int lfsck_query(const struct lu_env *env, struct dt_device *key,
struct lfsck_request *lr);
-int lfsck_get_speed(struct dt_device *key, void *buf, int len);
+int lfsck_get_speed(struct seq_file *m, struct dt_device *key);
int lfsck_set_speed(struct dt_device *key, int val);
-int lfsck_get_windows(struct dt_device *key, void *buf, int len);
+int lfsck_get_windows(struct seq_file *m, struct dt_device *key);
int lfsck_set_windows(struct dt_device *key, int val);
-int lfsck_dump(struct dt_device *key, void *buf, int len, enum lfsck_type type);
+int lfsck_dump(struct seq_file *m, struct dt_device *key, enum lfsck_type type);
static inline void lfsck_pack_rfa(struct lfsck_request *lr,
const struct lu_fid *fid)