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,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License version 2 for more details. A copy is
14 * included in the COPYING file that accompanied this code.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Copyright (c) 2013, Intel Corporation.
26 * lustre/lfsck/lfsck_internal.h
28 * Shared definitions and declarations for the LFSCK.
30 * Author: Fan, Yong <fan.yong@intel.com>
33 #ifndef _LFSCK_INTERNAL_H
34 # define _LFSCK_INTERNAL_H
36 #include <lustre/lustre_lfsck_user.h>
37 #include <lustre/lustre_user.h>
38 #include <lustre/lustre_idl.h>
39 #include <lustre_lfsck.h>
41 #include <lu_object.h>
42 #include <dt_object.h>
43 #include <md_object.h>
44 #include <lustre_net.h>
45 #include <lustre_dlm.h>
46 #include <lustre_fid.h>
47 #include <md_object.h>
48 #include <lustre_linkea.h>
50 #define HALF_SEC (HZ >> 1)
51 #define LFSCK_CHECKPOINT_INTERVAL 60
54 /* Finish the first cycle scanning. */
55 LF_SCANNED_ONCE = 0x00000001ULL,
57 /* There is some namespace inconsistency. */
58 LF_INCONSISTENT = 0x00000002ULL,
60 /* The device is upgraded from 1.8 format. */
61 LF_UPGRADE = 0x00000004ULL,
63 /* The server ever restarted during the LFSCK, and may miss to process
64 * some objects check/repair. */
65 LF_INCOMPLETE = 0x00000008ULL,
67 /* The LAST_ID (file) crashed. */
68 LF_CRASHED_LASTID = 0x00000010ULL,
71 struct lfsck_position {
72 /* low layer object table-based iteration position. */
75 /* parent FID for directory traversal. */
76 struct lu_fid lp_dir_parent;
78 /* namespace-based directory traversal position. */
82 struct lfsck_bookmark {
83 /* Magic number to detect that this struct contains valid data. */
86 /* For compatible with old versions. */
89 /* See 'enum lfsck_param_flags' */
92 /* How many items can be scanned at most per second. */
95 /* The windows size for async requests pipeline. */
96 __u16 lb_async_windows;
98 /* For 64-bits aligned. */
101 /* The FID for .lustre/lost+found/MDTxxxx */
102 struct lu_fid lb_lpf_fid;
104 /* The FID for the last MDT-object created by the LFSCK repairing. */
105 struct lu_fid lb_last_fid;
107 /* For future using. */
108 __u64 lb_reserved[2];
111 enum lfsck_namespace_trace_flags {
112 LNTF_CHECK_LINKEA = 0x01,
113 LNTF_CHECK_PARENT = 0x02,
117 enum lfsck_namespace_inconsistency_type {
120 LNIT_UNMATCHED_PAIRS = 2,
124 struct lfsck_namespace {
125 /* Magic number to detect that this struct contains valid data. */
128 /* See 'enum lfsck_status'. */
131 /* See 'enum lfsck_flags'. */
134 /* How many completed LFSCK runs on the device. */
135 __u32 ln_success_count;
137 /* How long the LFSCK phase1 has run in seconds. */
138 __u32 ln_run_time_phase1;
140 /* How long the LFSCK phase2 has run in seconds. */
141 __u32 ln_run_time_phase2;
143 /* Time for the last LFSCK completed in seconds since epoch. */
144 __u64 ln_time_last_complete;
146 /* Time for the latest LFSCK ran in seconds since epoch. */
147 __u64 ln_time_latest_start;
149 /* Time for the last LFSCK checkpoint in seconds since epoch. */
150 __u64 ln_time_last_checkpoint;
152 /* Position for the latest LFSCK started from. */
153 struct lfsck_position ln_pos_latest_start;
155 /* Position for the last LFSCK checkpoint. */
156 struct lfsck_position ln_pos_last_checkpoint;
158 /* Position for the first should be updated object. */
