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) 2014, Intel Corporation.
26 * lustre/lfsck/lfsck_layout.c
28 * Author: Fan, Yong <fan.yong@intel.com>
32 # define EXPORT_SYMTAB
34 #define DEBUG_SUBSYSTEM S_LFSCK
36 #include <linux/bitops.h>
37 #include <linux/rbtree.h>
39 #include <lustre/lustre_idl.h>
40 #include <lu_object.h>
41 #include <dt_object.h>
42 #include <lustre_fid.h>
43 #include <lustre_lib.h>
44 #include <lustre_net.h>
45 #include <lustre/lustre_user.h>
46 #include <md_object.h>
47 #include <obd_class.h>
49 #include "lfsck_internal.h"
51 #define LFSCK_LAYOUT_MAGIC_V1 0xB173AE14
52 #define LFSCK_LAYOUT_MAGIC_V2 0xB1734D76
54 #define LFSCK_LAYOUT_MAGIC LFSCK_LAYOUT_MAGIC_V2
56 struct lfsck_layout_seq {
57 struct list_head lls_list;
60 __u64 lls_lastid_known;
61 struct dt_object *lls_lastid_obj;
62 unsigned int lls_dirty:1;
65 struct lfsck_layout_slave_target {
66 /* link into lfsck_layout_slave_data::llsd_master_list. */
67 struct list_head llst_list;
68 /* The position for next record in the rbtree for iteration. */
69 struct lu_fid llst_fid;
70 /* Dummy hash for iteration against the rbtree. */
77 struct lfsck_layout_slave_data {
78 /* list for lfsck_layout_seq */
79 struct list_head llsd_seq_list;
81 /* list for the masters involve layout verification. */
82 struct list_head llsd_master_list;
85 struct dt_object *llsd_rb_obj;
86 struct rb_root llsd_rb_root;
87 rwlock_t llsd_rb_lock;
88 unsigned int llsd_rbtree_valid:1;
91 struct lfsck_layout_object {
92 struct lu_attr llo_attr;
97 struct lfsck_layout_req {
98 struct lfsck_assistant_req llr_lar;
99 struct lfsck_layout_object *llr_parent;
100 struct dt_object *llr_child;
102 __u32 llr_lov_idx; /* offset in LOV EA */
105 struct lfsck_layout_slave_async_args {
106 struct obd_export *llsaa_exp;
107 struct lfsck_component *llsaa_com;
108 struct lfsck_layout_slave_target *llsaa_llst;
111 static struct lfsck_layout_object *
112 lfsck_layout_object_init(const struct lu_env *env, struct dt_object *obj,
115 struct lfsck_layout_object *llo;
120 return ERR_PTR(-ENOMEM);
122 rc = dt_attr_get(env, obj, &llo->llo_attr, BYPASS_CAPA);
129 llo->llo_cookie = cookie;
130 atomic_set(&llo->llo_ref, 1);
136 lfsck_layout_llst_put(struct lfsck_layout_slave_target *llst)
138 if (atomic_dec_and_test(&llst->llst_ref)) {
139 LASSERT(list_empty(&llst->llst_list));
146 lfsck_layout_llst_add(struct lfsck_layout_slave_data *llsd, __u32 index)
148 struct lfsck_layout_slave_target *llst;
149 struct lfsck_layout_slave_target *tmp;
156 INIT_LIST_HEAD(&llst->llst_list);
158 llst->llst_index = index;
159 atomic_set(&llst->llst_ref, 1);
161 spin_lock(&llsd->llsd_lock);
162 list_for_each_entry(tmp, &llsd->llsd_master_list, llst_list) {
163 if (tmp->llst_index == index) {
169 list_add_tail(&llst->llst_list, &llsd->llsd_master_list);
170 spin_unlock(&llsd->llsd_lock);
179 lfsck_layout_llst_del(struct lfsck_layout_slave_data *llsd,
180 struct lfsck_layout_slave_target *llst)
184 spin_lock(&llsd->llsd_lock);
185 if (!list_empty(&llst->llst_list)) {
186 list_del_init(&llst->llst_list);
189 spin_unlock(&llsd->llsd_lock);
192 lfsck_layout_llst_put(llst);
195 static inline struct lfsck_layout_slave_target *
196 lfsck_layout_llst_find_and_del(struct lfsck_layout_slave_data *llsd,
197 __u32 index, bool unlink)
199 struct lfsck_layout_slave_target *llst;
201 spin_lock(&llsd->llsd_lock);
202 list_for_each_entry(llst, &llsd->llsd_master_list, llst_list) {
203 if (llst->llst_index == index) {
205 list_del_init(&llst->llst_list);
207 atomic_inc(&llst->llst_ref);
208 spin_unlock(&llsd->llsd_lock);
213 spin_unlock(&llsd->llsd_lock);
218 static inline void lfsck_layout_object_put(const struct lu_env *env,
219 struct lfsck_layout_object *llo)
221 if (atomic_dec_and_test(&llo->llo_ref))
225 static struct lfsck_layout_req *
226 lfsck_layout_assistant_req_init(struct lfsck_layout_object *parent,
227 const struct lu_fid *pfid,
228 struct dt_object *child, __u32 ost_idx,
231 struct lfsck_layout_req *llr;
235 return ERR_PTR(-ENOMEM);
237 INIT_LIST_HEAD(&llr->llr_lar.lar_list);
238 llr->llr_lar.lar_fid = *pfid;
240 atomic_inc(&parent->llo_ref);
241 llr->llr_parent = parent;
242 llr->llr_child = child;
243 llr->llr_ost_idx = ost_idx;
244 llr->llr_lov_idx = lov_idx;
249 static void lfsck_layout_assistant_req_fini(const struct lu_env *env,
250 struct lfsck_assistant_req *lar)
252 struct lfsck_layout_req *llr =
253 container_of0(lar, struct lfsck_layout_req, llr_lar);
255 lfsck_object_put(env, llr->llr_child);
256 lfsck_layout_object_put(env, llr->llr_parent);
261 lfsck_layout_assistant_sync_failures_interpret(const struct lu_env *env,
262 struct ptlrpc_request *req,
266 struct lfsck_async_interpret_args *laia = args;
267 struct lfsck_tgt_desc *ltd = laia->laia_ltd;
269 ltd->ltd_synced_failures = 1;
270 atomic_dec(laia->laia_count);
277 * Notify remote LFSCK instances about former failures.
279 * The local LFSCK instance has recorded which OSTs have ever failed to respond
280 * some LFSCK verification requests (maybe because of network issues or the OST
281 * itself trouble). During the respond gap, the OST may missed some OST-objects
282 * verification, then the OST cannot know whether related OST-objects have been
283 * referenced by related MDT-objects or not, then in the second-stage scanning,
284 * these OST-objects will be regarded as orphan, if the OST-object contains bad
285 * parent FID for back reference, then it will misguide the LFSCK to make wrong
286 * fixing for the fake orphan.
288 * To avoid above trouble, when layout LFSCK finishes the first-stage scanning,
289 * it will scan the bitmap for the ever failed OSTs, and notify them that they
290 * have ever missed some OST-object verification and should skip the handling
291 * for orphan OST-objects on all MDTs that are in the layout LFSCK.
293 * \param[in] env pointer to the thread context
294 * \param[in] com pointer to the lfsck component
295 * \param[in] lr pointer to the lfsck request
297 static void lfsck_layout_assistant_sync_failures(const struct lu_env *env,
298 struct lfsck_component *com,
299 struct lfsck_request *lr)
301 struct lfsck_async_interpret_args *laia =
302 &lfsck_env_info(env)->lti_laia2;
303 struct lfsck_assistant_data *lad = com->lc_data;
304 struct lfsck_layout *lo = com->lc_file_ram;
305 struct lfsck_instance *lfsck = com->lc_lfsck;
306 struct lfsck_tgt_descs *ltds = &lfsck->li_ost_descs;
307 struct lfsck_tgt_desc *ltd;
308 struct ptlrpc_request_set *set;
314 if (!lad->lad_incomplete || lo->ll_flags & LF_INCOMPLETE)
317 /* If the MDT has ever failed to verfiy some OST-objects,
318 * then sync failures with them firstly. */
319 lr->lr_flags2 = lo->ll_flags | LF_INCOMPLETE;
321 atomic_set(&count, 0);
322 memset(laia, 0, sizeof(*laia));
323 laia->laia_count = &count;
324 set = ptlrpc_prep_set();
326 GOTO(out, rc = -ENOMEM);
328 down_read(<ds->ltd_rw_sem);
329 cfs_foreach_bit(lad->lad_bitmap, idx) {
330 ltd = LTD_TGT(ltds, idx);
331 LASSERT(ltd != NULL);
333 laia->laia_ltd = ltd;
334 rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
335 lfsck_layout_assistant_sync_failures_interpret,
338 CDEBUG(D_LFSCK, "%s: LFSCK assistant fail to "
339 "notify target %x for %s phase1 done: "
340 "rc = %d\n", lfsck_lfsck2name(com->lc_lfsck),
341 ltd->ltd_index, lad->lad_name, rc);
348 up_read(<ds->ltd_rw_sem);
350 if (rc == 0 && atomic_read(&count) > 0)
351 rc = ptlrpc_set_wait(set);
353 ptlrpc_set_destroy(set);
355 if (rc == 0 && atomic_read(&count) > 0)
362 /* If failed to sync failures with the OSTs, then have to
363 * mark the whole LFSCK as LF_INCOMPLETE to skip the whole
364 * subsequent orphan OST-object handling. */
365 lo->ll_flags |= LF_INCOMPLETE;
367 lr->lr_flags2 = lo->ll_flags;
370 static int lfsck_layout_get_lovea(const struct lu_env *env,
371 struct dt_object *obj, struct lu_buf *buf)
376 rc = dt_xattr_get(env, obj, buf, XATTR_NAME_LOV, BYPASS_CAPA);
378 rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_LOV,
383 lu_buf_realloc(buf, rc);
384 if (buf->lb_buf == NULL)
396 if (unlikely(buf->lb_buf == NULL)) {
397 lu_buf_alloc(buf, rc);
398 if (buf->lb_buf == NULL)
407 static int lfsck_layout_verify_header(struct lov_mds_md_v1 *lmm)
412 magic = le32_to_cpu(lmm->lmm_magic);
413 /* If magic crashed, keep it there. Sometime later, during OST-object
414 * orphan handling, if some OST-object(s) back-point to it, it can be
415 * verified and repaired. */
416 if (magic != LOV_MAGIC_V1 && magic != LOV_MAGIC_V3) {
420 lmm_oi_le_to_cpu(&oi, &lmm->lmm_oi);
421 if ((magic & LOV_MAGIC_MASK) == LOV_MAGIC_MAGIC)
426 CDEBUG(D_LFSCK, "%s LOV EA magic %u on "DOSTID"\n",
427 rc == -EINVAL ? "Unknown" : "Unsupported",
433 pattern = le32_to_cpu(lmm->lmm_pattern);
434 /* XXX: currently, we only support LOV_PATTERN_RAID0. */
435 if (lov_pattern(pattern) != LOV_PATTERN_RAID0) {
438 lmm_oi_le_to_cpu(&oi, &lmm->lmm_oi);
439 CDEBUG(D_LFSCK, "Unsupported LOV EA pattern %u on "DOSTID"\n",
440 pattern, POSTID(&oi));
448 #define LFSCK_RBTREE_BITMAP_SIZE PAGE_CACHE_SIZE
449 #define LFSCK_RBTREE_BITMAP_WIDTH (LFSCK_RBTREE_BITMAP_SIZE << 3)
450 #define LFSCK_RBTREE_BITMAP_MASK (LFSCK_RBTREE_BITMAP_WIDTH - 1)
452 struct lfsck_rbtree_node {
453 struct rb_node lrn_node;
456 atomic_t lrn_known_count;
457 atomic_t lrn_accessed_count;
458 void *lrn_known_bitmap;
459 void *lrn_accessed_bitmap;
462 static inline int lfsck_rbtree_cmp(struct lfsck_rbtree_node *lrn,
463 __u64 seq, __u32 oid)
465 if (seq < lrn->lrn_seq)
468 if (seq > lrn->lrn_seq)
471 if (oid < lrn->lrn_first_oid)
474 if (oid - lrn->lrn_first_oid >= LFSCK_RBTREE_BITMAP_WIDTH)
480 /* The caller should hold llsd->llsd_rb_lock. */
481 static struct lfsck_rbtree_node *
482 lfsck_rbtree_search(struct lfsck_layout_slave_data *llsd,
483 const struct lu_fid *fid, bool *exact)
485 struct rb_node *node = llsd->llsd_rb_root.rb_node;
486 struct rb_node *prev = NULL;
487 struct lfsck_rbtree_node *lrn = NULL;
493 while (node != NULL) {
495 lrn = rb_entry(node, struct lfsck_rbtree_node, lrn_node);
496 rc = lfsck_rbtree_cmp(lrn, fid_seq(fid), fid_oid(fid));
498 node = node->rb_left;
500 node = node->rb_right;
508 /* If there is no exactly matched one, then to the next valid one. */
511 /* The rbtree is empty. */
518 node = rb_next(prev);
520 /* The end of the rbtree. */
524 lrn = rb_entry(node, struct lfsck_rbtree_node, lrn_node);
529 static struct lfsck_rbtree_node *lfsck_rbtree_new(const struct lu_env *env,
530 const struct lu_fid *fid)
532 struct lfsck_rbtree_node *lrn;
536 return ERR_PTR(-ENOMEM);
538 OBD_ALLOC(lrn->lrn_known_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
539 if (lrn->lrn_known_bitmap == NULL) {
542 return ERR_PTR(-ENOMEM);
545 OBD_ALLOC(lrn->lrn_accessed_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
546 if (lrn->lrn_accessed_bitmap == NULL) {
547 OBD_FREE(lrn->lrn_known_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
550 return ERR_PTR(-ENOMEM);
553 RB_CLEAR_NODE(&lrn->lrn_node);
554 lrn->lrn_seq = fid_seq(fid);
555 lrn->lrn_first_oid = fid_oid(fid) & ~LFSCK_RBTREE_BITMAP_MASK;
556 atomic_set(&lrn->lrn_known_count, 0);
557 atomic_set(&lrn->lrn_accessed_count, 0);
562 static void lfsck_rbtree_free(struct lfsck_rbtree_node *lrn)
564 OBD_FREE(lrn->lrn_accessed_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
565 OBD_FREE(lrn->lrn_known_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
569 /* The caller should hold lock. */
570 static struct lfsck_rbtree_node *
571 lfsck_rbtree_insert(struct lfsck_layout_slave_data *llsd,
572 struct lfsck_rbtree_node *lrn)
574 struct rb_node **pos = &llsd->llsd_rb_root.rb_node;
575 struct rb_node *parent = NULL;
576 struct lfsck_rbtree_node *tmp;
579 while (*pos != NULL) {
581 tmp = rb_entry(parent, struct lfsck_rbtree_node, lrn_node);
582 rc = lfsck_rbtree_cmp(tmp, lrn->lrn_seq, lrn->lrn_first_oid);
584 pos = &(*pos)->rb_left;
586 pos = &(*pos)->rb_right;
591 rb_link_node(&lrn->lrn_node, parent, pos);
592 rb_insert_color(&lrn->lrn_node, &llsd->llsd_rb_root);
597 extern const struct dt_index_operations lfsck_orphan_index_ops;
599 static int lfsck_rbtree_setup(const struct lu_env *env,
600 struct lfsck_component *com)
602 struct lu_fid *fid = &lfsck_env_info(env)->lti_fid;
603 struct lfsck_instance *lfsck = com->lc_lfsck;
604 struct dt_device *dev = lfsck->li_bottom;
605 struct lfsck_layout_slave_data *llsd = com->lc_data;
606 struct dt_object *obj;
608 fid->f_seq = FID_SEQ_LAYOUT_RBTREE;
609 fid->f_oid = lfsck_dev_idx(lfsck);
611 obj = dt_locate(env, dev, fid);
613 RETURN(PTR_ERR(obj));
615 /* Generate an in-RAM object to stand for the layout rbtree.
616 * Scanning the layout rbtree will be via the iteration over
617 * the object. In the future, the rbtree may be written onto
618 * disk with the object.
620 * Mark the object to be as exist. */
621 obj->do_lu.lo_header->loh_attr |= LOHA_EXISTS;
622 obj->do_index_ops = &lfsck_orphan_index_ops;
623 llsd->llsd_rb_obj = obj;
624 llsd->llsd_rbtree_valid = 1;
625 dev->dd_record_fid_accessed = 1;
627 CDEBUG(D_LFSCK, "%s: layout LFSCK init OST-objects accessing bitmap\n",
628 lfsck_lfsck2name(lfsck));
633 static void lfsck_rbtree_cleanup(const struct lu_env *env,
634 struct lfsck_component *com)
636 struct lfsck_instance *lfsck = com->lc_lfsck;
637 struct lfsck_layout_slave_data *llsd = com->lc_data;
638 struct rb_node *node = rb_first(&llsd->llsd_rb_root);
639 struct rb_node *next;
640 struct lfsck_rbtree_node *lrn;
642 lfsck->li_bottom->dd_record_fid_accessed = 0;
643 /* Invalid the rbtree, then no others will use it. */
644 write_lock(&llsd->llsd_rb_lock);
645 llsd->llsd_rbtree_valid = 0;
646 write_unlock(&llsd->llsd_rb_lock);
648 while (node != NULL) {
649 next = rb_next(node);
650 lrn = rb_entry(node, struct lfsck_rbtree_node, lrn_node);
651 rb_erase(node, &llsd->llsd_rb_root);
652 lfsck_rbtree_free(lrn);
656 if (llsd->llsd_rb_obj != NULL) {
657 lfsck_object_put(env, llsd->llsd_rb_obj);
658 llsd->llsd_rb_obj = NULL;
661 CDEBUG(D_LFSCK, "%s: layout LFSCK fini OST-objects accessing bitmap\n",
662 lfsck_lfsck2name(lfsck));
665 static void lfsck_rbtree_update_bitmap(const struct lu_env *env,
666 struct lfsck_component *com,
667 const struct lu_fid *fid,
670 struct lfsck_layout_slave_data *llsd = com->lc_data;
671 struct lfsck_rbtree_node *lrn;
677 if (unlikely(!fid_is_sane(fid) || fid_is_last_id(fid)))
680 if (!fid_is_idif(fid) && !fid_is_norm(fid))
683 read_lock(&llsd->llsd_rb_lock);
684 if (!llsd->llsd_rbtree_valid)
685 GOTO(unlock, rc = 0);
687 lrn = lfsck_rbtree_search(llsd, fid, NULL);
689 struct lfsck_rbtree_node *tmp;
693 read_unlock(&llsd->llsd_rb_lock);
694 tmp = lfsck_rbtree_new(env, fid);
696 GOTO(out, rc = PTR_ERR(tmp));
699 write_lock(&llsd->llsd_rb_lock);
700 if (!llsd->llsd_rbtree_valid) {
701 lfsck_rbtree_free(tmp);
702 GOTO(unlock, rc = 0);
705 lrn = lfsck_rbtree_insert(llsd, tmp);
707 lfsck_rbtree_free(tmp);
710 idx = fid_oid(fid) & LFSCK_RBTREE_BITMAP_MASK;
711 /* Any accessed object must be a known object. */
712 if (!test_and_set_bit(idx, lrn->lrn_known_bitmap))
713 atomic_inc(&lrn->lrn_known_count);
714 if (accessed && !test_and_set_bit(idx, lrn->lrn_accessed_bitmap))
715 atomic_inc(&lrn->lrn_accessed_count);
717 GOTO(unlock, rc = 0);
721 write_unlock(&llsd->llsd_rb_lock);
723 read_unlock(&llsd->llsd_rb_lock);
725 if (rc != 0 && accessed) {
726 struct lfsck_layout *lo = com->lc_file_ram;
728 CDEBUG(D_LFSCK, "%s: fail to update OST-objects accessing "
729 "bitmap, and will cause incorrect LFSCK OST-object "
730 "handling, so disable it to cancel orphan handling "
731 "for related device. rc = %d\n",
732 lfsck_lfsck2name(com->lc_lfsck), rc);
734 lo->ll_flags |= LF_INCOMPLETE;
735 lfsck_rbtree_cleanup(env, com);
739 static void lfsck_layout_le_to_cpu(struct lfsck_layout *des,
740 const struct lfsck_layout *src)
744 des->ll_magic = le32_to_cpu(src->ll_magic);
745 des->ll_status = le32_to_cpu(src->ll_status);
746 des->ll_flags = le32_to_cpu(src->ll_flags);
747 des->ll_success_count = le32_to_cpu(src->ll_success_count);
748 des->ll_run_time_phase1 = le32_to_cpu(src->ll_run_time_phase1);
749 des->ll_run_time_phase2 = le32_to_cpu(src->ll_run_time_phase2);
750 des->ll_time_last_complete = le64_to_cpu(src->ll_time_last_complete);
751 des->ll_time_latest_start = le64_to_cpu(src->ll_time_latest_start);
752 des->ll_time_last_checkpoint =
753 le64_to_cpu(src->ll_time_last_checkpoint);
754 des->ll_pos_latest_start = le64_to_cpu(src->ll_pos_latest_start);
755 des->ll_pos_last_checkpoint = le64_to_cpu(src->ll_pos_last_checkpoint);
756 des->ll_pos_first_inconsistent =
757 le64_to_cpu(src->ll_pos_first_inconsistent);
758 des->ll_objs_checked_phase1 = le64_to_cpu(src->ll_objs_checked_phase1);
759 des->ll_objs_failed_phase1 = le64_to_cpu(src->ll_objs_failed_phase1);
760 des->ll_objs_checked_phase2 = le64_to_cpu(src->ll_objs_checked_phase2);
761 des->ll_objs_failed_phase2 = le64_to_cpu(src->ll_objs_failed_phase2);
762 for (i = 0; i < LLIT_MAX; i++)
763 des->ll_objs_repaired[i] =
764 le64_to_cpu(src->ll_objs_repaired[i]);
765 des->ll_objs_skipped = le64_to_cpu(src->ll_objs_skipped);
766 des->ll_bitmap_size = le32_to_cpu(src->ll_bitmap_size);
769 static void lfsck_layout_cpu_to_le(struct lfsck_layout *des,
770 const struct lfsck_layout *src)
774 des->ll_magic = cpu_to_le32(src->ll_magic);
775 des->ll_status = cpu_to_le32(src->ll_status);
776 des->ll_flags = cpu_to_le32(src->ll_flags);
777 des->ll_success_count = cpu_to_le32(src->ll_success_count);
778 des->ll_run_time_phase1 = cpu_to_le32(src->ll_run_time_phase1);
779 des->ll_run_time_phase2 = cpu_to_le32(src->ll_run_time_phase2);
780 des->ll_time_last_complete = cpu_to_le64(src->ll_time_last_complete);
781 des->ll_time_latest_start = cpu_to_le64(src->ll_time_latest_start);
782 des->ll_time_last_checkpoint =
783 cpu_to_le64(src->ll_time_last_checkpoint);
784 des->ll_pos_latest_start = cpu_to_le64(src->ll_pos_latest_start);
785 des->ll_pos_last_checkpoint = cpu_to_le64(src->ll_pos_last_checkpoint);
786 des->ll_pos_first_inconsistent =
787 cpu_to_le64(src->ll_pos_first_inconsistent);
788 des->ll_objs_checked_phase1 = cpu_to_le64(src->ll_objs_checked_phase1);
789 des->ll_objs_failed_phase1 = cpu_to_le64(src->ll_objs_failed_phase1);
790 des->ll_objs_checked_phase2 = cpu_to_le64(src->ll_objs_checked_phase2);
791 des->ll_objs_failed_phase2 = cpu_to_le64(src->ll_objs_failed_phase2);
792 for (i = 0; i < LLIT_MAX; i++)
793 des->ll_objs_repaired[i] =
794 cpu_to_le64(src->ll_objs_repaired[i]);
795 des->ll_objs_skipped = cpu_to_le64(src->ll_objs_skipped);
796 des->ll_bitmap_size = cpu_to_le32(src->ll_bitmap_size);
800 * Load the OST bitmap from the lfsck_layout trace file.
