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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/osp/osp_internal.h
34 * Author: Alex Zhuravlev <alexey.zhuravlev@intel.com>
37 #ifndef _OSP_INTERNAL_H
38 #define _OSP_INTERNAL_H
41 #include <obd_class.h>
42 #include <dt_object.h>
43 #include <md_object.h>
44 #include <lustre_fid.h>
45 #include <lustre_update.h>
46 #include <lu_target.h>
47 #include <lustre_mdc.h>
50 * Infrastructure to support tracking of last committed llog record
52 struct osp_id_tracker {
55 __u64 otr_committed_id;
56 /* callback is register once per diskfs -- that's the whole point */
57 struct dt_txn_callback otr_tx_cb;
58 /* single node can run many clusters */
59 struct list_head otr_wakeup_list;
60 struct list_head otr_list;
61 /* underlying shared device */
62 struct dt_device *otr_dev;
63 /* how many users of this tracker */
64 atomic_t otr_refcount;
67 struct osp_precreate {
71 spinlock_t osp_pre_lock;
73 /* last fid to assign in creation */
74 struct lu_fid osp_pre_used_fid;
75 /* last created id OST reported, next-created - available id's */
76 struct lu_fid osp_pre_last_created_fid;
77 /* how many ids are reserved in declare, we shouldn't block in create */
78 __u64 osp_pre_reserved;
79 /* consumers (who needs new ids) wait here */
80 wait_queue_head_t osp_pre_user_waitq;
81 /* current precreation status: working, failed, stopping? */
83 /* how many objects to precreate next time */
84 int osp_pre_create_count;
85 int osp_pre_min_create_count;
86 int osp_pre_max_create_count;
87 /* whether to increase precreation window next time or not */
88 int osp_pre_create_slow;
89 /* cleaning up orphans or recreating missing objects */
90 int osp_pre_recovering;
91 int osp_pre_delorphan_sent;
94 struct osp_update_request_sub {
95 struct object_update_request *ours_req; /* may be vmalloc'd */
97 /* Linked to osp_update_request->our_req_list */
98 struct list_head ours_list;
101 struct osp_update_request {
103 /* update request result */
106 /* List of osp_update_request_sub */
107 struct list_head our_req_list;
111 struct list_head our_cb_items;
112 struct list_head our_invalidate_cb_list;
114 /* points to thandle if this update request belongs to one */
115 struct osp_thandle *our_th;
118 __u64 our_generation;
119 /* protect our_list and flag */
120 spinlock_t our_list_lock;
121 /* linked to the list(ou_list) in osp_updates */
122 struct list_head our_list;
124 __u32 our_req_ready:1;
129 struct list_head ou_list;
131 wait_queue_head_t ou_waitq;
133 /* The next rpc version which supposed to be sent in
134 * osp_send_update_thread().*/
135 __u64 ou_rpc_version;
137 /* The rpc version assigned to the osp thandle during (osp_md_write()),
138 * which will be sent by this order. Note: the osp_thandle has be sent
139 * by this order to make sure the remote update log will follow the
140 * llog format rule. XXX: these probably should be removed once we
141 * invent new llog format */
144 /* The generation of current osp update RPC, which is used to make sure
145 * those stale RPC(with older generation) will not be sent, otherwise it
146 * will cause update lllog corruption */
151 struct dt_device opd_dt_dev;
152 /* corresponded OST index */
155 /* corrsponded MDT index, which will be used when connecting to OST
156 * for validating the connection (see ofd_parse_connect_data) */
158 /* device used to store persistent state (llogs, last ids) */
159 struct obd_export *opd_storage_exp;
160 struct dt_device *opd_storage;
161 struct dt_object *opd_last_used_oid_file;
162 struct dt_object *opd_last_used_seq_file;
164 /* stored persistently in LE format, updated directly to/from disk
165 * and required le64_to_cpu() conversion before use.
