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Message-ID: <56591AED.7050808@huawei.com>
Date: Sat, 28 Nov 2015 11:09:33 +0800
From: Zefan Li <lizefan@...wei.com>
To: Oleg Nesterov <oleg@...hat.com>, Aleksa Sarai <cyphar@...har.com>,
Johannes Weiner <hannes@...xchg.org>, Tejun Heo <tj@...nel.org>
CC: <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/3] cgroup: fix race between cgroup_post_fork() and
cgroup_migrate()
On 2015/11/28 2:57, Oleg Nesterov wrote:
> 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.
>
Allowing tasks migrating between cgroups while forking is problematic. I'm more
than glad to see those changes.
Acked-by: Zefan Li <lizefan@...wei.com>
> 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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