#include <linux/buffer_head.h>
#include <linux/mutex.h>
#include <linux/mount.h>
+#include <linux/slab.h>
#define ERROR(fmt, args...) printk(KERN_ERR "block2mtd: " fmt "\n" , ## args)
#define INFO(fmt, args...) printk(KERN_INFO "block2mtd: " fmt "\n" , ## args)