166 * Protected by opd_pre_lock */
167 struct lu_fid opd_last_used_fid;
168 struct lu_fid opd_gap_start_fid;
170 /* connection to OST */
171 struct obd_device *opd_obd;
172 struct obd_export *opd_exp;
173 struct obd_uuid opd_cluuid;
174 struct obd_connect_data *opd_connect_data;
176 struct proc_dir_entry *opd_proc_entry;
177 struct lprocfs_stats *opd_stats;
178 /* connection status. */
179 unsigned int opd_new_connection:1,
180 opd_got_disconnected:1,
183 opd_imp_seen_connected:1,
186 /* whether local recovery is completed:
187 * reported via ->ldo_recovery_complete() */
188 int opd_recovery_completed;
190 /* precreate structure for OSP */
191 struct osp_precreate *opd_pre;
192 /* dedicate precreate thread */
193 struct ptlrpc_thread opd_pre_thread;
194 /* thread waits for signals about pool going empty */
195 wait_queue_head_t opd_pre_waitq;
197 /* send update thread */
198 struct osp_updates *opd_update;
199 /* dedicate update thread */
200 struct ptlrpc_thread opd_update_thread;
203 * OST synchronization
205 spinlock_t opd_syn_lock;
206 /* unique generation, to recognize start of new records in the llog */
207 struct llog_gen opd_syn_generation;
208 /* number of changes to sync, used to wake up sync thread */
209 atomic_t opd_syn_changes;
210 /* processing of changes from previous mount is done? */
211 int opd_syn_prev_done;
213 struct ptlrpc_thread opd_syn_thread;
214 wait_queue_head_t opd_syn_waitq;
215 /* list of inflight rpc */
216 struct list_head opd_syn_inflight_list;
217 /* list of remotely committed rpc */
218 struct list_head opd_syn_committed_there;
219 /* number of changes being under sync */
220 int opd_syn_sync_in_progress;
221 /* number of RPCs in flight - flow control */
222 atomic_t opd_syn_rpc_in_flight;
223 int opd_syn_max_rpc_in_flight;
224 /* number of RPC in processing (including non-committed by OST) */
225 atomic_t opd_syn_rpc_in_progress;
226 int opd_syn_max_rpc_in_progress;
227 /* osd api's commit cb control structure */
228 struct dt_txn_callback opd_syn_txn_cb;
229 /* last used change number -- semantically similar to transno */
230 __u64 opd_syn_last_used_id;
231 /* last committed change number -- semantically similar to
233 __u64 opd_syn_last_committed_id;
234 /* last processed (taken from llog) id */
235 volatile __u64 opd_syn_last_processed_id;
236 struct osp_id_tracker *opd_syn_tracker;
237 struct list_head opd_syn_ontrack;
238 /* stop processing new requests until barrier=0 */
239 atomic_t opd_syn_barrier;
240 wait_queue_head_t opd_syn_barrier_waitq;
243 * statfs related fields: OSP maintains it on its own
245 struct obd_statfs opd_statfs;
246 cfs_time_t opd_statfs_fresh_till;
247 struct timer_list opd_statfs_timer;
248 int opd_statfs_update_in_progress;
249 /* how often to update statfs data */
250 int opd_statfs_maxage;
252 struct proc_dir_entry *opd_symlink;
254 /* If the caller wants to do some idempotent async operations on
255 * remote server, it can append the async remote requests on the
256 * osp_device::opd_async_requests via declare() functions, these
257 * requests can be packed together and sent to the remote server
258 * via single OUT RPC later. */
259 struct osp_update_request *opd_async_requests;
260 /* Protect current operations on opd_async_requests. */
261 struct mutex opd_async_requests_mutex;
262 struct list_head opd_async_updates;
263 struct rw_semaphore opd_async_updates_rwsem;
264 atomic_t opd_async_updates_count;
267 * Limit the object allocation using ENOSPC for opd_pre_status
269 int opd_reserved_mb_high;
270 int opd_reserved_mb_low;
273 #define opd_pre_lock opd_pre->osp_pre_lock
274 #define opd_pre_used_fid opd_pre->osp_pre_used_fid
275 #define opd_pre_last_created_fid opd_pre->osp_pre_last_created_fid
276 #define opd_pre_reserved opd_pre->osp_pre_reserved
277 #define opd_pre_user_waitq opd_pre->osp_pre_user_waitq
278 #define opd_pre_status opd_pre->osp_pre_status
279 #define opd_pre_create_count opd_pre->osp_pre_create_count
280 #define opd_pre_min_create_count opd_pre->osp_pre_min_create_count
281 #define opd_pre_max_create_count opd_pre->osp_pre_max_create_count
282 #define opd_pre_create_slow opd_pre->osp_pre_create_slow
283 #define opd_pre_recovering opd_pre->osp_pre_recovering
285 extern struct kmem_cache *osp_object_kmem;
287 /* The first part of oxe_buf is xattr name, and is '\0' terminated.
