On Wed, Feb 13, 2008 at 11:03:45AM -0600, James Bottomley wrote:
quoted text
> > I don't understand please explain. 
> > What does a driver need to do if it needs a consistent shutdown retine?
> > module or built in? unload or shutdown?
> 
> It needs to register a reboot notifier, which gdth does.

Well, for crappy legacy driver that's the way, but it's not really
recommended.  As soon as a driver uses the proper driver models,
e.g. gdth for pci using Jeff's pci hotplug patches it can just
implement the ->shutdown method that is called before shutdown/kexec
and can do the right thing.

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