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    SubjectRe: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core)
    Dave Hansen wrote:

    > My main thought is that _everybody_ is going to have to live with the
    > entry in the 'struct page'. Distros ship one kernel for everybody, and
    > the cost will be paid by those not even using any kind of resource
    > control or containers.

    Every userspace or page cache page will be in an object
    though. Could we do the pointer on a per object (mapping,
    anon vma, ...) basis?

    Kernel pages are not using all of their struct page entries,
    so we could overload a field.

    It all depends on how much we really care about not growing
    struct page :)

    What is important? What you want to be true, or what is true?
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