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>
49 #define HALF_SEC (HZ >> 1)
50 #define LFSCK_CHECKPOINT_INTERVAL 60
52 #define LFSCK_NAMEENTRY_DEAD 1 /* The object has been unlinked. */
53 #define LFSCK_NAMEENTRY_REMOVED 2 /* The entry has been removed. */
54 #define LFSCK_NAMEENTRY_RECREATED 3 /* The entry has been recreated. */
57 /* Finish the first cycle scanning. */
58 LF_SCANNED_ONCE = 0x00000001ULL,
60 /* There is some namespace inconsistency. */
61 LF_INCONSISTENT = 0x00000002ULL,
63 /* The device is upgraded from 1.8 format. */
64 LF_UPGRADE = 0x00000004ULL,
66 /* The server ever restarted during the LFSCK, and may miss to process
67 * some objects check/repair. */
68 LF_INCOMPLETE = 0x00000008ULL,
70 /* The LAST_ID (file) crashed. */
71 LF_CRASHED_LASTID = 0x00000010ULL,
74 struct lfsck_position {
75 /* low layer object table-based iteration position. */
78 /* parent FID for directory traversal. */
79 struct lu_fid lp_dir_parent;
81 /* namespace-based directory traversal position. */
85 struct lfsck_bookmark {
86 /* Magic number to detect that this struct contains valid data. */
89 /* For compatible with old versions. */
92 /* See 'enum lfsck_param_flags' */
95 /* How many items can be scanned at most per second. */
98 /* The windows size for async requests pipeline. */
99 __u16 lb_async_windows;
101 /* For 64-bits aligned. */
104 /* The FID for .lustre/lost+found/MDTxxxx */
105 struct lu_fid lb_lpf_fid;
107 /* The FID for the last MDT-object created by the LFSCK repairing. */
108 struct lu_fid lb_last_fid;
110 /* For future using. */
111 __u64 lb_reserved[2];
114 struct lfsck_namespace {
115 /* Magic number to detect that this struct contains valid data. */
118 /* See 'enum lfsck_status'. */
121 /* See 'enum lfsck_flags'. */
124 /* How many completed LFSCK runs on the device. */
125 __u32 ln_success_count;
127 /* How long the LFSCK phase1 has run in seconds. */
128 __u32 ln_run_time_phase1;
130 /* How long the LFSCK phase2 has run in seconds. */
131 __u32 ln_run_time_phase2;
133 /* Time for the last LFSCK completed in seconds since epoch. */
134 __u64 ln_time_last_complete;
136 /* Time for the latest LFSCK ran in seconds since epoch. */
137 __u64 ln_time_latest_start;
139 /* Time for the last LFSCK checkpoint in seconds since epoch. */
140 __u64 ln_time_last_checkpoint;
142 /* Position for the latest LFSCK started from. */
143 struct lfsck_position ln_pos_latest_start;
145 /* Position for the last LFSCK checkpoint. */
146 struct lfsck_position ln_pos_last_checkpoint;
148 /* Position for the first should be updated object. */
149 struct lfsck_position ln_pos_first_inconsistent;
151 /* How many items (including dir) have been checked. */
152 __u64 ln_items_checked;
154 /* How many items have been repaired. */
155 __u64 ln_items_repaired;
157 /* How many items failed to be processed. */
158 __u64 ln_items_failed;
160 /* How many directories have been traversed. */
161 __u64 ln_dirs_checked;
163 /* How many multiple-linked objects have been checked. */
164 __u64 ln_mlinked_checked;
166 /* How many objects have been double scanned. */
167 __u64 ln_objs_checked_phase2;
169 /* How many objects have been reparied during double scan. */
170 __u64 ln_objs_repaired_phase2;
172 /* How many objects failed to be processed during double scan. */
173 __u64 ln_objs_failed_phase2;
175 /* How many objects with nlink fixed. */
176 __u64 ln_objs_nlink_repaired;
178 /* How many objects were lost before, but found back now. */
179 __u64 ln_objs_lost_found;
181 /* The latest object has been processed (failed) during double scan. */