288 * The left part is for value, binary mode. */
289 struct osp_xattr_entry {
290 struct list_head oxe_list;
296 unsigned int oxe_exist:1,
301 /* this is a top object */
303 struct lu_object_header opo_header;
304 struct dt_object opo_obj;
305 unsigned int opo_reserved:1,
309 /* read/write lock for md osp object */
310 struct rw_semaphore opo_sem;
311 const struct lu_env *opo_owner;
312 struct lu_attr opo_attr;
313 struct list_head opo_xattr_list;
314 struct list_head opo_invalidate_cb_list;
315 /* Protect opo_ooa. */
319 extern struct lu_object_operations osp_lu_obj_ops;
320 extern const struct dt_device_operations osp_dt_ops;
321 extern struct dt_object_operations osp_md_obj_ops;
322 extern struct dt_body_operations osp_md_body_ops;
324 struct osp_thread_info {
325 struct lu_buf osi_lb;
326 struct lu_buf osi_lb2;
327 struct lu_fid osi_fid;
328 struct lu_attr osi_attr;
329 struct ost_id osi_oi;
330 struct ost_id osi_oi2;
334 struct llog_rec_hdr osi_hdr;
335 struct llog_unlink64_rec osi_unlink;
336 struct llog_setattr64_rec_v2 osi_setattr;
337 struct llog_gen_rec osi_gen;
339 struct llog_cookie osi_cookie;
340 struct llog_catid osi_cid;
341 struct lu_seq_range osi_seq;
342 struct ldlm_res_id osi_resid;
343 struct obdo osi_obdo;
346 /* Iterator for OSP */
349 __u32 ooi_pos_lu_page;
353 int ooi_total_npages;
354 int ooi_valid_npages;
355 unsigned int ooi_swab:1;
357 struct dt_object *ooi_obj;
359 struct page *ooi_cur_page;
360 struct lu_idxpage *ooi_cur_idxpage;
361 struct page **ooi_pages;
364 #define OSP_THANDLE_MAGIC 0x20141214
366 struct thandle ot_super;
368 /* OSP will use this thandle to update last oid*/
369 struct thandle *ot_storage_th;
371 struct list_head ot_commit_dcb_list;
372 struct list_head ot_stop_dcb_list;
373 struct osp_update_request *ot_our;
374 atomic_t ot_refcount;
377 static inline struct osp_thandle *
378 thandle_to_osp_thandle(struct thandle *th)
380 return container_of(th, struct osp_thandle, ot_super);
383 static inline struct osp_update_request *
384 thandle_to_osp_update_request(struct thandle *th)
386 struct osp_thandle *oth;
388 oth = thandle_to_osp_thandle(th);
392 /* The transaction only include the updates on the remote node, and
393 * no local updates at all */
394 static inline bool is_only_remote_trans(struct thandle *th)
396 return th->th_top == NULL;
399 static inline void osp_objid_buf_prep(struct lu_buf *buf, loff_t *off,
400 __u32 *id, int index)
402 /* Note: through id is only 32 bits, it will also write 64 bits
403 * for oid to keep compatibility with the previous version. */
404 buf->lb_buf = (void *)id;
405 buf->lb_len = sizeof(u64);
406 *off = sizeof(u64) * index;
409 static inline void osp_objseq_buf_prep(struct lu_buf *buf, loff_t *off,
410 __u64 *seq, int index)
412 buf->lb_buf = (void *)seq;
413 buf->lb_len = sizeof(u64);
414 *off = sizeof(u64) * index;
417 static inline void osp_buf_prep(struct lu_buf *lb, void *buf, int buf_len)
420 lb->lb_len = buf_len;
423 extern struct lu_context_key osp_thread_key;
425 static inline struct osp_thread_info *osp_env_info(const struct lu_env *env)
427 struct osp_thread_info *info;
