[RFC PATCH 0/5] vtime: Fix wrong user and system time accounting

From: Frederic Weisbecker
Date: Thu Jun 29 2017 - 13:15:26 EST


Hi,

This is a proposition to fix
"[BUG nohz]: wrong user and system time accounting":
http://lkml.kernel.org/r/20170323165512.60945ac6@xxxxxxxxxx

I took Wanpeng Li's last patch and enhanced around it.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
sched/core

HEAD: 9c7442613755e0ee0fc915ac876d88d4d2c7385e

Thanks,
Frederic
---

Frederic Weisbecker (4):
vtime: Remove vtime_account_user()
sched: Always set vtime_snap_whence after accounting vtime
sched: Rename vtime fields
sched: Move vtime task fields to their own struct

Wanpeng Li (1):
sched: Accumulate vtime on top of nsec clocksource


include/linux/init_task.h | 6 +-
include/linux/sched.h | 29 ++++++---
include/linux/vtime.h | 9 +--
kernel/fork.c | 6 +-
kernel/sched/cputime.c | 158 ++++++++++++++++++++++++++++------------------
5 files changed, 123 insertions(+), 85 deletions(-)