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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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