429 info = lu_context_key_get(&env->le_ctx, &osp_thread_key);
431 lu_env_refill((struct lu_env *)env);
432 info = lu_context_key_get(&env->le_ctx, &osp_thread_key);
438 struct osp_txn_info {
439 __u64 oti_current_id;
442 extern struct lu_context_key osp_txn_key;
444 static inline struct osp_txn_info *osp_txn_info(struct lu_context *ctx)
446 struct osp_txn_info *info;
448 info = lu_context_key_get(ctx, &osp_txn_key);
452 extern const struct lu_device_operations osp_lu_ops;
454 static inline int lu_device_is_osp(struct lu_device *d)
456 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osp_lu_ops);
459 static inline struct osp_device *lu2osp_dev(struct lu_device *d)
461 LASSERT(lu_device_is_osp(d));
462 return container_of0(d, struct osp_device, opd_dt_dev.dd_lu_dev);
465 static inline struct lu_device *osp2lu_dev(struct osp_device *d)
467 return &d->opd_dt_dev.dd_lu_dev;
470 static inline struct osp_device *dt2osp_dev(struct dt_device *d)
472 LASSERT(lu_device_is_osp(&d->dd_lu_dev));
473 return container_of0(d, struct osp_device, opd_dt_dev);
476 static inline struct osp_object *lu2osp_obj(struct lu_object *o)
478 LASSERT(ergo(o != NULL, lu_device_is_osp(o->lo_dev)));
479 return container_of0(o, struct osp_object, opo_obj.do_lu);
482 static inline struct lu_object *osp2lu_obj(struct osp_object *obj)
484 return &obj->opo_obj.do_lu;
487 static inline struct osp_object *osp_obj(const struct lu_object *o)
489 LASSERT(lu_device_is_osp(o->lo_dev));
490 return container_of0(o, struct osp_object, opo_obj.do_lu);
493 static inline struct osp_object *dt2osp_obj(const struct dt_object *d)
495 return osp_obj(&d->do_lu);
498 static inline struct dt_object *osp_object_child(struct osp_object *o)
500 return container_of0(lu_object_next(osp2lu_obj(o)),
501 struct dt_object, do_lu);
504 static inline struct seq_server_site *osp_seq_site(struct osp_device *osp)
506 return osp->opd_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
509 #define osp_init_rpc_lock(lck) mdc_init_rpc_lock(lck)
511 static inline void osp_get_rpc_lock(struct osp_device *osp)
513 struct mdc_rpc_lock *rpc_lock = osp->opd_obd->u.cli.cl_rpc_lock;
515 mdc_get_rpc_lock(rpc_lock, NULL);
518 static inline void osp_put_rpc_lock(struct osp_device *osp)
520 struct mdc_rpc_lock *rpc_lock = osp->opd_obd->u.cli.cl_rpc_lock;
522 mdc_put_rpc_lock(rpc_lock, NULL);
525 static inline int osp_fid_diff(const struct lu_fid *fid1,
526 const struct lu_fid *fid2)
528 /* In 2.6+ ost_idx is packed into IDIF FID, while in 2.4 and 2.5 IDIF
529 * is always FID_SEQ_IDIF(0x100000000ULL), which does not include OST
530 * index in the seq. So we can not compare IDIF FID seq here */
531 if (fid_is_idif(fid1) && fid_is_idif(fid2)) {
532 __u32 ost_idx1 = fid_idif_ost_idx(fid1);
533 __u32 ost_idx2 = fid_idif_ost_idx(fid2);
535 LASSERTF(ost_idx1 == 0 || ost_idx2 == 0 || ost_idx1 == ost_idx2,
536 "fid1: "DFID", fid2: "DFID"\n", PFID(fid1),
539 return fid_idif_id(fid1->f_seq, fid1->f_oid, 0) -
540 fid_idif_id(fid2->f_seq, fid2->f_oid, 0);
543 LASSERTF(fid_seq(fid1) == fid_seq(fid2), "fid1:"DFID
544 ", fid2:"DFID"\n", PFID(fid1), PFID(fid2));
546 return fid_oid(fid1) - fid_oid(fid2);
