time: convert to uint64_t

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/time.h b/time.h
index 3824102..d835191 100644
--- a/time.h
+++ b/time.h
@@ -1,19 +1,18 @@
 #ifndef FIO_TIME_H
 #define FIO_TIME_H
 
-extern unsigned long long utime_since(struct timeval *, struct timeval *);
-extern unsigned long long utime_since_now(struct timeval *);
-extern unsigned long mtime_since(struct timeval *, struct timeval *);
-extern unsigned long mtime_since_now(struct timeval *);
-extern unsigned long time_since_now(struct timeval *);
-extern unsigned long mtime_since_genesis(void);
+extern uint64_t utime_since(struct timeval *, struct timeval *);
+extern uint64_t utime_since_now(struct timeval *);
+extern uint64_t mtime_since(struct timeval *, struct timeval *);
+extern uint64_t mtime_since_now(struct timeval *);
+extern uint64_t time_since_now(struct timeval *);
+extern uint64_t mtime_since_genesis(void);
 extern void usec_spin(unsigned int);
 extern void usec_sleep(struct thread_data *, unsigned long);
 extern void fill_start_time(struct timeval *);
 extern void set_genesis_time(void);
 extern int ramp_time_over(struct thread_data *);
 extern int in_ramp_time(struct thread_data *);
-extern unsigned long long genesis_cycles;
 extern void fio_time_init(void);
 
 #endif