X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=init%2FKconfig;h=dcc96a8c8c697451412d811a759b0a3683c265f8;hb=02d90fc343411d6dff26bbd64f0895a243e6f608;hp=0d0bbf218f1f363d2c4732fe7cde4d9ac0909529;hpb=21af0297c7e56024a5ccc4d8ad2a590f9ec371ba;p=linux-2.6

diff --git a/init/Kconfig b/init/Kconfig
index 0d0bbf218f..dcc96a8c8c 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -775,6 +775,14 @@ config PREEMPT_NOTIFIERS
 choice
 	prompt "RCU implementation type:"
 	default CLASSIC_RCU
+	help
+	  This allows you to choose either the classic RCU implementation
+	  that is designed for best read-side performance on non-realtime
+	  systems, or the preemptible RCU implementation for best latency
+	  on realtime systems.  Note that some kernel preemption modes
+	  will restrict your choice.
+
+	  Select the default if you are unsure.
 
 config CLASSIC_RCU
 	bool "Classic RCU"