--- zzzz-none-000/linux-2.4.17/include/linux/smp.h	2001-11-22 19:46:19.000000000 +0000
+++ sangam-fb-322/linux-2.4.17/include/linux/smp.h	2004-11-24 13:21:43.000000000 +0000
@@ -81,7 +81,9 @@
 #define smp_processor_id()			0
 #define hard_smp_processor_id()			0
 #define smp_threads_ready			1
+#ifndef CONFIG_PREEMPT
 #define kernel_lock()
+#endif
 #define cpu_logical_map(cpu)			0
 #define cpu_number_map(cpu)			0
 #define smp_call_function(func,info,retry,wait)	({ 0; })