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,
115 LNTF_CHECK_ORPHAN = 0x08,
116 LNTF_UNCERTAIN_LMV = 0x10,
117 LNTF_RECHECK_NAME_HASH = 0x20,
121 enum lfsck_namespace_inconsistency_type {
124 LNIT_UNMATCHED_PAIRS = 2,
131 struct lfsck_namespace {
132 /* Magic number to detect that this struct contains valid data. */
135 /* See 'enum lfsck_status'. */
138 /* See 'enum lfsck_flags'. */
141 /* How many completed LFSCK runs on the device. */
142 __u32 ln_success_count;
144 /* How long the LFSCK phase1 has run in seconds. */
145 __u32 ln_run_time_phase1;
147 /* How long the LFSCK phase2 has run in seconds. */
148 __u32 ln_run_time_phase2;
150 /* Time for the last LFSCK completed in seconds since epoch. */
151 __u64 ln_time_last_complete;
153 /* Time for the latest LFSCK ran in seconds since epoch. */
154 __u64 ln_time_latest_start;
156 /* Time for the last LFSCK checkpoint in seconds since epoch. */
157 __u64 ln_time_last_checkpoint;
159 /* Position for the latest LFSCK started from. */
160 struct lfsck_position ln_pos_latest_start;
162 /* Position for the last LFSCK checkpoint. */
163 struct lfsck_position ln_pos_last_checkpoint;
165 /* Position for the first should be updated object. */
166 struct lfsck_position ln_pos_first_inconsistent;
168 /* How many items (including dir) have been checked. */
169 __u64 ln_items_checked;
171 /* How many items have been repaired. */
172 __u64 ln_items_repaired;
174 /* How many items failed to be processed. */
175 __u64 ln_items_failed;
177 /* How many directories have been traversed. */
178 __u64 ln_dirs_checked;
180 /* How many objects have been double scanned. */
181 __u64 ln_objs_checked_phase2;
183 /* How many objects have been reparied during double scan. */
184 __u64 ln_objs_repaired_phase2;
186 /* How many objects failed to be processed during double scan. */
187 __u64 ln_objs_failed_phase2;
189 /* How many objects with nlink fixed. */
190 __u64 ln_objs_nlink_repaired;
192 /* The latest object has been processed (failed) during double scan. */
193 struct lu_fid ln_fid_latest_scanned_phase2;
195 /* How many FID-in-dirent entries have been repaired. */
196 __u64 ln_dirent_repaired;
198 /* How many linkEA entries have been repaired. */
199 __u64 ln_linkea_repaired;
201 /* How many multiple-linked objects have been checked. */
202 __u64 ln_mul_linked_checked;
204 /* How many multiple-linked objects have been repaired. */
205 __u64 ln_mul_linked_repaired;
207 /* How many undefined inconsistency found in phase2. */
208 __u64 ln_unknown_inconsistency;
210 /* How many unmatched pairs have been repaired. */
211 __u64 ln_unmatched_pairs_repaired;
213 /* How many dangling name entries have been found/repaired. */
214 __u64 ln_dangling_repaired;
216 /* How many multiple referenced name entries have been
218 __u64 ln_mul_ref_repaired;
220 /* How many name entries with bad file type have been repaired. */
221 __u64 ln_bad_type_repaired;
223 /* How many lost name entries have been re-inserted. */
224 __u64 ln_lost_dirent_repaired;
226 /* How many objects under /lost+found have been scanned. */
227 __u64 ln_local_lpf_scanned;
229 /* How many objects under /lost+found have been moved to
230 * namespace visible directory. */
231 __u64 ln_local_lpf_moved;
233 /* How many objects under /lost+found have been skipped. */
234 __u64 ln_local_lpf_skipped;
236 /* How many objects under /lost+found failed to be processed. */
237 __u64 ln_local_lpf_failed;
239 /* How many striped directories (master) have been scanned. */
240 __u64 ln_striped_dirs_scanned;
242 /* How many striped directories (master) have been repaired. */
243 __u64 ln_striped_dirs_repaired;
245 /* How many striped directories (master) failed verification. */
246 __u64 ln_striped_dirs_failed;
248 /* How many striped directories (master) has been disabled. */
249 __u64 ln_striped_dirs_disabled;
251 /* How many striped directory's (master) have been skipped
252 * (for shards verification) because of lost master LMV EA. */
253 __u64 ln_striped_dirs_skipped;
255 /* How many striped directory's shards (slave) have been scanned. */
256 __u64 ln_striped_shards_scanned;
258 /* How many striped directory's shards (slave) have been repaired. */
259 __u64 ln_striped_shards_repaired;
261 /* How many striped directory's shards (slave) failed verification. */
