linux-kernel - Re: [PATCH 2/6] mm: Generalize SYS_SUPPORTS_HUGETLBFS (rename as ARCH_SUPPORTS

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Message-ID: <874khjr3e4.fsf@mpe.ellerman.id.au>
Date:   Wed, 10 Mar 2021 16:20:19 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Anshuman Khandual <anshuman.khandual@....com>, linux-mm@...ck.org
Cc:     Anshuman Khandual <anshuman.khandual@....com>, x86@...nel.org,
        linux-ia64@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-snps-arc@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org,
        linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-riscv@...ts.infradead.org, linux-sh@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        Helge Deller <deller@....de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Alexander Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH 2/6] mm: Generalize SYS_SUPPORTS_HUGETLBFS (rename as
 ARCH_SUPPORTS_HUGETLBFS)

Anshuman Khandual <anshuman.khandual@....com> writes:
> SYS_SUPPORTS_HUGETLBFS config has duplicate definitions on platforms that
> subscribe it. Instead, just make it a generic option which can be selected
> on applicable platforms. Also rename it as ARCH_SUPPORTS_HUGETLBFS instead.
> This reduces code duplication and makes it cleaner.
>
> Cc: Russell King <linux@...linux.org.uk>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will@...nel.org>
> Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> Cc: "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>
> Cc: Helge Deller <deller@....de>
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Paul Walmsley <paul.walmsley@...ive.com>
> Cc: Palmer Dabbelt <palmer@...belt.com>
> Cc: Albert Ou <aou@...s.berkeley.edu>
> Cc: Yoshinori Sato <ysato@...rs.sourceforge.jp>
> Cc: Rich Felker <dalias@...c.org>
> Cc: Alexander Viro <viro@...iv.linux.org.uk>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-mips@...r.kernel.org
> Cc: linux-parisc@...r.kernel.org
> Cc: linuxppc-dev@...ts.ozlabs.org
> Cc: linux-riscv@...ts.infradead.org
> Cc: linux-sh@...r.kernel.org
> Cc: linux-fsdevel@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
> ---
>  arch/arm/Kconfig                       | 5 +----
>  arch/arm64/Kconfig                     | 4 +---
>  arch/mips/Kconfig                      | 6 +-----
>  arch/parisc/Kconfig                    | 5 +----
>  arch/powerpc/Kconfig                   | 3 ---
>  arch/powerpc/platforms/Kconfig.cputype | 6 +++---

Acked-by: Michael Ellerman <mpe@...erman.id.au> (powerpc)

cheers