224 	vm_object_t     backing_object);
228 	vm_object_t     backing_object);
4438     vm_object_t backing_object);
4442 	vm_object_t backing_object)  argument
4450 	vm_object_lock_assert_exclusive(backing_object);
4466 		    backing_object->paging_offset);
4468 			backing_object->pager,
4475 		    backing_object->paging_offset);
4509 			backing_object->pager,
4510 			(backing_offset + backing_object->paging_offset));
4528 	vm_object_t backing_object)  argument
4535 	vm_object_lock_assert_exclusive(backing_object);
4538 	assert(backing_object->purgable == VM_PURGABLE_DENY);
4550 	while (!vm_page_queue_empty(&backing_object->memq)) {
4551 		p = (vm_page_t) vm_page_queue_first(&backing_object->memq);
4603 	    backing_object->pager != MEMORY_OBJECT_NULL) {
4605 		vm_object_do_collapse_compressor(object, backing_object);
4606 	} else if (backing_object->pager != MEMORY_OBJECT_NULL) {
4609 		    (!backing_object->pager_created &&
4610 		    (backing_object->pager == MEMORY_OBJECT_NULL)));
4623 		object->pager = backing_object->pager;
4625 		VM_OBJECT_SET_PAGER_CREATED(object, backing_object->pager_created);
4626 		object->pager_control = backing_object->pager_control;
4627 		VM_OBJECT_SET_PAGER_READY(object, backing_object->pager_ready);
4628 		VM_OBJECT_SET_PAGER_INITIALIZED(object, backing_object->pager_initialized);
4630 		    backing_object->paging_offset + backing_offset;
4636 		VM_OBJECT_SET_PAGER_CREATED(backing_object, FALSE);
4637 		backing_object->pager_control = NULL;
4638 		VM_OBJECT_SET_PAGER_READY(backing_object, FALSE);
4639 		backing_object->paging_offset = 0;
4640 		backing_object->pager = NULL;
4649 	assert(!backing_object->phys_contiguous);
4650 	object->shadow = backing_object->shadow;
4655 		assertf(page_aligned(backing_object->vo_shadow_offset),
4657 		    backing_object, backing_object->vo_shadow_offset);
4658 		object->vo_shadow_offset += backing_object->vo_shadow_offset;
4660 		backing_object->shadow = VM_OBJECT_NULL;
4661 		backing_object->vo_shadow_offset = 0;
4667 	    (object->shadow->vo_copy != backing_object));
4678 	assert(os_ref_get_count_raw(&backing_object->ref_count) == 1);
4679 	assert(backing_object->resident_page_count == 0);
4680 	assert(backing_object->paging_in_progress == 0);
4681 	assert(backing_object->activity_in_progress == 0);
4682 	assert(backing_object->shadow == VM_OBJECT_NULL);
4683 	assert(backing_object->vo_shadow_offset == 0);
4685 	if (backing_object->pager != MEMORY_OBJECT_NULL) {
4688 		if (vm_object_terminate(backing_object) != KERN_SUCCESS) {
4694 	assert(backing_object->pager == NULL);
4696 	VM_OBJECT_SET_ALIVE(backing_object, FALSE);
4697 	vm_object_unlock(backing_object);
4701 		btlog_erase(vm_object_tracking_btlog, backing_object);
4705 	vm_object_lock_destroy(backing_object);
4707 	zfree(vm_object_zone, backing_object);
4713 	vm_object_t backing_object)  argument
4721 	vm_object_lock_assert_exclusive(backing_object);
4723 	vm_object_reference(backing_object->shadow);
4726 	assert(!backing_object->phys_contiguous);
4727 	object->shadow = backing_object->shadow;
4732 		assertf(page_aligned(backing_object->vo_shadow_offset),
4734 		    backing_object, backing_object->vo_shadow_offset);
4735 		object->vo_shadow_offset += backing_object->vo_shadow_offset;
4745 	if (backing_object->vo_copy == object) {
4746 		VM_OBJECT_COPY_SET(backing_object, VM_OBJECT_NULL);
4773 	if (os_ref_get_count_raw(&backing_object->ref_count) > 2 ||
4774 	    (!backing_object->named &&
4775 	    os_ref_get_count_raw(&backing_object->ref_count) > 1)) {
4776 		vm_object_lock_assert_exclusive(backing_object);
4777 		os_ref_release_live_locked_raw(&backing_object->ref_count,
4779 		vm_object_unlock(backing_object);
4799 		vm_object_unlock(backing_object);
4800 		vm_object_deallocate(backing_object);
4838 	vm_object_t                             backing_object;  local
4883 		backing_object = object->shadow;
4884 		if (backing_object == VM_OBJECT_NULL) {
4891 			vm_object_lock_shared(backing_object);
4893 			vm_object_lock(backing_object);
4906 			object = backing_object;
4920 		if (!backing_object->internal ||
4921 		    backing_object->paging_in_progress != 0 ||
4922 		    backing_object->activity_in_progress != 0) {
4927 			object = backing_object;
4941 		    backing_object->purgable != VM_PURGABLE_DENY) {
4945 			    backing_object, backing_object->purgable);
4950 			object = backing_object;
4965 		if (backing_object->shadow != VM_OBJECT_NULL &&
4966 		    backing_object->shadow->vo_copy == backing_object) {
4971 			object = backing_object;
4989 		if (os_ref_get_count_raw(&backing_object->ref_count) == 1 &&
4992 		    || (!backing_object->pager_created)
5011 				vm_object_unlock(backing_object);
5026 			vm_object_do_collapse(object, backing_object);
5041 			object = backing_object;
5065 			if (backing_object->pager_created) {
5070 				object = backing_object;
5085 				object = backing_object;
5091 			backing_vcount = backing_object->vo_size >> PAGE_SHIFT;
5092 			backing_rcount = (vm_object_size_t)backing_object->resident_page_count;
5106 				object = backing_object;
5140 			if (EXISTS_IN_OBJECT(backing_object, hint_offset +
5149 				object = backing_object;
5172 				backing_rcount = backing_object->resident_page_count;
5173 				p = (vm_page_t)vm_page_queue_first(&backing_object->memq);
5192 					object = backing_object;
5208 					if (EXISTS_IN_OBJECT(backing_object, offset +
5221 					object = backing_object;
5232 			vm_object_unlock(backing_object);
5250 		vm_object_do_bypass(object, backing_object);