linux-kernel - Re: [RFC PATCH v2 2/2] arm64 Kconfig: Select gigantic page

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Date:   Mon, 22 Aug 2016 11:21:27 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Xie Yisheng <xieyisheng1@...wei.com>
Cc:     akpm@...ux-foundation.org, mhocko@...nel.org, mark.rutland@....com,
        mhocko@...e.com, linux-mm@...ck.org, sudeep.holla@....com,
        will.deacon@....com, linux-kernel@...r.kernel.org,
        dave.hansen@...el.com, robh+dt@...nel.org, guohanjun@...wei.com,
        n-horiguchi@...jp.nec.com, linux-arm-kernel@...ts.infradead.org,
        mike.kravetz@...cle.com
Subject: Re: [RFC PATCH v2 2/2] arm64 Kconfig: Select gigantic page

On Mon, Aug 22, 2016 at 10:56:43AM +0800, Xie Yisheng wrote:
> Arm64 supports gigantic page after
> commit 084bd29810a5 ("ARM64: mm: HugeTLB support.")
> however, it got broken by 
> commit 944d9fec8d7a ("hugetlb: add support for gigantic page
> allocation at runtime")
> 
> This patch selects ARCH_HAS_GIGANTIC_PAGE to make this
> function can be used again.
> 
> Signed-off-by: Xie Yisheng <xieyisheng1@...wei.com>
> ---
>  arch/arm64/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index bc3f00f..92217f6 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -9,6 +9,7 @@ config ARM64
>  	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
>  	select ARCH_HAS_ELF_RANDOMIZE
>  	select ARCH_HAS_GCOV_PROFILE_ALL
> +	select ARCH_HAS_GIGANTIC_PAGE

Acked-by: Catalin Marinas <catalin.marinas@....com>