From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org,
linux-rt-users <linux-rt-users@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Carsten Emde <C.Emde@osadl.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
John Kacur <jkacur@redhat.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
Julia Cartwright <julia@ni.com>,
Daniel Wagner <daniel.wagner@siemens.com>,
tom.zanussi@linux.intel.com
Subject: [PATCH RT 07/13] rcu: make RCU_BOOST default on RT without EXPERT
Date: Mon, 07 Jan 2019 14:52:59 -0500 [thread overview]
Message-ID: <20190107195332.915976523@goodmis.org> (raw)
In-Reply-To: 20190107195252.599921907@goodmis.org
4.14.87-rt50-rc1 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
[ Upstream commit 78cab7cb632b6a4c84e78e4f12bb9e83c09b8885 ]
Paul E. McKenney suggested to allow enabling RCU_BOOST on RT without the
need to go through the EXPERT option first.
Suggeted-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
kernel/rcu/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig
index 0be2c96fb640..a243a78ff38c 100644
--- a/kernel/rcu/Kconfig
+++ b/kernel/rcu/Kconfig
@@ -36,7 +36,7 @@ config TINY_RCU
config RCU_EXPERT
bool "Make expert-level adjustments to RCU configuration"
- default y if PREEMPT_RT_FULL
+ default n
help
This option needs to be enabled if you wish to make
expert-level adjustments to RCU configuration. By default,
@@ -190,7 +190,7 @@ config RCU_FAST_NO_HZ
config RCU_BOOST
bool "Enable RCU priority boosting"
- depends on RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT
+ depends on (RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT) || PREEMPT_RT_FULL
default y if PREEMPT_RT_FULL
help
This option boosts the priority of preempted RCU readers that
--
2.19.2
next prev parent reply other threads:[~2019-01-07 19:52 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-07 19:52 [PATCH RT 00/13] Linux 4.14.87-rt50-rc1 Steven Rostedt
2019-01-07 19:52 ` [PATCH RT 01/13] work-simple: drop a shit statement in SWORK_EVENT_PENDING Steven Rostedt
2019-01-08 3:06 ` Sergey Senozhatsky
2019-01-08 3:26 ` Steven Rostedt
2019-01-08 4:47 ` Sergey Senozhatsky
2019-01-08 9:00 ` Sebastian Andrzej Siewior
2019-01-07 19:52 ` [PATCH RT 02/13] kthread: convert worker lock to raw spinlock Steven Rostedt
2019-01-07 19:52 ` [PATCH RT 03/13] mm/kasan: make quarantine_lock a raw_spinlock_t Steven Rostedt
2019-01-07 19:52 ` [PATCH RT 05/13] sched/migrate_disable: Add export_symbol_gpl for __migrate_disabled Steven Rostedt
2019-01-07 19:52 ` [PATCH RT 06/13] pinctrl: bcm2835: Use raw spinlock for RT compatibility Steven Rostedt
2019-01-07 19:52 ` Steven Rostedt [this message]
2019-01-07 19:53 ` [PATCH RT 08/13] x86/fpu: Disable preemption around local_bh_disable() Steven Rostedt
2019-01-07 19:53 ` [PATCH RT 09/13] hrtimer: move state change before hrtimer_cancel in do_nanosleep() Steven Rostedt
2019-01-07 19:53 ` [PATCH RT 10/13] drm/i915: disable tracing on -RT Steven Rostedt
2019-01-07 20:10 ` Sebastian Andrzej Siewior
2019-01-07 19:53 ` [PATCH RT 11/13] x86/mm/pat: disable preemption __split_large_page() after spin_lock() Steven Rostedt
2019-01-07 19:53 ` [PATCH RT 13/13] Linux 4.14.87-rt50-rc1 Steven Rostedt
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