/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
 * vim:expandtab:shiftwidth=8:tabstop=8:
 *
 * GPL HEADER START
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License version 2 for more details (a copy is included
 * in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this program; If not, see
 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 * GPL HEADER END
 */
/*
 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 * Use is subject to license terms.
 *
 * Copyright (c) 2011, Whamcloud, Inc.
 */
/*
 * This file is part of Lustre, http://www.lustre.org/
 * Lustre is a trademark of Sun Microsystems, Inc.
 *
 * lustre/include/lustre_mds.h
 *
 * MDS data structures.
 * See also lustre_idl.h for wire formats of requests.
 */

#ifndef _LUSTRE_MDS_H
#define _LUSTRE_MDS_H

/** \defgroup mds mds
 *
 * @{
 */

#include <lustre_handles.h>
#include <libcfs/libcfs.h>
#include <lustre/lustre_idl.h>
#include <lustre_lib.h>
#include <lustre_dlm.h>
#include <lustre_log.h>
#include <lustre_export.h>

#if defined(__linux__)
#include <linux/lustre_mds.h>
#elif defined(__APPLE__)
#include <darwin/lustre_mds.h>
#elif defined(__WINNT__)
#include <winnt/lustre_mds.h>
#else
#error Unsupported operating system.
#endif

struct mds_group_info {
        struct obd_uuid *uuid;
        int group;
};

struct mds_capa_info {
        struct obd_uuid        *uuid;
        struct lustre_capa_key *capa;
};

/* mds/mds_lov.c */
int mds_lov_write_objids(struct obd_device *obd);
int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm);
void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm);
int mds_log_op_unlink(struct obd_device *, struct lov_mds_md *, int,
                      struct llog_cookie *, int);


#define MDD_OBD_NAME     "mdd_obd"
#define MDD_OBD_UUID     "mdd_obd_uuid"
#define MDD_OBD_TYPE     "mds"

static inline int md_should_create(__u64 flags)
{
       return !(flags & MDS_OPEN_DELAY_CREATE ||
               !(flags & FMODE_WRITE));
}

/* these are local flags, used only on the client, private */
#define M_CHECK_STALE           0200000000

/** @} mds */

#endif