From: Glauber Costa <glommer@parallels.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: cgroups@vger.kernel.org, linux-mm@kvack.org,
Tejun Heo <tj@kernel.org>, Johannes Weiner <hannes@cmpxchg.org>,
kamezawa.hiroyu@jp.fujitsu.com
Subject: Re: [PATCH v3 6/6] memcg: avoid dangling reference count in creation failure.
Date: Mon, 21 Jan 2013 17:08:36 +0400 [thread overview]
Message-ID: <50FD3DD4.5050309@parallels.com> (raw)
In-Reply-To: <20130121123057.GH7798@dhcp22.suse.cz>
On 01/21/2013 04:30 PM, Michal Hocko wrote:
> On Mon 21-01-13 15:13:33, Glauber Costa wrote:
>> When use_hierarchy is enabled, we acquire an extra reference count
>> in our parent during cgroup creation. We don't release it, though,
>> if any failure exist in the creation process.
>>
>> Signed-off-by: Glauber Costa <glommer@parallels.com>
>> Reported-by: Michal Hocko <mhocko@suse>
>
> If you put this one to the head of the series we can backport it to
> stable which is preferred, although nobody have seen this as a problem.
>
If I have to send again, I might. But I see no reason to do so otherwise.
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next prev parent reply other threads:[~2013-01-21 13:08 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-21 11:13 [PATCH v3 0/6] replace cgroup_lock with memcg specific locking Glauber Costa
2013-01-21 11:13 ` [PATCH v3 1/6] memcg: prevent changes to move_charge_at_immigrate during task attach Glauber Costa
2013-01-21 11:13 ` [PATCH v3 2/6] memcg: split part of memcg creation to css_online Glauber Costa
2013-01-21 13:56 ` Michal Hocko
2013-01-21 11:13 ` [PATCH v3 3/6] memcg: fast hierarchy-aware child test Glauber Costa
2013-01-21 14:10 ` Michal Hocko
2013-01-21 11:13 ` [PATCH v3 4/6] memcg: replace cgroup_lock with memcg specific memcg_lock Glauber Costa
2013-01-21 14:49 ` Michal Hocko
2013-01-21 15:12 ` Glauber Costa
2013-01-21 15:20 ` Michal Hocko
2013-01-21 15:34 ` Glauber Costa
2013-01-21 16:07 ` Michal Hocko
2013-01-21 16:12 ` Glauber Costa
2013-01-21 16:33 ` Michal Hocko
2013-01-21 17:37 ` Michal Hocko
2013-01-21 11:13 ` [PATCH v3 5/6] memcg: increment static branch right after limit set Glauber Costa
2013-01-21 11:13 ` [PATCH v3 6/6] memcg: avoid dangling reference count in creation failure Glauber Costa
2013-01-21 12:30 ` Michal Hocko
2013-01-21 13:08 ` Glauber Costa [this message]
2013-01-21 13:19 ` Michal Hocko
2013-01-21 13:26 ` Glauber Costa
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