From: Scott Wood <swood@redhat.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org,
"Paul E . McKenney" <paulmck@linux.ibm.com>,
Joel Fernandes <joel@joelfernandes.org>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Clark Williams <williams@redhat.com>
Subject: [PATCH RT v2 0/3] RCU fixes
Date: Wed, 21 Aug 2019 18:19:03 -0500 [thread overview]
Message-ID: <20190821231906.4224-1-swood@redhat.com> (raw)
This is a respin of the "Address rcutorture issues" patchset,
minus the actual rcutorture changes.
I still plan to implement detection of bad nesting scenarios, but it's
complicated by the need to distinguish (on a non-RT kernel) between
irq/preempt disabling that would and would not happen on an RT kernel
(which would also have the benefit of being able to detect nesting
regular spinlocks inside raw spinlocks on a non-RT debug kernel). In
the meantime I could send the rcutorture changes as a PREEMPT_RT only
patch, though the extent of the changes depends on whether my migrate
disable patchset is applied since it removes a restriction.
Scott Wood (3):
rcu: Acquire RCU lock when disabling BHs
sched: migrate_enable: Use sleeping_lock to indicate involuntary sleep
rcu: Disable use_softirq on PREEMPT_RT
include/linux/rcupdate.h | 4 ++++
include/linux/sched.h | 4 ++--
kernel/rcu/tree.c | 9 ++++++++-
kernel/rcu/tree_plugin.h | 2 +-
kernel/rcu/update.c | 4 ++++
kernel/sched/core.c | 8 ++++++++
kernel/softirq.c | 12 +++++++++---
7 files changed, 36 insertions(+), 7 deletions(-)
--
1.8.3.1
next reply other threads:[~2019-08-21 23:19 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-21 23:19 Scott Wood [this message]
2019-08-21 23:19 ` [PATCH RT v2 1/3] rcu: Acquire RCU lock when disabling BHs Scott Wood
2019-08-21 23:33 ` Paul E. McKenney
2019-08-22 13:39 ` Joel Fernandes
2019-08-22 15:27 ` Paul E. McKenney
2019-08-23 1:50 ` Joel Fernandes
2019-08-23 2:11 ` Paul E. McKenney
2019-08-23 3:23 ` Scott Wood
2019-08-23 12:30 ` Paul E. McKenney
2019-08-23 16:17 ` Sebastian Andrzej Siewior
2019-08-23 19:46 ` Scott Wood
2019-08-26 15:59 ` Sebastian Andrzej Siewior
2019-08-26 23:21 ` Scott Wood
2019-08-23 2:36 ` Scott Wood
2019-08-23 2:54 ` Paul E. McKenney
2019-08-21 23:19 ` [PATCH RT v2 2/3] sched: migrate_enable: Use sleeping_lock to indicate involuntary sleep Scott Wood
2019-08-21 23:35 ` Paul E. McKenney
2019-08-23 1:21 ` Scott Wood
2019-08-23 16:20 ` Sebastian Andrzej Siewior
2019-08-23 19:28 ` Scott Wood
2019-08-24 3:10 ` Joel Fernandes
2019-08-26 15:25 ` Sebastian Andrzej Siewior
2019-08-26 16:29 ` Paul E. McKenney
2019-08-26 17:49 ` Scott Wood
2019-08-26 18:12 ` Paul E. McKenney
2019-08-27 9:23 ` Sebastian Andrzej Siewior
2019-08-27 13:08 ` Joel Fernandes
2019-08-27 15:58 ` Paul E. McKenney
2019-08-27 16:06 ` Joel Fernandes
2019-08-27 15:53 ` Paul E. McKenney
2019-08-28 9:27 ` Sebastian Andrzej Siewior
2019-08-28 12:54 ` Paul E. McKenney
2019-08-28 13:14 ` Sebastian Andrzej Siewior
2019-08-28 13:59 ` Joel Fernandes
2019-08-28 15:51 ` Paul E. McKenney
2019-08-28 15:50 ` Paul E. McKenney
2019-08-21 23:19 ` [PATCH RT v2 3/3] rcu: Disable use_softirq on PREEMPT_RT Scott Wood
2019-08-21 23:40 ` Paul E. McKenney
2019-08-23 16:32 ` Sebastian Andrzej Siewior
2019-08-22 13:59 ` Joel Fernandes
2019-08-22 15:29 ` Paul E. McKenney
2019-08-22 19:31 ` Scott Wood
2019-08-23 0:52 ` Joel Fernandes
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