From: Tejun Heo <tj@kernel.org>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: jiangshanlai@gmail.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH workqueues] Further upgrade queue_work_on() comment
Date: Tue, 9 May 2023 05:37:56 -1000 [thread overview]
Message-ID: <ZFpo1OA7hnRaVrgx@slm.duckdns.org> (raw)
In-Reply-To: <ae548f82-fd4e-490e-889a-3307b9a2c531@paulmck-laptop>
On Fri, Apr 28, 2023 at 04:47:07PM -0700, Paul E. McKenney wrote:
> The current queue_work_on() docbook comment says that the caller must
> ensure that the specified CPU can't go away, and further says that the
> penalty for failing to nail down the specified CPU is that the workqueue
> handler might find itself executing on some other CPU. This is true
> as far as it goes, but fails to note what happens if the specified CPU
> never was online. Therefore, further expand this comment to say that
> specifying a CPU that was never online will result in a splat.
>
> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
> Cc: Lai Jiangshan <jiangshanlai@gmail.com>
> Cc: Tejun Heo <tj@kernel.org>
Applied to wq/for-6.5.
Thanks.
--
tejun
prev parent reply other threads:[~2023-05-09 15:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-28 23:47 Paul E. McKenney
2023-05-09 15:37 ` Tejun Heo [this message]
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