From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752179AbdKHK76 (ORCPT ); Wed, 8 Nov 2017 05:59:58 -0500 Received: from terminus.zytor.com ([65.50.211.136]:49241 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751713AbdKHK74 (ORCPT ); Wed, 8 Nov 2017 05:59:56 -0500 Date: Wed, 8 Nov 2017 02:55:23 -0800 From: tip-bot for Frederic Weisbecker Message-ID: Cc: torvalds@linux-foundation.org, hpa@zytor.com, mingo@kernel.org, frederic@kernel.org, davem@davemloft.net, paulmck@linux.vnet.ibm.com, jiangshanlai@gmail.com, tj@kernel.org, linux-kernel@vger.kernel.org, peterz@infradead.org, tglx@linutronix.de Reply-To: paulmck@linux.vnet.ibm.com, davem@davemloft.net, tj@kernel.org, linux-kernel@vger.kernel.org, jiangshanlai@gmail.com, peterz@infradead.org, tglx@linutronix.de, hpa@zytor.com, torvalds@linux-foundation.org, mingo@kernel.org, frederic@kernel.org In-Reply-To: <1509980490-4285-10-git-send-email-frederic@kernel.org> References: <1509980490-4285-10-git-send-email-frederic@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:locking/core] irq/timings: Use lockdep to assert IRQs are disabled/enabled Git-Commit-ID: a934d4d15f040cdd254350e7270b35cc7521e12e X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: a934d4d15f040cdd254350e7270b35cc7521e12e Gitweb: https://git.kernel.org/tip/a934d4d15f040cdd254350e7270b35cc7521e12e Author: Frederic Weisbecker AuthorDate: Mon, 6 Nov 2017 16:01:25 +0100 Committer: Ingo Molnar CommitDate: Wed, 8 Nov 2017 11:13:52 +0100 irq/timings: Use lockdep to assert IRQs are disabled/enabled 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 Acked-by: Thomas Gleixner Cc: David S . Miller Cc: Lai Jiangshan Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Tejun Heo Link: http://lkml.kernel.org/r/1509980490-4285-10-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar --- kernel/irq/timings.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/irq/timings.c b/kernel/irq/timings.c index c8c1d07..e0923fa 100644 --- a/kernel/irq/timings.c +++ b/kernel/irq/timings.c @@ -264,7 +264,7 @@ u64 irq_timings_next_event(u64 now) * order to prevent the timings circular buffer to be updated * while we are reading it. */ - WARN_ON_ONCE(!irqs_disabled()); + lockdep_assert_irqs_disabled(); /* * Number of elements in the circular buffer: If it happens it