Hello,
On Thu, Feb 20, 2014 at 08:44:46PM -0500, Peter Hurley wrote:
> >+static void fw_device_workfn(struct work_struct *work)
> >+{
> >+ struct fw_device *device = container_of(to_delayed_work(work),
> >+ struct fw_device, work);
>
> I think this needs an smp_rmb() here.
The patch is equivalent transformation and the whole thing is
guaranteed to have gone through pool->lock. No explicit rmb
necessary.
> IOW, the beginning of the work function should act like a barrier in
> the same way that queue_work_on() (et. al.) already does.
workqueue already has enough barriers; otherwise, the whole kernel
would have crumbled long time ago.
Thanks.
--
tejun
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