From: Frederic Weisbecker <frederic@kernel.org>
To: "Paul E . McKenney" <paulmck@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Marco Elver <elver@google.com>,
Neeraj Upadhyay <quic_neeraju@quicinc.com>,
Valentin Schneider <valentin.schneider@arm.com>,
Boqun Feng <boqun.feng@gmail.com>,
Uladzislau Rezki <uladzislau.rezki@sony.com>,
Joel Fernandes <joel@joelfernandes.org>
Subject: [PATCH 0/3] rcu: synchronize_rcu[_expedited]() related fixes
Date: Mon, 14 Mar 2022 14:37:35 +0100 [thread overview]
Message-ID: <20220314133738.269522-1-frederic@kernel.org> (raw)
A few fixes especially for expedited GP polling causing a stall on TREE07,
as reported by Paul.
We may still want to optimize start_poll_synchronize_rcu_expedited() on
UP-no-preempt but I think Paul may be implying this while doing other
fixes.
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
rcu/dev
HEAD: 6e5fd7e614fd5c8f0fffeaa140b7ea697bfeb096
Thanks,
Frederic
---
Frederic Weisbecker (2):
rcu: Fix expedited GP polling against UP/no-preempt environment
rcu: Fix preemption mode check on synchronize_rcu[_expedited]()
Valentin Schneider (1):
preempt/dynamic: Introduce preempt mode accessors
include/linux/sched.h | 16 +++++++++++++++
kernel/rcu/tree.c | 2 +-
kernel/rcu/tree_exp.h | 57 +++++++++++++++++++++++++++++++--------------------
kernel/sched/core.c | 11 ++++++++++
4 files changed, 63 insertions(+), 23 deletions(-)
next reply other threads:[~2022-03-14 13:38 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-14 13:37 Frederic Weisbecker [this message]
2022-03-14 13:37 ` [PATCH 1/3] rcu: Fix expedited GP polling against UP/no-preempt environment Frederic Weisbecker
2022-03-14 13:37 ` [PATCH 2/3] preempt/dynamic: Introduce preempt mode accessors Frederic Weisbecker
2022-03-14 14:44 ` Marco Elver
2022-03-14 20:06 ` Paul E. McKenney
2022-03-14 20:34 ` Marco Elver
2022-03-14 21:53 ` Paul E. McKenney
2022-03-14 22:50 ` Frederic Weisbecker
2022-03-15 10:48 ` Peter Zijlstra
2022-03-15 15:11 ` Paul E. McKenney
2022-03-14 13:37 ` [PATCH 3/3] rcu: Fix preemption mode check on synchronize_rcu[_expedited]() Frederic Weisbecker
2022-03-14 20:26 ` [PATCH 0/3] rcu: synchronize_rcu[_expedited]() related fixes Paul E. McKenney
2022-03-14 22:35 ` Paul E. McKenney
2022-03-15 15:52 ` Frederic Weisbecker
2022-03-15 16:53 ` Paul E. McKenney
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