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,
114 LNTF_SKIP_NLINK = 0x04,
118 enum lfsck_namespace_inconsistency_type {
121 LNIT_UNMATCHED_PAIRS = 2,
128 struct lfsck_namespace {
129 /* Magic number to detect that this struct contains valid data. */
132 /* See 'enum lfsck_status'. */
135 /* See 'enum lfsck_flags'. */
138 /* How many completed LFSCK runs on the device. */
139 __u32 ln_success_count;
141 /* How long the LFSCK phase1 has run in seconds. */
142 __u32 ln_run_time_phase1;
144 /* How long the LFSCK phase2 has run in seconds. */
145 __u32 ln_run_time_phase2;
147 /* Time for the last LFSCK completed in seconds since epoch. */
148 __u64 ln_time_last_complete;
150 /* Time for the latest LFSCK ran in seconds since epoch. */
151 __u64 ln_time_latest_start;
153 /* Time for the last LFSCK checkpoint in seconds since epoch. */
154 __u64 ln_time_last_checkpoint;
156 /* Position for the latest LFSCK started from. */
157 struct lfsck_position ln_pos_latest_start;
159 /* Position for the last LFSCK checkpoint. */
160 struct lfsck_position ln_pos_last_checkpoint;
162 /* Position for the first should be updated object. */
163 struct lfsck_position ln_pos_first_inconsistent;
165 /* How many items (including dir) have been checked. */
166 __u64 ln_items_checked;
168 /* How many items have been repaired. */
169 __u64 ln_items_repaired;
171 /* How many items failed to be processed. */
172 __u64 ln_items_failed;
174 /* How many directories have been traversed. */
175 __u64 ln_dirs_checked;
177 /* How many objects have been double scanned. */
178 __u64 ln_objs_checked_phase2;
180 /* How many objects have been reparied during double scan. */
181 __u64 ln_objs_repaired_phase2;
183 /* How many objects failed to be processed during double scan. */
184 __u64 ln_objs_failed_phase2;
186 /* How many objects with nlink fixed. */
187 __u64 ln_objs_nlink_repaired;
189 /* The latest object has been processed (failed) during double scan. */
190 struct lu_fid ln_fid_latest_scanned_phase2;
192 /* How many FID-in-dirent entries have been repaired. */
193 __u64 ln_dirent_repaired;
195 /* How many linkEA entries have been repaired. */
196 __u64 ln_linkea_repaired;
198 /* How many multiple-linked objects have been checked. */
199 __u64 ln_mul_linked_checked;
201 /* How many multiple-linked objects have been repaired. */
202 __u64 ln_mul_linked_repaired;
204 /* How many undefined inconsistency found in phase2. */
205 __u64 ln_unknown_inconsistency;
207 /* How many unmatched pairs have been repaired. */
208 __u64 ln_unmatched_pairs_repaired;
210 /* How many dangling name entries have been found/repaired. */
211 __u64 ln_dangling_repaired;
213 /* How many multiple referenced name entries have been
215 __u64 ln_mul_ref_repaired;
217 /* How many name entries with bad file type have been repaired. */
218 __u64 ln_bad_type_repaired;
220 /* How many lost name entries have been re-inserted. */
221 __u64 ln_lost_dirent_repaired;
223 /* The size of MDT targets bitmap with nbits. Such bitmap records
224 * the MDTs that contain non-verified MDT-objects. */
225 __u32 ln_bitmap_size;
228 /* For further using. 256-bytes aligned now. */
229 __u64 ln_reserved[25];
232 enum lfsck_layout_inconsistency_type {
235 LLIT_UNMATCHED_PAIR = 2,
236 LLIT_MULTIPLE_REFERENCED = 3,
238 LLIT_INCONSISTENT_OWNER = 5,
240 LLIT_MAX = LLIT_OTHERS
243 struct lfsck_layout {
244 /* Magic number to detect that this struct contains valid data. */
247 /* See 'enum lfsck_status'. */
250 /* See 'enum lfsck_flags'. */
253 /* How many completed LFSCK runs on the device. */
254 __u32 ll_success_count;
256 /* How long the LFSCK phase1 has run in seconds. */
257 __u32 ll_run_time_phase1;
259 /* How long the LFSCK phase2 has run in seconds. */
260 __u32 ll_run_time_phase2;
262 /* Time for the last LFSCK completed in seconds since epoch. */
263 __u64 ll_time_last_complete;
265 /* Time for the latest LFSCK ran in seconds since epoch. */
266 __u64 ll_time_latest_start;
268 /* Time for the last LFSCK checkpoint in seconds since epoch. */
269 __u64 ll_time_last_checkpoint;
271 /* Position for the latest LFSCK started from. */
272 __u64 ll_pos_latest_start;
274 /* Position for the last LFSCK checkpoint. */
275 __u64 ll_pos_last_checkpoint;
277 /* Position for the first object to be fixed or
278 * failed to be checked in the phase1. */
279 __u64 ll_pos_first_inconsistent;
281 /* How many objects have been checked. */
282 __u64 ll_objs_checked_phase1;
284 /* How many objects failed to be processed. */
285 __u64 ll_objs_failed_phase1;
287 /* How many objects have been double scanned. */
288 __u64 ll_objs_checked_phase2;
290 /* How many objects failed to be processed during double scan. */
291 __u64 ll_objs_failed_phase2;
293 /* kinds of inconsistency have been or to be repaired.
