On (14/07/07 10:28), Nick Piggin didst pronounce:
> On Fri, Jul 13, 2007 at 04:56:10PM +0100, Mel Gorman wrote:
> > On (12/07/07 22:32), Mel Gorman didst pronounce:
> >
> > > > Should we at least go for
> > > >
> > > > add-__gfp_movable-for-callers-to-flag-allocations-from-high-memory-that-may-be-migrated.patch
> > > > create-the-zone_movable-zone.patch
> > > > allow-huge-page-allocations-to-use-gfp_high_movable.patch
> > > > handle-kernelcore=-generic.patch
> > > >
> > > > in 2.6.23?
> > >
> > > Well, yes please from me obviously :) . There is one additional patch
> > > I would like to send on tomorrow and that is providing the movablecore=
> >
> > This is the patch. It has been boot-tested on a number of machines and
> > behaves as expected. Nick, with this in addition, do you have any
> > objection to the ZONE_MOVABLE patches going through to 2.6.23?
>
> What's the status of making it configurable? I didn't see something
> in -mm for that yet?
>
I have a patch that makes it configurable but Kamezawa-san posted a very
promising patch about making all zones configurable in a very clever way
which is more general than what I did. He posted it as an RFC[1] and there
was feedback from Andy Whitcroft on how it could be made better so it wouldn't
have been picked up for -mm but something is in the pipeline.
I've tested his patch for zone movable and it worked as advertised so I
intended to see post-merge window what else could be done with it clean-up
wise. I am curious to see if it can also make ZONE_NORMAL configurable on
machines that only have ZONE_DMA for example.
> But that's not as important as ensuring the concept and user visible
> stuff is in good shape, which I no longer have any problems with.
Excellent.
> So
> yeah I think it would be good to get this in and get people up and
> running with it.
Thanks Nick.
[1] http://marc.info/?l=linux-mm&m=118405871911268&w=2
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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