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Date:	Fri, 18 Jul 2014 13:30:52 -0400
From:	Pranith Kumar <>
To:	"Paul E. McKenney" <>,
	LKML <>,
	Josh Triplett <>
Subject: [PATCH 1/1] rcu: Fix build failure

Hi Paul,

While running the kvm rcutorture test scripts, I encountered a build failure caused by

Commit 918179699e4a ("rcu: Don't keep timekeeping CPU tick running for non-nohz_full= CPUs")

This commit fixes the failure. This is on top of paul/rcu/dev.

Signed-off-by: Pranith Kumar <>
 kernel/rcu/tree_plugin.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 5591276..eaa32e4 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -2795,7 +2795,7 @@ static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq)
 	 * CPU to keep a tick on our behalf.  We assume that the timekeeping
 	 * CPU is also a nohz_full= CPU.
-	if (!tick_nohz_full_cpu(cpu))
+	if (!tick_nohz_full_cpu(smp_processor_id()))
 	/* Update system-idle state: We are clearly no longer fully idle! */
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