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    SubjectRe: [PATCH 1/3] mm: vmscan: Remove lumpy reclaim
    On 04/11/2012 12:38 PM, Mel Gorman wrote:
    > Lumpy reclaim had a purpose but in the mind of some, it was to kick
    > the system so hard it trashed. For others the purpose was to complicate
    > vmscan.c. Over time it was giving softer shoes and a nicer attitude but
    > memory compaction needs to step up and replace it so this patch sends
    > lumpy reclaim to the farm.
    > The tracepoint format changes for isolating LRU pages with this patch
    > applied. Furthermore reclaim/compaction can no longer queue dirty pages in
    > pageout() if the underlying BDI is congested. Lumpy reclaim used this logic
    > and reclaim/compaction was using it in error.
    > Signed-off-by: Mel Gorman<>

    Acked-by: Rik van Riel <>

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