vruntime_cmp
return vruntime_cmp(se->vruntime, "<", se->vprot);
if (vruntime_cmp(se->vruntime, "<", se->deadline))
if (vruntime_cmp(vruntime, ">", max_vruntime))
if (vruntime_cmp(vruntime, "<", min_vruntime))
return vruntime_cmp(a->deadline, "<", b->deadline);
if (vruntime_cmp(se->min_vruntime, ">", rse->min_vruntime))