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

[Pavel Machek]

Hi!

> > > Any changes to userspace are a fair game. OTOH kernel provides linear
> > > image to be saved to userspace, and what it uses internally should not
> > > be important to userland parts. (And Rafael did some changes in that
> > > area to make it more effective, IIRC).
> >
> > Yes.  The code is now split into the part that handles the snapshot image
> > (in snapshot.c) and the part that writes/reads it to swap (in swap.c). [I'm
> > referring to recent -mm kernels.]
> >
> > The access to the snapshot image is provided via the functions
> > snapshot_write_next() and snapshot_read_next() that are called by the
> > code in swap.c and may be used by the user space tools via the
> > interface in user.c.  In principle it ought to be possible to plug
> > something else instead of the code in snapshot.c without
> > breaking the rest.
> 
> So, what is the answer then? If I submitted patches to provide the possibility 
> of separating LRU pages into a separate stream of pages to be read/written, 
> would it have any chance of getting merged? (Along with other patches to make 
> writing a full image of memory possible).

Could we do the other stuff, first, please? Userland
LZF/encryption/progress should be easy to do, and doing that should
teach us how to cooperate.
									Pavel
-- 
Web maintainer for suspend.sf.net (www.sf.net/projects/suspend) wanted...
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/