[0/8] Miscellaneous fixes for v6.5

Message

Paul E. McKenney May 10, 2023, 4:58 p.m. UTC

Hello!

This series has miscellaneous fixes:

1.	Remove extraneous parentheses from srcu_read_lock() etc..

2.	Remove RCU_NONIDLE(), courtesy of Peter Zijlstra.

3.	Check callback-invocation time limit for rcuc kthreads.

4.	Employ jiffies-based backstop to callback time limit.

5.	Mark additional concurrent load from ->cpu_no_qs.b.exp.

6.	Mark rcu_cpu_kthread() accesses to ->rcu_cpu_has_work.

7.	Make rcu_cpu_starting() rely on interrupts being disabled.

8.	rcu-tasks: Stop rcu_tasks_invoke_cbs() from using never-onlined
	CPUs.  This would normally be in the rcu-tasks category, but
	its change to RCU's CPU-hotplug logic results in a source-code
	dependency that puts it here in order to avoid a merge conflict.

						Thanx, Paul

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

 b/Documentation/RCU/Design/Requirements/Requirements.rst |   36 ---------
 b/Documentation/RCU/whatisRCU.rst                        |    1 
 b/include/linux/rcupdate.h                               |   25 ------
 b/include/linux/srcu.h                                   |    8 +-
 b/kernel/rcu/Kconfig                                     |   18 ++++
 b/kernel/rcu/rcu.h                                       |    6 +
 b/kernel/rcu/tasks.h                                     |    7 +
 b/kernel/rcu/tree.c                                      |   28 +++++--
 b/kernel/rcu/tree_exp.h                                  |    2 
 b/kernel/rcu/tree_plugin.h                               |    4 -
 kernel/rcu/tree.c                                        |   55 ++++++++++-----
 11 files changed, 95 insertions(+), 95 deletions(-)