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SubjectRe: [RFC, PATCH] SLAB : [NUMA] keep nodeid in struct page instead of struct slab
On Wed, 21 Mar 2007 17:42:22 +0200 (EET)
Pekka J Enberg <penberg@cs.helsinki.fi> wrote:

> On Wed, 21 Mar 2007, Christoph Lameter wrote:
> > None of that please. The page flags already contain a node number that is
> > accessible via page_to_nid(). Just make sure that we never put a slab onto
> > the wrong node.
>
> Oh well, here's a patch to find out. (I don't have a NUMA box.)
>

This wont work, because of use_alien_caches knob.

If use_alien_caches is set to 0, your WARN_ON will trigger many false alarms

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