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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: release/9.1.0/share/man/man9/VFS_ROOT.9 206622 2010-04-14 19:08:06Z uqs $ .\" .Dd May 23, 2009 .Dt VFS_ROOT 9 .Os .Sh NAME .Nm VFS_ROOT .Nd return the root vnode of a file system .Sh SYNOPSIS .In sys/param.h .In sys/mount.h .In sys/vnode.h .Ft int .Fn VFS_ROOT "struct mount *mp" "int flags" "struct vnode **vpp" .Sh DESCRIPTION Return a locked vnode for the root directory of the file system. .Pp Its arguments are: .Bl -tag -width flags .It Fa mp The file system. .It Fa flags The lock type. Could be .Dv LK_EXCLUSIVE or .Dv LK_SHARED . File system is free to ignore the .Fa flags argument and instead acquire an exclusive lock. .It Fa vpp Return parameter for the root vnode. .El .Sh SEE ALSO .Xr VFS 9 , .Xr vnode 9 .Sh AUTHORS This manual page was written by .An Doug Rabson .