550 static inline void osp_update_last_fid(struct osp_device *d, struct lu_fid *fid)
552 int diff = osp_fid_diff(fid, &d->opd_last_used_fid);
554 * we might have lost precreated objects due to VBR and precreate
555 * orphans, the gap in objid can be calculated properly only here
559 d->opd_gap_start_fid = d->opd_last_used_fid;
560 d->opd_gap_start_fid.f_oid++;
561 d->opd_gap_count = diff - 1;
562 CDEBUG(D_HA, "Gap in objids: start="DFID", count =%d\n",
563 PFID(&d->opd_gap_start_fid), d->opd_gap_count);
565 d->opd_last_used_fid = *fid;
569 static int osp_fid_end_seq(const struct lu_env *env, struct lu_fid *fid)
571 if (fid_is_idif(fid)) {
572 struct osp_thread_info *info = osp_env_info(env);
573 struct ost_id *oi = &info->osi_oi;
575 fid_to_ostid(fid, oi);
576 return ostid_id(oi) == IDIF_MAX_OID;
578 return fid_oid(fid) == LUSTRE_DATA_SEQ_MAX_WIDTH;
582 static inline int osp_precreate_end_seq_nolock(const struct lu_env *env,
583 struct osp_device *osp)
585 struct lu_fid *fid = &osp->opd_pre_last_created_fid;
587 return osp_fid_end_seq(env, fid);
590 static inline int osp_precreate_end_seq(const struct lu_env *env,
591 struct osp_device *osp)
595 spin_lock(&osp->opd_pre_lock);
596 rc = osp_precreate_end_seq_nolock(env, osp);
597 spin_unlock(&osp->opd_pre_lock);
601 static inline int osp_is_fid_client(struct osp_device *osp)
603 struct obd_import *imp = osp->opd_obd->u.cli.cl_import;
605 return imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_FID;
608 struct object_update *
609 update_buffer_get_update(struct object_update_request *request,
612 int osp_extend_update_buffer(const struct lu_env *env,
613 struct osp_update_request *our);
615 struct osp_update_request_sub *
616 osp_current_object_update_request(struct osp_update_request *our);
618 int osp_object_update_request_create(struct osp_update_request *our,
621 #define osp_update_rpc_pack(env, name, our, op, ...) \
623 struct object_update *object_update; \
624 size_t max_update_length; \
625 struct osp_update_request_sub *ours; \
629 ours = osp_current_object_update_request(our); \
630 LASSERT(ours != NULL); \
631 max_update_length = ours->ours_req_size - \
632 object_update_request_size(ours->ours_req); \
634 object_update = update_buffer_get_update(ours->ours_req,\
635 ours->ours_req->ourq_count); \
636 ret = out_##name##_pack(env, object_update, \
637 &max_update_length, \
639 if (ret == -E2BIG) { \
641 /* Create new object update request */ \
642 rc1 = osp_object_update_request_create(our, \
643 max_update_length + \
644 offsetof(struct object_update_request, \
645 ourq_updates[0]) + 1); \
653 ours->ours_req->ourq_count++; \
654 (our)->our_update_nr++; \
655 object_update->ou_batchid = \
657 object_update->ou_flags |= \
666 static inline bool osp_send_update_thread_running(struct osp_device *osp)
668 return osp->opd_update_thread.t_flags & SVC_RUNNING;
671 static inline bool osp_send_update_thread_stopped(struct osp_device *osp)
673 return osp->opd_update_thread.t_flags & SVC_STOPPED;
676 typedef int (*osp_update_interpreter_t)(const struct lu_env *env,
677 struct object_update_reply *rep,
678 struct ptlrpc_request *req,
679 struct osp_object *obj,
