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    SubjectRe: PowerPC fastpaths for mutex subsystem

    > What's "unfair"? Mutexes are FIFO, as are x86 semaphores.

    The ppc64 semaphores dont force everyone into the slow path under
    contention. So you could drop and pick up the semaphore even with
    someone waiting. I thought thats how the new mutex code worked.

    Anton
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