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,
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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, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * lustre/osp/osp_internal.h
33 * Author: Alex Zhuravlev <alexey.zhuravlev@intel.com>
36 #ifndef _OSP_INTERNAL_H
37 #define _OSP_INTERNAL_H
40 #include <obd_class.h>
41 #include <dt_object.h>
42 #include <md_object.h>
43 #include <lustre_fid.h>
44 #include <lustre_update.h>
45 #include <lu_target.h>
48 * Infrastructure to support tracking of last committed llog record
50 struct osp_id_tracker {
53 __u64 otr_committed_id;
54 /* callback is register once per diskfs -- that's the whole point */
55 struct dt_txn_callback otr_tx_cb;
56 /* single node can run many clusters */
57 struct list_head otr_wakeup_list;
58 struct list_head otr_list;
59 /* underlying shared device */
60 struct dt_device *otr_dev;
61 /* how many users of this tracker */
62 atomic_t otr_refcount;
65 struct osp_precreate {
70 /* last fid to assign in creation */
71 struct lu_fid osp_pre_used_fid;
72 /* last created id OST reported, next-created - available id's */
73 struct lu_fid osp_pre_last_created_fid;
74 /* how many ids are reserved in declare, we shouldn't block in create */
75 __u64 osp_pre_reserved;
76 __u64 osp_pre_seq_width;
77 /* consumers (who needs new ids) wait here */
78 wait_queue_head_t osp_pre_user_waitq;
79 /* current precreation status: working, failed, stopping? */
81 /* how many objects to precreate next time */
82 int osp_pre_create_count;
83 int osp_pre_min_create_count;
84 int osp_pre_max_create_count;
85 /* whether to increase precreation window next time or not */
86 int osp_pre_create_slow;
87 /* cleaning up orphans or recreating missing objects */
88 int osp_pre_recovering;
91 struct osp_update_request_sub {
92 struct object_update_request *ours_req; /* may be vmalloc'd */
94 /* Linked to osp_update_request->our_req_list */
95 struct list_head ours_list;
98 struct osp_update_request {
100 /* update request result */
103 /* List of osp_update_request_sub */
104 struct list_head our_req_list;
108 struct list_head our_cb_items;
109 struct list_head our_invalidate_cb_list;
111 /* points to thandle if this update request belongs to one */
112 struct osp_thandle *our_th;
115 __u64 our_generation;
116 /* protect our_list and flag */
117 spinlock_t our_list_lock;
118 /* linked to the list(ou_list) in osp_updates */
119 struct list_head our_list;
121 __u32 our_req_ready:1;
126 struct list_head ou_list;
128 wait_queue_head_t ou_waitq;
130 /* The next rpc version which supposed to be sent in
131 * osp_send_update_thread().*/
132 __u64 ou_rpc_version;
134 /* The rpc version assigned to the osp thandle during (osp_md_write()),
135 * which will be sent by this order. Note: the osp_thandle has be sent
136 * by this order to make sure the remote update log will follow the
137 * llog format rule. XXX: these probably should be removed once we
138 * invent new llog format */
141 /* The generation of current osp update RPC, which is used to make sure
142 * those stale RPC(with older generation) will not be sent, otherwise it
143 * will cause update lllog corruption */
146 /* dedicate update thread */
147 struct task_struct *ou_update_task;
148 struct lu_env ou_env;
152 struct dt_device opd_dt_dev;
153 /* corresponded OST index */
156 /* corrsponded MDT index, which will be used when connecting to OST
157 * for validating the connection (see ofd_parse_connect_data) */
159 /* device used to store persistent state (llogs, last ids) */
160 struct obd_export *opd_storage_exp;
161 struct dt_device *opd_storage;
162 struct dt_object *opd_last_used_oid_file;
163 struct dt_object *opd_last_used_seq_file;
165 /* stored persistently in LE format, updated directly to/from disk
166 * and required le64_to_cpu() conversion before use.