182 struct lu_fid ln_fid_latest_scanned_phase2;
184 /* For further using. 256-bytes aligned now. */
185 __u64 ln_reserved[2];
188 enum lfsck_layout_inconsistency_type {
191 LLIT_UNMATCHED_PAIR = 2,
192 LLIT_MULTIPLE_REFERENCED = 3,
194 LLIT_INCONSISTENT_OWNER = 5,
196 LLIT_MAX = LLIT_OTHERS
199 struct lfsck_layout {
200 /* Magic number to detect that this struct contains valid data. */
203 /* See 'enum lfsck_status'. */
206 /* See 'enum lfsck_flags'. */
209 /* How many completed LFSCK runs on the device. */
210 __u32 ll_success_count;
212 /* How long the LFSCK phase1 has run in seconds. */
213 __u32 ll_run_time_phase1;
215 /* How long the LFSCK phase2 has run in seconds. */
216 __u32 ll_run_time_phase2;
218 /* Time for the last LFSCK completed in seconds since epoch. */
219 __u64 ll_time_last_complete;
221 /* Time for the latest LFSCK ran in seconds since epoch. */
222 __u64 ll_time_latest_start;
224 /* Time for the last LFSCK checkpoint in seconds since epoch. */
225 __u64 ll_time_last_checkpoint;
227 /* Position for the latest LFSCK started from. */
228 __u64 ll_pos_latest_start;
230 /* Position for the last LFSCK checkpoint. */
231 __u64 ll_pos_last_checkpoint;
233 /* Position for the first should be updated object. */
234 __u64 ll_pos_first_inconsistent;
236 /* How many objects have been checked. */
237 __u64 ll_objs_checked_phase1;
239 /* How many objects failed to be processed. */
240 __u64 ll_objs_failed_phase1;
242 /* How many objects have been double scanned. */
243 __u64 ll_objs_checked_phase2;
245 /* How many objects failed to be processed during double scan. */
246 __u64 ll_objs_failed_phase2;
248 /* kinds of inconsistency have been repaired.
249 * ll_objs_repaired[type - 1] is the count for the given @type. */
250 __u64 ll_objs_repaired[LLIT_MAX];
252 /* How many objects have been skipped because of related
253 * MDT(s)/OST(s) do not participate in the LFSCK */
254 __u64 ll_objs_skipped;
256 /* For further using. 256-bytes aligned now. */
257 __u64 ll_reserved[12];
260 struct lfsck_component;
261 struct lfsck_tgt_descs;
262 struct lfsck_tgt_desc;
264 struct lfsck_operations {
265 int (*lfsck_reset)(const struct lu_env *env,
266 struct lfsck_component *com,
269 void (*lfsck_fail)(const struct lu_env *env,
270 struct lfsck_component *com,
273 int (*lfsck_checkpoint)(const struct lu_env *env,
274 struct lfsck_component *com,
277 int (*lfsck_prep)(const struct lu_env *env,
278 struct lfsck_component *com,
279 struct lfsck_start_param *lsp);
281 int (*lfsck_exec_oit)(const struct lu_env *env,
282 struct lfsck_component *com,
283 struct dt_object *obj);
285 int (*lfsck_exec_dir)(const struct lu_env *env,
286 struct lfsck_component *com,
287 struct dt_object *obj,
288 struct lu_dirent *ent);
290 int (*lfsck_post)(const struct lu_env *env,
291 struct lfsck_component *com,
295 int (*lfsck_interpret)(const struct lu_env *env,
296 struct ptlrpc_request *req,
300 int (*lfsck_dump)(const struct lu_env *env,
301 struct lfsck_component *com,
305 int (*lfsck_double_scan)(const struct lu_env *env,
306 struct lfsck_component *com);
308 void (*lfsck_data_release)(const struct lu_env *env,
309 struct lfsck_component *com);
311 void (*lfsck_quit)(const struct lu_env *env,
312 struct lfsck_component *com);
314 int (*lfsck_in_notify)(const struct lu_env *env,
315 struct lfsck_component *com,
316 struct lfsck_request *lr);
318 int (*lfsck_query)(const struct lu_env *env,
319 struct lfsck_component *com);
321 int (*lfsck_stop_notify)(const struct lu_env *env,
322 struct lfsck_component *com,
323 struct lfsck_tgt_descs *ltds,
324 struct lfsck_tgt_desc *ltd,
325 struct ptlrpc_request_set *set);
