Messages in this thread | | | Date | Wed, 4 Jun 2014 21:22:27 -0400 | From | Tejun Heo <> | Subject | Re: [PATCH v2] cgroup: don't destroy the default root |
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On Wed, Jun 04, 2014 at 04:48:15PM +0800, Li Zefan wrote: > The default root is allocated and initialized at boot phase, so we > shouldn't destroy the default root when it's umounted, otherwise > it will lead to disaster. > > Just try mount and then umount the default root, and the kernel will > crash immediately. > > v2: > - No need to check for CSS_NO_REF in cgroup_get/put(). (Tejun) > - Better call cgroup_put() for the default root in kill_sb(). (Tejun) > - Add a comment. > > Signed-off-by: Li Zefan <lizefan@huawei.com>
Applied to cgroup/for-3.16.
Thanks.
-- tejun
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