Am Donnerstag, 23. September 2004 17:23 schrieb Alan Stern:
> > >>I am sure the swsusp people will really appreciate the added
> > >>necessity to first compute the set of devices that need to run.
> >
> > I've always been surprised they don't do that already. �After all,
> > they have the swap device in hand; walk from there up to the root,
> > and there you go.
>
> So among all the other features, there needs to be some way to exclude
> some set of devices from a system-wide suspend.
How? If you cut power, you'll cut all power to bus powered devices.
Other devices will potentially go out of sync. This seems to me a bad
idea.
IMHO a simple model of suspend() followed by resume() is not enough.
The order of calls is constrained by the device tree. So you'll switch
off your swap partition at some point before all devices have saved
state.
Regards
Oliver
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