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    SubjectRe: Race between vmtruncate and mapped areas?
    Andrew Morton <akpm@digeo.com> wrote:
    >
    > So the mm/memory.c part would look something like:

    er, right patch, wrong concept. That's the "check i_size after taking
    page_table_lock" patch.

    It's actually not too bad. Yes, there's 64-bit arith involved, but it is
    only a shift.

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