From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751957AbdKMHNn (ORCPT ); Mon, 13 Nov 2017 02:13:43 -0500 Received: from mail-wm0-f52.google.com ([74.125.82.52]:40225 "EHLO mail-wm0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751485AbdKMHNl (ORCPT ); Mon, 13 Nov 2017 02:13:41 -0500 X-Google-Smtp-Source: AGs4zMYGd0+hokd3b/vj/mZud0LtdV8e1aGt8TVz3sx8VXVOYLlDQTq4eDI2mGBCHwM9b0695GjbIA== Date: Mon, 13 Nov 2017 08:13:37 +0100 From: Ingo Molnar To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, "Paul E. McKenney" , Peter Zijlstra , Thomas Gleixner , Andrew Morton Subject: [GIT PULL] RCU updates for v4.15 Message-ID: <20171113071337.lvoqa2idj7rtgv7n@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus, Please pull the latest core-rcu-for-linus git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-rcu-for-linus # HEAD: 72bc286b81d21404cdfecddf76b64c7163aac764 Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu The main changes in this cycle are: - Documentation updates - RCU CPU stall-warning updates - Torture-test updates - Miscellaneous fixes Size wise the biggest updates are to documentation. Excluding documentation the diffstat becomes: 18 files changed, 205 insertions(+), 79 deletions(-) ... and most of the code increase comes from a single commit which expands debugging: 9b9500da8150: rcu: Make RCU CPU stall warnings check for irq-disabled CPUs Thanks, Ingo ------------------> Alan Stern (1): memory-barriers: Rework multicopy-atomicity section Guilherme G. Piccoli (1): doc: Rewrite confusing statement about memory barriers Neeraj Upadhyay (1): rcu: Fix up pending cbs check in rcu_prepare_for_idle Paul E. McKenney (18): documentation: RCU grace-period memory ordering guarantees documentation: Long-running irq handlers can stall RCU grace periods documentation: Slow systems can stall RCU grace periods documentation: Update RCU CPU stall warning messages memory-barriers: Replace uses of "transitive" rcu: Create call_rcu_tasks() kthread at boot time irq_work: Map irq_work_on_queue() to irq_work_on() in !SMP sched: Make resched_cpu() unconditional sched,rcu: Make cond_resched() provide RCU quiescent state rcu: Make RCU CPU stall warnings check for irq-disabled CPUs rcu: Turn off tracing before dumping trace rcu: Suppress RCU CPU stall warnings while dumping trace rcutorture: Add interrupt-disable capability to stall-warning tests rcutorture: Dump writer stack if stalled torture: Provide TMPDIR environment variable to specify tmpdir rcu: Suppress lockdep false-positive ->boost_mtx complaints rcu: Add extended-quiescent-state testing advice srcu: Add parameters to SRCU docbook comments Scott Tsai (1): memory-barriers.txt: Fix typo in pairing example Sebastian Andrzej Siewior (2): rcu: Do not include rtmutex_common.h unconditionally rcu/segcblist: Include rcupdate.h .../Design/Memory-Ordering/Tree-RCU-Diagram.html | 9 + .../Memory-Ordering/Tree-RCU-Memory-Ordering.html | 707 +++ .../TreeRCU-callback-invocation.svg | 486 ++ .../Memory-Ordering/TreeRCU-callback-registry.svg | 655 +++ .../RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg | 700 +++ .../Design/Memory-Ordering/TreeRCU-gp-cleanup.svg | 1126 +++++ .../RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg | 1309 +++++ .../Design/Memory-Ordering/TreeRCU-gp-init-1.svg | 656 +++ .../Design/Memory-Ordering/TreeRCU-gp-init-2.svg | 656 +++ .../Design/Memory-Ordering/TreeRCU-gp-init-3.svg | 632 +++ .../RCU/Design/Memory-Ordering/TreeRCU-gp.svg | 5135 ++++++++++++++++++++ .../RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg | 775 +++ .../RCU/Design/Memory-Ordering/TreeRCU-qs.svg | 1095 +++++ .../RCU/Design/Memory-Ordering/rcu_node-lock.svg | 229 + Documentation/RCU/stallwarn.txt | 200 +- Documentation/admin-guide/kernel-parameters.txt | 3 + Documentation/memory-barriers.txt | 197 +- include/linux/irq_work.h | 3 - kernel/irq_work.c | 9 +- kernel/rcu/rcu.h | 21 +- kernel/rcu/rcu_segcblist.c | 1 + kernel/rcu/rcutorture.c | 24 +- kernel/rcu/tree.c | 159 +- kernel/rcu/tree.h | 5 + kernel/rcu/tree_plugin.h | 14 +- kernel/rcu/update.c | 25 +- kernel/sched/core.c | 5 +- .../selftests/rcutorture/bin/config_override.sh | 2 +- .../selftests/rcutorture/bin/configcheck.sh | 2 +- .../testing/selftests/rcutorture/bin/configinit.sh | 2 +- .../testing/selftests/rcutorture/bin/kvm-build.sh | 2 +- .../selftests/rcutorture/bin/kvm-test-1-run.sh | 2 +- tools/testing/selftests/rcutorture/bin/kvm.sh | 4 +- .../selftests/rcutorture/bin/parse-build.sh | 2 +- .../selftests/rcutorture/bin/parse-torture.sh | 2 +- 35 files changed, 14598 insertions(+), 256 deletions(-) create mode 100644 Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html create mode 100644 Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-invocation.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-cleanup.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-1.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-2.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-3.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-qs.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/rcu_node-lock.svg