Function rdev_chain

src/commonlib/region.c:137–156

}

int rdev_chain(struct region_device *child, const struct region_device *parent,
		size_t offset, size_t size)
{
	struct region req = {
		.offset = offset,
		.size = size,
	};

	if (!normalize_and_ok(&parent->region, &req))
		return -1;

	/* Keep track of root region device. Note the offsets are relative
	 * to the root device. */
	child->root = rdev_root(parent);
	child->ops = NULL;
	child->region.offset = req.offset;
	child->region.size = req.size;

	return 0;
}

static void mem_region_device_init(struct mem_region_device *mdev,
		const struct region_device_ops *ops, void *base, size_t size)