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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Intel, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/osp/osp_internal.h
38 * Author: Alex Zhuravlev <alexey.zhuravlev@intel.com>
41 #ifndef _OSP_INTERNAL_H
42 #define _OSP_INTERNAL_H
45 #include <dt_object.h>
46 #include <lustre_fid.h>
49 struct dt_device opd_dt_dev;
50 /* corresponded OST index */
52 /* device used to store persistent state (llogs, last ids) */
53 struct obd_export *opd_storage_exp;
54 struct dt_device *opd_storage;
55 struct dt_object *opd_last_used_file;
56 /* protected by opd_pre_lock */
57 volatile obd_id opd_last_used_id;
60 /* connection to OST */
61 struct obd_device *opd_obd;
62 struct obd_export *opd_exp;
63 struct obd_uuid opd_cluuid;
64 struct obd_connect_data *opd_connect_data;
66 cfs_proc_dir_entry_t *opd_proc_entry;
67 struct lprocfs_stats *opd_stats;
68 /* connection status. */
69 int opd_new_connection;
70 int opd_got_disconnected;
71 int opd_imp_connected;
73 int opd_imp_seen_connected:1;
75 /* whether local recovery is completed:
76 * reported via ->ldo_recovery_complete() */
77 int opd_recovery_completed;
79 cfs_proc_dir_entry_t *opd_symlink;
82 extern cfs_mem_cache_t *osp_object_kmem;
84 /* this is a top object */
86 struct lu_object_header opo_header;
87 struct dt_object opo_obj;
91 extern struct lu_object_operations osp_lu_obj_ops;
93 struct osp_thread_info {
95 struct lu_fid osi_fid;
96 struct lu_attr osi_attr;
101 static inline void osp_objid_buf_prep(struct osp_thread_info *osi,
102 struct osp_device *d, int index)
104 osi->osi_lb.lb_buf = (void *)&d->opd_last_used_id;
105 osi->osi_lb.lb_len = sizeof(d->opd_last_used_id);
106 osi->osi_off = sizeof(d->opd_last_used_id) * index;
109 extern struct lu_context_key osp_thread_key;
111 static inline struct osp_thread_info *osp_env_info(const struct lu_env *env)
113 struct osp_thread_info *info;
115 info = lu_context_key_get(&env->le_ctx, &osp_thread_key);
117 lu_env_refill((struct lu_env *)env);
118 info = lu_context_key_get(&env->le_ctx, &osp_thread_key);
124 struct osp_txn_info {
125 __u32 oti_current_id;
128 extern struct lu_context_key osp_txn_key;
130 static inline struct osp_txn_info *osp_txn_info(struct lu_context *ctx)
132 struct osp_txn_info *info;
134 info = lu_context_key_get(ctx, &osp_txn_key);
138 extern const struct lu_device_operations osp_lu_ops;
140 static inline int lu_device_is_osp(struct lu_device *d)
142 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osp_lu_ops);
145 static inline struct osp_device *lu2osp_dev(struct lu_device *d)
147 LASSERT(lu_device_is_osp(d));
148 return container_of0(d, struct osp_device, opd_dt_dev.dd_lu_dev);
151 static inline struct lu_device *osp2lu_dev(struct osp_device *d)
153 return &d->opd_dt_dev.dd_lu_dev;
156 static inline struct osp_device *dt2osp_dev(struct dt_device *d)
158 LASSERT(lu_device_is_osp(&d->dd_lu_dev));
159 return container_of0(d, struct osp_device, opd_dt_dev);
162 static inline struct osp_object *lu2osp_obj(struct lu_object *o)
164 LASSERT(ergo(o != NULL, lu_device_is_osp(o->lo_dev)));
165 return container_of0(o, struct osp_object, opo_obj.do_lu);
168 static inline struct lu_object *osp2lu_obj(struct osp_object *obj)
170 return &obj->opo_obj.do_lu;
173 static inline struct osp_object *osp_obj(const struct lu_object *o)
175 LASSERT(lu_device_is_osp(o->lo_dev));
176 return container_of0(o, struct osp_object, opo_obj.do_lu);
179 static inline struct osp_object *dt2osp_obj(const struct dt_object *d)
181 return osp_obj(&d->do_lu);
184 static inline struct dt_object *osp_object_child(struct osp_object *o)
186 return container_of0(lu_object_next(osp2lu_obj(o)),
187 struct dt_object, do_lu);
191 void osp_update_last_id(struct osp_device *d, obd_id objid);
194 void lprocfs_osp_init_vars(struct lprocfs_static_vars *lvars);