167 * Protected by opd_pre_lock */
168 struct lu_fid opd_last_used_fid;
169 /* on disk copy last_used_fid.f_oid or idif */
171 struct lu_fid opd_gap_start_fid;
173 struct obd_device *opd_obd;
174 struct obd_export *opd_exp;
175 struct obd_connect_data *opd_connect_data;
177 /* connection status. */
178 unsigned int opd_new_connection:1,
179 opd_got_disconnected:1,
182 opd_imp_seen_connected:1,
185 /* whether local recovery is completed:
186 * reported via ->ldo_recovery_complete() */
187 int opd_recovery_completed;
189 /* precreate structure for OSP */
190 struct osp_precreate *opd_pre;
191 /* dedicate precreate thread */
192 struct task_struct *opd_pre_task;
193 spinlock_t opd_pre_lock;
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;
201 * OST synchronization thread
203 spinlock_t opd_sync_lock;
204 /* unique generation, to recognize start of new records in the llog */
205 struct llog_gen opd_sync_generation;
206 /* number of changes to sync, used to wake up sync thread */
207 atomic_t opd_sync_changes;
208 /* limit of changes to sync */
209 int opd_sync_max_changes;
210 /* processing of changes from previous mount is done? */
211 int opd_sync_prev_done;
213 struct task_struct *opd_sync_task;
214 wait_queue_head_t opd_sync_waitq;
215 /* list of in flight rpcs */
216 struct list_head opd_sync_in_flight_list;
217 /* list of remotely committed rpc */
218 struct list_head opd_sync_committed_there;
219 /* number of RPCs in flight - flow control */
220 atomic_t opd_sync_rpcs_in_flight;
221 int opd_sync_max_rpcs_in_flight;
222 /* number of RPC in processing (including non-committed by OST) */
223 atomic_t opd_sync_rpcs_in_progress;
224 int opd_sync_max_rpcs_in_progress;
225 /* osd api's commit cb control structure */
226 struct dt_txn_callback opd_sync_txn_cb;
227 /* last used change number -- semantically similar to transno */
228 unsigned long opd_sync_last_used_id;
229 /* last committed change number -- semantically similar to
231 __u64 opd_sync_last_committed_id;
232 /* last processed catalog index */
233 int opd_sync_last_catalog_idx;
234 /* number of processed records */
235 atomic64_t opd_sync_processed_recs;
236 /* stop processing new requests until barrier=0 */
237 atomic_t opd_sync_barrier;
238 wait_queue_head_t opd_sync_barrier_waitq;
239 /* last generated id */
240 ktime_t opd_sync_next_commit_cb;
241 atomic_t opd_commits_registered;
244 * statfs related fields: OSP maintains it on its own
246 struct obd_statfs opd_statfs;
247 ktime_t opd_statfs_fresh_till;
248 struct timer_list opd_statfs_timer;
249 int opd_statfs_update_in_progress;
250 /* how often to update statfs data */
251 time64_t opd_statfs_maxage;
253 struct dentry *opd_debugfs;
255 /* If the caller wants to do some idempotent async operations on
256 * remote server, it can append the async remote requests on the
257 * osp_device::opd_async_requests via declare() functions, these
258 * requests can be packed together and sent to the remote server
259 * via single OUT RPC later. */
260 struct osp_update_request *opd_async_requests;
261 /* Protect current operations on opd_async_requests. */
262 struct mutex opd_async_requests_mutex;
263 struct list_head opd_async_updates;
264 struct rw_semaphore opd_async_updates_rwsem;
265 atomic_t opd_async_updates_count;
268 * Limit the object allocation using ENOSPC for opd_pre_status
270 unsigned int opd_reserved_mb_high;
271 unsigned int opd_reserved_mb_low;
272 unsigned int opd_reserved_ino_high;
273 unsigned int opd_reserved_ino_low;
275 wait_queue_head_t opd_out_waitq;
276 bool opd_cleanup_orphans_done;
277 bool opd_force_creation;
280 #define opd_pre_used_fid opd_pre->osp_pre_used_fid
281 #define opd_pre_last_created_fid opd_pre->osp_pre_last_created_fid
282 #define opd_pre_reserved opd_pre->osp_pre_reserved
283 #define opd_pre_seq_width opd_pre->osp_pre_seq_width
284 #define opd_pre_user_waitq opd_pre->osp_pre_user_waitq
285 #define opd_pre_status opd_pre->osp_pre_status
286 #define opd_pre_create_count opd_pre->osp_pre_create_count
287 #define opd_pre_min_create_count opd_pre->osp_pre_min_create_count
288 #define opd_pre_max_create_count opd_pre->osp_pre_max_create_count
289 #define opd_pre_create_slow opd_pre->osp_pre_create_slow
290 #define opd_pre_recovering opd_pre->osp_pre_recovering
292 extern struct kmem_cache *osp_object_kmem;
294 /* The first part of oxe_buf is xattr name, and is '\0' terminated.