802 * \param[in] env pointer to the thread context
803 * \param[in] com pointer to the lfsck component
805 * \retval 0 for success
806 * \retval negative error number on failure or data corruption
808 static int lfsck_layout_load_bitmap(const struct lu_env *env,
809 struct lfsck_component *com)
811 struct dt_object *obj = com->lc_obj;
812 struct lfsck_assistant_data *lad = com->lc_data;
813 struct lfsck_layout *lo = com->lc_file_ram;
814 cfs_bitmap_t *bitmap = lad->lad_bitmap;
815 loff_t pos = com->lc_file_size;
821 if (com->lc_lfsck->li_ost_descs.ltd_tgts_bitmap->size >
823 nbits = com->lc_lfsck->li_ost_descs.ltd_tgts_bitmap->size;
825 nbits = lo->ll_bitmap_size;
827 if (unlikely(nbits < BITS_PER_LONG))
828 nbits = BITS_PER_LONG;
830 if (nbits > bitmap->size) {
831 __u32 new_bits = bitmap->size;
832 cfs_bitmap_t *new_bitmap;
834 while (new_bits < nbits)
837 new_bitmap = CFS_ALLOCATE_BITMAP(new_bits);
838 if (new_bitmap == NULL)
841 lad->lad_bitmap = new_bitmap;
842 CFS_FREE_BITMAP(bitmap);
846 if (lo->ll_bitmap_size == 0) {
847 lad->lad_incomplete = 0;
848 CFS_RESET_BITMAP(bitmap);
853 size = (lo->ll_bitmap_size + 7) >> 3;
854 rc = dt_read(env, obj, lfsck_buf_get(env, bitmap->data, size), &pos);
856 RETURN(rc >= 0 ? -EINVAL : rc);
858 if (cfs_bitmap_check_empty(bitmap))
859 lad->lad_incomplete = 0;
861 lad->lad_incomplete = 1;
867 * Load the layout LFSCK trace file from disk.
869 * The layout LFSCK trace file records the layout LFSCK status information
870 * and other statistics, such as how many objects have been scanned, and how
871 * many objects have been repaired, and etc. It also contains the bitmap for
872 * failed OSTs during the layout LFSCK. All these information will be loaded
873 * from disk to RAM when the layout LFSCK component setup.
875 * \param[in] env pointer to the thread context
876 * \param[in] com pointer to the lfsck component
878 * \retval positive number for file data corruption, the caller
879 * should reset the layout LFSCK trace file
880 * \retval 0 for success
881 * \retval negative error number on failure
883 static int lfsck_layout_load(const struct lu_env *env,
884 struct lfsck_component *com)
886 struct lfsck_layout *lo = com->lc_file_ram;
887 ssize_t size = com->lc_file_size;
891 rc = dt_read(env, com->lc_obj,
892 lfsck_buf_get(env, com->lc_file_disk, size), &pos);
896 CDEBUG(D_LFSCK, "%s: failed to load lfsck_layout: rc = %d\n",
897 lfsck_lfsck2name(com->lc_lfsck), rc);
899 } else if (rc != size) {
900 CDEBUG(D_LFSCK, "%s: lfsck_layout size %u != %u; reset it\n",
901 lfsck_lfsck2name(com->lc_lfsck), rc, (unsigned int)size);
905 lfsck_layout_le_to_cpu(lo, com->lc_file_disk);
906 if (lo->ll_magic != LFSCK_LAYOUT_MAGIC) {
907 CDEBUG(D_LFSCK, "%s: invalid lfsck_layout magic %#x != %#x, "
908 "to be reset\n", lfsck_lfsck2name(com->lc_lfsck),
909 lo->ll_magic, LFSCK_LAYOUT_MAGIC);
917 * Store the layout LFSCK trace file on disk.
919 * The layout LFSCK trace file records the layout LFSCK status information
920 * and other statistics, such as how many objects have been scanned, and how
921 * many objects have been repaired, and etc. It also contains the bitmap for
922 * failed OSTs during the layout LFSCK. All these information will be synced
923 * from RAM to disk periodically.
925 * \param[in] env pointer to the thread context
926 * \param[in] com pointer to the lfsck component
928 * \retval 0 for success
929 * \retval negative error number on failure
931 static int lfsck_layout_store(const struct lu_env *env,
932 struct lfsck_component *com)
934 struct dt_object *obj = com->lc_obj;
935 struct lfsck_instance *lfsck = com->lc_lfsck;
936 struct lfsck_layout *lo_ram = com->lc_file_ram;
937 struct lfsck_layout *lo = com->lc_file_disk;
939 struct dt_device *dev = lfsck_obj2dev(obj);
940 cfs_bitmap_t *bitmap = NULL;
942 ssize_t size = com->lc_file_size;
947 if (lfsck->li_master) {
948 struct lfsck_assistant_data *lad = com->lc_data;
950 bitmap = lad->lad_bitmap;
951 nbits = bitmap->size;
954 LASSERTF((nbits & 7) == 0, "Invalid nbits %u\n", nbits);
957 lo_ram->ll_bitmap_size = nbits;
958 lfsck_layout_cpu_to_le(lo, lo_ram);
959 th = dt_trans_create(env, dev);
961 GOTO(log, rc = PTR_ERR(th));
963 rc = dt_declare_record_write(env, obj, lfsck_buf_get(env, lo, size),
968 if (bitmap != NULL) {
969 rc = dt_declare_record_write(env, obj,
970 lfsck_buf_get(env, bitmap->data, nbits >> 3),
976 rc = dt_trans_start_local(env, dev, th);
981 rc = dt_record_write(env, obj, lfsck_buf_get(env, lo, size), &pos, th);
985 if (bitmap != NULL) {
987 rc = dt_record_write(env, obj,
988 lfsck_buf_get(env, bitmap->data, nbits >> 3),
995 dt_trans_stop(env, dev, th);
999 CDEBUG(D_LFSCK, "%s: fail to store lfsck_layout: rc = %d\n",
1000 lfsck_lfsck2name(lfsck), rc);
1005 static int lfsck_layout_init(const struct lu_env *env,
1006 struct lfsck_component *com)
1008 struct lfsck_layout *lo = com->lc_file_ram;
1011 memset(lo, 0, com->lc_file_size);
1012 lo->ll_magic = LFSCK_LAYOUT_MAGIC;
1013 lo->ll_status = LS_INIT;
1014 down_write(&com->lc_sem);
1015 rc = lfsck_layout_store(env, com);
1016 up_write(&com->lc_sem);
1021 static int fid_is_for_ostobj(const struct lu_env *env,
1022 struct lfsck_instance *lfsck,
1023 struct dt_object *obj, const struct lu_fid *fid)
1025 struct seq_server_site *ss = lfsck_dev_site(lfsck);
1026 struct lu_seq_range *range = &lfsck_env_info(env)->lti_range;
1027 struct lustre_mdt_attrs *lma;
1030 fld_range_set_any(range);
1031 rc = fld_server_lookup(env, ss->ss_server_fld, fid_seq(fid), range);
1033 if (fld_range_is_ost(range))
1039 lma = &lfsck_env_info(env)->lti_lma;
1040 rc = dt_xattr_get(env, obj, lfsck_buf_get(env, lma, sizeof(*lma)),
1041 XATTR_NAME_LMA, BYPASS_CAPA);
1042 if (rc == sizeof(*lma)) {
1043 lustre_lma_swab(lma);
1045 return lma->lma_compat & LMAC_FID_ON_OST ? 1 : 0;
1048 rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_FID, BYPASS_CAPA);
1053 static struct lfsck_layout_seq *
1054 lfsck_layout_seq_lookup(struct lfsck_layout_slave_data *llsd, __u64 seq)
1056 struct lfsck_layout_seq *lls;
1058 list_for_each_entry(lls, &llsd->llsd_seq_list, lls_list) {
1059 if (lls->lls_seq == seq)
1062 if (lls->lls_seq > seq)
1070 lfsck_layout_seq_insert(struct lfsck_layout_slave_data *llsd,
1071 struct lfsck_layout_seq *lls)
1073 struct lfsck_layout_seq *tmp;
1074 struct list_head *pos = &llsd->llsd_seq_list;
1076 list_for_each_entry(tmp, &llsd->llsd_seq_list, lls_list) {
1077 if (lls->lls_seq < tmp->lls_seq) {
1078 pos = &tmp->lls_list;
1082 list_add_tail(&lls->lls_list, pos);
1086 lfsck_layout_lastid_create(const struct lu_env *env,
1087 struct lfsck_instance *lfsck,
1088 struct dt_object *obj)
1090 struct lfsck_thread_info *info = lfsck_env_info(env);
1091 struct lu_attr *la = &info->lti_la;
1092 struct dt_object_format *dof = &info->lti_dof;
1093 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
1094 struct dt_device *dt = lfsck_obj2dev(obj);
1101 if (bk->lb_param & LPF_DRYRUN)
1104 memset(la, 0, sizeof(*la));
1105 la->la_mode = S_IFREG | S_IRUGO | S_IWUSR;
1106 la->la_valid = LA_MODE | LA_UID | LA_GID;
1107 memset(dof, 0, sizeof(*dof));
1108 dof->dof_type = dt_mode_to_dft(S_IFREG);
1110 th = dt_trans_create(env, dt);
1112 GOTO(log, rc = PTR_ERR(th));
1114 rc = dt_declare_create(env, obj, la, NULL, dof, th);
1118 rc = dt_declare_record_write(env, obj,
1119 lfsck_buf_get(env, &lastid,
1125 rc = dt_trans_start_local(env, dt, th);
1129 dt_write_lock(env, obj, 0);
1130 if (likely(dt_object_exists(obj) == 0)) {
1131 rc = dt_create(env, obj, la, NULL, dof, th);
1133 rc = dt_record_write(env, obj,
1134 lfsck_buf_get(env, &lastid, sizeof(lastid)),
1137 dt_write_unlock(env, obj);
1142 dt_trans_stop(env, dt, th);
1145 CDEBUG(D_LFSCK, "%s: layout LFSCK will create LAST_ID for <seq> "
1147 lfsck_lfsck2name(lfsck), fid_seq(lfsck_dto2fid(obj)), rc);
1153 lfsck_layout_lastid_reload(const struct lu_env *env,
1154 struct lfsck_component *com,
1155 struct lfsck_layout_seq *lls)
1161 dt_read_lock(env, lls->lls_lastid_obj, 0);
1162 rc = dt_record_read(env, lls->lls_lastid_obj,
1163 lfsck_buf_get(env, &lastid, sizeof(lastid)), &pos);
1164 dt_read_unlock(env, lls->lls_lastid_obj);
1165 if (unlikely(rc != 0))
1168 lastid = le64_to_cpu(lastid);
1169 if (lastid < lls->lls_lastid_known) {
1170 struct lfsck_instance *lfsck = com->lc_lfsck;
1171 struct lfsck_layout *lo = com->lc_file_ram;
1173 lls->lls_lastid = lls->lls_lastid_known;
1175 if (!(lo->ll_flags & LF_CRASHED_LASTID)) {
1176 LASSERT(lfsck->li_out_notify != NULL);
1178 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
1179 LE_LASTID_REBUILDING);
1180 lo->ll_flags |= LF_CRASHED_LASTID;
1182 CDEBUG(D_LFSCK, "%s: layout LFSCK finds crashed "
1183 "LAST_ID file (1) for the sequence "LPX64
1184 ", old value "LPU64", known value "LPU64"\n",
1185 lfsck_lfsck2name(lfsck), lls->lls_seq,
1186 lastid, lls->lls_lastid);
1188 } else if (lastid >= lls->lls_lastid) {
1189 lls->lls_lastid = lastid;
1197 lfsck_layout_lastid_store(const struct lu_env *env,
1198 struct lfsck_component *com)
1200 struct lfsck_instance *lfsck = com->lc_lfsck;
1201 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
1202 struct dt_device *dt = lfsck->li_bottom;
1203 struct lfsck_layout_slave_data *llsd = com->lc_data;
1204 struct lfsck_layout_seq *lls;
1210 list_for_each_entry(lls, &llsd->llsd_seq_list, lls_list) {
1213 if (!lls->lls_dirty)
1216 CDEBUG(D_LFSCK, "%s: layout LFSCK will sync the LAST_ID for "
1217 "<seq> "LPX64" as <oid> "LPU64"\n",
1218 lfsck_lfsck2name(lfsck), lls->lls_seq, lls->lls_lastid);
1220 if (bk->lb_param & LPF_DRYRUN) {
1225 th = dt_trans_create(env, dt);
1228 CDEBUG(D_LFSCK, "%s: layout LFSCK failed to store "
1229 "the LAST_ID for <seq> "LPX64"(1): rc = %d\n",
1230 lfsck_lfsck2name(com->lc_lfsck),
1235 lastid = cpu_to_le64(lls->lls_lastid);
1236 rc = dt_declare_record_write(env, lls->lls_lastid_obj,
1237 lfsck_buf_get(env, &lastid,
1243 rc = dt_trans_start_local(env, dt, th);
1247 dt_write_lock(env, lls->lls_lastid_obj, 0);
1248 rc = dt_record_write(env, lls->lls_lastid_obj,
1249 lfsck_buf_get(env, &lastid,
1250 sizeof(lastid)), &pos, th);
1251 dt_write_unlock(env, lls->lls_lastid_obj);
1256 dt_trans_stop(env, dt, th);
1259 CDEBUG(D_LFSCK, "%s: layout LFSCK failed to store "
1260 "the LAST_ID for <seq> "LPX64"(2): rc = %d\n",
1261 lfsck_lfsck2name(com->lc_lfsck),
1270 lfsck_layout_lastid_load(const struct lu_env *env,
1271 struct lfsck_component *com,
1272 struct lfsck_layout_seq *lls)
1274 struct lfsck_instance *lfsck = com->lc_lfsck;
1275 struct lfsck_layout *lo = com->lc_file_ram;
1276 struct lu_fid *fid = &lfsck_env_info(env)->lti_fid;
1277 struct dt_object *obj;
1282 lu_last_id_fid(fid, lls->lls_seq, lfsck_dev_idx(lfsck));
1283 obj = dt_locate(env, lfsck->li_bottom, fid);
1285 RETURN(PTR_ERR(obj));
1287 /* LAST_ID crashed, to be rebuilt */
1288 if (dt_object_exists(obj) == 0) {
1289 if (!(lo->ll_flags & LF_CRASHED_LASTID)) {
1290 LASSERT(lfsck->li_out_notify != NULL);
1292 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
1293 LE_LASTID_REBUILDING);
1294 lo->ll_flags |= LF_CRASHED_LASTID;
1296 CDEBUG(D_LFSCK, "%s: layout LFSCK cannot find the "
1297 "LAST_ID file for sequence "LPX64"\n",
1298 lfsck_lfsck2name(lfsck), lls->lls_seq);
1300 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY4) &&
1302 struct l_wait_info lwi = LWI_TIMEOUT(
1303 cfs_time_seconds(cfs_fail_val),
1306 /* Some others may changed the cfs_fail_val
1307 * as zero after above check, re-check it for
1308 * sure to avoid falling into wait for ever. */
1309 if (likely(lwi.lwi_timeout > 0)) {
1310 struct ptlrpc_thread *thread =
1313 up_write(&com->lc_sem);
1314 l_wait_event(thread->t_ctl_waitq,
1315 !thread_is_running(thread),
1317 down_write(&com->lc_sem);
1322 rc = lfsck_layout_lastid_create(env, lfsck, obj);
1324 dt_read_lock(env, obj, 0);
1325 rc = dt_read(env, obj,
1326 lfsck_buf_get(env, &lls->lls_lastid, sizeof(__u64)),
1328 dt_read_unlock(env, obj);
1329 if (rc != 0 && rc != sizeof(__u64))
1330 GOTO(out, rc = (rc > 0 ? -EFAULT : rc));
1332 if (rc == 0 && !(lo->ll_flags & LF_CRASHED_LASTID)) {
1333 LASSERT(lfsck->li_out_notify != NULL);
1335 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
1336 LE_LASTID_REBUILDING);
1337 lo->ll_flags |= LF_CRASHED_LASTID;
1339 CDEBUG(D_LFSCK, "%s: layout LFSCK finds invalid "
1340 "LAST_ID file for the sequence "LPX64
1342 lfsck_lfsck2name(lfsck), lls->lls_seq, rc);
1345 lls->lls_lastid = le64_to_cpu(lls->lls_lastid);
1353 lfsck_object_put(env, obj);
1355 lls->lls_lastid_obj = obj;
1360 static void lfsck_layout_record_failure(const struct lu_env *env,
1361 struct lfsck_instance *lfsck,
1362 struct lfsck_layout *lo)
1366 lo->ll_objs_failed_phase1++;
1367 cookie = lfsck->li_obj_oit->do_index_ops->dio_it.store(env,
1369 if (lo->ll_pos_first_inconsistent == 0 ||
1370 lo->ll_pos_first_inconsistent < cookie) {
1371 lo->ll_pos_first_inconsistent = cookie;
1373 CDEBUG(D_LFSCK, "%s: layout LFSCK hit first non-repaired "
1374 "inconsistency at the pos ["LPU64"]\n",
1375 lfsck_lfsck2name(lfsck),
1376 lo->ll_pos_first_inconsistent);
1380 static int lfsck_layout_double_scan_result(const struct lu_env *env,
1381 struct lfsck_component *com,
1384 struct lfsck_instance *lfsck = com->lc_lfsck;
1385 struct lfsck_layout *lo = com->lc_file_ram;
1387 down_write(&com->lc_sem);
1388 lo->ll_run_time_phase2 += cfs_duration_sec(cfs_time_current() +
1389 HALF_SEC - lfsck->li_time_last_checkpoint);
1390 lo->ll_time_last_checkpoint = cfs_time_current_sec();
1391 lo->ll_objs_checked_phase2 += com->lc_new_checked;
1394 if (lo->ll_flags & LF_INCOMPLETE) {
1395 lo->ll_status = LS_PARTIAL;
1397 if (lfsck->li_master) {
1398 struct lfsck_assistant_data *lad = com->lc_data;
1400 if (lad->lad_incomplete)
1401 lo->ll_status = LS_PARTIAL;
1403 lo->ll_status = LS_COMPLETED;
1405 lo->ll_status = LS_COMPLETED;
1408 if (!(lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN))
1409 lo->ll_flags &= ~(LF_SCANNED_ONCE | LF_INCONSISTENT);
1410 lo->ll_time_last_complete = lo->ll_time_last_checkpoint;
1411 lo->ll_success_count++;
1412 } else if (rc == 0) {
1413 if (lfsck->li_status != 0)
1414 lo->ll_status = lfsck->li_status;
1416 lo->ll_status = LS_STOPPED;
1418 lo->ll_status = LS_FAILED;
1421 rc = lfsck_layout_store(env, com);
1422 up_write(&com->lc_sem);
1427 static int lfsck_layout_trans_stop(const struct lu_env *env,
1428 struct dt_device *dev,
1429 struct thandle *handle, int result)
1433 handle->th_result = result;
1434 rc = dt_trans_stop(env, dev, handle);
1444 * Get the system default stripe size.
1446 * \param[in] env pointer to the thread context
1447 * \param[in] lfsck pointer to the lfsck instance
1448 * \param[out] size pointer to the default stripe size
1450 * \retval 0 for success
1451 * \retval negative error number on failure
1453 static int lfsck_layout_get_def_stripesize(const struct lu_env *env,
1454 struct lfsck_instance *lfsck,
1457 struct lov_user_md *lum = &lfsck_env_info(env)->lti_lum;
1458 struct dt_object *root;
1461 root = dt_locate(env, lfsck->li_next, &lfsck->li_local_root_fid);
1463 return PTR_ERR(root);
1465 /* Get the default stripe size via xattr_get on the backend root. */
1466 rc = dt_xattr_get(env, root, lfsck_buf_get(env, lum, sizeof(*lum)),
1467 XATTR_NAME_LOV, BYPASS_CAPA);
1469 /* The lum->lmm_stripe_size is LE mode. The *size also
1470 * should be LE mode. So it is unnecessary to convert. */
1471 *size = lum->lmm_stripe_size;
1473 } else if (unlikely(rc == 0)) {
1477 lfsck_object_put(env, root);
1483 * \retval +1: repaired
1484 * \retval 0: did nothing
1485 * \retval -ve: on error
1487 static int lfsck_layout_refill_lovea(const struct lu_env *env,
1488 struct thandle *handle,
1489 struct dt_object *parent,
1490 struct lu_fid *cfid,
1492 struct lov_ost_data_v1 *slot,
1493 int fl, __u32 ost_idx)
1495 struct ost_id *oi = &lfsck_env_info(env)->lti_oi;
1496 struct lov_mds_md_v1 *lmm = buf->lb_buf;
1497 struct lu_buf ea_buf;
1503 magic = le32_to_cpu(lmm->lmm_magic);
1504 count = le16_to_cpu(lmm->lmm_stripe_count);
1506 fid_to_ostid(cfid, oi);
1507 ostid_cpu_to_le(oi, &slot->l_ost_oi);
1508 slot->l_ost_gen = cpu_to_le32(0);
1509 slot->l_ost_idx = cpu_to_le32(ost_idx);
1511 if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_HOLE) {
1512 struct lov_ost_data_v1 *objs;
1515 if (magic == LOV_MAGIC_V1)
1516 objs = &lmm->lmm_objects[0];
1518 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
1519 for (i = 0; i < count; i++, objs++) {
1520 if (objs != slot && lovea_slot_is_dummy(objs))
1524 /* If the @slot is the last dummy slot to be refilled,
1525 * then drop LOV_PATTERN_F_HOLE from lmm::lmm_pattern. */
1527 lmm->lmm_pattern &= ~cpu_to_le32(LOV_PATTERN_F_HOLE);
1530 lfsck_buf_init(&ea_buf, lmm, lov_mds_md_size(count, magic));
1531 rc = dt_xattr_set(env, parent, &ea_buf, XATTR_NAME_LOV, fl, handle,
1540 * \retval +1: repaired
1541 * \retval 0: did nothing
1542 * \retval -ve: on error
1544 static int lfsck_layout_extend_lovea(const struct lu_env *env,
1545 struct lfsck_instance *lfsck,
1546 struct thandle *handle,
1547 struct dt_object *parent,
1548 struct lu_fid *cfid,
1549 struct lu_buf *buf, int fl,
1550 __u32 ost_idx, __u32 ea_off, bool reset)
1552 struct lov_mds_md_v1 *lmm = buf->lb_buf;
1553 struct lov_ost_data_v1 *objs;
1559 if (fl == LU_XATTR_CREATE || reset) {
1560 __u32 pattern = LOV_PATTERN_RAID0;
1563 LASSERT(buf->lb_len >= lov_mds_md_size(count, LOV_MAGIC_V1));
1565 if (ea_off != 0 || reset) {
1566 pattern |= LOV_PATTERN_F_HOLE;
1570 memset(lmm, 0, buf->lb_len);
1571 lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1);
1572 lmm->lmm_pattern = cpu_to_le32(pattern);
1573 fid_to_lmm_oi(lfsck_dto2fid(parent), &lmm->lmm_oi);
1574 lmm_oi_cpu_to_le(&lmm->lmm_oi, &lmm->lmm_oi);
1576 rc = lfsck_layout_get_def_stripesize(env, lfsck,
1577 &lmm->lmm_stripe_size);
1581 objs = &lmm->lmm_objects[ea_off];
1583 __u32 magic = le32_to_cpu(lmm->lmm_magic);
1586 count = le16_to_cpu(lmm->lmm_stripe_count);
1587 if (magic == LOV_MAGIC_V1)
1588 objs = &lmm->lmm_objects[count];
1590 objs = &((struct lov_mds_md_v3 *)lmm)->
1593 gap = ea_off - count;
1596 LASSERT(buf->lb_len >= lov_mds_md_size(count, magic));
1599 memset(objs, 0, gap * sizeof(*objs));
1600 lmm->lmm_pattern |= cpu_to_le32(LOV_PATTERN_F_HOLE);
1604 lmm->lmm_layout_gen =
1605 cpu_to_le16(le16_to_cpu(lmm->lmm_layout_gen) + 1);
1609 lmm->lmm_stripe_count = cpu_to_le16(count);
1610 rc = lfsck_layout_refill_lovea(env, handle, parent, cfid, buf, objs,
1613 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant extend layout EA for "
1614 DFID": parent "DFID", OST-index %u, stripe-index %u, fl %d, "
1615 "reset %s, %s LOV EA hole: rc = %d\n",
1616 lfsck_lfsck2name(lfsck), PFID(cfid), PFID(lfsck_dto2fid(parent)),
1617 ost_idx, ea_off, fl, reset ? "yes" : "no",
1618 hole ? "with" : "without", rc);
1623 static int __lfsck_layout_update_pfid(const struct lu_env *env,
1624 struct dt_object *child,
1625 const struct lu_fid *pfid, __u32 offset)
1627 struct dt_device *dev = lfsck_obj2dev(child);
1628 struct filter_fid *ff = &lfsck_env_info(env)->lti_new_pfid;
1629 struct thandle *handle;
1630 struct lu_buf buf = { NULL };
1633 ff->ff_parent.f_seq = cpu_to_le64(pfid->f_seq);
1634 ff->ff_parent.f_oid = cpu_to_le32(pfid->f_oid);
1635 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
1636 * MDT-object's FID::f_ver, instead it is the OST-object index in its
1637 * parent MDT-object's layout EA. */
1638 ff->ff_parent.f_stripe_idx = cpu_to_le32(offset);
1639 lfsck_buf_init(&buf, ff, sizeof(struct filter_fid));
1641 handle = dt_trans_create(env, dev);
1643 RETURN(PTR_ERR(handle));
1645 rc = dt_declare_xattr_set(env, child, &buf, XATTR_NAME_FID, 0, handle);
1649 rc = dt_trans_start_local(env, dev, handle);
1653 rc = dt_xattr_set(env, child, &buf, XATTR_NAME_FID, 0, handle,
1659 dt_trans_stop(env, dev, handle);
1665 * \retval +1: repaired
1666 * \retval 0: did nothing
1667 * \retval -ve: on error
1669 static int lfsck_layout_update_pfid(const struct lu_env *env,
1670 struct lfsck_component *com,
1671 struct dt_object *parent,
1672 struct lu_fid *cfid,
1673 struct dt_device *cdev, __u32 ea_off)
1675 struct dt_object *child;
1679 child = lfsck_object_find_by_dev(env, cdev, cfid);
1681 RETURN(PTR_ERR(child));
1683 rc = __lfsck_layout_update_pfid(env, child,
1684 lu_object_fid(&parent->do_lu), ea_off);
1685 lfsck_object_put(env, child);
1687 RETURN(rc == 0 ? 1 : rc);
1691 * This function will create the MDT-object with the given (partial) LOV EA.
