Re: [PATCH v2 1/5] cputime, cpuacct: Include guest time in user time in cpuacct.stat

From: Tejun Heo
Date: Tue Sep 07 2021 - 13:19:27 EST


On Fri, Aug 20, 2021 at 12:40:01PM +0300, Andrey Ryabinin wrote:
> cpuacct.stat in no-root cgroups shows user time without guest time
> included int it. This doesn't match with user time shown in root
> cpuacct.stat and /proc/<pid>/stat. This also affects cgroup2's cpu.stat
> in the same way.
>
> Make account_guest_time() to add user time to cgroup's cpustat to
> fix this.
>
> Fixes: ef12fefabf94 ("cpuacct: add per-cgroup utime/stime statistics")
> Signed-off-by: Andrey Ryabinin <arbn@xxxxxxxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx>

The fact that this has been broken for so long, prolly from the beginning,
gives me some pause but the patches looks fine to me.

For the series,

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

--
tejun