4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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).
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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 /* consumers (who needs new ids) wait here */
77 wait_queue_head_t osp_pre_user_waitq;
78 /* current precreation status: working, failed, stopping? */
80 /* how many objects to precreate next time */
81 int osp_pre_create_count;
82 int osp_pre_min_create_count;
83 int osp_pre_max_create_count;
84 /* whether to increase precreation window next time or not */
85 int osp_pre_create_slow;
86 /* cleaning up orphans or recreating missing objects */
87 int osp_pre_recovering;
90 struct osp_update_request_sub {
91 struct object_update_request *ours_req; /* may be vmalloc'd */
93 /* Linked to osp_update_request->our_req_list */
94 struct list_head ours_list;
97 struct osp_update_request {
99 /* update request result */
102 /* List of osp_update_request_sub */
103 struct list_head our_req_list;
107 struct list_head our_cb_items;
108 struct list_head our_invalidate_cb_list;
110 /* points to thandle if this update request belongs to one */
111 struct osp_thandle *our_th;
114 __u64 our_generation;
115 /* protect our_list and flag */
116 spinlock_t our_list_lock;
117 /* linked to the list(ou_list) in osp_updates */
118 struct list_head our_list;
120 __u32 our_req_ready:1;
125 struct list_head ou_list;
127 wait_queue_head_t ou_waitq;
129 /* The next rpc version which supposed to be sent in
130 * osp_send_update_thread().*/
131 __u64 ou_rpc_version;
133 /* The rpc version assigned to the osp thandle during (osp_md_write()),
134 * which will be sent by this order. Note: the osp_thandle has be sent
135 * by this order to make sure the remote update log will follow the
136 * llog format rule. XXX: these probably should be removed once we
137 * invent new llog format */
140 /* The generation of current osp update RPC, which is used to make sure
141 * those stale RPC(with older generation) will not be sent, otherwise it
142 * will cause update lllog corruption */
145 /* dedicate update thread */
146 struct task_struct *ou_update_task;
147 struct lu_env ou_env;
150 struct osp_rpc_lock {
151 /** Lock protecting in-flight RPC concurrency. */
152 struct mutex rpcl_mutex;
153 /** Used for MDS/RPC load testing purposes. */
154 unsigned int rpcl_fakes;
158 struct dt_device opd_dt_dev;
159 /* corresponded OST index */
162 /* corrsponded MDT index, which will be used when connecting to OST
163 * for validating the connection (see ofd_parse_connect_data) */
165 /* device used to store persistent state (llogs, last ids) */
166 struct obd_export *opd_storage_exp;
167 struct dt_device *opd_storage;
168 struct dt_object *opd_last_used_oid_file;
169 struct dt_object *opd_last_used_seq_file;
171 /* stored persistently in LE format, updated directly to/from disk
172 * and required le64_to_cpu() conversion before use.
173 * Protected by opd_pre_lock */
174 struct lu_fid opd_last_used_fid;
175 /* on disk copy last_used_fid.f_oid or idif */
177 struct lu_fid opd_gap_start_fid;
179 /* connection to OST */
180 struct osp_rpc_lock opd_rpc_lock;
181 struct obd_device *opd_obd;
182 struct obd_export *opd_exp;
183 struct obd_connect_data *opd_connect_data;
185 /* connection status. */
186 unsigned int opd_new_connection:1,
187 opd_got_disconnected:1,
190 opd_imp_seen_connected:1,
193 /* whether local recovery is completed:
194 * reported via ->ldo_recovery_complete() */
195 int opd_recovery_completed;
197 /* precreate structure for OSP */
198 struct osp_precreate *opd_pre;
199 /* dedicate precreate thread */
