Re: single-threaded wq lockdep is broken

Johannes Berg
2017-06-02T08:51:54Z

On Fri, 2017-06-02 at 15:03 +0800, Lai Jiangshan wrote:
>
> the @w2 is not queued before flush_work(&w2), it is expected
> that @w2 is not associated with @wq, and the dependence
> mtx -> wq will not be recorded. And it is expected no warning.

Lockdep is symmetric. So then maybe it won't warn when executing
flush_work(), but should later when executing @w2. No real difference?

johannes