262 __u64 ln_striped_shards_failed;
264 /* How many striped directory's shards (slave) have been skipped
265 * (for name hash verification) because do not know whether the slave
266 * LMV EA is valid or not. */
267 __u64 ln_striped_shards_skipped;
269 /* How many name entries under striped directory with bad name
270 * hash have been repaired. */
271 __u64 ln_name_hash_repaired;
273 /* The size of MDT targets bitmap with nbits. Such bitmap records
274 * the MDTs that contain non-verified MDT-objects. */
275 __u32 ln_bitmap_size;
278 /* For further using. 256-bytes aligned now. */
279 __u64 ln_reserved[15];
282 enum lfsck_layout_inconsistency_type {
285 LLIT_UNMATCHED_PAIR = 2,
286 LLIT_MULTIPLE_REFERENCED = 3,
288 LLIT_INCONSISTENT_OWNER = 5,
290 LLIT_MAX = LLIT_OTHERS
293 struct lfsck_layout {
294 /* Magic number to detect that this struct contains valid data. */
297 /* See 'enum lfsck_status'. */
300 /* See 'enum lfsck_flags'. */
303 /* How many completed LFSCK runs on the device. */
304 __u32 ll_success_count;
306 /* How long the LFSCK phase1 has run in seconds. */
307 __u32 ll_run_time_phase1;
309 /* How long the LFSCK phase2 has run in seconds. */
310 __u32 ll_run_time_phase2;
312 /* Time for the last LFSCK completed in seconds since epoch. */
313 __u64 ll_time_last_complete;
315 /* Time for the latest LFSCK ran in seconds since epoch. */
316 __u64 ll_time_latest_start;
318 /* Time for the last LFSCK checkpoint in seconds since epoch. */
319 __u64 ll_time_last_checkpoint;
321 /* Position for the latest LFSCK started from. */
322 __u64 ll_pos_latest_start;
324 /* Position for the last LFSCK checkpoint. */
325 __u64 ll_pos_last_checkpoint;
327 /* Position for the first object to be fixed or
328 * failed to be checked in the phase1. */
329 __u64 ll_pos_first_inconsistent;
331 /* How many objects have been checked. */
332 __u64 ll_objs_checked_phase1;
334 /* How many objects failed to be processed. */
335 __u64 ll_objs_failed_phase1;
337 /* How many objects have been double scanned. */
338 __u64 ll_objs_checked_phase2;
340 /* How many objects failed to be processed during double scan. */
341 __u64 ll_objs_failed_phase2;
343 /* kinds of inconsistency have been or to be repaired.
344 * ll_objs_repaired[type - 1] is the count for the given @type. */
345 __u64 ll_objs_repaired[LLIT_MAX];
347 /* How many objects have been skipped because of related
348 * MDT(s)/OST(s) do not participate in the LFSCK */
349 __u64 ll_objs_skipped;
351 /* The size of ll_ost_bitmap with nbits. */
352 __u32 ll_bitmap_size;
354 /* For further using. 256-bytes aligned now. */
356 __u64 ll_reserved_2[11];
358 /* The OST targets bitmap to record the OSTs that contain
359 * non-verified OST-objects. */
360 __u8 ll_ost_bitmap[0];
363 struct lfsck_component;
364 struct lfsck_tgt_descs;
365 struct lfsck_tgt_desc;
367 struct lfsck_operations {
368 int (*lfsck_reset)(const struct lu_env *env,
369 struct lfsck_component *com,
372 void (*lfsck_fail)(const struct lu_env *env,
373 struct lfsck_component *com,
376 void (*lfsck_close_dir)(const struct lu_env *env,
377 struct lfsck_component *com);
379 int (*lfsck_open_dir)(const struct lu_env *env,
380 struct lfsck_component *com);
382 int (*lfsck_checkpoint)(const struct lu_env *env,
383 struct lfsck_component *com,
386 int (*lfsck_prep)(const struct lu_env *env,
387 struct lfsck_component *com,
388 struct lfsck_start_param *lsp);
390 int (*lfsck_exec_oit)(const struct lu_env *env,
391 struct lfsck_component *com,
392 struct dt_object *obj);
394 int (*lfsck_exec_dir)(const struct lu_env *env,
395 struct lfsck_component *com,
396 struct lu_dirent *ent,
399 int (*lfsck_post)(const struct lu_env *env,
400 struct lfsck_component *com,
404 int (*lfsck_dump)(const struct lu_env *env,
405 struct lfsck_component *com,
408 int (*lfsck_double_scan)(const struct lu_env *env,
409 struct lfsck_component *com);
411 void (*lfsck_data_release)(const struct lu_env *env,
412 struct lfsck_component *com);
414 void (*lfsck_quit)(const struct lu_env *env,
415 struct lfsck_component *com);
417 int (*lfsck_in_notify)(const struct lu_env *env,
418 struct lfsck_component *com,
419 struct lfsck_request *lr,
422 int (*lfsck_query)(const struct lu_env *env,
423 struct lfsck_component *com);
425 int (*lfsck_join)(const struct lu_env *env,
