From: Nigel Cunningham <nigel@suspend2.net>
Organization: Suspend2.net
To: Pavel Machek <pavel@ucw.cz>
Subject: Re: [ 00/10] [Suspend2] Modules support.
Date: Thu, 2 Feb 2006 21:31:55 +1000
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References: <20060201113710.6320.68289.stgit@localhost.localdomain> <200602022038.16262.nigel@suspend2.net> <20060202104750.GC1884@elf.ucw.cz>
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Hi.

On Thursday 02 February 2006 20:47, Pavel Machek wrote:
> Hi!
>
> > > > This set of patches represents the core of Suspend2's module suppor=
t.
> > > >
> > > > Suspend2 uses a strong internal API to separate the method of
> > > > determining the content of the image from the method by which it is
> > > > saved. The code for determining the content is part of the core of
> > > > Suspend2, and transformations (compression and/or encryption) and
> > > > storage of the pages are handled by 'modules'.
> > >
> > > swsusp already has a very strong API to separate image writing from
> > > image creation (in -mm patch, anyway). It is also very nice, just
> > > read() from /dev/snapshot. Please use it.
> >
> > You know that's not an option.
>
> No, I don't... please explain. Switching to this interface is going to
> be easier than pushing suspend2 into kernel. Granted, end result may
> not be suspend2, it may be something like suspend3, but it will be
> better result than u-swsusp or suspend2 is today...

It's not an option because I'm not trying not to step all over your codebas=
e,=20
because I'm not moving suspend2 to userspace and because it doesn't make=20
sense to add another layer of abstraction by sticking /dev/snapshot in the=
=20
middle of kernel space code. There may be more reasons, but I haven't looke=
d=20
at the /dev/snapshot code at all.

Regards,

Nigel

=2D-=20
See our web page for Howtos, FAQs, the Wiki and mailing list info.
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