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    SubjectCOMPACTION and TRANSPARENT_HUGEPAGE config warning
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    Hello Andrea,
    this commit:

    commit 5d6892407cab23d4bf2f6de065ca351a53849323
    Author: Andrea Arcangeli <aarcange@redhat.com>
    Date: Thu Jan 13 15:47:07 2011 -0800

    thp: select CONFIG_COMPACTION if TRANSPARENT_HUGEPAGE enabled

    causes this warning during the configuration process:

    warning: (TRANSPARENT_HUGEPAGE) selects COMPACTION which has unmet
    direct dependencies (EXPERIMENTAL && HUGETLB_PAGE && MMU)

    This happens because 'select' does not enable the dependencies of its
    target, so when I selected THP it also enabled COMPATION but I don't
    have HUGETLBFS (=HUGETLB_PAGE) enabled.
    Making THP select HUGETLB_PAGE fixes the warning but I'm not 100% sure
    that's correct (does it work without HUGETLBFS?).

    Luca


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