Hi!
> > > > It is doable - I'm doing it now, but am thinking about reverting part of the
> > > > code to use pbes again. If you're going to look at using bitmaps in place of
> > > > pbes, me changing would be a waste of time. Do you want me to hold off for a
> > > > while? (I'll happily do that, as I have far more than enough to keep me
> > > > occupied at the moment anyway).
> > >
> > > Well, I'd say so. :-)
> > >
> > > Frankly, I didn't think of dropping PBEs right now, but in the long run
> > > that's worth considering, IMO. The advantage of PBEs is that they are easy to
> > > handle in the assembly parts, but apart from this they are a bit wasteful
> > > (not very much, though).
> >
> > Of course it will depend on what patch looks like, but changing
> > assembly parts is hard -- you have to change all the architectures,
> > and better not make any mistake.
>
> Yes, that would be a lot of work, so it's rather a long term
> "vision".
Ok, I have no problems with visions.
> I think we should try to get the pagecache stuff right first anyway.
Are you sure it is worth doing? I mean... it only helps on small
machines, no?
OTOH having it for benchmarks will be nice, and perhaps we could use
that kind it to speed up boot and similar things...
> > > The fact that we use page flags to store some suspend/resume-related
> > > information is a big disadvantage in my view, and I'd like to get rid of that
> > > in the future. In principle we could use a bitmap, or rather two of them,
> > > to store the same information independently of the page flags, and
> > > if we use bitmaps for this purpose, we can use them also instead of
> > > PBEs.
> >
> > Well, we "only" use 2 bits... :-).
>
> In my view the problem is this adds constraints that other people have to take
> into account. Not a good thing if avoidable IMHO.
Well, I hope that swsusp development will move to userland in future
:-).
Pavel
--
Web maintainer for suspend.sf.net (www.sf.net/projects/suspend) wanted...
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