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    SubjectRe: how do file-mapped (mmapped) pages become dirty?
    Helge Hafting wrote:
    > Amir Hermelin wrote:

    >> What function is responsible for this setting? And when will the page be
    >> written back to disk (i.e. where's the flusher located)?
    >>
    > When there's memory pressure, or a sync.

    Note however that you need an msync() -- fsync() and fdatasync() do not
    catch changes to mmapped pages.

    Chris


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