On Tue, 2008-07-15 at 02:39 -0700, David Miller wrote:
quoted text
> From: Johannes Berg <johannes@sipsolutions.net>
> Date: Tue, 15 Jul 2008 11:37:01 +0200
>=20
> > From mac80211's POV it's just that select_queue must have known
> > about the removed queue when the requeue is done. And we can defer
> > the requeue to a workqueue.
>=20
> Ok.
>=20
> So you're proposing the requeue be deferred to a workqueue
> and what else?  RCU protection around real_num_tx_queues
> access?

Yes, I think we can fix it by deferring the requeue to a workqueue,
using synchronize_net() and putting RCU protection against the
select_queue call.

johannes