200 struct task_struct *opd_pre_task;
201 spinlock_t opd_pre_lock;
202 /* thread waits for signals about pool going empty */
203 wait_queue_head_t opd_pre_waitq;
205 /* send update thread */
206 struct osp_updates *opd_update;
209 * OST synchronization thread
211 spinlock_t opd_sync_lock;
212 /* unique generation, to recognize start of new records in the llog */
213 struct llog_gen opd_sync_generation;
214 /* number of changes to sync, used to wake up sync thread */
215 atomic_t opd_sync_changes;
216 /* limit of changes to sync */
217 int opd_sync_max_changes;
218 /* processing of changes from previous mount is done? */
219 int opd_sync_prev_done;
221 struct task_struct *opd_sync_task;
222 wait_queue_head_t opd_sync_waitq;
223 /* list of in flight rpcs */
224 struct list_head opd_sync_in_flight_list;
225 /* list of remotely committed rpc */
226 struct list_head opd_sync_committed_there;
227 /* number of RPCs in flight - flow control */
228 atomic_t opd_sync_rpcs_in_flight;
229 int opd_sync_max_rpcs_in_flight;
230 /* number of RPC in processing (including non-committed by OST) */
231 atomic_t opd_sync_rpcs_in_progress;
232 int opd_sync_max_rpcs_in_progress;
233 /* osd api's commit cb control structure */
234 struct dt_txn_callback opd_sync_txn_cb;
235 /* last used change number -- semantically similar to transno */
236 unsigned long opd_sync_last_used_id;
237 /* last committed change number -- semantically similar to
239 __u64 opd_sync_last_committed_id;
240 /* last processed catalog index */
241 int opd_sync_last_catalog_idx;
242 /* number of processed records */
243 atomic64_t opd_sync_processed_recs;
244 /* stop processing new requests until barrier=0 */
245 atomic_t opd_sync_barrier;
246 wait_queue_head_t opd_sync_barrier_waitq;
247 /* last generated id */
248 ktime_t opd_sync_next_commit_cb;
249 atomic_t opd_commits_registered;
252 * statfs related fields: OSP maintains it on its own
254 struct obd_statfs opd_statfs;
255 ktime_t opd_statfs_fresh_till;
256 struct timer_list opd_statfs_timer;
257 int opd_statfs_update_in_progress;
258 /* how often to update statfs data */
259 time64_t opd_statfs_maxage;
261 struct dentry *opd_debugfs;
263 /* If the caller wants to do some idempotent async operations on
264 * remote server, it can append the async remote requests on the
265 * osp_device::opd_async_requests via declare() functions, these
266 * requests can be packed together and sent to the remote server
267 * via single OUT RPC later. */
268 struct osp_update_request *opd_async_requests;
269 /* Protect current operations on opd_async_requests. */
270 struct mutex opd_async_requests_mutex;
271 struct list_head opd_async_updates;
272 struct rw_semaphore opd_async_updates_rwsem;
273 atomic_t opd_async_updates_count;
276 * Limit the object allocation using ENOSPC for opd_pre_status
278 int opd_reserved_mb_high;
279 int opd_reserved_mb_low;
282 #define opd_pre_used_fid opd_pre->osp_pre_used_fid
283 #define opd_pre_last_created_fid opd_pre->osp_pre_last_created_fid
284 #define opd_pre_reserved opd_pre->osp_pre_reserved
285 #define opd_pre_user_waitq opd_pre->osp_pre_user_waitq
286 #define opd_pre_status opd_pre->osp_pre_status
287 #define opd_pre_create_count opd_pre->osp_pre_create_count
288 #define opd_pre_min_create_count opd_pre->osp_pre_min_create_count
289 #define opd_pre_max_create_count opd_pre->osp_pre_max_create_count
290 #define opd_pre_create_slow opd_pre->osp_pre_create_slow
291 #define opd_pre_recovering opd_pre->osp_pre_recovering
293 extern struct kmem_cache *osp_object_kmem;
295 /* The first part of oxe_buf is xattr name, and is '\0' terminated.
