Re: [Patch net-next v3 3/3] net_sched: implement ->change_tx_queue_len() for pfifo_fast

[Jason Wang]

On 2018年01月26日 12:01, Cong Wang wrote:

Is __skb_array_empty() in pfifo_fast_dequeue() still safe after this change?

Yes, we sync with dequeue path before calling ->change_tx_queue_len().
I already mentioned this in patch 2/3.

Aha, ok, I think I get the synchronize_net() trick in dev_deactivate_many().

Thanks