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    SubjectRe: [PATCH 29/34] mm, page_alloc: remove fair zone allocation policy
    On Fri, Jul 08, 2016 at 10:35:05AM +0100, Mel Gorman wrote:
    > The fair zone allocation policy interleaves allocation requests between
    > zones to avoid an age inversion problem whereby new pages are reclaimed to
    > balance a zone. Reclaim is now node-based so this should no longer be an
    > issue and the fair zone allocation policy is not free. This patch removes
    > it.
    >
    > Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
    > Acked-by: Vlastimil Babka <vbabka@suse.cz>

    It's indeed no longer needed with a single set of LRUs on each NUMA
    node. I'm glad this wart is finally going. Thanks Mel.

    Acked-by: Johannes Weiner <hannes@cmpxchg.org>

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