From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753898AbdKFPGQ (ORCPT ); Mon, 6 Nov 2017 10:06:16 -0500 Received: from mail.kernel.org ([198.145.29.99]:35674 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752918AbdKFPBr (ORCPT ); Mon, 6 Nov 2017 10:01:47 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 46D8521920 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: Ingo Molnar Cc: LKML , Frederic Weisbecker , Tejun Heo , Peter Zijlstra , "David S . Miller" , Lai Jiangshan , Thomas Gleixner , "Paul E . McKenney" Subject: [GIT PULL] lockdep: Add lightweight IRQs disabled/enabled check v2 Date: Mon, 6 Nov 2017 16:01:16 +0100 Message-Id: <1509980490-4285-1-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 Ingo, Please pull the lockdep/irq-v2 branch that can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git lockdep/irq-v2 HEAD: c741fbe70afb0e488f4356456e6397d205f115ce -- Changes on v2: * Fix spurious warnings when lockdep is temporarily disabled, like NTFS does while mounting superblock (reported by Wu Fengguang). * Remove the IRQ flags auto-correction which doesn't make anymore sense now that the assertion is config-dependent. (Suggested by Peter Zijlstra). -- Summary: 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. 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 | 4 +--- arch/x86/kernel/smpboot.c | 2 +- include/linux/lockdep.h | 15 +++++++++++++++ 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, 54 insertions(+), 45 deletions(-)