int lfsck_get_speed(struct seq_file *m, struct dt_device *key);
int lfsck_set_speed(struct dt_device *key, __u32 val);
int lfsck_get_windows(struct seq_file *m, struct dt_device *key);
-int lfsck_set_windows(struct dt_device *key, int val);
+int lfsck_set_windows(struct dt_device *key, unsigned int val);
int lfsck_dump(struct seq_file *m, struct dt_device *key, enum lfsck_type type);