Re: [GIT PULL rcu/next] RCU commits for 4.15

[Paul E. McKenney]

Hello, Ingo,

[ Resend, this time remembering to CC LKML. ]

This pull request contains the following changes:

1.	Documentation updates.

	lkml.kernel.org/r/20171004212051.GA8411@xxxxxxxxxxxxxxxxxx

	(But note that a number of these commits were redirected to
	v4.14 on the request of Randy Dunlap and Jon Corbet.)

2.	Miscellaneous fixes.

	lkml.kernel.org/r/20171004212915.GA10089@xxxxxxxxxxxxxxxxxx

3.	RCU CPU stall-warning updates.

	lkml.kernel.org/r/20171004215006.GA12792@xxxxxxxxxxxxxxxxxx

4.	Torture-test updates.

	lkml.kernel.org/r/20171004215609.GA14782@xxxxxxxxxxxxxxxxxx

All of these commits have been exposed 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 ad4e25a3a1a5a95b334242d908e26f1249db83e0:

  Merge branches 'doc.2017.10.20a', 'fixes.2017.10.19a', 'stall.2017.10.09a' and 'torture.2017.10.09a' into HEAD (2017-10-20 11:11:15 -0700)

----------------------------------------------------------------
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 (19):
      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
      Merge branches 'doc.2017.10.20a', 'fixes.2017.10.19a', 'stall.2017.10.09a' and 'torture.2017.10.09a' into HEAD

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 -
 include/linux/srcu.h                               |    1 +
 kernel/irq_work.c                                  |    9 +-
 kernel/rcu/rcu.h                                   |   21 +-
 kernel/rcu/rcu_segcblist.c                         |    1 +
 kernel/rcu/rcutorture.c                            |   24 +-
 kernel/rcu/srcutree.c                              |    2 +-
 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 +-
 37 files changed, 14600 insertions(+), 257 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