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Message-Id: <20180310155717.GA10068@linux.vnet.ibm.com>
Date: Sat, 10 Mar 2018 07:57:17 -0800
From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To: mingo@...nel.org
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: [GIT PULL rcu/next] RCU commits for 4.17
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(-)
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