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    SubjectRe: [PATCH] flush_cpu_workqueue: don't flush an empty ->worklist
    On Tue, Jan 09, 2007 at 07:38:15PM +0300, Oleg Nesterov wrote:
    > We can't do this. We should thaw cwq->thread (which was bound to the
    > dead CPU) to complete CPU_DEAD event. So we still need some changes.

    I noticed that, but I presumed kthread_stop() will post a wakeup which
    will bring it out of frozen state. Looking at refrigerator(), I realize
    that is not possible.

    So CPU_DEAD should do a thaw_process on the kthread before doing a
    kthread_stop?

    --
    Regards,
    vatsa
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