Re: [update 2] Re: [RFC][PATCH] PM: Avoid losing wakeup eventsduring suspend

[Florian Mickler]

On Thu, 24 Jun 2010 13:09:27 -0400 (EDT)
Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:

> > > This requires you to define an explicit PCI_WAKEUP_COOLDOWN delay.  I 
> > > think that's okay; I had to do something similar with USB and SCSI.  
> > > (And I still think it would be a good idea to prevent workqueue threads 
> > > from freezing until their queues are empty.)

I'm not that familiar with the freezer, but couldn't it be
deadlocky if the work depends on some already frozen part?

What about a new work-type that calls
pm_relax() after executing it's workfunction and executing
pm_stay_awake() on enqueue?


Cheers,
Flo
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