linux-kernel - Re: [PATCH] workqueue: Ensure that cpumask set for pools created after boot

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Message-ID: <20170628212454.GA32311@htj.duckdns.org>
Date:   Wed, 28 Jun 2017 17:24:54 -0400
From:   Tejun Heo <tj@...nel.org>
To:     Michael Bringmann <mwb@...ux.vnet.ibm.com>
Cc:     Lai Jiangshan <jiangshanlai@...il.com>,
        linux-kernel@...r.kernel.org,
        Nathan Fontenot <nfont@...ux.vnet.ibm.com>
Subject: Re: [PATCH] workqueue: Ensure that cpumask set for pools created
 after boot

On Wed, Jun 28, 2017 at 04:15:09PM -0500, Michael Bringmann wrote:
> I will try that patch tomorrow.  My only concern about that is the use of WARN_ON().
> As I may have mentioned in my note of 6/27, I saw about 600 instances of the warning
> message just during boot of the PowerPC kernel.  I doubt that we want to see that on
> an ongoing basis.

Yeah, we can either do pr_err_once() or WARN_ON_ONCE(), so that we
don't print that out constantly.

Thanks.

-- 
tejun