On Thu, 31 May 2012, David Rientjes wrote:
> On Wed, 23 May 2012, Christoph Lameter wrote:
>
> > Add fields to the page struct so that it is properly documented that
> > slab overlays the lru fields.
> >
> > This cleans up some casts in slab.
> >
>
> Sounds good, but...
>
> > Index: linux-2.6/include/linux/mm_types.h
> > ===================================================================
> > --- linux-2.6.orig/include/linux/mm_types.h 2012-05-22 09:05:49.716464025 -0500
> > +++ linux-2.6/include/linux/mm_types.h 2012-05-22 09:21:28.532444572 -0500
> > @@ -90,6 +90,10 @@ struct page {
> > atomic_t _count; /* Usage count, see below. */
> > };
> > };
> > + struct { /* SLAB */
> > + struct kmem_cache *slab_cache;
> > + struct slab *slab_page;
> > + };
> > };
> >
> > /* Third double word block */
>
> The lru fields are in the third double word block.
Right. This slipped somehow into an earlier double word block. Next
patchset fixes that.
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