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    SubjectRe: [PATCH 09/12] nfs: disable data cache revalidation for swapfiles
    On 06/20/2012 05:37 AM, Mel Gorman wrote:
    > The VM does not like PG_private set on PG_swapcache pages. As suggested
    > by Trond in, this patch disables
    > NFS data cache revalidation on swap files. as it does not make
    > sense to have other clients change the file while it is being used as
    > swap. This avoids setting PG_private on swap pages, since there ought
    > to be no further races with invalidate_inode_pages2() to deal with.
    > Since we cannot set PG_private we cannot use page->private which
    > is already used by PG_swapcache pages to store the nfs_page. Thus
    > augment the new nfs_page_find_request logic.
    > Signed-off-by: Peter Zijlstra<>
    > Signed-off-by: Mel Gorman<>

    Acked-by: Rik van Riel<>

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