diff --git a/[refs] b/[refs]
index 124132947102..4ba477b17d0c 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4d9a5d4319e22670ec6d6227e12b54f361c46d0f
+refs/heads/master: ba49df4767d4fa5bbd2af3a51709fb81f94264ec
diff --git a/trunk/init/Kconfig b/trunk/init/Kconfig
index 6fdd6e339326..b63e7982c1c6 100644
--- a/trunk/init/Kconfig
+++ b/trunk/init/Kconfig
@@ -582,14 +582,13 @@ config RCU_FAST_NO_HZ
 	depends on NO_HZ && SMP
 	default n
 	help
-	  This option causes RCU to attempt to accelerate grace periods
-	  in order to allow CPUs to enter dynticks-idle state more
-	  quickly.  On the other hand, this option increases the overhead
-	  of the dynticks-idle checking, particularly on systems with
-	  large numbers of CPUs.
-
-	  Say Y if energy efficiency is critically important, particularly
-	  	if you have relatively few CPUs.
+	  This option causes RCU to attempt to accelerate grace periods in
+	  order to allow CPUs to enter dynticks-idle state more quickly.
+	  On the other hand, this option increases the overhead of the
+	  dynticks-idle checking, thus degrading scheduling latency.
+
+	  Say Y if energy efficiency is critically important, and you don't
+	  	care about real-time response.
 
 	  Say N if you are unsure.