static int xfs_read(struct boot_file_t *file, unsigned int size, void *buffer);
static int xfs_seek(struct boot_file_t *file, unsigned int newpos);
static int xfs_close(struct boot_file_t *file);
static int xfs_read(struct boot_file_t *file, unsigned int size, void *buffer);
static int xfs_seek(struct boot_file_t *file, unsigned int newpos);
static int xfs_close(struct boot_file_t *file);