327 int (*lfsck_join)(const struct lu_env *env,
328 struct lfsck_component *com,
329 struct lfsck_start_param *lsp);
332 #define TGT_PTRS 256 /* number of pointers at 1st level */
333 #define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
335 struct lfsck_tgt_desc {
336 struct list_head ltd_orphan_list;
337 struct dt_device *ltd_tgt;
338 struct dt_device *ltd_key;
339 struct obd_export *ltd_exp;
340 struct list_head ltd_layout_list;
341 struct list_head ltd_layout_phase_list;
344 __u32 ltd_layout_gen;
345 unsigned int ltd_dead:1,
349 struct lfsck_tgt_desc_idx {
350 struct lfsck_tgt_desc *ldi_tgts[TGT_PTRS_PER_BLOCK];
353 struct lfsck_tgt_descs {
354 /* list of known TGTs */
355 struct lfsck_tgt_desc_idx *ltd_tgts_idx[TGT_PTRS];
357 /* bitmap of TGTs available */
358 cfs_bitmap_t *ltd_tgts_bitmap;
360 /* for lfsck_tgt_desc::ltd_xxx_list */
363 /* for tgts table accessing and changes */
364 struct rw_semaphore ltd_rw_sem;
366 /* Temporary list for orphan targets. */
367 struct list_head ltd_orphan;
369 /* number of registered TGTs */
373 #define LTD_TGT(ltd, index) \
374 ((ltd)->ltd_tgts_idx[(index) / TGT_PTRS_PER_BLOCK]->\
375 ldi_tgts[(index) % TGT_PTRS_PER_BLOCK])
377 #define OST_TGT(lfsck, index) LTD_TGT(&lfsck->li_ost_descs, index)
378 #define MDT_TGT(lfsck, index) LTD_TGT(&lfsck->li_mdt_descs, index)
380 struct lfsck_component {
381 /* into lfsck_instance::li_list_(scan,double_scan,idle} */
384 /* into lfsck_instance::li_list_dir */
385 cfs_list_t lc_link_dir;
387 struct rw_semaphore lc_sem;
390 struct lfsck_position lc_pos_start;
391 struct lfsck_instance *lc_lfsck;
392 struct dt_object *lc_obj;
393 struct lfsck_operations *lc_ops;
397 struct lu_fid lc_fid_latest_scanned_phase2;
399 /* The time for last checkpoint, jiffies */
400 cfs_time_t lc_time_last_checkpoint;
402 /* The time for next checkpoint, jiffies */
403 cfs_time_t lc_time_next_checkpoint;
407 /* How many objects have been checked since last checkpoint. */
408 __u32 lc_new_checked;
410 /* How many objects have been scanned since last sleep. */
411 __u32 lc_new_scanned;
413 unsigned int lc_journal:1;
417 struct lfsck_instance {
418 struct mutex li_mutex;
421 /* Link into the lfsck_instance_list. */
424 /* For the components in (first) scanning via otable-based iteration. */
425 cfs_list_t li_list_scan;
427 /* For the components in scanning via directory traversal. Because
428 * directory traversal cannot guarantee all the object be scanned,
429 * so the component in the li_list_dir must be in li_list_scan. */
430 cfs_list_t li_list_dir;
432 /* For the components in double scanning. */
433 cfs_list_t li_list_double_scan;
435 /* For the components those are not scanning now. */
436 cfs_list_t li_list_idle;
439 atomic_t li_double_scan_count;
440 struct ptlrpc_thread li_thread;
442 /* The time for last checkpoint, jiffies */
443 cfs_time_t li_time_last_checkpoint;
445 /* The time for next checkpoint, jiffies */
446 cfs_time_t li_time_next_checkpoint;
448 lfsck_out_notify li_out_notify;
449 void *li_out_notify_data;
450 struct dt_device *li_next;
451 struct dt_device *li_bottom;
452 struct obd_device *li_obd;
453 struct ldlm_namespace *li_namespace;
454 struct local_oid_storage *li_los;
455 struct lu_fid li_local_root_fid; /* backend root "/" */
456 struct lu_fid li_global_root_fid; /* /ROOT */
457 struct dt_object *li_bookmark_obj;
458 struct dt_object *li_lpf_obj;
459 struct lu_client_seq *li_seq;
460 struct lfsck_bookmark li_bookmark_ram;
461 struct lfsck_bookmark li_bookmark_disk;
462 struct lfsck_position li_pos_current;
464 /* Obj for otable-based iteration */
