Re: [PATCH net-next] net: sch_generic: aviod concurrent reset and enqueue op for lockless qdisc

[Eric Dumazet]

On 9/2/20 6:14 PM, Yunsheng Lin wrote:

> 
> It seems semantics for some_qdisc_is_busy() is changed, which does not only do
> the checking, but also do the reseting?

Yes, obviously, we would have to rename to a better name.

> 
> Also, qdisc_reset() could be called multi times for the same qdisc if 
> some_qdisc_is_busy()
> return true multi times?

This should not matter, qdisc_reset() can be called multiple times,
as we also call it from qdisc_destroy() anyway.