.\"     $OpenBSD: vclean.9,v 1.6 2004/04/17 20:30:41 jmc Exp $
.\"-
.\" Copyright (c) 2002 Peter Werner
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.Dd February 18, 2002
.Os
.Dt VCLEAN 9
.Sh NAME
.Nm vclean
.Nd disassociate the underlying file system from a vnode
.Sh SYNOPSIS
.Fd #include <sys/param.h>
.Fd #include <sys/vnode.h>
.Ft void
.Fo vclean
.Fa "struct vnode *vp"
.Fa "int flags"
.Fa "struct proc *p"
.Fc
.Sh DESCRIPTION
The
.Fn vclean
function clears any VM and buffer data associated with the vnode
.Fa vp
and reclaims it from the underlying file system.
.Pp
Its arguments are:
.Bl -tag -width ".Fa flags"
.It Fa vp
The vnode to be cleaned.
.It Fa flags
The flags indicating how the vnode should be handled.
.Bl -tag -width ".Dv DOCLOSE"
.It Dv DOCLOSE
If this flag is set,
.Fn vclean
will call
.Xr vinvalbuf 9
on the vnode.
If the vnode is active, it will be closed and inactivated in the
underlying file system.
.El
.It Fa p
The process responsible for this call.
.El
.Pp
The vnode interlock is held on entry.
On exit, the
.Va v_tag
field of the vnode will be set to
.Dv VT_NON ,
and if the vnode was active, it will be placed on the vnode free list.
.Sh SEE ALSO
.Xr vinvalbuf 9 ,
.Xr vnode 9
.Sh HISTORY
This man page was originally written for
.Ox .