1693 * Under some data corruption cases, the MDT-object of the file may be lost,
1694 * but its OST-objects, or some of them are there. The layout LFSCK needs to
1695 * re-create the MDT-object with the orphan OST-object(s) information.
1697 * On the other hand, the LFSCK may has created some OST-object for repairing
1698 * dangling LOV EA reference, but as the LFSCK processing, it may find that
1699 * the old OST-object is there and should replace the former new created OST
1700 * object. Unfortunately, some others have modified such newly created object.
1701 * To keep the data (both new and old), the LFSCK will create MDT-object with
1702 * new FID to reference the original OST-object.
1704 * \param[in] env pointer to the thread context
1705 * \param[in] com pointer to the lfsck component
1706 * \param[in] ltd pointer to target device descriptor
1707 * \param[in] rec pointer to the record for the orphan OST-object
1708 * \param[in] cfid pointer to FID for the orphan OST-object
1709 * \param[in] infix additional information, such as the FID for original
1710 * MDT-object and the stripe offset in the LOV EA
1711 * \param[in] type the type for describing why the orphan MDT-object is
1712 * created. The rules are as following:
1714 * type "C": Multiple OST-objects claim the same MDT-object and the
1715 * same slot in the layout EA. Then the LFSCK will create
1716 * new MDT-object(s) to hold the conflict OST-object(s).
1718 * type "N": The orphan OST-object does not know which one was the
1719 * real parent MDT-object, so the LFSCK uses new FID for
1720 * its parent MDT-object.
1722 * type "R": The orphan OST-object knows its parent MDT-object FID,
1723 * but does not know the position (the file name) in the
1726 * type "D": The MDT-object is a directory, it may knows its parent
1727 * but because there is no valid linkEA, the LFSCK cannot
1728 * know where to put it back to the namespace.
1729 * type "O": The MDT-object has no linkEA, and there is no name
1730 * entry that references the MDT-object.
1732 * type "P": The orphan object to be created was a parent directory
1733 * of some MDT-object which linkEA shows that the @orphan
1734 * object is missing.
1736 * The orphan name will be like:
1737 * ${FID}-${infix}-${type}-${conflict_version}
1739 * \param[in] ea_off the stripe offset in the LOV EA
1741 * \retval positive on repaired something
1742 * \retval 0 if needs to repair nothing
1743 * \retval negative error number on failure
1745 static int lfsck_layout_recreate_parent(const struct lu_env *env,
1746 struct lfsck_component *com,
1747 struct lfsck_tgt_desc *ltd,
1748 struct lu_orphan_rec *rec,
1749 struct lu_fid *cfid,
1754 struct lfsck_thread_info *info = lfsck_env_info(env);
1755 struct dt_insert_rec *dtrec = &info->lti_dt_rec;
1756 char *name = info->lti_key;
1757 struct lu_attr *la = &info->lti_la;
1758 struct dt_object_format *dof = &info->lti_dof;
1759 struct lfsck_instance *lfsck = com->lc_lfsck;
1760 struct lu_fid *pfid = &rec->lor_fid;
1761 struct lu_fid *tfid = &info->lti_fid3;
1762 struct dt_device *dev = lfsck->li_bottom;
1763 struct dt_object *lpf = lfsck->li_lpf_obj;
1764 struct dt_object *pobj = NULL;
1765 struct dt_object *cobj = NULL;
1766 struct thandle *th = NULL;
1767 struct lu_buf *ea_buf = &info->lti_big_buf;
1768 struct lu_buf lov_buf;
1769 struct lfsck_lock_handle *llh = &info->lti_llh;
1770 struct linkea_data ldata = { NULL };
1771 struct lu_buf linkea_buf;
1772 const struct lu_name *pname;
1778 if (unlikely(lpf == NULL))
1779 GOTO(log, rc = -ENXIO);
1781 /* We use two separated transactions to repair the inconsistency.
1783 * 1) create the MDT-object locally.
1784 * 2) update the OST-object's PFID EA if necessary.
1786 * If 1) succeed, but 2) failed, then the OST-object's PFID EA will be
1787 * updated when the layout LFSCK run next time.
1789 * If 1) failed, but 2) succeed, then such MDT-object will be re-created
1790 * when the layout LFSCK run next time. */
1792 if (fid_is_zero(pfid)) {
1793 rc = lfsck_fid_alloc(env, lfsck, pfid, false);
1797 cobj = lfsck_object_find_by_dev(env, ltd->ltd_tgt, cfid);
1799 GOTO(log, rc = PTR_ERR(cobj));
1802 pobj = lfsck_object_find_by_dev(env, dev, pfid);
1804 GOTO(log, rc = PTR_ERR(pobj));
1806 LASSERT(infix != NULL);
1807 LASSERT(type != NULL);
1809 memset(la, 0, sizeof(*la));
1810 la->la_uid = rec->lor_uid;
1811 la->la_gid = rec->lor_gid;
1812 la->la_mode = S_IFREG | S_IRUSR;
1813 la->la_valid = LA_MODE | LA_UID | LA_GID;
1815 memset(dof, 0, sizeof(*dof));
1816 dof->dof_type = dt_mode_to_dft(S_IFREG);
1817 /* Because the dof->dof_reg.striped = 0, the LOD will not create
1818 * the stripe(s). The LFSCK will specify the LOV EA via
1819 * lfsck_layout_extend_lovea(). */
1821 size = lov_mds_md_size(ea_off + 1, LOV_MAGIC_V1);
1822 if (ea_buf->lb_len < size) {
1823 lu_buf_realloc(ea_buf, size);
1824 if (ea_buf->lb_buf == NULL)
1825 GOTO(log, rc = -ENOMEM);
1830 snprintf(name, NAME_MAX, DFID"%s-%s-%d", PFID(pfid), infix,
1832 rc = dt_lookup(env, lfsck->li_lpf_obj, (struct dt_rec *)tfid,
1833 (const struct dt_key *)name, BYPASS_CAPA);
1834 if (rc != 0 && rc != -ENOENT)
1838 rc = lfsck_lock(env, lfsck, lfsck->li_lpf_obj, name, llh,
1839 MDS_INODELOCK_UPDATE, LCK_PW);
1843 /* Re-check whether the name conflict with othrs after taken
1845 rc = dt_lookup(env, lfsck->li_lpf_obj, (struct dt_rec *)tfid,
1846 (const struct dt_key *)name, BYPASS_CAPA);
1847 if (unlikely(rc == 0)) {
1855 rc = linkea_data_new(&ldata,
1856 &lfsck_env_info(env)->lti_linkea_buf);
1860 pname = lfsck_name_get_const(env, name, strlen(name));
1861 rc = linkea_add_buf(&ldata, pname, lfsck_dto2fid(lfsck->li_lpf_obj));
1865 /* The 1st transaction. */
1866 th = dt_trans_create(env, dev);
1868 GOTO(unlock, rc = PTR_ERR(th));
1870 rc = dt_declare_create(env, pobj, la, NULL, dof, th);
1874 lfsck_buf_init(&lov_buf, ea_buf->lb_buf, size);
1875 rc = dt_declare_xattr_set(env, pobj, &lov_buf, XATTR_NAME_LOV,
1876 LU_XATTR_REPLACE, th);
1880 dtrec->rec_fid = pfid;
1881 dtrec->rec_type = S_IFREG;
1882 rc = dt_declare_insert(env, lpf,
1883 (const struct dt_rec *)dtrec,
1884 (const struct dt_key *)name, th);
1888 lfsck_buf_init(&linkea_buf, ldata.ld_buf->lb_buf,
1889 ldata.ld_leh->leh_len);
1890 rc = dt_declare_xattr_set(env, pobj, &linkea_buf,
1891 XATTR_NAME_LINK, 0, th);
1895 rc = dt_trans_start_local(env, dev, th);
1899 dt_write_lock(env, pobj, 0);
1900 rc = dt_create(env, pobj, la, NULL, dof, th);
1902 rc = lfsck_layout_extend_lovea(env, lfsck, th, pobj, cfid,
1903 &lov_buf, 0, ltd->ltd_index, ea_off, true);
1904 dt_write_unlock(env, pobj);
1908 rc = dt_insert(env, lpf, (const struct dt_rec *)dtrec,
1909 (const struct dt_key *)name, th, BYPASS_CAPA, 1);
1913 rc = dt_xattr_set(env, pobj, &linkea_buf,
1914 XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
1915 if (rc == 0 && cobj != NULL) {
1916 dt_trans_stop(env, dev, th);
1919 /* The 2nd transaction. */
1920 rc = __lfsck_layout_update_pfid(env, cobj, pfid, ea_off);
1927 dt_trans_stop(env, dev, th);
1933 if (cobj != NULL && !IS_ERR(cobj))
1934 lfsck_object_put(env, cobj);
1935 if (pobj != NULL && !IS_ERR(pobj))
1936 lfsck_object_put(env, pobj);
1939 CDEBUG(D_LFSCK, "%s layout LFSCK assistant failed to "
1940 "recreate the lost MDT-object: parent "DFID
1941 ", child "DFID", OST-index %u, stripe-index %u, "
1942 "infix %s, type %s: rc = %d\n",
1943 lfsck_lfsck2name(lfsck), PFID(pfid), PFID(cfid),
1944 ltd->ltd_index, ea_off, infix, type, rc);
1946 return rc >= 0 ? 1 : rc;
1949 static int lfsck_layout_master_conditional_destroy(const struct lu_env *env,
1950 struct lfsck_component *com,
1951 const struct lu_fid *fid,
1954 struct lfsck_thread_info *info = lfsck_env_info(env);
1955 struct lfsck_request *lr = &info->lti_lr;
1956 struct lfsck_instance *lfsck = com->lc_lfsck;
1957 struct lfsck_tgt_desc *ltd;
1958 struct ptlrpc_request *req;
1959 struct lfsck_request *tmp;
1960 struct obd_export *exp;
1964 ltd = lfsck_tgt_get(&lfsck->li_ost_descs, index);
1965 if (unlikely(ltd == NULL))
1969 if (!(exp_connect_flags(exp) & OBD_CONNECT_LFSCK))
1970 GOTO(put, rc = -EOPNOTSUPP);
1972 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LFSCK_NOTIFY);
1974 GOTO(put, rc = -ENOMEM);
1976 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_NOTIFY);
1978 ptlrpc_request_free(req);
1983 memset(lr, 0, sizeof(*lr));
1984 lr->lr_event = LE_CONDITIONAL_DESTROY;
1985 lr->lr_active = LFSCK_TYPE_LAYOUT;
1988 tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
1990 ptlrpc_request_set_replen(req);
1992 rc = ptlrpc_queue_wait(req);
1993 ptlrpc_req_finished(req);
2003 static int lfsck_layout_slave_conditional_destroy(const struct lu_env *env,
2004 struct lfsck_component *com,
2005 struct lfsck_request *lr)
2007 struct lfsck_thread_info *info = lfsck_env_info(env);
2008 struct lu_attr *la = &info->lti_la;
2009 ldlm_policy_data_t *policy = &info->lti_policy;
2010 struct ldlm_res_id *resid = &info->lti_resid;
2011 struct lfsck_instance *lfsck = com->lc_lfsck;
2012 struct dt_device *dev = lfsck->li_bottom;
2013 struct lu_fid *fid = &lr->lr_fid;
2014 struct dt_object *obj;
2015 struct thandle *th = NULL;
2016 struct lustre_handle lh = { 0 };
2021 obj = lfsck_object_find_by_dev(env, dev, fid);
2023 RETURN(PTR_ERR(obj));
2025 dt_read_lock(env, obj, 0);
2026 if (dt_object_exists(obj) == 0 ||
2027 lfsck_is_dead_obj(obj)) {
2028 dt_read_unlock(env, obj);
2030 GOTO(put, rc = -ENOENT);
2033 /* Get obj's attr without lock firstly. */
2034 rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
2035 dt_read_unlock(env, obj);
2039 if (likely(la->la_ctime != 0 || la->la_mode & S_ISUID))
2040 GOTO(put, rc = -ETXTBSY);
2042 /* Acquire extent lock on [0, EOF] to sync with all possible written. */
2043 LASSERT(lfsck->li_namespace != NULL);
2045 memset(policy, 0, sizeof(*policy));
2046 policy->l_extent.end = OBD_OBJECT_EOF;
2047 ost_fid_build_resid(fid, resid);
2048 rc = ldlm_cli_enqueue_local(lfsck->li_namespace, resid, LDLM_EXTENT,
2049 policy, LCK_EX, &flags, ldlm_blocking_ast,
2050 ldlm_completion_ast, NULL, NULL, 0,
2051 LVB_T_NONE, NULL, &lh);
2053 GOTO(put, rc = -EIO);
2055 dt_write_lock(env, obj, 0);
2056 /* Get obj's attr within lock again. */
2057 rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
2061 if (la->la_ctime != 0)
2062 GOTO(unlock, rc = -ETXTBSY);
2064 th = dt_trans_create(env, dev);
2066 GOTO(unlock, rc = PTR_ERR(th));
2068 rc = dt_declare_ref_del(env, obj, th);
2072 rc = dt_declare_destroy(env, obj, th);
2076 rc = dt_trans_start_local(env, dev, th);
2080 rc = dt_ref_del(env, obj, th);
2084 rc = dt_destroy(env, obj, th);
2086 CDEBUG(D_LFSCK, "%s: layout LFSCK destroyed the empty "
2087 "OST-object "DFID" that was created for reparing "
2088 "dangling referenced case. But the original missing "
2089 "OST-object is found now.\n",
2090 lfsck_lfsck2name(lfsck), PFID(fid));
2095 dt_trans_stop(env, dev, th);
2098 dt_write_unlock(env, obj);
2099 ldlm_lock_decref(&lh, LCK_EX);
2102 lfsck_object_put(env, obj);
2108 * Some OST-object has occupied the specified layout EA slot.
2109 * Such OST-object may be generated by the LFSCK when repair
2110 * dangling referenced MDT-object, which can be indicated by
2111 * attr::la_ctime == 0 but without S_ISUID in la_mode. If it
2112 * is true and such OST-object has not been modified yet, we
2113 * will replace it with the orphan OST-object; otherwise the
2114 * LFSCK will create new MDT-object to reference the orphan.
2116 * \retval +1: repaired
2117 * \retval 0: did nothing
2118 * \retval -ve: on error
2120 static int lfsck_layout_conflict_create(const struct lu_env *env,
2121 struct lfsck_component *com,
2122 struct lfsck_tgt_desc *ltd,
2123 struct lu_orphan_rec *rec,
2124 struct dt_object *parent,
2125 struct lu_fid *cfid,
2126 struct lu_buf *ea_buf,
2127 struct lov_ost_data_v1 *slot,
2130 struct lfsck_thread_info *info = lfsck_env_info(env);
2131 struct lu_fid *cfid2 = &info->lti_fid2;
2132 struct ost_id *oi = &info->lti_oi;
2133 struct lov_mds_md_v1 *lmm = ea_buf->lb_buf;
2134 struct dt_device *dev = lfsck_obj2dev(parent);
2135 struct thandle *th = NULL;
2136 struct lustre_handle lh = { 0 };
2137 __u32 ost_idx2 = le32_to_cpu(slot->l_ost_idx);
2141 ostid_le_to_cpu(&slot->l_ost_oi, oi);
2142 rc = ostid_to_fid(cfid2, oi, ost_idx2);
2146 rc = lfsck_ibits_lock(env, com->lc_lfsck, parent, &lh,
2147 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR,
2152 rc = lfsck_layout_master_conditional_destroy(env, com, cfid2, ost_idx2);
2154 /* If the conflict OST-obejct is not created for fixing dangling
2155 * referenced MDT-object in former LFSCK check/repair, or it has
2156 * been modified by others, then we cannot destroy it. Re-create
2157 * a new MDT-object for the orphan OST-object. */
2158 if (rc == -ETXTBSY) {
2159 /* No need the layout lock on the original parent. */
2160 lfsck_ibits_unlock(&lh, LCK_EX);
2162 fid_zero(&rec->lor_fid);
2163 snprintf(info->lti_tmpbuf, sizeof(info->lti_tmpbuf),
2164 "-"DFID"-%x", PFID(lu_object_fid(&parent->do_lu)),
2166 rc = lfsck_layout_recreate_parent(env, com, ltd, rec, cfid,
2167 info->lti_tmpbuf, "C", ea_off);
2172 if (rc != 0 && rc != -ENOENT)
2175 th = dt_trans_create(env, dev);
2177 GOTO(unlock, rc = PTR_ERR(th));
2179 rc = dt_declare_xattr_set(env, parent, ea_buf, XATTR_NAME_LOV,
2180 LU_XATTR_REPLACE, th);
2184 rc = dt_trans_start_local(env, dev, th);
2188 dt_write_lock(env, parent, 0);
2189 lmm->lmm_layout_gen = cpu_to_le16(le16_to_cpu(lmm->lmm_layout_gen) + 1);
2190 rc = lfsck_layout_refill_lovea(env, th, parent, cfid, ea_buf, slot,
2191 LU_XATTR_REPLACE, ltd->ltd_index);
2192 dt_write_unlock(env, parent);
2197 dt_trans_stop(env, dev, th);
2200 lfsck_ibits_unlock(&lh, LCK_EX);
2203 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant replaced the conflict "
2204 "OST-object "DFID" on the OST %x with the orphan "DFID" on "
2205 "the OST %x: parent "DFID", stripe-index %u: rc = %d\n",
2206 lfsck_lfsck2name(com->lc_lfsck), PFID(cfid2), ost_idx2,
2207 PFID(cfid), ltd->ltd_index, PFID(lfsck_dto2fid(parent)),
2210 return rc >= 0 ? 1 : rc;
2214 * \retval +1: repaired
2215 * \retval 0: did nothing
2216 * \retval -ve: on error
2218 static int lfsck_layout_recreate_lovea(const struct lu_env *env,
2219 struct lfsck_component *com,
2220 struct lfsck_tgt_desc *ltd,
2221 struct lu_orphan_rec *rec,
2222 struct dt_object *parent,
2223 struct lu_fid *cfid,
2224 __u32 ost_idx, __u32 ea_off)
2226 struct lfsck_thread_info *info = lfsck_env_info(env);
2227 struct lu_buf *buf = &info->lti_big_buf;
2228 struct lu_fid *fid = &info->lti_fid2;
2229 struct ost_id *oi = &info->lti_oi;
2230 struct lfsck_instance *lfsck = com->lc_lfsck;
2231 struct dt_device *dt = lfsck_obj2dev(parent);
2232 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
2233 struct thandle *handle = NULL;
2235 struct lov_mds_md_v1 *lmm;
2236 struct lov_ost_data_v1 *objs;
2237 struct lustre_handle lh = { 0 };
2244 bool locked = false;
2247 rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
2248 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR,
2251 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant failed to recreate "
2252 "LOV EA for "DFID": parent "DFID", OST-index %u, "
2253 "stripe-index %u: rc = %d\n",
2254 lfsck_lfsck2name(lfsck), PFID(cfid),
2255 PFID(lfsck_dto2fid(parent)), ost_idx, ea_off, rc);
2262 dt_write_unlock(env, parent);
2266 if (handle != NULL) {
2267 dt_trans_stop(env, dt, handle);
2272 GOTO(unlock_layout, rc);
2275 if (buf->lb_len < lovea_size) {
2276 lu_buf_realloc(buf, lovea_size);
2277 if (buf->lb_buf == NULL)
2278 GOTO(unlock_layout, rc = -ENOMEM);
2281 if (!(bk->lb_param & LPF_DRYRUN)) {
2282 handle = dt_trans_create(env, dt);
2284 GOTO(unlock_layout, rc = PTR_ERR(handle));
2286 rc = dt_declare_xattr_set(env, parent, buf, XATTR_NAME_LOV,
2291 rc = dt_trans_start_local(env, dt, handle);
2296 dt_write_lock(env, parent, 0);
2298 rc = dt_xattr_get(env, parent, buf, XATTR_NAME_LOV, BYPASS_CAPA);
2299 if (rc == -ERANGE) {
2300 rc = dt_xattr_get(env, parent, &LU_BUF_NULL, XATTR_NAME_LOV,
2304 } else if (rc == -ENODATA || rc == 0) {
2305 lovea_size = lov_mds_md_size(ea_off + 1, LOV_MAGIC_V1);
2306 /* If the declared is not big enough, re-try. */
2307 if (buf->lb_len < lovea_size) {
2311 fl = LU_XATTR_CREATE;
2312 } else if (rc < 0) {
2313 GOTO(unlock_parent, rc);
2314 } else if (unlikely(buf->lb_len == 0)) {
2317 fl = LU_XATTR_REPLACE;
2321 if (fl == LU_XATTR_CREATE) {
2322 if (bk->lb_param & LPF_DRYRUN)
2323 GOTO(unlock_parent, rc = 1);
2325 LASSERT(buf->lb_len >= lovea_size);
2327 rc = lfsck_layout_extend_lovea(env, lfsck, handle, parent, cfid,
2328 buf, fl, ost_idx, ea_off, false);
2330 GOTO(unlock_parent, rc);
2334 rc1 = lfsck_layout_verify_header(lmm);
2336 /* If the LOV EA crashed, the rebuild it. */
2337 if (rc1 == -EINVAL) {
2338 if (bk->lb_param & LPF_DRYRUN)
2339 GOTO(unlock_parent, rc = 1);
2341 LASSERT(buf->lb_len >= lovea_size);
2343 rc = lfsck_layout_extend_lovea(env, lfsck, handle, parent, cfid,
2344 buf, fl, ost_idx, ea_off, true);
2346 GOTO(unlock_parent, rc);
2349 /* For other unknown magic/pattern, keep the current LOV EA. */
2351 GOTO(unlock_parent, rc = rc1);
2353 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
2354 * been verified in lfsck_layout_verify_header() already. If some
2355 * new magic introduced in the future, then layout LFSCK needs to
2356 * be updated also. */
2357 magic = le32_to_cpu(lmm->lmm_magic);
2358 if (magic == LOV_MAGIC_V1) {
2359 objs = &lmm->lmm_objects[0];
2361 LASSERT(magic == LOV_MAGIC_V3);
2362 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
2365 count = le16_to_cpu(lmm->lmm_stripe_count);
2367 GOTO(unlock_parent, rc = -EINVAL);
2370 /* Exceed the current end of MDT-object layout EA. Then extend it. */
2371 if (count <= ea_off) {
2372 if (bk->lb_param & LPF_DRYRUN)
2373 GOTO(unlock_parent, rc = 1);
2375 lovea_size = lov_mds_md_size(ea_off + 1, magic);
2376 /* If the declared is not big enough, re-try. */
2377 if (buf->lb_len < lovea_size) {
2382 rc = lfsck_layout_extend_lovea(env, lfsck, handle, parent, cfid,
2383 buf, fl, ost_idx, ea_off, false);
2385 GOTO(unlock_parent, rc);
2388 LASSERTF(rc > 0, "invalid rc = %d\n", rc);
2390 for (i = 0; i < count; i++, objs++) {
2391 /* The MDT-object was created via lfsck_layout_recover_create()
2392 * by others before, and we fill the dummy layout EA. */
2393 if (lovea_slot_is_dummy(objs)) {
2397 if (bk->lb_param & LPF_DRYRUN)
2398 GOTO(unlock_parent, rc = 1);
2400 lmm->lmm_layout_gen =
2401 cpu_to_le16(le16_to_cpu(lmm->lmm_layout_gen) + 1);
2402 rc = lfsck_layout_refill_lovea(env, handle, parent,
2403 cfid, buf, objs, fl,
2406 CDEBUG(D_LFSCK, "%s layout LFSCK assistant fill "
2407 "dummy layout slot for "DFID": parent "DFID
2408 ", OST-index %u, stripe-index %u: rc = %d\n",
2409 lfsck_lfsck2name(lfsck), PFID(cfid),
2410 PFID(lfsck_dto2fid(parent)), ost_idx, i, rc);
2412 GOTO(unlock_parent, rc);
2415 ostid_le_to_cpu(&objs->l_ost_oi, oi);
2416 rc = ostid_to_fid(fid, oi, le32_to_cpu(objs->l_ost_idx));
2418 CDEBUG(D_LFSCK, "%s: the parent "DFID" contains "
2419 "invalid layout EA at the slot %d, index %u\n",
2420 lfsck_lfsck2name(lfsck),
2421 PFID(lfsck_dto2fid(parent)), i,
2422 le32_to_cpu(objs->l_ost_idx));
2424 GOTO(unlock_parent, rc);
2427 /* It should be rare case, the slot is there, but the LFSCK
2428 * does not handle it during the first-phase cycle scanning. */
2429 if (unlikely(lu_fid_eq(fid, cfid))) {
2431 GOTO(unlock_parent, rc = 0);
2433 /* Rare case that the OST-object index
2434 * does not match the parent MDT-object
2435 * layout EA. We trust the later one. */
2436 if (bk->lb_param & LPF_DRYRUN)
2437 GOTO(unlock_parent, rc = 1);
2439 dt_write_unlock(env, parent);
2441 dt_trans_stop(env, dt, handle);
2442 lfsck_ibits_unlock(&lh, LCK_EX);
2443 rc = lfsck_layout_update_pfid(env, com, parent,
2444 cfid, ltd->ltd_tgt, i);
2446 CDEBUG(D_LFSCK, "%s layout LFSCK assistant "
2447 "updated OST-object's pfid for "DFID
2448 ": parent "DFID", OST-index %u, "
2449 "stripe-index %u: rc = %d\n",
2450 lfsck_lfsck2name(lfsck), PFID(cfid),
2451 PFID(lfsck_dto2fid(parent)),
2452 ltd->ltd_index, i, rc);
2459 /* The MDT-object exists, but related layout EA slot is occupied
2461 if (bk->lb_param & LPF_DRYRUN)
2462 GOTO(unlock_parent, rc = 1);
2464 dt_write_unlock(env, parent);
2466 dt_trans_stop(env, dt, handle);
2467 lfsck_ibits_unlock(&lh, LCK_EX);
2468 if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V1)
2469 objs = &lmm->lmm_objects[ea_off];
