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>,
rcu <rcu@vger.kernel.org>, Uladzislau Rezki <urezki@gmail.com>,
Neeraj Upadhyay <quic_neeraju@quicinc.com>,
Boqun Feng <boqun.feng@gmail.com>,
Joel Fernandes <joel@joelfernandes.org>
Subject: [PATCH 0/4] rcu/nocb: Shrinker related boring fixes
Date: Wed, 22 Mar 2023 20:44:52 +0100 [thread overview]
Message-ID: <20230322194456.2331527-1-frederic@kernel.org> (raw)
Hi,
Just a couple of boring fixes related to the shrinker.
1/4: is related to (de-)offloading so the issue only concerns rcutorture
right now (which doesn't seem to test lazy so hardly possible to trigger).
2/4: fix ignored flush, making the shrinker more efficient but nothing
critical.
3/4: optimization
4/4: optimization
As such none of these patches carry a "Fixes:" because none fix an actual
regression. Nothing worth backportng.
Frederic Weisbecker (4):
rcu/nocb: Protect lazy shrinker against concurrent (de-)offloading
rcu/nocb: Fix shrinker race against callback enqueuer
rcu/nocb: Recheck lazy callbacks under the ->nocb_lock from shrinker
rcu/nocb: Make shrinker to iterate only NOCB CPUs
kernel/rcu/tree_nocb.h | 43 +++++++++++++++++++++++++++++++++++++-----
1 file changed, 38 insertions(+), 5 deletions(-)
--
2.34.1
next reply other threads:[~2023-03-22 19:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-22 19:44 Frederic Weisbecker [this message]
2023-03-22 19:44 ` [PATCH 1/4] rcu/nocb: Protect lazy shrinker against concurrent (de-)offloading Frederic Weisbecker
2023-03-22 23:18 ` Paul E. McKenney
2023-03-24 0:55 ` Joel Fernandes
2023-03-24 1:06 ` Paul E. McKenney
2023-03-24 22:09 ` Frederic Weisbecker
2023-03-24 22:51 ` Paul E. McKenney
2023-03-26 20:01 ` Frederic Weisbecker
2023-03-26 21:45 ` Paul E. McKenney
2023-03-29 16:07 ` Frederic Weisbecker
2023-03-29 20:45 ` Paul E. McKenney
2023-03-22 19:44 ` [PATCH 2/4] rcu/nocb: Fix shrinker race against callback enqueuer Frederic Weisbecker
2023-03-22 23:19 ` Paul E. McKenney
2023-03-22 19:44 ` [PATCH 3/4] rcu/nocb: Recheck lazy callbacks under the ->nocb_lock from shrinker Frederic Weisbecker
2023-03-22 23:21 ` Paul E. McKenney
2023-03-22 19:44 ` [PATCH 4/4] rcu/nocb: Make shrinker to iterate only NOCB CPUs Frederic Weisbecker
2023-03-24 0:41 ` Joel Fernandes
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