selftests: ublk: add integrity params test
Add test case null_04 to exercise all the different integrity params. It
creates 4 different ublk devices with different combinations of
integrity arguments and verifies their integrity limits via sysfs and
the metadata_size utility.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
authored by