Index: defaults/amd64/Makefile.config
===================================================================
--- defaults/amd64/Makefile.config	(revision 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/amd64/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -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 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/arm32/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -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 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/ia32/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -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 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/ia64/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -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 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/mips32/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -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 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/ppc32/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -29,4 +29,7 @@
 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 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/sparc64/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -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 6c1c1f79aaaa7b2f5d4a551c5a9364e83ad78478)
+++ defaults/special/Makefile.config	(revision 5e3fa9dbfffc978cdcfdaaea9fc6a50dbb0bca1a)
@@ -28,2 +28,6 @@
 # Compile kernel tests
 CONFIG_TEST = y
+
+# Kernel RCU implementation
+RCU = PREEMPT_A
+