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+.\" -*- nroff -*-
+.\"
+.\" Copyright (c) 1996 Doug Rabson
+.\"
+.\" All rights reserved.
+.\"
+.\" This program is free software.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd January 7, 2005
+.Os
+.Dt VFS_VGET 9
+.Sh NAME
+.Nm VFS_VGET
+.Nd convert an inode number to a vnode
+.Sh SYNOPSIS
+.In sys/param.h
+.In sys/mount.h
+.In sys/vnode.h
+.Ft int
+.Fn VFS_VGET "struct mount *mp" "ino_t ino" "int flags" "struct vnode **vpp"
+.Sh DESCRIPTION
+The
+.Fn VFS_VGET
+looks up or creates a vnode from a (mount, inode#) tupple.
+.Pp
+Its arguments are:
+.Bl -tag -width ".Fa flags"
+.It Fa mp
+The mount point.
+.It Fa ino
+The inode representing the file.
+This is a unique number assigned by the file system when vnodes are first
+created.
+.It Fa flags
+Additional locking flags to pass through to
+.Xr vget 9 .
+.It Fa vpp
+Return parameter for the vnode.
+.El
+.Pp
+This is an optional file system entry-point for file systems mainly
+intended for NFS server use, but many file systems
+use it internally in
+.Xr VOP_LOOKUP 9
+and similar.
+.Pp
+If the file system does not support this call, then it should return
+.Er EOPNOTSUPP .
+.Pp
+Please see
+.Fn ffs_vget
+in
+.Pa sys/ufs/ffs/ffs_vfsops.c
+for the canonical example.
+.Sh SEE ALSO
+.Xr VFS 9 ,
+.Xr vget 9 ,
+.Xr vnode 9
+.Sh AUTHORS
+This manual page was written by
+.An Doug Rabson .