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.
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