o Currently code does not seem to be using cfqd->nr_groups. Get rid of it.
Signed-off-by: NVivek Goyal <vgoyal@redhat.com>
Reviewed-by: NGui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>