Re: [PATCH v2 9/9] powerpc/hugetlb: Enable hugetlb migration for ppc64

[Christophe LEROY]

Le 16/05/2017 Ã 11:23, Aneesh Kumar K.V a ÃcritÂ:
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
> ---
>   arch/powerpc/platforms/Kconfig.cputype | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
> index 80175000042d..8acc4f27d101 100644
> --- a/arch/powerpc/platforms/Kconfig.cputype
> +++ b/arch/powerpc/platforms/Kconfig.cputype
> @@ -351,6 +351,11 @@ config PPC_RADIX_MMU
>   	  is only implemented by IBM Power9 CPUs, if you don't have one of them
>   	  you can probably disable this.
>   
> +config ARCH_ENABLE_HUGEPAGE_MIGRATION
> +	def_bool y
> +	depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION
> +
> +

Is there a reason why you redefine ARCH_ENABLE_HUGEPAGE_MIGRATION 
instead of doing a 'select' as it is already defined in mm/Kconfig ?

Christophe

>   config PPC_MMU_NOHASH
>   	def_bool y
>   	depends on !PPC_STD_MMU