Index: linux-2.6.30.10/drivers/mtd/mtdblock.c
===================================================================
--- linux-2.6.30.10.orig/drivers/mtd/mtdblock.c	2010-03-19 00:17:37.000000000 +0100
+++ linux-2.6.30.10/drivers/mtd/mtdblock.c	2010-03-19 00:17:54.000000000 +0100
@@ -45,7 +45,7 @@
 	wake_up(wait_q);
 }
 
-static int erase_write (struct mtd_info *mtd, unsigned long pos,
+int erase_write (struct mtd_info *mtd, unsigned long pos,
 			int len, const char *buf)
 {
 	struct erase_info erase;
Index: linux-2.6.30.10/include/linux/mtd/mtd.h
===================================================================
--- linux-2.6.30.10.orig/include/linux/mtd/mtd.h	2010-03-19 00:17:42.000000000 +0100
+++ linux-2.6.30.10/include/linux/mtd/mtd.h	2010-03-19 00:21:22.000000000 +0100
@@ -319,6 +319,10 @@
 int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
 		      unsigned long count, loff_t from, size_t *retlen);
 
+int erase_write (struct mtd_info *mtd, unsigned long pos,
+		      int len, const char *buf);
+
+
 #ifdef CONFIG_MTD_PARTITIONS
 void mtd_erase_callback(struct erase_info *instr);
 #else