295 * The left part is for value, binary mode. */
296 struct osp_xattr_entry {
297 struct list_head oxe_list;
300 unsigned int oxe_buflen;
301 unsigned int oxe_vallen;
302 unsigned short oxe_namelen;
303 unsigned short oxe_exist:1,
309 /* this is a top object */
311 struct lu_object_header opo_header;
312 struct dt_object opo_obj;
313 unsigned int opo_reserved:1,
317 opo_creating:1; /* create in progress */
319 /* read/write lock for md osp object */
320 struct rw_semaphore opo_sem;
321 const struct lu_env *opo_owner;
322 struct lu_attr opo_attr;
323 struct list_head opo_xattr_list;
324 struct list_head opo_invalidate_cb_list;
325 /* Protect opo_ooa. */
327 /* to implement in-flight invalidation */
328 atomic_t opo_invalidate_seq;
329 struct rw_semaphore opo_invalidate_sem;
330 atomic_t opo_writes_in_flight;
333 extern const struct lu_object_operations osp_lu_obj_ops;
334 extern const struct dt_object_operations osp_md_obj_ops;
335 extern const struct dt_body_operations osp_md_body_ops;
337 struct osp_thread_info {
338 struct lu_buf osi_lb;
339 struct lu_buf osi_lb2;
340 struct lu_fid osi_fid;
341 struct lu_attr osi_attr;
342 struct ost_id osi_oi;
343 struct ost_id osi_oi2;
346 struct llog_rec_hdr osi_hdr;
347 struct llog_unlink64_rec osi_unlink;
348 struct llog_setattr64_rec_v2 osi_setattr;
349 struct llog_gen_rec osi_gen;
351 struct llog_cookie osi_cookie;
352 struct llog_catid osi_cid;
353 struct lu_seq_range osi_seq;
354 struct ldlm_res_id osi_resid;
355 struct obdo osi_obdo;
358 /* Iterator for OSP */
361 __u32 ooi_pos_lu_page;
365 int ooi_total_npages;
366 int ooi_valid_npages;
367 unsigned int ooi_swab:1;
369 struct dt_object *ooi_obj;
371 struct page *ooi_cur_page;
372 struct lu_idxpage *ooi_cur_idxpage;
373 struct page **ooi_pages;
376 #define OSP_THANDLE_MAGIC 0x20141214
378 struct thandle ot_super;
380 /* OSP will use this thandle to update last oid*/
381 struct thandle *ot_storage_th;
383 struct list_head ot_commit_dcb_list;
384 struct list_head ot_stop_dcb_list;
385 struct osp_update_request *ot_our;
386 atomic_t ot_refcount;
389 static inline struct osp_thandle *
390 thandle_to_osp_thandle(struct thandle *th)
392 return container_of(th, struct osp_thandle, ot_super);
395 static inline struct osp_update_request *
396 thandle_to_osp_update_request(struct thandle *th)
398 struct osp_thandle *oth;
400 oth = thandle_to_osp_thandle(th);
404 /* The transaction only include the updates on the remote node, and
405 * no local updates at all */
406 static inline bool is_only_remote_trans(struct thandle *th)
408 return th->th_top == NULL;
411 static inline void osp_objid_buf_prep(struct lu_buf *buf, loff_t *off,
412 __u64 *id, int index)
414 /* Note: through id is only 32 bits, it will also write 64 bits
415 * for oid to keep compatibility with the previous version. */
416 buf->lb_buf = (void *)id;
417 buf->lb_len = sizeof(u64);
418 *off = sizeof(u64) * index;
421 static inline void osp_objseq_buf_prep(struct lu_buf *buf, loff_t *off,
