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    SubjectRe: [PATCH v2 2/5] mm: introduce external memory hinting API
    Hello.

    On Tue, Jan 21, 2020 at 10:11:13AM -0800, Minchan Kim wrote:
    > > > I also think people don't want to give an KSM hint to non-mergeable area.
    > >
    > > And how the manager knows which data is mergable?
    >
    > Oleksandr, could you say your thought why you need address range based
    > API?

    It seems I've overlooked an important piece of this submission: one
    cannot apply the hint to all the anonymous mapping regardless of address
    range. For KSM I'd rather either have a possibility to hint all the
    anonymous mappings, or, as it was suggested previously, be able to iterate
    over existing mappings using some (fd-based?) API.

    --
    Best regards,
    Oleksandr Natalenko (post-factum)
    Senior Software Maintenance Engineer

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