linux-kernel - Re: [PATCH v6 05/12] mm/sparsemem: Convert kmalloc_section_memmap() to populate_section

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Message-ID: <CA+CK2bAfw=pkYF2Ux-PM5r7U46JbDA-fM3NjQ3a5F_Fs0D0GHA@mail.gmail.com>
Date:   Thu, 2 May 2019 15:28:21 -0400
From:   Pavel Tatashin <pasha.tatashin@...een.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        David Hildenbrand <david@...hat.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        linux-mm <linux-mm@...ck.org>,
        linux-nvdimm <linux-nvdimm@...ts.01.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 05/12] mm/sparsemem: Convert kmalloc_section_memmap()
 to populate_section_memmap()

On Wed, Apr 17, 2019 at 2:53 PM Dan Williams <dan.j.williams@...el.com> wrote:
>
> Allow sub-section sized ranges to be added to the memmap.
> populate_section_memmap() takes an explict pfn range rather than
> assuming a full section, and those parameters are plumbed all the way
> through to vmmemap_populate(). There should be no sub-section usage in
> current deployments. New warnings are added to clarify which memmap
> allocation paths are sub-section capable.
>
> Cc: Michal Hocko <mhocko@...e.com>
> Cc: David Hildenbrand <david@...hat.com>
> Cc: Logan Gunthorpe <logang@...tatee.com>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>

 Reviewed-by: Pavel Tatashin <pasha.tatashin@...een.com>