422 __u64 *seq, int index)
424 buf->lb_buf = (void *)seq;
425 buf->lb_len = sizeof(u64);
426 *off = sizeof(u64) * index;
429 static inline void osp_buf_prep(struct lu_buf *lb, void *buf, int buf_len)
432 lb->lb_len = buf_len;
435 extern struct lu_context_key osp_thread_key;
437 static inline struct osp_thread_info *osp_env_info(const struct lu_env *env)
439 return lu_env_info(env, &osp_thread_key);
442 struct osp_txn_info {
443 __u64 oti_current_id;
446 extern struct lu_context_key osp_txn_key;
448 static inline struct osp_txn_info *osp_txn_info(struct lu_context *ctx)
450 struct osp_txn_info *info;
452 info = lu_context_key_get(ctx, &osp_txn_key);
456 extern const struct lu_device_operations osp_lu_ops;
458 static inline int lu_device_is_osp(struct lu_device *d)
460 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osp_lu_ops);
463 static inline struct osp_device *lu2osp_dev(struct lu_device *d)
465 LASSERT(lu_device_is_osp(d));
466 return container_of_safe(d, struct osp_device, opd_dt_dev.dd_lu_dev);
469 static inline struct lu_device *osp2lu_dev(struct osp_device *d)
471 return &d->opd_dt_dev.dd_lu_dev;
474 static inline struct osp_device *dt2osp_dev(struct dt_device *d)
476 LASSERT(lu_device_is_osp(&d->dd_lu_dev));
477 return container_of_safe(d, struct osp_device, opd_dt_dev);
480 static inline struct osp_object *lu2osp_obj(struct lu_object *o)
482 LASSERT(ergo(o != NULL, lu_device_is_osp(o->lo_dev)));
483 return container_of_safe(o, struct osp_object, opo_obj.do_lu);
486 static inline struct lu_object *osp2lu_obj(struct osp_object *obj)
488 return &obj->opo_obj.do_lu;
491 static inline struct osp_object *osp_obj(const struct lu_object *o)
493 LASSERT(lu_device_is_osp(o->lo_dev));
494 return container_of_safe(o, struct osp_object, opo_obj.do_lu);
497 static inline struct osp_object *dt2osp_obj(const struct dt_object *d)
499 return osp_obj(&d->do_lu);
502 static inline struct dt_object *osp_object_child(struct osp_object *o)
504 return container_of(lu_object_next(osp2lu_obj(o)),
505 struct dt_object, do_lu);
508 static inline struct seq_server_site *osp_seq_site(struct osp_device *osp)
510 return osp->opd_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
513 static inline int osp_fid_diff(const struct lu_fid *fid1,
514 const struct lu_fid *fid2)
516 /* In 2.6+ ost_idx is packed into IDIF FID, while in 2.4 and 2.5 IDIF
517 * is always FID_SEQ_IDIF(0x100000000ULL), which does not include OST
518 * index in the seq. So we can not compare IDIF FID seq here */
519 if (fid_is_idif(fid1) && fid_is_idif(fid2)) {
520 __u32 ost_idx1 = fid_idif_ost_idx(fid1);
521 __u32 ost_idx2 = fid_idif_ost_idx(fid2);
523 LASSERTF(ost_idx1 == 0 || ost_idx2 == 0 || ost_idx1 == ost_idx2,
524 "fid1: "DFID", fid2: "DFID"\n", PFID(fid1),
527 return fid_idif_id(fid1->f_seq, fid1->f_oid, 0) -
528 fid_idif_id(fid2->f_seq, fid2->f_oid, 0);
531 /* Changed to new seq before replay, we always start with oid 2 in
532 * a new seq. In this case just return 1.