159 struct lfsck_position ln_pos_first_inconsistent;
161 /* How many items (including dir) have been checked. */
162 __u64 ln_items_checked;
164 /* How many items have been repaired. */
165 __u64 ln_items_repaired;
167 /* How many items failed to be processed. */
168 __u64 ln_items_failed;
170 /* How many directories have been traversed. */
171 __u64 ln_dirs_checked;
173 /* How many objects have been double scanned. */
174 __u64 ln_objs_checked_phase2;
176 /* How many objects have been reparied during double scan. */
177 __u64 ln_objs_repaired_phase2;
179 /* How many objects failed to be processed during double scan. */
180 __u64 ln_objs_failed_phase2;
182 /* How many objects with nlink fixed. */
183 __u64 ln_objs_nlink_repaired;
185 /* How many objects were lost before, but found back now. */
186 __u64 ln_objs_lost_found;
188 /* The latest object has been processed (failed) during double scan. */
189 struct lu_fid ln_fid_latest_scanned_phase2;
191 /* How many FID-in-dirent entries have been repaired. */
192 __u64 ln_dirent_repaired;
194 /* How many linkEA entries have been repaired. */
195 __u64 ln_linkea_repaired;
197 /* How many multiple-linked objects have been checked. */
198 __u64 ln_mul_linked_checked;
200 /* How many multiple-linked objects have been repaired. */
201 __u64 ln_mul_linked_repaired;
203 /* How many undefined inconsistency found in phase2. */
204 __u64 ln_unknown_inconsistency;
206 /* How many unmatched pairs have been repaired. */
207 __u64 ln_unmatched_pairs_repaired;
209 /* How many dangling name entries have been found/repaired. */
210 __u64 ln_dangling_repaired;
212 /* For further using. 256-bytes aligned now. */
213 __u64 ln_reserved[28];
216 enum lfsck_layout_inconsistency_type {
219 LLIT_UNMATCHED_PAIR = 2,
220 LLIT_MULTIPLE_REFERENCED = 3,
222 LLIT_INCONSISTENT_OWNER = 5,
224 LLIT_MAX = LLIT_OTHERS
227 struct lfsck_layout {
228 /* Magic number to detect that this struct contains valid data. */
231 /* See 'enum lfsck_status'. */
234 /* See 'enum lfsck_flags'. */
237 /* How many completed LFSCK runs on the device. */
238 __u32 ll_success_count;
240 /* How long the LFSCK phase1 has run in seconds. */
241 __u32 ll_run_time_phase1;
243 /* How long the LFSCK phase2 has run in seconds. */
244 __u32 ll_run_time_phase2;
246 /* Time for the last LFSCK completed in seconds since epoch. */
247 __u64 ll_time_last_complete;
249 /* Time for the latest LFSCK ran in seconds since epoch. */
250 __u64 ll_time_latest_start;
252 /* Time for the last LFSCK checkpoint in seconds since epoch. */
253 __u64 ll_time_last_checkpoint;
255 /* Position for the latest LFSCK started from. */
256 __u64 ll_pos_latest_start;
258 /* Position for the last LFSCK checkpoint. */
259 __u64 ll_pos_last_checkpoint;
261 /* Position for the first object to be fixed or
262 * failed to be checked in the phase1. */
263 __u64 ll_pos_first_inconsistent;
265 /* How many objects have been checked. */
266 __u64 ll_objs_checked_phase1;
268 /* How many objects failed to be processed. */
269 __u64 ll_objs_failed_phase1;
271 /* How many objects have been double scanned. */
272 __u64 ll_objs_checked_phase2;
274 /* How many objects failed to be processed during double scan. */
275 __u64 ll_objs_failed_phase2;
277 /* kinds of inconsistency have been or to be repaired.
