Re: [PATCH v2 4/7] arch, mm: wire up memfd_secret system call were relevant

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To: Mike Rapoport <rppt@xxxxxxxxxx>
Subject: Re: [PATCH v2 4/7] arch, mm: wire up memfd_secret system call were relevant
From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Mon, 27 Jul 2020 19:25:20 +0200
Cc: "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Christopher Lameter <cl@xxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Elena Reshetova <elena.reshetova@xxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Idan Yaniv <idan.yaniv@xxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, James Bottomley <jejb@xxxxxxxxxxxxx>, "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxxxxx>, Michael Kerrisk <mtk.manpages@xxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Tycho Andersen <tycho@xxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Linux API <linux-api@xxxxxxxxxxxxxxx>, linux-arch <linux-arch@xxxxxxxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Linux FS-devel Mailing List <linux-fsdevel@xxxxxxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>, linux-nvdimm@xxxxxxxxxxxx, linux-riscv <linux-riscv@xxxxxxxxxxxxxxxxxxx>, "the arch/x86 maintainers" <x86@xxxxxxxxxx>, Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx>
In-reply-to: <20200727162935.31714-5-rppt@kernel.org>

On Mon, Jul 27, 2020 at 6:30 PM Mike Rapoport <rppt@xxxxxxxxxx> wrote:
>
> From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
>
> Wire up memfd_secret system call on architectures that define
> ARCH_HAS_SET_DIRECT_MAP, namely arm64, risc-v and x86.
>
> Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
> Acked-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx>

Acked-by: Arnd Bergmann <arnd@xxxxxxxx>

References:
- [PATCH v2 0/7] mm: introduce memfd_secret system call to create "secret" memory areas
  - From: Mike Rapoport
- [PATCH v2 4/7] arch, mm: wire up memfd_secret system call were relevant
  - From: Mike Rapoport

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