/*
* io unit handling
*/
-#define queue_full(td) io_u_qempty(&(td)->io_u_freelist)
extern struct io_u *__get_io_u(struct thread_data *);
extern struct io_u *get_io_u(struct thread_data *);
extern void put_io_u(struct thread_data *, struct io_u *);
extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int, unsigned int);
void io_u_mark_complete(struct thread_data *, unsigned int);
void io_u_mark_submit(struct thread_data *, unsigned int);
+int queue_full(struct thread_data *);
int do_io_u_sync(struct thread_data *, struct io_u *);
int do_io_u_trim(struct thread_data *, struct io_u *);