linux-kernel - Re: [PATCH 03/15] arm, xtensa: simplify initialization of high memory pages

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Message-ID: <CAMo8Bf+VKHmAm1GV=0D9Um2mpsxjnwp9WrAJq_eKW1MK+_8r6g@mail.gmail.com>
Date:   Tue, 28 Jul 2020 01:09:45 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...nel.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Borislav Petkov <bp@...en8.de>,
        Catalin Marinas <catalin.marinas@....com>,
        Christoph Hellwig <hch@....de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Ingo Molnar <mingo@...hat.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Simek <monstr@...str.eu>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Mackerras <paulus@...ba.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Russell King <linux@...linux.org.uk>,
        Stafford Horne <shorne@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <will@...nel.org>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        clang-built-linux@...glegroups.com,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-c6x-dev@...ux-c6x.org,
        LKML <linux-kernel@...r.kernel.org>, linux-mips@...r.kernel.org,
        Linux Memory Management List <linux-mm@...ck.org>,
        linux-riscv@...ts.infradead.org,
        linux-s390 <linux-s390@...r.kernel.org>,
        "open list:SUPERH" <linux-sh@...r.kernel.org>,
        "open list:TENSILICA XTENSA PORT (xtensa)" 
        <linux-xtensa@...ux-xtensa.org>, linuxppc-dev@...ts.ozlabs.org,
        openrisc@...ts.librecores.org,
        "open list:SPARC + UltraSPAR..." <sparclinux@...r.kernel.org>,
        "moderated list:H8/300 ARCHITECTURE" 
        <uclinux-h8-devel@...ts.sourceforge.jp>,
        "maintainer:X86 ARCHITECTURE..." <x86@...nel.org>
Subject: Re: [PATCH 03/15] arm, xtensa: simplify initialization of high memory pages

On Mon, Jul 27, 2020 at 10:12 PM Mike Rapoport <rppt@...nel.org> wrote:
>
> From: Mike Rapoport <rppt@...ux.ibm.com>
>
> The function free_highpages() in both arm and xtensa essentially open-code
> for_each_free_mem_range() loop to detect high memory pages that were not
> reserved and that should be initialized and passed to the buddy allocator.
>
> Replace open-coded implementation of for_each_free_mem_range() with usage
> of memblock API to simplify the code.
>
> Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
> ---
>  arch/arm/mm/init.c    | 48 +++++++------------------------------
>  arch/xtensa/mm/init.c | 55 ++++++++-----------------------------------
>  2 files changed, 18 insertions(+), 85 deletions(-)

For the xtensa part:
Reviewed-by: Max Filippov <jcmvbkbc@...il.com>
Tested-by: Max Filippov <jcmvbkbc@...il.com>

-- 
Thanks.
-- Max