296 * The left part is for value, binary mode. */
297 struct osp_xattr_entry {
298 struct list_head oxe_list;
301 unsigned int oxe_buflen;
302 unsigned int oxe_vallen;
303 unsigned short oxe_namelen;
304 unsigned short oxe_exist:1,
310 /* this is a top object */
312 struct lu_object_header opo_header;
313 struct dt_object opo_obj;
314 unsigned int opo_reserved:1,
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;
332 extern const struct lu_object_operations osp_lu_obj_ops;
333 extern const struct dt_object_operations osp_md_obj_ops;
334 extern const struct dt_body_operations osp_md_body_ops;
336 struct osp_thread_info {
337 struct lu_buf osi_lb;
338 struct lu_buf osi_lb2;
339 struct lu_fid osi_fid;
340 struct lu_attr osi_attr;
341 struct ost_id osi_oi;
342 struct ost_id osi_oi2;
345 struct llog_rec_hdr osi_hdr;
346 struct llog_unlink64_rec osi_unlink;
347 struct llog_setattr64_rec_v2 osi_setattr;
348 struct llog_gen_rec osi_gen;
350 struct llog_cookie osi_cookie;
351 struct llog_catid osi_cid;
352 struct lu_seq_range osi_seq;
353 struct ldlm_res_id osi_resid;
354 struct obdo osi_obdo;
357 /* Iterator for OSP */
360 __u32 ooi_pos_lu_page;
364 int ooi_total_npages;
365 int ooi_valid_npages;
366 unsigned int ooi_swab:1;
368 struct dt_object *ooi_obj;
370 struct page *ooi_cur_page;
371 struct lu_idxpage *ooi_cur_idxpage;
372 struct page **ooi_pages;
375 #define OSP_THANDLE_MAGIC 0x20141214
377 struct thandle ot_super;
379 /* OSP will use this thandle to update last oid*/
380 struct thandle *ot_storage_th;
382 struct list_head ot_commit_dcb_list;
383 struct list_head ot_stop_dcb_list;
384 struct osp_update_request *ot_our;
385 atomic_t ot_refcount;
388 static inline struct osp_thandle *
389 thandle_to_osp_thandle(struct thandle *th)
391 return container_of(th, struct osp_thandle, ot_super);
394 static inline struct osp_update_request *
395 thandle_to_osp_update_request(struct thandle *th)
397 struct osp_thandle *oth;
399 oth = thandle_to_osp_thandle(th);
403 /* The transaction only include the updates on the remote node, and
404 * no local updates at all */
405 static inline bool is_only_remote_trans(struct thandle *th)
407 return th->th_top == NULL;
410 static inline void osp_objid_buf_prep(struct lu_buf *buf, loff_t *off,
411 __u64 *id, int index)
413 /* Note: through id is only 32 bits, it will also write 64 bits
414 * for oid to keep compatibility with the previous version. */
415 buf->lb_buf = (void *)id;
416 buf->lb_len = sizeof(u64);
417 *off = sizeof(u64) * index;
420 static inline void osp_objseq_buf_prep(struct lu_buf *buf, loff_t *off,
421 __u64 *seq, int index)
423 buf->lb_buf = (void *)seq;
424 buf->lb_len = sizeof(u64);
425 *off = sizeof(u64) * index;
428 static inline void osp_buf_prep(struct lu_buf *lb, void *buf, int buf_len)
431 lb->lb_len = buf_len;
434 extern struct lu_context_key osp_thread_key;
436 static inline struct osp_thread_info *osp_env_info(const struct lu_env *env)
438 return lu_env_info(env, &osp_thread_key);
441 struct osp_txn_info {
442 __u64 oti_current_id;
445 extern struct lu_context_key osp_txn_key;
447 static inline struct osp_txn_info *osp_txn_info(struct lu_context *ctx)
449 struct osp_txn_info *info;
451 info = lu_context_key_get(ctx, &osp_txn_key);
455 extern const struct lu_device_operations osp_lu_ops;
457 static inline int lu_device_is_osp(struct lu_device *d)
459 return ergo(d != NULL && d->ld_ops != NULL, d->ld_ops == &osp_lu_ops);
462 static inline struct osp_device *lu2osp_dev(struct lu_device *d)
464 LASSERT(lu_device_is_osp(d));
465 return container_of_safe(d, struct osp_device, opd_dt_dev.dd_lu_dev);
468 static inline struct lu_device *osp2lu_dev(struct osp_device *d)
470 return &d->opd_dt_dev.dd_lu_dev;
473 static inline struct osp_device *dt2osp_dev(struct dt_device *d)
475 LASSERT(lu_device_is_osp(&d->dd_lu_dev));
476 return container_of_safe(d, struct osp_device, opd_dt_dev);
479 static inline struct osp_object *lu2osp_obj(struct lu_object *o)
481 LASSERT(ergo(o != NULL, lu_device_is_osp(o->lo_dev)));
482 return container_of_safe(o, struct osp_object, opo_obj.do_lu);
485 static inline struct lu_object *osp2lu_obj(struct osp_object *obj)
487 return &obj->opo_obj.do_lu;
490 static inline struct osp_object *osp_obj(const struct lu_object *o)
492 LASSERT(lu_device_is_osp(o->lo_dev));
493 return container_of_safe(o, struct osp_object, opo_obj.do_lu);
496 static inline struct osp_object *dt2osp_obj(const struct dt_object *d)
498 return osp_obj(&d->do_lu);
501 static inline struct dt_object *osp_object_child(struct osp_object *o)
503 return container_of(lu_object_next(osp2lu_obj(o)),
504 struct dt_object, do_lu);
507 static inline struct seq_server_site *osp_seq_site(struct osp_device *osp)
509 return osp->opd_dt_dev.dd_lu_dev.ld_site->ld_seq_site;
513 * Serializes in-flight MDT-modifying RPC requests to preserve idempotency.