465 struct dt_object *li_obj_oit;
467 /* Obj for directory traversal */
468 struct dt_object *li_obj_dir;
470 /* It for otable-based iteration */
471 struct dt_it *li_di_oit;
473 /* It for directory traversal */
474 struct dt_it *li_di_dir;
476 /* Description of OST */
477 struct lfsck_tgt_descs li_ost_descs;
479 /* Description of MDT */
480 struct lfsck_tgt_descs li_mdt_descs;
482 /* namespace-based directory traversal position. */
485 /* Arguments for low layer otable-based iteration. */
488 /* Arugments for namespace-based directory traversal. */
491 /* Schedule for every N objects. */
494 /* Sleep N jiffies for each schedule. */
497 /* How many objects have been scanned since last sleep. */
498 __u32 li_new_scanned;
500 /* The status when the LFSCK stopped or paused. */
503 /* The flags when the lFSCK stopped or paused. */
506 unsigned int li_oit_over:1, /* oit is finished. */
507 li_drop_dryrun:1, /* Ever dryrun, not now. */
508 li_master:1, /* Master instance or not. */
509 li_current_oit_processed:1,
513 enum lfsck_linkea_flags {
514 /* The linkea entries does not match the object nlinks. */
515 LLF_UNMATCH_NLINKS = 0x01,
517 /* Fail to repair the multiple-linked objects during the double scan. */
518 LLF_REPAIR_FAILED = 0x02,
521 struct lfsck_async_interpret_args {
522 struct lfsck_component *laia_com;
523 struct lfsck_tgt_descs *laia_ltds;
524 struct lfsck_tgt_desc *laia_ltd;
525 struct lfsck_request *laia_lr;
527 unsigned int laia_shared:1;
530 struct lfsck_thread_args {
531 struct lu_env lta_env;
532 struct lfsck_instance *lta_lfsck;
533 struct lfsck_component *lta_com;
534 struct lfsck_start_param *lta_lsp;
537 #define LFSCK_TMPBUF_LEN 64
539 struct lfsck_thread_info {
540 struct lu_name lti_name;
541 struct lu_buf lti_buf;
542 struct lu_buf lti_linkea_buf;
543 struct lu_buf lti_big_buf;
544 struct lu_fid lti_fid;
545 struct lu_fid lti_fid2;
546 struct lu_fid lti_fid3;
547 struct lu_attr lti_la;
548 struct lu_attr lti_la2;
549 struct lu_attr lti_la3;
550 struct ost_id lti_oi;
552 struct lustre_mdt_attrs lti_lma;
553 /* old LMA for compatibility */
554 char lti_lma_old[LMA_OLD_SIZE];
556 struct dt_object_format lti_dof;
557 /* lti_ent and lti_key must be conjoint,
558 * then lti_ent::lde_name will be lti_key. */
559 struct lu_dirent lti_ent;
560 char lti_key[NAME_MAX + 16];
561 char lti_tmpbuf[LFSCK_TMPBUF_LEN];
562 struct lfsck_request lti_lr;
563 struct lfsck_async_interpret_args lti_laia;
564 struct lfsck_start lti_start;
565 struct lfsck_stop lti_stop;
566 ldlm_policy_data_t lti_policy;
567 struct ldlm_res_id lti_resid;
569 struct filter_fid_old lti_old_pfid;
570 struct filter_fid lti_new_pfid;
572 struct dt_allocation_hint lti_hint;
573 struct lu_orphan_rec lti_rec;
577 int lfsck_fid_alloc(const struct lu_env *env, struct lfsck_instance *lfsck,
578 struct lu_fid *fid, bool locked);
579 int lfsck_create_lpf(const struct lu_env *env, struct lfsck_instance *lfsck);
580 struct lfsck_instance *lfsck_instance_find(struct dt_device *key, bool ref,
582 struct lfsck_component *lfsck_component_find(struct lfsck_instance *lfsck,
584 const char *lfsck_status2names(enum lfsck_status status);
585 void lfsck_component_cleanup(const struct lu_env *env,
586 struct lfsck_component *com);
587 void lfsck_instance_cleanup(const struct lu_env *env,
588 struct lfsck_instance *lfsck);
589 int lfsck_bits_dump(char **buf, int *len, int bits, const char *names[],
591 int lfsck_time_dump(char **buf, int *len, __u64 time, const char *prefix);
592 int lfsck_pos_dump(char **buf, int *len, struct lfsck_position *pos,
594 void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck,
