[PATCH tip/core/rcu 0/10] Miscellaneous fixes for v5.13

From: Paul E. McKenney
Date: Wed Mar 03 2021 - 19:14:20 EST


Hello!

This series contains miscellaneous fixes:

1. Remove superfluous rdp fetch, courtesy of Frederic Weisbecker.

2. Fix CPU-offline trace in rcutree_dying_cpu, courtesy of Neeraj
Upadhyay.

3. Remove spurious instrumentation_end() in rcu_nmi_enter(),
courtesy of Zhouyi Zhou.

4. Replace reference to atomic_ops.rst, courtesy of Akira Yokosawa.

5. Fix kfree_rcu() docbook errors, courtesy of Mauro Carvalho Chehab.

6. Don't try waking ksoftirqd before it has been spawned.

7. Prevent dyntick-idle until ksoftirqd has been spawned.

8. Correctly spell Stephen Hemminger's name.

9. Add explicit barrier() to __rcu_read_unlock().

10. Add a trace event for RCU CPU stall warnings, courtesy of
Sangmoon Kim.

Thanx, Paul

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

Documentation/RCU/RTFP.txt | 2 +-
include/linux/rculist_nulls.h | 2 +-
include/linux/rcupdate.h | 2 +-
include/trace/events/rcu.h | 28 ++++++++++++++++++++++++++++
kernel/rcu/tree.c | 4 +---
kernel/rcu/tree_exp.h | 1 +
kernel/rcu/tree_plugin.h | 14 +++++++++++++-
kernel/rcu/tree_stall.h | 2 ++
kernel/softirq.c | 2 +-
9 files changed, 49 insertions(+), 8 deletions(-)