45  *     _busy: Lock was busy
138  *   L_P - Lock predicate, returns false if resource is available.
145 	ck_elide_##N##_lock_adaptive(T *lock,						\
161 				if (L_P(lock) == true)					\
173 					if (L_P(lock) == false)				\
187 		L(lock);								\
191 	ck_elide_##N##_unlock_adaptive(struct ck_elide_stat *st, T *lock)		\
194 		if (U_P(lock) == false) {						\
199 			U(lock);							\
205 	ck_elide_##N##_lock(T *lock)							\
209 			L(lock);							\
213 		if (L_P(lock) == true)							\
219 	ck_elide_##N##_unlock(T *lock)							\
222 		if (U_P(lock) == false) {						\
225 			U(lock);							\
233 	ck_elide_##N##_trylock(T *lock)					\
239 		if (TL_P(lock) == true)					\
247  * elision wrappers directly calls into the user-specified lock operations.
249  * are paid (typically a storage cost that is a function of lock objects and
254 	ck_elide_##N##_lock_adaptive(T *lock,				\
261 		L(lock);						\
266 	    T *lock)							\
270 		U(lock);						\
274 	ck_elide_##N##_lock(T *lock)					\
277 		L(lock);						\
281 	ck_elide_##N##_unlock(T *lock)					\
284 		U(lock);						\
290 	ck_elide_##N##_trylock(T *lock)					\
293 		return TL_P(lock);					\
298  * Best-effort elision lock operations. First argument is name (N)
306 #define CK_ELIDE_LOCK(NAME, LOCK)	ck_elide_##NAME##_lock(LOCK)  argument
307 #define CK_ELIDE_UNLOCK(NAME, LOCK)	ck_elide_##NAME##_unlock(LOCK)  argument
308 #define CK_ELIDE_TRYLOCK(NAME, LOCK)	ck_elide_##NAME##_trylock(LOCK)  argument
311  * Adaptive elision lock operations. In addition to name and pointer
312  * to the lock, you must pass in a pointer to an initialized
315 #define CK_ELIDE_LOCK_ADAPTIVE(NAME, STAT, CONFIG, LOCK) \  argument
316 	ck_elide_##NAME##_lock_adaptive(LOCK, STAT, CONFIG)
318 #define CK_ELIDE_UNLOCK_ADAPTIVE(NAME, STAT, LOCK) \  argument
319 	ck_elide_##NAME##_unlock_adaptive(STAT, LOCK)