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    SubjectRe: [PATCH 1/4] Pte drop ptep_get_and_clear paravirt op.patch
    Jeremy Fitzhardinge wrote:
    > Zachary Amsden wrote:
    >
    >> In shadow mode hypervisors, ptep_get_and_clear achieves the desired
    >> purpose of keeping the shadows in sync by issuing a native_get_and_clear,
    >> followed by a call to pte_update, which indicates the PTE has been
    >> modified.
    >>
    >> Direct mode hypervisors (Xen) have no need for this anyway, and will trap
    >> the update using writable pagetables.
    >>
    >> This means no hypervisor makes use of ptep_get_and_clear; there is no
    >> reason to have it in the paravirt-ops structure. Change confusing
    >> terminology about raw vs. native functions into consistent use of
    >> native_pte_xxx for operations which do not invoke paravirt-ops.
    >>
    >>
    >
    > Looks OK to me. Are you going to put this into the pvops queue?
    >
    > Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com>

    Yes, the rest are still undergoing feedback. I'll kick this in and
    fixup the damage it causes.

    Zach
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