linux-kernel - Re: [RFC PATCH v4] workqueue: Introduce show_one_worker_pool and show_one

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Message-ID: <YXBBpdrxcGEfdESC@slm.duckdns.org>
Date:   Wed, 20 Oct 2021 06:19:49 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Imran Khan <imran.f.khan@...cle.com>
Cc:     jiangshanlai@...il.com, gregkh@...uxfoundation.org,
        jirislaby@...nel.org, rafael@...nel.org, pavel@....cz,
        len.brown@...el.com, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [RFC PATCH v4] workqueue: Introduce show_one_worker_pool and
 show_one_workqueue.

On Wed, Oct 20, 2021 at 02:09:00PM +1100, Imran Khan wrote:
> Currently show_workqueue_state shows the state of all workqueues and of
> all worker pools. In certain cases we may need to dump state of only a
> specific workqueue or worker pool. For example in destroy_workqueue we
> only need to show state of the workqueue which is getting destroyed.
> 
> So rename show_workqueue_state to show_all_workqueues(to signify it
> dumps state of all busy workqueues) and divide it into more granular
> functions (show_one_workqueue and show_one_worker_pool), that would show
> states of individual workqueues and worker pools and can be used in
> cases such as the one mentioned above.
> 
> Also, as mentioned earlier, make destroy_workqueue dump data pertaining
> to only the workqueue that is being destroyed and make user(s) of
> earlier interface(show_workqueue_state), use new interface
> (show_all_workqueues).
> 
> Signed-off-by: Imran Khan <imran.f.khan@...cle.com>

Applied to wq/for-5.16.

Thank you.

-- 
tejun