From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri, 6 Jan 2017 23:14:11 +0000 (-0800)
Subject: doc: Add rcutree.rcu_kick_kthreads to kernel-parameters.txt
X-Git-Tag: v4.11-rc1~174^2^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e3c50dfbbd6f10a60dba0d2d6eedde0616e2d1d4;p=karo-tx-linux.git

doc: Add rcutree.rcu_kick_kthreads to kernel-parameters.txt

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index be7c0d9506b1..110745e7d61f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3278,6 +3278,13 @@
 			Lazy RCU callbacks are those which RCU can
 			prove do nothing more than free memory.
 
+	rcutree.rcu_kick_kthreads= [KNL]
+			Cause the grace-period kthread to get an extra
+			wake_up() if it sleeps three times longer than
+			it should at force-quiescent-state time.
+			This wake_up() will be accompanied by a
+			WARN_ONCE() splat and an ftrace_dump().
+
 	rcuperf.gp_exp= [KNL]
 			Measure performance of expedited synchronous
 			grace-period primitives.