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    SubjectRe: [PATCH 9 of 20] ipath - char devices for diagnostics and lightweight subnet management
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        Bryan> Probably not much.  The motivation was to ensure that if it
    Bryan> got incremented during an iteration, whoever was iterating
    Bryan> would see the update in a timely fashion.

    But as far as I can see, you never do atomic_inc() -- only
    atomic_set() under a spinlock.
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