426 struct lfsck_component *com,
427 struct lfsck_start_param *lsp);
430 #define TGT_PTRS 256 /* number of pointers at 1st level */
431 #define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
433 struct lfsck_tgt_desc {
434 struct list_head ltd_orphan_list;
435 struct dt_device *ltd_tgt;
436 struct dt_device *ltd_key;
437 struct obd_export *ltd_exp;
438 struct list_head ltd_layout_list;
439 struct list_head ltd_layout_phase_list;
440 struct list_head ltd_namespace_list;
441 struct list_head ltd_namespace_phase_list;
444 __u32 ltd_layout_gen;
445 __u32 ltd_namespace_gen;
446 unsigned int ltd_dead:1,
448 ltd_namespace_done:1,
449 ltd_namespace_failed:1;
452 struct lfsck_tgt_desc_idx {
453 struct lfsck_tgt_desc *ldi_tgts[TGT_PTRS_PER_BLOCK];
456 struct lfsck_tgt_descs {
457 /* list of known TGTs */
458 struct lfsck_tgt_desc_idx *ltd_tgts_idx[TGT_PTRS];
460 /* bitmap of TGTs available */
461 cfs_bitmap_t *ltd_tgts_bitmap;
463 /* for lfsck_tgt_desc::ltd_xxx_list */
466 /* for tgts table accessing and changes */
467 struct rw_semaphore ltd_rw_sem;
469 /* Temporary list for orphan targets. */
470 struct list_head ltd_orphan;
472 /* number of registered TGTs */
476 #define LTD_TGT(ltd, index) \
477 ((ltd)->ltd_tgts_idx[(index) / TGT_PTRS_PER_BLOCK]->\
478 ldi_tgts[(index) % TGT_PTRS_PER_BLOCK])
480 #define OST_TGT(lfsck, index) LTD_TGT(&lfsck->li_ost_descs, index)
481 #define MDT_TGT(lfsck, index) LTD_TGT(&lfsck->li_mdt_descs, index)
483 struct lfsck_component {
484 /* into lfsck_instance::li_list_(scan,double_scan,idle} */
485 struct list_head lc_link;
487 /* into lfsck_instance::li_list_dir */
488 struct list_head lc_link_dir;
490 struct rw_semaphore lc_sem;
493 struct lfsck_position lc_pos_start;
494 struct lfsck_instance *lc_lfsck;
495 struct dt_object *lc_obj;
496 struct lfsck_operations *lc_ops;
500 struct lu_fid lc_fid_latest_scanned_phase2;
502 /* The time for last checkpoint, jiffies */
503 cfs_time_t lc_time_last_checkpoint;
505 /* The time for next checkpoint, jiffies */
506 cfs_time_t lc_time_next_checkpoint;
510 /* How many objects have been checked since last checkpoint. */
511 __u32 lc_new_checked;
513 /* How many objects have been scanned since last sleep. */
514 __u32 lc_new_scanned;
519 #define LFSCK_LMV_MAX_STRIPES LMV_MAX_STRIPE_COUNT
520 #define LFSCK_LMV_DEF_STRIPES 4
522 /* When the namespace LFSCK scans a striped directory, it will record all
523 * the known shards' information in the structure "lfsck_slave_lmv_rec",
524 * including the shard's FID, index, slave LMV EA, and so on. Each shard
525 * will take one lfsck_slave_lmv_rec slot. After the 1st cycle scanning
526 * the striped directory, the LFSCK will get all the information about
527 * whether there are some inconsistency, and then it can repair them in
528 * the 2nd cycle scanning. */
529 struct lfsck_slave_lmv_rec {
530 struct lu_fid lslr_fid;
531 __u32 lslr_stripe_count;
532 __u32 lslr_index; /* the index in name or in slave lmv */
533 __u32 lslr_hash_type;
538 struct lmv_mds_md_v1 ll_lmv;
540 int ll_stripes_allocated;
541 int ll_stripes_filled;
543 __u32 ll_max_stripe_count;
544 __u32 ll_max_filled_off;
546 unsigned int ll_lmv_master:1,
553 struct lfsck_slave_lmv_rec *ll_lslr;
556 /* If the namespace LFSCK finds that the master MDT-object of a striped
557 * directory lost its master LMV EA, it will re-generate the master LMV
558 * EA and notify the LFSCK instance on the MDT on which the striped dir
559 * master MDT-object resides to rescan the striped directory. To do that,
560 * the notify handler will insert a "lfsck_lmv_unit" structure into the
561 * lfsck::li_list_lmv. The LFSCK instance will scan such list from time
562 * to time to check whether needs to rescan some stirped directories. */
563 struct lfsck_lmv_unit {
564 struct list_head llu_link;
565 struct lfsck_lmv llu_lmv;
566 struct dt_object *llu_obj;
567 struct lfsck_instance *llu_lfsck;
570 struct lfsck_instance {
571 struct mutex li_mutex;
574 /* Link into the lfsck_instance_list. */
575 struct list_head li_link;
577 /* For the components in (first) scanning via otable-based iteration. */
578 struct list_head li_list_scan;
580 /* For the components in scanning via directory traversal. Because
581 * directory traversal cannot guarantee all the object be scanned,
