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.Dd May 23, 2009 30.Dt VFS_UNMOUNT 9 31.Os 32.Sh NAME 33.Nm VFS_UNMOUNT 34.Nd unmount a file system 35.Sh SYNOPSIS 36.In sys/param.h 37.In sys/mount.h 38.In sys/vnode.h 39.Ft int 40.Fn VFS_UNMOUNT "struct mount *mp" "int mntflags" 41.Sh DESCRIPTION 42The 43.Fn VFS_UNMOUNT 44macro unmounts a file system. 45.Pp 46The arguments it expects are: 47.Bl -tag -width mntflags 48.It Fa mp 49The file system. 50.It Fa mntflags 51Bit-mask of flags for the unmount operation. 52The flags currently supported by 53.Fn VFS_UNMOUNT 54are: 55.Bl -tag -width ".Dv MNT_FORCE" 56.It Dv MNT_FORCE 57Open files are forcibly closed before the file system is unmounted. 58.El 59.El 60.Sh SEE ALSO 61.Xr vflush 9 , 62.Xr VFS 9 , 63.Xr vnode 9 64.Sh AUTHORS 65This manual page was written by 66.An Doug Rabson . 67