147 #define arch_read_can_lock(rw)		(*(volatile int *)(rw) >= 0)  argument
148 #define arch_write_can_lock(rw)	(*(volatile int *)(rw) == 0)  argument
180 #define arch_read_lock_flags(rw, flags) arch_read_lock(rw)  argument
182 #define arch_read_lock(rw)								\  argument
184 	arch_rwlock_t *__read_lock_ptr = (rw);						\
195 #define arch_read_unlock(rw)					\  argument
197 	arch_rwlock_t *__read_lock_ptr = (rw);			\
228 #define arch_write_lock(rw) arch_write_lock_flags(rw, 0)  argument
230 #define arch_write_trylock(rw)							\  argument
238 		: "=r"(result) : "r"(rw) : "ar.ccv", "r29", "memory");		\
264 #define arch_write_trylock(rw)						\  argument
268 	ia64_val = ia64_cmpxchg4_acq((__u32 *)(rw), ia64_set_val, 0);	\