515 * This mutex is used to implement execute-once semantics on the MDT.
516 * The MDT stores the last transaction ID and result for every client in
517 * its last_rcvd file. If the client doesn't get a reply, it can safely
518 * resend the request and the MDT will reconstruct the reply being aware
519 * that the request has already been executed. Without this lock,
520 * execution status of concurrent in-flight requests would be
523 * This imlpementation limits the extent to which we can keep a full pipeline
524 * of in-flight requests from a single client. This limitation can be
525 * overcome by allowing multiple slots per client in the last_rcvd file,
528 #define OSP_FAKE_RPCL_IT ((void *)0x2c0012bfUL)
530 static inline void osp_init_rpc_lock(struct osp_device *osp)
532 struct osp_rpc_lock *lck = &osp->opd_rpc_lock;
534 mutex_init(&lck->rpcl_mutex);
538 static inline void osp_get_rpc_lock(struct osp_device *osp)
540 struct osp_rpc_lock *lck = &osp->opd_rpc_lock;
542 /* This would normally block until the existing request finishes.
543 * If fail_loc is set it will block until the regular request is
544 * done, then increment rpcl_fakes. Once that is non-zero it
545 * will only be cleared when all fake requests are finished.
546 * Only when all fake requests are finished can normal requests
547 * be sent, to ensure they are recoverable again.
550 mutex_lock(&lck->rpcl_mutex);
552 if (CFS_FAIL_CHECK_QUIET(OBD_FAIL_MDC_RPCS_SEM) ||
553 CFS_FAIL_CHECK_QUIET(OBD_FAIL_OSP_RPCS_SEM)) {
555 mutex_unlock(&lck->rpcl_mutex);
560 /* This will only happen when the CFS_FAIL_CHECK() was just turned
561 * off but there are still requests in progress. Wait until they
562 * finish. It doesn't need to be efficient in this extremely rare
563 * case, just have low overhead in the common case when it isn't true.
