On Wed, 2006-08-16 at 19:40 +0400, Kirill Korotaev wrote:
> --- ./include/linux/mm.h.kmemcore 2006-08-16 19:10:38.000000000
> +0400
> +++ ./include/linux/mm.h 2006-08-16 19:10:51.000000000 +0400
> @@ -274,8 +274,14 @@ struct page {
> unsigned int gfp_mask;
> unsigned long trace[8];
> #endif
> +#ifdef CONFIG_USER_RESOURCE
> + union {
> + struct user_beancounter *page_ub;
> + } bc;
> +#endif
> };
Is everybody OK with adding this accounting to the 'struct page'? Is
there any kind of noticeable performance penalty for this? I thought
that we had this aligned pretty well on cacheline boundaries.
How many things actually use this? Can we have the slab ubcs without
the struct page pointer?
-- Dave
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