From: Tejun Heo <tj@kernel.org>
To: Baoquan He <bhe@redhat.com>
Cc: cl@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] perpuc: check pcpu_first_chunk and pcpu_reserved_chunk to avoid handling them twice
Date: Wed, 22 Jul 2015 10:37:29 -0400 [thread overview]
Message-ID: <20150722143729.GM15934@mtj.duckdns.org> (raw)
In-Reply-To: <20150722142900.GA1737@dhcp-17-102.nay.redhat.com>
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.
Thanks!
--
tejun
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next prev parent reply other threads:[~2015-07-22 14:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-20 14:55 [PATCH 1/3] percpu: clean up of schunk->map[] assignment in pcpu_setup_first_chunk Baoquan He
2015-07-20 14:55 ` [PATCH 2/3] perpuc: check pcpu_first_chunk and pcpu_reserved_chunk to avoid handling them twice Baoquan He
2015-07-21 15:28 ` Tejun Heo
2015-07-22 0:03 ` Baoquan He
2015-07-22 13:52 ` Tejun Heo
2015-07-22 14:29 ` Baoquan He
2015-07-22 14:37 ` Tejun Heo [this message]
2015-07-23 1:56 ` Baoquan He
2015-07-23 1:53 ` [PATCH v3 2/3] percpu: Add WARN_ON into percpu_init_late Baoquan He
2015-07-20 14:55 ` [PATCH 3/3] percpu: add macro PCPU_CHUNK_AREA_IN_USE Baoquan He
2015-07-20 15:35 ` Christoph Lameter
2015-07-22 0:25 ` Baoquan He
2015-07-21 15:30 ` Tejun Heo
2015-07-22 0:28 ` Baoquan He
2015-07-22 13:53 ` Tejun Heo
2015-07-23 1:55 ` Baoquan He
2015-07-23 1:50 ` [PATCH v2 3/3] percpu: add macro PCPU_MAP_BUSY Baoquan He
2015-07-20 15:32 ` [PATCH 1/3] percpu: clean up of schunk->map[] assignment in pcpu_setup_first_chunk Christoph Lameter
2015-07-21 15:33 ` Tejun Heo
2015-07-22 0:56 ` Baoquan He
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