[grsec] strange difference in latest patch

[pageexec at freemail.hu]

On 27 Aug 2009 at 13:40, Carlos Carvalho wrote:

> -extern pte_t swapper_pg_fixmap[PTRS_PER_PMD];
> +extern pte_t swapper_pg_fixmap0[PTRS_PER_PMD];
> +extern pte_t swapper_pg_fixmap1[PTRS_PER_PMD];
> +extern pte_t swapper_pg_fixmap2[PTRS_PER_PMD];
> +extern pte_t swapper_pg_fixmap3[PTRS_PER_PMD];
> 
> However these are not referenced anywhere in the rest of the (small)
> changes between the two versions. I have no idea what
> swapper_pg_fixmap* means but I'd expect them to be referenced
> somewhere.

how about arch/x86/kernel/head_32.S? ;)