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SubjectRe: [v3] workqueue: Fix double kfree for rescuer
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> There is something wrong with my description.  is it feasible to describe as follows:
>
> The resucer is already free in "destroy_workqueue" and
> "wq->rescuer = NULL" was executed, but in "rcu_free_wq"
> it's release again (equivalent to kfree(NULL)), this is
> unnecessary, so should remove.

I find that this suggestion indicates further wording challenges.
Please try another variant.

Regards,
Markus

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