534 if (fid_seq(fid1) != fid_seq(fid2) && fid_oid(fid1) == 2)
537 LASSERTF(fid_seq(fid1) == fid_seq(fid2), "fid1:"DFID", fid2:"DFID"\n",
538 PFID(fid1), PFID(fid2));
540 return fid_oid(fid1) - fid_oid(fid2);
543 static inline void osp_fid_to_obdid(struct lu_fid *last_fid, u64 *osi_id)
545 if (fid_is_idif((last_fid)))
546 *osi_id = fid_idif_id(fid_seq(last_fid), fid_oid(last_fid),
549 *osi_id = fid_oid(last_fid);
552 static inline void osp_update_last_fid(struct osp_device *d, struct lu_fid *fid)
554 int diff = osp_fid_diff(fid, &d->opd_last_used_fid);
555 struct lu_fid *gap_start = &d->opd_gap_start_fid;
558 * we might have lost precreated objects due to VBR and precreate
559 * orphans, the gap in objid can be calculated properly only here
563 d->opd_gap_start_fid = d->opd_last_used_fid;
564 if (fid_is_idif(gap_start) &&
565 unlikely(fid_oid(gap_start) == OBIF_MAX_OID)) {
567 __u32 idx = fid_idif_ost_idx(gap_start);
569 fid_to_ostid(gap_start, &oi);
571 ostid_to_fid(gap_start, &oi, idx);
575 d->opd_gap_count = diff - 1;
576 CDEBUG(D_HA, "Gap in objids: start="DFID", count =%d\n",
577 PFID(&d->opd_gap_start_fid), d->opd_gap_count);
579 d->opd_last_used_fid = *fid;
580 osp_fid_to_obdid(fid, &d->opd_last_id);
584 static bool osp_fid_end_seq(const struct lu_env *env, struct lu_fid *fid,
585 struct osp_device *osp)
587 __u64 seq_width = osp->opd_pre_seq_width;
589 /* Skip IDIF sequence for MDT0000 */
590 if (fid_is_idif(fid))
592 if (OBD_FAIL_CHECK(OBD_FAIL_OSP_FORCE_NEW_SEQ))
594 return fid_oid(fid) >= min(OBIF_MAX_OID, seq_width);
597 static inline bool osp_precreate_end_seq_nolock(const struct lu_env *env,
598 struct osp_device *osp)
600 struct lu_fid *fid = &osp->opd_pre_last_created_fid;
602 return osp_fid_end_seq(env, fid, osp);
605 static inline bool osp_precreate_end_seq(const struct lu_env *env,
606 struct osp_device *osp)
610 spin_lock(&osp->opd_pre_lock);
611 rc = osp_precreate_end_seq_nolock(env, osp);
612 spin_unlock(&osp->opd_pre_lock);
616 static inline int osp_is_fid_client(struct osp_device *osp)
618 struct obd_import *imp = osp->opd_obd->u.cli.cl_import;
620 return imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_FID;
623 struct object_update *
624 update_buffer_get_update(struct object_update_request *request,
627 int osp_extend_update_buffer(const struct lu_env *env,
628 struct osp_update_request *our);
630 struct osp_update_request_sub *
631 osp_current_object_update_request(struct osp_update_request *our);
633 int osp_object_update_request_create(struct osp_update_request *our,
636 #define OSP_UPDATE_RPC_PACK(env, out_something_pack, our, ...) \
638 struct object_update *object_update; \
639 size_t max_update_length; \
640 struct osp_update_request_sub *ours; \
644 ours = osp_current_object_update_request(our); \
645 LASSERT(ours != NULL); \
646 max_update_length = ours->ours_req_size - \
647 object_update_request_size(ours->ours_req); \
649 object_update = update_buffer_get_update(ours->ours_req,\
650 ours->ours_req->ourq_count); \
651 ret = out_something_pack(env, object_update, \
652 &max_update_length, \
654 if (ret == -E2BIG) { \
656 /* Create new object update request */ \
657 rc1 = osp_object_update_request_create(our, \
658 max_update_length + \
659 offsetof(struct object_update_request, \
660 ourq_updates[0]) + 1); \
668 ours->ours_req->ourq_count++; \
669 (our)->our_update_nr++; \
670 object_update->ou_batchid = \