294 * ll_objs_repaired[type - 1] is the count for the given @type. */
295 __u64 ll_objs_repaired[LLIT_MAX];
297 /* How many objects have been skipped because of related
298 * MDT(s)/OST(s) do not participate in the LFSCK */
299 __u64 ll_objs_skipped;
301 /* The size of ll_ost_bitmap with nbits. */
302 __u32 ll_bitmap_size;
304 /* For further using. 256-bytes aligned now. */
306 __u64 ll_reserved_2[11];
308 /* The OST targets bitmap to record the OSTs that contain
309 * non-verified OST-objects. */
310 __u8 ll_ost_bitmap[0];
313 struct lfsck_component;
314 struct lfsck_tgt_descs;
315 struct lfsck_tgt_desc;
317 struct lfsck_operations {
318 int (*lfsck_reset)(const struct lu_env *env,
319 struct lfsck_component *com,
322 void (*lfsck_fail)(const struct lu_env *env,
323 struct lfsck_component *com,
326 int (*lfsck_checkpoint)(const struct lu_env *env,
327 struct lfsck_component *com,
330 int (*lfsck_prep)(const struct lu_env *env,
331 struct lfsck_component *com,
332 struct lfsck_start_param *lsp);
334 int (*lfsck_exec_oit)(const struct lu_env *env,
335 struct lfsck_component *com,
336 struct dt_object *obj);
338 int (*lfsck_exec_dir)(const struct lu_env *env,
339 struct lfsck_component *com,
340 struct lu_dirent *ent,
343 int (*lfsck_post)(const struct lu_env *env,
344 struct lfsck_component *com,
348 int (*lfsck_dump)(const struct lu_env *env,
349 struct lfsck_component *com,
352 int (*lfsck_double_scan)(const struct lu_env *env,
353 struct lfsck_component *com);
355 void (*lfsck_data_release)(const struct lu_env *env,
356 struct lfsck_component *com);
358 void (*lfsck_quit)(const struct lu_env *env,
359 struct lfsck_component *com);
361 int (*lfsck_in_notify)(const struct lu_env *env,
362 struct lfsck_component *com,
363 struct lfsck_request *lr,
366 int (*lfsck_query)(const struct lu_env *env,
367 struct lfsck_component *com);
369 int (*lfsck_join)(const struct lu_env *env,
370 struct lfsck_component *com,
371 struct lfsck_start_param *lsp);
374 #define TGT_PTRS 256 /* number of pointers at 1st level */
375 #define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
377 struct lfsck_tgt_desc {
378 struct list_head ltd_orphan_list;
379 struct dt_device *ltd_tgt;
380 struct dt_device *ltd_key;
381 struct obd_export *ltd_exp;
382 struct list_head ltd_layout_list;
383 struct list_head ltd_layout_phase_list;
384 struct list_head ltd_namespace_list;
385 struct list_head ltd_namespace_phase_list;
388 __u32 ltd_layout_gen;
389 __u32 ltd_namespace_gen;
390 unsigned int ltd_dead:1,
392 ltd_namespace_done:1,
393 ltd_namespace_failed:1;
396 struct lfsck_tgt_desc_idx {
397 struct lfsck_tgt_desc *ldi_tgts[TGT_PTRS_PER_BLOCK];
400 struct lfsck_tgt_descs {
401 /* list of known TGTs */
402 struct lfsck_tgt_desc_idx *ltd_tgts_idx[TGT_PTRS];
404 /* bitmap of TGTs available */
405 cfs_bitmap_t *ltd_tgts_bitmap;
407 /* for lfsck_tgt_desc::ltd_xxx_list */
410 /* for tgts table accessing and changes */
411 struct rw_semaphore ltd_rw_sem;
413 /* Temporary list for orphan targets. */
414 struct list_head ltd_orphan;
416 /* number of registered TGTs */
420 #define LTD_TGT(ltd, index) \
421 ((ltd)->ltd_tgts_idx[(index) / TGT_PTRS_PER_BLOCK]->\
422 ldi_tgts[(index) % TGT_PTRS_PER_BLOCK])
