On Sun, Mar 13, 2022 at 08:28:23PM -0700, Paul E. McKenney wrote: > Hello, Linus, > > Please pull the latest RCU git tree from: OK, I was apparently unable to distinguish v5.17-rc8 from v5.18 yesterday evening. :-/ I will resent both pull requests next week, and please accept my apologies for the bother. Thanx, Paul > The following changes since commit da123016ca8cb5697366c0b2dd55059b976e67e4: > > rcu-tasks: Fix computation of CPU-to-list shift counts (2022-01-26 13:04:05 -0800) tags/rcu-urgent.2022.01.26a > > are available in the Git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tags/rcu.2022.03.13a > > # HEAD: d5578190bed3d110203e3b6b29c5a7a39d51c6c0 Merge branches 'exp.2022.02.24a', 'fixes.2022.02.14a', 'rcu_barrier.2022.02.08a', 'rcu-tasks.2022.02.08a', 'rt.2022.02.01b', 'torture.2022.02.01b' and 'torturescript.2022.02.08a' into HEAD (2022-02-24 09:38:46 -0800) > > RCU changes for this cycle were: > > exp.2022.02.24a: Contains a fix for idle detection from Neeraj Upadhyay > and missing access marking detected by KCSAN. > > fixes.2022.02.14a: Miscellaneous fixes. > > rcu_barrier.2022.02.08a: Reduces coupling between rcu_barrier() and > CPU-hotplug operations, so that rcu_barrier() no longer needs > to do cpus_read_lock(). This may also someday allow system > boot to bring CPUs online concurrently. > > rcu-tasks.2022.02.08a: Enable more aggressive movement to per-CPU > queueing when reacting to excessive lock contention due > to workloads placing heavy update-side stress on RCU tasks. > > rt.2022.02.01b: Improvements to RCU priority boosting, including > changes from Neeraj Upadhyay, Zqiang, and Alison Chaiken. > > torture.2022.02.01b: Various fixes improving test robustness and > debug information. > > torturescript.2022.02.08a: Add tests for SRCU size transitions, further > compress torture.sh build products, and improve debug output. > > ---------------------------------------------------------------- > Alison Chaiken (4): > rcu: Move kthread_prio bounds-check to a separate function > rcu: Make priority of grace-period thread consistent > rcu: Elevate priority of offloaded callback threads > rcu: Update documentation regarding kthread_prio cmdline parameter > > David Woodhouse (2): > rcu: Kill rnp->ofl_seq and use only rcu_state.ofl_lock for exclusion > rcu: Add mutex for rcu boost kthread spawning and affinity setting > > Ingo Molnar (2): > rcu: Uninline multi-use function: finish_rcuwait() > rcu: Remove __read_mostly annotations from rcu_scheduler_active externs > > Neeraj Upadhyay (3): > rcu/exp: Fix check for idle context in rcu_exp_handler > rcu/nocb: Handle concurrent nocb kthreads creation > rcu: Remove unused rcu_state.boost > > Paul E. McKenney (34): > rcu: Mark ->expmask access in synchronize_rcu_expedited_wait() > rcu: Mark accesses to boost_starttime > rcu: Don't deboost before reporting expedited quiescent state > rcutorture: Print message before invoking ->cb_barrier() > torture: Distinguish kthread stopping and being asked to stop > rcutorture: Increase visibility of forward-progress hangs > rcutorture: Make rcu_fwd_cb_nodelay be a counter > rcutorture: Add end-of-test check to rcu_torture_fwd_prog() loop > rcutorture: Fix rcu_fwd_mutex deadlock > torture: Wake up kthreads after storing task_struct pointer > rcutorture: