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    SubjectRe: [PATCH 00/14] Concurrent Page Cache
    On Sun, 28 Jan 2007, Peter Zijlstra wrote:

    > With Nick leading the way to getting rid of the read side of the tree_lock,
    > this work continues by breaking the write side of said lock.

    Could we get the read side in separately from the write side? I think I
    get the read side but the write side still looks scary to me and
    introduces new ways of locking. Ladder locking?

    > Aside from breaking MTD this version of the concurrent page cache seems
    > rock solid on my dual core x86_64 box.

    What exactly is the MTD doing and how does it break?
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