672 object_update->ou_flags |= \
681 typedef int (*osp_update_interpreter_t)(const struct lu_env *env,
682 struct object_update_reply *rep,
683 struct ptlrpc_request *req,
684 struct osp_object *obj,
685 void *data, int index, int rc);
688 void osp_update_last_id(struct osp_device *d, u64 objid);
691 int osp_insert_async_request(const struct lu_env *env, enum update_type op,
692 struct osp_object *obj, int count, __u16 *lens,
693 const void **bufs, void *data, __u32 repsize,
694 osp_update_interpreter_t interpreter);
696 int osp_unplug_async_request(const struct lu_env *env,
697 struct osp_device *osp,
698 struct osp_update_request *update);
699 int osp_trans_update_request_create(struct thandle *th);
700 struct thandle *osp_trans_create(const struct lu_env *env,
701 struct dt_device *d);
702 int osp_trans_start(const struct lu_env *env, struct dt_device *dt,
704 int osp_insert_update_callback(const struct lu_env *env,
705 struct osp_update_request *update,
706 struct osp_object *obj, void *data,
707 osp_update_interpreter_t interpreter);
709 struct osp_update_request *osp_update_request_create(struct dt_device *dt);
710 void osp_update_request_destroy(const struct lu_env *env,
711 struct osp_update_request *update);
713 int osp_send_update_thread(void *arg);
714 int osp_check_and_set_rpc_version(struct osp_thandle *oth,
715 struct osp_object *obj);
717 void osp_thandle_destroy(const struct lu_env *env, struct osp_thandle *oth);
718 static inline void osp_thandle_get(struct osp_thandle *oth)
720 atomic_inc(&oth->ot_refcount);
723 static inline void osp_thandle_put(const struct lu_env *env,
724 struct osp_thandle *oth)
726 if (atomic_dec_and_test(&oth->ot_refcount))
727 osp_thandle_destroy(env, oth);
730 int osp_prep_update_req(const struct lu_env *env, struct obd_import *imp,
731 struct osp_update_request *our,
732 struct ptlrpc_request **reqp);
733 int osp_remote_sync(const struct lu_env *env, struct osp_device *osp,
734 struct osp_update_request *update,
735 struct ptlrpc_request **reqp);
737 struct thandle *osp_get_storage_thandle(const struct lu_env *env,
739 struct osp_device *osp);
740 void osp_trans_callback(const struct lu_env *env,
741 struct osp_thandle *oth, int rc);
742 void osp_invalidate_request(struct osp_device *osp);
744 int osp_attr_get(const struct lu_env *env, struct dt_object *dt,
745 struct lu_attr *attr);
746 int osp_xattr_get(const struct lu_env *env, struct dt_object *dt,
747 struct lu_buf *buf, const char *name);
748 int osp_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
749 const struct lu_buf *buf, const char *name,
750 int flag, struct thandle *th);
751 int osp_xattr_set(const struct lu_env *env, struct dt_object *dt,
752 const struct lu_buf *buf, const char *name, int fl,
754 int osp_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
755 const char *name, struct thandle *th);
756 int osp_xattr_del(const struct lu_env *env, struct dt_object *dt,
757 const char *name, struct thandle *th);
758 int osp_invalidate(const struct lu_env *env, struct dt_object *dt);
759 bool osp_check_stale(struct dt_object *dt);
760 void osp_obj_invalidate_cache(struct osp_object *obj);
762 int osp_trans_stop(const struct lu_env *env, struct dt_device *dt,
764 int osp_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb);
766 struct dt_it *osp_it_init(const struct lu_env *env, struct dt_object *dt,
768 void osp_it_fini(const struct lu_env *env, struct dt_it *di);
