VOP_FSYNC(9) on FreeBSD

The text 97b987fde83c, as FreeBSD 4.3-RELEASE, FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.

flush filesystem buffers for a file

VOP_FSYNC(9) on FreeBSD now