linux-kernel - Re: 回复: [PATCH v5] workqueue: Remove unnecessary kfree() call in rcu_free

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Message-ID: <20200528103809.GK83516@mtj.thefacebook.com>
Date:   Thu, 28 May 2020 06:38:09 -0400
From:   Tejun Heo <tj@...nel.org>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     "Zhang, Qiang" <Qiang.Zhang@...driver.com>,
        Markus Elfring <markus.elfring@....de>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: 回复: [PATCH v5] workqueue:
 Remove unnecessary kfree() call in rcu_free_wq()

On Thu, May 28, 2020 at 12:57:03PM +0300, Dan Carpenter wrote:
> Guys, the patch is wrong.  The kfree is harmless when this is called
> from destroy_workqueue() and required when it's called from
> pwq_unbound_release_workfn().  Lai Jiangshan already explained this
> already.  Why are we still discussing this?

Oops, missed that. Reverting.

Thanks.

-- 
tejun