769 int osp_it_get(const struct lu_env *env, struct dt_it *di,
770 const struct dt_key *key);
771 void osp_it_put(const struct lu_env *env, struct dt_it *di);
772 __u64 osp_it_store(const struct lu_env *env, const struct dt_it *di);
773 int osp_it_key_rec(const struct lu_env *env, const struct dt_it *di,
775 int osp_it_next_page(const struct lu_env *env, struct dt_it *di);
776 /* osp_md_object.c */
777 int osp_md_declare_create(const struct lu_env *env, struct dt_object *dt,
778 struct lu_attr *attr, struct dt_allocation_hint *hint,
779 struct dt_object_format *dof, struct thandle *th);
780 int osp_md_create(const struct lu_env *env, struct dt_object *dt,
781 struct lu_attr *attr, struct dt_allocation_hint *hint,
782 struct dt_object_format *dof, struct thandle *th);
783 int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
784 const struct lu_attr *attr, struct thandle *th);
785 int osp_md_attr_set(const struct lu_env *env, struct dt_object *dt,
786 const struct lu_attr *attr, struct thandle *th);
787 extern const struct dt_index_operations osp_md_index_ops;
789 /* osp_precreate.c */
790 int osp_init_precreate(struct osp_device *d);
791 int osp_precreate_reserve(const struct lu_env *env,
792 struct osp_device *d, bool can_block);
793 __u64 osp_precreate_get_id(struct osp_device *d);
794 int osp_precreate_get_fid(const struct lu_env *env, struct osp_device *d,
796 void osp_precreate_fini(struct osp_device *d);
797 int osp_object_truncate(const struct lu_env *env, struct dt_object *dt, __u64);
798 void osp_pre_update_status(struct osp_device *d, int rc);
799 void osp_statfs_need_now(struct osp_device *d);
800 int osp_reset_last_used(const struct lu_env *env, struct osp_device *osp);
801 int osp_write_last_oid_seq_files(struct lu_env *env, struct osp_device *osp,
802 struct lu_fid *fid, int sync);
803 int osp_init_statfs(struct osp_device *osp);
804 void osp_fini_statfs(struct osp_device *osp);
805 void osp_statfs_fini(struct osp_device *d);
808 void osp_tunables_init(struct osp_device *osp);
809 void osp_tunables_fini(struct osp_device *osp);
812 int osp_sync_declare_add(const struct lu_env *env, struct osp_object *o,
813 enum llog_op_type type, struct thandle *th);
814 int osp_sync_add(const struct lu_env *env, struct osp_object *o,
815 enum llog_op_type type, struct thandle *th,
816 const struct lu_attr *attr);
817 int osp_sync_init(const struct lu_env *env, struct osp_device *d);
818 int osp_sync_fini(struct osp_device *d);
819 void osp_sync_check_for_work(struct osp_device *osp);
820 void osp_sync_force(const struct lu_env *env, struct osp_device *d);
821 int osp_sync_add_commit_cb_1s(const struct lu_env *env, struct osp_device *d,
825 extern const struct obd_ops lwp_obd_device_ops;
826 extern struct lu_device_type lwp_device_type;
828 static inline struct lu_device *osp2top(const struct osp_device *osp)
830 return osp->opd_dt_dev.dd_lu_dev.ld_site->ls_top_dev;
833 static inline void osp_set_req_replay(const struct osp_device *osp,
834 struct ptlrpc_request *req)
836 struct obd_device *obd = osp2top(osp)->ld_obd;
838 /* The RPC must be recovery related for the cases:
840 * 1. sent during recovery, or
841 * 2. sent before the recovery thread target_recovery_thread() start,
842 * such as triggered by lod_sub_recovery_thread(). */
843 if (obd->obd_recovering || (obd->obd_replayable && obd->obd_no_conn))
844 req->rq_allow_replay = 1;