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Date: Sun, 11 Mar 2018 10:43:49 +0100
From: Ingo Molnar <mingo@...nel.org>
To: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: linux-kernel@...r.kernel.org, josh@...htriplett.org,
rostedt@...dmis.org, mathieu.desnoyers@...icios.com,
jiangshanlai@...il.com, lianglihao@...wei.com, tj@...nel.org,
changcheng.liu@...el.com, mawilcox@...rosoft.com, evix84@...il.com,
byungchul.park@....com
Subject: Re: [GIT PULL rcu/next] RCU commits for 4.17
* Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:
> Hello, Ingo!
>
> This pull request contains the following changes:
>
> 1. Miscellaneous fixes, perhaps most notably removing obsolete
> code whose only purpose in life was to gather information for
> the now-removed RCU debugfs facility. Other notable changes
> include removing NO_HZ_FULL_ALL in favor of the nohz_full kernel
> boot parameter, minor optimizations for expedited grace periods,
> some added tracing, creating an RCU-specific workqueue using Tejun's
> new WQ_MEM_RECLAIM flag, and several cleanups to code and comments.
>
> http://lkml.kernel.org/r/20180226215219.GA27379@linux.vnet.ibm.com
>
> 2. SRCU cleanups and optimizations.
>
> http://lkml.kernel.org/r/20180226215614.GA31616@linux.vnet.ibm.com
>
> 3. Torture-test updates, perhaps most notably the adding of ARMv8
> support, but also including numerous cleanups and usability fixes.
>
> http://lkml.kernel.org/r/20180307172627.GA15805@linux.vnet.ibm.com
>
> All of these changes have been subjected to 0day Test Robot and -next
> testing, and 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 338c46403f169dd76bff8ed58fd0be0d600e7aba:
>
> Merge branches 'fixes.2018.02.23a', 'srcu.2018.02.20a' and 'torture.2018.02.20a' into HEAD (2018-02-23 15:15:41 -0800)
>
> ----------------------------------------------------------------
> Byungchul Park (1):
> srcu: Remove dead code in srcu_gp_end()
>
> Ildar Ismagilov (3):
> rcu: Fix misprint in srcu_funnel_exp_start
> srcu: Prevent sdp->srcu_gp_seq_needed_exp counter wrap
> srcu: Reduce scans of srcu_data in counter wrap check
>
> Lihao Liang (4):
> rcu: Remove unnecessary spinlock in rcu_boot_init_percpu_data()
> doc: Fix typo in rcutorture documentation
> doc: Fix typo in rcu_head comments
> rcutorture: Add basic ARM64 support to run scripts
>
> Liu, Changcheng (1):
> rcu: Remove redundant nxttail index macro define
>
> Matthew Wilcox (1):
> rcu: Use wrapper for lockdep asserts
>
> Paul E. McKenney (27):
> sched/isolation: Eliminate NO_HZ_FULL_ALL
> rcu: Fix CPU offload boot message when no CPUs are offloaded
> rcu: Remove obsolete boost statistics for debugfs
> rcu: Remove obsolete callback-invocation statistics for debugfs
> rcu: Remove obsolete __rcu_pending() statistics for debugfs
> rcu: Remove obsolete force-quiescent-state statistics for debugfs
> rcu: More clearly identify grace-period kthread stack dump
> rcu: Consolidate rcu.h #ifdefs
> rcu: Fix init_rcu_head() comment.
> rcu: Add more tracing of expedited grace periods
> rcu: Trace expedited GP delays due to transitioning CPUs
> rcu: Make expedited RCU CPU selection avoid unnecessary stores
> srcu: Abstract function name
> rcu: Remove SRCU throttling
> rcutorture: Replace multi-instance kzalloc() with kcalloc()
> rcutorture: Abstract function and module names
> rcutorture: Avoid fake-writer use of undefined primitives
> rcutorture: Re-enable testing of dynamic expediting
> rcutorture: Record which grace-period primitives are tested
> rcutorture: Update kvm.sh header comment
> torture: Specify qemu memory size with --memory argument
> torture: Default jitter off when running rcuperf
> torture: Adjust rcuperf trace processing to allow for workqueues
> torture: Grace periods do not piggyback off of themselves
> torture: Provide more sensible nreader/nwriter defaults for rcuperf
> rcu: Create RCU-specific workqueues with rescuers
> Merge branches 'fixes.2018.02.23a', 'srcu.2018.02.20a' and 'torture.2018.02.20a' into HEAD
>
> Tejun Heo (1):
> rcu: Call touch_nmi_watchdog() while printing stall warnings
>
> Documentation/timers/NO_HZ.txt | 7 ---
> include/linux/rcupdate.h | 10 +--
> include/linux/types.h | 2 +-
> include/trace/events/rcu.h | 4 ++
> kernel/rcu/rcu.h | 38 ++++++++----
> kernel/rcu/rcuperf.c | 21 ++++++-
> kernel/rcu/rcutorture.c | 72 ++++++++++++----------
> kernel/rcu/srcutree.c | 29 +++++----
> kernel/rcu/tree.c | 72 ++++++++--------------
> kernel/rcu/tree.h | 36 +----------
> kernel/rcu/tree_exp.h | 36 ++++++++---
> kernel/rcu/tree_plugin.h | 34 ++++++----
> kernel/time/Kconfig | 10 ---
> kernel/time/tick-sched.c | 22 +------
> .../testing/selftests/rcutorture/bin/functions.sh | 17 ++++-
> .../rcutorture/bin/kvm-recheck-rcuperf-ftrace.sh | 11 ++--
> .../selftests/rcutorture/bin/kvm-test-1-run.sh | 4 +-
> tools/testing/selftests/rcutorture/bin/kvm.sh | 22 +++++--
> .../selftests/rcutorture/configs/rcu/TASKS03 | 1 -
> .../selftests/rcutorture/configs/rcu/TASKS03.boot | 2 +-
> .../selftests/rcutorture/configs/rcu/TREE04 | 1 -
> .../selftests/rcutorture/configs/rcu/TREE04.boot | 2 +-
> .../selftests/rcutorture/configs/rcu/TREE07 | 1 -
> .../rcutorture/configs/rcuperf/ver_functions.sh | 24 +-------
> .../selftests/rcutorture/doc/rcu-test-image.txt | 2 +-
> 25 files changed, 238 insertions(+), 242 deletions(-)
Pulled, thanks a lot Paul!
Ingo
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