swsusp on nommu, was 'Re: No more bits in vm_area_struct's vm_flags.'

From: Johannes Weiner
Date: Wed Sep 30 2009 - 09:09:34 EST


On Wed, Sep 30, 2009 at 02:02:03PM +0200, Pavel Machek wrote:
> Hi!
>
> > > Does TuxOnIce rely on CONFIG_MMU? If so, then the TuxOnIce patch
> > > could presumably reuse VM_MAPPED_COPY for now - but don't be
> > > surprised if that's one we clean away later on.
> >
> > Hmm. I'm not sure. The requirements are the same as for swsusp and
> > uswsusp. Is there some tool to graph config dependencies?
>
> I don't think swsusp was ported on any -nommu architecture, so config
> dependency on MMU should be ok. OTOH such port should be doable...

I am sitting on some dusty patches to split swapfile handling from
actual paging and implement swsusp on blackfin. They are incomplete
and I only occasionally find the time to continue working on them. If
somebody is interested or also working on it, please let me know.

Hannes
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