From: Nick Piggin <npiggin@xxxxxxx>
Date: Fri, 28 Mar 2008 03:55:41 +0100
> @@ -40,6 +41,8 @@
> #define _PAGE_UNUSED3 (_AC(1, L)<<_PAGE_BIT_UNUSED3)
> #define _PAGE_PAT (_AC(1, L)<<_PAGE_BIT_PAT)
> #define _PAGE_PAT_LARGE (_AC(1, L)<<_PAGE_BIT_PAT_LARGE)
> +#define _PAGE_SPECIAL (_AC(1, L)<<_PAGE_BIT_SPECIAL)
> +#define __HAVE_ARCH_PTE_SPECIAL
What tests __HAVE_ARCH_PTE_SPECIAL?
> @@ -167,7 +170,7 @@ static inline pte_t pte_mkhuge(pte_t pte
> static inline pte_t pte_clrhuge(pte_t pte) { return __pte(pte_val(pte) & ~(pteval_t)_PAGE_PSE); }
> static inline pte_t pte_mkglobal(pte_t pte) { return __pte(pte_val(pte) | _PAGE_GLOBAL); }
> static inline pte_t pte_clrglobal(pte_t pte) { return __pte(pte_val(pte) & ~(pteval_t)_PAGE_GLOBAL); }
> -static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
> +static inline pte_t pte_mkspecial(pte_t pte) { return __pte(pte_val(pte) | _PAGE_SPECIAL); }
And what calls pte_mkspecial?
I don't see any code that sets the special bit anywhere
in these two patches.
What am I missing?
--
To unsubscribe from this list: send the line "unsubscribe linux-arch" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
