[PATCH tip/core/rcu 0/12] Miscellaneous RCU fixes for 4.8

[Paul E. McKenney]

Hello!

This series contains miscellaneous fixes:

1.	Fix outdated rcu_scheduler_active comment.

2.	Fix outdated hotplug-exclusion comment in rcu_gp_init().

3.	Remove some superfluous lines, courtesy of Peter Zijlstra.

4.	Move expedited code from tree.c to tree_exp.h.

5.	Move expedited code from tree_plugin.h to tree_exp.h.

6.	Document RCU_NONIDLE() restrictions in comment header.

7.	No ordering for rcu_assign_pointer() of NULL.

8.	Disable TASKS_RCU for usermode Linux in preparation for
	making call_rcu_tasks() tolerate being invoked with interrupts
	disabled.

9.	Make call_rcu_tasks() tolerate first call with irqs disabled.

10.	Fix a typo in a comment.

11.	Panic on RCU Stall at user's option, courtesy of Daniel Bristot
	de Oliveira.

12.	Correctly handle sparse possible cpus, courtesy of Mark Rutland.

							Thanx, Paul

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

 Documentation/sysctl/kernel.txt |   12 
 include/linux/kernel.h          |    1 
 include/linux/rcupdate.h        |   23 +
 init/Kconfig                    |    1 
 kernel/rcu/rcutorture.c         |    2 
 kernel/rcu/tree.c               |  586 +---------------------------------
 kernel/rcu/tree.h               |   15 
 kernel/rcu/tree_exp.h           |  674 +++++++++++++++++++++++++++++++++++++++-
 kernel/rcu/tree_plugin.h        |   93 -----
 kernel/rcu/update.c             |    7 
 kernel/sched/fair.c             |    2 
 kernel/sysctl.c                 |   11 
 12 files changed, 757 insertions(+), 670 deletions(-)