From: Frederic Weisbecker <frederic@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>,
Joel Fernandes <joelagnelf@nvidia.com>,
Neeraj Upadhyay <neeraj.upadhyay@amd.com>,
"Paul E . McKenney" <paulmck@kernel.org>,
Uladzislau Rezki <urezki@gmail.com>,
Zqiang <qiang.zhang1211@gmail.com>, rcu <rcu@vger.kernel.org>
Subject: [PATCH 0/5 v2] rcu/exp updates
Date: Fri, 14 Mar 2025 15:36:37 +0100 [thread overview]
Message-ID: <20250314143642.72554-1-frederic@kernel.org> (raw)
Hi,
Changes in this version:
* [1/5] Explain why it's fine if a task unblocks between
sync_exp_reset_tree() and __sync_rcu_exp_select_node_cpus(), per Paul's
suggestion.
* [3/5] Add Paul's reviewed-by tag
* [4/5] and [5/5] are new patches after discussion.
Frederic Weisbecker (5):
rcu/exp: Protect against early QS report
rcu/exp: Remove confusing needless full barrier on task unblock
rcu/exp: Remove needless CPU up quiescent state report
rcu/exp: Warn on QS requested on dying CPU
rcu/exp: Warn on CPU lagging for too long within hotplug IPI's
blindspot
kernel/rcu/tree.c | 8 +++--
kernel/rcu/tree_exp.h | 69 +++++++++++-----------------------------
kernel/rcu/tree_plugin.h | 1 -
3 files changed, 25 insertions(+), 53 deletions(-)
--
2.48.1
next reply other threads:[~2025-03-14 14:36 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-14 14:36 Frederic Weisbecker [this message]
2025-03-14 14:36 ` [PATCH 1/5] rcu/exp: Protect against early QS report Frederic Weisbecker
2025-03-15 23:59 ` Joel Fernandes
2025-03-16 11:07 ` Frederic Weisbecker
2025-03-16 14:23 ` Joel Fernandes
2025-03-16 22:24 ` Frederic Weisbecker
2025-03-18 17:17 ` Paul E. McKenney
2025-03-19 8:58 ` Frederic Weisbecker
2025-03-14 14:36 ` [PATCH 2/5] rcu/exp: Remove confusing needless full barrier on task unblock Frederic Weisbecker
2025-03-18 17:18 ` Paul E. McKenney
2025-03-19 9:01 ` Frederic Weisbecker
2025-03-19 14:03 ` Paul E. McKenney
2025-03-14 14:36 ` [PATCH 3/5] rcu/exp: Remove needless CPU up quiescent state report Frederic Weisbecker
2025-03-14 14:36 ` [PATCH 4/5] rcu/exp: Warn on QS requested on dying CPU Frederic Weisbecker
2025-03-18 17:21 ` Paul E. McKenney
2025-03-19 9:14 ` Frederic Weisbecker
2025-03-14 14:36 ` [PATCH 5/5] rcu/exp: Warn on CPU lagging for too long within hotplug IPI's blindspot Frederic Weisbecker
2025-03-18 17:22 ` Paul E. McKenney
2025-03-19 9:42 ` Frederic Weisbecker
2025-03-19 14:04 ` Paul E. McKenney
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