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>, John Kacur <jkacur@redhat.com>
Subject: [PATCH RT 2/4] rcu: Disable RCU_FAST_NO_HZ on RT
Date: Tue, 30 Oct 2012 20:31:09 -0400 [thread overview]
Message-ID: <20121031003122.969515377@goodmis.org> (raw)
In-Reply-To: 20121031003107.834398757@goodmis.org
[-- Attachment #1: 0002-rcu-Disable-RCU_FAST_NO_HZ-on-RT.patch --]
[-- Type: text/plain, Size: 751 bytes --]
From: Thomas Gleixner <tglx@linutronix.de>
This uses a timer_list timer from the irq disabled guts of the idle
code. Disable it for now to prevent wreckage.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable-rt@vger.kernel.org
---
init/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/init/Kconfig b/init/Kconfig
index 720c182..aa6545f 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -469,7 +469,7 @@ config RCU_FANOUT_EXACT
config RCU_FAST_NO_HZ
bool "Accelerate last non-dyntick-idle CPU's grace periods"
- depends on TREE_RCU && NO_HZ && SMP
+ depends on TREE_RCU && NO_HZ && SMP && !PREEMPT_RT_FULL
default n
help
This option causes RCU to attempt to accelerate grace periods
--
1.7.10.4
next prev parent reply other threads:[~2012-10-31 0:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-31 0:31 [PATCH RT 0/4] [ANNOUNCE] 3.2.32-rt49-rc1 stable review Steven Rostedt
2012-10-31 0:31 ` [PATCH RT 1/4] hrtimer: Raise softirq if hrtimer irq stalled Steven Rostedt
2012-10-31 0:31 ` Steven Rostedt [this message]
2012-10-31 0:31 ` [PATCH RT 3/4] net: netfilter: Serialize xt_write_recseq sections on RT Steven Rostedt
2012-10-31 0:31 ` [PATCH RT 4/4] Linux 3.2.32-rt49-rc1 Steven Rostedt
-- strict thread matches above, loose matches on Subject: below --
2012-10-31 0:32 [PATCH RT 0/4] [ANNOUNCE] 3.0.48-rt72-rc1 stable review Steven Rostedt
2012-10-31 0:33 ` [PATCH RT 2/4] rcu: Disable RCU_FAST_NO_HZ on RT Steven Rostedt
2012-10-31 0:29 [PATCH RT 0/4] [ANNOUNCE] 3.4.15-rt26-rc1 stable review Steven Rostedt
2012-10-31 0:29 ` [PATCH RT 2/4] rcu: Disable RCU_FAST_NO_HZ on RT Steven Rostedt
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