VOP_ADVLOCK(9) on FreeBSD

The text 69984e197e1f, as FreeBSD 4.3-RELEASE, FreeBSD 4.2-RELEASE, FreeBSD 4.1.1-RELEASE, FreeBSD 4.1-RELEASE, FreeBSD 4.0-RELEASE shipped it.

advisory record locking

VOP_ADVLOCK(9) on FreeBSD now