It's a v2 of the previous set
(https://lore.kernel.org/lkml/20210128171222.131380-1-frede...@kernel.org/)
minus the patches already applied in rcu/dev. And this is based on
latest rcu/dev.
Changelog since v1:
"rcu/nocb: Fix potential missed nocb_timer rearm"
* Remove nocb_defer_wakeup reset from do_nocb_deferred_wakeup_common()
(paulmck)
* Only reset/del if the timer is actually armed
* Add secondary potential cause for missed rearm in the changelog
"rcu/nocb: Disable bypass when CPU isn't completely offloaded"
* Improve comments on state machine (paulmck)
* Add comment (a full quote from Paul) explaining why early flush is
enough (paulmck)
* Move sanity check to the very end of deoffloading (paulmck)
* Clarify some comments about nocb locking on de-offloading (paulmck)
"rcu/nocb: Remove stale comment above rcu_segcblist_offload()"
* New patch, reported by (paulmck)
"rcu/nocb: Merge nocb_timer to the rdp leader"
* Remove rcu_running_nocb_timer() and its use in rcu_rdp_is_offloaded()
debugging since the timer doesn't refer to any rdp offloading anymore.
* Only delete nocb_timer when armed, in nocb_gp_wait()
* Clarify some comments about nocb locking on de-offloading (paulmck)
* Remove stale code "re-enabling" nocb timer on offloading. Not
necessary
anymore and even buggy.
"timer: Revert "timer: Add timer_curr_running()""
* New patch
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
rcu/dev-v2
HEAD: 925ee3076eb694db893e2c6664d90ad8fb9cb6e5
Thanks,
Frederic
---
Frederic Weisbecker (13):
rcu/nocb: Fix potential missed nocb_timer rearm
rcu/nocb: Disable bypass when CPU isn't completely offloaded
rcu/nocb: Remove stale comment above rcu_segcblist_offload()
rcu/nocb: Move trace_rcu_nocb_wake() calls outside nocb_lock when possible
rcu/nocb: Merge nocb_timer to the rdp leader
timer: Revert "timer: Add timer_curr_running()"
rcu/nocb: Directly call __wake_nocb_gp() from bypass timer
rcu/nocb: Allow de-offloading rdp leader
rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup
rcu/nocb: Delete bypass_timer upon nocb_gp wakeup
rcu/nocb: Only cancel nocb timer if not polling
rcu/nocb: Prepare for finegrained deferred wakeup
rcu/nocb: Unify timers
include/linux/rcu_segcblist.h | 7 +-
include/linux/timer.h | 2 -
include/trace/events/rcu.h | 1 +
kernel/rcu/rcu_segcblist.c | 3 +-
kernel/rcu/tree.c | 2 +-
kernel/rcu/tree.h | 9 +-
kernel/rcu/tree_plugin.h | 233 +++++++++++++++++++++++-------------------
kernel/time/timer.c | 14 ---
8 files changed, 141 insertions(+), 130 deletions(-)
