178 static inline long __arch_read_trylock(arch_rwlock_t *rw)  in __arch_read_trylock()  argument
192 	: "r" (&rw->lock), [eh] "n" (eh)  in __arch_read_trylock()
202 static inline long __arch_write_trylock(arch_rwlock_t *rw)  in __arch_write_trylock()  argument
216 	: "r" (token), "r" (&rw->lock), [eh] "n" (eh)  in __arch_write_trylock()
222 static inline void arch_read_lock(arch_rwlock_t *rw)  in arch_read_lock()  argument
225 		if (likely(__arch_read_trylock(rw) > 0))  in arch_read_lock()
230 				splpar_rw_yield(rw);  in arch_read_lock()
231 		} while (unlikely(rw->lock < 0));  in arch_read_lock()
236 static inline void arch_write_lock(arch_rwlock_t *rw)  in arch_write_lock()  argument
239 		if (likely(__arch_write_trylock(rw) == 0))  in arch_write_lock()
244 				splpar_rw_yield(rw);  in arch_write_lock()
245 		} while (unlikely(rw->lock != 0));  in arch_write_lock()
250 static inline int arch_read_trylock(arch_rwlock_t *rw)  in arch_read_trylock()  argument
252 	return __arch_read_trylock(rw) > 0;  in arch_read_trylock()
255 static inline int arch_write_trylock(arch_rwlock_t *rw)  in arch_write_trylock()  argument
257 	return __arch_write_trylock(rw) == 0;  in arch_write_trylock()
260 static inline void arch_read_unlock(arch_rwlock_t *rw)  in arch_read_unlock()  argument
272 	: "r"(&rw->lock)  in arch_read_unlock()
276 static inline void arch_write_unlock(arch_rwlock_t *rw)  in arch_write_unlock()  argument
280 	rw->lock = 0;  in arch_write_unlock()