582 * so the component in the li_list_dir must be in li_list_scan. */
583 struct list_head li_list_dir;
585 /* For the components in double scanning. */
586 struct list_head li_list_double_scan;
588 /* For the components those are not scanning now. */
589 struct list_head li_list_idle;
591 /* For the lfsck_lmv_unit to be handled. */
592 struct list_head li_list_lmv;
595 atomic_t li_double_scan_count;
596 struct ptlrpc_thread li_thread;
598 /* The time for last checkpoint, jiffies */
599 cfs_time_t li_time_last_checkpoint;
601 /* The time for next checkpoint, jiffies */
602 cfs_time_t li_time_next_checkpoint;
604 lfsck_out_notify li_out_notify;
605 void *li_out_notify_data;
606 struct dt_device *li_next;
607 struct dt_device *li_bottom;
608 struct obd_device *li_obd;
609 struct ldlm_namespace *li_namespace;
610 struct local_oid_storage *li_los;
611 struct lu_fid li_local_root_fid; /* backend root "/" */
612 struct lu_fid li_global_root_fid; /* /ROOT */
613 struct dt_object *li_bookmark_obj;
614 struct dt_object *li_lpf_obj;
615 struct lu_client_seq *li_seq;
616 struct lfsck_bookmark li_bookmark_ram;
617 struct lfsck_bookmark li_bookmark_disk;
618 struct lfsck_position li_pos_current;
619 struct lfsck_position li_pos_checkpoint;
621 struct lfsck_lmv *li_lmv;
623 /* Obj for otable-based iteration */
624 struct dt_object *li_obj_oit;
626 /* Obj for directory traversal */
627 struct dt_object *li_obj_dir;
629 /* It for otable-based iteration */
630 struct dt_it *li_di_oit;
632 /* It for directory traversal */
633 struct dt_it *li_di_dir;
635 /* Description of OST */
636 struct lfsck_tgt_descs li_ost_descs;
638 /* Description of MDT */
639 struct lfsck_tgt_descs li_mdt_descs;
641 /* namespace-based directory traversal position. */
644 /* Arguments for low layer otable-based iteration. */
647 /* Arugments for namespace-based directory traversal. */
650 /* Schedule for every N objects. */
653 /* Sleep N jiffies for each schedule. */
656 /* How many objects have been scanned since last sleep. */
657 __u32 li_new_scanned;
659 /* The status when the LFSCK stopped or paused. */
662 /* The flags when the lFSCK stopped or paused. */
665 unsigned int li_oit_over:1, /* oit is finished. */
666 li_drop_dryrun:1, /* Ever dryrun, not now. */
667 li_master:1, /* Master instance or not. */
668 li_current_oit_processed:1,
672 struct lfsck_async_interpret_args {
673 struct lfsck_component *laia_com;
674 struct lfsck_tgt_descs *laia_ltds;
675 struct lfsck_tgt_desc *laia_ltd;
676 struct lfsck_request *laia_lr;
677 atomic_t *laia_count;
679 unsigned int laia_shared:1;
682 struct lfsck_thread_args {
683 struct lu_env lta_env;
684 struct lfsck_instance *lta_lfsck;
685 struct lfsck_component *lta_com;
686 struct lfsck_start_param *lta_lsp;
689 struct lfsck_assistant_req {
690 struct list_head lar_list;
693 struct lfsck_namespace_req {
694 struct lfsck_assistant_req lnr_lar;
695 struct dt_object *lnr_obj;
696 struct lfsck_lmv *lnr_lmv;
697 struct lu_fid lnr_fid;
698 __u64 lnr_oit_cookie;
699 __u64 lnr_dir_cookie;
707 struct lfsck_assistant_operations {
708 int (*la_handler_p1)(const struct lu_env *env,
709 struct lfsck_component *com,
710 struct lfsck_assistant_req *lar);
712 int (*la_handler_p2)(const struct lu_env *env,
713 struct lfsck_component *com);
715 void (*la_fill_pos)(const struct lu_env *env,
716 struct lfsck_component *com,
717 struct lfsck_position *pos);
719 int (*la_double_scan_result)(const struct lu_env *env,
720 struct lfsck_component *com,
723 void (*la_req_fini)(const struct lu_env *env,
724 struct lfsck_assistant_req *lar);
726 void (*la_sync_failures)(const struct lu_env *env,
727 struct lfsck_component *com,
728 struct lfsck_request *lr);
731 struct lfsck_assistant_data {
733 struct list_head lad_req_list;
735 /* list for the ost targets involve LFSCK. */
736 struct list_head lad_ost_list;
738 /* list for the ost targets in phase1 scanning. */
739 struct list_head lad_ost_phase1_list;
741 /* list for the ost targets in phase1 scanning. */
742 struct list_head lad_ost_phase2_list;
744 /* list for the mdt targets involve LFSCK. */
745 struct list_head lad_mdt_list;
747 /* list for the mdt targets in phase1 scanning. */
748 struct list_head lad_mdt_phase1_list;
750 /* list for the mdt targets in phase1 scanning. */
751 struct list_head lad_mdt_phase2_list;
