On Mon, 1 Jun 1998, Klaus Klein wrote:

>     * define two flags which can be bitwise inclusive-or'ed into this
>       argument:
> 
>       - FSYNC_WAIT, which specifies synchronous operation; if not set,
>         operation will be asynchronous,
> 
>       - FSYNC_DATAONLY, which is a hint: if possible, enforce data
>         integrity completition only.  If it's not feasible for a file
>         store implementation to omit file status synchronization when
>         synchronizing file data, this is ignored.
> 

I presume you mean that if it can't do DATAONLY as requested it will
default to WAIT to ensure data integrity.

--Sean