Re: [PATCH] workqueue: Use private WQ for schedule_on_each_cpu() API

[Tejun Heo]

On Mon, Feb 21, 2022 at 07:38:09PM +0900, Tetsuo Handa wrote:
> Since schedule_on_each_cpu() calls schedule_work_on() and flush_work(),
> we should avoid using system_wq in order to avoid unexpected locking
> dependency.

I don't get it. schedule_on_each_cpu() is flushing each work item and thus
shouldn't need its own flushing domain. What's this change for?

Thanks.

-- 
tejun