diff --git a/arch/um/sys-i386/delay.c b/arch/um/sys-i386/delay.c
index 20d37db..e9892ee 100644
--- a/arch/um/sys-i386/delay.c
+++ b/arch/um/sys-i386/delay.c
@@ -1,3 +1,6 @@
+#include "linux/delay.h"
+#include "asm/param.h"
+
 void __delay(unsigned long time)
 {
 	/* Stolen from the i386 __loop_delay */
@@ -12,3 +15,18 @@
 		:"0" (time));
 }
 
+void __udelay(unsigned long usecs)
+{
+	int i, n;
+
+	n = (loops_per_jiffy * HZ * usecs) / MILLION;
+	for(i=0;i<n;i++) ;
+}
+
+void __const_udelay(unsigned long usecs)
+{
+	int i, n;
+
+	n = (loops_per_jiffy * HZ * usecs) / MILLION;
+	for(i=0;i<n;i++) ;
+}
diff --git a/arch/um/sys-i386/ksyms.c b/arch/um/sys-i386/ksyms.c
index b10bfdd..db524ab3 100644
--- a/arch/um/sys-i386/ksyms.c
+++ b/arch/um/sys-i386/ksyms.c
@@ -2,6 +2,7 @@
 #include "linux/in6.h"
 #include "linux/rwsem.h"
 #include "asm/byteorder.h"
+#include "asm/delay.h"
 #include "asm/semaphore.h"
 #include "asm/uaccess.h"
 #include "asm/checksum.h"
@@ -14,3 +15,7 @@
 
 /* Networking helper routines. */
 EXPORT_SYMBOL(csum_partial);
+
+/* delay core functions */
+EXPORT_SYMBOL(__const_udelay);
+EXPORT_SYMBOL(__udelay);