278 * ll_objs_repaired[type - 1] is the count for the given @type. */
279 __u64 ll_objs_repaired[LLIT_MAX];
281 /* How many objects have been skipped because of related
282 * MDT(s)/OST(s) do not participate in the LFSCK */
283 __u64 ll_objs_skipped;
285 /* The size of ll_ost_bitmap with nbits. */
286 __u32 ll_bitmap_size;
288 /* For further using. 256-bytes aligned now. */
290 __u64 ll_reserved_2[11];
292 /* The OST targets bitmap to record the OSTs that contain
293 * non-verified OST-objects. */
294 __u8 ll_ost_bitmap[0];
297 struct lfsck_component;
298 struct lfsck_tgt_descs;
299 struct lfsck_tgt_desc;
301 struct lfsck_operations {
302 int (*lfsck_reset)(const struct lu_env *env,
303 struct lfsck_component *com,
306 void (*lfsck_fail)(const struct lu_env *env,
307 struct lfsck_component *com,
310 int (*lfsck_checkpoint)(const struct lu_env *env,
311 struct lfsck_component *com,
314 int (*lfsck_prep)(const struct lu_env *env,
315 struct lfsck_component *com,
316 struct lfsck_start_param *lsp);
318 int (*lfsck_exec_oit)(const struct lu_env *env,
319 struct lfsck_component *com,
320 struct dt_object *obj);
322 int (*lfsck_exec_dir)(const struct lu_env *env,
323 struct lfsck_component *com,
324 struct lu_dirent *ent,
327 int (*lfsck_post)(const struct lu_env *env,
328 struct lfsck_component *com,
332 int (*lfsck_dump)(const struct lu_env *env,
333 struct lfsck_component *com,
336 int (*lfsck_double_scan)(const struct lu_env *env,
337 struct lfsck_component *com);
339 void (*lfsck_data_release)(const struct lu_env *env,
340 struct lfsck_component *com);
342 void (*lfsck_quit)(const struct lu_env *env,
343 struct lfsck_component *com);
345 int (*lfsck_in_notify)(const struct lu_env *env,
346 struct lfsck_component *com,
347 struct lfsck_request *lr);
349 int (*lfsck_query)(const struct lu_env *env,
350 struct lfsck_component *com);
352 int (*lfsck_join)(const struct lu_env *env,
353 struct lfsck_component *com,
354 struct lfsck_start_param *lsp);
357 #define TGT_PTRS 256 /* number of pointers at 1st level */
358 #define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
360 struct lfsck_tgt_desc {
361 struct list_head ltd_orphan_list;
362 struct dt_device *ltd_tgt;
363 struct dt_device *ltd_key;
364 struct obd_export *ltd_exp;
365 struct list_head ltd_layout_list;
366 struct list_head ltd_layout_phase_list;
367 struct list_head ltd_namespace_list;
368 struct list_head ltd_namespace_phase_list;
371 __u32 ltd_layout_gen;
372 __u32 ltd_namespace_gen;
373 unsigned int ltd_dead:1,
375 ltd_namespace_done:1;
378 struct lfsck_tgt_desc_idx {
379 struct lfsck_tgt_desc *ldi_tgts[TGT_PTRS_PER_BLOCK];
382 struct lfsck_tgt_descs {
383 /* list of known TGTs */
384 struct lfsck_tgt_desc_idx *ltd_tgts_idx[TGT_PTRS];
386 /* bitmap of TGTs available */
387 cfs_bitmap_t *ltd_tgts_bitmap;
389 /* for lfsck_tgt_desc::ltd_xxx_list */
392 /* for tgts table accessing and changes */
393 struct rw_semaphore ltd_rw_sem;
395 /* Temporary list for orphan targets. */
396 struct list_head ltd_orphan;
398 /* number of registered TGTs */
402 #define LTD_TGT(ltd, index) \
403 ((ltd)->ltd_tgts_idx[(index) / TGT_PTRS_PER_BLOCK]->\
404 ldi_tgts[(index) % TGT_PTRS_PER_BLOCK])
406 #define OST_TGT(lfsck, index) LTD_TGT(&lfsck->li_ost_descs, index)
407 #define MDT_TGT(lfsck, index) LTD_TGT(&lfsck->li_mdt_descs, index)
409 struct lfsck_component {
410 /* into lfsck_instance::li_list_(scan,double_scan,idle} */
411 struct list_head lc_link;
413 /* into lfsck_instance::li_list_dir */
414 struct list_head lc_link_dir;
416 struct rw_semaphore lc_sem;
419 struct lfsck_position lc_pos_start;
420 struct lfsck_instance *lc_lfsck;
421 struct dt_object *lc_obj;
422 struct lfsck_operations *lc_ops;