680 void *data, int index, int rc);
683 void osp_update_last_id(struct osp_device *d, u64 objid);
684 extern struct llog_operations osp_mds_ost_orig_logops;
687 int osp_insert_async_request(const struct lu_env *env, enum update_type op,
688 struct osp_object *obj, int count, __u16 *lens,
689 const void **bufs, void *data, __u32 repsize,
690 osp_update_interpreter_t interpreter);
692 int osp_unplug_async_request(const struct lu_env *env,
693 struct osp_device *osp,
694 struct osp_update_request *update);
695 int osp_trans_update_request_create(struct thandle *th);
696 struct thandle *osp_trans_create(const struct lu_env *env,
697 struct dt_device *d);
698 int osp_trans_start(const struct lu_env *env, struct dt_device *dt,
700 int osp_insert_update_callback(const struct lu_env *env,
701 struct osp_update_request *update,
702 struct osp_object *obj, void *data,
703 osp_update_interpreter_t interpreter);
705 struct osp_update_request *osp_update_request_create(struct dt_device *dt);
706 void osp_update_request_destroy(const struct lu_env *env,
707 struct osp_update_request *update);
709 int osp_send_update_thread(void *arg);
710 int osp_check_and_set_rpc_version(struct osp_thandle *oth,
711 struct osp_object *obj);
713 void osp_thandle_destroy(const struct lu_env *env, struct osp_thandle *oth);
714 static inline void osp_thandle_get(struct osp_thandle *oth)
716 atomic_inc(&oth->ot_refcount);
719 static inline void osp_thandle_put(const struct lu_env *env,
720 struct osp_thandle *oth)
722 if (atomic_dec_and_test(&oth->ot_refcount))
723 osp_thandle_destroy(env, oth);
726 int osp_prep_update_req(const struct lu_env *env, struct obd_import *imp,
727 struct osp_update_request *our,
728 struct ptlrpc_request **reqp);
729 int osp_remote_sync(const struct lu_env *env, struct osp_device *osp,
730 struct osp_update_request *update,
731 struct ptlrpc_request **reqp);
733 struct thandle *osp_get_storage_thandle(const struct lu_env *env,
735 struct osp_device *osp);
736 void osp_trans_callback(const struct lu_env *env,
737 struct osp_thandle *oth, int rc);
738 void osp_invalidate_request(struct osp_device *osp);
740 int osp_attr_get(const struct lu_env *env, struct dt_object *dt,
741 struct lu_attr *attr);
742 int osp_xattr_get(const struct lu_env *env, struct dt_object *dt,
743 struct lu_buf *buf, const char *name);
744 int osp_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
745 const struct lu_buf *buf, const char *name,
746 int flag, struct thandle *th);
747 int osp_xattr_set(const struct lu_env *env, struct dt_object *dt,
748 const struct lu_buf *buf, const char *name, int fl,
750 int osp_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
751 const char *name, struct thandle *th);
752 int osp_xattr_del(const struct lu_env *env, struct dt_object *dt,
753 const char *name, struct thandle *th);
754 int osp_invalidate(const struct lu_env *env, struct dt_object *dt);
755 void osp_obj_invalidate_cache(struct osp_object *obj);
757 int osp_trans_stop(const struct lu_env *env, struct dt_device *dt,
759 int osp_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb);
761 struct dt_it *osp_it_init(const struct lu_env *env, struct dt_object *dt,
