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    SubjectRe: [PATCH V3] mm/page_alloc: Add alloc_contig_pages()
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    On 10/17/19 8:28 PM, Anshuman Khandual wrote:
    > On 10/18/2019 02:44 AM, John Hubbard wrote:
    >> On 10/17/19 1:24 AM, Anshuman Khandual wrote:
    ...
    > Yeah, it is bit non-trivial because v5 of the pgtable tests are still
    > on the latest linux-next (20191015 or 20191017). You will need to
    > revert the following patches.
    >
    > 1. mm/hugetlb: make alloc_gigantic_page() available for general use
    > 2. mm/debug: add tests validating architecture page table helpers
    > 3. mm-debug-add-tests-validating-architecture-page-table-helpers-fix
    >
    > and apply the following patch (https://patchwork.kernel.org/patch/11190213/)
    >
    > 1. hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic()
    >
    > After which this particular patch here will apply cleanly. Hope this helps.
    >

    Yes, that helps, I wouldn't have worked that out on my own. :)

    I'm not sure if I'll have anything to add, but I do want to take a peek,
    so I can try to keep up with how huge pages are evolving.

    thanks,

    John Hubbard
    NVIDIA

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