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    SubjectRe: [PATCH 1/4] vmscan: simplify shrink_inactive_list()
    > It's a buying-time venture, I'll agree but as both approaches are only
    > about reducing stack stack they wouldn't be long-term solutions by your
    > criteria. What do you suggest?

    (from easy to more complicated):

    - Disable direct reclaim with 4K stacks
    - Do direct reclaim only on separate stacks
    - Add interrupt stacks to any 8K stack architectures.
    - Get rid of 4K stacks completely
    - Think about any other stackings that could give large scale recursion
    and find ways to run them on separate stacks too.
    - Long term: maybe we need 16K stacks at some point, depending on how
    good the VM gets. Alternative would be to stop making Linux more complicated,
    but that's unlikely to happen.


    -Andi
    --
    ak@linux.intel.com -- Speaking for myself only.


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