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Message-ID: <20190708090920.GA16500@gmail.com>
Date: Mon, 8 Jul 2019 11:09:20 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
"Paul E. McKenney" <paulmck@...ibm.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Thomas Gleixner <tglx@...utronix.de>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] RCU changes for v5.3
Linus,
Please pull the latest core-rcu-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git core-rcu-for-linus
# HEAD: 83086d654dd08c0f57381522e6819f421677706e Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
The changes in this cycle are:
- RCU flavor consolidation cleanups and optmizations
- Documentation updates
- Miscellaneous fixes
- SRCU updates
- RCU-sync flavor consolidation
- Torture-test updates
- Linux-kernel memory-consistency-model updates, most notably the addition of plain C-language accesses
Thanks,
Ingo
------------------>
Alan Stern (7):
tools/memory-model: Prepare for data-race detection
tools/memory-model: Add definitions of plain and marked accesses
tools/memory-model: Add data-race detection
Documentation: atomic_t.txt: Explain ordering provided by smp_mb__{before,after}_atomic()
tools/memory-model: Expand definition of barrier
tools/memory-model: Change definition of rcu-fence
tools/memory-model: Improve data-race detection
Andrea Parri (3):
rcu: Don't return a value from rcu_assign_pointer()
tools/memory-model: Fix comment in MP+poonceonces.litmus
tools/memory-model: Do not use "herd" to refer to "herd7"
Jiang Biao (2):
rcu: Remove unused rdp local from synchronize_rcu_expedited()
rcu: Make __call_srcu static
Joel Fernandes (Google) (7):
lockdep: Add assertion to check if in an interrupt
rcu: Add checks for dynticks counters in rcu_is_cpu_rrupt_from_idle()
doc/rcuref: Document real world examples in kernel
srcu: Remove unused vmlinux srcu linker entries
module: Make srcu_struct ptr array as read-only
rcutorture: Select from only online CPUs
rcutorture: Add cpu0 to the set of CPUs to add jitter
Neeraj Upadhyay (2):
rcu: Dump specified number of blocked tasks
rcu: Correctly unlock root node in rcu_check_gp_start_stall()
Oleg Nesterov (4):
rcu/sync: Kill rcu_sync_type/gp_type
uprobes: Use DEFINE_STATIC_PERCPU_RWSEM() to initialize dup_mmap_sem
locking/percpu-rwsem: Add DEFINE_PERCPU_RWSEM(), use it to initialize cgroup_threadgroup_rwsem
rcu/sync: Simplify the state machine
Paul E. McKenney (32):
rcu: Check for wakeup-safe conditions in rcu_read_unlock_special()
rcu: Only do rcu_read_unlock_special() wakeups if expedited
rcu: Allow rcu_read_unlock_special() to raise_softirq() if in_irq()
rcu: Use irq_work to get scheduler's attention in clean context
rcu: Inline invoke_rcu_callbacks() into its sole remaining caller
rcu: Avoid self-IPI in sync_rcu_exp_select_node_cpus()
rcu: Avoid self-IPI in sync_sched_exp_online_cleanup()
rcu: Rename rcu_data's ->deferred_qs to ->exp_deferred_qs
rcu: Make kfree_rcu() ignore NULL pointers
rcu: Set a maximum limit for back-to-back callback invocation
doc: Remove ".vnet" from paulmck email addresses
srcu: Allocate per-CPU data for DEFINE_SRCU() in modules
rcutorture: Add cond_resched() to forward-progress free-up loop
rcutorture: Fix stutter_wait() return value and freelist checks
torture: Allow inter-stutter interval to be specified
torture: Make kvm-find-errors.sh and kvm-recheck.sh provide exit status
rcutorture: Provide rudimentary Makefile
rcutorture: Exempt tasks RCU from timely draining of grace periods
rcutorture: Exempt TREE01 from forward-progress testing
rcutorture: Give the scheduler a chance on PREEMPT && NO_HZ_FULL kernels
rcutorture: Halt forward-progress checks at end of run