2471 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[ea_off];
2472 rc = lfsck_layout_conflict_create(env, com, ltd, rec, parent, cfid,
2479 dt_write_unlock(env, parent);
2483 dt_trans_stop(env, dt, handle);
2486 lfsck_ibits_unlock(&lh, LCK_EX);
2491 static int lfsck_layout_scan_orphan_one(const struct lu_env *env,
2492 struct lfsck_component *com,
2493 struct lfsck_tgt_desc *ltd,
2494 struct lu_orphan_rec *rec,
2495 struct lu_fid *cfid)
2497 struct lfsck_layout *lo = com->lc_file_ram;
2498 struct lu_fid *pfid = &rec->lor_fid;
2499 struct dt_object *parent = NULL;
2500 __u32 ea_off = pfid->f_stripe_idx;
2504 if (!fid_is_sane(cfid))
2505 GOTO(out, rc = -EINVAL);
2507 if (fid_is_zero(pfid)) {
2508 rc = lfsck_layout_recreate_parent(env, com, ltd, rec, cfid,
2514 if (!fid_is_sane(pfid))
2515 GOTO(out, rc = -EINVAL);
2517 parent = lfsck_object_find_by_dev(env, com->lc_lfsck->li_bottom, pfid);
2519 GOTO(out, rc = PTR_ERR(parent));
2521 if (unlikely(dt_object_remote(parent) != 0))
2522 GOTO(put, rc = -EXDEV);
2524 if (dt_object_exists(parent) == 0) {
2525 lfsck_object_put(env, parent);
2526 rc = lfsck_layout_recreate_parent(env, com, ltd, rec, cfid,
2531 if (!S_ISREG(lu_object_attr(&parent->do_lu)))
2532 GOTO(put, rc = -EISDIR);
2534 rc = lfsck_layout_recreate_lovea(env, com, ltd, rec, parent, cfid,
2535 ltd->ltd_index, ea_off);
2541 lfsck_object_put(env, parent);
2543 /* The layout EA is changed, need to be reloaded next time. */
2544 lu_object_put_nocache(env, &parent->do_lu);
2547 down_write(&com->lc_sem);
2548 com->lc_new_scanned++;
2549 com->lc_new_checked++;
2551 lo->ll_objs_repaired[LLIT_ORPHAN - 1]++;
2553 } else if (rc < 0) {
2554 lo->ll_objs_failed_phase2++;
2556 up_write(&com->lc_sem);
2561 static int lfsck_layout_scan_orphan(const struct lu_env *env,
2562 struct lfsck_component *com,
2563 struct lfsck_tgt_desc *ltd)
2565 struct lfsck_assistant_data *lad = com->lc_data;
2566 struct lfsck_instance *lfsck = com->lc_lfsck;
2567 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
2568 struct lfsck_thread_info *info = lfsck_env_info(env);
2569 struct ost_id *oi = &info->lti_oi;
2570 struct lu_fid *fid = &info->lti_fid;
2571 struct dt_object *obj;
2572 const struct dt_it_ops *iops;
2577 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant starts the orphan "
2578 "scanning for OST%04x\n",
2579 lfsck_lfsck2name(lfsck), ltd->ltd_index);
2581 if (cfs_bitmap_check(lad->lad_bitmap, ltd->ltd_index)) {
2582 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant skip the orphan "
2583 "scanning for OST%04x\n",
2584 lfsck_lfsck2name(lfsck), ltd->ltd_index);
2589 ostid_set_seq(oi, FID_SEQ_IDIF);
2590 ostid_set_id(oi, 0);
2591 rc = ostid_to_fid(fid, oi, ltd->ltd_index);
2595 obj = lfsck_object_find_by_dev(env, ltd->ltd_tgt, fid);
2596 if (unlikely(IS_ERR(obj)))
2597 GOTO(log, rc = PTR_ERR(obj));
2599 rc = obj->do_ops->do_index_try(env, obj, &dt_lfsck_orphan_features);
2603 iops = &obj->do_index_ops->dio_it;
2604 di = iops->init(env, obj, 0, BYPASS_CAPA);
2606 GOTO(put, rc = PTR_ERR(di));
2608 rc = iops->load(env, di, 0);
2610 /* -ESRCH means that the orphan OST-objects rbtree has been
2611 * cleanup because of the OSS server restart or other errors. */
2612 lfsck_lad_set_bitmap(env, com, ltd->ltd_index);
2617 rc = iops->next(env, di);
2629 struct lu_orphan_rec *rec = &info->lti_rec;
2631 if (CFS_FAIL_TIMEOUT(OBD_FAIL_LFSCK_DELAY3, cfs_fail_val) &&
2632 unlikely(!thread_is_running(&lfsck->li_thread)))
2635 key = iops->key(env, di);
2636 com->lc_fid_latest_scanned_phase2 = *(struct lu_fid *)key;
2637 rc = iops->rec(env, di, (struct dt_rec *)rec, 0);
2639 rc = lfsck_layout_scan_orphan_one(env, com, ltd, rec,
2640 &com->lc_fid_latest_scanned_phase2);
2641 if (rc != 0 && bk->lb_param & LPF_FAILOUT)
2644 lfsck_control_speed_by_self(com);
2646 rc = iops->next(env, di);
2647 } while (rc < 0 && !(bk->lb_param & LPF_FAILOUT));
2654 iops->fini(env, di);
2656 lfsck_object_put(env, obj);
2659 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant finished the orphan "
2660 "scanning for OST%04x: rc = %d\n",
2661 lfsck_lfsck2name(lfsck), ltd->ltd_index, rc);
2663 return rc > 0 ? 0 : rc;
2666 /* For the MDT-object with dangling reference, we need to repare the
2667 * inconsistency according to the LFSCK sponsor's requirement:
2669 * 1) Keep the inconsistency there and report the inconsistency case,
2670 * then give the chance to the application to find related issues,
2671 * and the users can make the decision about how to handle it with
2672 * more human knownledge. (by default)
2674 * 2) Re-create the missing OST-object with the FID/owner information. */
2675 static int lfsck_layout_repair_dangling(const struct lu_env *env,
2676 struct lfsck_component *com,
2677 struct dt_object *parent,
2678 struct lfsck_layout_req *llr,
2679 const struct lu_attr *pla)
2681 struct lfsck_thread_info *info = lfsck_env_info(env);
2682 struct filter_fid *pfid = &info->lti_new_pfid;
2683 struct dt_object_format *dof = &info->lti_dof;
2684 struct lu_attr *cla = &info->lti_la2;
2685 struct dt_object *child = llr->llr_child;
2686 struct dt_device *dev = lfsck_obj2dev(child);
2687 const struct lu_fid *tfid = lu_object_fid(&parent->do_lu);
2688 struct thandle *handle;
2690 struct lustre_handle lh = { 0 };
2695 if (com->lc_lfsck->li_bookmark_ram.lb_param & LPF_CREATE_OSTOBJ)
2703 memset(cla, 0, sizeof(*cla));
2704 cla->la_uid = pla->la_uid;
2705 cla->la_gid = pla->la_gid;
2706 cla->la_mode = S_IFREG | 0666;
2707 cla->la_valid = LA_TYPE | LA_MODE | LA_UID | LA_GID |
2708 LA_ATIME | LA_MTIME | LA_CTIME;
2709 memset(dof, 0, sizeof(*dof));
2711 rc = lfsck_ibits_lock(env, com->lc_lfsck, parent, &lh,
2712 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR,
2717 pfid->ff_parent.f_seq = cpu_to_le64(tfid->f_seq);
2718 pfid->ff_parent.f_oid = cpu_to_le32(tfid->f_oid);
2719 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
2720 * MDT-object's FID::f_ver, instead it is the OST-object index in its
2721 * parent MDT-object's layout EA. */
2722 pfid->ff_parent.f_stripe_idx = cpu_to_le32(llr->llr_lov_idx);
2723 buf = lfsck_buf_get(env, pfid, sizeof(struct filter_fid));
2725 handle = dt_trans_create(env, dev);
2727 GOTO(unlock1, rc = PTR_ERR(handle));
2729 rc = dt_declare_create(env, child, cla, NULL, dof, handle);
2733 rc = dt_declare_xattr_set(env, child, buf, XATTR_NAME_FID,
2734 LU_XATTR_CREATE, handle);
2738 rc = dt_trans_start_local(env, dev, handle);
2742 dt_read_lock(env, parent, 0);
2743 if (unlikely(lfsck_is_dead_obj(parent)))
2744 GOTO(unlock2, rc = 1);
2746 rc = dt_create(env, child, cla, NULL, dof, handle);
2750 rc = dt_xattr_set(env, child, buf, XATTR_NAME_FID, LU_XATTR_CREATE,
2751 handle, BYPASS_CAPA);
2756 dt_read_unlock(env, parent);
2759 rc = lfsck_layout_trans_stop(env, dev, handle, rc);
2762 lfsck_ibits_unlock(&lh, LCK_EX);
2765 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant found dangling "
2766 "reference for: parent "DFID", child "DFID", OST-index %u, "
2767 "stripe-index %u, owner %u/%u. %s: rc = %d\n",
2768 lfsck_lfsck2name(com->lc_lfsck), PFID(lfsck_dto2fid(parent)),
2769 PFID(lfsck_dto2fid(child)), llr->llr_ost_idx,
2770 llr->llr_lov_idx, pla->la_uid, pla->la_gid,
2771 create ? "Create the lost OST-object as required" :
2772 "Keep the MDT-object there by default", rc);
2777 /* If the OST-object does not recognize the MDT-object as its parent, and
2778 * there is no other MDT-object claims as its parent, then just trust the
2779 * given MDT-object as its parent. So update the OST-object filter_fid. */
2780 static int lfsck_layout_repair_unmatched_pair(const struct lu_env *env,
2781 struct lfsck_component *com,
2782 struct dt_object *parent,
2783 struct lfsck_layout_req *llr,
2784 const struct lu_attr *pla)
2786 struct lfsck_thread_info *info = lfsck_env_info(env);
2787 struct filter_fid *pfid = &info->lti_new_pfid;
2788 struct lu_attr *tla = &info->lti_la3;
2789 struct dt_object *child = llr->llr_child;
2790 struct dt_device *dev = lfsck_obj2dev(child);
2791 const struct lu_fid *tfid = lu_object_fid(&parent->do_lu);
2792 struct thandle *handle;
2794 struct lustre_handle lh = { 0 };
2798 rc = lfsck_ibits_lock(env, com->lc_lfsck, parent, &lh,
2799 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR,
2804 pfid->ff_parent.f_seq = cpu_to_le64(tfid->f_seq);
2805 pfid->ff_parent.f_oid = cpu_to_le32(tfid->f_oid);
2806 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
2807 * MDT-object's FID::f_ver, instead it is the OST-object index in its
2808 * parent MDT-object's layout EA. */
2809 pfid->ff_parent.f_stripe_idx = cpu_to_le32(llr->llr_lov_idx);
2810 buf = lfsck_buf_get(env, pfid, sizeof(struct filter_fid));
2812 handle = dt_trans_create(env, dev);
2814 GOTO(unlock1, rc = PTR_ERR(handle));
2816 rc = dt_declare_xattr_set(env, child, buf, XATTR_NAME_FID, 0, handle);
2820 tla->la_valid = LA_UID | LA_GID;
2821 tla->la_uid = pla->la_uid;
2822 tla->la_gid = pla->la_gid;
2823 rc = dt_declare_attr_set(env, child, tla, handle);
2827 rc = dt_trans_start_local(env, dev, handle);
2831 dt_write_lock(env, parent, 0);
2832 if (unlikely(lfsck_is_dead_obj(parent)))
2833 GOTO(unlock2, rc = 1);
2835 rc = dt_xattr_set(env, child, buf, XATTR_NAME_FID, 0, handle,
2840 /* Get the latest parent's owner. */
2841 rc = dt_attr_get(env, parent, tla, BYPASS_CAPA);
2845 tla->la_valid = LA_UID | LA_GID;
2846 rc = dt_attr_set(env, child, tla, handle, BYPASS_CAPA);
2851 dt_write_unlock(env, parent);
2854 rc = lfsck_layout_trans_stop(env, dev, handle, rc);
2857 lfsck_ibits_unlock(&lh, LCK_EX);
2860 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant repaired unmatched "
2861 "MDT-OST pair for: parent "DFID", child "DFID", OST-index %u, "
2862 "stripe-index %u, owner %u/%u: rc = %d\n",
2863 lfsck_lfsck2name(com->lc_lfsck), PFID(lfsck_dto2fid(parent)),
2864 PFID(lfsck_dto2fid(child)), llr->llr_ost_idx, llr->llr_lov_idx,
2865 pla->la_uid, pla->la_gid, rc);
2870 /* If there are more than one MDT-objects claim as the OST-object's parent,
2871 * and the OST-object only recognizes one of them, then we need to generate
2872 * new OST-object(s) with new fid(s) for the non-recognized MDT-object(s). */
2873 static int lfsck_layout_repair_multiple_references(const struct lu_env *env,
2874 struct lfsck_component *com,
2875 struct dt_object *parent,
2876 struct lfsck_layout_req *llr,
2880 struct lfsck_thread_info *info = lfsck_env_info(env);
2881 struct dt_allocation_hint *hint = &info->lti_hint;
2882 struct dt_object_format *dof = &info->lti_dof;
2883 struct ost_id *oi = &info->lti_oi;
2884 struct lfsck_instance *lfsck = com->lc_lfsck;
2885 struct dt_device *dev = lfsck->li_bottom;
2886 struct lu_device *d =
2887 &lfsck_obj2dev(llr->llr_child)->dd_lu_dev;
2888 struct lu_object *o;
2889 struct lu_object *n;
2890 struct dt_object *child = NULL;
2891 struct thandle *handle = NULL;
2892 struct lov_mds_md_v1 *lmm;
2893 struct lov_ost_data_v1 *objs;
2894 const struct lu_fid *pfid = lfsck_dto2fid(parent);
2896 struct lustre_handle lh = { 0 };
2897 struct lu_buf ea_buf;
2903 /* We use two separated transactions to repair the inconsistency.
2905 * 1) create the child (OST-object).
2906 * 2) update the parent LOV EA according to the child's FID.
2908 * If 1) succeed, but 2) failed or aborted, then such OST-object will be
2909 * handled as orphan when the layout LFSCK run next time.
2911 * If 1) failed, but 2) succeed, then such OST-object will be re-created
2912 * as dangling referened case when the layout LFSCK run next time. */
2914 /* The 1st transaction. */
2915 o = lu_object_anon(env, d, NULL);
2917 GOTO(log, rc = PTR_ERR(o));
2919 n = lu_object_locate(o->lo_header, d->ld_type);
2920 if (unlikely(n == NULL)) {
2921 lu_object_put_nocache(env, o);
2923 GOTO(log, rc = -EINVAL);
2926 child = container_of(n, struct dt_object, do_lu);
2927 memset(hint, 0, sizeof(*hint));
2928 la->la_valid = LA_UID | LA_GID;
2929 memset(dof, 0, sizeof(*dof));
2931 handle = dt_trans_create(env, dev);
2933 GOTO(log, rc = PTR_ERR(handle));
2935 rc = dt_declare_create(env, child, la, hint, dof, handle);
2939 rc = dt_trans_start_local(env, dev, handle);
2943 rc = dt_create(env, child, la, hint, dof, handle);
2944 dt_trans_stop(env, dev, handle);
2949 rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
2950 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR,
2955 /* The 2nd transaction. */
2957 /* XXX: Generally, we should use bottom device (OSD) to update parent
2958 * LOV EA. But because the LOD-object still references the wrong
2959 * OSP-object that should be detached after the parent's LOV EA
2960 * refreshed. Unfortunately, there is no suitable API for that.
2961 * So we have to make the LOD to re-load the OSP-object(s) via
2962 * replacing the LOV EA against the LOD-object.
2964 * Once the DNE2 patches have been landed, we can replace the
2965 * LOD device with the OSD device. LU-6230. */
2967 dev = lfsck->li_next;
2968 parent = lfsck_object_locate(dev, parent);
2970 GOTO(log, rc = PTR_ERR(parent));
2972 handle = dt_trans_create(env, dev);
2974 GOTO(log, rc = PTR_ERR(handle));
2976 rc = dt_declare_xattr_set(env, parent, buf, XATTR_NAME_LOV,
2977 LU_XATTR_REPLACE, handle);
2981 rc = dt_trans_start_local(env, dev, handle);
2985 dt_write_lock(env, parent, 0);
2986 if (unlikely(lfsck_is_dead_obj(parent)))
2987 GOTO(unlock, rc = 0);
2989 rc = dt_xattr_get(env, parent, buf, XATTR_NAME_LOV, BYPASS_CAPA);
2990 if (unlikely(rc == 0 || rc == -ENODATA || rc == -ERANGE))
2991 GOTO(unlock, rc = 0);
2994 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
2995 * been verified in lfsck_layout_verify_header() already. If some
2996 * new magic introduced in the future, then layout LFSCK needs to
2997 * be updated also. */
2998 magic = le32_to_cpu(lmm->lmm_magic);
2999 if (magic == LOV_MAGIC_V1) {
3000 objs = &lmm->lmm_objects[llr->llr_lov_idx];
3002 LASSERT(magic == LOV_MAGIC_V3);
3004 &((struct lov_mds_md_v3 *)lmm)->lmm_objects[llr->llr_lov_idx];
3007 ostid_le_to_cpu(&objs->l_ost_oi, oi);
3008 index = le32_to_cpu(objs->l_ost_idx);
3009 rc = ostid_to_fid(&tfid, oi, index);
3010 /* Someone changed layout during the LFSCK, no need to repair then. */
3011 if (rc == 0 && !lu_fid_eq(&tfid, lu_object_fid(&llr->llr_child->do_lu)))
3012 GOTO(unlock, rc = 0);
3014 lmm->lmm_layout_gen = cpu_to_le16(le16_to_cpu(lmm->lmm_layout_gen) + 1);
3015 fid_to_ostid(lu_object_fid(&child->do_lu), oi);
3016 ostid_cpu_to_le(oi, &objs->l_ost_oi);
3017 objs->l_ost_gen = cpu_to_le32(0);
3018 objs->l_ost_idx = cpu_to_le32(llr->llr_ost_idx);
3019 lfsck_buf_init(&ea_buf, lmm,
3020 lov_mds_md_size(le16_to_cpu(lmm->lmm_stripe_count),
3022 rc = dt_xattr_set(env, parent, &ea_buf, XATTR_NAME_LOV,
3023 LU_XATTR_REPLACE, handle, BYPASS_CAPA);
3025 GOTO(unlock, rc = (rc == 0 ? 1 : rc));
3028 dt_write_unlock(env, parent);
3032 dt_trans_stop(env, dev, handle);
3035 lfsck_ibits_unlock(&lh, LCK_EX);
3037 lfsck_object_put(env, child);
3039 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant repaired multiple "
3040 "references for: parent "DFID", OST-index %u, stripe-index %u, "
3041 "owner %u/%u: rc = %d\n", lfsck_lfsck2name(lfsck), PFID(pfid),
3042 llr->llr_ost_idx, llr->llr_lov_idx, la->la_uid, la->la_gid, rc);
3047 /* If the MDT-object and the OST-object have different owner information,
3048 * then trust the MDT-object, because the normal chown/chgrp handle order
3049 * is from MDT to OST, and it is possible that some chown/chgrp operation
3050 * is partly done. */
3051 static int lfsck_layout_repair_owner(const struct lu_env *env,
3052 struct lfsck_component *com,
3053 struct dt_object *parent,
3054 struct lfsck_layout_req *llr,
3055 struct lu_attr *pla)
3057 struct lfsck_thread_info *info = lfsck_env_info(env);
3058 struct lu_attr *tla = &info->lti_la3;
3059 struct dt_object *child = llr->llr_child;
3060 struct dt_device *dev = lfsck_obj2dev(child);
3061 struct thandle *handle;
3065 handle = dt_trans_create(env, dev);
3067 GOTO(log, rc = PTR_ERR(handle));
3069 tla->la_uid = pla->la_uid;
3070 tla->la_gid = pla->la_gid;
3071 tla->la_valid = LA_UID | LA_GID;
3072 rc = dt_declare_attr_set(env, child, tla, handle);
3076 rc = dt_trans_start_local(env, dev, handle);
3080 /* Use the dt_object lock to serialize with destroy and attr_set. */
3081 dt_read_lock(env, parent, 0);
3082 if (unlikely(lfsck_is_dead_obj(parent)))
3083 GOTO(unlock, rc = 1);
3085 /* Get the latest parent's owner. */
3086 rc = dt_attr_get(env, parent, tla, BYPASS_CAPA);
3090 /* Some others chown/chgrp during the LFSCK, needs to do nothing. */
3091 if (unlikely(tla->la_uid != pla->la_uid ||
3092 tla->la_gid != pla->la_gid))
3093 GOTO(unlock, rc = 1);
3095 tla->la_valid = LA_UID | LA_GID;
3096 rc = dt_attr_set(env, child, tla, handle, BYPASS_CAPA);
3101 dt_read_unlock(env, parent);
3104 rc = lfsck_layout_trans_stop(env, dev, handle, rc);
3107 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant repaired inconsistent "
3108 "file owner for: parent "DFID", child "DFID", OST-index %u, "
3109 "stripe-index %u, owner %u/%u: rc = %d\n",
3110 lfsck_lfsck2name(com->lc_lfsck), PFID(lfsck_dto2fid(parent)),
3111 PFID(lfsck_dto2fid(child)), llr->llr_ost_idx, llr->llr_lov_idx,
3112 pla->la_uid, pla->la_gid, rc);
3117 /* Check whether the OST-object correctly back points to the
3118 * MDT-object (@parent) via the XATTR_NAME_FID xattr (@pfid). */
3119 static int lfsck_layout_check_parent(const struct lu_env *env,
3120 struct lfsck_component *com,
3121 struct dt_object *parent,
3122 const struct lu_fid *pfid,
3123 const struct lu_fid *cfid,
3124 const struct lu_attr *pla,
3125 const struct lu_attr *cla,
3126 struct lfsck_layout_req *llr,
3127 struct lu_buf *lov_ea, __u32 idx)
3129 struct lfsck_thread_info *info = lfsck_env_info(env);
3130 struct lu_buf *buf = &info->lti_big_buf;
3131 struct dt_object *tobj;
3132 struct lov_mds_md_v1 *lmm;
3133 struct lov_ost_data_v1 *objs;
3134 struct lustre_handle lh = { 0 };
3141 if (fid_is_zero(pfid)) {
3142 /* client never wrote. */
3143 if (cla->la_size == 0 && cla->la_blocks == 0) {
3144 if (unlikely(cla->la_uid != pla->la_uid ||
3145 cla->la_gid != pla->la_gid))
3146 RETURN (LLIT_INCONSISTENT_OWNER);
3151 RETURN(LLIT_UNMATCHED_PAIR);
3154 if (unlikely(!fid_is_sane(pfid)))
3155 RETURN(LLIT_UNMATCHED_PAIR);
3157 if (lu_fid_eq(pfid, lu_object_fid(&parent->do_lu))) {
3158 if (llr->llr_lov_idx == idx)
3161 RETURN(LLIT_UNMATCHED_PAIR);
3164 tobj = lfsck_object_find_bottom(env, com->lc_lfsck, pfid);
3166 RETURN(PTR_ERR(tobj));
3168 if (dt_object_exists(tobj) == 0 ||
3169 lfsck_is_dead_obj(tobj))
3170 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3172 if (!S_ISREG(lfsck_object_type(tobj)))
3173 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3175 /* Load the tobj's layout EA, in spite of it is a local MDT-object or
3176 * remote one on another MDT. Then check whether the given OST-object
3177 * is in such layout. If yes, it is multiple referenced, otherwise it
3178 * is unmatched referenced case. */
3179 rc = lfsck_layout_get_lovea(env, tobj, buf);
3180 if (rc == 0 || rc == -ENOENT)
3181 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3187 magic = le32_to_cpu(lmm->lmm_magic);
3188 if (magic == LOV_MAGIC_V1) {
3189 objs = &lmm->lmm_objects[0];
3191 LASSERT(magic == LOV_MAGIC_V3);
3192 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
3195 count = le16_to_cpu(lmm->lmm_stripe_count);
3196 for (i = 0; i < count; i++, objs++) {
3197 struct lu_fid *tfid = &info->lti_fid2;
3198 struct ost_id *oi = &info->lti_oi;
3201 if (lovea_slot_is_dummy(objs))
3204 ostid_le_to_cpu(&objs->l_ost_oi, oi);
3205 idx2 = le32_to_cpu(objs->l_ost_idx);
3206 rc = ostid_to_fid(tfid, oi, idx2);
3208 CDEBUG(D_LFSCK, "%s: the parent "DFID" contains "
3209 "invalid layout EA at the slot %d, index %u\n",
3210 lfsck_lfsck2name(com->lc_lfsck),
3211 PFID(pfid), i, idx2);
3213 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3216 if (lu_fid_eq(cfid, tfid)) {
3217 rc = lfsck_ibits_lock(env, com->lc_lfsck, tobj, &lh,
3218 MDS_INODELOCK_UPDATE |
3219 MDS_INODELOCK_LAYOUT |
3220 MDS_INODELOCK_XATTR,
3225 dt_read_lock(env, tobj, 0);
3227 /* For local MDT-object, re-check existence
3228 * after taken the lock. */
3229 if (!dt_object_remote(tobj)) {
3230 if (dt_object_exists(tobj) == 0 ||
3231 lfsck_is_dead_obj(tobj)) {
3232 rc = LLIT_UNMATCHED_PAIR;
3235 rc = LLIT_MULTIPLE_REFERENCED;
3241 /* For migration case, the new MDT-object and old
3242 * MDT-object may reference the same OST-object at
3243 * some migration internal time.