424 #define OST_TGT(lfsck, index) LTD_TGT(&lfsck->li_ost_descs, index)
425 #define MDT_TGT(lfsck, index) LTD_TGT(&lfsck->li_mdt_descs, index)
427 struct lfsck_component {
428 /* into lfsck_instance::li_list_(scan,double_scan,idle} */
429 struct list_head lc_link;
431 /* into lfsck_instance::li_list_dir */
432 struct list_head lc_link_dir;
434 struct rw_semaphore lc_sem;
437 struct lfsck_position lc_pos_start;
438 struct lfsck_instance *lc_lfsck;
439 struct dt_object *lc_obj;
440 struct lfsck_operations *lc_ops;
444 struct lu_fid lc_fid_latest_scanned_phase2;
446 /* The time for last checkpoint, jiffies */
447 cfs_time_t lc_time_last_checkpoint;
449 /* The time for next checkpoint, jiffies */
450 cfs_time_t lc_time_next_checkpoint;
454 /* How many objects have been checked since last checkpoint. */
455 __u32 lc_new_checked;
457 /* How many objects have been scanned since last sleep. */
458 __u32 lc_new_scanned;
463 struct lfsck_instance {
464 struct mutex li_mutex;
467 /* Link into the lfsck_instance_list. */
468 struct list_head li_link;
470 /* For the components in (first) scanning via otable-based iteration. */
471 struct list_head li_list_scan;
473 /* For the components in scanning via directory traversal. Because
474 * directory traversal cannot guarantee all the object be scanned,
475 * so the component in the li_list_dir must be in li_list_scan. */
476 struct list_head li_list_dir;
478 /* For the components in double scanning. */
479 struct list_head li_list_double_scan;
481 /* For the components those are not scanning now. */
482 struct list_head li_list_idle;
485 atomic_t li_double_scan_count;
486 struct ptlrpc_thread li_thread;
488 /* The time for last checkpoint, jiffies */
489 cfs_time_t li_time_last_checkpoint;
491 /* The time for next checkpoint, jiffies */
492 cfs_time_t li_time_next_checkpoint;
494 lfsck_out_notify li_out_notify;
495 void *li_out_notify_data;
496 struct dt_device *li_next;
497 struct dt_device *li_bottom;
498 struct obd_device *li_obd;
499 struct ldlm_namespace *li_namespace;
500 struct local_oid_storage *li_los;
501 struct lu_fid li_local_root_fid; /* backend root "/" */
502 struct lu_fid li_global_root_fid; /* /ROOT */
503 struct dt_object *li_bookmark_obj;
504 struct dt_object *li_lpf_obj;
505 struct lu_client_seq *li_seq;
506 struct lfsck_bookmark li_bookmark_ram;
507 struct lfsck_bookmark li_bookmark_disk;
508 struct lfsck_position li_pos_current;
509 struct lfsck_position li_pos_checkpoint;
511 /* Obj for otable-based iteration */
512 struct dt_object *li_obj_oit;
514 /* Obj for directory traversal */
515 struct dt_object *li_obj_dir;
517 /* It for otable-based iteration */
518 struct dt_it *li_di_oit;
520 /* It for directory traversal */
521 struct dt_it *li_di_dir;
523 /* Description of OST */
524 struct lfsck_tgt_descs li_ost_descs;
526 /* Description of MDT */
527 struct lfsck_tgt_descs li_mdt_descs;
529 /* namespace-based directory traversal position. */
532 /* Arguments for low layer otable-based iteration. */
535 /* Arugments for namespace-based directory traversal. */
538 /* Schedule for every N objects. */
541 /* Sleep N jiffies for each schedule. */
544 /* How many objects have been scanned since last sleep. */
545 __u32 li_new_scanned;
