On Wednesday 19 September 2012 13:27:47 James Bottomley wrote:
> On Wed, 2012-09-19 at 16:03 +0800, Aaron Lu wrote:
> > Hi James,
> >
> > May I know if this patchset will enter v3.7?
>
> Sigh, well, I was hoping to persuade the PM people to sort this out
> first.
>
> The first observation is that all this looks to be too specific. ZPO
> may be ACPI specific, but the property it abstracts: whether the
> particular device is powered off or not is generic and probably should
> be known at the generic PM level. Nothing actually really cares about
> how we power off the device until you get all the way down to the ACPI
> controller.
The SCSI layer however needs to know whether the cache is handled
by the OS or in the device and under which circumstances a device
can detect media change events.
Regards
Oliver
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