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 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osd/osd_internal.h
38 * Shared definitions and declarations for osd module
40 * Author: Nikita Danilov <nikita@clusterfs.com>
43 #ifndef _OSD_INTERNAL_H
44 #define _OSD_INTERNAL_H
46 #if defined(__KERNEL__)
48 /* struct rw_semaphore */
49 #include <linux/rwsem.h>
50 /* handle_t, journal_start(), journal_stop() */
51 #include <linux/jbd.h>
52 /* struct dx_hash_info */
53 #include <linux/ldiskfs_fs.h>
55 #include <linux/dcache.h>
56 #include <linux/lustre_iam.h>
60 /* class_register_type(), class_unregister_type(), class_get_type() */
61 #include <obd_class.h>
62 #include <lustre_disk.h>
64 #include <dt_object.h>
69 #define OSD_COUNTERS (0)
76 struct dt_device od_dt_dev;
77 /* information about underlying file system */
78 struct lustre_mount_info *od_mount;
82 * XXX temporary stuff for object index: directory where every object
83 * is named by its fid.
85 struct dentry *od_obj_area;
87 /* Environment for transaction commit callback.
88 * Currently, OSD is based on ext3/JBD. Transaction commit in ext3/JBD
89 * is serialized, that is there is no more than one transaction commit
90 * at a time (JBD journal_commit_transaction() is serialized).
91 * This means that it's enough to have _one_ lu_context.
93 struct lu_env od_env_for_commit;
98 unsigned int od_fl_capa:1;
99 unsigned long od_capa_timeout;
101 struct lustre_capa_key *od_capa_keys;
102 struct hlist_head *od_capa_hash;
104 cfs_proc_dir_entry_t *od_proc_entry;
105 struct lprocfs_stats *od_stats;
107 * statfs optimization: we cache a bit.
109 cfs_time_t od_osfs_age;
110 struct kstatfs od_kstatfs;
111 spinlock_t od_osfs_lock;
115 struct osd_thread_info {
116 const struct lu_env *oti_env;
118 struct lu_fid oti_fid;
119 struct osd_inode_id oti_id;
121 * XXX temporary: for ->i_op calls.
124 struct txn_param oti_txn;
126 * XXX temporary: fake dentry used by xattr calls.
128 struct dentry oti_dentry;
129 struct timespec oti_time;
131 * XXX temporary: fake struct file for osd_object_sync
133 struct file oti_file;
135 * XXX temporary: for capa operations.
137 struct lustre_capa_key oti_capa_key;
138 struct lustre_capa oti_capa;
140 struct lu_fid_pack oti_pack;
142 /* union to guarantee that ->oti_ipd[] has proper alignment. */
144 char oti_ipd[DX_IPD_MAX_SIZE];
145 long long oti_alignment_lieutenant;
156 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
157 int osd_procfs_init(struct osd_device *osd, const char *name);
158 int osd_procfs_fini(struct osd_device *osd);
159 void osd_lprocfs_time_start(const struct lu_env *env);
160 void osd_lprocfs_time_end(const struct lu_env *env,
161 struct osd_device *osd, int op);
163 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
164 struct kstatfs *sfs);
166 #endif /* __KERNEL__ */
167 #endif /* _OSD_INTERNAL_H */