Re: [RFC PATCH v2 07/17] cgroup: Prevent kill_css() from being called more than once

From: Tejun Heo
Date: Wed May 17 2017 - 15:24:16 EST


Hello,

On Mon, May 15, 2017 at 09:34:06AM -0400, Waiman Long wrote:
> The kill_css() function may be called more than once under the condition
> that the css was killed but not physically removed yet followed by the
> removal of the cgroup that is hosting the css. This patch prevents any
> harmm from being done when that happens.
>
> Signed-off-by: Waiman Long <longman@xxxxxxxxxx>

So, this is a bug fix which isn't really related to this patchset.
I'm applying it to cgroup/for-4.12-fixes w/ stable cc'd.

Thanks.

--
tejun