Index: defaults/amd64/Makefile.config
===================================================================
--- defaults/amd64/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/amd64/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -38,4 +38,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # Input device class
 CONFIG_HID_IN = generic
Index: defaults/arm32/Makefile.config
===================================================================
--- defaults/arm32/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/arm32/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -29,4 +29,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # What is your input device?
 CONFIG_HID_IN = generic
Index: defaults/ia32/Makefile.config
===================================================================
--- defaults/ia32/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/ia32/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -44,4 +44,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # Input device class
 CONFIG_HID_IN = generic
Index: defaults/ia64/Makefile.config
===================================================================
--- defaults/ia64/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/ia64/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -41,4 +41,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # Input device class
 CONFIG_HID_IN = generic
Index: defaults/mips32/Makefile.config
===================================================================
--- defaults/mips32/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/mips32/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -35,4 +35,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # Input device class
 CONFIG_HID_IN = generic
Index: defaults/ppc32/Makefile.config
===================================================================
--- defaults/ppc32/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/ppc32/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -32,4 +32,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # Input device class
 CONFIG_HID_IN = generic
Index: defaults/sparc32/Makefile.config
===================================================================
--- defaults/sparc32/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/sparc32/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -44,4 +44,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # Input device class
 CONFIG_HID_IN = generic
Index: defaults/sparc64/Makefile.config
===================================================================
--- defaults/sparc64/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/sparc64/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -44,4 +44,7 @@
 CONFIG_TEST = y
 
+# Kernel RCU implementation
+RCU = PREEMPT_A
+
 # Input device class
 CONFIG_HID_IN = generic
Index: defaults/special/Makefile.config
===================================================================
--- defaults/special/Makefile.config	(revision 30730e5e9bf741593943226bf927cba1283f2901)
+++ defaults/special/Makefile.config	(revision 270bf4fe38f53f4a00441b4db82354b89ed7cf71)
@@ -28,2 +28,6 @@
 # Compile kernel tests
 CONFIG_TEST = y
+
+# Kernel RCU implementation
+RCU = PREEMPT_A
+