on_dl_rq
if (!dl_task(donor) || !on_dl_rq(dl_se))
WARN_ON_ONCE(on_dl_rq(dl_se));
if (!on_dl_rq(&p->dl) && need_pull_dl_task(rq, p)) {
if (on_dl_rq(&p->dl))
if (on_dl_rq(&p->dl))
if (on_dl_rq(&p->dl) && p->nr_cpus_allowed > 1)