313     zfs_locked_range_t *prev, avl_index_t where)  in zfs_rangelock_add_reader()  argument
326 	if (prev != NULL) {  in zfs_rangelock_add_reader()
327 		if (prev->lr_offset + prev->lr_length <= off) {  in zfs_rangelock_add_reader()
328 			prev = NULL;  in zfs_rangelock_add_reader()
329 		} else if (prev->lr_offset != off) {  in zfs_rangelock_add_reader()
334 			prev = zfs_rangelock_split(tree, prev, off);  in zfs_rangelock_add_reader()
335 			prev = AVL_NEXT(tree, prev); /* move to rear range */  in zfs_rangelock_add_reader()
338 	ASSERT((prev == NULL) || (prev->lr_offset == off));  in zfs_rangelock_add_reader()
340 	if (prev != NULL)  in zfs_rangelock_add_reader()
341 		next = prev;  in zfs_rangelock_add_reader()
363 	for (prev = NULL; next; prev = next, next = AVL_NEXT(tree, next)) {  in zfs_rangelock_add_reader()
366 		if (prev != NULL && prev->lr_offset + prev->lr_length <  in zfs_rangelock_add_reader()
370 			    prev->lr_offset + prev->lr_length);  in zfs_rangelock_add_reader()
372 			    prev->lr_offset + prev->lr_length,  in zfs_rangelock_add_reader()
374 			    (prev->lr_offset + prev->lr_length));  in zfs_rangelock_add_reader()
394 	zfs_rangelock_new_proxy(tree, prev->lr_offset + prev->lr_length,  in zfs_rangelock_add_reader()
395 	    (off + len) - (prev->lr_offset + prev->lr_length));  in zfs_rangelock_add_reader()
407 	zfs_locked_range_t *prev, *next;  in zfs_rangelock_enter_reader()  local
416 	prev = avl_find(tree, new, &where);  in zfs_rangelock_enter_reader()
417 	if (prev == NULL)  in zfs_rangelock_enter_reader()
418 		prev = avl_nearest(tree, where, AVL_BEFORE);  in zfs_rangelock_enter_reader()
423 	if (prev && (off < prev->lr_offset + prev->lr_length)) {  in zfs_rangelock_enter_reader()
424 		if ((prev->lr_type == RL_WRITER) || (prev->lr_write_wanted)) {  in zfs_rangelock_enter_reader()
427 			if (!prev->lr_read_wanted) {  in zfs_rangelock_enter_reader()
428 				cv_init(&prev->lr_read_cv,  in zfs_rangelock_enter_reader()
430 				prev->lr_read_wanted = B_TRUE;  in zfs_rangelock_enter_reader()
432 			cv_wait(&prev->lr_read_cv, &rl->rl_lock);  in zfs_rangelock_enter_reader()
435 		if (off + len < prev->lr_offset + prev->lr_length)  in zfs_rangelock_enter_reader()
443 	if (prev != NULL)  in zfs_rangelock_enter_reader()
444 		next = AVL_NEXT(tree, prev);  in zfs_rangelock_enter_reader()
470 	zfs_rangelock_add_reader(tree, new, prev, where);  in zfs_rangelock_enter_reader()