Enable limited callback-flooding tests of SRCU > torture: Drop trailing ^M from console output > torture: Allow four-digit repetition numbers for --configs parameter > torture: Output per-failed-run summary lines from torture.sh > torture: Make kvm.sh summaries note runs having only KCSAN reports > torture: Indicate which torture.sh runs' bugs are all KCSAN reports > torture: Compress KCSAN as well as KASAN vmlinux files > torture: Make kvm-remote.sh try multiple times to download tarball > torture: Print only one summary line per run > torture: Make kvm-find-errors.sh notice missing vmlinux file > torture: Change KVM environment variable to RCUTORTURE > rcu: Refactor rcu_barrier() empty-list handling > rcu: Rework rcu_barrier() and callback-migration logic > rcu: Make rcu_barrier() no longer block CPU-hotplug operations > rcu: Create and use an rcu_rdp_cpu_online() > rcu-tasks: Use order_base_2() instead of ilog2() > rcu-tasks: Set ->percpu_enqueue_shift to zero upon contention > torture: Make torture.sh help message match reality > rcutorture: Test SRCU size transitions > rcutorture: Provide non-power-of-two Tasks RCU scenarios > MAINTAINERS: Add Frederic and Neeraj to their RCU files > rcu: Inline __call_rcu() into call_rcu() > rcu: Mark writes to the rcu_segcblist structure's ->flags field > Merge branches 'exp.2022.02.24a', 'fixes.2022.02.14a', 'rcu_barrier.2022.02.08a', 'rcu-tasks.2022.02.08a', 'rt.2022.02.01b', 'torture.2022.02.01b' and 'torturescript.2022.02.08a' into HEAD > > Uladzislau Rezki (Sony) (1): > rcu: Fix description of kvfree_rcu() > > Yury Norov (1): > rcu: Replace cpumask_weight with cpumask_empty where appropriate > > Zqiang (3): > rcu: Create per-cpu rcuc kthreads only when rcutree.use_softirq=0 > rcu: Add per-CPU rcuc task dumps to RCU CPU stall warnings > kasan: Record work creation stack trace with interrupts enabled > > Documentation/admin-guide/kernel-parameters.txt | 2 + > MAINTAINERS | 2 + > include/linux/rcupdate.h | 4 +- > include/linux/rcutree.h | 2 +- > include/linux/rcuwait.h | 6 +- > include/trace/events/rcu.h | 9 +- > kernel/rcu/rcu_segcblist.h | 4 +- > kernel/rcu/rcutorture.c | 41 ++- > kernel/rcu/tasks.h | 6 +- > kernel/rcu/tree.c | 328 ++++++++++++--------- > kernel/rcu/tree.h | 18 +- > kernel/rcu/tree_exp.h | 5 +- > kernel/rcu/tree_nocb.h | 18 +- > kernel/rcu/tree_plugin.h | 31 +- > kernel/rcu/tree_stall.h | 35 +++ > kernel/rcu/update.c | 7 + > kernel/torture.c | 6 +- > .../selftests/rcutorture/bin/console-badness.sh | 2 +- > .../testing/selftests/rcutorture/bin/kvm-again.sh | 4 +- > .../selftests/rcutorture/bin/kvm-check-branches.sh | 4 +- > .../selftests/rcutorture/bin/kvm-end-run-stats.sh | 4 +- > .../selftests/rcutorture/bin/kvm-find-errors.sh | 6 + > .../selftests/rcutorture/bin/kvm-recheck-rcu.sh | 2 +- > .../testing/selftests/rcutorture/bin/kvm-remote.sh | 25 +- > tools/testing/selftests/rcutorture/bin/kvm.sh | 16 +- > .../selftests/rcutorture/bin/parse-console.sh | 10 + > tools/testing/selftests/rcutorture/bin/torture.sh | 38 ++- > .../selftests/rcutorture/configs/rcu/RUDE01 | 2 +- > .../selftests/rcutorture/configs/rcu/SRCU-N.boot | 1 + > .../selftests/rcutorture/configs/rcu/SRCU-P.boot | 2 + > .../selftests/rcutorture/configs/rcu/TRACE01 | 2 +- > 31 files changed, 400 insertions(+), 242 deletions(-)
