static u8 rbd_object_map_get(struct rbd_device *rbd_dev, u64 objno)
{
	u8 state;

	spin_lock(&rbd_dev->object_map_lock);
	state = __rbd_object_map_get(rbd_dev, objno);
	spin_unlock(&rbd_dev->object_map_lock);
	return state;
}
static u8 rbd_object_map_get(struct rbd_device *rbd_dev, u64 objno)
{
	u8 state;

	spin_lock(&rbd_dev->object_map_lock);
	state = __rbd_object_map_get(rbd_dev, objno);
	spin_unlock(&rbd_dev->object_map_lock);
	return state;
}