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) 2012, 2014, Intel Corporation.
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 <obd_class.h>
46 #include <dt_object.h>
47 #include <md_object.h>
48 #include <lustre_fid.h>
49 #include <lustre_update.h>
50 #include <lu_target.h>
51 #include <lustre_mdc.h>
54 * Infrastructure to support tracking of last committed llog record
56 struct osp_id_tracker {
59 __u32 otr_committed_id;
60 /* callback is register once per diskfs -- that's the whole point */
61 struct dt_txn_callback otr_tx_cb;
62 /* single node can run many clusters */
63 struct list_head otr_wakeup_list;
64 struct list_head otr_list;
65 /* underlying shared device */
66 struct dt_device *otr_dev;
67 /* how many users of this tracker */
68 atomic_t otr_refcount;
71 struct osp_precreate {
75 spinlock_t osp_pre_lock;
77 /* last fid to assign in creation */
78 struct lu_fid osp_pre_used_fid;
79 /* last created id OST reported, next-created - available id's */
80 struct lu_fid osp_pre_last_created_fid;
81 /* how many ids are reserved in declare, we shouldn't block in create */
82 __u64 osp_pre_reserved;
83 /* consumers (who needs new ids) wait here */
84 wait_queue_head_t osp_pre_user_waitq;
85 /* current precreation status: working, failed, stopping? */
87 /* how many to precreate next time */
88 int osp_pre_grow_count;
89 int osp_pre_min_grow_count;
90 int osp_pre_max_grow_count;
91 /* whether to grow precreation window next time or not */
92 int osp_pre_grow_slow;
93 /* cleaning up orphans or recreating missing objects */
94 int osp_pre_recovering;
98 * Tracking the updates being executed on this dt_device.
100 struct osp_update_request {
102 /* update request result */
105 /* Holding object updates sent to the remote target */
106 struct object_update_request *our_req;
109 struct list_head our_cb_items;
111 /* points to thandle if this update request belongs to one */
112 struct osp_thandle *our_th;
113 /* linked to the list(ou_list) in osp_updates */
114 struct list_head our_list;
115 __u32 our_req_sent:1;
119 struct list_head ou_list;
121 wait_queue_head_t ou_waitq;
122 /* wait for next updates */
123 __u64 ou_rpc_version;
128 struct dt_device opd_dt_dev;
129 /* corresponded OST index */
132 /* corrsponded MDT index, which will be used when connecting to OST
133 * for validating the connection (see ofd_parse_connect_data) */
135 /* device used to store persistent state (llogs, last ids) */
136 struct obd_export *opd_storage_exp;
137 struct dt_device *opd_storage;
138 struct dt_object *opd_last_used_oid_file;
139 struct dt_object *opd_last_used_seq_file;
141 /* stored persistently in LE format, updated directly to/from disk
142 * and required le64_to_cpu() conversion before use.
143 * Protected by opd_pre_lock */
144 struct lu_fid opd_last_used_fid;
145 struct lu_fid opd_gap_start_fid;
147 /* connection to OST */
148 struct obd_device *opd_obd;
149 struct obd_export *opd_exp;
150 struct obd_uuid opd_cluuid;
151 struct obd_connect_data *opd_connect_data;
153 struct proc_dir_entry *opd_proc_entry;
154 struct lprocfs_stats *opd_stats;
155 /* connection status. */
156 unsigned int opd_new_connection:1,
157 opd_got_disconnected:1,
160 opd_imp_seen_connected:1,
163 /* whether local recovery is completed:
164 * reported via ->ldo_recovery_complete() */
165 int opd_recovery_completed;
167 /* precreate structure for OSP */
168 struct osp_precreate *opd_pre;
