linux-kernel - Re: [PATCH v2] memblock: make memblock_find_in

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Message-ID: <20210807003134.GR22278@shell.armlinux.org.uk>
Date:   Sat, 7 Aug 2021 01:31:35 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Mike Rapoport <rppt@...nel.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        Andy Lutomirski <luto@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Catalin Marinas <catalin.marinas@....com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Frank Rowand <frowand.list@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Ingo Molnar <mingo@...hat.com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Len Brown <lenb@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Will Deacon <will@...nel.org>, devicetree@...r.kernel.org,
        kvmarm@...ts.cs.columbia.edu, linux-acpi@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-mm@...ck.org,
        linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org,
        x86@...nel.org
Subject: Re: [PATCH v2] memblock: make memblock_find_in_range method private

On Mon, Aug 02, 2021 at 09:37:37AM +0300, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@...ux.ibm.com>
> 
> There are a lot of uses of memblock_find_in_range() along with
> memblock_reserve() from the times memblock allocation APIs did not exist.
> 
> memblock_find_in_range() is the very core of memblock allocations, so any
> future changes to its internal behaviour would mandate updates of all the
> users outside memblock.
> 
> Replace the calls to memblock_find_in_range() with an equivalent calls to
> memblock_phys_alloc() and memblock_phys_alloc_range() and make
> memblock_find_in_range() private method of memblock.
> 
> This simplifies the callers, ensures that (unlikely) errors in
> memblock_reserve() are handled and improves maintainability of
> memblock_find_in_range().
> 
> Signed-off-by: Mike Rapoport <rppt@...ux.ibm.com>
Acked-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

Thanks.

-- 
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