547 /* The status when the LFSCK stopped or paused. */
550 /* The flags when the lFSCK stopped or paused. */
553 unsigned int li_oit_over:1, /* oit is finished. */
554 li_drop_dryrun:1, /* Ever dryrun, not now. */
555 li_master:1, /* Master instance or not. */
556 li_current_oit_processed:1,
560 struct lfsck_async_interpret_args {
561 struct lfsck_component *laia_com;
562 struct lfsck_tgt_descs *laia_ltds;
563 struct lfsck_tgt_desc *laia_ltd;
564 struct lfsck_request *laia_lr;
565 atomic_t *laia_count;
567 unsigned int laia_shared:1;
570 struct lfsck_thread_args {
571 struct lu_env lta_env;
572 struct lfsck_instance *lta_lfsck;
573 struct lfsck_component *lta_com;
574 struct lfsck_start_param *lta_lsp;
577 struct lfsck_assistant_req {
578 struct list_head lar_list;
581 struct lfsck_namespace_req {
582 struct lfsck_assistant_req lnr_lar;
583 struct dt_object *lnr_obj;
584 struct lu_fid lnr_fid;
585 __u64 lnr_oit_cookie;
586 __u64 lnr_dir_cookie;
594 struct lfsck_assistant_operations {
595 int (*la_handler_p1)(const struct lu_env *env,
596 struct lfsck_component *com,
597 struct lfsck_assistant_req *lar);
599 int (*la_handler_p2)(const struct lu_env *env,
600 struct lfsck_component *com);
602 void (*la_fill_pos)(const struct lu_env *env,
603 struct lfsck_component *com,
604 struct lfsck_position *pos);
606 int (*la_double_scan_result)(const struct lu_env *env,
607 struct lfsck_component *com,
610 void (*la_req_fini)(const struct lu_env *env,
611 struct lfsck_assistant_req *lar);
613 void (*la_sync_failures)(const struct lu_env *env,
614 struct lfsck_component *com,
615 struct lfsck_request *lr);
618 struct lfsck_assistant_data {
620 struct list_head lad_req_list;
622 /* list for the ost targets involve LFSCK. */
623 struct list_head lad_ost_list;
625 /* list for the ost targets in phase1 scanning. */
626 struct list_head lad_ost_phase1_list;
628 /* list for the ost targets in phase1 scanning. */
629 struct list_head lad_ost_phase2_list;
631 /* list for the mdt targets involve LFSCK. */
632 struct list_head lad_mdt_list;
634 /* list for the mdt targets in phase1 scanning. */
635 struct list_head lad_mdt_phase1_list;
637 /* list for the mdt targets in phase1 scanning. */
638 struct list_head lad_mdt_phase2_list;
640 const char *lad_name;
641 struct ptlrpc_thread lad_thread;
643 struct lfsck_assistant_operations *lad_ops;
645 cfs_bitmap_t *lad_bitmap;
649 int lad_assistant_status;
651 unsigned int lad_to_post:1,
652 lad_to_double_scan:1,
653 lad_in_double_scan:1,
658 #define LFSCK_TMPBUF_LEN 64
660 struct lfsck_thread_info {
661 struct lu_name lti_name_const;
662 struct lu_name lti_name;
663 struct lu_name lti_name2;
664 struct lu_buf lti_buf;
665 struct lu_buf lti_linkea_buf;
666 struct lu_buf lti_linkea_buf2;
667 struct lu_buf lti_big_buf;
668 struct lu_fid lti_fid;
669 struct lu_fid lti_fid2;
670 struct lu_fid lti_fid3;
671 struct lu_fid lti_fid4;
672 struct lu_fid lti_fid5;
673 struct lu_attr lti_la;
674 struct lu_attr lti_la2;
675 struct lu_attr lti_la3;
676 struct ost_id lti_oi;
678 struct lustre_mdt_attrs lti_lma;
679 /* old LMA for compatibility */
680 char lti_lma_old[LMA_OLD_SIZE];
682 struct dt_object_format lti_dof;
683 /* There will be '\0' at the end of the name. */