595 struct lfsck_position *pos, bool init);
596 void lfsck_control_speed(struct lfsck_instance *lfsck);
597 void lfsck_control_speed_by_self(struct lfsck_component *com);
598 int lfsck_reset(const struct lu_env *env, struct lfsck_instance *lfsck,
600 struct lfsck_thread_args *lfsck_thread_args_init(struct lfsck_instance *lfsck,
601 struct lfsck_component *com,
602 struct lfsck_start_param *lsp);
603 void lfsck_thread_args_fini(struct lfsck_thread_args *lta);
604 void lfsck_fail(const struct lu_env *env, struct lfsck_instance *lfsck,
606 int lfsck_checkpoint(const struct lu_env *env, struct lfsck_instance *lfsck);
607 int lfsck_prep(const struct lu_env *env, struct lfsck_instance *lfsck,
608 struct lfsck_start_param *lsp);
609 int lfsck_exec_oit(const struct lu_env *env, struct lfsck_instance *lfsck,
610 struct dt_object *obj);
611 int lfsck_exec_dir(const struct lu_env *env, struct lfsck_instance *lfsck,
612 struct dt_object *obj, struct lu_dirent *ent);
613 int lfsck_post(const struct lu_env *env, struct lfsck_instance *lfsck,
615 int lfsck_double_scan(const struct lu_env *env, struct lfsck_instance *lfsck);
616 void lfsck_quit(const struct lu_env *env, struct lfsck_instance *lfsck);
617 int lfsck_async_request(const struct lu_env *env, struct obd_export *exp,
618 struct lfsck_request *lr,
619 struct ptlrpc_request_set *set,
620 ptlrpc_interpterer_t interpterer,
621 void *args, int request);
624 int lfsck_master_engine(void *args);
626 /* lfsck_bookmark.c */
627 void lfsck_bookmark_cpu_to_le(struct lfsck_bookmark *des,
628 struct lfsck_bookmark *src);
629 int lfsck_bookmark_store(const struct lu_env *env,
630 struct lfsck_instance *lfsck);
631 int lfsck_bookmark_setup(const struct lu_env *env,
632 struct lfsck_instance *lfsck);
634 /* lfsck_namespace.c */
635 int lfsck_namespace_setup(const struct lu_env *env,
636 struct lfsck_instance *lfsck);
639 int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck);
641 extern const char *lfsck_flags_names[];
642 extern const char *lfsck_param_names[];
643 extern struct lu_context_key lfsck_thread_key;
645 static inline struct dt_device *lfsck_obj2dt_dev(struct dt_object *obj)
647 return container_of0(obj->do_lu.lo_dev, struct dt_device, dd_lu_dev);
650 static inline struct lfsck_thread_info *
651 lfsck_env_info(const struct lu_env *env)
653 struct lfsck_thread_info *info;
655 info = lu_context_key_get(&env->le_ctx, &lfsck_thread_key);
656 LASSERT(info != NULL);
660 static inline const struct lu_name *
661 lfsck_name_get_const(const struct lu_env *env, const void *area, ssize_t len)
663 struct lu_name *lname;
665 lname = &lfsck_env_info(env)->lti_name;
666 lname->ln_name = area;
667 lname->ln_namelen = len;
671 static inline struct lu_buf *
672 lfsck_buf_get(const struct lu_env *env, void *area, ssize_t len)
676 buf = &lfsck_env_info(env)->lti_buf;
682 static inline const struct lu_buf *
683 lfsck_buf_get_const(const struct lu_env *env, const void *area, ssize_t len)
687 buf = &lfsck_env_info(env)->lti_buf;
688 buf->lb_buf = (void *)area;
693 static inline char *lfsck_lfsck2name(struct lfsck_instance *lfsck)
695 return lfsck->li_bottom->dd_lu_dev.ld_obd->obd_name;
698 static inline const struct lu_fid *lfsck_dto2fid(const struct dt_object *obj)
700 return lu_object_fid(&obj->do_lu);
703 static inline void lfsck_pos_set_zero(struct lfsck_position *pos)
705 memset(pos, 0, sizeof(*pos));
708 static inline int lfsck_pos_is_zero(const struct lfsck_position *pos)
710 return pos->lp_oit_cookie == 0 && fid_is_zero(&pos->lp_dir_parent);
713 static inline int lfsck_pos_is_eq(const struct lfsck_position *pos1,
