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    SubjectRe: [patch 20/20] Add apply_to_page_range() which applies a function to a pte range.
    Matt Mackall wrote:
    > Haven't thought a huge amount about that. Perhaps it's best done with
    > the level 3 callback?
    >

    Level 2, I think, assuming you count the pte pages as level 1. I think
    it can be dealt with, so long as it correctly skips level 1 callbacks
    for superpages, and does the test after the level 2 callback has returned.

    J
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