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Subject[PATCH v3 0/7] Reduce synchronize_rcu() latency(V3)
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This is V3.

V2 -> V3:
- use dummy wait node to eliminate cache misses during a full llist
scan to obtain a tail node;
- add CONFIG_RCU_SR_NORMAL_DEBUG_GP Kconfig for a GP incomplete debug;
- move synchronize_rcu()'s main control data under the rcu_state struct;
- add rcutree.rcu_normal_wake_from_gp parameter description to the
kernel-parameters.txt file;
- split functionality into several patches.

V2: https://lore.kernel.org/all/20231030131254.488186-1-urezki@gmail.com/T/
V1: https://lore.kernel.org/lkml/20231025140915.590390-1-urezki@gmail.com/T/

Neeraj Upadhyay (1):
rcu: Improve handling of synchronize_rcu() users

Uladzislau Rezki (Sony) (6):
rcu: Reduce synchronize_rcu() latency
rcu: Add a trace event for synchronize_rcu_normal()
doc: Add rcutree.rcu_normal_wake_from_gp to kernel-parameters.txt
rcu: Support direct wake-up of synchronize_rcu() users
rcu: Move sync related data to rcu_state structure
rcu: Add CONFIG_RCU_SR_NORMAL_DEBUG_GP

.../admin-guide/kernel-parameters.txt | 14 +
include/trace/events/rcu.h | 27 ++
kernel/rcu/Kconfig.debug | 12 +
kernel/rcu/tree.c | 354 +++++++++++++++++-
kernel/rcu/tree.h | 19 +
kernel/rcu/tree_exp.h | 2 +-
6 files changed, 426 insertions(+), 2 deletions(-)

--
2.39.2

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