Function vm_map_entry_unwire

freebsd/vm/vm_map.c:3820–3836

* vm_map_entry_unwire: [ internal use only ] * * Make the region specified by this entry pageable. * * The map in question should be locked. * [This is the reason for this routine's existence.] */

 *	[This is the reason for this routine's existence.]
 */
static void
vm_map_entry_unwire(vm_map_t map, vm_map_entry_t entry)
{
	vm_size_t size;

	VM_MAP_ASSERT_LOCKED(map);
	KASSERT(entry->wired_count > 0,
	    ("vm_map_entry_unwire: entry %p isn't wired", entry));

	size = entry->end - entry->start;
	if ((entry->eflags & MAP_ENTRY_USER_WIRED) != 0)
		vm_map_wire_user_count_sub(atop(size));
	pmap_unwire(map->pmap, entry->start, entry->end);
	vm_object_unwire(entry->object.vm_object, entry->offset, size,
	    PQ_ACTIVE);
	entry->wired_count = 0;
}

static void
vm_map_entry_deallocate(vm_map_entry_t entry, boolean_t system_map)