On 02/19, Jarek Poplawski wrote:
>
> On Mon, Feb 19, 2007 at 12:43:59AM +0300, Oleg Nesterov wrote:
> > Afaics, noautorel work_struct buys nothing for "struct net_bridge_port".
> >
> > If del_nbp()->cancel_delayed_work(&p->carrier_check) fails,
> > port_carrier_check
> > may be called later anyway. So the reading of *work in port_carrier_check()
> > is
> > equally unsafe with or without this patch.
>
> I think this _WORK_NAR is to give some additional
> control, but also is more logical: it lets to decide
> when the work_struct is really release-able
Sadly, it doesn't help here.
(and it's
> definitely not before work function is called, as
> without noautorel).
kfree() doesn't check WORK_STRUCT_PENDING, it makes no
difference if it is set or not when work->func() runs.
> So, even if this functionality isn't used now, I can't
> see what changing this could buy.
We are going to kill _NAR stuff.
Oleg.
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