565 if (unlikely(lck->rpcl_fakes)) {
566 mutex_unlock(&lck->rpcl_mutex);
567 schedule_timeout_uninterruptible(cfs_time_seconds(1) / 4);
573 static inline void osp_put_rpc_lock(struct osp_device *osp)
575 struct osp_rpc_lock *lck = &osp->opd_rpc_lock;
577 if (lck->rpcl_fakes) { /* OBD_FAIL_OSP_RPCS_SEM */
578 mutex_lock(&lck->rpcl_mutex);
580 if (lck->rpcl_fakes) /* check again under lock */
584 mutex_unlock(&lck->rpcl_mutex);
587 static inline int osp_fid_diff(const struct lu_fid *fid1,
588 const struct lu_fid *fid2)
590 /* In 2.6+ ost_idx is packed into IDIF FID, while in 2.4 and 2.5 IDIF
591 * is always FID_SEQ_IDIF(0x100000000ULL), which does not include OST
592 * index in the seq. So we can not compare IDIF FID seq here */
593 if (fid_is_idif(fid1) && fid_is_idif(fid2)) {
594 __u32 ost_idx1 = fid_idif_ost_idx(fid1);
595 __u32 ost_idx2 = fid_idif_ost_idx(fid2);
597 LASSERTF(ost_idx1 == 0 || ost_idx2 == 0 || ost_idx1 == ost_idx2,
598 "fid1: "DFID", fid2: "DFID"\n", PFID(fid1),
601 return fid_idif_id(fid1->f_seq, fid1->f_oid, 0) -
602 fid_idif_id(fid2->f_seq, fid2->f_oid, 0);
605 LASSERTF(fid_seq(fid1) == fid_seq(fid2), "fid1:"DFID", fid2:"DFID"\n",
606 PFID(fid1), PFID(fid2));
608 return fid_oid(fid1) - fid_oid(fid2);
611 static inline void osp_fid_to_obdid(struct lu_fid *last_fid, u64 *osi_id)
613 if (fid_is_idif((last_fid)))
614 *osi_id = fid_idif_id(fid_seq(last_fid), fid_oid(last_fid),
617 *osi_id = fid_oid(last_fid);
620 static inline void osp_update_last_fid(struct osp_device *d, struct lu_fid *fid)
622 int diff = osp_fid_diff(fid, &d->opd_last_used_fid);
623 struct lu_fid *gap_start = &d->opd_gap_start_fid;
626 * we might have lost precreated objects due to VBR and precreate
627 * orphans, the gap in objid can be calculated properly only here
631 d->opd_gap_start_fid = d->opd_last_used_fid;
632 if (fid_oid(gap_start) == LUSTRE_DATA_SEQ_MAX_WIDTH) {
634 gap_start->f_oid = fid_is_idif(gap_start) ?
639 d->opd_gap_count = diff - 1;
640 CDEBUG(D_HA, "Gap in objids: start="DFID", count =%d\n",
641 PFID(&d->opd_gap_start_fid), d->opd_gap_count);
643 d->opd_last_used_fid = *fid;
644 osp_fid_to_obdid(fid, &d->opd_last_id);
648 static int osp_fid_end_seq(const struct lu_env *env, struct lu_fid *fid)
650 if (fid_is_idif(fid)) {
651 struct osp_thread_info *info = osp_env_info(env);
652 struct ost_id *oi = &info->osi_oi;
654 fid_to_ostid(fid, oi);
655 return ostid_id(oi) == IDIF_MAX_OID;
657 return fid_oid(fid) == LUSTRE_DATA_SEQ_MAX_WIDTH;
661 static inline int osp_precreate_end_seq_nolock(const struct lu_env *env,
662 struct osp_device *osp)
664 struct lu_fid *fid = &osp->opd_pre_last_created_fid;
666 return osp_fid_end_seq(env, fid);
669 static inline int osp_precreate_end_seq(const struct lu_env *env,
670 struct osp_device *osp)
674 spin_lock(&osp->opd_pre_lock);
675 rc = osp_precreate_end_seq_nolock(env, osp);
676 spin_unlock(&osp->opd_pre_lock);
680 static inline int osp_is_fid_client(struct osp_device *osp)
682 struct obd_import *imp = osp->opd_obd->u.cli.cl_import;
684 return imp->imp_connect_data.ocd_connect_flags & OBD_CONNECT_FID;
687 struct object_update *
688 update_buffer_get_update(struct object_update_request *request,
691 int osp_extend_update_buffer(const struct lu_env *env,
692 struct osp_update_request *our);
694 struct osp_update_request_sub *
695 osp_current_object_update_request(struct osp_update_request *our);
697 int osp_object_update_request_create(struct osp_update_request *our,
700 #define OSP_UPDATE_RPC_PACK(env, out_something_pack, our, ...) \
702 struct object_update *object_update; \
703 size_t max_update_length; \
704 struct osp_update_request_sub *ours; \
708 ours = osp_current_object_update_request(our); \
709 LASSERT(ours != NULL); \
