Hi Shin'ichiro, this series updates most tests that use null_blk so that they can work with a built-in null_blk driver. The onces that require shared_tags or failure injection, which currently can only be controlled through module parameters still require a module until the kernel is updated (which I plan to look into). Changes since v1: - spelling fixes - fix the off by order of 1024 device sizing - make the modprobe -r call in _exit_null_blk quiet - explicitly load null_blk.ko in _configure_null_blk