426 struct lu_fid lc_fid_latest_scanned_phase2;
428 /* The time for last checkpoint, jiffies */
429 cfs_time_t lc_time_last_checkpoint;
431 /* The time for next checkpoint, jiffies */
432 cfs_time_t lc_time_next_checkpoint;
436 /* How many objects have been checked since last checkpoint. */
437 __u32 lc_new_checked;
439 /* How many objects have been scanned since last sleep. */
440 __u32 lc_new_scanned;
445 struct lfsck_instance {
446 struct mutex li_mutex;
449 /* Link into the lfsck_instance_list. */
450 struct list_head li_link;
452 /* For the components in (first) scanning via otable-based iteration. */
453 struct list_head li_list_scan;
455 /* For the components in scanning via directory traversal. Because
456 * directory traversal cannot guarantee all the object be scanned,
457 * so the component in the li_list_dir must be in li_list_scan. */
458 struct list_head li_list_dir;
460 /* For the components in double scanning. */
461 struct list_head li_list_double_scan;
463 /* For the components those are not scanning now. */
464 struct list_head li_list_idle;
467 atomic_t li_double_scan_count;
468 struct ptlrpc_thread li_thread;
470 /* The time for last checkpoint, jiffies */
471 cfs_time_t li_time_last_checkpoint;
473 /* The time for next checkpoint, jiffies */
474 cfs_time_t li_time_next_checkpoint;
476 lfsck_out_notify li_out_notify;
477 void *li_out_notify_data;
478 struct dt_device *li_next;
479 struct dt_device *li_bottom;
480 struct obd_device *li_obd;
481 struct ldlm_namespace *li_namespace;
482 struct local_oid_storage *li_los;
483 struct lu_fid li_local_root_fid; /* backend root "/" */
484 struct lu_fid li_global_root_fid; /* /ROOT */
485 struct dt_object *li_bookmark_obj;
486 struct dt_object *li_lpf_obj;
487 struct lu_client_seq *li_seq;
488 struct lfsck_bookmark li_bookmark_ram;
489 struct lfsck_bookmark li_bookmark_disk;
490 struct lfsck_position li_pos_current;
491 struct lfsck_position li_pos_checkpoint;
493 /* Obj for otable-based iteration */
494 struct dt_object *li_obj_oit;
496 /* Obj for directory traversal */
497 struct dt_object *li_obj_dir;
499 /* It for otable-based iteration */
500 struct dt_it *li_di_oit;
502 /* It for directory traversal */
503 struct dt_it *li_di_dir;
505 /* Description of OST */
506 struct lfsck_tgt_descs li_ost_descs;
508 /* Description of MDT */
509 struct lfsck_tgt_descs li_mdt_descs;
511 /* namespace-based directory traversal position. */
514 /* Arguments for low layer otable-based iteration. */
517 /* Arugments for namespace-based directory traversal. */
520 /* Schedule for every N objects. */
523 /* Sleep N jiffies for each schedule. */
526 /* How many objects have been scanned since last sleep. */
527 __u32 li_new_scanned;
529 /* The status when the LFSCK stopped or paused. */
532 /* The flags when the lFSCK stopped or paused. */
535 unsigned int li_oit_over:1, /* oit is finished. */
536 li_drop_dryrun:1, /* Ever dryrun, not now. */
537 li_master:1, /* Master instance or not. */
538 li_current_oit_processed:1,
542 struct lfsck_async_interpret_args {
543 struct lfsck_component *laia_com;
544 struct lfsck_tgt_descs *laia_ltds;
545 struct lfsck_tgt_desc *laia_ltd;
546 struct lfsck_request *laia_lr;
547 atomic_t *laia_count;
549 unsigned int laia_shared:1;
552 struct lfsck_thread_args {
553 struct lu_env lta_env;
554 struct lfsck_instance *lta_lfsck;
555 struct lfsck_component *lta_com;
556 struct lfsck_start_param *lta_lsp;
559 struct lfsck_assistant_req {
560 struct list_head lar_list;
563 struct lfsck_namespace_req {
564 struct lfsck_assistant_req lnr_lar;
565 struct dt_object *lnr_obj;
566 struct lu_fid lnr_fid;
567 __u64 lnr_oit_cookie;
568 __u64 lnr_dir_cookie;
