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    SubjectRe: [PATCH 1/4] pull out the page pre-release and sanity check logic for reuse
    > When we are about to release a page we perform a number of actions
    > on that page. We clear down any anonymous mappings, confirm that
    > the page is safe to release, check for freeing locks, before mapping
    > the page should that be required. Pull this processing out into a
    > helper function for reuse in a later patch.
    >
    > Note that we do not convert the similar cleardown in free_hot_cold_page()
    > as the optimiser is unable to squash the loops during the inline.
    >
    > Signed-off-by: Andy Whitcroft <apw@shadowen.org>

    Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>







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