3245 * For remote MDT-object, the local MDT may not know
3246 * whether it has been removed or not. Try checking
3247 * for a non-existent xattr to check if this object
3248 * has been been removed or not. */
3249 rc = dt_xattr_get(env, tobj, &LU_BUF_NULL,
3250 XATTR_NAME_DUMMY, BYPASS_CAPA);
3251 if (unlikely(rc == -ENOENT || rc >= 0)) {
3252 rc = LLIT_UNMATCHED_PAIR;
3253 } else if (rc == -ENODATA) {
3255 rc = LLIT_MULTIPLE_REFERENCED;
3262 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3265 if (lustre_handle_is_used(&lh)) {
3266 dt_read_unlock(env, tobj);
3267 lfsck_ibits_unlock(&lh, LCK_EX);
3271 lfsck_object_put(env, tobj);
3276 static int lfsck_layout_assistant_handler_p1(const struct lu_env *env,
3277 struct lfsck_component *com,
3278 struct lfsck_assistant_req *lar)
3280 struct lfsck_layout_req *llr =
3281 container_of0(lar, struct lfsck_layout_req, llr_lar);
3282 struct lfsck_layout *lo = com->lc_file_ram;
3283 struct lfsck_thread_info *info = lfsck_env_info(env);
3284 struct filter_fid_old *pea = &info->lti_old_pfid;
3285 struct lu_fid *pfid = &info->lti_fid;
3286 struct lu_buf buf = { NULL };
3287 struct dt_object *parent;
3288 struct dt_object *child = llr->llr_child;
3289 struct lu_attr *pla = &info->lti_la;
3290 struct lu_attr *cla = &info->lti_la2;
3291 struct lfsck_instance *lfsck = com->lc_lfsck;
3292 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
3293 enum lfsck_layout_inconsistency_type type = LLIT_NONE;
3298 parent = lfsck_object_find_bottom(env, lfsck, &lar->lar_fid);
3300 RETURN(PTR_ERR(parent));
3302 if (unlikely(lfsck_is_dead_obj(parent)))
3303 GOTO(put_parent, rc = 0);
3305 rc = dt_attr_get(env, parent, pla, BYPASS_CAPA);
3309 rc = dt_attr_get(env, child, cla, BYPASS_CAPA);
3310 if (rc == -ENOENT) {
3311 if (unlikely(lfsck_is_dead_obj(parent)))
3312 GOTO(put_parent, rc = 0);
3314 type = LLIT_DANGLING;
3321 lfsck_buf_init(&buf, pea, sizeof(struct filter_fid_old));
3322 rc = dt_xattr_get(env, child, &buf, XATTR_NAME_FID, BYPASS_CAPA);
3323 if (unlikely(rc >= 0 && rc != sizeof(struct filter_fid_old) &&
3324 rc != sizeof(struct filter_fid))) {
3325 type = LLIT_UNMATCHED_PAIR;
3329 if (rc < 0 && rc != -ENODATA)
3332 if (rc == -ENODATA) {
3335 fid_le_to_cpu(pfid, &pea->ff_parent);
3336 /* Currently, the filter_fid::ff_parent::f_ver is not the
3337 * real parent MDT-object's FID::f_ver, instead it is the
3338 * OST-object index in its parent MDT-object's layout EA. */
3339 idx = pfid->f_stripe_idx;
3343 rc = lfsck_layout_check_parent(env, com, parent, pfid,
3344 lu_object_fid(&child->do_lu),
3345 pla, cla, llr, &buf, idx);
3354 if (unlikely(cla->la_uid != pla->la_uid ||
3355 cla->la_gid != pla->la_gid)) {
3356 type = LLIT_INCONSISTENT_OWNER;
3361 if (bk->lb_param & LPF_DRYRUN) {
3362 if (type != LLIT_NONE)
3370 rc = lfsck_layout_repair_dangling(env, com, parent, llr, pla);
3372 case LLIT_UNMATCHED_PAIR:
3373 rc = lfsck_layout_repair_unmatched_pair(env, com, parent,
3376 case LLIT_MULTIPLE_REFERENCED:
3377 rc = lfsck_layout_repair_multiple_references(env, com, parent,
3380 case LLIT_INCONSISTENT_OWNER:
3381 rc = lfsck_layout_repair_owner(env, com, parent, llr, pla);
3391 down_write(&com->lc_sem);
3393 struct lfsck_assistant_data *lad = com->lc_data;
3395 if (unlikely(lad->lad_exit)) {
3397 } else if (rc == -ENOTCONN || rc == -ESHUTDOWN ||
3398 rc == -ETIMEDOUT || rc == -EHOSTDOWN ||
3399 rc == -EHOSTUNREACH) {
3400 /* If cannot touch the target server,
3401 * mark the LFSCK as INCOMPLETE. */
3402 CDEBUG(D_LFSCK, "%s: layout LFSCK assistant fail to "
3403 "talk with OST %x: rc = %d\n",
3404 lfsck_lfsck2name(lfsck), llr->llr_ost_idx, rc);
3405 lfsck_lad_set_bitmap(env, com, llr->llr_ost_idx);
3406 lo->ll_objs_skipped++;
3409 lfsck_layout_record_failure(env, lfsck, lo);
3411 } else if (rc > 0) {
3412 LASSERTF(type > LLIT_NONE && type <= LLIT_MAX,
3413 "unknown type = %d\n", type);
3415 lo->ll_objs_repaired[type - 1]++;
3416 if (bk->lb_param & LPF_DRYRUN &&
3417 unlikely(lo->ll_pos_first_inconsistent == 0))
3418 lo->ll_pos_first_inconsistent =
3419 lfsck->li_obj_oit->do_index_ops->dio_it.store(env,
3422 up_write(&com->lc_sem);
3425 lfsck_object_put(env, parent);
3430 static int lfsck_layout_assistant_handler_p2(const struct lu_env *env,
3431 struct lfsck_component *com)
3433 struct lfsck_assistant_data *lad = com->lc_data;
3434 struct lfsck_instance *lfsck = com->lc_lfsck;
3435 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
3436 struct lfsck_tgt_descs *ltds = &lfsck->li_ost_descs;
3437 struct lfsck_tgt_desc *ltd;
3441 CDEBUG(D_LFSCK, "%s: layout LFSCK phase2 scan start\n",
3442 lfsck_lfsck2name(lfsck));
3444 spin_lock(<ds->ltd_lock);
3445 while (!list_empty(&lad->lad_ost_phase2_list)) {
3446 ltd = list_entry(lad->lad_ost_phase2_list.next,
3447 struct lfsck_tgt_desc,
3448 ltd_layout_phase_list);
3449 list_del_init(<d->ltd_layout_phase_list);
3450 if (bk->lb_param & LPF_ALL_TGT) {
3451 spin_unlock(<ds->ltd_lock);
3452 rc = lfsck_layout_scan_orphan(env, com, ltd);
3453 if (rc != 0 && bk->lb_param & LPF_FAILOUT)
3456 if (unlikely(lad->lad_exit ||
3457 !thread_is_running(&lfsck->li_thread)))
3459 spin_lock(<ds->ltd_lock);
3463 if (list_empty(&lad->lad_ost_phase1_list))
3467 spin_unlock(<ds->ltd_lock);
3469 CDEBUG(D_LFSCK, "%s: layout LFSCK phase2 scan stop: rc = %d\n",
3470 lfsck_lfsck2name(lfsck), rc);
3476 lfsck_layout_slave_async_interpret(const struct lu_env *env,
3477 struct ptlrpc_request *req,
3480 struct lfsck_layout_slave_async_args *llsaa = args;
3481 struct obd_export *exp = llsaa->llsaa_exp;
3482 struct lfsck_component *com = llsaa->llsaa_com;
3483 struct lfsck_layout_slave_target *llst = llsaa->llsaa_llst;
3484 struct lfsck_layout_slave_data *llsd = com->lc_data;
3485 struct lfsck_reply *lr = NULL;
3489 /* It is quite probably caused by target crash,
3490 * to make the LFSCK can go ahead, assume that
3491 * the target finished the LFSCK prcoessing. */
3494 lr = req_capsule_server_get(&req->rq_pill, &RMF_LFSCK_REPLY);
3495 if (lr->lr_status != LS_SCANNING_PHASE1 &&
3496 lr->lr_status != LS_SCANNING_PHASE2)
3501 CDEBUG(D_LFSCK, "%s: layout LFSCK slave gets the MDT %x "
3502 "status %d\n", lfsck_lfsck2name(com->lc_lfsck),
3503 llst->llst_index, lr != NULL ? lr->lr_status : rc);
3505 lfsck_layout_llst_del(llsd, llst);
3508 lfsck_layout_llst_put(llst);
3509 lfsck_component_put(env, com);
3510 class_export_put(exp);
3515 static int lfsck_layout_async_query(const struct lu_env *env,
3516 struct lfsck_component *com,
3517 struct obd_export *exp,
3518 struct lfsck_layout_slave_target *llst,
3519 struct lfsck_request *lr,
3520 struct ptlrpc_request_set *set)
3522 struct lfsck_layout_slave_async_args *llsaa;
3523 struct ptlrpc_request *req;
3524 struct lfsck_request *tmp;
3528 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LFSCK_QUERY);
3532 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_QUERY);
3534 ptlrpc_request_free(req);
3538 tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
3540 ptlrpc_request_set_replen(req);
3542 llsaa = ptlrpc_req_async_args(req);
3543 llsaa->llsaa_exp = exp;
3544 llsaa->llsaa_com = lfsck_component_get(com);
3545 llsaa->llsaa_llst = llst;
3546 req->rq_interpret_reply = lfsck_layout_slave_async_interpret;
3547 ptlrpc_set_add_req(set, req);
3552 static int lfsck_layout_async_notify(const struct lu_env *env,
3553 struct obd_export *exp,
3554 struct lfsck_request *lr,
3555 struct ptlrpc_request_set *set)
3557 struct ptlrpc_request *req;
3558 struct lfsck_request *tmp;
3562 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LFSCK_NOTIFY);
3566 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_NOTIFY);
3568 ptlrpc_request_free(req);
3572 tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
3574 ptlrpc_request_set_replen(req);
3575 ptlrpc_set_add_req(set, req);
3581 lfsck_layout_slave_query_master(const struct lu_env *env,
3582 struct lfsck_component *com)
3584 struct lfsck_request *lr = &lfsck_env_info(env)->lti_lr;
3585 struct lfsck_instance *lfsck = com->lc_lfsck;
3586 struct lfsck_layout_slave_data *llsd = com->lc_data;
3587 struct lfsck_layout_slave_target *llst;
3588 struct obd_export *exp;
3589 struct ptlrpc_request_set *set;
3594 set = ptlrpc_prep_set();
3596 GOTO(log, rc = -ENOMEM);
3598 memset(lr, 0, sizeof(*lr));
3599 lr->lr_event = LE_QUERY;
3600 lr->lr_active = LFSCK_TYPE_LAYOUT;
3602 llsd->llsd_touch_gen++;
3603 spin_lock(&llsd->llsd_lock);
3604 while (!list_empty(&llsd->llsd_master_list)) {
3605 llst = list_entry(llsd->llsd_master_list.next,
3606 struct lfsck_layout_slave_target,
3608 if (llst->llst_gen == llsd->llsd_touch_gen)
3611 llst->llst_gen = llsd->llsd_touch_gen;
3612 list_move_tail(&llst->llst_list,
3613 &llsd->llsd_master_list);
3614 atomic_inc(&llst->llst_ref);
3615 spin_unlock(&llsd->llsd_lock);
3617 exp = lustre_find_lwp_by_index(lfsck->li_obd->obd_name,
3620 lfsck_layout_llst_del(llsd, llst);
3621 lfsck_layout_llst_put(llst);
3622 spin_lock(&llsd->llsd_lock);
3626 rc = lfsck_layout_async_query(env, com, exp, llst, lr, set);
3628 CDEBUG(D_LFSCK, "%s: layout LFSCK slave fail to "
3629 "query %s for layout: rc = %d\n",
3630 lfsck_lfsck2name(lfsck),
3631 exp->exp_obd->obd_name, rc);
3634 lfsck_layout_llst_put(llst);
3635 class_export_put(exp);
3637 spin_lock(&llsd->llsd_lock);
3639 spin_unlock(&llsd->llsd_lock);
3641 rc = ptlrpc_set_wait(set);
3642 ptlrpc_set_destroy(set);
3644 GOTO(log, rc = (rc1 != 0 ? rc1 : rc));
3647 CDEBUG(D_LFSCK, "%s: layout LFSCK slave queries master: rc = %d\n",
3648 lfsck_lfsck2name(com->lc_lfsck), rc);
3654 lfsck_layout_slave_notify_master(const struct lu_env *env,
3655 struct lfsck_component *com,
3656 enum lfsck_events event, int result)
3658 struct lfsck_layout *lo = com->lc_file_ram;
3659 struct lfsck_instance *lfsck = com->lc_lfsck;
3660 struct lfsck_layout_slave_data *llsd = com->lc_data;
3661 struct lfsck_request *lr = &lfsck_env_info(env)->lti_lr;
3662 struct lfsck_layout_slave_target *llst;
3663 struct obd_export *exp;
3664 struct ptlrpc_request_set *set;
3668 CDEBUG(D_LFSCK, "%s: layout LFSCK slave notifies master\n",
3669 lfsck_lfsck2name(com->lc_lfsck));
3671 set = ptlrpc_prep_set();
3675 memset(lr, 0, sizeof(*lr));
3676 lr->lr_event = event;
3677 lr->lr_flags = LEF_FROM_OST;
3678 lr->lr_status = result;
3679 lr->lr_index = lfsck_dev_idx(lfsck);
3680 lr->lr_active = LFSCK_TYPE_LAYOUT;
3681 lr->lr_flags2 = lo->ll_flags;
3682 llsd->llsd_touch_gen++;
3683 spin_lock(&llsd->llsd_lock);
3684 while (!list_empty(&llsd->llsd_master_list)) {
3685 llst = list_entry(llsd->llsd_master_list.next,
3686 struct lfsck_layout_slave_target,
3688 if (llst->llst_gen == llsd->llsd_touch_gen)
3691 llst->llst_gen = llsd->llsd_touch_gen;
3692 list_move_tail(&llst->llst_list,
3693 &llsd->llsd_master_list);
3694 atomic_inc(&llst->llst_ref);
3695 spin_unlock(&llsd->llsd_lock);
3697 exp = lustre_find_lwp_by_index(lfsck->li_obd->obd_name,
3700 lfsck_layout_llst_del(llsd, llst);
3701 lfsck_layout_llst_put(llst);
3702 spin_lock(&llsd->llsd_lock);
3706 rc = lfsck_layout_async_notify(env, exp, lr, set);
3708 CDEBUG(D_LFSCK, "%s: layout LFSCK slave fail to "
3709 "notify %s for layout: rc = %d\n",
3710 lfsck_lfsck2name(lfsck),
3711 exp->exp_obd->obd_name, rc);
3713 lfsck_layout_llst_put(llst);
3714 class_export_put(exp);
3715 spin_lock(&llsd->llsd_lock);
3717 spin_unlock(&llsd->llsd_lock);
3719 ptlrpc_set_wait(set);
3720 ptlrpc_set_destroy(set);
3726 * \ret -ENODATA: unrecognized stripe
3727 * \ret = 0 : recognized stripe
3728 * \ret < 0 : other failures
3730 static int lfsck_layout_master_check_pairs(const struct lu_env *env,
3731 struct lfsck_component *com,
3732 struct lu_fid *cfid,
3733 struct lu_fid *pfid)
3735 struct lfsck_thread_info *info = lfsck_env_info(env);
3736 struct lu_buf *buf = &info->lti_big_buf;
3737 struct ost_id *oi = &info->lti_oi;
3738 struct dt_object *obj;
3739 struct lov_mds_md_v1 *lmm;
3740 struct lov_ost_data_v1 *objs;
3741 __u32 idx = pfid->f_stripe_idx;
3749 obj = lfsck_object_find_bottom(env, com->lc_lfsck, pfid);
3751 RETURN(PTR_ERR(obj));
3753 dt_read_lock(env, obj, 0);
3754 if (unlikely(dt_object_exists(obj) == 0 ||
3755 lfsck_is_dead_obj(obj)))
3756 GOTO(unlock, rc = -ENOENT);
3758 if (!S_ISREG(lfsck_object_type(obj)))
3759 GOTO(unlock, rc = -ENODATA);
3761 rc = lfsck_layout_get_lovea(env, obj, buf);
3766 GOTO(unlock, rc = -ENODATA);
3769 rc = lfsck_layout_verify_header(lmm);
3773 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
3774 * been verified in lfsck_layout_verify_header() already. If some
3775 * new magic introduced in the future, then layout LFSCK needs to
3776 * be updated also. */
3777 magic = le32_to_cpu(lmm->lmm_magic);
3778 if (magic == LOV_MAGIC_V1) {
3779 objs = &lmm->lmm_objects[0];
3781 LASSERT(magic == LOV_MAGIC_V3);
3782 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
3785 fid_to_ostid(cfid, oi);
3786 count = le16_to_cpu(lmm->lmm_stripe_count);
3787 for (i = 0; i < count; i++, objs++) {
3790 ostid_le_to_cpu(&objs->l_ost_oi, &oi2);
3791 if (memcmp(oi, &oi2, sizeof(*oi)) == 0)
3792 GOTO(unlock, rc = (i != idx ? -ENODATA : 0));
3795 GOTO(unlock, rc = -ENODATA);
3798 dt_read_unlock(env, obj);
3799 lfsck_object_put(env, obj);
3805 * The LFSCK-on-OST will ask the LFSCK-on-MDT to check whether the given
3806 * MDT-object/OST-object pairs match or not to aviod transfer MDT-object
3807 * layout EA from MDT to OST. On one hand, the OST no need to understand
3808 * the layout EA structure; on the other hand, it may cause trouble when
3809 * transfer large layout EA from MDT to OST via normal OUT RPC.
