From: Li Zefan <lizefan@huawei.com>
Date: Thu, 27 Feb 2014 10:19:36 +0000 (+0800)
Subject: cpuset: fix a race condition in __cpuset_node_allowed_softwall()
X-Git-Tag: v3.14-rc6~10^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99afb0fd5f05aac467ffa85c36778fec4396209b;p=pandora-kernel.git

cpuset: fix a race condition in __cpuset_node_allowed_softwall()

It's not safe to access task's cpuset after releasing task_lock().
Holding callback_mutex won't help.

Cc: <stable@vger.kernel.org>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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