271 	.vo_copy = VM_OBJECT_NULL,
272 	.shadow = VM_OBJECT_NULL,
623 	vm_object_t     shadow = VM_OBJECT_NULL;  in vm_object_deallocate()
628 	if (object == VM_OBJECT_NULL) {  in vm_object_deallocate()
659 	    object->shadow != VM_OBJECT_NULL) {  in vm_object_deallocate()
693 		    object->shadow != VM_OBJECT_NULL) {  in vm_object_deallocate()
729 	while (object != VM_OBJECT_NULL) {  in vm_object_deallocate()
775 			    object->shadow != VM_OBJECT_NULL) {  in vm_object_deallocate()
822 		shadow = object->pageout?VM_OBJECT_NULL:object->shadow;  in vm_object_deallocate()
827 		if (shadow != VM_OBJECT_NULL) {  in vm_object_deallocate()
990 	vm_object_t     object = VM_OBJECT_NULL;  in vm_object_cache_evict()
991 	vm_object_t     next_obj = VM_OBJECT_NULL;  in vm_object_cache_evict()
1046 				object = VM_OBJECT_NULL;  in vm_object_cache_evict()
1057 				object = VM_OBJECT_NULL;  in vm_object_cache_evict()
1070 				object = VM_OBJECT_NULL;  in vm_object_cache_evict()
1081 		if (object == VM_OBJECT_NULL) {  in vm_object_cache_evict()
1180 		object = VM_OBJECT_NULL;  in vm_object_cache_evict()
1285 	if (((shadow_object = object->shadow) != VM_OBJECT_NULL) &&  in vm_object_terminate()
1289 			shadow_object->vo_copy = VM_OBJECT_NULL;  in vm_object_terminate()
1332 	object = VM_OBJECT_NULL;  in vm_object_terminate()
1492 		assert(object->shadow != VM_OBJECT_NULL);  in vm_object_reap()
1524 	object->shadow = VM_OBJECT_NULL;  in vm_object_reap()
1537 	object = VM_OBJECT_NULL;  in vm_object_reap()
1844 		    object->pageout ? VM_OBJECT_NULL : object->shadow;  in vm_object_reaper_thread()
1848 		object = VM_OBJECT_NULL;  in vm_object_reaper_thread()
1850 		if (shadow_object != VM_OBJECT_NULL) {  in vm_object_reaper_thread()
1856 			shadow_object = VM_OBJECT_NULL;  in vm_object_reaper_thread()
1909 	if (object == VM_OBJECT_NULL) {  in vm_object_destroy()
2739 	if (object == VM_OBJECT_NULL) {
2933 			if (next_object != VM_OBJECT_NULL) {
3004 		*_result_object = VM_OBJECT_NULL;
3054 				*_result_object = VM_OBJECT_NULL;
3073 			    src_object->shadow == VM_OBJECT_NULL &&
3216 				*_result_object = VM_OBJECT_NULL;
3239 				*_result_object = VM_OBJECT_NULL;
3286 	if (object == VM_OBJECT_NULL) {
3357 	vm_object_t             new_copy = VM_OBJECT_NULL;
3428 	if (old_copy != VM_OBJECT_NULL) {
3509 							if (new_copy != VM_OBJECT_NULL) {
3517 							return VM_OBJECT_NULL;
3543 			if (new_copy != VM_OBJECT_NULL) {
3561 		if (new_copy == VM_OBJECT_NULL) {
3585 	} else if (new_copy == VM_OBJECT_NULL) {
3625 				return VM_OBJECT_NULL;
3638 	if (old_copy != VM_OBJECT_NULL) {
3698 	assert(src_object != VM_OBJECT_NULL);
3728 			*dst_object = VM_OBJECT_NULL;
3756 		if (*dst_object != VM_OBJECT_NULL) {
3812 	assert(source != VM_OBJECT_NULL);
3813 	if (source == VM_OBJECT_NULL) {
3859 			    (source->shadow == VM_OBJECT_NULL ||
3860 			    source->shadow->vo_copy == VM_OBJECT_NULL)) {
3887 	if ((result = vm_object_allocate(length)) == VM_OBJECT_NULL) {
4021 	if (object != VM_OBJECT_NULL) {
4029 		assert(object != VM_OBJECT_NULL);
4106 	vm_object_t             pager_object = VM_OBJECT_NULL;
4436 		backing_object->shadow = VM_OBJECT_NULL;
4442 	assert((object->shadow == VM_OBJECT_NULL) ||
4458 	assert(backing_object->shadow == VM_OBJECT_NULL);
4522 		backing_object->vo_copy = VM_OBJECT_NULL;
4627 	if (object == VM_OBJECT_NULL) {
4658 		if (backing_object == VM_OBJECT_NULL) {
4739 		if (backing_object->shadow != VM_OBJECT_NULL &&
5142 	if (next_object != VM_OBJECT_NULL) {
5146 	if (prev_object == VM_OBJECT_NULL) {
5170 	    (prev_object->shadow != VM_OBJECT_NULL) ||
5171 	    (prev_object->vo_copy != VM_OBJECT_NULL) ||
5315 	    VM_OBJECT_NULL,
5318 	if (object == VM_OBJECT_NULL) {
5323 	if (object != VM_OBJECT_NULL) {
5354 	if (object == VM_OBJECT_NULL) {
5411 	assert(object->vo_copy == VM_OBJECT_NULL);
5610 	if (object == VM_OBJECT_NULL) {
5628 	assert(object->vo_copy == VM_OBJECT_NULL);
5944 	if (object == VM_OBJECT_NULL) {
6024 	if (object == VM_OBJECT_NULL) {
6057 	tmp_object = VM_OBJECT_NULL;
6061 	    object1 == VM_OBJECT_NULL ||
6062 	    object2 == VM_OBJECT_NULL) {
6341 	if (tmp_object != VM_OBJECT_NULL) {
6349 		tmp_object = VM_OBJECT_NULL;
7252 	assert(object != VM_OBJECT_NULL);
7469 	assert(object != VM_OBJECT_NULL );
7885 	assert(object->shadow == VM_OBJECT_NULL);
8070 	assert(object->shadow == VM_OBJECT_NULL);
8071 	assert(object->vo_copy == VM_OBJECT_NULL);