# SPDX-License-Identifier: GPL-2.0## Rust null block device driver configuration config BLK_DEV_RUST_NULL	tristate "Rust null block driver (Experimental)"	depends on RUST && CONFIGFS_FS	help	  This is the Rust implementation of the null block driver. Like	  the C version, the driver allows the user to create virutal block	  devices that can be configured via various configuration options. 	  If unsure, say N.