710 max_update_length = ours->ours_req_size - \
711 object_update_request_size(ours->ours_req); \
713 object_update = update_buffer_get_update(ours->ours_req,\
714 ours->ours_req->ourq_count); \
715 ret = out_something_pack(env, object_update, \
716 &max_update_length, \
718 if (ret == -E2BIG) { \
720 /* Create new object update request */ \
721 rc1 = osp_object_update_request_create(our, \
722 max_update_length + \
723 offsetof(struct object_update_request, \
724 ourq_updates[0]) + 1); \
732 ours->ours_req->ourq_count++; \
733 (our)->our_update_nr++; \
734 object_update->ou_batchid = \
736 object_update->ou_flags |= \
745 typedef int (*osp_update_interpreter_t)(const struct lu_env *env,
746 struct object_update_reply *rep,
747 struct ptlrpc_request *req,
748 struct osp_object *obj,
749 void *data, int index, int rc);
752 void osp_update_last_id(struct osp_device *d, u64 objid);
755 int osp_insert_async_request(const struct lu_env *env, enum update_type op,
756 struct osp_object *obj, int count, __u16 *lens,
757 const void **bufs, void *data, __u32 repsize,
758 osp_update_interpreter_t interpreter);
760 int osp_unplug_async_request(const struct lu_env *env,
761 struct osp_device *osp,
762 struct osp_update_request *update);
763 int osp_trans_update_request_create(struct thandle *th);
764 struct thandle *osp_trans_create(const struct lu_env *env,
765 struct dt_device *d);
766 int osp_trans_start(const struct lu_env *env, struct dt_device *dt,
768 int osp_insert_update_callback(const struct lu_env *env,
769 struct osp_update_request *update,
770 struct osp_object *obj, void *data,
771 osp_update_interpreter_t interpreter);
773 struct osp_update_request *osp_update_request_create(struct dt_device *dt);
774 void osp_update_request_destroy(const struct lu_env *env,
775 struct osp_update_request *update);
777 int osp_send_update_thread(void *arg);
778 int osp_check_and_set_rpc_version(struct osp_thandle *oth,
779 struct osp_object *obj);
781 void osp_thandle_destroy(const struct lu_env *env, struct osp_thandle *oth);
782 static inline void osp_thandle_get(struct osp_thandle *oth)
784 atomic_inc(&oth->ot_refcount);
787 static inline void osp_thandle_put(const struct lu_env *env,
788 struct osp_thandle *oth)
790 if (atomic_dec_and_test(&oth->ot_refcount))
791 osp_thandle_destroy(env, oth);
794 int osp_prep_update_req(const struct lu_env *env, struct obd_import *imp,
795 struct osp_update_request *our,
796 struct ptlrpc_request **reqp);
797 int osp_remote_sync(const struct lu_env *env, struct osp_device *osp,
798 struct osp_update_request *update,
799 struct ptlrpc_request **reqp);
801 struct thandle *osp_get_storage_thandle(const struct lu_env *env,
803 struct osp_device *osp);
804 void osp_trans_callback(const struct lu_env *env,
805 struct osp_thandle *oth, int rc);
806 void osp_invalidate_request(struct osp_device *osp);
808 int osp_attr_get(const struct lu_env *env, struct dt_object *dt,
809 struct lu_attr *attr);
810 int osp_xattr_get(const struct lu_env *env, struct dt_object *dt,
811 struct lu_buf *buf, const char *name);
812 int osp_declare_xattr_set(const struct lu_env *env, struct dt_object *dt,
813 const struct lu_buf *buf, const char *name,
814 int flag, struct thandle *th);
815 int osp_xattr_set(const struct lu_env *env, struct dt_object *dt,
816 const struct lu_buf *buf, const char *name, int fl,
818 int osp_declare_xattr_del(const struct lu_env *env, struct dt_object *dt,
819 const char *name, struct thandle *th);
820 int osp_xattr_del(const struct lu_env *env, struct dt_object *dt,
821 const char *name, struct thandle *th);
822 int osp_invalidate(const struct lu_env *env, struct dt_object *dt);
823 bool osp_check_stale(struct dt_object *dt);
824 void osp_obj_invalidate_cache(struct osp_object *obj);
