diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 47160fe..d9725a2 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -42,6 +42,20 @@
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
 #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
 
+#ifdef CONFIG_LBD
+# include <asm/div64.h>
+# define sector_div(a, b) do_div(a, b)
+#else
+# define sector_div(n, b)( \
+{ \
+	int _res; \
+	_res = (n) % (b); \
+	(n) /= (b); \
+	_res; \
+} \
+)
+#endif
+
 /**
  * upper_32_bits - return bits 32-63 of a number
  * @n: the number we're accessing