mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-26 11:47:31 +00:00
78 lines
2.5 KiB
Groff
78 lines
2.5 KiB
Groff
.\"
|
|
.\" Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.
|
|
.\"
|
|
.\" 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(s), this list of conditions and the following disclaimer as
|
|
.\" the first lines of this file unmodified other than the possible
|
|
.\" addition of one or more copyright notices.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice(s), 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 COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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 November 21, 2001
|
|
.Dt VFS_GETVFS 9
|
|
.Os
|
|
.Sh NAME
|
|
.Nm vfs_getvfs
|
|
.Nd "returns a mount point given its file system identifier"
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/mount.h
|
|
.Ft "struct mount *"
|
|
.Fn vfs_getvfs "fsid_t *fsid"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn vfs_getvfs
|
|
function returns the mount point structure for a file system given its file system
|
|
identifier.
|
|
The file system ID should have been allocated by calling
|
|
.Xr vfs_getnewfsid 9 ;
|
|
otherwise, it will not be found.
|
|
.Pp
|
|
A major user of
|
|
.Fn vfs_getvfs
|
|
is NFS, which uses the
|
|
.Vt fsid
|
|
as part of file handles in order to determine the
|
|
file system a given RPC is for.
|
|
If
|
|
.Fn vfs_getvfs
|
|
fails to find the mount point related to
|
|
.Fa fsid ,
|
|
the file system is considered stale.
|
|
.Sh RETURN VALUES
|
|
If
|
|
.Fa fsid
|
|
is found, the mount point for the ID is returned; otherwise,
|
|
.Dv NULL
|
|
is returned.
|
|
.Sh PSEUDOCODE
|
|
.Bd -literal
|
|
if ((mp = vfs_getvfs(&fhp->fh_fsid)) == NULL) {
|
|
error = ESTALE;
|
|
goto out;
|
|
}
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr vfs_getnewfsid 9
|
|
.Sh AUTHORS
|
|
This manual page was written by
|
|
.An Chad David Aq davidc@acns.ab.ca .
|