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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2014, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/include/lustre_mds.h
33 * MDS data structures.
34 * See also lustre_idl.h for wire formats of requests.
45 #include <lustre_handles.h>
46 #include <libcfs/libcfs.h>
47 #include <uapi/linux/lustre/lustre_idl.h>
48 #include <lustre_lib.h>
49 #include <lustre_dlm.h>
50 #include <lustre_export.h>
52 struct md_rejig_data {
53 struct md_object *mrd_obj;
57 #define MDD_OBD_NAME "mdd_obd"
58 #define MDD_OBD_UUID "mdd_obd_uuid"
60 static inline int md_should_create(u64 open_flags)
62 return !(open_flags & MDS_OPEN_DELAY_CREATE) &&
63 (open_flags & MDS_FMODE_WRITE) &&
64 !(open_flags & MDS_OPEN_LEASE);
67 /* do NOT or the MAY_*'s, you'll get the weakest */
68 static inline int mds_accmode(u64 open_flags)
70 unsigned int may_mask = 0;
72 if (open_flags & MDS_FMODE_READ)
74 if (open_flags & (MDS_FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
75 may_mask |= MAY_WRITE;
76 if (open_flags & MDS_FMODE_EXEC)