From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH cgroup/for-3.12 1/2] cgroup: fix
 cgroup_write_event_control()
Date: Thu, 15 Aug 2013 11:41:46 -0400
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To: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

On Thu, Aug 15, 2013 at 11:40:32AM -0400, Tejun Heo wrote:
> From 994a762080e4b136171c82ac78f7d7bbf17a451d Mon Sep 17 00:00:00 2001
> From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Date: Wed, 14 Aug 2013 23:38:21 -0400
> 
> 81eeaf0411 ("cgroup: make cftype->[un]register_event() deal with
> cgroup_subsys_state inst ead of cgroup") updated the cftype event
> methods to take @css (cgroup_subsys_state) instead of @cgroup;
> however, it incorrectly used @css passed to
> cgroup_write_event_control(), which the dummy_css for the cgroup as
> the file is a cgroup core file.  This leads to oops on event
> registration.
> 
> Fix it by using the css matching the event target file.
> 
> Signed-off-by: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Oops, wrong patch.  Please ignore.  Will resend soon.

Sorry about the noise.

-- 
tejun