[PATCH 0/6] rcu/nocb: Last prep work before cpuset interface v2

From: Frederic Weisbecker
Date: Mon Nov 22 2021 - 19:37:21 EST

Changes since v1 after Paul's reviews:

* Clarify why the DEL vs ADD possible race on rdp group list is ok [1/6]
* Update kernel parameters documentation [5/6]
* Only create rcuo[sp] kthreads for CPUs that have ever come online [4/6]
* Consider nohz_full= on changelogs


HEAD: da51363e5ddf54d6ce9c2cfbab946f8914519290


Frederic Weisbecker (6):
rcu/nocb: Remove rdp from nocb list when de-offloaded
rcu/nocb: Prepare nocb_cb_wait() to start with a non-offloaded rdp
rcu/nocb: Optimize kthreads and rdp initialization
rcu/nocb: Create kthreads on all CPUs if "rcu_nocb=" or "nohz_full=" are passed
rcu/nocb: Allow empty "rcu_nocbs" kernel parameter
rcu/nocb: Merge rcu_spawn_cpu_nocb_kthread() and rcu_spawn_one_nocb_kthread()

Documentation/admin-guide/kernel-parameters.txt | 28 ++++--
kernel/rcu/tree.h | 7 +-
kernel/rcu/tree_nocb.h | 119 +++++++++++++++---------
3 files changed, 96 insertions(+), 58 deletions(-)