linux-kernel - [PATCH 00/14] lockdep: Add lightweight IRQs disabled/enabled check

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Message-Id: <1508460971-8731-1-git-send-email-frederic@kernel.org>
Date:   Fri, 20 Oct 2017 02:55:57 +0200
From:   Frederic Weisbecker <frederic@...nel.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Frederic Weisbecker <frederic@...nel.org>,
        Tejun Heo <tj@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        "David S . Miller" <davem@...emloft.net>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
        Ingo Molnar <mingo@...nel.org>
Subject: [PATCH 00/14] lockdep: Add lightweight IRQs disabled/enabled check

Checking whether IRQs are disabled or enabled is often an important
sanity check. Now we can be sometimes reluctant to have it on fastpath
because reading the flags can be somewhat costly.

As suggested by Peter Zijlstra some time ago, this would be a nice
lockdep extension: it's the natural concurrency sanity checker and it
already tracks down the irqflags state.

So here it is.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
	lockdep/irq

HEAD: 1cb58314de50c73eaf0b0322615ecb7a8ee39592

Thanks,
	Frederic
---

Frederic Weisbecker (14):
      lockdep: Add IRQs disabled/enabled assertion
      irq: Use lockdep to assert IRQs are disabled/enabled
      workqueue: Use lockdep to assert IRQs are disabled/enabled
      nohz: Use lockdep to assert IRQs are disabled/enabled
      hrtimer: Use lockdep to assert IRQs are disabled/enabled
      smp: Use lockdep to assert IRQs are disabled/enabled
      x86: Use lockdep to assert IRQs are disabled/enabled
      perf: Use lockdep to assert IRQs are disabled/enabled
      irq/timings: Use lockdep to assert IRQs are disabled/enabled
      irq_work: Use lockdep to assert IRQs are disabled/enabled
      sched: Use lockdep to assert IRQs are disabled/enabled
      posix-cpu-timers: Use lockdep to assert IRQs are disabled/enabled
      netpoll: Use lockdep to assert IRQs are disabled/enabled
      rcu: Use lockdep to assert IRQs are disabled/enabled


 arch/x86/entry/common.c        |  2 +-
 arch/x86/kernel/smpboot.c      |  2 +-
 include/linux/lockdep.h        | 13 +++++++++++++
 kernel/events/core.c           | 12 ++++++------
 kernel/irq/timings.c           |  2 +-
 kernel/irq_work.c              |  2 +-
 kernel/rcu/tree.c              | 16 ++++++++--------
 kernel/rcu/tree_plugin.h       | 10 +++++-----
 kernel/sched/clock.c           |  2 +-
 kernel/sched/cputime.c         |  3 +--
 kernel/smp.c                   |  2 +-
 kernel/softirq.c               | 10 +++++-----
 kernel/time/hrtimer.c          |  4 +---
 kernel/time/posix-cpu-timers.c |  6 +++---
 kernel/time/tick-sched.c       |  5 ++---
 kernel/workqueue.c             |  2 +-
 net/core/netpoll.c             |  2 +-
 17 files changed, 52 insertions(+), 43 deletions(-)