On Sun, May 12, 2013 at 9:23 AM, Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
>
> Since we're going to have huge pages in page cache, we need to call
> adjust file-backed VMA, which potentially can contain huge pages.
>
> For now we call it for all VMAs.
>
> Probably later we will need to introduce a flag to indicate that the VMA
> has huge pages.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> ---
Acked-by: Hillf Danton <dhillf@xxxxxxxxx>
> include/linux/huge_mm.h | 11 +----------
> mm/huge_memory.c | 2 +-
> 2 files changed, 2 insertions(+), 11 deletions(-)
>
> diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
> index b20334a..f4d6626 100644
> --- a/include/linux/huge_mm.h
> +++ b/include/linux/huge_mm.h
> @@ -139,7 +139,7 @@ extern void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address,
> #endif
> extern int hugepage_madvise(struct vm_area_struct *vma,
> unsigned long *vm_flags, int advice);
> -extern void __vma_adjust_trans_huge(struct vm_area_struct *vma,
> +extern void vma_adjust_trans_huge(struct vm_area_struct *vma,
> unsigned long start,
> unsigned long end,
> long adjust_next);
> @@ -155,15 +155,6 @@ static inline int pmd_trans_huge_lock(pmd_t *pmd,
> else
> return 0;
> }
> -static inline void vma_adjust_trans_huge(struct vm_area_struct *vma,
> - unsigned long start,
> - unsigned long end,
> - long adjust_next)
> -{
> - if (!vma->anon_vma || vma->vm_ops)
> - return;
> - __vma_adjust_trans_huge(vma, start, end, adjust_next);
> -}
> static inline int hpage_nr_pages(struct page *page)
> {
> if (unlikely(PageTransHuge(page)))
> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
> index d7c9df5..9c3815b 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -2783,7 +2783,7 @@ static void split_huge_page_address(struct mm_struct *mm,
> split_huge_page_pmd_mm(mm, address, pmd);
> }
>
> -void __vma_adjust_trans_huge(struct vm_area_struct *vma,
> +void vma_adjust_trans_huge(struct vm_area_struct *vma,
> unsigned long start,
> unsigned long end,
> long adjust_next)
> --
> 1.7.10.4
>
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