Re: [PATCH] Clean up MAX_NR_NODES/NUMNODES/etc. [5/5]

From: Jesse Barnes
Date: Tue Sep 16 2003 - 11:49:00 EST


On Mon, Sep 15, 2003 at 05:37:47PM -0700, Matthew Dobson wrote:
> Matthew Dobson wrote:
> >Ok, I made an attempt to clean up this mess quite a while ago (2.5.47),
> >but that patch is utterly useless now. At Martin's urging I've created
> >a new series of patches to resolve this.
> >
> >01 - Make sure MAX_NUMNODES is defined in one and only one place. Remove
> >superfluous definitions. Instead of defining MAX_NUMNODES in
> >asm/numnodes.h, we define NODES_SHIFT there. Then in linux/mmzone.h we
> >turn that NODES_SHIFT value into MAX_NUMNODES.
> >
> >02 - Remove MAX_NR_NODES. This value is only used in a couple of
> >places, and it's incorrectly used in all those places as far as I can
> >tell. Replace with MAX_NUMNODES. Create MAX_NODES_SHIFT and use this
> >value to check NODES_SHIFT is appropriate. A possible future patch
> >should make MAX_NODES_SHIFT vary based on 32 vs. 64 bit archs.
> >
> >03 - Fix up the sh arch. sh defined NR_NODES, change sh to use standard
> >MAX_NUMNODES instead.
> >
> >04 - Fix up the arm arch. This needs to be reviewed. Relatively
> >straightforward replacement of NR_NODES with standard MAX_NUMNODES.
> >
> >05 - Fix up the ia64 arch. This *definitely* needs to be reviewed. This
> >code made my head hurt. I think I may have gotten it right. Totally
> >untested.

Can you send me a patch that contains everything (or just the generic
code plus the ia64 stuff)? The stuff you posted looks good, and I'd
like to test ia64, but I have to merge your patch into the latest
discontig stuff I've been working on to do so.

Thanks,
Jesse
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