diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt
index 13e88fc00f01..f48f4621ccbc 100644
--- a/Documentation/RCU/stallwarn.txt
+++ b/Documentation/RCU/stallwarn.txt
@@ -57,6 +57,12 @@ o	A CPU-bound real-time task in a CONFIG_PREEMPT_RT kernel that
 	CONFIG_PREEMPT_RCU case, you might see stall-warning
 	messages.
 
+	You can use the rcutree.kthread_prio kernel boot parameter to
+	increase the scheduling priority of RCU's kthreads, which can
+	help avoid this problem.  However, please note that doing this
+	can increase your system's context-switch rate and thus degrade
+	performance.
+
 o	A periodic interrupt whose handler takes longer than the time
 	interval between successive pairs of interrupts.  This can
 	prevent RCU's kthreads and softirq handlers from running.