linux-kernel - Re: [PATCH] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes

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Message-ID: <541d31f2-b4b7-e401-2fe9-7965d81b2f0a@oracle.com>
Date:   Mon, 24 Sep 2018 09:48:05 -0700
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org
Cc:     mhocko@...nel.org, punit.agrawal@....com, will.deacon@....com,
        akpm@...ux-foundation.org
Subject: Re: [PATCH] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page
 sizes

On 9/24/18 7:06 AM, Anshuman Khandual wrote:
> ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.
> This just adds mmap() system call argument encoding for them.
> 
> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
> ---
>  include/uapi/asm-generic/hugetlb_encode.h | 2 ++
>  include/uapi/linux/mman.h                 | 2 ++
>  2 files changed, 4 insertions(+)

Thanks Anshuman,

However, I think we should also add similar definitions in:
uapi/linux/memfd.h
uapi/linux/shm.h

-- 
Mike Kravetz