684 char lti_key[sizeof(struct lu_dirent) + NAME_MAX + 1];
685 char lti_tmpbuf[LFSCK_TMPBUF_LEN];
686 struct lfsck_request lti_lr;
687 struct lfsck_async_interpret_args lti_laia;
688 struct lfsck_async_interpret_args lti_laia2;
689 struct lfsck_start lti_start;
690 struct lfsck_stop lti_stop;
691 ldlm_policy_data_t lti_policy;
692 struct ldlm_res_id lti_resid;
694 struct filter_fid_old lti_old_pfid;
695 struct filter_fid lti_new_pfid;
697 struct dt_allocation_hint lti_hint;
698 struct lu_orphan_rec lti_rec;
699 struct lov_user_md lti_lum;
700 struct dt_insert_rec lti_dt_rec;
701 struct lu_object_conf lti_conf;
702 struct lu_seq_range lti_range;
706 int lfsck_fid_alloc(const struct lu_env *env, struct lfsck_instance *lfsck,
707 struct lu_fid *fid, bool locked);
708 int lfsck_ibits_lock(const struct lu_env *env, struct lfsck_instance *lfsck,
709 struct dt_object *obj, struct lustre_handle *lh,
710 __u64 bits, ldlm_mode_t mode);
711 void lfsck_ibits_unlock(struct lustre_handle *lh, ldlm_mode_t mode);
712 int lfsck_find_mdt_idx_by_fid(const struct lu_env *env,
713 struct lfsck_instance *lfsck,
714 const struct lu_fid *fid);
715 int lfsck_create_lpf(const struct lu_env *env, struct lfsck_instance *lfsck);
716 int lfsck_verify_lpf(const struct lu_env *env, struct lfsck_instance *lfsck);
717 struct lfsck_instance *lfsck_instance_find(struct dt_device *key, bool ref,
719 struct lfsck_component *lfsck_component_find(struct lfsck_instance *lfsck,
721 const char *lfsck_status2names(enum lfsck_status status);
722 void lfsck_component_cleanup(const struct lu_env *env,
723 struct lfsck_component *com);
724 void lfsck_instance_cleanup(const struct lu_env *env,
725 struct lfsck_instance *lfsck);
726 int lfsck_bits_dump(struct seq_file *m, int bits, const char *names[],
728 int lfsck_time_dump(struct seq_file *m, __u64 time, const char *prefix);
729 int lfsck_pos_dump(struct seq_file *m, struct lfsck_position *pos,
731 void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck,
732 struct lfsck_position *pos, bool init);
733 bool __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit);
734 void lfsck_control_speed(struct lfsck_instance *lfsck);
735 void lfsck_control_speed_by_self(struct lfsck_component *com);
736 void lfsck_thread_args_fini(struct lfsck_thread_args *lta);
737 struct lfsck_assistant_data *
738 lfsck_assistant_data_init(struct lfsck_assistant_operations *lao,
740 int lfsck_async_interpret_common(const struct lu_env *env,
741 struct ptlrpc_request *req,
743 int lfsck_async_request(const struct lu_env *env, struct obd_export *exp,
744 struct lfsck_request *lr,
745 struct ptlrpc_request_set *set,
746 ptlrpc_interpterer_t interpterer,
747 void *args, int request);
748 int lfsck_start_assistant(const struct lu_env *env, struct lfsck_component *com,
749 struct lfsck_start_param *lsp);
750 int lfsck_checkpoint_generic(const struct lu_env *env,
751 struct lfsck_component *com);
752 void lfsck_post_generic(const struct lu_env *env,
753 struct lfsck_component *com, int *result);
754 int lfsck_double_scan_generic(const struct lu_env *env,
755 struct lfsck_component *com, int status);
756 void lfsck_quit_generic(const struct lu_env *env,
757 struct lfsck_component *com);
760 int lfsck_master_engine(void *args);
