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    SubjectRe: [PATCH 06/13] x86/ticketlock: add slowpath logic
    On Thu, Sep 1, 2011 at 5:54 PM, Jeremy Fitzhardinge <> wrote:
    > From: Jeremy Fitzhardinge <>
    > Maintain a flag in both LSBs of the ticket lock which indicates whether
    > anyone is in the lock slowpath and may need kicking when the current
    > holder unlocks.  The flags are set when the first locker enters
    > the slowpath, and cleared when unlocking to an empty queue.

    Are there actually two flags maintained? I only see the one in the
    ticket tail getting set/cleared/tested.
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      Last update: 2011-09-02 20:49    [W:0.031 / U:1.228 seconds]
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