Don't xref ourselves in SEE ALSO; separate SEE ALSO entries by comma;

use more mark up in some places.

share/man/man9/vfsops.9

@@ -1,4 +1,4 @@
-.\"     $NetBSD: vfsops.9,v 1.5 2002/08/14 18:50:48 soren Exp $
+.\"     $NetBSD: vfsops.9,v 1.6 2002/08/15 03:23:55 wiz Exp $
 .\"
 .\" Copyright (c) 2001 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -104,7 +104,9 @@ All supported file systems in the kernel have an entry in the
 .Va vfs_list_initial
 table.  This table is generated by
 .Xr config 8
-and is a NULL-terminated list of
+and is a
+.Dv NULL Ns No -terminated
+list of
 .Em vfsops
 structures.  The vfsops structure describes the operations that can be
 done to a specific file system type.  The following table list the
@@ -148,7 +150,8 @@ effect that it is not supported.
 and
 .Em vfs_mountroot
 may
-be NULL.
+be
+.Dv NULL .
 .Pp
 At system boot, each file system with an entry in
 .Va vfs_list_initial
@@ -330,7 +333,8 @@ The function is optional for file systems which have a unique id
 number for every file in the file system.  It is used internally by
 the UFS file system and also by the NFSv3 server to implement the
 READDIRPLUS nfs call.  If the file system does not support this
-function, it should return EOPNOTSUPP.
+function, it should return
+.Er EOPNOTSUPP .
 .It Fn VFS_FHTOVP "mp" "fhp" "vpp"
 Get the vnode for the NFS file specified by the file handle
 .Fa fhp
@@ -389,8 +393,7 @@ and
 .Xr intro 9 ,
 .Xr namei 9 ,
 .Xr vfs 9 ,
-.Xr vfsops 9 ,
-.Xr vnode 9
+.Xr vnode 9 ,
 .Xr vnodeops 9
 .Sh HISTORY
 The vfs operations vector, its functions and the corresponding macros