761 int lfsck_assistant_engine(void *args);
763 /* lfsck_bookmark.c */
764 void lfsck_bookmark_cpu_to_le(struct lfsck_bookmark *des,
765 struct lfsck_bookmark *src);
766 int lfsck_bookmark_store(const struct lu_env *env,
767 struct lfsck_instance *lfsck);
768 int lfsck_bookmark_setup(const struct lu_env *env,
769 struct lfsck_instance *lfsck);
770 int lfsck_set_param(const struct lu_env *env, struct lfsck_instance *lfsck,
771 struct lfsck_start *start, bool reset);
773 /* lfsck_namespace.c */
774 int lfsck_namespace_trace_update(const struct lu_env *env,
775 struct lfsck_component *com,
776 const struct lu_fid *fid,
777 const __u8 flags, bool add);
778 int __lfsck_links_read(const struct lu_env *env, struct dt_object *obj,
779 struct linkea_data *ldata);
780 int lfsck_namespace_rebuild_linkea(const struct lu_env *env,
781 struct lfsck_component *com,
782 struct dt_object *obj,
783 struct linkea_data *ldata);
784 int lfsck_namespace_repair_dangling(const struct lu_env *env,
785 struct lfsck_component *com,
786 struct dt_object *child,
787 struct lfsck_namespace_req *lnr);
788 int lfsck_namespace_repair_dirent(const struct lu_env *env,
789 struct lfsck_component *com,
790 struct dt_object *parent,
791 struct dt_object *child,
792 const char *name, const char *name2,
793 __u16 type, bool update, bool dec);
794 int lfsck_verify_linkea(const struct lu_env *env, struct dt_device *dev,
795 struct dt_object *obj, const struct lu_name *cname,
796 const struct lu_fid *pfid);
797 int lfsck_links_get_first(const struct lu_env *env, struct dt_object *obj,
798 char *name, struct lu_fid *pfid);
799 int lfsck_remove_name_entry(const struct lu_env *env,
800 struct lfsck_instance *lfsck,
801 struct dt_object *parent,
802 const char *name, __u32 type);
803 int lfsck_update_name_entry(const struct lu_env *env,
804 struct lfsck_instance *lfsck,
805 struct dt_object *parent, const char *name,
806 const struct lu_fid *pfid, __u32 type);
807 int lfsck_namespace_setup(const struct lu_env *env,
808 struct lfsck_instance *lfsck);
811 int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck);
813 extern const char dot[];
814 extern const char dotdot[];
815 extern const char *lfsck_flags_names[];
816 extern const char *lfsck_param_names[];
817 extern struct lu_context_key lfsck_thread_key;
819 static inline struct dt_device *lfsck_obj2dt_dev(struct dt_object *obj)
821 return container_of0(obj->do_lu.lo_dev, struct dt_device, dd_lu_dev);
824 static inline struct lfsck_thread_info *
825 lfsck_env_info(const struct lu_env *env)
827 struct lfsck_thread_info *info;
829 info = lu_context_key_get(&env->le_ctx, &lfsck_thread_key);
830 LASSERT(info != NULL);
834 static inline const struct lu_name *
835 lfsck_name_get_const(const struct lu_env *env, const void *area, ssize_t len)
837 struct lu_name *lname;
839 lname = &lfsck_env_info(env)->lti_name_const;
840 lname->ln_name = area;
841 lname->ln_namelen = len;
846 lfsck_buf_init(struct lu_buf *buf, void *area, ssize_t len)
852 static inline struct lu_buf *
853 lfsck_buf_get(const struct lu_env *env, void *area, ssize_t len)
857 buf = &lfsck_env_info(env)->lti_buf;
863 static inline const struct lu_buf *
864 lfsck_buf_get_const(const struct lu_env *env, const void *area, ssize_t len)