753 const char *lad_name;
754 struct ptlrpc_thread lad_thread;
756 struct lfsck_assistant_operations *lad_ops;
758 cfs_bitmap_t *lad_bitmap;
762 int lad_assistant_status;
764 unsigned int lad_to_post:1,
765 lad_to_double_scan:1,
766 lad_in_double_scan:1,
771 #define LFSCK_TMPBUF_LEN 64
773 struct lfsck_thread_info {
774 struct lu_name lti_name_const;
775 struct lu_name lti_name;
776 struct lu_name lti_name2;
777 struct lu_buf lti_buf;
778 struct lu_buf lti_linkea_buf;
779 struct lu_buf lti_linkea_buf2;
780 struct lu_buf lti_big_buf;
781 struct lu_fid lti_fid;
782 struct lu_fid lti_fid2;
783 struct lu_fid lti_fid3;
784 struct lu_fid lti_fid4;
785 struct lu_fid lti_fid5;
786 struct lu_attr lti_la;
787 struct lu_attr lti_la2;
788 struct lu_attr lti_la3;
789 struct ost_id lti_oi;
791 struct lustre_mdt_attrs lti_lma;
792 /* old LMA for compatibility */
793 char lti_lma_old[LMA_OLD_SIZE];
795 struct dt_object_format lti_dof;
796 /* There will be '\0' at the end of the name. */
797 char lti_key[sizeof(struct lu_dirent) + NAME_MAX + 1];
798 char lti_tmpbuf[LFSCK_TMPBUF_LEN];
799 char lti_tmpbuf2[LFSCK_TMPBUF_LEN];
800 struct lfsck_request lti_lr;
801 struct lfsck_async_interpret_args lti_laia;
802 struct lfsck_async_interpret_args lti_laia2;
803 struct lfsck_start lti_start;
804 struct lfsck_stop lti_stop;
805 ldlm_policy_data_t lti_policy;
806 struct ldlm_enqueue_info lti_einfo;
807 struct ldlm_res_id lti_resid;
809 struct filter_fid_old lti_old_pfid;
810 struct filter_fid lti_new_pfid;
812 struct dt_allocation_hint lti_hint;
813 struct lu_orphan_rec lti_rec;
814 struct lov_user_md lti_lum;
815 struct dt_insert_rec lti_dt_rec;
816 struct lu_object_conf lti_conf;
817 struct lu_seq_range lti_range;
818 struct lmv_mds_md_v1 lti_lmv;
819 struct lmv_mds_md_v1 lti_lmv2;
820 struct lmv_mds_md_v1 lti_lmv3;
821 struct lmv_mds_md_v1 lti_lmv4;
825 int lfsck_fid_alloc(const struct lu_env *env, struct lfsck_instance *lfsck,
826 struct lu_fid *fid, bool locked);
827 int lfsck_ibits_lock(const struct lu_env *env, struct lfsck_instance *lfsck,
828 struct dt_object *obj, struct lustre_handle *lh,
829 __u64 bits, ldlm_mode_t mode);
830 void lfsck_ibits_unlock(struct lustre_handle *lh, ldlm_mode_t mode);
831 int lfsck_find_mdt_idx_by_fid(const struct lu_env *env,
832 struct lfsck_instance *lfsck,
833 const struct lu_fid *fid);
834 int lfsck_create_lpf(const struct lu_env *env, struct lfsck_instance *lfsck);
835 int lfsck_verify_lpf(const struct lu_env *env, struct lfsck_instance *lfsck);
836 struct lfsck_instance *lfsck_instance_find(struct dt_device *key, bool ref,
838 struct lfsck_component *lfsck_component_find(struct lfsck_instance *lfsck,
840 const char *lfsck_status2names(enum lfsck_status status);
841 void lfsck_component_cleanup(const struct lu_env *env,
842 struct lfsck_component *com);
843 void lfsck_instance_cleanup(const struct lu_env *env,
844 struct lfsck_instance *lfsck);
845 int lfsck_bits_dump(struct seq_file *m, int bits, const char *names[],
847 int lfsck_time_dump(struct seq_file *m, __u64 time, const char *prefix);
848 int lfsck_pos_dump(struct seq_file *m, struct lfsck_position *pos,
850 void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck,
851 struct lfsck_position *pos, bool init);
852 bool __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit);
853 void lfsck_control_speed(struct lfsck_instance *lfsck);
854 void lfsck_control_speed_by_self(struct lfsck_component *com);
855 void lfsck_thread_args_fini(struct lfsck_thread_args *lta);
856 struct lfsck_assistant_data *
857 lfsck_assistant_data_init(struct lfsck_assistant_operations *lao,
859 int lfsck_async_interpret_common(const struct lu_env *env,
860 struct ptlrpc_request *req,
862 int lfsck_async_request(const struct lu_env *env, struct obd_export *exp,
863 struct lfsck_request *lr,
864 struct ptlrpc_request_set *set,
865 ptlrpc_interpterer_t interpterer,
866 void *args, int request);
867 int lfsck_start_assistant(const struct lu_env *env, struct lfsck_component *com,
868 struct lfsck_start_param *lsp);
869 int lfsck_checkpoint_generic(const struct lu_env *env,
870 struct lfsck_component *com);
871 void lfsck_post_generic(const struct lu_env *env,
872 struct lfsck_component *com, int *result);
873 int lfsck_double_scan_generic(const struct lu_env *env,
