Re: [PATCH v1 12/12] mm: ppc64: Add THP migration support for ppc64.

Balbir Singh
2016-09-30T00:01:57Z

On 27/09/16 01:22, zi.yan@sent.com wrote:
> From: Zi Yan <zi.yan@cs.rutgers.edu>
>
> Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu>
> ---
> arch/powerpc/Kconfig | 4 ++++
> arch/powerpc/include/asm/book3s/64/pgtable.h | 23 +++++++++++++++++++++++
> 2 files changed, 27 insertions(+)
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 927d2ab..84ffd4c 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -553,6 +553,10 @@ config ARCH_SPARSEMEM_DEFAULT
> config SYS_SUPPORTS_HUGETLBFS
> bool
>
> +config ARCH_ENABLE_THP_MIGRATION
> + def_bool y
> + depends on PPC64 && TRANSPARENT_HUGEPAGE && MIGRATION

I had done the same patch before but never posted it, since Nayomi's patches
were blocked behind _PAGE_PSE (x86 specific concern for __pmdp_present())

Having said that this addition looks good to me

Acked-by: Balbir Singh <bsingharora@gmail.com>