linux-kernel - [PATCH v4 00/19] sched: Migrate disable support

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Message-ID: <20201023101158.088940906@infradead.org>
Date:   Fri, 23 Oct 2020 12:11:58 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     tglx@...utronix.de, mingo@...nel.org
Cc:     linux-kernel@...r.kernel.org, bigeasy@...utronix.de,
        qais.yousef@....com, swood@...hat.com, peterz@...radead.org,
        valentin.schneider@....com, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vincent.donnefort@....com, tj@...nel.org,
        ouwen210@...mail.com
Subject: [PATCH v4 00/19] sched: Migrate disable support

Hi,

The fourth version of migrate_disable() for PREEMPT_RT.

Two changes since last time:

 - fixes !SMP builds (bigeasy)
 - TLA+ validation of migrate_disable() vs sched_setaffinity() (valsch)

Esp. that latter resulted in significant changes to patch #10. Huge thanks to
Valentin.

---
 fs/proc/array.c               |    4 
 include/linux/cpuhotplug.h    |    1 
 include/linux/cpumask.h       |    6 
 include/linux/preempt.h       |   69 +++
 include/linux/sched.h         |    5 
 include/linux/sched/hotplug.h |    2 
 include/linux/stop_machine.h  |    5 
 include/trace/events/sched.h  |   12 
 kernel/cpu.c                  |    9 
 kernel/sched/core.c           |  925 +++++++++++++++++++++++++++++++++---------
 kernel/sched/cpudeadline.c    |    4 
 kernel/sched/cpupri.c         |    4 
 kernel/sched/deadline.c       |   47 +-
 kernel/sched/rt.c             |   81 ++-
 kernel/sched/sched.h          |   59 ++
 kernel/stop_machine.c         |   23 -
 kernel/workqueue.c            |    4 
 lib/cpumask.c                 |   18 
 lib/dump_stack.c              |    2 
 lib/smp_processor_id.c        |    5 
 20 files changed, 1056 insertions(+), 229 deletions(-)