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    SubjectRe: [PATCH 05/12] vmscan: kill prev_priority completely
    On 06/14/2010 07:17 AM, Mel Gorman wrote:
    > From: KOSAKI Motohiro<kosaki.motohiro@jp.fujitsu.com>
    >
    > Since 2.6.28 zone->prev_priority is unused. Then it can be removed
    > safely. It reduce stack usage slightly.
    >
    > Now I have to say that I'm sorry. 2 years ago, I thought prev_priority
    > can be integrate again, it's useful. but four (or more) times trying
    > haven't got good performance number. Thus I give up such approach.
    >
    > Signed-off-by: KOSAKI Motohiro<kosaki.motohiro@jp.fujitsu.com>
    > Reviewed-by: Johannes Weiner<hannes@cmpxchg.org>
    > Signed-off-by: Mel Gorman<mel@csn.ul.ie>

    Reviewed-by: Rik van Riel <riel@redhat.com>

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