874 struct lfsck_component *com, int status);
875 void lfsck_quit_generic(const struct lu_env *env,
876 struct lfsck_component *com);
879 int lfsck_unpack_ent(struct lu_dirent *ent, __u64 *cookie, __u16 *type);
880 void lfsck_close_dir(const struct lu_env *env,
881 struct lfsck_instance *lfsck, int result);
882 int lfsck_open_dir(const struct lu_env *env,
883 struct lfsck_instance *lfsck, __u64 cookie);
884 int lfsck_master_engine(void *args);
885 int lfsck_assistant_engine(void *args);
887 /* lfsck_bookmark.c */
888 void lfsck_bookmark_cpu_to_le(struct lfsck_bookmark *des,
889 struct lfsck_bookmark *src);
890 int lfsck_bookmark_store(const struct lu_env *env,
891 struct lfsck_instance *lfsck);
892 int lfsck_bookmark_setup(const struct lu_env *env,
893 struct lfsck_instance *lfsck);
894 int lfsck_set_param(const struct lu_env *env, struct lfsck_instance *lfsck,
895 struct lfsck_start *start, bool reset);
897 /* lfsck_namespace.c */
898 int lfsck_namespace_trace_update(const struct lu_env *env,
899 struct lfsck_component *com,
900 const struct lu_fid *fid,
901 const __u8 flags, bool add);
902 int __lfsck_links_read(const struct lu_env *env, struct dt_object *obj,
903 struct linkea_data *ldata);
904 int lfsck_namespace_rebuild_linkea(const struct lu_env *env,
905 struct lfsck_component *com,
906 struct dt_object *obj,
907 struct linkea_data *ldata);
908 int lfsck_namespace_repair_dangling(const struct lu_env *env,
909 struct lfsck_component *com,
910 struct dt_object *child,
911 struct lfsck_namespace_req *lnr);
912 int lfsck_namespace_repair_dirent(const struct lu_env *env,
913 struct lfsck_component *com,
914 struct dt_object *parent,
915 struct dt_object *child,
916 const char *name, const char *name2,
917 __u16 type, bool update, bool dec);
918 int lfsck_verify_linkea(const struct lu_env *env, struct dt_device *dev,
919 struct dt_object *obj, const struct lu_name *cname,
920 const struct lu_fid *pfid);
921 int lfsck_links_get_first(const struct lu_env *env, struct dt_object *obj,
922 char *name, struct lu_fid *pfid);
923 int lfsck_remove_name_entry(const struct lu_env *env,
924 struct lfsck_instance *lfsck,
925 struct dt_object *parent,
926 const char *name, __u32 type);
927 int lfsck_update_name_entry(const struct lu_env *env,
928 struct lfsck_instance *lfsck,
929 struct dt_object *parent, const char *name,
930 const struct lu_fid *pfid, __u32 type);
931 int lfsck_namespace_setup(const struct lu_env *env,
932 struct lfsck_instance *lfsck);
934 /* lfsck_striped_dir.c */
935 void lfsck_lmv_put(const struct lu_env *env, struct lfsck_lmv *llmv);
936 int lfsck_read_stripe_lmv(const struct lu_env *env, struct dt_object *obj,
937 struct lmv_mds_md_v1 *lmv);
938 int lfsck_shard_name_to_index(const struct lu_env *env, const char *name,
939 int namelen, __u16 type,
940 const struct lu_fid *fid);
941 bool lfsck_is_valid_slave_name_entry(const struct lu_env *env,
942 struct lfsck_lmv *llmv,
943 const char *name, int namelen);
944 int lfsck_namespace_check_name(const struct lu_env *env,
945 struct dt_object *parent,
946 struct dt_object *child,
947 const struct lu_name *cname);
948 int lfsck_namespace_update_lmv(const struct lu_env *env,
949 struct lfsck_component *com,
950 struct dt_object *obj,
951 struct lmv_mds_md_v1 *lmv, bool locked);
952 int lfsck_namespace_verify_stripe_slave(const struct lu_env *env,
953 struct lfsck_component *com,
954 struct dt_object *obj,
955 struct lfsck_lmv *llmv);
956 int lfsck_namespace_scan_shard(const struct lu_env *env,
957 struct lfsck_component *com,
958 struct dt_object *child);
959 int lfsck_namespace_notify_lmv_master_local(const struct lu_env *env,
960 struct lfsck_component *com,
961 struct dt_object *obj);
962 int lfsck_namespace_repair_bad_name_hash(const struct lu_env *env,
963 struct lfsck_component *com,
964 struct dt_object *shard,
965 struct lfsck_lmv *llmv,
967 int lfsck_namespace_striped_dir_rescan(const struct lu_env *env,
968 struct lfsck_component *com,
969 struct lfsck_namespace_req *lnr);
972 int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck);
974 extern const char dot[];
975 extern const char dotdot[];
976 extern const char *lfsck_flags_names[];
977 extern const char *lfsck_param_names[];
978 extern struct lu_context_key lfsck_thread_key;
