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Subject[PATCH rcu 0/7] Callback-offload (nocb) updates for v5.20
Hello!

This series provides NOCB-CPU updates:

1. Add/del rdp to iterate from rcuog itself, courtesy of Frederic
Weisbecker.

2. Invert rcu_state.barrier_mutex VS hotplug lock locking order,
courtesy of Zqiang.

3. Fix NOCB kthreads spawn failure with rcu_nocb_rdp_deoffload()
direct call, courtesy of Zqiang.

4. Add an option to offload all CPUs on boot, courtesy of Joel
Fernandes.

5. Add nocb_cb_kthread check to rcu_is_callbacks_kthread(), courtesy
of Zqiang.

6. Add option to opt rcuo kthreads out of RT priority, courtesy of
"Uladzislau Rezki (Sony)".

7. Avoid polling when my_rdp->nocb_head_rdp list is empty, courtesy
of Zqiang.

Thanx, Paul

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

b/Documentation/admin-guide/kernel-parameters.txt | 6
b/kernel/rcu/Kconfig | 13 ++
b/kernel/rcu/tree.c | 4
b/kernel/rcu/tree.h | 1
b/kernel/rcu/tree_nocb.h | 138 +++++++++++-----------
b/kernel/rcu/tree_plugin.h | 33 +++--
kernel/rcu/Kconfig | 16 ++
kernel/rcu/tree.c | 6
kernel/rcu/tree.h | 2
kernel/rcu/tree_nocb.h | 130 ++++++++++++++++----
10 files changed, 236 insertions(+), 113 deletions(-)

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