169 /* dedicate precreate thread */
170 struct ptlrpc_thread opd_pre_thread;
171 /* thread waits for signals about pool going empty */
172 wait_queue_head_t opd_pre_waitq;
174 /* send update thread */
175 struct osp_updates *opd_update;
176 /* dedicate update thread */
177 struct ptlrpc_thread opd_update_thread;
180 * OST synchronization
182 spinlock_t opd_syn_lock;
183 /* unique generation, to recognize start of new records in the llog */
184 struct llog_gen opd_syn_generation;
185 /* number of changes to sync, used to wake up sync thread */
186 unsigned long opd_syn_changes;
187 /* processing of changes from previous mount is done? */
188 int opd_syn_prev_done;
190 struct ptlrpc_thread opd_syn_thread;
191 wait_queue_head_t opd_syn_waitq;
192 /* list of remotely committed rpc */
193 struct list_head opd_syn_committed_there;
194 /* number of changes being under sync */
195 int opd_syn_sync_in_progress;
196 /* number of RPCs in flight - flow control */
197 int opd_syn_rpc_in_flight;
198 int opd_syn_max_rpc_in_flight;
199 /* number of RPC in processing (including non-committed by OST) */
200 int opd_syn_rpc_in_progress;
201 int opd_syn_max_rpc_in_progress;
202 /* osd api's commit cb control structure */
203 struct dt_txn_callback opd_syn_txn_cb;
204 /* last used change number -- semantically similar to transno */
205 unsigned long opd_syn_last_used_id;
206 /* last committed change number -- semantically similar to
208 unsigned long opd_syn_last_committed_id;
209 /* last processed (taken from llog) id */
210 unsigned long opd_syn_last_processed_id;
211 struct osp_id_tracker *opd_syn_tracker;
212 struct list_head opd_syn_ontrack;
213 /* stop processing new requests until barrier=0 */
214 atomic_t opd_syn_barrier;
215 wait_queue_head_t opd_syn_barrier_waitq;
218 * statfs related fields: OSP maintains it on its own
220 struct obd_statfs opd_statfs;
221 cfs_time_t opd_statfs_fresh_till;
222 struct timer_list opd_statfs_timer;
223 int opd_statfs_update_in_progress;
224 /* how often to update statfs data */
225 int opd_statfs_maxage;
227 struct proc_dir_entry *opd_symlink;
229 /* If the caller wants to do some idempotent async operations on
230 * remote server, it can append the async remote requests on the
231 * osp_device::opd_async_requests via declare() functions, these
232 * requests can be packed together and sent to the remote server
233 * via single OUT RPC later. */
234 struct osp_update_request *opd_async_requests;
235 /* Protect current operations on opd_async_requests. */
236 struct mutex opd_async_requests_mutex;
237 struct list_head opd_async_updates;
238 struct rw_semaphore opd_async_updates_rwsem;
239 atomic_t opd_async_updates_count;
242 #define opd_pre_lock opd_pre->osp_pre_lock
243 #define opd_pre_used_fid opd_pre->osp_pre_used_fid
244 #define opd_pre_last_created_fid opd_pre->osp_pre_last_created_fid
245 #define opd_pre_reserved opd_pre->osp_pre_reserved
246 #define opd_pre_user_waitq opd_pre->osp_pre_user_waitq
247 #define opd_pre_status opd_pre->osp_pre_status
248 #define opd_pre_grow_count opd_pre->osp_pre_grow_count
249 #define opd_pre_min_grow_count opd_pre->osp_pre_min_grow_count
250 #define opd_pre_max_grow_count opd_pre->osp_pre_max_grow_count
251 #define opd_pre_grow_slow opd_pre->osp_pre_grow_slow
252 #define opd_pre_recovering opd_pre->osp_pre_recovering
254 extern struct kmem_cache *osp_object_kmem;
256 /* The first part of oxe_buf is xattr name, and is '\0' terminated.
