On Sun, May 12, 2013 at 9:23 AM, Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
>
Better if one or two sentences are prepared to show that the following
defines are necessary.
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> ---
> include/linux/huge_mm.h | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
> index 528454c..6b4c9b2 100644
> --- a/include/linux/huge_mm.h
> +++ b/include/linux/huge_mm.h
> @@ -64,6 +64,10 @@ extern pmd_t *page_check_address_pmd(struct page *page,
> #define HPAGE_PMD_MASK HPAGE_MASK
> #define HPAGE_PMD_SIZE HPAGE_SIZE
>
> +#define HPAGE_CACHE_ORDER (HPAGE_SHIFT - PAGE_CACHE_SHIFT)
> +#define HPAGE_CACHE_NR (1L << HPAGE_CACHE_ORDER)
> +#define HPAGE_CACHE_INDEX_MASK (HPAGE_CACHE_NR - 1)
> +
> extern bool is_vma_temporary_stack(struct vm_area_struct *vma);
>
> #define transparent_hugepage_enabled(__vma) \
> @@ -185,6 +189,10 @@ extern int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vm
> #define HPAGE_PMD_MASK ({ BUILD_BUG(); 0; })
> #define HPAGE_PMD_SIZE ({ BUILD_BUG(); 0; })
>
> +#define HPAGE_CACHE_ORDER ({ BUILD_BUG(); 0; })
> +#define HPAGE_CACHE_NR ({ BUILD_BUG(); 0; })
> +#define HPAGE_CACHE_INDEX_MASK ({ BUILD_BUG(); 0; })
> +
> #define hpage_nr_pages(x) 1
>
> #define transparent_hugepage_enabled(__vma) 0
> --
> 1.7.10.4
>
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