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

From: Paul E. McKenney
Date: Mon Oct 23 2017 - 16:45:19 EST


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