257 * The left part is for value, binary mode. */
258 struct osp_xattr_entry {
259 struct list_head oxe_list;
265 unsigned int oxe_exist:1,
270 struct osp_object_attr {
271 struct lu_attr ooa_attr;
272 struct list_head ooa_xattr_list;
275 /* this is a top object */
277 struct lu_object_header opo_header;
278 struct dt_object opo_obj;
279 unsigned int opo_reserved:1,
282 /* read/write lock for md osp object */
283 struct rw_semaphore opo_sem;
284 const struct lu_env *opo_owner;
285 struct osp_object_attr *opo_ooa;
286 /* Protect opo_ooa. */
290 extern struct lu_object_operations osp_lu_obj_ops;
291 extern const struct dt_device_operations osp_dt_ops;
292 extern struct dt_object_operations osp_md_obj_ops;
293 extern struct dt_body_operations osp_md_body_ops;
295 struct osp_thread_info {
296 struct lu_buf osi_lb;
297 struct lu_buf osi_lb2;
298 struct lu_fid osi_fid;
299 struct lu_attr osi_attr;
300 struct ost_id osi_oi;
301 struct ost_id osi_oi2;
305 struct llog_rec_hdr osi_hdr;
306 struct llog_unlink64_rec osi_unlink;
307 struct llog_setattr64_rec osi_setattr;
308 struct llog_gen_rec osi_gen;
310 struct llog_cookie osi_cookie;
311 struct llog_catid osi_cid;
312 struct lu_seq_range osi_seq;
313 struct ldlm_res_id osi_resid;
314 struct obdo osi_obdo;
317 /* Iterator for OSP */
320 __u32 ooi_pos_lu_page;
323 int ooi_total_npages;
324 int ooi_valid_npages;
325 unsigned int ooi_swab:1;
327 struct dt_object *ooi_obj;
329 struct page *ooi_cur_page;
330 struct lu_idxpage *ooi_cur_idxpage;
331 struct page **ooi_pages;
334 #define OSP_THANDLE_MAGIC 0x20141214
336 struct thandle ot_super;
338 /* OSP will use this thandle to update last oid*/
339 struct thandle *ot_storage_th;
341 struct list_head ot_commit_dcb_list;
342 struct list_head ot_stop_dcb_list;
343 struct osp_update_request *ot_our;
344 atomic_t ot_refcount;
348 static inline struct osp_thandle *
349 thandle_to_osp_thandle(struct thandle *th)
351 return container_of(th, struct osp_thandle, ot_super);
354 static inline struct osp_update_request *
355 thandle_to_osp_update_request(struct thandle *th)
357 struct osp_thandle *oth;
359 oth = thandle_to_osp_thandle(th);
363 /* The transaction only include the updates on the remote node, and
364 * no local updates at all */
365 static inline bool is_only_remote_trans(struct thandle *th)
367 return th->th_top == NULL;
370 static inline void osp_objid_buf_prep(struct lu_buf *buf, loff_t *off,
371 __u32 *id, int index)
373 /* Note: through id is only 32 bits, it will also write 64 bits
374 * for oid to keep compatibility with the previous version. */
375 buf->lb_buf = (void *)id;
376 buf->lb_len = sizeof(u64);
377 *off = sizeof(u64) * index;
380 static inline void osp_objseq_buf_prep(struct lu_buf *buf, loff_t *off,
381 __u64 *seq, int index)
383 buf->lb_buf = (void *)seq;
384 buf->lb_len = sizeof(u64);
385 *off = sizeof(u64) * index;
388 static inline void osp_buf_prep(struct lu_buf *lb, void *buf, int buf_len)
391 lb->lb_len = buf_len;
394 extern struct lu_context_key osp_thread_key;
396 static inline struct osp_thread_info *osp_env_info(const struct lu_env *env)
398 struct osp_thread_info *info;
400 info = lu_context_key_get(&env->le_ctx, &osp_thread_key);
402 lu_env_refill((struct lu_env *)env);
403 info = lu_context_key_get(&env->le_ctx, &osp_thread_key);
409 struct osp_txn_info {
410 __u32 oti_current_id;
413 extern struct lu_context_key osp_txn_key;
415 static inline struct osp_txn_info *osp_txn_info(struct lu_context *ctx)
417 struct osp_txn_info *info;
419 info = lu_context_key_get(ctx, &osp_txn_key);
423 extern const struct lu_device_operations osp_lu_ops;
