6a5074a375
Revison 222167 added a new argument to VFS_FHTOVP. This revision updates the man page to match. Reviewed by: rmacklem MFC after: 3 days Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D20323
92 lines
2.8 KiB
Groff
92 lines
2.8 KiB
Groff
.\" -*- 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 May 19, 2019
|
|
.Dt VFS_FHTOVP 9
|
|
.Os
|
|
.Sh NAME
|
|
.Nm VFS_FHTOVP
|
|
.Nd turn an NFS filehandle into a vnode
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/mount.h
|
|
.In sys/vnode.h
|
|
.Ft int
|
|
.Fn VFS_FHTOVP "struct mount *mp" "struct fid *fhp" "int flags" "struct vnode **vpp"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn VFS_FHTOVP
|
|
macro is used by the NFS server to turn an NFS filehandle into a vnode.
|
|
.Pp
|
|
The arguments it expects are:
|
|
.Bl -tag -width flags
|
|
.It Fa mp
|
|
The file system.
|
|
.It Fa fhp
|
|
The filehandle to convert.
|
|
.It Fa flags
|
|
Additional locking flags to pass through to
|
|
.Xr vget 9 .
|
|
File systems are allowed to ignore
|
|
.Ar flags
|
|
and use
|
|
.Dv LK_EXCLUSIVE
|
|
instead.
|
|
.It Fa vpp
|
|
Return parameter for the new locked vnode.
|
|
.El
|
|
.Pp
|
|
The contents of the filehandle are defined by the file system and are
|
|
not examined by any other part of the system.
|
|
It should contain
|
|
enough information to uniquely identify a file within the file system
|
|
as well as noticing when a file has been removed and the file system
|
|
resources have been reused for a new file.
|
|
For instance, UFS
|
|
file system stores the inode number and inode generation counter in its
|
|
filehandle.
|
|
.Pp
|
|
A call to
|
|
.Fn VFS_FHTOVP
|
|
should generally be preceded by a call to
|
|
.Xr VFS_CHECKEXP 9
|
|
to check if the file is accessible to the client.
|
|
.Sh RETURN VALUES
|
|
The locked vnode for the file will be returned in
|
|
.Fa *vpp .
|
|
.Sh SEE ALSO
|
|
.Xr VFS 9 ,
|
|
.Xr VFS_CHECKEXP 9 ,
|
|
.Xr vnode 9 ,
|
|
.Xr VOP_VPTOFH 9
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An Doug Rabson .
|