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SubjectRe: NUMA API for Linux
On Thu, 8 Apr 2004 02:26:26 +0200
Andrea Arcangeli <andrea@suse.de> wrote:

> On Thu, Apr 08, 2004 at 02:14:48AM +0200, Andi Kleen wrote:
> > Eliminate the RB color field or use rb_next() instead of vm_next. First
> > alternative is cheaper.
>
> with eliminate I assume you mean to reuse a bit in the vma for that
> (like vma->vm_flags), somewhere the color bit info is needed to make the
> rebalanacing in mmap quick but to still guarantee the max height <= 2 *
> min height.

Yes. Put it either into flags or into the low order bits of a pointer.

-Andi
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