linux-kernel - [PATCH 0/3] cgroup: fix race between cgroup_post_fork() and cgroup

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Date:	Fri, 27 Nov 2015 19:57:05 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Aleksa Sarai <cyphar@...har.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Li Zefan <lizefan@...wei.com>, Tejun Heo <tj@...nel.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] cgroup: fix race between cgroup_post_fork() and
	cgroup_migrate()

On 11/26, Oleg Nesterov wrote:
>
> OK. I do not know what exactly do you mean, perhaps if you fix this problem
> the race between fork and attach goes away and in this case the fix I sent
> is not needed?

Otherwise please consider this series.

Slightly tested, seems to work; please review.

Oleg.

 include/linux/cgroup-defs.h   |   12 ++------
 include/linux/cgroup.h        |   19 ++++---------
 include/linux/cgroup_subsys.h |   18 ------------
 kernel/cgroup.c               |   30 +++++----------------
 kernel/cgroup_freezer.c       |    2 +-
 kernel/cgroup_pids.c          |   58 +++++++---------------------------------
 kernel/fork.c                 |   16 ++++-------
 kernel/sched/core.c           |    2 +-
 8 files changed, 34 insertions(+), 123 deletions(-)

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