linux-kernel - [PATCH 0/9] sched/nohz: Make the rest of kcpustat vtime aware

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Message-Id: <20191106030807.31091-1-frederic@kernel.org>
Date:   Wed,  6 Nov 2019 04:07:58 +0100
From:   Frederic Weisbecker <frederic@...nel.org>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Pavel Machek <pavel@....cz>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Yauheni Kaliuta <yauheni.kaliuta@...hat.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Rik van Riel <riel@...riel.com>
Subject: [PATCH 0/9] sched/nohz: Make the rest of kcpustat vtime aware

So we fixed CPUTIME_SYSTEM on nohz_full, now is the turn for
CPUTIME_USER, CPUTIME_NICE, CPUTIME_GUEST and CPUTIME_GUEST_NICE.

The tricky piece was to handle "nice-ness" correctly. I think I addressed
most reviews (one year ago now) from peterz
(https://lore.kernel.org/lkml/20181120141754.GW2131@hirez.programming.kicks-ass.net/)
Among which:

* Merge patches that didn't make sense together
* Clarify the changelog (I hope) and add comments
* Also hook nice updates on __setscheduler_params()
* Uninline a big function

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	nohz/kcpustat-v3

HEAD: cfd377b0f261f1107ba5f3d2cf68a8ac5f359943

Thanks,
	Frederic
---

Frederic Weisbecker (9):
      sched/cputime: Allow to pass cputime index on user/guest accounting
      sched/cputime: Standardize the kcpustat index based accounting functions
      sched/vtime: Handle nice updates under vtime
      sched/cputime: Support other fields on kcpustat_field()
      sched/vtime: Bring all-in-one kcpustat accessor for vtime fields
      procfs: Use all-in-one vtime aware kcpustat accessor
      cpufreq: Use vtime aware kcpustat accessors for user time
      leds: Use all-in-one vtime aware kcpustat accessor
      rackmeter: Use vtime aware kcpustat accessor


 arch/ia64/kernel/time.c                 |   6 +-
 arch/powerpc/kernel/time.c              |   6 +-
 arch/s390/kernel/vtime.c                |   2 +-
 drivers/cpufreq/cpufreq.c               |  13 +-
 drivers/cpufreq/cpufreq_governor.c      |   6 +-
 drivers/leds/trigger/ledtrig-activity.c |   9 +-
 drivers/macintosh/rack-meter.c          |   7 +-
 fs/proc/stat.c                          |  20 +-
 include/linux/kernel_stat.h             |  25 ++-
 include/linux/sched.h                   |   1 +
 include/linux/vtime.h                   |   2 +
 kernel/sched/core.c                     |  16 +-
 kernel/sched/cputime.c                  | 378 ++++++++++++++++++++++++++------
 kernel/sched/sched.h                    |  18 ++
 14 files changed, 412 insertions(+), 97 deletions(-)