980 static inline bool name_is_dot_or_dotdot(const char *name, int namelen)
982 return name[0] == '.' &&
983 (namelen == 1 || (namelen == 2 && name[1] == '.'));
986 static inline struct dt_device *lfsck_obj2dt_dev(struct dt_object *obj)
988 return container_of0(obj->do_lu.lo_dev, struct dt_device, dd_lu_dev);
991 static inline struct lfsck_thread_info *
992 lfsck_env_info(const struct lu_env *env)
994 struct lfsck_thread_info *info;
996 info = lu_context_key_get(&env->le_ctx, &lfsck_thread_key);
997 LASSERT(info != NULL);
1001 static inline const struct lu_name *
1002 lfsck_name_get_const(const struct lu_env *env, const void *area, ssize_t len)
1004 struct lu_name *lname;
1006 lname = &lfsck_env_info(env)->lti_name_const;
1007 lname->ln_name = area;
1008 lname->ln_namelen = len;
1013 lfsck_buf_init(struct lu_buf *buf, void *area, ssize_t len)
1019 static inline struct lu_buf *
1020 lfsck_buf_get(const struct lu_env *env, void *area, ssize_t len)
1024 buf = &lfsck_env_info(env)->lti_buf;
1030 static inline const struct lu_buf *
1031 lfsck_buf_get_const(const struct lu_env *env, const void *area, ssize_t len)
1035 buf = &lfsck_env_info(env)->lti_buf;
1036 buf->lb_buf = (void *)area;
1041 static inline char *lfsck_lfsck2name(struct lfsck_instance *lfsck)
1043 return lfsck->li_bottom->dd_lu_dev.ld_obd->obd_name;
1046 static inline const struct lu_fid *lfsck_dto2fid(const struct dt_object *obj)
1048 return lu_object_fid(&obj->do_lu);
1051 static inline void lfsck_pos_set_zero(struct lfsck_position *pos)
1053 memset(pos, 0, sizeof(*pos));
1056 static inline int lfsck_pos_is_zero(const struct lfsck_position *pos)
1058 return pos->lp_oit_cookie == 0 && fid_is_zero(&pos->lp_dir_parent);
1061 static inline int lfsck_pos_is_eq(const struct lfsck_position *pos1,
1062 const struct lfsck_position *pos2)
1064 if (pos1->lp_oit_cookie < pos2->lp_oit_cookie)
1067 if (pos1->lp_oit_cookie > pos2->lp_oit_cookie)
1070 if (fid_is_zero(&pos1->lp_dir_parent) &&
1071 !fid_is_zero(&pos2->lp_dir_parent))
1074 if (!fid_is_zero(&pos1->lp_dir_parent) &&
1075 fid_is_zero(&pos2->lp_dir_parent))
1078 if (fid_is_zero(&pos1->lp_dir_parent) &&
1079 fid_is_zero(&pos2->lp_dir_parent))
1082 LASSERT(lu_fid_eq(&pos1->lp_dir_parent, &pos2->lp_dir_parent));
1084 if (pos1->lp_dir_cookie < pos2->lp_dir_cookie)
1087 if (pos1->lp_dir_cookie > pos2->lp_dir_cookie)
1093 static void inline lfsck_position_le_to_cpu(struct lfsck_position *des,
1094 struct lfsck_position *src)
1096 des->lp_oit_cookie = le64_to_cpu(src->lp_oit_cookie);
1097 fid_le_to_cpu(&des->lp_dir_parent, &src->lp_dir_parent);
1098 des->lp_dir_cookie = le64_to_cpu(src->lp_dir_cookie);
1101 static void inline lfsck_position_cpu_to_le(struct lfsck_position *des,
1102 struct lfsck_position *src)
1104 des->lp_oit_cookie = cpu_to_le64(src->lp_oit_cookie);
1105 fid_cpu_to_le(&des->lp_dir_parent, &src->lp_dir_parent);
1106 des->lp_dir_cookie = cpu_to_le64(src->lp_dir_cookie);
1109 static inline umode_t lfsck_object_type(const struct dt_object *obj)
1111 return lu_object_attr(&obj->do_lu);
1114 static inline int lfsck_is_dead_obj(const struct dt_object *obj)
1116 struct lu_object_header *loh = obj->do_lu.lo_header;
1118 return !!test_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
1121 static inline struct dt_object *lfsck_object_get(struct dt_object *obj)
1123 lu_object_get(&obj->do_lu);
1127 static inline void lfsck_object_put(const struct lu_env *env,
1128 struct dt_object *obj)
1130 lu_object_put(env, &obj->do_lu);
1133 static inline u32 lfsck_dev_idx(struct dt_device *dev)
1135 return dev->dd_lu_dev.ld_site->ld_seq_site->ss_node_id;
1138 static inline struct dt_object *
1139 lfsck_object_find_by_dev_nowait(const struct lu_env *env, struct dt_device *dev,
1140 const struct lu_fid *fid)
1142 struct lu_object_conf *conf = &lfsck_env_info(env)->lti_conf;
1143 struct dt_object *obj;
1145 conf->loc_flags = LOC_F_NOWAIT;
1146 obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, conf));
1147 if (unlikely(obj == NULL))
1148 return ERR_PTR(-ENOENT);
1153 static inline struct dt_object *
1154 lfsck_object_find_by_dev(const struct lu_env *env, struct dt_device *dev,
1155 const struct lu_fid *fid)
1157 struct dt_object *obj;
1159 obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, NULL));
1160 if (unlikely(obj == NULL))
