.\"     $OpenBSD: vhold.9,v 1.6 2009/12/15 07:34:58 jmc Exp $
.\"
.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.
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.\" $FreeBSD: src/share/man/man9/vhold.9,v 1.2 2001/12/14 09:11:13 ru Exp $
.\"
.Dd $Mdocdate: December 15 2009 $
.Dt VHOLD 9
.Os
.Sh NAME
.Nm vhold
.Nd acquire a hold on a vnode
.Sh SYNOPSIS
.Fd #include <sys/param.h>
.Fd #include <sys/vnode.h>
.Ft void
.Fn vhold "struct vnode *vp"
.Sh DESCRIPTION
The
.Fn vhold
function increments the
.Va v_holdcnt
of the given vnode.
If the vnode has already been added to the free list and its
.Va v_holdcnt
and
.Va v_usecount
are both zero, it will be removed from the free list and
added to the vnode hold list.
.Sh SEE ALSO
.Xr vnode 9
.Sh AUTHORS
This man page was originally written by
.An Chad David Aq davidc@acns.ab.ca
for
.Fx .