgrade_wake(sem);  in __downgrade_write()
142 #define rwsem_atomic_add(delta, sem)	atomic64_add(delta, (atomic64_t *)(&(sem)->count))  argument
143 #define rwsem_atomic_update(delta, sem)	atomic64_add_return(delta, (atomic64_t *)(&(sem)->count))  argument