576 struct lfsck_assistant_operations {
577 int (*la_handler_p1)(const struct lu_env *env,
578 struct lfsck_component *com,
579 struct lfsck_assistant_req *lar);
581 int (*la_handler_p2)(const struct lu_env *env,
582 struct lfsck_component *com);
584 void (*la_fill_pos)(const struct lu_env *env,
585 struct lfsck_component *com,
586 struct lfsck_position *pos);
588 int (*la_double_scan_result)(const struct lu_env *env,
589 struct lfsck_component *com,
592 void (*la_req_fini)(const struct lu_env *env,
593 struct lfsck_assistant_req *lar);
595 void (*la_sync_failures)(const struct lu_env *env,
596 struct lfsck_component *com,
597 struct lfsck_request *lr);
600 struct lfsck_assistant_data {
602 struct list_head lad_req_list;
604 /* list for the ost targets involve LFSCK. */
605 struct list_head lad_ost_list;
607 /* list for the ost targets in phase1 scanning. */
608 struct list_head lad_ost_phase1_list;
610 /* list for the ost targets in phase1 scanning. */
611 struct list_head lad_ost_phase2_list;
613 /* list for the mdt targets involve LFSCK. */
614 struct list_head lad_mdt_list;
616 /* list for the mdt targets in phase1 scanning. */
617 struct list_head lad_mdt_phase1_list;
619 /* list for the mdt targets in phase1 scanning. */
620 struct list_head lad_mdt_phase2_list;
622 const char *lad_name;
623 struct ptlrpc_thread lad_thread;
625 struct lfsck_assistant_operations *lad_ops;
627 cfs_bitmap_t *lad_bitmap;
631 int lad_assistant_status;
633 unsigned int lad_to_post:1,
634 lad_to_double_scan:1,
635 lad_in_double_scan:1,
640 #define LFSCK_TMPBUF_LEN 64
642 struct lfsck_thread_info {
643 struct lu_name lti_name_const;
644 struct lu_name lti_name;
645 struct lu_buf lti_buf;
646 struct lu_buf lti_linkea_buf;
647 struct lu_buf lti_linkea_buf2;
648 struct lu_buf lti_big_buf;
649 struct lu_fid lti_fid;
650 struct lu_fid lti_fid2;
651 struct lu_fid lti_fid3;
652 struct lu_fid lti_fid4;
653 struct lu_attr lti_la;
654 struct lu_attr lti_la2;
655 struct lu_attr lti_la3;
656 struct ost_id lti_oi;
658 struct lustre_mdt_attrs lti_lma;
659 /* old LMA for compatibility */
660 char lti_lma_old[LMA_OLD_SIZE];
662 struct dt_object_format lti_dof;
663 /* There will be '\0' at the end of the name. */
664 char lti_key[sizeof(struct lu_dirent) + NAME_MAX + 1];
665 char lti_tmpbuf[LFSCK_TMPBUF_LEN];
666 struct lfsck_request lti_lr;
667 struct lfsck_async_interpret_args lti_laia;
668 struct lfsck_async_interpret_args lti_laia2;
669 struct lfsck_start lti_start;
670 struct lfsck_stop lti_stop;
671 ldlm_policy_data_t lti_policy;
672 struct ldlm_res_id lti_resid;
674 struct filter_fid_old lti_old_pfid;
675 struct filter_fid lti_new_pfid;
677 struct dt_allocation_hint lti_hint;
678 struct lu_orphan_rec lti_rec;
679 struct lov_user_md lti_lum;
680 struct dt_insert_rec lti_dt_rec;
681 struct lu_object_conf lti_conf;
682 struct lu_seq_range lti_range;
686 int lfsck_fid_alloc(const struct lu_env *env, struct lfsck_instance *lfsck,
687 struct lu_fid *fid, bool locked);
688 int lfsck_ibits_lock(const struct lu_env *env, struct lfsck_instance *lfsck,
689 struct dt_object *obj, struct lustre_handle *lh,
690 __u64 bits, ldlm_mode_t mode);
691 void lfsck_ibits_unlock(struct lustre_handle *lh, ldlm_mode_t mode);
692 int lfsck_find_mdt_idx_by_fid(const struct lu_env *env,
693 struct lfsck_instance *lfsck,
694 const struct lu_fid *fid);
695 int lfsck_create_lpf(const struct lu_env *env, struct lfsck_instance *lfsck);
696 int lfsck_verify_lpf(const struct lu_env *env, struct lfsck_instance *lfsck);
697 struct lfsck_instance *lfsck_instance_find(struct dt_device *key, bool ref,
699 struct lfsck_component *lfsck_component_find(struct lfsck_instance *lfsck,
701 const char *lfsck_status2names(enum lfsck_status status);