3811 * \ret > 0: unrecognized stripe
3812 * \ret = 0: recognized stripe
3813 * \ret < 0: other failures
3815 static int lfsck_layout_slave_check_pairs(const struct lu_env *env,
3816 struct lfsck_component *com,
3817 struct lu_fid *cfid,
3818 struct lu_fid *pfid)
3820 struct lfsck_instance *lfsck = com->lc_lfsck;
3821 struct obd_device *obd = lfsck->li_obd;
3822 struct seq_server_site *ss = lfsck_dev_site(lfsck);
3823 struct obd_export *exp = NULL;
3824 struct ptlrpc_request *req = NULL;
3825 struct lfsck_request *lr;
3826 struct lu_seq_range *range = &lfsck_env_info(env)->lti_range;
3830 if (unlikely(fid_is_idif(pfid)))
3833 fld_range_set_any(range);
3834 rc = fld_server_lookup(env, ss->ss_server_fld, fid_seq(pfid), range);
3836 RETURN(rc == -ENOENT ? 1 : rc);
3838 if (unlikely(!fld_range_is_mdt(range)))
3841 exp = lustre_find_lwp_by_index(obd->obd_name, range->lsr_index);
3842 if (unlikely(exp == NULL))
3845 if (!(exp_connect_flags(exp) & OBD_CONNECT_LFSCK))
3846 GOTO(out, rc = -EOPNOTSUPP);
3848 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LFSCK_NOTIFY);
3850 GOTO(out, rc = -ENOMEM);
3852 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_NOTIFY);
3854 ptlrpc_request_free(req);
3859 lr = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
3860 memset(lr, 0, sizeof(*lr));
3861 lr->lr_event = LE_PAIRS_VERIFY;
3862 lr->lr_active = LFSCK_TYPE_LAYOUT;
3863 lr->lr_fid = *cfid; /* OST-object itself FID. */
3864 lr->lr_fid2 = *pfid; /* The claimed parent FID. */
3866 ptlrpc_request_set_replen(req);
3867 rc = ptlrpc_queue_wait(req);
3868 ptlrpc_req_finished(req);
3870 if (rc == -ENOENT || rc == -ENODATA)
3877 class_export_put(exp);
3882 static int lfsck_layout_slave_repair_pfid(const struct lu_env *env,
3883 struct lfsck_component *com,
3884 struct lfsck_request *lr)
3886 struct dt_object *obj;
3890 obj = lfsck_object_find_bottom(env, com->lc_lfsck, &lr->lr_fid);
3892 GOTO(log, rc = PTR_ERR(obj));
3894 dt_write_lock(env, obj, 0);
3895 if (unlikely(dt_object_exists(obj) == 0 ||
3896 lfsck_is_dead_obj(obj)))
3897 GOTO(unlock, rc = 0);
3899 rc = __lfsck_layout_update_pfid(env, obj, &lr->lr_fid2,
3905 dt_write_unlock(env, obj);
3906 lfsck_object_put(env, obj);
3909 CDEBUG(D_LFSCK, "%s: layout LFSCK slave repaired pfid for "DFID
3910 ", parent "DFID": rc = %d\n", lfsck_lfsck2name(com->lc_lfsck),
3911 PFID(&lr->lr_fid), PFID(&lr->lr_fid2), rc);
3918 static void lfsck_layout_slave_quit(const struct lu_env *env,
3919 struct lfsck_component *com);
3921 static int lfsck_layout_reset(const struct lu_env *env,
3922 struct lfsck_component *com, bool init)
3924 struct lfsck_layout *lo = com->lc_file_ram;
3927 down_write(&com->lc_sem);
3929 memset(lo, 0, com->lc_file_size);
3931 __u32 count = lo->ll_success_count;
3932 __u64 last_time = lo->ll_time_last_complete;
3934 memset(lo, 0, com->lc_file_size);
3935 lo->ll_success_count = count;
3936 lo->ll_time_last_complete = last_time;
3939 lo->ll_magic = LFSCK_LAYOUT_MAGIC;
3940 lo->ll_status = LS_INIT;
3942 if (com->lc_lfsck->li_master) {
3943 struct lfsck_assistant_data *lad = com->lc_data;
3945 lad->lad_incomplete = 0;
3946 CFS_RESET_BITMAP(lad->lad_bitmap);
3949 rc = lfsck_layout_store(env, com);
3950 up_write(&com->lc_sem);
3952 CDEBUG(D_LFSCK, "%s: layout LFSCK reset: rc = %d\n",
3953 lfsck_lfsck2name(com->lc_lfsck), rc);
3958 static void lfsck_layout_fail(const struct lu_env *env,
3959 struct lfsck_component *com, bool new_checked)
3961 struct lfsck_layout *lo = com->lc_file_ram;
3963 down_write(&com->lc_sem);
3965 com->lc_new_checked++;
3966 lfsck_layout_record_failure(env, com->lc_lfsck, lo);
3967 up_write(&com->lc_sem);
3970 static int lfsck_layout_master_checkpoint(const struct lu_env *env,
3971 struct lfsck_component *com, bool init)
3973 struct lfsck_instance *lfsck = com->lc_lfsck;
3974 struct lfsck_layout *lo = com->lc_file_ram;
3978 rc = lfsck_checkpoint_generic(env, com);
3980 return rc > 0 ? 0 : rc;
3983 down_write(&com->lc_sem);
3985 lo->ll_pos_latest_start =
3986 lfsck->li_pos_checkpoint.lp_oit_cookie;
3988 lo->ll_pos_last_checkpoint =
3989 lfsck->li_pos_checkpoint.lp_oit_cookie;
3990 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
3991 HALF_SEC - lfsck->li_time_last_checkpoint);
3992 lo->ll_time_last_checkpoint = cfs_time_current_sec();
3993 lo->ll_objs_checked_phase1 += com->lc_new_checked;
3994 com->lc_new_checked = 0;
3997 rc = lfsck_layout_store(env, com);
3998 up_write(&com->lc_sem);
4000 CDEBUG(D_LFSCK, "%s: layout LFSCK master checkpoint at the pos ["
4001 LPU64"]: rc = %d\n", lfsck_lfsck2name(lfsck),
4002 lfsck->li_pos_current.lp_oit_cookie, rc);
4007 static int lfsck_layout_slave_checkpoint(const struct lu_env *env,
4008 struct lfsck_component *com, bool init)
4010 struct lfsck_instance *lfsck = com->lc_lfsck;
4011 struct lfsck_layout *lo = com->lc_file_ram;
4014 if (com->lc_new_checked == 0 && !init)
4017 down_write(&com->lc_sem);
4019 lo->ll_pos_latest_start =
4020 lfsck->li_pos_checkpoint.lp_oit_cookie;
4022 lo->ll_pos_last_checkpoint =
4023 lfsck->li_pos_checkpoint.lp_oit_cookie;
4024 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
4025 HALF_SEC - lfsck->li_time_last_checkpoint);
4026 lo->ll_time_last_checkpoint = cfs_time_current_sec();
4027 lo->ll_objs_checked_phase1 += com->lc_new_checked;
4028 com->lc_new_checked = 0;
4031 rc = lfsck_layout_store(env, com);
4032 up_write(&com->lc_sem);
4034 CDEBUG(D_LFSCK, "%s: layout LFSCK slave checkpoint at the pos ["
4035 LPU64"]: rc = %d\n", lfsck_lfsck2name(lfsck),
4036 lfsck->li_pos_current.lp_oit_cookie, rc);
4041 static int lfsck_layout_prep(const struct lu_env *env,
4042 struct lfsck_component *com,
4043 struct lfsck_start *start)
4045 struct lfsck_instance *lfsck = com->lc_lfsck;
4046 struct lfsck_layout *lo = com->lc_file_ram;
4047 struct lfsck_position *pos = &com->lc_pos_start;
4049 fid_zero(&pos->lp_dir_parent);
4050 pos->lp_dir_cookie = 0;
4051 if (lo->ll_status == LS_COMPLETED ||
4052 lo->ll_status == LS_PARTIAL ||
4053 /* To handle orphan, must scan from the beginning. */
4054 (start != NULL && start->ls_flags & LPF_OST_ORPHAN)) {
4057 rc = lfsck_layout_reset(env, com, false);
4059 rc = lfsck_set_param(env, lfsck, start, true);
4062 CDEBUG(D_LFSCK, "%s: layout LFSCK prep failed: "
4063 "rc = %d\n", lfsck_lfsck2name(lfsck), rc);
4069 down_write(&com->lc_sem);
4070 lo->ll_time_latest_start = cfs_time_current_sec();
4071 spin_lock(&lfsck->li_lock);
4072 if (lo->ll_flags & LF_SCANNED_ONCE) {
4073 if (!lfsck->li_drop_dryrun ||
4074 lo->ll_pos_first_inconsistent == 0) {
4075 lo->ll_status = LS_SCANNING_PHASE2;
4076 list_move_tail(&com->lc_link,
4077 &lfsck->li_list_double_scan);
4078 pos->lp_oit_cookie = 0;
4082 lo->ll_status = LS_SCANNING_PHASE1;
4083 lo->ll_run_time_phase1 = 0;
4084 lo->ll_run_time_phase2 = 0;
4085 lo->ll_objs_checked_phase1 = 0;
4086 lo->ll_objs_checked_phase2 = 0;
4087 lo->ll_objs_failed_phase1 = 0;
4088 lo->ll_objs_failed_phase2 = 0;
4089 for (i = 0; i < LLIT_MAX; i++)
4090 lo->ll_objs_repaired[i] = 0;
4092 pos->lp_oit_cookie = lo->ll_pos_first_inconsistent;
4093 fid_zero(&com->lc_fid_latest_scanned_phase2);
4096 lo->ll_status = LS_SCANNING_PHASE1;
4097 if (!lfsck->li_drop_dryrun ||
4098 lo->ll_pos_first_inconsistent == 0)
4099 pos->lp_oit_cookie = lo->ll_pos_last_checkpoint + 1;
4101 pos->lp_oit_cookie = lo->ll_pos_first_inconsistent;
4103 spin_unlock(&lfsck->li_lock);
4104 up_write(&com->lc_sem);
4109 static int lfsck_layout_slave_prep(const struct lu_env *env,
4110 struct lfsck_component *com,
4111 struct lfsck_start_param *lsp)
4113 struct lfsck_layout_slave_data *llsd = com->lc_data;
4114 struct lfsck_instance *lfsck = com->lc_lfsck;
4115 struct lfsck_layout *lo = com->lc_file_ram;
4116 struct lfsck_start *start = lsp->lsp_start;
4119 rc = lfsck_layout_prep(env, com, start);
4123 if (lo->ll_flags & LF_CRASHED_LASTID &&
4124 list_empty(&llsd->llsd_master_list)) {
4125 LASSERT(lfsck->li_out_notify != NULL);
4127 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
4128 LE_LASTID_REBUILDING);
4131 if (!lsp->lsp_index_valid)
4134 rc = lfsck_layout_llst_add(llsd, lsp->lsp_index);
4135 if (rc == 0 && start != NULL && start->ls_flags & LPF_OST_ORPHAN) {
4136 LASSERT(!llsd->llsd_rbtree_valid);
4138 write_lock(&llsd->llsd_rb_lock);
4139 rc = lfsck_rbtree_setup(env, com);
4140 write_unlock(&llsd->llsd_rb_lock);
4143 CDEBUG(D_LFSCK, "%s: layout LFSCK slave prep done, start pos ["
4144 LPU64"]\n", lfsck_lfsck2name(lfsck),
4145 com->lc_pos_start.lp_oit_cookie);
4150 static int lfsck_layout_master_prep(const struct lu_env *env,
4151 struct lfsck_component *com,
4152 struct lfsck_start_param *lsp)
4157 rc = lfsck_layout_load_bitmap(env, com);
4159 rc = lfsck_layout_reset(env, com, false);
4161 rc = lfsck_set_param(env, com->lc_lfsck,
4162 lsp->lsp_start, true);
4168 rc = lfsck_layout_prep(env, com, lsp->lsp_start);
4172 rc = lfsck_start_assistant(env, com, lsp);
4177 CDEBUG(D_LFSCK, "%s: layout LFSCK master prep done, start pos ["
4178 LPU64"]\n", lfsck_lfsck2name(com->lc_lfsck),
4179 com->lc_pos_start.lp_oit_cookie);
4184 /* Pre-fetch the attribute for each stripe in the given layout EA. */
4185 static int lfsck_layout_scan_stripes(const struct lu_env *env,
4186 struct lfsck_component *com,
4187 struct dt_object *parent,
4188 struct lov_mds_md_v1 *lmm)
4190 struct lfsck_thread_info *info = lfsck_env_info(env);
4191 struct lfsck_instance *lfsck = com->lc_lfsck;
4192 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
4193 struct lfsck_layout *lo = com->lc_file_ram;
4194 struct lfsck_assistant_data *lad = com->lc_data;
4195 struct lfsck_layout_object *llo = NULL;
4196 struct lov_ost_data_v1 *objs;
4197 struct lfsck_tgt_descs *ltds = &lfsck->li_ost_descs;
4198 struct ptlrpc_thread *mthread = &lfsck->li_thread;
4199 struct ptlrpc_thread *athread = &lad->lad_thread;
4200 struct l_wait_info lwi = { 0 };
4208 lfsck_buf_init(&buf, &info->lti_old_pfid,
4209 sizeof(struct filter_fid_old));
4210 count = le16_to_cpu(lmm->lmm_stripe_count);
4211 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
4212 * been verified in lfsck_layout_verify_header() already. If some
4213 * new magic introduced in the future, then layout LFSCK needs to
4214 * be updated also. */
4215 magic = le32_to_cpu(lmm->lmm_magic);
4216 if (magic == LOV_MAGIC_V1) {
4217 objs = &lmm->lmm_objects[0];
4219 LASSERT(magic == LOV_MAGIC_V3);
4220 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
4223 for (i = 0; i < count; i++, objs++) {
4224 struct lu_fid *fid = &info->lti_fid;
4225 struct ost_id *oi = &info->lti_oi;
4226 struct lfsck_layout_req *llr;
4227 struct lfsck_tgt_desc *tgt = NULL;
4228 struct dt_object *cobj = NULL;
4230 bool wakeup = false;
4232 if (unlikely(lovea_slot_is_dummy(objs)))
4235 l_wait_event(mthread->t_ctl_waitq,
4236 lad->lad_prefetched < bk->lb_async_windows ||
4237 !thread_is_running(mthread) ||
4238 thread_is_stopped(athread),
4241 if (unlikely(!thread_is_running(mthread)) ||
4242 thread_is_stopped(athread))
4245 if (unlikely(lfsck_is_dead_obj(parent)))
4248 ostid_le_to_cpu(&objs->l_ost_oi, oi);
4249 index = le32_to_cpu(objs->l_ost_idx);
4250 rc = ostid_to_fid(fid, oi, index);
4252 CDEBUG(D_LFSCK, "%s: get invalid layout EA for "DFID
4253 ": "DOSTID", idx:%u\n", lfsck_lfsck2name(lfsck),
4254 PFID(lfsck_dto2fid(parent)), POSTID(oi), index);
4258 tgt = lfsck_tgt_get(ltds, index);
4259 if (unlikely(tgt == NULL)) {
4260 CDEBUG(D_LFSCK, "%s: cannot talk with OST %x which "
4261 "did not join the layout LFSCK\n",
4262 lfsck_lfsck2name(lfsck), index);
4263 lfsck_lad_set_bitmap(env, com, index);
4267 /* There is potential deadlock race condition between object
4268 * destroy and layout LFSCK. Consider the following scenario:
4270 * 1) The LFSCK thread obtained the parent object firstly, at
4271 * that time, the parent object has not been destroyed yet.
4273 * 2) One RPC service thread destroyed the parent and all its
4274 * children objects. Because the LFSCK is referencing the
4275 * parent object, then the parent object will be marked as
4276 * dying in RAM. On the other hand, the parent object is
4277 * referencing all its children objects, then all children
4278 * objects will be marked as dying in RAM also.
4280 * 3) The LFSCK thread tries to find some child object with
4281 * the parent object referenced. Then it will find that the
4282 * child object is dying. According to the object visibility
4283 * rules: the object with dying flag cannot be returned to
4284 * others. So the LFSCK thread has to wait until the dying
4285 * object has been purged from RAM, then it can allocate a
4286 * new object (with the same FID) in RAM. Unfortunately, the
4287 * LFSCK thread itself is referencing the parent object, and
4288 * cause the parent object cannot be purged, then cause the
4289 * child object cannot be purged also. So the LFSCK thread
4290 * will fall into deadlock.
4292 * We introduce non-blocked version lu_object_find() to allow
4293 * the LFSCK thread to return failure immediately (instead of
4294 * wait) when it finds dying (child) object, then the LFSCK
4295 * thread can check whether the parent object is dying or not.
4296 * So avoid above deadlock. LU-5395 */
4297 cobj = lfsck_object_find_by_dev_nowait(env, tgt->ltd_tgt, fid);
4299 if (lfsck_is_dead_obj(parent)) {
4309 rc = dt_declare_attr_get(env, cobj, BYPASS_CAPA);
4313 rc = dt_declare_xattr_get(env, cobj, &buf, XATTR_NAME_FID,
4319 llo = lfsck_layout_object_init(env, parent,
4320 lfsck->li_pos_current.lp_oit_cookie);
4327 llr = lfsck_layout_assistant_req_init(llo,
4328 lfsck_dto2fid(parent),
4336 spin_lock(&lad->lad_lock);
4337 if (lad->lad_assistant_status < 0) {
4338 spin_unlock(&lad->lad_lock);
4339 lfsck_layout_assistant_req_fini(env, &llr->llr_lar);
4341 RETURN(lad->lad_assistant_status);
4344 list_add_tail(&llr->llr_lar.lar_list, &lad->lad_req_list);
4345 if (lad->lad_prefetched == 0)
4348 lad->lad_prefetched++;
4349 spin_unlock(&lad->lad_lock);
4351 wake_up_all(&athread->t_ctl_waitq);
4354 down_write(&com->lc_sem);
4355 com->lc_new_checked++;
4357 lfsck_layout_record_failure(env, lfsck, lo);
4358 up_write(&com->lc_sem);
4360 if (cobj != NULL && !IS_ERR(cobj))
4361 lfsck_object_put(env, cobj);
4363 if (likely(tgt != NULL))
4366 if (rc < 0 && bk->lb_param & LPF_FAILOUT)
4373 if (llo != NULL && !IS_ERR(llo))
4374 lfsck_layout_object_put(env, llo);
4379 /* For the given object, read its layout EA locally. For each stripe, pre-fetch
4380 * the OST-object's attribute and generate an structure lfsck_layout_req on the
4381 * list ::lad_req_list.
4383 * For each request on above list, the lfsck_layout_assistant thread compares
4384 * the OST side attribute with local attribute, if inconsistent, then repair it.
4386 * All above processing is async mode with pipeline. */
4387 static int lfsck_layout_master_exec_oit(const struct lu_env *env,
4388 struct lfsck_component *com,
4389 struct dt_object *obj)
4391 struct lfsck_thread_info *info = lfsck_env_info(env);
4392 struct ost_id *oi = &info->lti_oi;
4393 struct lfsck_layout *lo = com->lc_file_ram;
4394 struct lfsck_assistant_data *lad = com->lc_data;
4395 struct lfsck_instance *lfsck = com->lc_lfsck;
4396 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
4397 struct thandle *handle = NULL;
4398 struct lu_buf *buf = &info->lti_big_buf;
4399 struct lov_mds_md_v1 *lmm = NULL;
4400 struct dt_device *dev = lfsck_obj2dev(obj);
4401 struct lustre_handle lh = { 0 };
4402 struct lu_buf ea_buf = { NULL };
4405 bool locked = false;
4406 bool stripe = false;
4407 bool bad_oi = false;
4410 if (!S_ISREG(lfsck_object_type(obj)))
4413 if (lad->lad_assistant_status < 0)
4414 GOTO(out, rc = -ESRCH);
4416 fid_to_lmm_oi(lfsck_dto2fid(obj), oi);
4417 lmm_oi_cpu_to_le(oi, oi);
4418 dt_read_lock(env, obj, 0);
4422 if (dt_object_exists(obj) == 0 ||
4423 lfsck_is_dead_obj(obj))
4426 rc = lfsck_layout_get_lovea(env, obj, buf);
4432 rc = lfsck_layout_verify_header(lmm);
4433 /* If the LOV EA crashed, then it is possible to be rebuilt later
4434 * when handle orphan OST-objects. */
4438 if (memcmp(oi, &lmm->lmm_oi, sizeof(*oi)) == 0)
4439 GOTO(out, stripe = true);
4441 /* Inconsistent lmm_oi, should be repaired. */
4445 if (bk->lb_param & LPF_DRYRUN) {
4446 lo->ll_objs_repaired[LLIT_OTHERS - 1]++;
4448 GOTO(out, stripe = true);
4451 if (!lustre_handle_is_used(&lh)) {
4452 dt_read_unlock(env, obj);
4454 rc = lfsck_ibits_lock(env, lfsck, obj, &lh,
4455 MDS_INODELOCK_LAYOUT |
4456 MDS_INODELOCK_XATTR, LCK_EX);
4460 handle = dt_trans_create(env, dev);
4462 GOTO(out, rc = PTR_ERR(handle));
4464 lfsck_buf_init(&ea_buf, lmm, size);
4465 rc = dt_declare_xattr_set(env, obj, &ea_buf, XATTR_NAME_LOV,
4466 LU_XATTR_REPLACE, handle);
4470 rc = dt_trans_start_local(env, dev, handle);
4474 dt_write_lock(env, obj, 0);
4480 rc = dt_xattr_set(env, obj, &ea_buf, XATTR_NAME_LOV,
4481 LU_XATTR_REPLACE, handle, BYPASS_CAPA);
4485 lo->ll_objs_repaired[LLIT_OTHERS - 1]++;
4487 GOTO(out, stripe = true);
4491 if (lustre_handle_is_used(&lh))
4492 dt_write_unlock(env, obj);
4494 dt_read_unlock(env, obj);
4497 if (handle != NULL && !IS_ERR(handle))
4498 dt_trans_stop(env, dev, handle);
4500 lfsck_ibits_unlock(&lh, LCK_EX);
4503 CDEBUG(D_LFSCK, "%s: layout LFSCK master %s bad lmm_oi for "
4504 DFID": rc = %d\n", lfsck_lfsck2name(lfsck),
4505 bk->lb_param & LPF_DRYRUN ? "found" : "repaired",
4506 PFID(lfsck_dto2fid(obj)), rc);
4509 rc = lfsck_layout_scan_stripes(env, com, obj, lmm);
4511 down_write(&com->lc_sem);
4512 com->lc_new_checked++;
4514 lfsck_layout_record_failure(env, lfsck, lo);
4515 up_write(&com->lc_sem);
4521 static int lfsck_layout_slave_exec_oit(const struct lu_env *env,
4522 struct lfsck_component *com,
4523 struct dt_object *obj)
4525 struct lfsck_instance *lfsck = com->lc_lfsck;
4526 struct lfsck_layout *lo = com->lc_file_ram;
4527 const struct lu_fid *fid = lfsck_dto2fid(obj);
4528 struct lfsck_layout_slave_data *llsd = com->lc_data;
4529 struct lfsck_layout_seq *lls;
4535 LASSERT(llsd != NULL);
4537 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY5) &&
4538 cfs_fail_val == lfsck_dev_idx(lfsck)) {
4539 struct l_wait_info lwi = LWI_TIMEOUT(cfs_time_seconds(1),
4541 struct ptlrpc_thread *thread = &lfsck->li_thread;
4543 l_wait_event(thread->t_ctl_waitq,
4544 !thread_is_running(thread),
4548 lfsck_rbtree_update_bitmap(env, com, fid, false);
4550 down_write(&com->lc_sem);
4551 if (fid_is_idif(fid))
4553 else if (!fid_is_norm(fid) ||
4554 !fid_is_for_ostobj(env, lfsck, obj, fid))
4555 GOTO(unlock, rc = 0);
4558 com->lc_new_checked++;
4560 lls = lfsck_layout_seq_lookup(llsd, seq);
4563 if (unlikely(lls == NULL))
4564 GOTO(unlock, rc = -ENOMEM);
4566 INIT_LIST_HEAD(&lls->lls_list);
4568 rc = lfsck_layout_lastid_load(env, com, lls);
4570 CDEBUG(D_LFSCK, "%s: layout LFSCK failed to "
4571 "load LAST_ID for "LPX64": rc = %d\n",
4572 lfsck_lfsck2name(com->lc_lfsck), seq, rc);
4573 lo->ll_objs_failed_phase1++;
4578 lfsck_layout_seq_insert(llsd, lls);
4581 if (unlikely(fid_is_last_id(fid)))
4582 GOTO(unlock, rc = 0);
4584 if (fid_is_idif(fid))
4585 oid = fid_idif_id(fid_seq(fid), fid_oid(fid), fid_ver(fid));
4589 if (oid > lls->lls_lastid_known)
4590 lls->lls_lastid_known = oid;
4592 if (oid > lls->lls_lastid) {
4593 if (!(lo->ll_flags & LF_CRASHED_LASTID)) {
4594 /* OFD may create new objects during LFSCK scanning. */
4595 rc = lfsck_layout_lastid_reload(env, com, lls);
4596 if (unlikely(rc != 0)) {
4597 CDEBUG(D_LFSCK, "%s: layout LFSCK failed to "
4598 "reload LAST_ID for "LPX64": rc = %d\n",
4599 lfsck_lfsck2name(com->lc_lfsck),
4605 if (oid <= lls->lls_lastid ||
4606 lo->ll_flags & LF_CRASHED_LASTID)
4607 GOTO(unlock, rc = 0);
4609 LASSERT(lfsck->li_out_notify != NULL);
