pd_to_blkg
blkg_rwstat_recursive_sum(pd_to_blkg(pd), &blkcg_policy_bfq, off, &sum);
struct blkcg_gq *blkg = pd_to_blkg(pd);
return pd_to_blkg(&bfqg->pd);
struct blkcg_gq *blkg = pd_to_blkg(pd);
struct blkcg_gq *blkg = pd_to_blkg(&iocg->pd);
return pd_to_blkg(&iocg->pd);
return pd_to_blkg(&iolat->pd);
blkg_rwstat_recursive_sum(pd_to_blkg(pd), &blkcg_policy_throtl, off,
return pd_to_blkg(&tg->pd);