702 void lfsck_component_cleanup(const struct lu_env *env,
703 struct lfsck_component *com);
704 void lfsck_instance_cleanup(const struct lu_env *env,
705 struct lfsck_instance *lfsck);
706 int lfsck_bits_dump(struct seq_file *m, int bits, const char *names[],
708 int lfsck_time_dump(struct seq_file *m, __u64 time, const char *prefix);
709 int lfsck_pos_dump(struct seq_file *m, struct lfsck_position *pos,
711 void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck,
712 struct lfsck_position *pos, bool init);
713 bool __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit);
714 void lfsck_control_speed(struct lfsck_instance *lfsck);
715 void lfsck_control_speed_by_self(struct lfsck_component *com);
716 void lfsck_thread_args_fini(struct lfsck_thread_args *lta);
717 struct lfsck_assistant_data *
718 lfsck_assistant_data_init(struct lfsck_assistant_operations *lao,
720 int lfsck_async_interpret_common(const struct lu_env *env,
721 struct ptlrpc_request *req,
723 int lfsck_async_request(const struct lu_env *env, struct obd_export *exp,
724 struct lfsck_request *lr,
725 struct ptlrpc_request_set *set,
726 ptlrpc_interpterer_t interpterer,
727 void *args, int request);
728 int lfsck_start_assistant(const struct lu_env *env, struct lfsck_component *com,
729 struct lfsck_start_param *lsp);
730 int lfsck_checkpoint_generic(const struct lu_env *env,
731 struct lfsck_component *com);
732 void lfsck_post_generic(const struct lu_env *env,
733 struct lfsck_component *com, int *result);
734 int lfsck_double_scan_generic(const struct lu_env *env,
735 struct lfsck_component *com, int status);
736 void lfsck_quit_generic(const struct lu_env *env,
737 struct lfsck_component *com);
740 int lfsck_master_engine(void *args);
741 int lfsck_assistant_engine(void *args);
743 /* lfsck_bookmark.c */
744 void lfsck_bookmark_cpu_to_le(struct lfsck_bookmark *des,
745 struct lfsck_bookmark *src);
746 int lfsck_bookmark_store(const struct lu_env *env,
747 struct lfsck_instance *lfsck);
748 int lfsck_bookmark_setup(const struct lu_env *env,
749 struct lfsck_instance *lfsck);
750 int lfsck_set_param(const struct lu_env *env, struct lfsck_instance *lfsck,
751 struct lfsck_start *start, bool reset);
753 /* lfsck_namespace.c */
754 int lfsck_namespace_trace_update(const struct lu_env *env,
755 struct lfsck_component *com,
756 const struct lu_fid *fid,
757 const __u8 flags, bool add);
758 int __lfsck_links_read(const struct lu_env *env, struct dt_object *obj,
759 struct linkea_data *ldata);
760 int lfsck_namespace_rebuild_linkea(const struct lu_env *env,
761 struct lfsck_component *com,
762 struct dt_object *obj,
763 struct linkea_data *ldata);
764 int lfsck_namespace_repair_dangling(const struct lu_env *env,
765 struct lfsck_component *com,
766 struct dt_object *child,
767 struct lfsck_namespace_req *lnr);
768 int lfsck_verify_linkea(const struct lu_env *env, struct dt_device *dev,
769 struct dt_object *obj, const struct lu_name *cname,
770 const struct lu_fid *pfid);
771 int lfsck_links_get_first(const struct lu_env *env, struct dt_object *obj,
772 char *name, struct lu_fid *pfid);
773 int lfsck_remove_name_entry(const struct lu_env *env,
774 struct lfsck_instance *lfsck,
775 struct dt_object *parent,
776 const char *name, __u32 type);
777 int lfsck_update_name_entry(const struct lu_env *env,
778 struct lfsck_instance *lfsck,
779 struct dt_object *parent, const char *name,
780 const struct lu_fid *pfid, __u32 type);
781 int lfsck_namespace_setup(const struct lu_env *env,
782 struct lfsck_instance *lfsck);
785 int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck);
787 extern const char dot[];
788 extern const char dotdot[];
