From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752028AbdKHK6Q (ORCPT ); Wed, 8 Nov 2017 05:58:16 -0500 Received: from terminus.zytor.com ([65.50.211.136]:57897 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751352AbdKHK6P (ORCPT ); Wed, 8 Nov 2017 05:58:15 -0500 Date: Wed, 8 Nov 2017 02:53:42 -0800 From: tip-bot for Frederic Weisbecker Message-ID: Cc: paulmck@linux.vnet.ibm.com, davem@davemloft.net, linux-kernel@vger.kernel.org, jiangshanlai@gmail.com, hpa@zytor.com, mingo@kernel.org, torvalds@linux-foundation.org, tglx@linutronix.de, tj@kernel.org, peterz@infradead.org, frederic@kernel.org Reply-To: paulmck@linux.vnet.ibm.com, davem@davemloft.net, linux-kernel@vger.kernel.org, jiangshanlai@gmail.com, hpa@zytor.com, mingo@kernel.org, torvalds@linux-foundation.org, tglx@linutronix.de, peterz@infradead.org, tj@kernel.org, frederic@kernel.org In-Reply-To: <1509980490-4285-6-git-send-email-frederic@kernel.org> References: <1509980490-4285-6-git-send-email-frederic@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:locking/core] timers/hrtimer: Use lockdep to assert IRQs are disabled/enabled Git-Commit-ID: 53bef3fd47f69e40b52c9f9acd3551dfff9f8702 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: 53bef3fd47f69e40b52c9f9acd3551dfff9f8702 Gitweb: https://git.kernel.org/tip/53bef3fd47f69e40b52c9f9acd3551dfff9f8702 Author: Frederic Weisbecker AuthorDate: Mon, 6 Nov 2017 16:01:21 +0100 Committer: Ingo Molnar CommitDate: Wed, 8 Nov 2017 11:13:49 +0100 timers/hrtimer: 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/1509980490-4285-6-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar --- kernel/time/hrtimer.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 88f75f9..d325208 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -758,9 +758,7 @@ void clock_was_set(void) */ void hrtimers_resume(void) { - WARN_ONCE(!irqs_disabled(), - KERN_INFO "hrtimers_resume() called with IRQs enabled!"); - + lockdep_assert_irqs_disabled(); /* Retrigger on the local CPU */ retrigger_next_event(NULL); /* And schedule a retrigger for all others */