4611 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
4612 LE_LASTID_REBUILDING);
4613 lo->ll_flags |= LF_CRASHED_LASTID;
4615 CDEBUG(D_LFSCK, "%s: layout LFSCK finds crashed "
4616 "LAST_ID file (2) for the sequence "LPX64
4617 ", old value "LPU64", known value "LPU64"\n",
4618 lfsck_lfsck2name(lfsck), lls->lls_seq,
4619 lls->lls_lastid, oid);
4622 lls->lls_lastid = oid;
4626 GOTO(unlock, rc = 0);
4629 up_write(&com->lc_sem);
4634 static int lfsck_layout_exec_dir(const struct lu_env *env,
4635 struct lfsck_component *com,
4636 struct lu_dirent *ent, __u16 type)
4641 static int lfsck_layout_master_post(const struct lu_env *env,
4642 struct lfsck_component *com,
4643 int result, bool init)
4645 struct lfsck_instance *lfsck = com->lc_lfsck;
4646 struct lfsck_layout *lo = com->lc_file_ram;
4650 lfsck_post_generic(env, com, &result);
4652 down_write(&com->lc_sem);
4653 spin_lock(&lfsck->li_lock);
4655 lo->ll_pos_last_checkpoint =
4656 lfsck->li_pos_checkpoint.lp_oit_cookie;
4659 if (lo->ll_flags & LF_INCOMPLETE)
4660 lo->ll_status = LS_PARTIAL;
4662 lo->ll_status = LS_SCANNING_PHASE2;
4663 lo->ll_flags |= LF_SCANNED_ONCE;
4664 lo->ll_flags &= ~LF_UPGRADE;
4665 list_move_tail(&com->lc_link, &lfsck->li_list_double_scan);
4666 } else if (result == 0) {
4667 if (lfsck->li_status != 0)
4668 lo->ll_status = lfsck->li_status;
4670 lo->ll_status = LS_STOPPED;
4671 if (lo->ll_status != LS_PAUSED)
4672 list_move_tail(&com->lc_link, &lfsck->li_list_idle);
4674 lo->ll_status = LS_FAILED;
4675 list_move_tail(&com->lc_link, &lfsck->li_list_idle);
4677 spin_unlock(&lfsck->li_lock);
4680 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
4681 HALF_SEC - lfsck->li_time_last_checkpoint);
4682 lo->ll_time_last_checkpoint = cfs_time_current_sec();
4683 lo->ll_objs_checked_phase1 += com->lc_new_checked;
4684 com->lc_new_checked = 0;
4687 rc = lfsck_layout_store(env, com);
4688 up_write(&com->lc_sem);
4690 CDEBUG(D_LFSCK, "%s: layout LFSCK master post done: rc = %d\n",
4691 lfsck_lfsck2name(lfsck), rc);
4696 static int lfsck_layout_slave_post(const struct lu_env *env,
4697 struct lfsck_component *com,
4698 int result, bool init)
4700 struct lfsck_instance *lfsck = com->lc_lfsck;
4701 struct lfsck_layout *lo = com->lc_file_ram;
4705 rc = lfsck_layout_lastid_store(env, com);
4709 LASSERT(lfsck->li_out_notify != NULL);
4711 down_write(&com->lc_sem);
4712 spin_lock(&lfsck->li_lock);
4714 lo->ll_pos_last_checkpoint =
4715 lfsck->li_pos_checkpoint.lp_oit_cookie;
4718 lo->ll_status = LS_SCANNING_PHASE2;
4719 lo->ll_flags |= LF_SCANNED_ONCE;
4720 if (lo->ll_flags & LF_CRASHED_LASTID) {
4722 lo->ll_flags &= ~LF_CRASHED_LASTID;
4724 CDEBUG(D_LFSCK, "%s: layout LFSCK has rebuilt "
4725 "crashed LAST_ID files successfully\n",
4726 lfsck_lfsck2name(lfsck));
4728 lo->ll_flags &= ~LF_UPGRADE;
4729 list_move_tail(&com->lc_link, &lfsck->li_list_double_scan);
4730 } else if (result == 0) {
4731 if (lfsck->li_status != 0)
4732 lo->ll_status = lfsck->li_status;
4734 lo->ll_status = LS_STOPPED;
4735 if (lo->ll_status != LS_PAUSED)
4736 list_move_tail(&com->lc_link, &lfsck->li_list_idle);
4738 lo->ll_status = LS_FAILED;
4739 list_move_tail(&com->lc_link, &lfsck->li_list_idle);
4741 spin_unlock(&lfsck->li_lock);
4744 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
4748 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
4749 HALF_SEC - lfsck->li_time_last_checkpoint);
4750 lo->ll_time_last_checkpoint = cfs_time_current_sec();
4751 lo->ll_objs_checked_phase1 += com->lc_new_checked;
4752 com->lc_new_checked = 0;
4755 rc = lfsck_layout_store(env, com);
4756 up_write(&com->lc_sem);
4758 lfsck_layout_slave_notify_master(env, com, LE_PHASE1_DONE, result);
4760 CDEBUG(D_LFSCK, "%s: layout LFSCK slave post done: rc = %d\n",
4761 lfsck_lfsck2name(lfsck), rc);
4766 static int lfsck_layout_dump(const struct lu_env *env,
4767 struct lfsck_component *com, struct seq_file *m)
4769 struct lfsck_instance *lfsck = com->lc_lfsck;
4770 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
4771 struct lfsck_layout *lo = com->lc_file_ram;
4774 down_read(&com->lc_sem);
4775 seq_printf(m, "name: lfsck_layout\n"
4781 lfsck_status2names(lo->ll_status));
4783 rc = lfsck_bits_dump(m, lo->ll_flags, lfsck_flags_names, "flags");
4787 rc = lfsck_bits_dump(m, bk->lb_param, lfsck_param_names, "param");
4791 rc = lfsck_time_dump(m, lo->ll_time_last_complete,
4796 rc = lfsck_time_dump(m, lo->ll_time_latest_start,
4801 rc = lfsck_time_dump(m, lo->ll_time_last_checkpoint,
4806 seq_printf(m, "latest_start_position: "LPU64"\n"
4807 "last_checkpoint_position: "LPU64"\n"
4808 "first_failure_position: "LPU64"\n",
4809 lo->ll_pos_latest_start,
4810 lo->ll_pos_last_checkpoint,
4811 lo->ll_pos_first_inconsistent);
4813 seq_printf(m, "success_count: %u\n"
4814 "repaired_dangling: "LPU64"\n"
4815 "repaired_unmatched_pair: "LPU64"\n"
4816 "repaired_multiple_referenced: "LPU64"\n"
4817 "repaired_orphan: "LPU64"\n"
4818 "repaired_inconsistent_owner: "LPU64"\n"
4819 "repaired_others: "LPU64"\n"
4820 "skipped: "LPU64"\n"
4821 "failed_phase1: "LPU64"\n"
4822 "failed_phase2: "LPU64"\n",
4823 lo->ll_success_count,
4824 lo->ll_objs_repaired[LLIT_DANGLING - 1],
4825 lo->ll_objs_repaired[LLIT_UNMATCHED_PAIR - 1],
4826 lo->ll_objs_repaired[LLIT_MULTIPLE_REFERENCED - 1],
4827 lo->ll_objs_repaired[LLIT_ORPHAN - 1],
4828 lo->ll_objs_repaired[LLIT_INCONSISTENT_OWNER - 1],
4829 lo->ll_objs_repaired[LLIT_OTHERS - 1],
4830 lo->ll_objs_skipped,
4831 lo->ll_objs_failed_phase1,
4832 lo->ll_objs_failed_phase2);
4834 if (lo->ll_status == LS_SCANNING_PHASE1) {
4836 const struct dt_it_ops *iops;
4837 cfs_duration_t duration = cfs_time_current() -
4838 lfsck->li_time_last_checkpoint;
4839 __u64 checked = lo->ll_objs_checked_phase1 +
4840 com->lc_new_checked;
4841 __u64 speed = checked;
4842 __u64 new_checked = com->lc_new_checked *
4843 msecs_to_jiffies(MSEC_PER_SEC);
4844 __u32 rtime = lo->ll_run_time_phase1 +
4845 cfs_duration_sec(duration + HALF_SEC);
4848 do_div(new_checked, duration);
4850 do_div(speed, rtime);
4851 seq_printf(m, "checked_phase1: "LPU64"\n"
4852 "checked_phase2: "LPU64"\n"
4853 "run_time_phase1: %u seconds\n"
4854 "run_time_phase2: %u seconds\n"
4855 "average_speed_phase1: "LPU64" items/sec\n"
4856 "average_speed_phase2: N/A\n"
4857 "real-time_speed_phase1: "LPU64" items/sec\n"
4858 "real-time_speed_phase2: N/A\n",
4860 lo->ll_objs_checked_phase2,
4862 lo->ll_run_time_phase2,
4866 LASSERT(lfsck->li_di_oit != NULL);
4868 iops = &lfsck->li_obj_oit->do_index_ops->dio_it;
4870 /* The low layer otable-based iteration position may NOT
4871 * exactly match the layout-based directory traversal
4872 * cookie. Generally, it is not a serious issue. But the
4873 * caller should NOT make assumption on that. */
4874 pos = iops->store(env, lfsck->li_di_oit);
4875 if (!lfsck->li_current_oit_processed)
4877 seq_printf(m, "current_position: "LPU64"\n", pos);
4879 } else if (lo->ll_status == LS_SCANNING_PHASE2) {
4880 cfs_duration_t duration = cfs_time_current() -
4881 lfsck->li_time_last_checkpoint;
4882 __u64 checked = lo->ll_objs_checked_phase2 +
4883 com->lc_new_checked;
4884 __u64 speed1 = lo->ll_objs_checked_phase1;
4885 __u64 speed2 = checked;
4886 __u64 new_checked = com->lc_new_checked *
4887 msecs_to_jiffies(MSEC_PER_SEC);
4888 __u32 rtime = lo->ll_run_time_phase2 +
4889 cfs_duration_sec(duration + HALF_SEC);
4892 do_div(new_checked, duration);
4893 if (lo->ll_run_time_phase1 != 0)
4894 do_div(speed1, lo->ll_run_time_phase1);
4896 do_div(speed2, rtime);
4897 rc = seq_printf(m, "checked_phase1: "LPU64"\n"
4898 "checked_phase2: "LPU64"\n"
4899 "run_time_phase1: %u seconds\n"
4900 "run_time_phase2: %u seconds\n"
4901 "average_speed_phase1: "LPU64" items/sec\n"
4902 "average_speed_phase2: "LPU64" items/sec\n"
4903 "real-time_speed_phase1: N/A\n"
4904 "real-time_speed_phase2: "LPU64" items/sec\n"
4905 "current_position: "DFID"\n",
4906 lo->ll_objs_checked_phase1,
4908 lo->ll_run_time_phase1,
4913 PFID(&com->lc_fid_latest_scanned_phase2));
4918 __u64 speed1 = lo->ll_objs_checked_phase1;
4919 __u64 speed2 = lo->ll_objs_checked_phase2;
4921 if (lo->ll_run_time_phase1 != 0)
4922 do_div(speed1, lo->ll_run_time_phase1);
4923 if (lo->ll_run_time_phase2 != 0)
4924 do_div(speed2, lo->ll_run_time_phase2);
4925 seq_printf(m, "checked_phase1: "LPU64"\n"
4926 "checked_phase2: "LPU64"\n"
4927 "run_time_phase1: %u seconds\n"
4928 "run_time_phase2: %u seconds\n"
4929 "average_speed_phase1: "LPU64" items/sec\n"
4930 "average_speed_phase2: "LPU64" objs/sec\n"
4931 "real-time_speed_phase1: N/A\n"
4932 "real-time_speed_phase2: N/A\n"
4933 "current_position: N/A\n",
4934 lo->ll_objs_checked_phase1,
4935 lo->ll_objs_checked_phase2,
4936 lo->ll_run_time_phase1,
4937 lo->ll_run_time_phase2,
4942 up_read(&com->lc_sem);
4947 static int lfsck_layout_master_double_scan(const struct lu_env *env,
4948 struct lfsck_component *com)
4950 struct lfsck_layout *lo = com->lc_file_ram;
4951 struct lfsck_assistant_data *lad = com->lc_data;
4952 struct lfsck_instance *lfsck = com->lc_lfsck;
4953 struct lfsck_tgt_descs *ltds;
4954 struct lfsck_tgt_desc *ltd;
4955 struct lfsck_tgt_desc *next;
4958 rc = lfsck_double_scan_generic(env, com, lo->ll_status);
4960 if (thread_is_stopped(&lad->lad_thread)) {
4961 LASSERT(list_empty(&lad->lad_req_list));
4962 LASSERT(list_empty(&lad->lad_ost_phase1_list));
4963 LASSERT(list_empty(&lad->lad_mdt_phase1_list));
4965 ltds = &lfsck->li_ost_descs;
4966 spin_lock(<ds->ltd_lock);
4967 list_for_each_entry_safe(ltd, next, &lad->lad_ost_phase2_list,
4968 ltd_layout_phase_list) {
4969 list_del_init(<d->ltd_layout_phase_list);
4971 spin_unlock(<ds->ltd_lock);
4973 ltds = &lfsck->li_mdt_descs;
4974 spin_lock(<ds->ltd_lock);
4975 list_for_each_entry_safe(ltd, next, &lad->lad_mdt_phase2_list,
4976 ltd_layout_phase_list) {
4977 list_del_init(<d->ltd_layout_phase_list);
4979 spin_unlock(<ds->ltd_lock);
4985 static int lfsck_layout_slave_double_scan(const struct lu_env *env,
4986 struct lfsck_component *com)
4988 struct lfsck_instance *lfsck = com->lc_lfsck;
4989 struct lfsck_layout_slave_data *llsd = com->lc_data;
4990 struct lfsck_layout *lo = com->lc_file_ram;
4991 struct ptlrpc_thread *thread = &lfsck->li_thread;
4995 CDEBUG(D_LFSCK, "%s: layout LFSCK slave phase2 scan start\n",
4996 lfsck_lfsck2name(lfsck));
4998 atomic_inc(&lfsck->li_double_scan_count);
5000 if (lo->ll_flags & LF_INCOMPLETE)
5003 com->lc_new_checked = 0;
5004 com->lc_new_scanned = 0;
5005 com->lc_time_last_checkpoint = cfs_time_current();
5006 com->lc_time_next_checkpoint = com->lc_time_last_checkpoint +
5007 cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
5010 struct l_wait_info lwi = LWI_TIMEOUT(cfs_time_seconds(30),
5013 rc = lfsck_layout_slave_query_master(env, com);
5014 if (list_empty(&llsd->llsd_master_list)) {
5015 if (unlikely(!thread_is_running(thread)))
5026 rc = l_wait_event(thread->t_ctl_waitq,
5027 !thread_is_running(thread) ||
5028 lo->ll_flags & LF_INCOMPLETE ||
5029 list_empty(&llsd->llsd_master_list),
5031 if (unlikely(!thread_is_running(thread)))
5034 if (lo->ll_flags & LF_INCOMPLETE)
5037 if (rc == -ETIMEDOUT)
5040 GOTO(done, rc = (rc < 0 ? rc : 1));
5044 rc = lfsck_layout_double_scan_result(env, com, rc);
5045 lfsck_layout_slave_notify_master(env, com, LE_PHASE2_DONE,
5046 (rc > 0 && lo->ll_flags & LF_INCOMPLETE) ? 0 : rc);
5047 lfsck_layout_slave_quit(env, com);
5048 if (atomic_dec_and_test(&lfsck->li_double_scan_count))
5049 wake_up_all(&lfsck->li_thread.t_ctl_waitq);
5051 CDEBUG(D_LFSCK, "%s: layout LFSCK slave phase2 scan finished, "
5052 "status %d: rc = %d\n",
5053 lfsck_lfsck2name(lfsck), lo->ll_status, rc);
5058 static void lfsck_layout_master_data_release(const struct lu_env *env,
5059 struct lfsck_component *com)
5061 struct lfsck_assistant_data *lad = com->lc_data;
5062 struct lfsck_instance *lfsck = com->lc_lfsck;
5063 struct lfsck_tgt_descs *ltds;
5064 struct lfsck_tgt_desc *ltd;
5065 struct lfsck_tgt_desc *next;
5067 LASSERT(lad != NULL);
5068 LASSERT(thread_is_init(&lad->lad_thread) ||
5069 thread_is_stopped(&lad->lad_thread));
5070 LASSERT(list_empty(&lad->lad_req_list));
5072 com->lc_data = NULL;
5074 ltds = &lfsck->li_ost_descs;
5075 spin_lock(<ds->ltd_lock);
5076 list_for_each_entry_safe(ltd, next, &lad->lad_ost_phase1_list,
5077 ltd_layout_phase_list) {
5078 list_del_init(<d->ltd_layout_phase_list);
5080 list_for_each_entry_safe(ltd, next, &lad->lad_ost_phase2_list,
5081 ltd_layout_phase_list) {
5082 list_del_init(<d->ltd_layout_phase_list);
5084 list_for_each_entry_safe(ltd, next, &lad->lad_ost_list,
5086 list_del_init(<d->ltd_layout_list);
5088 spin_unlock(<ds->ltd_lock);
5090 ltds = &lfsck->li_mdt_descs;
5091 spin_lock(<ds->ltd_lock);
5092 list_for_each_entry_safe(ltd, next, &lad->lad_mdt_phase1_list,
5093 ltd_layout_phase_list) {
5094 list_del_init(<d->ltd_layout_phase_list);
5096 list_for_each_entry_safe(ltd, next, &lad->lad_mdt_phase2_list,
5097 ltd_layout_phase_list) {
5098 list_del_init(<d->ltd_layout_phase_list);
5100 list_for_each_entry_safe(ltd, next, &lad->lad_mdt_list,
5102 list_del_init(<d->ltd_layout_list);
5104 spin_unlock(<ds->ltd_lock);
5106 if (likely(lad->lad_bitmap != NULL))
5107 CFS_FREE_BITMAP(lad->lad_bitmap);
5112 static void lfsck_layout_slave_data_release(const struct lu_env *env,
5113 struct lfsck_component *com)
5115 struct lfsck_layout_slave_data *llsd = com->lc_data;
5117 lfsck_layout_slave_quit(env, com);
5118 com->lc_data = NULL;
5122 static void lfsck_layout_master_quit(const struct lu_env *env,
5123 struct lfsck_component *com)
5125 struct lfsck_assistant_data *lad = com->lc_data;
5126 struct lfsck_instance *lfsck = com->lc_lfsck;
5127 struct lfsck_tgt_descs *ltds;
5128 struct lfsck_tgt_desc *ltd;
5129 struct lfsck_tgt_desc *next;
5131 LASSERT(lad != NULL);
5133 lfsck_quit_generic(env, com);
5135 LASSERT(thread_is_init(&lad->lad_thread) ||
5136 thread_is_stopped(&lad->lad_thread));
5137 LASSERT(list_empty(&lad->lad_req_list));
5139 ltds = &lfsck->li_ost_descs;
5140 spin_lock(<ds->ltd_lock);
5141 list_for_each_entry_safe(ltd, next, &lad->lad_ost_phase1_list,
5142 ltd_layout_phase_list) {
5143 list_del_init(<d->ltd_layout_phase_list);
5145 list_for_each_entry_safe(ltd, next, &lad->lad_ost_phase2_list,
5146 ltd_layout_phase_list) {
5147 list_del_init(<d->ltd_layout_phase_list);
5149 spin_unlock(<ds->ltd_lock);
5151 ltds = &lfsck->li_mdt_descs;
5152 spin_lock(<ds->ltd_lock);
5153 list_for_each_entry_safe(ltd, next, &lad->lad_mdt_phase1_list,
5154 ltd_layout_phase_list) {
5155 list_del_init(<d->ltd_layout_phase_list);
5157 list_for_each_entry_safe(ltd, next, &lad->lad_mdt_phase2_list,
5158 ltd_layout_phase_list) {
5159 list_del_init(<d->ltd_layout_phase_list);
5161 spin_unlock(<ds->ltd_lock);
5164 static void lfsck_layout_slave_quit(const struct lu_env *env,
5165 struct lfsck_component *com)
5167 struct lfsck_layout_slave_data *llsd = com->lc_data;
5168 struct lfsck_layout_seq *lls;
5169 struct lfsck_layout_seq *next;
5170 struct lfsck_layout_slave_target *llst;
5172 LASSERT(llsd != NULL);
5174 list_for_each_entry_safe(lls, next, &llsd->llsd_seq_list,
5176 list_del_init(&lls->lls_list);
5177 lfsck_object_put(env, lls->lls_lastid_obj);
5181 spin_lock(&llsd->llsd_lock);
5182 while (!list_empty(&llsd->llsd_master_list)) {
5183 llst = list_entry(llsd->llsd_master_list.next,
5184 struct lfsck_layout_slave_target, llst_list);
5185 list_del_init(&llst->llst_list);
5186 spin_unlock(&llsd->llsd_lock);
5187 lfsck_layout_llst_put(llst);
5188 spin_lock(&llsd->llsd_lock);
5190 spin_unlock(&llsd->llsd_lock);
5192 lfsck_rbtree_cleanup(env, com);
5195 static int lfsck_layout_master_in_notify(const struct lu_env *env,
5196 struct lfsck_component *com,
5197 struct lfsck_request *lr,
5200 struct lfsck_instance *lfsck = com->lc_lfsck;
5201 struct lfsck_layout *lo = com->lc_file_ram;
5202 struct lfsck_assistant_data *lad = com->lc_data;
5203 struct lfsck_tgt_descs *ltds;
5204 struct lfsck_tgt_desc *ltd;
5208 if (lr->lr_event == LE_PAIRS_VERIFY) {
5211 rc = lfsck_layout_master_check_pairs(env, com, &lr->lr_fid,
5217 CDEBUG(D_LFSCK, "%s: layout LFSCK master handles notify %u "
5218 "from %s %x, status %d, flags %x, flags2 %x\n",
5219 lfsck_lfsck2name(lfsck), lr->lr_event,
5220 (lr->lr_flags & LEF_FROM_OST) ? "OST" : "MDT",
5221 lr->lr_index, lr->lr_status, lr->lr_flags, lr->lr_flags2);
5223 if (lr->lr_event != LE_PHASE1_DONE &&
5224 lr->lr_event != LE_PHASE2_DONE &&
5225 lr->lr_event != LE_PEER_EXIT)
5228 if (lr->lr_flags & LEF_FROM_OST)
5229 ltds = &lfsck->li_ost_descs;
5231 ltds = &lfsck->li_mdt_descs;
5232 spin_lock(<ds->ltd_lock);
5233 ltd = LTD_TGT(ltds, lr->lr_index);
5235 spin_unlock(<ds->ltd_lock);
5240 list_del_init(<d->ltd_layout_phase_list);
5241 switch (lr->lr_event) {
5242 case LE_PHASE1_DONE:
5243 if (lr->lr_status <= 0 || lr->lr_flags2 & LF_INCOMPLETE) {
5244 if (lr->lr_flags2 & LF_INCOMPLETE) {
5245 if (lr->lr_flags & LEF_FROM_OST)
5246 lfsck_lad_set_bitmap(env, com,
5249 lo->ll_flags |= LF_INCOMPLETE;
5251 ltd->ltd_layout_done = 1;
5252 list_del_init(<d->ltd_layout_list);
5257 if (lr->lr_flags & LEF_FROM_OST) {
5258 if (list_empty(<d->ltd_layout_list))
5259 list_add_tail(<d->ltd_layout_list,
5260 &lad->lad_ost_list);
5261 list_add_tail(<d->ltd_layout_phase_list,
5262 &lad->lad_ost_phase2_list);
5264 if (list_empty(<d->ltd_layout_list))
5265 list_add_tail(<d->ltd_layout_list,
5266 &lad->lad_mdt_list);
5267 list_add_tail(<d->ltd_layout_phase_list,
5268 &lad->lad_mdt_phase2_list);
5271 case LE_PHASE2_DONE:
5272 ltd->ltd_layout_done = 1;
5273 if (!list_empty(<d->ltd_layout_list)) {
5274 list_del_init(<d->ltd_layout_list);
5275 if (lr->lr_flags2 & LF_INCOMPLETE) {
5276 lfsck_lad_set_bitmap(env, com, ltd->ltd_index);
5284 ltd->ltd_layout_done = 1;
5285 list_del_init(<d->ltd_layout_list);
5286 if (!(lfsck->li_bookmark_ram.lb_param & LPF_FAILOUT) &&
5287 !(lr->lr_flags & LEF_FROM_OST))
5288 lo->ll_flags |= LF_INCOMPLETE;
5293 spin_unlock(<ds->ltd_lock);
5295 if (fail && lfsck->li_bookmark_ram.lb_param & LPF_FAILOUT) {
5296 struct lfsck_stop *stop = &lfsck_env_info(env)->lti_stop;
5298 memset(stop, 0, sizeof(*stop));
5299 stop->ls_status = lr->lr_status;
5300 stop->ls_flags = lr->lr_param & ~LPF_BROADCAST;
5301 lfsck_stop(env, lfsck->li_bottom, stop);
5302 } else if (lfsck_phase2_next_ready(lad)) {
5303 wake_up_all(&lad->lad_thread.t_ctl_waitq);
5309 static int lfsck_layout_slave_in_notify(const struct lu_env *env,
5310 struct lfsck_component *com,
5311 struct lfsck_request *lr,
5314 struct lfsck_instance *lfsck = com->lc_lfsck;
5315 struct lfsck_layout_slave_data *llsd = com->lc_data;
5316 struct lfsck_layout_slave_target *llst;
5320 switch (lr->lr_event) {
5321 case LE_FID_ACCESSED:
5322 lfsck_rbtree_update_bitmap(env, com, &lr->lr_fid, true);
5324 case LE_CONDITIONAL_DESTROY:
5325 rc = lfsck_layout_slave_conditional_destroy(env, com, lr);
5327 case LE_PAIRS_VERIFY: {
5328 lr->lr_status = LPVS_INIT;
5329 /* Firstly, if the MDT-object which is claimed via OST-object
5330 * local stored PFID xattr recognizes the OST-object, then it
5331 * must be that the client given PFID is wrong. */
5332 rc = lfsck_layout_slave_check_pairs(env, com, &lr->lr_fid,
5337 lr->lr_status = LPVS_INCONSISTENT;
5338 /* The OST-object local stored PFID xattr is stale. We need to
5339 * check whether the MDT-object that is claimed via the client
5340 * given PFID information recognizes the OST-object or not. If
5341 * matches, then need to update the OST-object's PFID xattr. */
5342 rc = lfsck_layout_slave_check_pairs(env, com, &lr->lr_fid,
5345 * We are not sure whether the client given PFID information
5346 * is correct or not, do nothing to avoid improper fixing.
