extern char* find_mount(char *mp);
extern char* find_mount_point(char *block, int mtd_only);
extern int find_filesystem(char *fs);
-extern int find_mtd_block(char *name, char *part, int plen);
-extern int find_mtd_char(char *name, char *part, int plen);
-extern int jffs2_ready(char *mtd);
extern int jffs2_switch(struct volume *v);
extern int handle_whiteout(const char *dir);