From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751580AbdJTA4W (ORCPT ); Thu, 19 Oct 2017 20:56:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:46154 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751093AbdJTA4V (ORCPT ); Thu, 19 Oct 2017 20:56:21 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2E04D218A6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=frederic@kernel.org From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Tejun Heo , Peter Zijlstra , "David S . Miller" , Lai Jiangshan , Thomas Gleixner , "Paul E . McKenney" , Ingo Molnar Subject: [PATCH 00/14] lockdep: Add lightweight IRQs disabled/enabled check Date: Fri, 20 Oct 2017 02:55:57 +0200 Message-Id: <1508460971-8731-1-git-send-email-frederic@kernel.org> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. So here it is. git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git lockdep/irq HEAD: 1cb58314de50c73eaf0b0322615ecb7a8ee39592 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 | 2 +- arch/x86/kernel/smpboot.c | 2 +- include/linux/lockdep.h | 13 +++++++++++++ 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, 52 insertions(+), 43 deletions(-)