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Date: Mon, 24 Jan 2022 19:43:56 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Andrey Ryabinin <arbn@...dex-team.com>, "Peter Zijlstra (Intel)" <peterz@...radead.org>, Daniel Jordan <daniel.m.jordan@...cle.com>, Tejun Heo <tj@...nel.org> Subject: [PATCH 4.19 198/239] cputime, cpuacct: Include guest time in user time in cpuacct.stat From: Andrey Ryabinin <arbn@...dex-team.com> commit 9731698ecb9c851f353ce2496292ff9fcea39dff upstream. 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@...dex-team.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org> Reviewed-by: Daniel Jordan <daniel.m.jordan@...cle.com> Acked-by: Tejun Heo <tj@...nel.org> Cc: <stable@...r.kernel.org> Link: https://lore.kernel.org/r/20211115164607.23784-1-arbn@yandex-team.com Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- kernel/sched/cputime.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -146,10 +146,10 @@ void account_guest_time(struct task_stru /* Add guest time to cpustat. */ if (task_nice(p) > 0) { - cpustat[CPUTIME_NICE] += cputime; + task_group_account_field(p, CPUTIME_NICE, cputime); cpustat[CPUTIME_GUEST_NICE] += cputime; } else { - cpustat[CPUTIME_USER] += cputime; + task_group_account_field(p, CPUTIME_USER, cputime); cpustat[CPUTIME_GUEST] += cputime; } }
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