868 buf = &lfsck_env_info(env)->lti_buf;
869 buf->lb_buf = (void *)area;
874 static inline char *lfsck_lfsck2name(struct lfsck_instance *lfsck)
876 return lfsck->li_bottom->dd_lu_dev.ld_obd->obd_name;
879 static inline const struct lu_fid *lfsck_dto2fid(const struct dt_object *obj)
881 return lu_object_fid(&obj->do_lu);
884 static inline void lfsck_pos_set_zero(struct lfsck_position *pos)
886 memset(pos, 0, sizeof(*pos));
889 static inline int lfsck_pos_is_zero(const struct lfsck_position *pos)
891 return pos->lp_oit_cookie == 0 && fid_is_zero(&pos->lp_dir_parent);
894 static inline int lfsck_pos_is_eq(const struct lfsck_position *pos1,
895 const struct lfsck_position *pos2)
897 if (pos1->lp_oit_cookie < pos2->lp_oit_cookie)
900 if (pos1->lp_oit_cookie > pos2->lp_oit_cookie)
903 if (fid_is_zero(&pos1->lp_dir_parent) &&
904 !fid_is_zero(&pos2->lp_dir_parent))
907 if (!fid_is_zero(&pos1->lp_dir_parent) &&
908 fid_is_zero(&pos2->lp_dir_parent))
911 if (fid_is_zero(&pos1->lp_dir_parent) &&
912 fid_is_zero(&pos2->lp_dir_parent))
915 LASSERT(lu_fid_eq(&pos1->lp_dir_parent, &pos2->lp_dir_parent));
917 if (pos1->lp_dir_cookie < pos2->lp_dir_cookie)
920 if (pos1->lp_dir_cookie > pos2->lp_dir_cookie)
926 static void inline lfsck_position_le_to_cpu(struct lfsck_position *des,
927 struct lfsck_position *src)
929 des->lp_oit_cookie = le64_to_cpu(src->lp_oit_cookie);
930 fid_le_to_cpu(&des->lp_dir_parent, &src->lp_dir_parent);
931 des->lp_dir_cookie = le64_to_cpu(src->lp_dir_cookie);
934 static void inline lfsck_position_cpu_to_le(struct lfsck_position *des,
935 struct lfsck_position *src)
937 des->lp_oit_cookie = cpu_to_le64(src->lp_oit_cookie);
938 fid_cpu_to_le(&des->lp_dir_parent, &src->lp_dir_parent);
939 des->lp_dir_cookie = cpu_to_le64(src->lp_dir_cookie);
942 static inline umode_t lfsck_object_type(const struct dt_object *obj)
944 return lu_object_attr(&obj->do_lu);
947 static inline int lfsck_is_dead_obj(const struct dt_object *obj)
949 struct lu_object_header *loh = obj->do_lu.lo_header;
951 return !!test_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
954 static inline struct dt_object *lfsck_object_get(struct dt_object *obj)
956 lu_object_get(&obj->do_lu);
960 static inline void lfsck_object_put(const struct lu_env *env,
961 struct dt_object *obj)
963 lu_object_put(env, &obj->do_lu);
966 static inline u32 lfsck_dev_idx(struct dt_device *dev)
968 return dev->dd_lu_dev.ld_site->ld_seq_site->ss_node_id;
971 static inline struct dt_object *
972 lfsck_object_find_by_dev_nowait(const struct lu_env *env, struct dt_device *dev,
973 const struct lu_fid *fid)
975 struct lu_object_conf *conf = &lfsck_env_info(env)->lti_conf;
976 struct dt_object *obj;
978 conf->loc_flags = LOC_F_NOWAIT;
979 obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, conf));
980 if (unlikely(obj == NULL))
981 return ERR_PTR(-ENOENT);
986 static inline struct dt_object *
987 lfsck_object_find_by_dev(const struct lu_env *env, struct dt_device *dev,
988 const struct lu_fid *fid)
990 struct dt_object *obj;
992 obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, NULL));
993 if (unlikely(obj == NULL))
994 return ERR_PTR(-ENOENT);
999 static inline struct dt_object *lfsck_object_find(const struct lu_env *env,
