From: Michal Hocko <mhocko@suse.cz>
To: Li Zefan <lizefan@huawei.com>
Cc: Hugh Dickins <hughd@google.com>, Tejun Heo <tj@kernel.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
linux-mm@kvack.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: 3.13-rc breaks MEMCG_SWAP
Date: Tue, 17 Dec 2013 13:48:07 +0100 [thread overview]
Message-ID: <20131217124807.GB28991@dhcp22.suse.cz> (raw)
In-Reply-To: <52AFC163.5010507@huawei.com>
On Tue 17-12-13 11:13:39, Li Zefan wrote:
> On 2013/12/17 9:41, Hugh Dickins wrote:
> > On Mon, 16 Dec 2013, Tejun Heo wrote:
> >> On Mon, Dec 16, 2013 at 06:19:37PM +0100, Michal Hocko wrote:
> >>> I have to think about it some more (the brain is not working anymore
> >>> today). But what we really need is that nobody gets the same id while
> >>> the css is alive.
>
> That's what I meant to do in my last reply.
>
> But I'm confused by
>
> "How would this work? .. the swap will be there
> after the last reference to css as well."
Sorry about the confusion. Johannes correctly pointed out that a css
reference is taken when we record memcg id and released after the record
is removed.
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2013-12-17 12:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-16 8:36 Hugh Dickins
2013-12-16 9:36 ` Li Zefan
2013-12-16 9:53 ` Michal Hocko
2013-12-16 10:40 ` Michal Hocko
2013-12-16 16:35 ` Tejun Heo
2013-12-16 17:19 ` Michal Hocko
2013-12-16 17:21 ` Tejun Heo
2013-12-17 1:41 ` Hugh Dickins
2013-12-17 3:13 ` Li Zefan
2013-12-17 7:09 ` Hugh Dickins
2013-12-17 13:11 ` Michal Hocko
2013-12-17 13:14 ` Tejun Heo
2013-12-17 12:29 ` Tejun Heo
2013-12-17 13:12 ` Michal Hocko
2013-12-17 12:48 ` Michal Hocko [this message]
2013-12-17 13:05 ` Michal Hocko
2013-12-17 13:15 ` [PATCH cgroup/for-3.13-fixes] cgroup: don't recycle cgroup id until all csses' have been destroyed Tejun Heo
2013-12-17 13:14 ` 3.13-rc breaks MEMCG_SWAP Michal Hocko
2013-12-16 16:41 ` Johannes Weiner
2013-12-16 17:15 ` Michal Hocko
2013-12-16 17:19 ` Tejun Heo
2013-12-16 9:49 ` Michal Hocko
2013-12-16 16:20 ` Michal Hocko
2013-12-17 2:26 ` Hugh Dickins
2013-12-17 10:25 ` Michal Hocko
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