Re: [PATCH v4 10/11] hugetlb: Introduce generic version of huge_ptep_set_access_flags

Mike Kravetz
2018-07-26T19:12:35Z

On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, ia64, sh, x86 architectures use the same version
> of huge_ptep_set_access_flags, so move this generic implementation
> into asm-generic/hugetlb.h.
>

Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
--
Mike Kravetz

> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
> arch/arm/include/asm/hugetlb-3level.h | 7 -------
> arch/arm64/include/asm/hugetlb.h | 1 +
> arch/ia64/include/asm/hugetlb.h | 7 -------
> arch/mips/include/asm/hugetlb.h | 1 +
> arch/parisc/include/asm/hugetlb.h | 1 +
> arch/powerpc/include/asm/hugetlb.h | 1 +
> arch/sh/include/asm/hugetlb.h | 7 -------
> arch/sparc/include/asm/hugetlb.h | 1 +
> arch/x86/include/asm/hugetlb.h | 7 -------
> include/asm-generic/hugetlb.h | 9 +++++++++
> 10 files changed, 14 insertions(+), 28 deletions(-)
>
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index 8247cd6a2ac6..54e4b097b1f5 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,11 +37,4 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
> return retval;
> }
>
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> - unsigned long addr, pte_t *ptep,
> - pte_t pte, int dirty)
> -{
> - return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
> #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index f4f69ae5466e..80887abcef7f 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -42,6 +42,7 @@ extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
> #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
> extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> pte_t *ptep, pte_t pte);
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
> extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> unsigned long addr, pte_t *ptep,
> pte_t pte, int dirty);
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index 49d1f7949f3a..e9b42750fdf5 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -27,13 +27,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> {
> }
>
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> - unsigned long addr, pte_t *ptep,
> - pte_t pte, int dirty)
> -{
> - return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
> static inline pte_t huge_ptep_get(pte_t *ptep)
> {
> return *ptep;
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 3dcf5debf8c4..120adc3b2ffd 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -63,6 +63,7 @@ static inline int huge_pte_none(pte_t pte)
> return !val || (val = (unsigned long)invalid_pte_table);
> }
>
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
> static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> unsigned long addr,
> pte_t *ptep, pte_t pte,
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 9c3950ca2974..165b4e5a6f32 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -43,6 +43,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> void huge_ptep_set_wrprotect(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep);
>
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
> int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> unsigned long addr, pte_t *ptep,
> pte_t pte, int dirty);
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index 69c14ecac133..658bf7136a3c 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -137,6 +137,7 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> flush_hugetlb_page(vma, addr);
> }
>
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
> extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> unsigned long addr, pte_t *ptep,
> pte_t pte, int dirty);
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index 8df4004977b9..c87195ae0cfa 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -32,13 +32,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> {
> }
>
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> - unsigned long addr, pte_t *ptep,
> - pte_t pte, int dirty)
> -{
> - return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
> static inline pte_t huge_ptep_get(pte_t *ptep)
> {
> return *ptep;
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index c41754a113f3..028a1465fbe7 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -40,6 +40,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
> }
>
> +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
> static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> unsigned long addr, pte_t *ptep,
> pte_t pte, int dirty)
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index de370836a17d..1df8944904c6 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -12,13 +12,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
> return 0;
> }
>
> -static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> - unsigned long addr, pte_t *ptep,
> - pte_t pte, int dirty)
> -{
> - return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> -}
> -
> static inline pte_t huge_ptep_get(pte_t *ptep)
> {
> return *ptep;
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index 9b9039845278..f3c99a03ee83 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -110,4 +110,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
> }
> #endif
>
> +#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
> +static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> + unsigned long addr, pte_t *ptep,
> + pte_t pte, int dirty)
> +{
> + return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
> +}
> +#endif
> +
> #endif /* _ASM_GENERIC_HUGETLB_H */
>