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Message-ID: <20220620224455.GA3840881@paulmck-ThinkPad-P17-Gen-1>
Date: Mon, 20 Jun 2022 15:44:55 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel-team@...com,
rostedt@...dmis.org
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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