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    SubjectRe: [PATCH -mmotm-2009-12-10-17-19] Prevent churning of zero page in LRU list.
    > VM doesn't add zero page to LRU list.
    > It means zero page's churning in LRU list is pointless.
    > As a matter of fact, zero page can't be promoted by mark_page_accessed
    > since it doesn't have PG_lru.
    > This patch prevent unecessary mark_page_accessed call of zero page
    > alghouth caller want FOLL_TOUCH.
    > Signed-off-by: Minchan Kim <>

    Looks good to me.
    Reviewed-by: KOSAKI Motohiro <>

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      Last update: 2009-12-28 04:21    [W:0.022 / U:1.848 seconds]
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