From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752177AbdKHK6o (ORCPT ); Wed, 8 Nov 2017 05:58:44 -0500 Received: from terminus.zytor.com ([65.50.211.136]:32865 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751495AbdKHK6m (ORCPT ); Wed, 8 Nov 2017 05:58:42 -0500 Date: Wed, 8 Nov 2017 02:54:09 -0800 From: tip-bot for Frederic Weisbecker Message-ID: Cc: hpa@zytor.com, peterz@infradead.org, davem@davemloft.net, torvalds@linux-foundation.org, paulmck@linux.vnet.ibm.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, tj@kernel.org, jiangshanlai@gmail.com, frederic@kernel.org, mingo@kernel.org Reply-To: jiangshanlai@gmail.com, frederic@kernel.org, mingo@kernel.org, hpa@zytor.com, peterz@infradead.org, davem@davemloft.net, torvalds@linux-foundation.org, paulmck@linux.vnet.ibm.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, tj@kernel.org In-Reply-To: <1509980490-4285-7-git-send-email-frederic@kernel.org> References: <1509980490-4285-7-git-send-email-frederic@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:locking/core] smp/core: Use lockdep to assert IRQs are disabled/enabled Git-Commit-ID: 83efcbd028ad3aec36b5a3882cfa32490c135df7 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: 83efcbd028ad3aec36b5a3882cfa32490c135df7 Gitweb: https://git.kernel.org/tip/83efcbd028ad3aec36b5a3882cfa32490c135df7 Author: Frederic Weisbecker AuthorDate: Mon, 6 Nov 2017 16:01:22 +0100 Committer: Ingo Molnar CommitDate: Wed, 8 Nov 2017 11:13:50 +0100 smp/core: 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/1509980490-4285-7-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar --- kernel/smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/smp.c b/kernel/smp.c index c94dd85..084c8b3 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -213,7 +213,7 @@ static void flush_smp_call_function_queue(bool warn_cpu_offline) call_single_data_t *csd, *csd_next; static bool warned; - WARN_ON(!irqs_disabled()); + lockdep_assert_irqs_disabled(); head = this_cpu_ptr(&call_single_queue); entry = llist_del_all(head);