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New xfs from Arla between 0.34.2 and current in arla cvs.
Too many new features and fixes to mention here.

/*
 * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * All rights reserved.
 *
 * 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.
 *
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the Kungliga Tekniska
 *      Högskolan and its contributors.
 *
 * 4. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
 */

/* 	$Id: xfs_node.h,v 1.6 2000/09/11 14:26:53 art Exp $	 */

#ifndef _xfs_xnode_h
#define _xfs_xnode_h

#include <sys/types.h>
#include <sys/time.h>
#if defined(_KERNEL) || !defined(__OpenBSD__)
#include <sys/vnode.h>
#endif
#ifdef __NetBSD__
#include <sys/lockf.h>
#endif /* __NetBSD__ */

#include <xfs/xfs_attr.h>
#include <xfs/xfs_message.h>

#ifdef __APPLE__
typedef struct lock__bsd__ xfs_vnode_lock;
#else
typedef struct lock xfs_vnode_lock;
#endif

struct xfs_node {
    struct vnode *vn;
    struct vnode *data;
    struct vattr attr;
    u_int flags;
    u_int tokens;
    xfs_handle handle;
    xfs_pag_t id[MAXRIGHTS];
    u_char rights[MAXRIGHTS];
    u_char anonrights;
#if defined(HAVE_KERNEL_LOCKMGR) || defined(HAVE_KERNEL_DEBUGLOCKMGR)
    xfs_vnode_lock lock;
#else
    int vnlocks;
#endif
#ifdef __NetBSD__
    struct   lockf *i_lockf;
#endif
    struct ucred *cred;
};

int xfs_getnewvnode(struct mount *mp, struct vnode **vpp,
                struct xfs_handle *handle);


#define DATA_FROM_VNODE(vp) DATA_FROM_XNODE(VNODE_TO_XNODE(vp))

#define DATA_FROM_XNODE(xp) ((xp)->data)

#define XNODE_TO_VNODE(xp) ((xp)->vn)
#define VNODE_TO_XNODE(vp) ((struct xfs_node *) (vp)->v_data)

#if defined(HAVE_ONE_ARGUMENT_VGET)
#define xfs_do_vget(vp, lockflag, proc) vget((vp))
#elif defined(HAVE_TWO_ARGUMENT_VGET)
#define xfs_do_vget(vp, lockflag, proc) vget((vp), (lockflag))
#elif defined(HAVE_THREE_ARGUMENT_VGET)
#define xfs_do_vget(vp, lockflag, proc) vget((vp), (lockflag), (proc))
#else
#error what kind of vget
#endif

#ifndef HAVE_VOP_T
typedef int vop_t (void *);
#endif

#ifdef LK_INTERLOCK
#define HAVE_LK_INTERLOCK
#else
#define LK_INTERLOCK 0
#endif

#ifdef LK_RETRY
#define HAVE_LK_RETRY
#else
#define LK_RETRY 0
#endif

/*
 * This is compat code for older vfs that have a 
 * vget that only take a integer (really boolean) argument
 * that the the returned vnode will be returned locked
 */

#ifdef LK_EXCLUSIVE
#define HAVE_LK_EXCLUSIVE 1
#else
#define LK_EXCLUSIVE 1
#endif

#ifdef LK_SHARED
#define HAVE_LK_SHARED 1
#else
#define LK_SHARED 1
#endif

#endif				       /* _xfs_xnode_h */