MIN_RQT_SHIFT
rdev->stats.rqt.cur += roundup(size << 6, 1 << MIN_RQT_SHIFT);
rdev->stats.rqt.cur -= roundup(size << 6, 1 << MIN_RQT_SHIFT);
rdev->rqt_pool = gen_pool_create(MIN_RQT_SHIFT, -1);
if (rqt_chunk <= 1024 << MIN_RQT_SHIFT) {