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    SubjectRe: [PATCHv3 02/17] mm/khugepaged: Do not collapse pages in encrypted VMAs
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    On 06/12/2018 07:39 AM, Kirill A. Shutemov wrote:
    > Pages for encrypted VMAs have to be allocated in a special way:
    > we would need to propagate down not only desired NUMA node but also
    > whether the page is encrypted.
    >
    > It complicates not-so-trivial routine of huge page allocation in
    > khugepaged even more. It also puts more pressure on page allocator:
    > we cannot re-use pages allocated for encrypted VMA to collapse
    > page in unencrypted one or vice versa.
    >
    > I think for now it worth skipping encrypted VMAs. We can return
    > to this topic later.

    You're asking for this to be included, but without a major piece of THP
    support. Is THP support unimportant for this feature?

    Are we really asking the x86 maintainers to merge this feature with this
    restriction in place?

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