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>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Valentin Schneider <Valentin.Schneider@arm.com>,
Peter Zijlstra <peterz@infradead.org>,
Uladzislau Rezki <urezki@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Valentin Schneider <valentin.schneider@arm.com>,
Boqun Feng <boqun.feng@gmail.com>,
Neeraj Upadhyay <neeraju@codeaurora.org>,
Josh Triplett <josh@joshtriplett.org>,
Joel Fernandes <joel@joelfernandes.org>,
rcu@vger.kernel.org
Subject: [PATCH 00/11] rcu: Make rcu_core() safe in PREEMPT_RT with NOCB + a few other fixes v2
Date: Mon, 11 Oct 2021 16:51:29 +0200 [thread overview]
Message-ID: <20211011145140.359412-1-frederic@kernel.org> (raw)
Hi,
No code change in this v2, only changelogs:
* Add tags from Valentin and Sebastian
* Remove last reference to SEGCBLIST_SOFTIRQ_ONLY (thanks Valentin)
* Rewrite changelog for "rcu/nocb: Check a stable offloaded state to manipulate qlen_last_fqs_check"
after off-list debates with Paul.
* Remove the scenario with softirq interrupting rcuc on
"rcu/nocb: Limit number of softirq callbacks only on softirq" as it's
probably not possible (thanks Valentin).
* Remove the scenario with task spent scheduling out accounted on tlimit
as it's not possible (thanks Valentin)
(see "rcu: Apply callbacks processing time limit only on softirq")
* Fixed changelog of
"rcu/nocb: Don't invoke local rcu core on callback overload from nocb kthread"
(thanks Sebastian).
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
rcu/rt-v2
HEAD: 2c9349986d5f70a555195139665841cd98e9aba4
Thanks,
Frederic
---
Frederic Weisbecker (10):
rcu/nocb: Make local rcu_nocb_lock_irqsave() safe against concurrent deoffloading
rcu/nocb: Prepare state machine for a new step
rcu/nocb: Invoke rcu_core() at the start of deoffloading
rcu/nocb: Make rcu_core() callbacks acceleration (de-)offloading safe
rcu/nocb: Check a stable offloaded state to manipulate qlen_last_fqs_check
rcu/nocb: Use appropriate rcu_nocb_lock_irqsave()
rcu/nocb: Limit number of softirq callbacks only on softirq
rcu: Fix callbacks processing time limit retaining cond_resched()
rcu: Apply callbacks processing time limit only on softirq
rcu/nocb: Don't invoke local rcu core on callback overload from nocb kthread
Thomas Gleixner (1):
rcu/nocb: Make rcu_core() callbacks acceleration preempt-safe
include/linux/rcu_segcblist.h | 51 ++++++++++++++++++-------
kernel/rcu/rcu_segcblist.c | 10 ++---
kernel/rcu/rcu_segcblist.h | 12 +++---
kernel/rcu/tree.c | 87 +++++++++++++++++++++++++++++--------------
kernel/rcu/tree.h | 16 +++++---
kernel/rcu/tree_nocb.h | 29 ++++++++++++---
6 files changed, 141 insertions(+), 64 deletions(-)
next reply other threads:[~2021-10-11 14:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-11 14:51 Frederic Weisbecker [this message]
2021-10-11 14:51 ` [PATCH 01/11] rcu/nocb: Make local rcu_nocb_lock_irqsave() safe against concurrent deoffloading Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 02/11] rcu/nocb: Prepare state machine for a new step Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 03/11] rcu/nocb: Invoke rcu_core() at the start of deoffloading Frederic Weisbecker
2021-10-13 16:07 ` Boqun Feng
2021-10-14 11:07 ` Frederic Weisbecker
2021-10-14 11:42 ` Valentin Schneider
2021-10-14 13:57 ` Boqun Feng
2021-10-11 14:51 ` [PATCH 04/11] rcu/nocb: Make rcu_core() callbacks acceleration preempt-safe Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 05/11] rcu/nocb: Make rcu_core() callbacks acceleration (de-)offloading safe Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 06/11] rcu/nocb: Check a stable offloaded state to manipulate qlen_last_fqs_check Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 07/11] rcu/nocb: Use appropriate rcu_nocb_lock_irqsave() Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 08/11] rcu/nocb: Limit number of softirq callbacks only on softirq Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 09/11] rcu: Fix callbacks processing time limit retaining cond_resched() Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 10/11] rcu: Apply callbacks processing time limit only on softirq Frederic Weisbecker
2021-10-11 14:51 ` [PATCH 11/11] rcu/nocb: Don't invoke local rcu core on callback overload from nocb kthread Frederic Weisbecker
2021-10-13 0:32 ` [PATCH 00/11] rcu: Make rcu_core() safe in PREEMPT_RT with NOCB + a few other fixes v2 Paul E. McKenney
2021-10-13 3:28 ` Paul E. McKenney
2021-10-13 10:01 ` Frederic Weisbecker
2021-10-13 11:43 ` Frederic Weisbecker
2021-10-13 16:27 ` Paul E. McKenney
2021-10-14 10:43 ` Frederic Weisbecker
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