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Re: [PATCH?] race between cgroup_subsys->fork() and cgroup_migrate()

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On Wed, Nov 25, 2015 at 02:51:38PM -0500, Tejun Heo wrote:
> Sounds perfect.  As this needs to go through -stable, can you please
> resend the patch with proper description and SOB?  Please also update
> the now incorrect comment in can_attach.

Ooh, the patch triggers RCU warning from task_css().  It's spurious
and I think the right thing to do at least for now is using
task_css_check() and explain what's going on.

Thanks.

-- 
tejun
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Thread

[PATCH?] race between cgroup_subsys->fork() and cgroup_migrate() Oleg Nesterov <oleg@redhat.com> - 2015-11-25 17:40 +0100
  Re: [PATCH?] race between cgroup_subsys->fork() and cgroup_migrate() Tejun Heo <tj@kernel.org> - 2015-11-25 21:00 +0100
    Re: [PATCH?] race between cgroup_subsys->fork() and cgroup_migrate() Tejun Heo <tj@kernel.org> - 2015-11-25 21:00 +0100
      Re: [PATCH?] race between cgroup_subsys->fork() and cgroup_migrate() Tejun Heo <tj@kernel.org> - 2015-11-25 21:50 +0100
        Re: [PATCH?] race between cgroup_subsys->fork() and  cgroup_migrate() Oleg Nesterov <oleg@redhat.com> - 2015-11-26 17:10 +0100
      Re: [PATCH?] race between cgroup_subsys->fork() and  cgroup_migrate() Oleg Nesterov <oleg@redhat.com> - 2015-11-26 16:40 +0100
        Re: [PATCH?] race between cgroup_subsys->fork() and cgroup_migrate() Aleksa Sarai <cyphar@cyphar.com> - 2015-11-27 00:40 +0100

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