Thread (5 messages) 5 messages, 1 author, 2012-10-31

[PATCH RT 2/4] rcu: Disable RCU_FAST_NO_HZ on RT

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STALE5092d

From: Steven Rostedt <rostedt@goodmis.org>
Date: 2012-10-31 00:31:28
Also in: lkml
Subsystem: the rest · Maintainer: Linus Torvalds

From: Thomas Gleixner <redacted>

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 <redacted>
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
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