extern void io_u_log_error(struct thread_data *, struct io_u *);
extern void io_u_init_timeout(void);
extern void io_u_set_timeout(struct thread_data *);
extern void io_u_log_error(struct thread_data *, struct io_u *);
extern void io_u_init_timeout(void);
extern void io_u_set_timeout(struct thread_data *);