[0/18] RCU torture-test updates for v6.14

Message

Paul E. McKenney Dec. 12, 2024, 6:49 p.m. UTC

Hello!

This series contains rcutorture updates:

1.	Add dowarn argument to torture_sched_setaffinity().

2.	Add random real-time preemption.

3.	Make the TREE03 scenario do preemption.

4.	Decorate failing reader segments with CPU ID.

5.	Use finer-grained timeouts for rcu_torture_writer() polling.

6.	Add ->cond_sync_exp_full function to rcu_ops structure.

7.	Check preemption for failing reader.

8.	Decorate failing reader segments with last CPU ID.

9.	Add full read-side contexts to "busted" torture type.

10.	Pretty-print rcutorture reader segments.

11.	Make rcutorture_one_extend() check reader state.

12.	Ignore attempts to test preemption and forward progress.

13.	Add documentation for recent conditional and polled APIs.

14.	Add parameters to control polled/conditional wait interval.

15.	Add preempt_count() to rcutorture_one_extend_check() diagnostics.

16.	Read CPU ID for decoration protected by both reader types.

17.	Add per-reader-segment preemption diagnostics.

18.	Use symbols for SRCU reader flavors.

						Thanx, Paul

------------------------------------------------------------------------

 Documentation/admin-guide/kernel-parameters.txt              |   74 ++
 b/Documentation/admin-guide/kernel-parameters.txt            |   16 
 b/include/linux/rcupdate_wait.h                              |   11 
 b/include/linux/srcu.h                                       |    6 
 b/include/linux/srcutree.h                                   |    6 
 b/include/linux/torture.h                                    |    2 
 b/kernel/locking/locktorture.c                               |    6 
 b/kernel/rcu/Kconfig.debug                                   |   15 
 b/kernel/rcu/rcutorture.c                                    |    2 
 b/kernel/rcu/update.c                                        |    4 
 b/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot |    1 
 kernel/rcu/Kconfig.debug                                     |   16 
 kernel/rcu/rcutorture.c                                      |  279 ++++++++---
 13 files changed, 363 insertions(+), 75 deletions(-)