Am Mittwoch, 26. Dezember 2007 21:17:22 schrieb Pavel Machek:
quoted text
> On Wed 2007-12-26 18:28:04, Oliver Neukum wrote:
> > Am Mittwoch, 26. Dezember 2007 00:07:31 schrieb Pavel Machek:
> > > Heute 00:07:31
> > >    
> > > This is RFC. It does not even work for me... it sleeps but it will not
> > > wake up, because SATA wakeup code is missing. Code attached for illustration.
> > > 
> > > I wonder if this is the right approach? What is right interface to the
> > > drivers?
> > 
> > IMHO you are making to many special cases. The system can be "sleepy"
> > if all devices can be runtime suspended and all CPUs are idle.
> 
> Is there an easy way to tell if all the devices are runtime suspended?

Do you really want to know whether they are suspended or whether they
could be suspended?

quoted text
> I guess I need to know from atomic context :-(.

Urgh. suspend() must be able to sleep and can fail.

	Regards
		Oliver
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