linux-kernel - Re: [PATCH] arm64/mm: add fallback option to allocate virtually contiguous memory

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Message-ID: <20200921174313.GA3141@willie-the-truck>
Date:   Mon, 21 Sep 2020 18:43:15 +0100
From:   Will Deacon <will@...nel.org>
To:     sudaraja@...eaurora.org
Cc:     Anshuman Khandual <anshuman.khandual@....com>,
        Steven Price <steven.price@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Rutland <mark.rutland@....com>,
        Logan Gunthorpe <logang@...tatee.com>,
        David Hildenbrand <david@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        pratikp@...eaurora.org
Subject: Re: [PATCH] arm64/mm: add fallback option to allocate virtually
 contiguous memory

On Thu, Sep 10, 2020 at 08:48:40PM +0000, sudaraja@...eaurora.org wrote:
> On 2020-09-10 03:50, Anshuman Khandual wrote:
> > The proposed patch tried to mix both approaches. Regardless, the first
> > approach
> > here seems better and is the case in vmemmap_populate_hugepages()
> > implementation
> > on x86 as well.
> 
> The 1st approach looks more cleaner compared to bailing out in first
> failure, unmapping all previously mapped sections and map entire request
> with vmemmap_populate_basepages. Thanks for the review and suggestion - will
> send over a cleaner patch soon.

Did you send an updated version of this? The threading has gone wonky in
my mail client, so I may have missed it.

Will