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: [PATCH 03/14] workqueue: Use lockdep to assert IRQs are disabled/enabled
Date: Mon, 6 Nov 2017 16:01:19 +0100 [thread overview]
Message-ID: <1509980490-4285-4-git-send-email-frederic@kernel.org> (raw)
In-Reply-To: <1509980490-4285-1-git-send-email-frederic@kernel.org>
Use lockdep to check that IRQs are enabled or disabled as expected. This
way the sanity check only shows overhead when concurrency correctness
debug code is enabled.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
---
kernel/workqueue.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 160fdc6..fa96d29 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1375,7 +1375,7 @@ static void __queue_work(int cpu, struct workqueue_struct *wq,
* queued or lose PENDING. Grabbing PENDING and queueing should
* happen with IRQ disabled.
*/
- WARN_ON_ONCE(!irqs_disabled());
+ lockdep_assert_irqs_disabled();
debug_work_activate(work);
--
2.7.4
next prev parent reply other threads:[~2017-11-06 15:05 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-06 15:01 [GIT PULL] lockdep: Add lightweight IRQs disabled/enabled check v2 Frederic Weisbecker
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 ` Frederic Weisbecker [this message]
2017-11-08 10:52 ` [tip:locking/core] workqueue: " 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
-- strict thread matches above, loose matches on Subject: below --
2017-10-20 0:55 [PATCH 00/14] lockdep: Add lightweight IRQs disabled/enabled check Frederic Weisbecker
2017-10-20 0:56 ` [PATCH 03/14] workqueue: Use lockdep to assert IRQs are disabled/enabled Frederic Weisbecker
2017-10-21 15:39 ` Tejun Heo
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