From: Cong Wang
Date: Fri, 22 Jun 2018 14:33:16 -0700
> In update_vf():
>
> cftree_remove(cl);
> update_cfmin(cl->cl_parent);
>
> the cl_cfmin of cl->cl_parent is intentionally updated to 0
> when that parent only has one child. And if this parent is
> root qdisc, we could end up, in hfsc_s
In update_vf():
cftree_remove(cl);
update_cfmin(cl->cl_parent);
the cl_cfmin of cl->cl_parent is intentionally updated to 0
when that parent only has one child. And if this parent is
root qdisc, we could end up, in hfsc_schedule_watchdog(),
that we can't decide the next schedule time for qdis
