linux-kernel - Re: [PATCH 2/3] perpuc: check pcpu_first_chunk and pcpu_reserved

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Message-ID: <20150723015622.GA8369@dhcp-17-102.nay.redhat.com>
Date:	Thu, 23 Jul 2015 09:56:22 +0800
From:	Baoquan He <bhe@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	cl@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] perpuc: check pcpu_first_chunk and
 pcpu_reserved_chunk to avoid handling them twice

On 07/22/15 at 10:37am, Tejun Heo wrote:
> On Wed, Jul 22, 2015 at 10:29:00PM +0800, Baoquan He wrote:
> > > > So if no reserved_size dyn_size is assigned to zero, and is checked to
> > > > see if dchunk need be created in below code:
> > > 
> > > Hmmm... but then pcpu_reserved_chunk is NULL so there still is no
> > > duplicate on the list, no?
> > 
> > Yes, you are quite right. I was mistaken. So NACK this patch.
> 
> But, yeah, it'd be great if we can add a WARN_ON() to ensure that this
> really doesn't happen along with some comments.

Posted [patch v3 2/3] as you suggested.

Thanks a lot!

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