I have a setup where null_blk is not a module but is built-in, so to check
if the kernel supports null_blk, use 'modinfo -n'.
Also fix a comment.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
I've written a simple shell wrapper for null_blk configuration
(https://github.com/kdave/nullb). Make a local copy of version 0.1 to
avoid external dependency for our tests.
Signed-off-by: David Sterba <dsterba@suse.com>