425 static inline int lu_device_is_osp(struct lu_device *d)
427 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osp_lu_ops);
430 static inline struct osp_device *lu2osp_dev(struct lu_device *d)
432 LASSERT(lu_device_is_osp(d));
433 return container_of0(d, struct osp_device, opd_dt_dev.dd_lu_dev);
436 static inline struct lu_device *osp2lu_dev(struct osp_device *d)
438 return &d->opd_dt_dev.dd_lu_dev;
441 static inline struct osp_device *dt2osp_dev(struct dt_device *d)
443 LASSERT(lu_device_is_osp(&d->dd_lu_dev));
444 return container_of0(d, struct osp_device, opd_dt_dev);
447 static inline struct osp_object *lu2osp_obj(struct lu_object *o)
449 LASSERT(ergo(o != NULL, lu_device_is_osp(o->lo_dev)));
450 return container_of0(o, struct osp_object, opo_obj.do_lu);
453 static inline struct lu_object *osp2lu_obj(struct osp_object *obj)
455 return &obj->opo_obj.do_lu;
458 static inline struct osp_object *osp_obj(const struct lu_object *o)
460 LASSERT(lu_device_is_osp(o->lo_dev));
461 return container_of0(o, struct osp_object, opo_obj.do_lu);
464 static inline struct osp_object *dt2osp_obj(const struct dt_object *d)
466 return osp_obj(&d->do_lu);
469 static inline struct dt_object *osp_object_child(struct osp_object *o)
471 return container_of0(lu_object_next(osp2lu_obj(o)),
472 struct dt_object, do_lu);
475 static inline struct seq_server_site *osp_seq_site(struct osp_device *osp)
477 return osp->opd_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
480 #define osp_init_rpc_lock(lck) mdc_init_rpc_lock(lck)
482 static inline void osp_get_rpc_lock(struct osp_device *osp)
484 struct mdc_rpc_lock *rpc_lock = osp->opd_obd->u.cli.cl_rpc_lock;
486 mdc_get_rpc_lock(rpc_lock, NULL);
489 static inline void osp_put_rpc_lock(struct osp_device *osp)
491 struct mdc_rpc_lock *rpc_lock = osp->opd_obd->u.cli.cl_rpc_lock;
493 mdc_put_rpc_lock(rpc_lock, NULL);
496 static inline int osp_fid_diff(const struct lu_fid *fid1,
497 const struct lu_fid *fid2)
499 /* In 2.6+ ost_idx is packed into IDIF FID, while in 2.4 and 2.5 IDIF
500 * is always FID_SEQ_IDIF(0x100000000ULL), which does not include OST
501 * index in the seq. So we can not compare IDIF FID seq here */
502 if (fid_is_idif(fid1) && fid_is_idif(fid2)) {
503 __u32 ost_idx1 = fid_idif_ost_idx(fid1);
504 __u32 ost_idx2 = fid_idif_ost_idx(fid2);
506 LASSERTF(ost_idx1 == 0 || ost_idx2 == 0 || ost_idx1 == ost_idx2,
507 "fid1: "DFID", fid2: "DFID"\n", PFID(fid1),
510 return fid_idif_id(fid1->f_seq, fid1->f_oid, 0) -
511 fid_idif_id(fid2->f_seq, fid2->f_oid, 0);
514 LASSERTF(fid_seq(fid1) == fid_seq(fid2), "fid1:"DFID
515 ", fid2:"DFID"\n", PFID(fid1), PFID(fid2));
517 return fid_oid(fid1) - fid_oid(fid2);
521 static inline void osp_update_last_fid(struct osp_device *d, struct lu_fid *fid)
523 int diff = osp_fid_diff(fid, &d->opd_last_used_fid);
525 * we might have lost precreated objects due to VBR and precreate
526 * orphans, the gap in objid can be calculated properly only here
530 d->opd_gap_start_fid = d->opd_last_used_fid;
531 d->opd_gap_start_fid.f_oid++;
532 d->opd_gap_count = diff - 1;
533 CDEBUG(D_HA, "Gap in objids: start="DFID", count =%d\n",
534 PFID(&d->opd_gap_start_fid), d->opd_gap_count);
536 d->opd_last_used_fid = *fid;
540 static int osp_fid_end_seq(const struct lu_env *env, struct lu_fid *fid)
542 if (fid_is_idif(fid)) {
543 struct osp_thread_info *info = osp_env_info(env);
544 struct ost_id *oi = &info->osi_oi;
546 fid_to_ostid(fid, oi);
547 return ostid_id(oi) == IDIF_MAX_OID;
549 return fid_oid(fid) == LUSTRE_DATA_SEQ_MAX_WIDTH;
553 static inline int osp_precreate_end_seq_nolock(const struct lu_env *env,
