From: Frederic Weisbecker <frederic@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Tejun Heo <tj@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
"David S . Miller" <davem@davemloft.net>,
Lai Jiangshan <jiangshanlai@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [GIT PULL] lockdep: Add lightweight IRQs disabled/enabled check v2
Date: Mon, 6 Nov 2017 16:01:16 +0100 [thread overview]
Message-ID: <1509980490-4285-1-git-send-email-frederic@kernel.org> (raw)
Ingo,
Please pull the lockdep/irq-v2 branch that can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
lockdep/irq-v2
HEAD: c741fbe70afb0e488f4356456e6397d205f115ce
--
Changes on v2:
* Fix spurious warnings when lockdep is temporarily disabled, like NTFS
does while mounting superblock (reported by Wu Fengguang).
* Remove the IRQ flags auto-correction which doesn't make anymore sense
now that the assertion is config-dependent. (Suggested by Peter Zijlstra).
--
Summary:
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.
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 | 4 +---
arch/x86/kernel/smpboot.c | 2 +-
include/linux/lockdep.h | 15 +++++++++++++++
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, 54 insertions(+), 45 deletions(-)
next reply other threads:[~2017-11-06 15:06 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-06 15:01 Frederic Weisbecker [this message]
2017-11-06 15:01 ` [PATCH 01/14] lockdep: Add IRQs disabled/enabled assertion Frederic Weisbecker
2017-11-08 10:51 ` [tip:locking/core] locking/lockdep: Add IRQs disabled/enabled assertion APIs: lockdep_assert_irqs_enabled()/disabled() tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 02/14] irq: Use lockdep to assert IRQs are disabled/enabled Frederic Weisbecker
2017-11-08 10:52 ` [tip:locking/core] irq/softirqs: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 03/14] workqueue: " Frederic Weisbecker
2017-11-08 10:52 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 04/14] nohz: " Frederic Weisbecker
2017-11-08 10:53 ` [tip:locking/core] timers/nohz: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 05/14] hrtimer: " Frederic Weisbecker
2017-11-08 10:53 ` [tip:locking/core] timers/hrtimer: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 06/14] smp: " Frederic Weisbecker
2017-11-08 10:54 ` [tip:locking/core] smp/core: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 07/14] x86: " Frederic Weisbecker
2017-11-08 10:54 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 08/14] perf: " Frederic Weisbecker
2017-11-08 10:54 ` [tip:locking/core] perf/core: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 09/14] irq/timings: " Frederic Weisbecker
2017-11-08 10:55 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 10/14] irq_work: " Frederic Weisbecker
2017-11-08 10:55 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 11/14] sched: " Frederic Weisbecker
2017-11-08 10:56 ` [tip:locking/core] sched/clock, sched/cputime: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 12/14] posix-cpu-timers: " Frederic Weisbecker
2017-11-08 10:56 ` [tip:locking/core] timers/posix-cpu-timers: " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 13/14] netpoll: " Frederic Weisbecker
2017-11-08 10:57 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-06 15:01 ` [PATCH 14/14] rcu: " Frederic Weisbecker
2017-11-08 10:57 ` [tip:locking/core] " tip-bot for Frederic Weisbecker
2017-11-08 9:58 ` [GIT PULL] lockdep: Add lightweight IRQs disabled/enabled check v2 Thomas Gleixner
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