Re: [PATCH] workqueue: ensure all flush_work() completed when being destoryed

[Tejun Heo]

Hello, Lai.

On Mon, Jun 01, 2020 at 06:08:02AM +0000, Lai Jiangshan wrote:
> +static void flush_no_color(struct workqueue_struct *wq)
> +{
...

I'm not too sure about using the colored flushing system for this. Given
that the requirements are a lot simpler, I'd prefer keep it separate and
dumb rather than intertwining it with regular flushes. e.g. each wq can keep
the number of flush work items in flight and a simple wake up mechanism for
the task doing destroy_workqueue().

Thanks.

-- 
tejun