osfmk/vm/vm_user.c

2789 	vm_named_entry_t	named_entry;
2793 	named_entry = (vm_named_entry_t)port->ip_kobject;
2795 	named_entry_lock(named_entry);
2796 	named_entry->ref_count -= 1;
2798 	if(named_entry->ref_count == 0) {
2799 		if (named_entry->is_sub_map) {
2800 			vm_map_deallocate(named_entry->backing.map);
2801 		} else if (!named_entry->is_pager) {
2803 			vm_object_deallocate(named_entry->backing.object);
2806 		named_entry_unlock(named_entry);
2807 		named_entry_lock_destroy(named_entry);
2812 		named_entry_unlock(named_entry);
3199 	vm_named_entry_t	named_entry,
3209 	vm_named_entry_t	named_entry,
3234 		if(offset >= named_entry->size)
3236 		*upl_size = (upl_size_t) (named_entry->size - offset);
3237 		if (*upl_size != named_entry->size - offset)
3241 		if((named_entry->protection & VM_PROT_READ)
3246 		if((named_entry->protection &
3252 	if(named_entry->size < (offset + *upl_size))
3257 	offset = offset + named_entry->offset;
3259 	if(named_entry->is_sub_map)
3262 	named_entry_lock(named_entry);
3264 	if (named_entry->is_pager) {
3265 		object = vm_object_enter(named_entry->backing.pager,
3266 				named_entry->offset + named_entry->size,
3267 				named_entry->internal,
3271 			named_entry_unlock(named_entry);
3280 		named_entry->backing.object = object;
3281 		named_entry->is_pager = FALSE;
3282 		named_entry_unlock(named_entry);
3285 		if (!named_entry->internal) {
3302 		object = named_entry->backing.object;
3304 		named_entry_unlock(named_entry);