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    SubjectRe: [RFC git tree] Userspace RCU (urcu) for Linux
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    On Fri, Feb 6, 2009 at 04:05, Mathieu Desnoyers
    <compudj@krystal.dyndns.org> wrote:
    > Hi Paul,
    >
    > I figured out I needed some userspace RCU for the userspace tracing part
    > of LTTng (for quick read access to the control variables) to trace
    > userspace pthread applications. So I've done a quick-and-dirty userspace
    > RCU implementation.
    >
    > It works so far, but I have not gone through any formal verification
    > phase. It seems to work on paper, and the tests are also OK (so far),
    > but I offer no guarantee for this 300-lines-ish 1-day hack. :-) If you
    > want to comment on it, it would be welcome. It's a userland-only
    > library. It's also currently x86-only, but only a few basic definitions
    > must be adapted in urcu.h to port it.
    >
    > Here is the link to my git tree :
    >
    > git://lttng.org/userspace-rcu.git
    >
    > http://lttng.org/cgi-bin/gitweb.cgi?p=userspace-rcu.git;a=summary
    >
    Really interesting, thanks.

    But you should use pthread_equal() for you equality test of pthread_t.

    Regards,
    Bert

    > Thanks,
    >
    > Mathieu


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