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    SubjectRe: [PATCH 1/3] copyfile: generic_sendpage
    On Sat, 4 September 2004 18:12:20 +0100, Christoph Hellwig wrote:
    > > o unionmount - you might remember Jan Blunck's fix to ext3
    > Could you give some context please?

    Trivial example union mount:

    Top layer: <empty>
    2nd layer: foo

    Writes to foo have to be done in the top layer, so foo has to be
    copied up first. And since that has to be done inside the kernel,
    any possible implementation will be similar to my code.

    For further details on unionmount, you should ask Jan directly. But
    for politeness' sake, please wait a month or two, so he can focus on
    his university exams before getting into the flamewars. ;)


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