1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 1996 Doug Rabson 4.\" 5.\" All rights reserved. 6.\" 7.\" This program is free software. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 19.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 22.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28.\" 29.\" $FreeBSD$ 30.\" 31.Dd May 23, 2009 32.Dt VFS_UNMOUNT 9 33.Os 34.Sh NAME 35.Nm VFS_UNMOUNT 36.Nd unmount a file system 37.Sh SYNOPSIS 38.In sys/param.h 39.In sys/mount.h 40.In sys/vnode.h 41.Ft int 42.Fn VFS_UNMOUNT "struct mount *mp" "int mntflags" 43.Sh DESCRIPTION 44The 45.Fn VFS_UNMOUNT 46macro unmounts a file system. 47.Pp 48The arguments it expects are: 49.Bl -tag -width mntflags 50.It Fa mp 51The file system. 52.It Fa mntflags 53Bit-mask of flags for the unmount operation. 54The flags currently supported by 55.Fn VFS_UNMOUNT 56are: 57.Bl -tag -width ".Dv MNT_FORCE" 58.It Dv MNT_FORCE 59Open files are forcibly closed before the file system is unmounted. 60.El 61.El 62.Sh SEE ALSO 63.Xr vflush 9 , 64.Xr VFS 9 , 65.Xr vnode 9 66.Sh AUTHORS 67This manual page was written by 68.An Doug Rabson . 69