Fixup some of the time (usec) based conversions

Modified by Jens to fixup some of the mtime/utime confusion,
and add a specific ->is_time to options to get rid of future
issues in this area.

Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/parse.h b/parse.h
index 2a1e06a..a9d726d 100644
--- a/parse.h
+++ b/parse.h
@@ -73,6 +73,7 @@
 	unsigned int group;		/* who to group with */
 	void *gui_data;
 	int is_seconds;			/* time value with seconds base */
+	int is_time;			/* time based value */
 	int no_warn_def;
 };
 
@@ -89,10 +90,10 @@
 
 extern void strip_blank_front(char **);
 extern void strip_blank_end(char *);
-extern int str_to_decimal(const char *, long long *, int, void *, int);
+extern int str_to_decimal(const char *, long long *, int, void *, int, int);
 extern int check_str_bytes(const char *p, long long *val, void *data);
 extern int check_str_time(const char *p, long long *val, int);
-extern int str_to_float(const char *str, double *val);
+extern int str_to_float(const char *str, double *val, int is_time);
 
 /*
  * Handlers for the options