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)
71 #ifdef HAVE_QUOTA_SUPPORT
84 struct dt_device od_dt_dev;
85 /* information about underlying file system */
86 struct lustre_mount_info *od_mount;
90 * XXX temporary stuff for object index: directory where every object
91 * is named by its fid.
93 struct dentry *od_obj_area;
95 /* Environment for transaction commit callback.
96 * Currently, OSD is based on ext3/JBD. Transaction commit in ext3/JBD
97 * is serialized, that is there is no more than one transaction commit
98 * at a time (JBD journal_commit_transaction() is serialized).
99 * This means that it's enough to have _one_ lu_context.
101 struct lu_env od_env_for_commit;
106 unsigned int od_fl_capa:1;
107 unsigned long od_capa_timeout;
109 struct lustre_capa_key *od_capa_keys;
110 struct hlist_head *od_capa_hash;
112 cfs_proc_dir_entry_t *od_proc_entry;
113 struct lprocfs_stats *od_stats;
115 * statfs optimization: we cache a bit.
117 cfs_time_t od_osfs_age;
118 struct kstatfs od_kstatfs;
119 spinlock_t od_osfs_lock;
123 struct osd_thread_info {
124 const struct lu_env *oti_env;
126 struct lu_fid oti_fid;
127 struct osd_inode_id oti_id;
129 * XXX temporary: for ->i_op calls.
132 struct txn_param oti_txn;
134 * XXX temporary: fake dentry used by xattr calls.
136 struct dentry oti_dentry;
137 struct timespec oti_time;
139 * XXX temporary: fake struct file for osd_object_sync
141 struct file oti_file;
143 * XXX temporary: for capa operations.
145 struct lustre_capa_key oti_capa_key;
146 struct lustre_capa oti_capa;
148 struct lu_fid_pack oti_pack;
150 /* union to guarantee that ->oti_ipd[] has proper alignment. */
152 char oti_ipd[DX_IPD_MAX_SIZE];
153 long long oti_alignment_lieutenant;
158 #ifdef HAVE_QUOTA_SUPPORT
159 struct osd_ctxt oti_ctxt;
165 void lprocfs_osd_init_vars(struct lprocfs_static_vars *lvars);
166 int osd_procfs_init(struct osd_device *osd, const char *name);
167 int osd_procfs_fini(struct osd_device *osd);
168 void osd_lprocfs_time_start(const struct lu_env *env);
169 void osd_lprocfs_time_end(const struct lu_env *env,
170 struct osd_device *osd, int op);
172 int osd_statfs(const struct lu_env *env, struct dt_device *dev,
173 struct kstatfs *sfs);
175 #endif /* __KERNEL__ */
176 #endif /* _OSD_INTERNAL_H */