From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750930AbbAUFPU (ORCPT ); Wed, 21 Jan 2015 00:15:20 -0500 Received: from mail-we0-f175.google.com ([74.125.82.175]:38608 "EHLO mail-we0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750735AbbAUFPT (ORCPT ); Wed, 21 Jan 2015 00:15:19 -0500 Date: Wed, 21 Jan 2015 06:15:14 +0100 From: Ingo Molnar To: "Paul E. McKenney" Cc: xiexiuqi@huawei.com, dave@stgolabs.net, agordeev@redhat.com, bobby.prani@gmail.com, linux-kernel@vger.kernel.org, laijs@cn.fujitsu.com, ying.xue@windriver.com, dahi@linux.vnet.ibm.com, calvinowens@fb.com, mbenes@suse.cz Subject: Re: [GIT PULL rcu/next] RCU commits for 3.20 Message-ID: <20150121051514.GA12032@gmail.com> References: <20150120004502.GA14517@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150120004502.GA14517@linux.vnet.ibm.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Paul E. McKenney wrote: > Hello, Ingo, > > The changes in this series include: > > 1. Documentation updates. These were posted to LKML at > https://lkml.org/lkml/2015/1/7/496. > > 2. Miscellaneous fixes. These were posted to LKML at > https://lkml.org/lkml/2015/1/7/507. > > 3. Preemptible-RCU fixes, including fixing an old bug in the > interaction of RCU priority boosting and CPU hotplug. These were > posted to LKML at https://lkml.org/lkml/2015/1/7/535. > > 4. SRCU updates. These were posted to LKML at > https://lkml.org/lkml/2015/1/7/555. > > 5. RCU CPU stall-warning updates. These were posted to LKML at > https://lkml.org/lkml/2015/1/7/565. > > 6. RCU torture-test updates. These were posted to LKML at > https://lkml.org/lkml/2015/1/7/591. > > These changes are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo > > for you to fetch changes up to 78e691f4ae2d5edea0199ca802bb505b9cdced88: > > Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD (2015-01-15 23:34:34 -0800) > > ---------------------------------------------------------------- > > Alexander Gordeev (1): > rcu: Remove redundant rcu_is_cpu_rrupt_from_idle() from tiny RCU > > Calvin Owens (1): > ksoftirqd: Enable IRQs and call cond_resched() before poking RCU > > David Hildenbrand (1): > hotplugcpu: Avoid deadlocks by waking active_writer > > Davidlohr Bueso (1): > documentation: Fix smp typo in memory-barriers.txt > > Lai Jiangshan (3): > tiny_rcu: Directly force QS when call_rcu_[bh|sched]() on idle_task > rcu: Remove "select IRQ_WORK" from config TREE_RCU > rcu: Revert "Allow post-unlock reference for rt_mutex" to avoid priority-inversion > > Miroslav Benes (1): > rcu: Fix RCU CPU stall detection in tiny implementation > > Paul E. McKenney (43): > rcu: Make rcu_nmi_enter() handle nesting > rcu: Fix invoke_rcu_callbacks() comment > compiler: Allow 1- and 2-byte smp_load_acquire() and smp_store_release() > rcu: Fix rcu_barrier() race that could result in too-short wait > rcu: Protect rcu_boost() lockless accesses with ACCESS_ONCE() > rcu: Rename "empty" to "empty_norm" in preparation for boost rework > rcu: Abstract rcu_cleanup_dead_rnp() from rcu_cleanup_dead_cpu() > rcu: Make rcu_read_unlock_special() propagate ->qsmaskinit bit clearing > rcu: Don't migrate blocked tasks even if all corresponding CPUs offline > rcu: Shorten irq-disable region in rcu_cleanup_dead_cpu() > rcu: Make use of rcu_preempt_has_tasks() > rcu: Don't spawn rcub kthreads on root rcu_node structure > rcu: Don't initiate RCU priority boosting on root rcu_node > rcu: Don't bother affinitying rcub kthreads away from offline CPUs > rcu: Note quiescent state when CPU goes offline > rcu: Don't scan root rcu_node structure for stalled