Re: [PATCH v9 5/8] arm64: Move hugetlb related definitions out of pgtable.h to page-defs.h

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On Sat, Sep 07, 2019 at 10:25:45AM -0700, Alexander Duyck wrote:
> From: Alexander Duyck <alexander.h.duyck@xxxxxxxxxxxxxxx>
> 
> Move the static definition for things such as HUGETLB_PAGE_ORDER out of
> asm/pgtable.h and place it in page-defs.h. By doing this the includes
> become much easier to deal with as currently arm64 is the only architecture
> that didn't include this definition in the asm/page.h file or a file
> included by it.
> 
> It also makes logical sense as PAGE_SHIFT was already defined in
> page-defs.h so now we also have HPAGE_SHIFT defined there as well.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxxxxxxxx>
> ---
>  arch/arm64/include/asm/page-def.h |    9 +++++++++
>  arch/arm64/include/asm/pgtable.h  |    9 ---------
>  2 files changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/arm64/include/asm/page-def.h b/arch/arm64/include/asm/page-def.h
> index f99d48ecbeef..1c5b079e2482 100644
> --- a/arch/arm64/include/asm/page-def.h
> +++ b/arch/arm64/include/asm/page-def.h
> @@ -20,4 +20,13 @@
>  #define CONT_SIZE		(_AC(1, UL) << (CONT_SHIFT + PAGE_SHIFT))
>  #define CONT_MASK		(~(CONT_SIZE-1))
>  
> +/*
> + * Hugetlb definitions.
> + */
> +#define HUGE_MAX_HSTATE		4
> +#define HPAGE_SHIFT		PMD_SHIFT
> +#define HPAGE_SIZE		(_AC(1, UL) << HPAGE_SHIFT)
> +#define HPAGE_MASK		(~(HPAGE_SIZE - 1))
> +#define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
> +
>  #endif /* __ASM_PAGE_DEF_H */
> diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
> index 7576df00eb50..06a376de9bd6 100644
> --- a/arch/arm64/include/asm/pgtable.h
> +++ b/arch/arm64/include/asm/pgtable.h
> @@ -305,15 +305,6 @@ static inline int pte_same(pte_t pte_a, pte_t pte_b)
>   */
>  #define pte_mkhuge(pte)		(__pte(pte_val(pte) & ~PTE_TABLE_BIT))
>  
> -/*
> - * Hugetlb definitions.
> - */
> -#define HUGE_MAX_HSTATE		4
> -#define HPAGE_SHIFT		PMD_SHIFT
> -#define HPAGE_SIZE		(_AC(1, UL) << HPAGE_SHIFT)
> -#define HPAGE_MASK		(~(HPAGE_SIZE - 1))
> -#define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
> -

Acked-by: Will Deacon <will@xxxxxxxxxx>

I'm assuming you're taking this along with the other patches, but please
shout if you'd rather it went via the arm64 tree.

Will



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