linux-kernel - [PATCH rcu 0/14] Miscellaneous fixes for v5.16

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Date:   Wed, 15 Sep 2021 16:33:05 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, akpm@...ux-foundation.org,
        mathieu.desnoyers@...icios.com, josh@...htriplett.org,
        tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
        dhowells@...hat.com, edumazet@...gle.com, fweisbec@...il.com,
        oleg@...hat.com, joel@...lfernandes.org
Subject: [PATCH rcu 0/14] Miscellaneous fixes for v5.16

Hello!

This series provides miscellaneous fixes:

1.	Mark accesses to rcu_state.n_force_qs.

2.	rcu-nocb: Fix a couple of tree_nocb code-style nits.

3.	Eliminate rcu_implicit_dynticks_qs() local variable rnhqp.

4.	Eliminate rcu_implicit_dynticks_qs() local variable ruqp.

5.	Add another stall-warning root cause in stallwarn.rst.

6.	Fix undefined Kconfig macros, courtesy of Zhouyi Zhou.

7.	Comment rcu_gp_init() code waiting for CPU-hotplug operations.

8.	Move rcu_dynticks_eqs_online() to rcu_cpu_starting().

9.	Simplify rcu_report_dead() call to rcu_report_exp_rdp().

10.	Make rcutree_dying_cpu() use its "cpu" parameter.

11.	Make rcu_normal_after_boot writable again, courtesy of Juri Lelli.

12.	Make rcu update module parameters world-readable, courtesy of
	Juri Lelli.

13.	Fix existing exp request check in sync_sched_exp_online_cleanup(),
	courtesy of Neeraj Upadhyay.

14.	Avoid unneeded function call in rcu_read_unlock(), courtesy of
	Waiman Long.

						Thanx, Paul

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

 b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.rst |   69 ++++------
 b/Documentation/RCU/stallwarn.rst                                       |   10 +
 b/arch/sh/configs/sdk7786_defconfig                                     |    1 
 b/arch/xtensa/configs/nommu_kc705_defconfig                             |    1 
 b/include/linux/rcupdate.h                                              |    3 
 b/kernel/rcu/rcutorture.c                                               |    2 
 b/kernel/rcu/tree.c                                                     |   10 -
 b/kernel/rcu/tree_exp.h                                                 |    1 
 b/kernel/rcu/tree_nocb.h                                                |    2 
 b/kernel/rcu/tree_plugin.h                                              |    3 
 b/kernel/rcu/update.c                                                   |    2 
 kernel/rcu/tree.c                                                       |   24 +--
 kernel/rcu/tree_exp.h                                                   |    2 
 kernel/rcu/update.c                                                     |    6 
 14 files changed, 67 insertions(+), 69 deletions(-)