554 struct osp_device *osp)
556 struct lu_fid *fid = &osp->opd_pre_last_created_fid;
558 return osp_fid_end_seq(env, fid);
561 static inline int osp_precreate_end_seq(const struct lu_env *env,
562 struct osp_device *osp)
566 spin_lock(&osp->opd_pre_lock);
567 rc = osp_precreate_end_seq_nolock(env, osp);
568 spin_unlock(&osp->opd_pre_lock);
572 static inline int osp_is_fid_client(struct osp_device *osp)
574 struct obd_import *imp = osp->opd_obd->u.cli.cl_import;
576 return imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_FID;
579 struct object_update *
580 update_buffer_get_update(struct object_update_request *request,
583 int osp_extend_update_buffer(const struct lu_env *env,
584 struct osp_update_request *our);
586 #define osp_update_rpc_pack(env, name, update, op, ...) \
588 struct object_update *object_update; \
589 size_t max_update_length; \
590 struct object_update_request *ureq; \
594 ureq = update->our_req; \
595 max_update_length = update->our_req_size - \
596 object_update_request_size(ureq); \
598 object_update = update_buffer_get_update(ureq, \
600 ret = out_##name##_pack(env, object_update, \
603 if (ret == -E2BIG) { \
605 /* extend the buffer and retry */ \
606 rc1 = osp_extend_update_buffer(env, update); \
613 object_update->ou_flags |= \
615 ureq->ourq_count++; \
623 static inline bool osp_send_update_thread_running(struct osp_device *osp)
625 return osp->opd_update_thread.t_flags & SVC_RUNNING;
628 static inline bool osp_send_update_thread_stopped(struct osp_device *osp)
630 return osp->opd_update_thread.t_flags & SVC_STOPPED;
633 typedef int (*osp_update_interpreter_t)(const struct lu_env *env,
634 struct object_update_reply *rep,
635 struct ptlrpc_request *req,
636 struct osp_object *obj,
637 void *data, int index, int rc);
640 void osp_update_last_id(struct osp_device *d, u64 objid);
641 extern struct llog_operations osp_mds_ost_orig_logops;
644 int osp_insert_async_request(const struct lu_env *env, enum update_type op,
645 struct osp_object *obj, int count, __u16 *lens,
646 const void **bufs, void *data,
647 osp_update_interpreter_t interpreter);
649 int osp_unplug_async_request(const struct lu_env *env,
650 struct osp_device *osp,
651 struct osp_update_request *update);
652 int osp_trans_update_request_create(struct thandle *th);
653 struct thandle *osp_trans_create(const struct lu_env *env,
654 struct dt_device *d);
655 int osp_trans_start(const struct lu_env *env, struct dt_device *dt,
657 int osp_insert_update_callback(const struct lu_env *env,
658 struct osp_update_request *update,
659 struct osp_object *obj, void *data,
660 osp_update_interpreter_t interpreter);
662 struct osp_update_request *osp_update_request_create(struct dt_device *dt);
663 void osp_update_request_destroy(struct osp_update_request *update);
665 int osp_send_update_thread(void *arg);
666 int osp_check_and_set_rpc_version(struct osp_thandle *oth);
668 void osp_thandle_destroy(struct osp_thandle *oth);
669 static inline void osp_thandle_get(struct osp_thandle *oth)
671 atomic_inc(&oth->ot_refcount);
674 static inline void osp_thandle_put(struct osp_thandle *oth)
676 if (atomic_dec_and_test(&oth->ot_refcount))
677 osp_thandle_destroy(oth);
680 int osp_prep_update_req(const struct lu_env *env, struct obd_import *imp,
681 const struct object_update_request *ureq,
682 struct ptlrpc_request **reqp);
683 int osp_remote_sync(const struct lu_env *env, struct osp_device *osp,
684 struct osp_update_request *update,
685 struct ptlrpc_request **reqp);
687 struct thandle *osp_get_storage_thandle(const struct lu_env *env,
