config root man

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.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 .