On Tue, 2017-04-04 at 18:52 -0700, Cong Wang wrote:
> diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
> index 1a2f9e9..4725d2f 100644
> --- a/net/sched/sch_generic.c
> +++ b/net/sched/sch_generic.c
> @@ -925,7 +925,7 @@ void dev_deactivate_many(struct list_head *head)
> /* Wait for outstanding qdisc_run calls. */
> list_for_each_entry(dev, head, close_list)
> while (some_qdisc_is_busy(dev))
> - yield();
> + cond_resched();
> }
That won't help, cond_resched() has the same impact upon a lone
SCHED_FIFO task as yield() does.. none.
-Mike
