1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
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8 * This program is free software; you can redistribute it and/or modify
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15 * General Public License version 2 for more details (a copy is included
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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.
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33 * This file is part of Lustre, http://www.lustre.org/
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40 * Author: Nikita Danilov <nikita@clusterfs.com>
44 * Object Index (oi) service runs in the bottom layer of server stack. In
45 * translates fid local to this service to the storage cookie that uniquely
46 * and efficiently identifies object (inode) of the underlying file system.
52 #if defined(__KERNEL__)
54 /* struct rw_semaphore */
55 #include <linux/rwsem.h>
56 #include <lu_object.h>
57 #include <md_object.h>
60 struct osd_thread_info;
72 * Object Index (oi) instance.
76 * underlying index object, where fid->id mapping in stored.
78 struct dt_object *oi_dir;
82 * Storage cookie. Datum uniquely identifying inode on the underlying file
85 * XXX Currently this is ext2/ext3/ldiskfs specific thing. In the future this
86 * should be generalized to work with other local file systems.
89 __u32 oii_ino; /* inode number */
90 __u32 oii_gen; /* inode generation */
93 int osd_oi_mod_init(void);
94 int osd_oi_init(struct osd_thread_info *info,
96 struct dt_device *dev,
97 struct md_device *mdev);
98 void osd_oi_fini(struct osd_thread_info *info, struct osd_oi *oi);
100 int osd_oi_lookup(struct osd_thread_info *info, struct osd_oi *oi,
101 const struct lu_fid *fid, struct osd_inode_id *id);
102 int osd_oi_insert(struct osd_thread_info *info, struct osd_oi *oi,
103 const struct lu_fid *fid, const struct osd_inode_id *id,
104 struct thandle *th, int ingore_quota);
105 int osd_oi_delete(struct osd_thread_info *info,
106 struct osd_oi *oi, const struct lu_fid *fid,
109 #endif /* __KERNEL__ */
110 #endif /* _OSD_OI_H */