826 int osp_trans_stop(const struct lu_env *env, struct dt_device *dt,
828 int osp_trans_cb_add(struct thandle *th, struct dt_txn_commit_cb *dcb);
830 struct dt_it *osp_it_init(const struct lu_env *env, struct dt_object *dt,
832 void osp_it_fini(const struct lu_env *env, struct dt_it *di);
833 int osp_it_get(const struct lu_env *env, struct dt_it *di,
834 const struct dt_key *key);
835 void osp_it_put(const struct lu_env *env, struct dt_it *di);
836 __u64 osp_it_store(const struct lu_env *env, const struct dt_it *di);
837 int osp_it_key_rec(const struct lu_env *env, const struct dt_it *di,
839 int osp_it_next_page(const struct lu_env *env, struct dt_it *di);
840 /* osp_md_object.c */
841 int osp_md_declare_create(const struct lu_env *env, struct dt_object *dt,
842 struct lu_attr *attr, struct dt_allocation_hint *hint,
843 struct dt_object_format *dof, struct thandle *th);
844 int osp_md_create(const struct lu_env *env, struct dt_object *dt,
845 struct lu_attr *attr, struct dt_allocation_hint *hint,
846 struct dt_object_format *dof, struct thandle *th);
847 int osp_md_declare_attr_set(const struct lu_env *env, struct dt_object *dt,
848 const struct lu_attr *attr, struct thandle *th);
849 int osp_md_attr_set(const struct lu_env *env, struct dt_object *dt,
850 const struct lu_attr *attr, struct thandle *th);
851 extern const struct dt_index_operations osp_md_index_ops;
853 /* osp_precreate.c */
854 int osp_init_precreate(struct osp_device *d);
855 int osp_precreate_reserve(const struct lu_env *env,
856 struct osp_device *d, bool can_block);
857 __u64 osp_precreate_get_id(struct osp_device *d);
858 int osp_precreate_get_fid(const struct lu_env *env, struct osp_device *d,
860 void osp_precreate_fini(struct osp_device *d);
861 int osp_object_truncate(const struct lu_env *env, struct dt_object *dt, __u64);
862 void osp_pre_update_status(struct osp_device *d, int rc);
863 void osp_statfs_need_now(struct osp_device *d);
864 int osp_reset_last_used(const struct lu_env *env, struct osp_device *osp);
865 int osp_write_last_oid_seq_files(struct lu_env *env, struct osp_device *osp,
866 struct lu_fid *fid, int sync);
867 int osp_init_pre_fid(struct osp_device *osp);
868 int osp_init_statfs(struct osp_device *osp);
869 void osp_fini_statfs(struct osp_device *osp);
870 void osp_statfs_fini(struct osp_device *d);
873 void osp_tunables_init(struct osp_device *osp);
874 void osp_tunables_fini(struct osp_device *osp);
877 int osp_sync_declare_add(const struct lu_env *env, struct osp_object *o,
878 enum llog_op_type type, struct thandle *th);
879 int osp_sync_add(const struct lu_env *env, struct osp_object *o,
880 enum llog_op_type type, struct thandle *th,
881 const struct lu_attr *attr);
882 int osp_sync_init(const struct lu_env *env, struct osp_device *d);
883 int osp_sync_fini(struct osp_device *d);
884 void osp_sync_check_for_work(struct osp_device *osp);
885 void osp_sync_force(const struct lu_env *env, struct osp_device *d);
886 int osp_sync_add_commit_cb_1s(const struct lu_env *env, struct osp_device *d,
890 extern const struct obd_ops lwp_obd_device_ops;
891 extern struct lu_device_type lwp_device_type;
893 static inline struct lu_device *osp2top(const struct osp_device *osp)
895 return osp->opd_dt_dev.dd_lu_dev.ld_site->ls_top_dev;
898 static inline void osp_set_req_replay(const struct osp_device *osp,
899 struct ptlrpc_request *req)
901 struct obd_device *obd = osp2top(osp)->ld_obd;
903 /* The RPC must be recovery related for the cases:
905 * 1. sent during recovery, or
906 * 2. sent before the recovery thread target_recovery_thread() start,
907 * such as triggered by lod_sub_recovery_thread(). */
908 if (obd->obd_recovering || (obd->obd_replayable && obd->obd_no_conn))
909 req->rq_allow_replay = 1;