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Groups > linux.kernel > #1457026

Re: [PATCH] Cgroup:Fix race between fork and update cpuset mask

From Greg KH <gregkh@linuxfoundation.org>
Newsgroups linux.kernel
Subject Re: [PATCH] Cgroup:Fix race between fork and update cpuset mask
Date 2016-08-05 13:00 +0200
Message-ID <s2L17-6pn-19@gated-at.bofh.it> (permalink)
References <s2pjY-8pF-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Aug 04, 2016 at 07:23:03PM +0800, chaixianping@huawei.com wrote:
> From: chaixianping <chaixianping@huawei.com>
> 
> Fix the race between fork and update_cpumask or update_nodemask.
> Scenario as follows:
> 1)A process fork a child process, the child process have
> inherited the parent process cpus_allowed,mems_allowed
> Before being added cset->tasks list.
> 2)Update_cpumask or update_nodemask change the parent's allowed
> to a new value, *but the child still is the old value.
> after being added cset->tasks list.
> 
> Signed-off-by: Xianping Chai <chaixianping@huawei.com>

This name doesn't match your From: line :(

> Signed-off-by: Zhenghua Jia <jiazhenghua@huawei.com>
> Signed-off-by: Leeyou <leeyou.li@huawei.com>
> Signed-off-by: Lei Liu <liulei@huawei.com>
> ---
>  kernel/cpuset.c | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read Documentation/stable_kernel_rules.txt
for how to do this properly.

</formletter>

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[PATCH] Cgroup:Fix race between fork and update cpuset mask <chaixianping@huawei.com> - 2016-08-04 13:50 +0200
  Re: [PATCH] Cgroup:Fix race between fork and update cpuset mask Greg KH <gregkh@linuxfoundation.org> - 2016-08-05 13:00 +0200

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