From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon, 3 Nov 2008 17:16:39 +0000 (-0800)
Subject: rcu: increase RCU stall-check timeouts
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=29cbda77a67cf263d636feea65d3bbc9c7de2e24;p=deliverable%2Flinux.git

rcu: increase RCU stall-check timeouts

Impact: increase timeout of debug check feature

Increase RCU stall period timeouts to reduce the likelyhood of
false positives.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/include/linux/rcuclassic.h b/include/linux/rcuclassic.h
index 5f89b62e6983..301dda829e37 100644
--- a/include/linux/rcuclassic.h
+++ b/include/linux/rcuclassic.h
@@ -41,7 +41,7 @@
 #include <linux/seqlock.h>
 
 #ifdef CONFIG_RCU_CPU_STALL_DETECTOR
-#define RCU_SECONDS_TILL_STALL_CHECK	( 3 * HZ) /* for rcp->jiffies_stall */
+#define RCU_SECONDS_TILL_STALL_CHECK	(10 * HZ) /* for rcp->jiffies_stall */
 #define RCU_SECONDS_TILL_STALL_RECHECK	(30 * HZ) /* for rcp->jiffies_stall */
 #endif /* #ifdef CONFIG_RCU_CPU_STALL_DETECTOR */