tasks > rcu: Remove redundant callback-list initialization > rcu: Expand SRCU ->completed to 64 bits > rcu: Combine DEFINE_SRCU() and DEFINE_STATIC_SRCU() > rcu: Set default to RCU_CPU_STALL_INFO=y > rcutorture: Add checks for stall ending before dump start > rcu: Make RCU_CPU_STALL_INFO include number of fqs attempts > rcu: Improve diagnostics for spurious RCU CPU stall warnings > rcu: Handle gpnum/completed wrap while dyntick idle > documentation: Record limitations of bitfields and small variables > rcutorture: Issue warnings on close calls due to Reader Batch blows > rcu: Make _batches_completed() functions return unsigned long > rcutorture: Make build-output parsing correctly flag RCU's warnings > rcutorture: Use unsigned for Reader Batch computations > rcu: Provide rcu_batches_completed_sched() for TINY_RCU > rcutorture: Drop rcu_torture_completed() and friends > rcu: Remove redundant rcu_batches_completed() declaration > rcutorture: Check from beginning to end of grace period > rcutorture: Handle different mpstat versions > torture: Add "-enable-kvm -soundhw pcspk" to qemu command line > torture: Flag console.log file to prevent holdovers from earlier runs > rcutorture: Add more diagnostics in rcu_barrier() test failure case > ksoftirqd: Use new cond_resched_rcu_qs() function > rcu: Optionally run grace-period kthreads at real-time priority > rcu: Make cond_resched_rcu_qs() apply to normal RCU flavors > rcu: Add GP-kthread-starvation checks to CPU stall warnings > rcu: Initialize tiny RCU stall-warning timeouts at boot > Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD > > Pranith Kumar (2): > rcupdate: Replace smp_read_barrier_depends() with lockless_dereference() > rcu: Make SRCU optional by using CONFIG_SRCU > > Xie XiuQi (1): > documentation: Update sysfs path for rcu_cpu_stall_timeout > > Ying Xue (1): > rculist: Fix sparse warning > > Documentation/RCU/stallwarn.txt | 16 +- > Documentation/RCU/trace.txt | 32 +- > Documentation/memory-barriers.txt | 46 ++- > arch/arm/kvm/Kconfig | 1 + > arch/arm64/kvm/Kconfig | 1 + > arch/mips/kvm/Kconfig | 1 + > arch/powerpc/kvm/Kconfig | 1 + > arch/s390/kvm/Kconfig | 1 + > arch/tile/kvm/Kconfig | 1 + > arch/x86/Kconfig | 1 + > arch/x86/kvm/Kconfig | 1 + > drivers/clk/Kconfig | 1 + > drivers/cpufreq/Kconfig | 1 + > drivers/devfreq/Kconfig | 1 + > drivers/md/Kconfig | 1 + > drivers/net/Kconfig | 1 + > fs/btrfs/Kconfig | 1 + > fs/notify/Kconfig | 1 + > fs/quota/Kconfig | 1 + > include/linux/compiler.h | 2 +- > include/linux/rculist.h | 16 +- > include/linux/rcupdate.h | 13 +- > include/linux/rcutiny.h | 45 ++- > include/linux/rcutree.h | 11 +- > include/linux/srcu.h | 14 +- > init/Kconfig | 18 +- > kernel/cpu.c | 56 ++-- > kernel/notifier.c | 3 + > kernel/power/Kconfig | 1 + > kernel/rcu/Makefile | 3 +- > kernel/rcu/rcu.h | 6 + > kernel/rcu/rcutorture.c | 66 ++-- > kernel/rcu/srcu.c | 2 +- > kernel/rcu/tiny.c | 113 +------ > kernel/rcu/tiny_plugin.h | 9 +- > kernel/rcu/tree.c | 355 +++++++++++++++------ > kernel/rcu/tree.h | 62 +--- > kernel/rcu/tree_plugin.h | 271 +++++----------- > kernel/rcu/tree_trace.c | 8 +- > kernel/softirq.c | 3 +- > lib/Kconfig.debug | 3 +- > mm/Kconfig | 1 + > security/tomoyo/Kconfig | 1 + > tools/testing/selftests/rcutorture/bin/cpus2use.sh | 2 +- > .../selftests/rcutorture/bin/kvm-recheck-rcu.sh | 18 ++ > .../selftests/rcutorture/bin/kvm-test-1-run.sh | 9 +- > .../selftests/rcutorture/bin/parse-build.sh | 20 +- > .../selftests/rcutorture/bin/parse-console.sh | 2 +- > 48 files changed, 657 insertions(+), 586 deletions(-) Pulled, thanks a lot Paul! Ingo