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    SubjectRe: [RFC PATCH v4 09/27] x86/mm: Change _PAGE_DIRTY to _PAGE_DIRTY_HW
    On Fri, Sep 21, 2018 at 08:03:33AM -0700, Yu-cheng Yu wrote:
    > We are going to create _PAGE_DIRTY_SW for non-hardware, memory
    > management purposes. Rename _PAGE_DIRTY to _PAGE_DIRTY_HW and
    > _PAGE_BIT_DIRTY to _PAGE_BIT_DIRTY_HW to make these PTE dirty
    > bits more clear. There are no functional changes in this
    > patch.

    I would like there to be some documentation in this patchset which
    explains the difference between PAGE_SOFT_DIRTY and PAGE_DIRTY_SW.

    Also, is it really necessary to rename PAGE_DIRTY? It feels like a
    lot of churn.

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