1000 struct lfsck_instance *lfsck,
1001 const struct lu_fid *fid)
1003 return lfsck_object_find_by_dev(env, lfsck->li_next, fid);
1006 static inline struct dt_object *
1007 lfsck_object_find_bottom(const struct lu_env *env, struct lfsck_instance *lfsck,
1008 const struct lu_fid *fid)
1010 struct dt_device *dev;
1013 idx = lfsck_find_mdt_idx_by_fid(env, lfsck, fid);
1015 return ERR_PTR(idx);
1017 if (idx == lfsck_dev_idx(lfsck->li_bottom)) {
1018 dev = lfsck->li_bottom;
1020 struct lfsck_tgt_desc *ltd;
1022 ltd = LTD_TGT(&lfsck->li_mdt_descs, idx);
1023 if (unlikely(ltd == NULL))
1024 return ERR_PTR(-ENODEV);
1029 return lfsck_object_find_by_dev(env, dev, fid);
1032 static inline struct lfsck_tgt_desc *lfsck_tgt_get(struct lfsck_tgt_descs *ltds,
1035 struct lfsck_tgt_desc *ltd;
1037 ltd = LTD_TGT(ltds, index);
1039 atomic_inc(<d->ltd_ref);
1044 static inline void lfsck_tgt_put(struct lfsck_tgt_desc *ltd)
1046 if (atomic_dec_and_test(<d->ltd_ref))
1050 static inline struct lfsck_component *
1051 lfsck_component_get(struct lfsck_component *com)
1053 atomic_inc(&com->lc_ref);
1058 static inline void lfsck_component_put(const struct lu_env *env,
1059 struct lfsck_component *com)
1061 if (atomic_dec_and_test(&com->lc_ref)) {
1062 if (com->lc_obj != NULL)
1063 lu_object_put_nocache(env, &com->lc_obj->do_lu);
1064 if (com->lc_file_ram != NULL)
1065 OBD_FREE(com->lc_file_ram, com->lc_file_size);
1066 if (com->lc_file_disk != NULL)
1067 OBD_FREE(com->lc_file_disk, com->lc_file_size);
1068 if (com->lc_data != NULL) {
1069 LASSERT(com->lc_ops->lfsck_data_release != NULL);
1071 com->lc_ops->lfsck_data_release(env, com);
1078 static inline struct lfsck_instance *
1079 lfsck_instance_get(struct lfsck_instance *lfsck)
1081 atomic_inc(&lfsck->li_ref);
1086 static inline void lfsck_instance_put(const struct lu_env *env,
1087 struct lfsck_instance *lfsck)
1089 if (atomic_dec_and_test(&lfsck->li_ref))
1090 lfsck_instance_cleanup(env, lfsck);
1093 static inline bool lfsck_phase2_next_ready(struct lfsck_assistant_data *lad)
1095 return list_empty(&lad->lad_mdt_phase1_list) &&
1096 (!list_empty(&lad->lad_ost_phase2_list) ||
1097 list_empty(&lad->lad_ost_phase1_list));
1100 static inline void lfsck_lad_set_bitmap(const struct lu_env *env,
1101 struct lfsck_component *com,
1104 struct lfsck_assistant_data *lad = com->lc_data;
1105 cfs_bitmap_t *bitmap = lad->lad_bitmap;
1107 LASSERT(com->lc_lfsck->li_master);
1108 LASSERT(bitmap != NULL);
1110 if (likely(bitmap->size > index)) {
1111 cfs_bitmap_set(bitmap, index);
1112 lad->lad_incomplete = 1;
1113 } else if (com->lc_type == LFSCK_TYPE_NAMESPACE) {
1114 struct lfsck_namespace *ns = com->lc_file_ram;
1116 ns->ln_flags |= LF_INCOMPLETE;
1120 static inline int lfsck_links_read(const struct lu_env *env,
1121 struct dt_object *obj,
1122 struct linkea_data *ldata)
1125 lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf,
1128 return __lfsck_links_read(env, obj, ldata);
1131 static inline int lfsck_links_read2(const struct lu_env *env,
1132 struct dt_object *obj,
1133 struct linkea_data *ldata)
1136 lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf2,
1139 return __lfsck_links_read(env, obj, ldata);
1142 #endif /* _LFSCK_INTERNAL_H */