Re: SOFTWARE_SUSPEND as a module

[Pavel Machek]

Hi!

> > >As a side-effect it also allows you to resume from devices that couldn't
> > >be done before due to the need for user-space setup.  Examples are LVM
> > >and NBD.
> > 
> > LVM can be compiled in, can't it? Does it need to do some setup from an  
> > initrd?
> 
> It needs to be recognised by the lvm userspace utilities before it can
> be used.
> 
> One other thing this might be very useful for is _swsusp from encrypted
> swap'. With dm-crypt, it should be very easy to create a crypto mapping
> from initrd from which swsusp can resume. IMHO this is a killer feature
> for notebook users (everything encrypted but the boot partition).

Okay. Best way is probably to introduce reboot() variant that
says "resume from this".
				Pavel

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