Re: Which is simpler? (Was Re: [Suspend2-devel] Re: [ 00/10] [Suspend2] Modules support.)

[Nigel Cunningham <ncunningham@cyclades.com>]

Hi.

On Thursday 23 February 2006 09:56, Pavel Machek wrote:
> > > > 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
>
> :-).

I don't get your point. I mean, we're talking about flags that record what 
pages are going to be in the image, be atomically copied and so on. Are you 
planning on trying to export the free page information and the like to 
userspace too, along with atomic copy code?

Regards,

Nigel

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