763 void osp_it_fini(const struct lu_env *env, struct dt_it *di);
764 int osp_it_get(const struct lu_env *env, struct dt_it *di,
765 const struct dt_key *key);
766 void osp_it_put(const struct lu_env *env, struct dt_it *di);
767 __u64 osp_it_store(const struct lu_env *env, const struct dt_it *di);
768 int osp_it_key_rec(const struct lu_env *env, const struct dt_it *di,
770 int osp_it_next_page(const struct lu_env *env, struct dt_it *di);
771 /* osp_md_object.c */
772 int osp_md_declare_object_create(const struct lu_env *env,
773 struct dt_object *dt,
774 struct lu_attr *attr,
775 struct dt_allocation_hint *hint,
776 struct dt_object_format *dof,
778 int osp_md_object_create(const struct lu_env *env, struct dt_object *dt,
779 struct lu_attr *attr, struct dt_allocation_hint *hint,
780 struct dt_object_format *dof, struct thandle *th);
781 int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
782 const struct lu_attr *attr, struct thandle *th);
783 int osp_md_attr_set(const struct lu_env *env, struct dt_object *dt,
784 const struct lu_attr *attr, struct thandle *th);
785 extern const struct dt_index_operations osp_md_index_ops;
787 /* osp_precreate.c */
788 int osp_init_precreate(struct osp_device *d);
789 int osp_precreate_reserve(const struct lu_env *env, struct osp_device *d);
790 __u64 osp_precreate_get_id(struct osp_device *d);
791 int osp_precreate_get_fid(const struct lu_env *env, struct osp_device *d,
793 void osp_precreate_fini(struct osp_device *d);
794 int osp_object_truncate(const struct lu_env *env, struct dt_object *dt, __u64);
795 void osp_pre_update_status(struct osp_device *d, int rc);
796 void osp_statfs_need_now(struct osp_device *d);
797 int osp_reset_last_used(const struct lu_env *env, struct osp_device *osp);
798 int osp_write_last_oid_seq_files(struct lu_env *env, struct osp_device *osp,
799 struct lu_fid *fid, int sync);
800 int osp_init_pre_fid(struct osp_device *osp);
803 void osp_lprocfs_init(struct osp_device *osp);
806 int osp_sync_declare_add(const struct lu_env *env, struct osp_object *o,
807 llog_op_type type, struct thandle *th);
808 int osp_sync_add(const struct lu_env *env, struct osp_object *o,
809 llog_op_type type, struct thandle *th,
810 const struct lu_attr *attr);
811 int osp_sync_init(const struct lu_env *env, struct osp_device *d);
812 int osp_sync_fini(struct osp_device *d);
813 void __osp_sync_check_for_work(struct osp_device *d);
816 extern struct obd_ops lwp_obd_device_ops;
817 extern struct lu_device_type lwp_device_type;
819 static inline struct lu_device *osp2top(const struct osp_device *osp)
821 return osp->opd_dt_dev.dd_lu_dev.ld_site->ls_top_dev;
824 static inline void osp_set_req_replay(const struct osp_device *osp,
825 struct ptlrpc_request *req)
827 struct obd_device *obd = osp2top(osp)->ld_obd;
829 /* The RPC must be recovery related for the cases:
831 * 1. sent during recovery, or
832 * 2. sent before the recovery thread target_recovery_thread() start,
833 * such as triggered by lod_sub_recovery_thread(). */
834 if (obd->obd_recovering || (obd->obd_replayable && obd->obd_no_conn))
835 req->rq_allow_replay = 1;