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    SubjectRe: [PATCH] flush_cpu_workqueue: don't flush an empty ->worklist

    * Srivatsa Vaddagiri <vatsa@in.ibm.com> wrote:

    > This thread makes absolutely -no- calls to try_to_freeze() in its
    > lifetime.

    that's a plain bug. suspend will fail for example. A kernel thread
    either needs to mark itself PF_NOFREEZE (which means it can be ignored
    and zapped with impunity), or needs to call into try_to_freeze() with a
    sane frequency.

    Ingo
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