714 const struct lfsck_position *pos2)
716 if (pos1->lp_oit_cookie < pos2->lp_oit_cookie)
719 if (pos1->lp_oit_cookie > pos2->lp_oit_cookie)
722 if (fid_is_zero(&pos1->lp_dir_parent) &&
723 !fid_is_zero(&pos2->lp_dir_parent))
726 if (!fid_is_zero(&pos1->lp_dir_parent) &&
727 fid_is_zero(&pos2->lp_dir_parent))
730 if (fid_is_zero(&pos1->lp_dir_parent) &&
731 fid_is_zero(&pos2->lp_dir_parent))
734 LASSERT(lu_fid_eq(&pos1->lp_dir_parent, &pos2->lp_dir_parent));
736 if (pos1->lp_dir_cookie < pos2->lp_dir_cookie)
739 if (pos1->lp_dir_cookie > pos2->lp_dir_cookie)
745 static void inline lfsck_position_le_to_cpu(struct lfsck_position *des,
746 struct lfsck_position *src)
748 des->lp_oit_cookie = le64_to_cpu(src->lp_oit_cookie);
749 fid_le_to_cpu(&des->lp_dir_parent, &src->lp_dir_parent);
750 des->lp_dir_cookie = le64_to_cpu(src->lp_dir_cookie);
753 static void inline lfsck_position_cpu_to_le(struct lfsck_position *des,
754 struct lfsck_position *src)
756 des->lp_oit_cookie = cpu_to_le64(src->lp_oit_cookie);
757 fid_cpu_to_le(&des->lp_dir_parent, &src->lp_dir_parent);
758 des->lp_dir_cookie = cpu_to_le64(src->lp_dir_cookie);
761 static inline umode_t lfsck_object_type(const struct dt_object *obj)
763 return lu_object_attr(&obj->do_lu);
766 static inline int lfsck_is_dead_obj(const struct dt_object *obj)
768 struct lu_object_header *loh = obj->do_lu.lo_header;
770 return !!test_bit(LU_OBJECT_HEARD_BANSHEE, &loh->loh_flags);
773 static inline struct dt_object *lfsck_object_find(const struct lu_env *env,
774 struct lfsck_instance *lfsck,
775 const struct lu_fid *fid)
777 return lu2dt(lu_object_find_slice(env, dt2lu_dev(lfsck->li_next),
781 static inline struct dt_object *lfsck_object_get(struct dt_object *obj)
783 lu_object_get(&obj->do_lu);
787 static inline void lfsck_object_put(const struct lu_env *env,
788 struct dt_object *obj)
790 lu_object_put(env, &obj->do_lu);
793 static inline struct dt_object *
794 lfsck_object_find_by_dev(const struct lu_env *env, struct dt_device *dev,
795 const struct lu_fid *fid)
797 struct dt_object *obj;
799 obj = lu2dt(lu_object_find_slice(env, dt2lu_dev(dev), fid, NULL));
800 if (unlikely(obj == NULL))
801 return ERR_PTR(-ENOENT);
806 static inline struct lfsck_tgt_desc *lfsck_tgt_get(struct lfsck_tgt_descs *ltds,
809 struct lfsck_tgt_desc *ltd;
811 ltd = LTD_TGT(ltds, index);
813 atomic_inc(<d->ltd_ref);
818 static inline void lfsck_tgt_put(struct lfsck_tgt_desc *ltd)
820 if (atomic_dec_and_test(<d->ltd_ref))
824 static inline struct lfsck_component *
825 lfsck_component_get(struct lfsck_component *com)
827 atomic_inc(&com->lc_ref);
832 static inline void lfsck_component_put(const struct lu_env *env,
833 struct lfsck_component *com)
835 if (atomic_dec_and_test(&com->lc_ref)) {
836 if (com->lc_obj != NULL)
837 lu_object_put_nocache(env, &com->lc_obj->do_lu);
838 if (com->lc_file_ram != NULL)
839 OBD_FREE(com->lc_file_ram, com->lc_file_size);
840 if (com->lc_file_disk != NULL)
841 OBD_FREE(com->lc_file_disk, com->lc_file_size);
842 if (com->lc_data != NULL) {
843 LASSERT(com->lc_ops->lfsck_data_release != NULL);
845 com->lc_ops->lfsck_data_release(env, com);
852 static inline struct lfsck_instance *
853 lfsck_instance_get(struct lfsck_instance *lfsck)
855 atomic_inc(&lfsck->li_ref);
860 static inline void lfsck_instance_put(const struct lu_env *env,
861 struct lfsck_instance *lfsck)
863 if (atomic_dec_and_test(&lfsck->li_ref))
864 lfsck_instance_cleanup(env, lfsck);
867 static inline mdsno_t lfsck_dev_idx(struct dt_device *dev)
869 return dev->dd_lu_dev.ld_site->ld_seq_site->ss_node_id;
872 #endif /* _LFSCK_INTERNAL_H */