1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
32 * Copyright (c) 2012, Whamcloud, Inc.
35 * This file is part of Lustre, http://www.lustre.org/
36 * Lustre is a trademark of Sun Microsystems, Inc.
42 * Author: Nikita Danilov <nikita@clusterfs.com>
46 * Object Index (oi) service runs in the bottom layer of server stack. In
47 * translates fid local to this service to the storage cookie that uniquely
48 * and efficiently identifies object (inode) of the underlying file system.
54 #if defined(__KERNEL__)
56 /* struct rw_semaphore */
57 #include <linux/rwsem.h>
58 #include <lustre_fid.h>
59 #include <lu_object.h>
60 #include <md_object.h>
63 struct osd_thread_info;
70 * Object Index (oi) instance.
74 * underlying index object, where fid->id mapping in stored.
76 struct dt_object *oi_dir;
80 * Storage cookie. Datum uniquely identifying inode on the underlying file
83 * XXX Currently this is ext2/ext3/ldiskfs specific thing. In the future this
84 * should be generalized to work with other local file systems.
87 __u32 oii_ino; /* inode number */
88 __u32 oii_gen; /* inode generation */
91 int osd_oi_mod_init(void);
92 int osd_oi_init(struct osd_thread_info *info,
93 struct osd_oi **oi_table,
94 struct dt_device *dev,
95 struct md_device *mdev);
96 void osd_oi_fini(struct osd_thread_info *info,
97 struct osd_oi **oi_table, unsigned oi_count);
99 int osd_oi_lookup(struct osd_thread_info *info, struct osd_oi *oi,
100 const struct lu_fid *fid, struct osd_inode_id *id);
101 int osd_oi_insert(struct osd_thread_info *info, struct osd_oi *oi,
102 const struct lu_fid *fid, const struct osd_inode_id *id,
103 struct thandle *th, int ingore_quota);
104 int osd_oi_delete(struct osd_thread_info *info,
105 struct osd_oi *oi, const struct lu_fid *fid,
108 #endif /* __KERNEL__ */
109 #endif /* _OSD_OI_H */