rcutorture: Add trivial RCU implementation
torture: Capture qemu output
torture: Add function graph-tracing cheat sheet
torture: Run kernel build in source directory
torture: Make --cpus override idleness calculations
torture: Add --trust-make to suppress "make clean"
rcutorture: Dump trace buffer for callback pipe drain failures
torture: Suppress propagating trace_printk() warning
rcutorture: Upper case solves the case of the vanishing NULL pointer
rcu: Upgrade sync_exp_work_done() to smp_mb()
rcu: Fix irritating whitespace error in rcu_assign_pointer()
Sebastian Andrzej Siewior (2):
rcu: Enable elimination of Tree-RCU softirq processing
rcutorture: Tweak kvm options
Waiman Long (1):
rcu: Force inlining of rcu_read_lock()
Zhenzhong Duan (1):
doc: Fixup definition of rcupdate.rcu_task_stall_timeout
Documentation/RCU/rcuref.txt | 21 +-
Documentation/RCU/stallwarn.txt | 2 +-
Documentation/RCU/whatisRCU.txt | 8 +-
Documentation/admin-guide/kernel-parameters.txt | 6 +
Documentation/atomic_t.txt | 17 +-
Documentation/core-api/circular-buffers.rst | 2 +-
Documentation/memory-barriers.txt | 2 +-
.../translations/ko_KR/memory-barriers.txt | 2 +-
include/linux/lockdep.h | 7 +
include/linux/module.h | 5 +
include/linux/percpu-rwsem.h | 10 +-
include/linux/rcu_sync.h | 40 ++--
include/linux/rcupdate.h | 21 +-
include/linux/sched.h | 2 +-
include/linux/srcutree.h | 14 +-
include/linux/torture.h | 2 +-
kernel/cgroup/cgroup.c | 3 +-
kernel/events/uprobes.c | 4 +-
kernel/locking/locktorture.c | 2 +-
kernel/locking/percpu-rwsem.c | 2 +-
kernel/module.c | 5 +
kernel/rcu/rcu.h | 5 +
kernel/rcu/rcutorture.c | 96 +++++++--
kernel/rcu/srcutree.c | 69 ++++++-
kernel/rcu/sync.c | 214 ++++++++++-----------
kernel/rcu/tree.c | 164 +++++++++++++---
kernel/rcu/tree.h | 6 +-
kernel/rcu/tree_exp.h | 53 +++--
kernel/rcu/tree_plugin.h | 195 ++++++-------------
kernel/rcu/tree_stall.h | 4 +-
kernel/rcu/update.c | 13 ++
kernel/torture.c | 23 ++-
tools/include/linux/rcu.h | 4 +-
tools/memory-model/linux-kernel.bell | 6 +
tools/memory-model/linux-kernel.cat | 102 +++++++---
tools/memory-model/linux-kernel.def | 1 +
.../litmus-tests/MP+poonceonces.litmus | 2 +-
tools/memory-model/litmus-tests/README | 2 +-
tools/memory-model/lock.cat | 2 +-
tools/memory-model/scripts/README | 4 +-
tools/memory-model/scripts/checkalllitmus.sh | 2 +-
tools/memory-model/scripts/checklitmus.sh | 2 +-
tools/memory-model/scripts/parseargs.sh | 2 +-
tools/memory-model/scripts/runlitmushist.sh | 2 +-
tools/testing/radix-tree/linux/rcupdate.h | 2 +-
tools/testing/selftests/rcutorture/Makefile | 3 +
.../testing/selftests/rcutorture/bin/configinit.sh | 39 ++--
tools/testing/selftests/rcutorture/bin/cpus2use.sh | 5 +
.../testing/selftests/rcutorture/bin/functions.sh | 13 +-
tools/testing/selftests/rcutorture/bin/jitter.sh | 13 +-
.../testing/selftests/rcutorture/bin/kvm-build.sh | 9 +-
.../selftests/rcutorture/bin/kvm-find-errors.sh | 3 +
.../selftests/rcutorture/bin/kvm-recheck.sh | 13 +-
.../selftests/rcutorture/bin/kvm-test-1-run.sh | 23 +--
tools/testing/selftests/rcutorture/bin/kvm.sh | 14 +-
.../selftests/rcutorture/bin/parse-build.sh | 2 +-
.../selftests/rcutorture/bin/parse-console.sh | 1 +
.../selftests/rcutorture/configs/rcu/CFcommon | 3 +
.../selftests/rcutorture/configs/rcu/TREE01.boot | 1 +
.../selftests/rcutorture/configs/rcu/TRIVIAL | 14 ++
.../selftests/rcutorture/configs/rcu/TRIVIAL.boot | 3 +
61 files changed, 845 insertions(+), 466 deletions(-)
create mode 100644 tools/testing/selftests/rcutorture/Makefile
create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL
create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL.boot
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