[PATCH tip/core/rcu 0/10] No-CBs CPU updates for v5.14

From: Paul E. McKenney
Date: Tue May 11 2021 - 19:02:47 EST


Hello!

This series continues work towards runtime switching of CPUs between
offloaded and not, including a number of cleanups and consolidations:

1. Use the rcuog CPU's ->nocb_timer, courtesy of Frederic Weisbecker.

2. Revert "timer: Add timer_curr_running()", courtesy of Frederic
Weisbecker.

3. Directly call __wake_nocb_gp() from bypass timer, courtesy of
Frederic Weisbecker.

4. Allow de-offloading rdp leader, courtesy of Frederic Weisbecker.

5. Cancel nocb_timer upon nocb_gp wakeup, courtesy of Frederic
Weisbecker.

6. Delete bypass_timer upon nocb_gp wakeup, courtesy of Frederic
Weisbecker.

7. Only cancel nocb timer if not polling, courtesy of Frederic
Weisbecker.

8. Prepare for fine-grained deferred wakeup, courtesy of Frederic
Weisbecker.

9. Unify timers, courtesy of Frederic Weisbecker.

10. Fix various typos in comments, courtesy of Ingo Molnar.

Thanx, Paul

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

b/include/linux/timer.h | 2
b/include/trace/events/rcu.h | 1
b/kernel/rcu/srcutree.c | 4
b/kernel/rcu/sync.c | 4
b/kernel/rcu/tasks.h | 8
b/kernel/rcu/tree.c | 2
b/kernel/rcu/tree.h | 1
b/kernel/rcu/tree_plugin.h | 140 +++++-----
b/kernel/time/timer.c | 14 -
b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h | 2
kernel/rcu/tree.c | 4
kernel/rcu/tree.h | 10
kernel/rcu/tree_plugin.h | 140 ++++------
13 files changed, 160 insertions(+), 172 deletions(-)