689 struct osp_device *osp);
690 void osp_trans_callback(const struct lu_env *env,
691 struct osp_thandle *oth, int rc);
693 int osp_attr_get(const struct lu_env *env, struct dt_object *dt,
694 struct lu_attr *attr);
695 int osp_xattr_get(const struct lu_env *env, struct dt_object *dt,
696 struct lu_buf *buf, const char *name);
697 int osp_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
698 const struct lu_buf *buf, const char *name,
699 int flag, struct thandle *th);
700 int osp_xattr_set(const struct lu_env *env, struct dt_object *dt,
701 const struct lu_buf *buf, const char *name, int fl,
703 int osp_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
704 const char *name, struct thandle *th);
705 int osp_xattr_del(const struct lu_env *env, struct dt_object *dt,
706 const char *name, struct thandle *th);
708 int osp_trans_stop(const struct lu_env *env, struct dt_device *dt,
710 int osp_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb);
712 struct dt_it *osp_it_init(const struct lu_env *env, struct dt_object *dt,
714 void osp_it_fini(const struct lu_env *env, struct dt_it *di);
715 int osp_it_get(const struct lu_env *env, struct dt_it *di,
716 const struct dt_key *key);
717 void osp_it_put(const struct lu_env *env, struct dt_it *di);
718 __u64 osp_it_store(const struct lu_env *env, const struct dt_it *di);
719 int osp_it_key_rec(const struct lu_env *env, const struct dt_it *di,
721 int osp_it_next_page(const struct lu_env *env, struct dt_it *di);
722 int osp_oac_init(struct osp_object *obj);
723 /* osp_md_object.c */
724 int osp_md_declare_object_create(const struct lu_env *env,
725 struct dt_object *dt,
726 struct lu_attr *attr,
727 struct dt_allocation_hint *hint,
728 struct dt_object_format *dof,
730 int osp_md_object_create(const struct lu_env *env, struct dt_object *dt,
731 struct lu_attr *attr, struct dt_allocation_hint *hint,
732 struct dt_object_format *dof, struct thandle *th);
733 int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
734 const struct lu_attr *attr, struct thandle *th);
735 int osp_md_attr_set(const struct lu_env *env, struct dt_object *dt,
736 const struct lu_attr *attr, struct thandle *th);
737 extern const struct dt_index_operations osp_md_index_ops;
739 /* osp_precreate.c */
740 int osp_init_precreate(struct osp_device *d);
741 int osp_precreate_reserve(const struct lu_env *env, struct osp_device *d);
742 __u64 osp_precreate_get_id(struct osp_device *d);
743 int osp_precreate_get_fid(const struct lu_env *env, struct osp_device *d,
745 void osp_precreate_fini(struct osp_device *d);
746 int osp_object_truncate(const struct lu_env *env, struct dt_object *dt, __u64);
747 void osp_pre_update_status(struct osp_device *d, int rc);
748 void osp_statfs_need_now(struct osp_device *d);
749 int osp_reset_last_used(const struct lu_env *env, struct osp_device *osp);
750 int osp_write_last_oid_seq_files(struct lu_env *env, struct osp_device *osp,
751 struct lu_fid *fid, int sync);
752 int osp_init_pre_fid(struct osp_device *osp);
755 void osp_lprocfs_init(struct osp_device *osp);
758 int osp_sync_declare_add(const struct lu_env *env, struct osp_object *o,
759 llog_op_type type, struct thandle *th);
760 int osp_sync_add(const struct lu_env *env, struct osp_object *o,
761 llog_op_type type, struct thandle *th,
762 const struct lu_attr *attr);
763 int osp_sync_init(const struct lu_env *env, struct osp_device *d);
764 int osp_sync_fini(struct osp_device *d);
765 void __osp_sync_check_for_work(struct osp_device *d);
768 extern struct obd_ops lwp_obd_device_ops;
769 extern struct lu_device_type lwp_device_type;