1161 return ERR_PTR(-ENOENT);
1166 static inline struct dt_object *lfsck_object_find(const struct lu_env *env,
1167 struct lfsck_instance *lfsck,
1168 const struct lu_fid *fid)
1170 return lfsck_object_find_by_dev(env, lfsck->li_next, fid);
1173 static inline struct dt_object *
1174 lfsck_object_find_bottom(const struct lu_env *env, struct lfsck_instance *lfsck,
1175 const struct lu_fid *fid)
1177 struct dt_device *dev;
1180 idx = lfsck_find_mdt_idx_by_fid(env, lfsck, fid);
1182 return ERR_PTR(idx);
1184 if (idx == lfsck_dev_idx(lfsck->li_bottom)) {
1185 dev = lfsck->li_bottom;
1187 struct lfsck_tgt_desc *ltd;
1189 ltd = LTD_TGT(&lfsck->li_mdt_descs, idx);
1190 if (unlikely(ltd == NULL))
1191 return ERR_PTR(-ENODEV);
1196 return lfsck_object_find_by_dev(env, dev, fid);
1199 static inline struct lfsck_tgt_desc *lfsck_tgt_get(struct lfsck_tgt_descs *ltds,
1202 struct lfsck_tgt_desc *ltd;
1204 ltd = LTD_TGT(ltds, index);
1206 atomic_inc(<d->ltd_ref);
1211 static inline void lfsck_tgt_put(struct lfsck_tgt_desc *ltd)
1213 if (atomic_dec_and_test(<d->ltd_ref))
1217 static inline struct lfsck_component *
1218 lfsck_component_get(struct lfsck_component *com)
1220 atomic_inc(&com->lc_ref);
1225 static inline void lfsck_component_put(const struct lu_env *env,
1226 struct lfsck_component *com)
1228 if (atomic_dec_and_test(&com->lc_ref)) {
1229 if (com->lc_obj != NULL)
1230 lu_object_put_nocache(env, &com->lc_obj->do_lu);
1231 if (com->lc_file_ram != NULL)
1232 OBD_FREE(com->lc_file_ram, com->lc_file_size);
1233 if (com->lc_file_disk != NULL)
1234 OBD_FREE(com->lc_file_disk, com->lc_file_size);
1235 if (com->lc_data != NULL) {
1236 LASSERT(com->lc_ops->lfsck_data_release != NULL);
1238 com->lc_ops->lfsck_data_release(env, com);
1245 static inline struct lfsck_instance *
1246 lfsck_instance_get(struct lfsck_instance *lfsck)
1248 atomic_inc(&lfsck->li_ref);
1253 static inline void lfsck_instance_put(const struct lu_env *env,
1254 struct lfsck_instance *lfsck)
1256 if (atomic_dec_and_test(&lfsck->li_ref))
1257 lfsck_instance_cleanup(env, lfsck);
1260 static inline bool lfsck_phase2_next_ready(struct lfsck_assistant_data *lad)
1262 return list_empty(&lad->lad_mdt_phase1_list) &&
1263 (!list_empty(&lad->lad_ost_phase2_list) ||
1264 list_empty(&lad->lad_ost_phase1_list));
1267 static inline void lfsck_lad_set_bitmap(const struct lu_env *env,
1268 struct lfsck_component *com,
1271 struct lfsck_assistant_data *lad = com->lc_data;
1272 cfs_bitmap_t *bitmap = lad->lad_bitmap;
1274 LASSERT(com->lc_lfsck->li_master);
1275 LASSERT(bitmap != NULL);
1277 if (likely(bitmap->size > index)) {
1278 cfs_bitmap_set(bitmap, index);
1279 lad->lad_incomplete = 1;
1280 } else if (com->lc_type == LFSCK_TYPE_NAMESPACE) {
1281 struct lfsck_namespace *ns = com->lc_file_ram;
1283 ns->ln_flags |= LF_INCOMPLETE;
1287 static inline int lfsck_links_read(const struct lu_env *env,
1288 struct dt_object *obj,
1289 struct linkea_data *ldata)
1292 lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf,
1295 return __lfsck_links_read(env, obj, ldata);
1298 static inline int lfsck_links_read2(const struct lu_env *env,
1299 struct dt_object *obj,
1300 struct linkea_data *ldata)
1303 lu_buf_check_and_alloc(&lfsck_env_info(env)->lti_linkea_buf2,
1306 return __lfsck_links_read(env, obj, ldata);
1309 static inline struct lfsck_lmv *lfsck_lmv_get(struct lfsck_lmv *llmv)
1312 atomic_inc(&llmv->ll_ref);
1317 static inline void lfsck_lmv_header_le_to_cpu(struct lmv_mds_md_v1 *dst,
1318 const struct lmv_mds_md_v1 *src)
1320 dst->lmv_magic = le32_to_cpu(src->lmv_magic);
1321 dst->lmv_stripe_count = le32_to_cpu(src->lmv_stripe_count);
1322 dst->lmv_master_mdt_index = le32_to_cpu(src->lmv_master_mdt_index);
1323 dst->lmv_hash_type = le32_to_cpu(src->lmv_hash_type);
1324 dst->lmv_layout_version = le32_to_cpu(src->lmv_layout_version);
1327 static inline void lfsck_lmv_header_cpu_to_le(struct lmv_mds_md_v1 *dst,
1328 const struct lmv_mds_md_v1 *src)
1330 dst->lmv_magic = cpu_to_le32(src->lmv_magic);
1331 dst->lmv_stripe_count = cpu_to_le32(src->lmv_stripe_count);
1332 dst->lmv_master_mdt_index = cpu_to_le32(src->lmv_master_mdt_index);
1333 dst->lmv_hash_type = cpu_to_le32(src->lmv_hash_type);
1334 dst->lmv_layout_version = cpu_to_le32(src->lmv_layout_version);
1336 #endif /* _LFSCK_INTERNAL_H */