789 extern const char *lfsck_flags_names[];
790 extern const char *lfsck_param_names[];
791 extern struct lu_context_key lfsck_thread_key;
793 static inline struct dt_device *lfsck_obj2dt_dev(struct dt_object *obj)
795 return container_of0(obj->do_lu.lo_dev, struct dt_device, dd_lu_dev);
798 static inline struct lfsck_thread_info *
799 lfsck_env_info(const struct lu_env *env)
801 struct lfsck_thread_info *info;
803 info = lu_context_key_get(&env->le_ctx, &lfsck_thread_key);
804 LASSERT(info != NULL);
808 static inline const struct lu_name *
809 lfsck_name_get_const(const struct lu_env *env, const void *area, ssize_t len)
811 struct lu_name *lname;
813 lname = &lfsck_env_info(env)->lti_name_const;
814 lname->ln_name = area;
815 lname->ln_namelen = len;
820 lfsck_buf_init(struct lu_buf *buf, void *area, ssize_t len)
826 static inline struct lu_buf *
827 lfsck_buf_get(const struct lu_env *env, void *area, ssize_t len)
831 buf = &lfsck_env_info(env)->lti_buf;
837 static inline const struct lu_buf *
838 lfsck_buf_get_const(const struct lu_env *env, const void *area, ssize_t len)
842 buf = &lfsck_env_info(env)->lti_buf;
843 buf->lb_buf = (void *)area;
848 static inline char *lfsck_lfsck2name(struct lfsck_instance *lfsck)
850 return lfsck->li_bottom->dd_lu_dev.ld_obd->obd_name;
853 static inline const struct lu_fid *lfsck_dto2fid(const struct dt_object *obj)
855 return lu_object_fid(&obj->do_lu);
858 static inline void lfsck_pos_set_zero(struct lfsck_position *pos)
860 memset(pos, 0, sizeof(*pos));
863 static inline int lfsck_pos_is_zero(const struct lfsck_position *pos)
865 return pos->lp_oit_cookie == 0 && fid_is_zero(&pos->lp_dir_parent);
868 static inline int lfsck_pos_is_eq(const struct lfsck_position *pos1,
869 const struct lfsck_position *pos2)
871 if (pos1->lp_oit_cookie < pos2->lp_oit_cookie)
874 if (pos1->lp_oit_cookie > pos2->lp_oit_cookie)
877 if (fid_is_zero(&pos1->lp_dir_parent) &&
878 !fid_is_zero(&pos2->lp_dir_parent))
881 if (!fid_is_zero(&pos1->lp_dir_parent) &&
882 fid_is_zero(&pos2->lp_dir_parent))
885 if (fid_is_zero(&pos1->lp_dir_parent) &&
886 fid_is_zero(&pos2->lp_dir_parent))
889 LASSERT(lu_fid_eq(&pos1->lp_dir_parent, &pos2->lp_dir_parent));
891 if (pos1->lp_dir_cookie < pos2->lp_dir_cookie)
894 if (pos1->lp_dir_cookie > pos2->lp_dir_cookie)
900 static void inline lfsck_position_le_to_cpu(struct lfsck_position *des,
901 struct lfsck_position *src)
903 des->lp_oit_cookie = le64_to_cpu(src->lp_oit_cookie);
904 fid_le_to_cpu(&des->lp_dir_parent, &src->lp_dir_parent);
905 des->lp_dir_cookie = le64_to_cpu(src->lp_dir_cookie);
908 static void inline lfsck_position_cpu_to_le(struct lfsck_position *des,
909 struct lfsck_position *src)
911 des->lp_oit_cookie = cpu_to_le64(src->lp_oit_cookie);
912 fid_cpu_to_le(&des->lp_dir_parent, &src->lp_dir_parent);
913 des->lp_dir_cookie = cpu_to_le64(src->lp_dir_cookie);
916 static inline umode_t lfsck_object_type(const struct dt_object *obj)
918 return lu_object_attr(&obj->do_lu);
921 static inline int lfsck_is_dead_obj(const struct dt_object *obj)
923 struct lu_object_header *loh = obj->do_lu.lo_header;
925 return !!test_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
928 static inline struct dt_object *lfsck_object_get(struct dt_object *obj)
930 lu_object_get(&obj->do_lu);
934 static inline void lfsck_object_put(const struct lu_env *env,
935 struct dt_object *obj)
937 lu_object_put(env, &obj->do_lu);
940 static inline u32 lfsck_dev_idx(struct dt_device *dev)
942 return dev->dd_lu_dev.ld_site->ld_seq_site->ss_node_id;
945 static inline struct dt_object *
946 lfsck_object_find_by_dev_nowait(const struct lu_env *env, struct dt_device *dev,
947 const struct lu_fid *fid)
