Re: [PATCH] cgroup: Fix rootcg cpu.stat guest double counting

[Tejun Heo]

On Thu, Oct 28, 2021 at 03:15:27PM -0700, Dan Schatzberg wrote:
> In account_guest_time in kernel/sched/cputime.c guest time is
> attributed to both CPUTIME_NICE and CPUTIME_USER in addition to
> CPUTIME_GUEST_NICE and CPUTIME_GUEST respectively. Therefore, adding
> both to calculate usage results in double counting any guest time at
> the rootcg.
> 
> Fixes: 936f2a70f207 ("cgroup: add cpu.stat file to root cgroup")
> Signed-off-by: Dan Schatzberg <schatzberg.dan@xxxxxxxxx>

Applying to cgroup/for-5.16.

Thanks.

-- 
tejun