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SubjectRe: [PATCH V3 1/4] kthread: add a mechanism to store cgroup info
On Thu, Sep 14, 2017 at 02:02:04PM -0700, Shaohua Li wrote:
> From: Shaohua Li <shli@fb.com>
>
> kthread usually runs jobs on behalf of other threads. The jobs should be
> charged to cgroup of original threads. But the jobs run in a kthread,
> where we lose the cgroup context of original threads. The patch adds a
> machanism to record cgroup info of original threads in kthread context.
> Later we can retrieve the cgroup info and attach the cgroup info to jobs.
>
> Since this mechanism is only required by kthread, we store the cgroup
> info in kthread data instead of generic task_struct.
>
> Signed-off-by: Shaohua Li <shli@fb.com>

Acked-by: Tejun Heo <tj@kernel.org>

Thanks.

--
tejun

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