949 struct lu_object_conf *conf = &lfsck_env_info(env)->lti_conf;
950 struct dt_object *obj;
952 conf->loc_flags = LOC_F_NOWAIT;
953 obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, conf));
954 if (unlikely(obj == NULL))
955 return ERR_PTR(-ENOENT);
960 static inline struct dt_object *
961 lfsck_object_find_by_dev(const struct lu_env *env, struct dt_device *dev,
962 const struct lu_fid *fid)
964 struct dt_object *obj;
966 obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, NULL));
967 if (unlikely(obj == NULL))
968 return ERR_PTR(-ENOENT);
973 static inline struct dt_object *lfsck_object_find(const struct lu_env *env,
974 struct lfsck_instance *lfsck,
975 const struct lu_fid *fid)
977 return lfsck_object_find_by_dev(env, lfsck->li_next, fid);
980 static inline struct dt_object *
981 lfsck_object_find_bottom(const struct lu_env *env, struct lfsck_instance *lfsck,
982 const struct lu_fid *fid)
984 struct dt_device *dev;
987 idx = lfsck_find_mdt_idx_by_fid(env, lfsck, fid);
991 if (idx == lfsck_dev_idx(lfsck->li_bottom)) {
992 dev = lfsck->li_bottom;
994 struct lfsck_tgt_desc *ltd;
996 ltd = LTD_TGT(&lfsck->li_mdt_descs, idx);
997 if (unlikely(ltd == NULL))
998 return ERR_PTR(-ENODEV);
1003 return lfsck_object_find_by_dev(env, dev, fid);
1006 static inline struct lfsck_tgt_desc *lfsck_tgt_get(struct lfsck_tgt_descs *ltds,
1009 struct lfsck_tgt_desc *ltd;
1011 ltd = LTD_TGT(ltds, index);
1013 atomic_inc(<d->ltd_ref);
1018 static inline void lfsck_tgt_put(struct lfsck_tgt_desc *ltd)
1020 if (atomic_dec_and_test(<d->ltd_ref))
1024 static inline struct lfsck_component *
1025 lfsck_component_get(struct lfsck_component *com)
1027 atomic_inc(&com->lc_ref);
1032 static inline void lfsck_component_put(const struct lu_env *env,
1033 struct lfsck_component *com)
1035 if (atomic_dec_and_test(&com->lc_ref)) {
1036 if (com->lc_obj != NULL)
1037 lu_object_put_nocache(env, &com->lc_obj->do_lu);
1038 if (com->lc_file_ram != NULL)
1039 OBD_FREE(com->lc_file_ram, com->lc_file_size);
1040 if (com->lc_file_disk != NULL)
1041 OBD_FREE(com->lc_file_disk, com->lc_file_size);
1042 if (com->lc_data != NULL) {
1043 LASSERT(com->lc_ops->lfsck_data_release != NULL);
1045 com->lc_ops->lfsck_data_release(env, com);
1052 static inline struct lfsck_instance *
1053 lfsck_instance_get(struct lfsck_instance *lfsck)
1055 atomic_inc(&lfsck->li_ref);
1060 static inline void lfsck_instance_put(const struct lu_env *env,
1061 struct lfsck_instance *lfsck)
1063 if (atomic_dec_and_test(&lfsck->li_ref))
1064 lfsck_instance_cleanup(env, lfsck);
1067 static inline bool lfsck_phase2_next_ready(struct lfsck_assistant_data *lad)
1069 return list_empty(&lad->lad_mdt_phase1_list) &&
1070 (!list_empty(&lad->lad_ost_phase2_list) ||
1071 list_empty(&lad->lad_ost_phase1_list));
1074 static inline void lfsck_lad_set_bitmap(const struct lu_env *env,
1075 struct lfsck_component *com,
1078 struct lfsck_assistant_data *lad = com->lc_data;
1079 cfs_bitmap_t *bitmap = lad->lad_bitmap;
1081 LASSERT(com->lc_lfsck->li_master);
1082 LASSERT(bitmap != NULL);
1083 LASSERTF(bitmap->size > index, "invalid index: nbits %d, index %u\n",
1084 bitmap->size, index);
1086 cfs_bitmap_set(bitmap, index);
1087 lad->lad_incomplete = 1;
1090 static inline int lfsck_links_read(const struct lu_env *env,
1091 struct dt_object *obj,
1092 struct linkea_data *ldata)
1095 lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf,
1098 return __lfsck_links_read(env, obj, ldata);
1101 static inline int lfsck_links_read2(const struct lu_env *env,
1102 struct dt_object *obj,
1103 struct linkea_data *ldata)
1106 lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf2,
1109 return __lfsck_links_read(env, obj, ldata);
1112 #endif /* _LFSCK_INTERNAL_H */