.. option:: fdatasync=int
Like :option:`fsync` but uses :manpage:`fdatasync(2)` to only sync data and
- not metadata blocks. In FreeBSD and Windows there is no
+ not metadata blocks. In Windows, FreeBSD, and DragonFlyBSD there is no
:manpage:`fdatasync(2)`, this falls back to using :manpage:`fsync(2)`.
.. option:: write_barrier=int