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    SubjectRe: [RFC PATCH 0/2] Removal of lumpy reclaim
    On 04/06/2012 04:31 PM, Hugh Dickins wrote:
    > On Fri, 6 Apr 2012, Andrew Morton wrote:
    >> On Wed, 28 Mar 2012 17:06:21 +0100
    >> Mel Gorman<mgorman@suse.de> wrote:
    >>
    >>> (cc'ing active people in the thread "[patch 68/92] mm: forbid lumpy-reclaim
    >>> in shrink_active_list()")
    >>>
    >>> In the interest of keeping my fingers from the flames at LSF/MM, I'm
    >>> releasing an RFC for lumpy reclaim removal.
    >>
    >> I grabbed them, thanks.
    >
    > I do have a concern with this: I was expecting lumpy reclaim to be
    > replaced by compaction, and indeed it is when CONFIG_COMPACTION=y.
    > But when CONFIG_COMPACTION is not set, we're back to 2.6.22 in
    > relying upon blind chance to provide order>0 pages.

    Is this an issue for any architecture?

    I could see NOMMU being unable to use compaction, but
    chances are lumpy reclaim would be sufficient for that
    configuration, anyway...

    --
    All rights reversed


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