Messages in this thread | | | Date | Mon, 30 Mar 2020 15:32:59 +0200 | From | Ingo Molnar <> | Subject | [GIT PULL] RCU changes for v5.7 |
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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: baf5fe761846815164753d1bd0638fd3696db8fd Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
The main changes in this cycle were:
- Make kfree_rcu() use kfree_bulk() for added performance - RCU updates - Callback-overload handling updates - Tasks-RCU KCSAN and sparse updates - Locking torture test and RCU torture test updates - Documentation updates - Miscellaneous fixes
Thanks,
Ingo
------------------> Amol Grover (1): rculist: Add brackets around cond argument in __list_check_rcu macro
Colin Ian King (1): rcu: Fix spelling mistake "leval" -> "level"
Eric Dumazet (1): timer: Use hlist_unhashed_lockless() in timer_pending()
Joel Fernandes (Google) (2): rcuperf: Measure memory footprint during kfree_rcu() test doc: Add some more RCU list patterns in the kernel
Jules Irenge (4): rcu: Add missing annotation for rcu_nocb_bypass_lock() rcu/nocb: Add missing annotation for rcu_nocb_bypass_unlock() rcu: Add missing annotation for exit_tasks_rcu_start() rcu: Add missing annotation for exit_tasks_rcu_finish()
Madhuparna Bhowmik (1): nfs: Fix nfs_access_get_cached_rcu() sparse error
Paul E. McKenney (54): rcu: Warn on for_each_leaf_node_cpu_mask() from non-leaf rcu: Fix exp_funnel_lock()/rcu_exp_wait_wake() datarace rcu: Provide debug symbols and line numbers in KCSAN runs rcu: Add WRITE_ONCE() to rcu_node ->qsmask update rcu: Add WRITE_ONCE to rcu_node ->exp_seq_rq store rcu: Add READ_ONCE() to rcu_node ->gp_seq rcu: Add WRITE_ONCE() to rcu_state ->gp_req_activity rcu: Add WRITE_ONCE() to rcu_node ->qsmaskinitnext locking/rtmutex: rcu: Add WRITE_ONCE() to rt_mutex ->owner rcu: Add READ_ONCE() to rcu_segcblist ->tails[] rcu: Add *_ONCE() for grace-period progress indicators rcu: Add READ_ONCE() to rcu_data ->gpwrap rcu: Add *_ONCE() to rcu_data ->rcu_forced_tick rcu: Add *_ONCE() to rcu_node ->boost_kthread_status rcu: Remove dead code from rcu_segcblist_insert_pend_cbs() rcu: Add WRITE_ONCE() to rcu_state ->gp_start rcu: Fix rcu_barrier_callback() race condition rcu: Don't flag non-starting GPs before GP kthread is running rcu: Optimize and protect atomic_cmpxchg() loop rcu: Tighten rcu_lockdep_assert_cblist_protected() check rcu: Make nocb_gp_wait() double-check unexpected-callback warning locktorture: Print ratio of acquisitions, not failures locktorture: Allow CPU-hotplug to be disabled via --bootargs locktorture: Use private random-number generators locktorture: Forgive apparent unfairness if CPU hotplug rcu: Clear ->core_needs_qs at GP end or self-reported QS rcu: React to callback overload by aggressively seeking quiescent states rcu: React to callback overload by boosting RCU readers rcu: Update __call_rcu() comments rcu-tasks: *_ONCE() for rcu_tasks_cbs_head srcu: Fix __call_srcu()/process_srcu() datarace srcu: Fix __call_srcu()/srcu_get_delay() datarace srcu: Fix process_srcu()/srcu_batches_completed() datarace srcu: Hold srcu_struct ->lock when updating ->srcu_gp_seq rcutorture: Suppress forward-progress complaints during early boot torture: Make results-directory date format completion-friendly rcutorture: Refrain from callback flooding during boot torture: Forgive -EBUSY from boottime CPU-hotplug operations rcutorture: Allow boottime stall warnings to be suppressed rcutorture: Suppress boottime bad-sequence warnings torture: Allow disabling of boottime CPU-hotplug torture operations rcutorture: Add 100-CPU configuration rcutorture: Summarize summary of build and run results rcutorture: Make kvm-find-errors.sh abort on bad directory rcutorture: Fix rcu_torture_one_read()/rcu_torture_writer() data race rcutorture: Fix stray access to rcu_fwd_cb_nodelay rcutorture: Add READ_ONCE() to rcu_torture_count and rcu_torture_batch rcutorture: Annotation lockless accesses to rcu_torture_current rcutorture: Make rcu_torture_barrier_cbs() post from corresponding CPU rcutorture: Manually clean up after rcu_barrier() failure rcutorture: Set KCSAN Kconfig options to detect more data races doc: Add rcutorture scripting to torture.txt rcu: Mark rcu_state.gp_seq to detect concurrent writes rcu: Make rcu_barrier() account for offline no-CBs CPUs
SeongJae Park (8): rcu: Fix typos in file-header comments doc/RCU/Design: Remove remaining HTML tags in ReST files doc/RCU/listRCU: Fix typos in a example code snippets doc/RCU/listRCU: Update example function name doc/RCU/rcu: Use ':ref:' for links to other docs doc/RCU/rcu: Use absolute paths for non-rst files doc/RCU/rcu: Use https instead of http if possible Documentation/memory-barriers: Fix typos
Uladzislau Rezki (Sony) (2): rcu: Support kfree_bulk() interface in kfree_rcu() rcu: Add a trace event for kfree_rcu() use of kfree_bulk()
.../Memory-Ordering/Tree-RCU-Memory-Ordering.rst | 8 +- Documentation/RCU/listRCU.rst | 281 ++++++++++--- Documentation/RCU/rcu.rst | 18 +- Documentation/RCU/torture.txt | 147 ++++++- Documentation/admin-guide/kernel-parameters.txt | 19 + Documentation/memory-barriers.txt | 8 +- fs/nfs/dir.c | 2 +- include/linux/rculist.h | 4 +- include/linux/rcutiny.h | 1 + include/linux/rcutree.h | 1 + include/linux/timer.h | 2 +- include/trace/events/rcu.h | 29 ++ kernel/locking/locktorture.c | 15 +- kernel/locking/rtmutex.c | 2 +- kernel/rcu/Makefile | 4 + kernel/rcu/rcu.h | 23 +- kernel/rcu/rcu_segcblist.c | 4 +- kernel/rcu/rcuperf.c | 14 +- kernel/rcu/rcutorture.c | 67 ++- kernel/rcu/srcutree.c | 18 +- kernel/rcu/tree.c | 452 +++++++++++++++------ kernel/rcu/tree.h | 4 + kernel/rcu/tree_exp.h | 13 +- kernel/rcu/tree_plugin.h | 25 +- kernel/rcu/tree_stall.h | 41 +- kernel/rcu/update.c | 28 +- kernel/time/timer.c | 7 +- kernel/torture.c | 29 +- .../testing/selftests/rcutorture/bin/functions.sh | 2 +- .../selftests/rcutorture/bin/kvm-find-errors.sh | 2 + .../selftests/rcutorture/bin/kvm-recheck.sh | 17 +- tools/testing/selftests/rcutorture/bin/kvm.sh | 2 +- .../selftests/rcutorture/configs/rcu/CFcommon | 2 + .../selftests/rcutorture/configs/rcu/TREE10 | 18 + 34 files changed, 1015 insertions(+), 294 deletions(-) create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TREE10
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