linux-kernel - [GIT PULL] tick/nohz updates v3

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Date:   Thu, 13 May 2021 01:29:14 +0200
From:   Frederic Weisbecker <frederic@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Yunfeng Ye <yeyunfeng@...wei.com>,
        Marcelo Tosatti <mtosatti@...hat.com>
Subject: [GIT PULL] tick/nohz updates v3

Ingo, Thomas,

Please pull the timers/nohz-v3 branch that can be found at:

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

Changes since v2:

* Add Acks from Peter Zijlstra

* Only bother to fetch task's CPU if the task is queued in
	"tick/nohz: Kick only _queued_ task whose tick dependency is updated"
  (reported by Peter Zijlstra)

* Correctly indent comment in
  "tick/nohz: Kick only _queued_ task whose tick dependency is updated"
  (reported by Peter Zijlstra)

* Add Peter's SoB in "tick/nohz: Evaluate the CPU expression after the static key"

* Add "tick/nohz: Call tick_nohz_task_switch() with interrupts disabled"
  (from Peter Zijlstra)

* Add "MAINTAINERS: Add myself as context tracking maintainer"

---
Summary:

* Further reduce ticks and IPIs in full dynticks mode.

* Optimize static key based test for a CPU's nohz_full mode
  and also tick nohz probe on context switch.

* A few cleanups, Kconfig documentation and maintainership clarification.

HEAD: 380b68819eed62264ad8e54467481ca7003248c3

Thanks,
	Frederic
---

Frederic Weisbecker (4):
      tick/nohz: Remove superflous check for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
      tick/nohz: Update nohz_full Kconfig help
      tick/nohz: Only wakeup a single target cpu when kicking a task
      MAINTAINERS: Add myself as context tracking maintainer

Marcelo Tosatti (2):
      tick/nohz: Change signal tick dependency to wakeup CPUs of member tasks
      tick/nohz: Kick only _queued_ task whose tick dependency is updated

Peter Zijlstra (2):
      tick/nohz: Evaluate the CPU expression after the static key
      tick/nohz: Call tick_nohz_task_switch() with interrupts disabled

Yunfeng Ye (2):
      tick/nohz: Conditionally restart tick on idle exit
      tick/nohz: Update idle_exittime on actual idle exit


 MAINTAINERS                    |   6 ++
 include/linux/sched.h          |   2 +
 include/linux/tick.h           |  26 +++++----
 kernel/sched/core.c            |   7 ++-
 kernel/time/Kconfig            |  11 ++--
 kernel/time/posix-cpu-timers.c |   4 +-
 kernel/time/tick-sched.c       | 129 ++++++++++++++++++++++++++++-------------
 7 files changed, 125 insertions(+), 60 deletions(-)