4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/include/lustre_mds.h
38 * MDS data structures.
39 * See also lustre_idl.h for wire formats of requests.
50 #include <lustre_handles.h>
51 #include <libcfs/libcfs.h>
52 #include <lustre/lustre_idl.h>
53 #include <lustre_lib.h>
54 #include <lustre_dlm.h>
55 #include <lustre_log.h>
56 #include <lustre_export.h>
58 #if defined(__linux__)
59 #include <linux/lustre_mds.h>
60 #elif defined(__APPLE__)
61 #include <darwin/lustre_mds.h>
62 #elif defined(__WINNT__)
63 #include <winnt/lustre_mds.h>
65 #error Unsupported operating system.
68 struct mds_group_info {
69 struct obd_uuid *uuid;
73 struct mds_capa_info {
74 struct obd_uuid *uuid;
75 struct lustre_capa_key *capa;
79 int mds_lov_write_objids(struct obd_device *obd);
80 int mds_lov_prepare_objids(struct obd_device *obd, struct lov_mds_md *lmm);
81 void mds_lov_update_objids(struct obd_device *obd, struct lov_mds_md *lmm);
82 int mds_log_op_unlink(struct obd_device *, struct lov_mds_md *, int,
83 struct llog_cookie *, int);
86 #define MDD_OBD_NAME "mdd_obd"
87 #define MDD_OBD_UUID "mdd_obd_uuid"
88 #define MDD_OBD_TYPE "mds"
90 static inline int md_should_create(__u64 flags)
92 return !(flags & MDS_OPEN_DELAY_CREATE ||
93 !(flags & FMODE_WRITE));
96 /* these are local flags, used only on the client, private */
97 #define M_CHECK_STALE 0200000000