5349 * The client given PFID information is also invalid, we can
5350 * NOT fix the OST-object inconsistency.
5355 lr->lr_status = LPVS_INCONSISTENT_TOFIX;
5356 rc = lfsck_layout_slave_repair_pfid(env, com, lr);
5360 case LE_PHASE1_DONE: {
5361 if (lr->lr_flags2 & LF_INCOMPLETE) {
5362 struct lfsck_layout *lo = com->lc_file_ram;
5364 lo->ll_flags |= LF_INCOMPLETE;
5365 llst = lfsck_layout_llst_find_and_del(llsd,
5369 lfsck_layout_llst_put(llst);
5370 wake_up_all(&lfsck->li_thread.t_ctl_waitq);
5376 case LE_PHASE2_DONE:
5378 CDEBUG(D_LFSCK, "%s: layout LFSCK slave handle notify %u "
5379 "from MDT %x, status %d\n", lfsck_lfsck2name(lfsck),
5380 lr->lr_event, lr->lr_index, lr->lr_status);
5386 llst = lfsck_layout_llst_find_and_del(llsd, lr->lr_index, true);
5390 lfsck_layout_llst_put(llst);
5391 if (list_empty(&llsd->llsd_master_list))
5392 wake_up_all(&lfsck->li_thread.t_ctl_waitq);
5394 if (lr->lr_event == LE_PEER_EXIT &&
5395 (lfsck->li_bookmark_ram.lb_param & LPF_FAILOUT ||
5396 (list_empty(&llsd->llsd_master_list) &&
5397 (lr->lr_status == LS_STOPPED ||
5398 lr->lr_status == LS_CO_STOPPED)))) {
5399 struct lfsck_stop *stop = &lfsck_env_info(env)->lti_stop;
5401 memset(stop, 0, sizeof(*stop));
5402 stop->ls_status = lr->lr_status;
5403 stop->ls_flags = lr->lr_param & ~LPF_BROADCAST;
5404 lfsck_stop(env, lfsck->li_bottom, stop);
5410 static int lfsck_layout_query(const struct lu_env *env,
5411 struct lfsck_component *com)
5413 struct lfsck_layout *lo = com->lc_file_ram;
5415 return lo->ll_status;
5418 /* with lfsck::li_lock held */
5419 static int lfsck_layout_slave_join(const struct lu_env *env,
5420 struct lfsck_component *com,
5421 struct lfsck_start_param *lsp)
5423 struct lfsck_instance *lfsck = com->lc_lfsck;
5424 struct lfsck_layout_slave_data *llsd = com->lc_data;
5425 struct lfsck_layout_slave_target *llst;
5426 struct lfsck_start *start = lsp->lsp_start;
5430 if (start == NULL || !(start->ls_flags & LPF_OST_ORPHAN))
5433 if (!lsp->lsp_index_valid)
5436 /* If someone is running the LFSCK without orphan handling,
5437 * it will not maintain the object accessing rbtree. So we
5438 * cannot join it for orphan handling. */
5439 if (!llsd->llsd_rbtree_valid)
5442 spin_unlock(&lfsck->li_lock);
5443 rc = lfsck_layout_llst_add(llsd, lsp->lsp_index);
5444 spin_lock(&lfsck->li_lock);
5445 if (rc == 0 && !thread_is_running(&lfsck->li_thread)) {
5446 spin_unlock(&lfsck->li_lock);
5447 llst = lfsck_layout_llst_find_and_del(llsd, lsp->lsp_index,
5450 lfsck_layout_llst_put(llst);
5451 spin_lock(&lfsck->li_lock);
5458 static struct lfsck_operations lfsck_layout_master_ops = {
5459 .lfsck_reset = lfsck_layout_reset,
5460 .lfsck_fail = lfsck_layout_fail,
5461 .lfsck_checkpoint = lfsck_layout_master_checkpoint,
5462 .lfsck_prep = lfsck_layout_master_prep,
5463 .lfsck_exec_oit = lfsck_layout_master_exec_oit,
5464 .lfsck_exec_dir = lfsck_layout_exec_dir,
5465 .lfsck_post = lfsck_layout_master_post,
5466 .lfsck_dump = lfsck_layout_dump,
5467 .lfsck_double_scan = lfsck_layout_master_double_scan,
5468 .lfsck_data_release = lfsck_layout_master_data_release,
5469 .lfsck_quit = lfsck_layout_master_quit,
5470 .lfsck_in_notify = lfsck_layout_master_in_notify,
5471 .lfsck_query = lfsck_layout_query,
5474 static struct lfsck_operations lfsck_layout_slave_ops = {
5475 .lfsck_reset = lfsck_layout_reset,
5476 .lfsck_fail = lfsck_layout_fail,
5477 .lfsck_checkpoint = lfsck_layout_slave_checkpoint,
5478 .lfsck_prep = lfsck_layout_slave_prep,
5479 .lfsck_exec_oit = lfsck_layout_slave_exec_oit,
5480 .lfsck_exec_dir = lfsck_layout_exec_dir,
5481 .lfsck_post = lfsck_layout_slave_post,
5482 .lfsck_dump = lfsck_layout_dump,
5483 .lfsck_double_scan = lfsck_layout_slave_double_scan,
5484 .lfsck_data_release = lfsck_layout_slave_data_release,
5485 .lfsck_quit = lfsck_layout_slave_quit,
5486 .lfsck_in_notify = lfsck_layout_slave_in_notify,
5487 .lfsck_query = lfsck_layout_query,
5488 .lfsck_join = lfsck_layout_slave_join,
5491 static void lfsck_layout_assistant_fill_pos(const struct lu_env *env,
5492 struct lfsck_component *com,
5493 struct lfsck_position *pos)
5495 struct lfsck_assistant_data *lad = com->lc_data;
5496 struct lfsck_layout_req *llr;
5498 if (list_empty(&lad->lad_req_list))
5501 llr = list_entry(lad->lad_req_list.next,
5502 struct lfsck_layout_req,
5504 pos->lp_oit_cookie = llr->llr_parent->llo_cookie - 1;
5507 struct lfsck_assistant_operations lfsck_layout_assistant_ops = {
5508 .la_handler_p1 = lfsck_layout_assistant_handler_p1,
5509 .la_handler_p2 = lfsck_layout_assistant_handler_p2,
5510 .la_fill_pos = lfsck_layout_assistant_fill_pos,
5511 .la_double_scan_result = lfsck_layout_double_scan_result,
5512 .la_req_fini = lfsck_layout_assistant_req_fini,
5513 .la_sync_failures = lfsck_layout_assistant_sync_failures,
5516 int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck)
5518 struct lfsck_component *com;
5519 struct lfsck_layout *lo;
5520 struct dt_object *root = NULL;
5521 struct dt_object *obj;
5529 INIT_LIST_HEAD(&com->lc_link);
5530 INIT_LIST_HEAD(&com->lc_link_dir);
5531 init_rwsem(&com->lc_sem);
5532 atomic_set(&com->lc_ref, 1);
5533 com->lc_lfsck = lfsck;
5534 com->lc_type = LFSCK_TYPE_LAYOUT;
5535 if (lfsck->li_master) {
5536 com->lc_ops = &lfsck_layout_master_ops;
5537 com->lc_data = lfsck_assistant_data_init(
5538 &lfsck_layout_assistant_ops,
5540 if (com->lc_data == NULL)
5541 GOTO(out, rc = -ENOMEM);
5543 struct lfsck_layout_slave_data *llsd;
5545 com->lc_ops = &lfsck_layout_slave_ops;
5546 OBD_ALLOC_PTR(llsd);
5548 GOTO(out, rc = -ENOMEM);
5550 INIT_LIST_HEAD(&llsd->llsd_seq_list);
5551 INIT_LIST_HEAD(&llsd->llsd_master_list);
5552 spin_lock_init(&llsd->llsd_lock);
5553 llsd->llsd_rb_root = RB_ROOT;
5554 rwlock_init(&llsd->llsd_rb_lock);
5555 com->lc_data = llsd;
5557 com->lc_file_size = sizeof(*lo);
5558 OBD_ALLOC(com->lc_file_ram, com->lc_file_size);
5559 if (com->lc_file_ram == NULL)
5560 GOTO(out, rc = -ENOMEM);
5562 OBD_ALLOC(com->lc_file_disk, com->lc_file_size);
5563 if (com->lc_file_disk == NULL)
5564 GOTO(out, rc = -ENOMEM);
5566 root = dt_locate(env, lfsck->li_bottom, &lfsck->li_local_root_fid);
5568 GOTO(out, rc = PTR_ERR(root));
5570 if (unlikely(!dt_try_as_dir(env, root)))
5571 GOTO(out, rc = -ENOTDIR);
5573 obj = local_file_find_or_create(env, lfsck->li_los, root,
5575 S_IFREG | S_IRUGO | S_IWUSR);
5577 GOTO(out, rc = PTR_ERR(obj));
5580 rc = lfsck_layout_load(env, com);
5582 rc = lfsck_layout_reset(env, com, true);
5583 else if (rc == -ENOENT)
5584 rc = lfsck_layout_init(env, com);
5589 lo = com->lc_file_ram;
5590 switch (lo->ll_status) {
5596 spin_lock(&lfsck->li_lock);
5597 list_add_tail(&com->lc_link, &lfsck->li_list_idle);
5598 spin_unlock(&lfsck->li_lock);
5601 CERROR("%s: unknown lfsck_layout status %d\n",
5602 lfsck_lfsck2name(lfsck), lo->ll_status);
5604 case LS_SCANNING_PHASE1:
5605 case LS_SCANNING_PHASE2:
5606 /* No need to store the status to disk right now.
5607 * If the system crashed before the status stored,
5608 * it will be loaded back when next time. */
5609 lo->ll_status = LS_CRASHED;
5610 if (!lfsck->li_master)
5611 lo->ll_flags |= LF_INCOMPLETE;
5618 spin_lock(&lfsck->li_lock);
5619 list_add_tail(&com->lc_link, &lfsck->li_list_scan);
5620 spin_unlock(&lfsck->li_lock);
5624 if (lo->ll_flags & LF_CRASHED_LASTID) {
5625 LASSERT(lfsck->li_out_notify != NULL);
5627 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
5628 LE_LASTID_REBUILDING);
5634 if (root != NULL && !IS_ERR(root))
5635 lfsck_object_put(env, root);
5638 lfsck_component_cleanup(env, com);
5639 CERROR("%s: fail to init layout LFSCK component: rc = %d\n",
5640 lfsck_lfsck2name(lfsck), rc);
5646 struct lfsck_orphan_it {
5647 struct lfsck_component *loi_com;
5648 struct lfsck_rbtree_node *loi_lrn;
5649 struct lfsck_layout_slave_target *loi_llst;
5650 struct lu_fid loi_key;
5651 struct lu_orphan_rec loi_rec;
5653 unsigned int loi_over:1;
5656 static int lfsck_fid_match_idx(const struct lu_env *env,
5657 struct lfsck_instance *lfsck,
5658 const struct lu_fid *fid, int idx)
5660 struct seq_server_site *ss;
5661 struct lu_server_fld *sf;
5662 struct lu_seq_range *range = &lfsck_env_info(env)->lti_range;
5665 /* All abnormal cases will be returned to MDT0. */
5666 if (!fid_is_norm(fid)) {
5673 ss = lfsck_dev_site(lfsck);
5674 if (unlikely(ss == NULL))
5677 sf = ss->ss_server_fld;
5678 LASSERT(sf != NULL);
5680 fld_range_set_any(range);
5681 rc = fld_server_lookup(env, sf, fid_seq(fid), range);
5685 if (!fld_range_is_mdt(range))
5688 if (range->lsr_index == idx)
5694 static void lfsck_layout_destroy_orphan(const struct lu_env *env,
5695 struct dt_object *obj)
5697 struct dt_device *dev = lfsck_obj2dev(obj);
5698 struct thandle *handle;
5702 handle = dt_trans_create(env, dev);
5706 rc = dt_declare_ref_del(env, obj, handle);
5710 rc = dt_declare_destroy(env, obj, handle);
5714 rc = dt_trans_start_local(env, dev, handle);
5718 dt_write_lock(env, obj, 0);
5719 rc = dt_ref_del(env, obj, handle);
5721 rc = dt_destroy(env, obj, handle);
5722 dt_write_unlock(env, obj);
5727 dt_trans_stop(env, dev, handle);
5729 CDEBUG(D_LFSCK, "destroy orphan OST-object "DFID": rc = %d\n",
5730 PFID(lfsck_dto2fid(obj)), rc);
5735 static int lfsck_orphan_index_lookup(const struct lu_env *env,
5736 struct dt_object *dt,
5738 const struct dt_key *key,
5739 struct lustre_capa *capa)
5744 static int lfsck_orphan_index_declare_insert(const struct lu_env *env,
5745 struct dt_object *dt,
5746 const struct dt_rec *rec,
5747 const struct dt_key *key,
5748 struct thandle *handle)
5753 static int lfsck_orphan_index_insert(const struct lu_env *env,
5754 struct dt_object *dt,
5755 const struct dt_rec *rec,
5756 const struct dt_key *key,
5757 struct thandle *handle,
5758 struct lustre_capa *capa,
5764 static int lfsck_orphan_index_declare_delete(const struct lu_env *env,
5765 struct dt_object *dt,
5766 const struct dt_key *key,
5767 struct thandle *handle)
5772 static int lfsck_orphan_index_delete(const struct lu_env *env,
5773 struct dt_object *dt,
5774 const struct dt_key *key,
5775 struct thandle *handle,
5776 struct lustre_capa *capa)
5781 static struct dt_it *lfsck_orphan_it_init(const struct lu_env *env,
5782 struct dt_object *dt,
5784 struct lustre_capa *capa)
5786 struct dt_device *dev = lu2dt_dev(dt->do_lu.lo_dev);
5787 struct lfsck_instance *lfsck;
5788 struct lfsck_component *com = NULL;
5789 struct lfsck_layout_slave_data *llsd;
5790 struct lfsck_orphan_it *it = NULL;
5791 struct lfsck_layout *lo;
5795 lfsck = lfsck_instance_find(dev, true, false);
5796 if (unlikely(lfsck == NULL))
5797 RETURN(ERR_PTR(-ENXIO));
5799 com = lfsck_component_find(lfsck, LFSCK_TYPE_LAYOUT);
5800 if (unlikely(com == NULL))
5801 GOTO(out, rc = -ENOENT);
5803 lo = com->lc_file_ram;
5804 if (lo->ll_flags & LF_INCOMPLETE)
5805 GOTO(out, rc = -ESRCH);
5807 llsd = com->lc_data;
5808 if (!llsd->llsd_rbtree_valid)
5809 GOTO(out, rc = -ESRCH);
5813 GOTO(out, rc = -ENOMEM);
5815 it->loi_llst = lfsck_layout_llst_find_and_del(llsd, attr, false);
5816 if (it->loi_llst == NULL)
5817 GOTO(out, rc = -ENXIO);
5819 if (dev->dd_record_fid_accessed) {
5820 /* The first iteration against the rbtree, scan the whole rbtree
5821 * to remove the nodes which do NOT need to be handled. */
5822 write_lock(&llsd->llsd_rb_lock);
5823 if (dev->dd_record_fid_accessed) {
5824 struct rb_node *node;
5825 struct rb_node *next;
5826 struct lfsck_rbtree_node *lrn;
5828 /* No need to record the fid accessing anymore. */
5829 dev->dd_record_fid_accessed = 0;
5831 node = rb_first(&llsd->llsd_rb_root);
5832 while (node != NULL) {
5833 next = rb_next(node);
5834 lrn = rb_entry(node, struct lfsck_rbtree_node,
5836 if (atomic_read(&lrn->lrn_known_count) <=
5837 atomic_read(&lrn->lrn_accessed_count)) {
5838 rb_erase(node, &llsd->llsd_rb_root);
5839 lfsck_rbtree_free(lrn);
5844 write_unlock(&llsd->llsd_rb_lock);
5847 /* read lock the rbtree when init, and unlock when fini */
5848 read_lock(&llsd->llsd_rb_lock);
5856 lfsck_component_put(env, com);
5858 CDEBUG(D_LFSCK, "%s: init the orphan iteration: rc = %d\n",
5859 lfsck_lfsck2name(lfsck), rc);
5861 lfsck_instance_put(env, lfsck);
5866 it = (struct lfsck_orphan_it *)ERR_PTR(rc);
5869 return (struct dt_it *)it;
5872 static void lfsck_orphan_it_fini(const struct lu_env *env,
5875 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5876 struct lfsck_component *com = it->loi_com;
5877 struct lfsck_layout_slave_data *llsd;
5878 struct lfsck_layout_slave_target *llst;
5881 CDEBUG(D_LFSCK, "%s: fini the orphan iteration\n",
5882 lfsck_lfsck2name(com->lc_lfsck));
5884 llsd = com->lc_data;
5885 read_unlock(&llsd->llsd_rb_lock);
5886 llst = it->loi_llst;
5887 LASSERT(llst != NULL);
5889 /* Save the key and hash for iterate next. */
5890 llst->llst_fid = it->loi_key;
5891 llst->llst_hash = it->loi_hash;
5892 lfsck_layout_llst_put(llst);
5893 lfsck_component_put(env, com);
5899 * \retval +1: the iteration finished
5900 * \retval 0: on success, not finished
5901 * \retval -ve: on error
5903 static int lfsck_orphan_it_next(const struct lu_env *env,
5906 struct lfsck_thread_info *info = lfsck_env_info(env);
5907 struct filter_fid_old *pfid = &info->lti_old_pfid;
5908 struct lu_attr *la = &info->lti_la;
5909 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5910 struct lu_fid *key = &it->loi_key;
5911 struct lu_orphan_rec *rec = &it->loi_rec;
5912 struct lfsck_component *com = it->loi_com;
5913 struct lfsck_instance *lfsck = com->lc_lfsck;
5914 struct lfsck_layout_slave_data *llsd = com->lc_data;
5915 struct dt_object *obj;
5916 struct lfsck_rbtree_node *lrn;
5920 __u32 idx = it->loi_llst->llst_index;
5930 lrn = lfsck_rbtree_search(llsd, key, &exact);
5938 key->f_seq = lrn->lrn_seq;
5939 key->f_oid = lrn->lrn_first_oid;
5944 if (unlikely(key->f_oid == 0)) {
5951 lrn->lrn_first_oid + LFSCK_RBTREE_BITMAP_WIDTH) {
5957 if (unlikely(atomic_read(&lrn->lrn_known_count) <=
5958 atomic_read(&lrn->lrn_accessed_count))) {
5959 struct rb_node *next = rb_next(&lrn->lrn_node);
5961 while (next != NULL) {
5962 lrn = rb_entry(next, struct lfsck_rbtree_node,
5964 if (atomic_read(&lrn->lrn_known_count) >
5965 atomic_read(&lrn->lrn_accessed_count))
5967 next = rb_next(next);
5976 key->f_seq = lrn->lrn_seq;
5977 key->f_oid = lrn->lrn_first_oid;
5981 pos = key->f_oid - lrn->lrn_first_oid;
5984 pos = find_next_bit(lrn->lrn_known_bitmap,
5985 LFSCK_RBTREE_BITMAP_WIDTH, pos);
5986 if (pos >= LFSCK_RBTREE_BITMAP_WIDTH) {
5987 key->f_oid = lrn->lrn_first_oid + pos;
5988 if (unlikely(key->f_oid < lrn->lrn_first_oid)) {
5996 if (test_bit(pos, lrn->lrn_accessed_bitmap)) {
6001 key->f_oid = lrn->lrn_first_oid + pos;
6002 obj = lfsck_object_find_bottom(env, lfsck, key);
6005 if (rc == -ENOENT) {
6012 dt_read_lock(env, obj, 0);
6013 if (dt_object_exists(obj) == 0 ||
6014 lfsck_is_dead_obj(obj)) {
6015 dt_read_unlock(env, obj);
6016 lfsck_object_put(env, obj);
6021 rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
6025 rc = dt_xattr_get(env, obj, lfsck_buf_get(env, pfid, sizeof(*pfid)),
6026 XATTR_NAME_FID, BYPASS_CAPA);
6027 if (rc == -ENODATA) {
6028 /* For the pre-created OST-object, update the bitmap to avoid
6029 * others LFSCK (second phase) iteration to touch it again. */
6030 if (la->la_ctime == 0) {
6031 if (!test_and_set_bit(pos, lrn->lrn_accessed_bitmap))
6032 atomic_inc(&lrn->lrn_accessed_count);
6034 /* For the race between repairing dangling referenced
6035 * MDT-object and unlink the file, it may left orphan
6036 * OST-object there. Destroy it now! */
6037 if (unlikely(!(la->la_mode & S_ISUID))) {
6038 dt_read_unlock(env, obj);
6039 lfsck_layout_destroy_orphan(env, obj);
6040 lfsck_object_put(env, obj);
6044 } else if (idx == 0) {
6045 /* If the orphan OST-object has no parent information,
6046 * regard it as referenced by the MDT-object on MDT0. */
6047 fid_zero(&rec->lor_fid);
6048 rec->lor_uid = la->la_uid;
6049 rec->lor_gid = la->la_gid;
6053 dt_read_unlock(env, obj);
6054 lfsck_object_put(env, obj);
6062 if (rc != sizeof(struct filter_fid) &&
6063 rc != sizeof(struct filter_fid_old))
6064 GOTO(out, rc = -EINVAL);
6066 fid_le_to_cpu(&rec->lor_fid, &pfid->ff_parent);
6067 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
6068 * MDT-object's FID::f_ver, instead it is the OST-object index in its
6069 * parent MDT-object's layout EA. */
6070 save = rec->lor_fid.f_stripe_idx;
6071 rec->lor_fid.f_ver = 0;
6072 rc = lfsck_fid_match_idx(env, lfsck, &rec->lor_fid, idx);
6073 /* If the orphan OST-object does not claim the MDT, then next.
6075 * If we do not know whether it matches or not, then return it
6076 * to the MDT for further check. */
6078 dt_read_unlock(env, obj);
6079 lfsck_object_put(env, obj);
6084 rec->lor_fid.f_stripe_idx = save;
6085 rec->lor_uid = la->la_uid;
6086 rec->lor_gid = la->la_gid;
6088 CDEBUG(D_LFSCK, "%s: return orphan "DFID", PFID "DFID", owner %u:%u\n",
6089 lfsck_lfsck2name(com->lc_lfsck), PFID(key), PFID(&rec->lor_fid),
6090 rec->lor_uid, rec->lor_gid);
6095 dt_read_unlock(env, obj);
6096 lfsck_object_put(env, obj);
6104 * \retval +1: locate to the exactly position
6105 * \retval 0: cannot locate to the exactly position,
6106 * call next() to move to a valid position.
6107 * \retval -ve: on error
6109 static int lfsck_orphan_it_get(const struct lu_env *env,
6111 const struct dt_key *key)
6113 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
6116 it->loi_key = *(struct lu_fid *)key;
6117 rc = lfsck_orphan_it_next(env, di);
6127 static void lfsck_orphan_it_put(const struct lu_env *env,
6132 static struct dt_key *lfsck_orphan_it_key(const struct lu_env *env,
6133 const struct dt_it *di)
6135 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
6137 return (struct dt_key *)&it->loi_key;
6140 static int lfsck_orphan_it_key_size(const struct lu_env *env,
6141 const struct dt_it *di)
6143 return sizeof(struct lu_fid);
6146 static int lfsck_orphan_it_rec(const struct lu_env *env,
6147 const struct dt_it *di,
6151 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
6153 *(struct lu_orphan_rec *)rec = it->loi_rec;
6158 static __u64 lfsck_orphan_it_store(const struct lu_env *env,
6159 const struct dt_it *di)
6161 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
6163 return it->loi_hash;
6167 * \retval +1: locate to the exactly position
6168 * \retval 0: cannot locate to the exactly position,
6169 * call next() to move to a valid position.
6170 * \retval -ve: on error
6172 static int lfsck_orphan_it_load(const struct lu_env *env,
6173 const struct dt_it *di,
6176 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
6177 struct lfsck_layout_slave_target *llst = it->loi_llst;
6180 LASSERT(llst != NULL);
6182 if (hash != llst->llst_hash) {
6183 CDEBUG(D_LFSCK, "%s: the given hash "LPU64" for orphan "
6184 "iteration does not match the one when fini "
6185 LPU64", to be reset.\n",
6186 lfsck_lfsck2name(it->loi_com->lc_lfsck), hash,
6188 fid_zero(&llst->llst_fid);
6189 llst->llst_hash = 0;
6192 it->loi_key = llst->llst_fid;
6193 it->loi_hash = llst->llst_hash;
6194 rc = lfsck_orphan_it_next(env, (struct dt_it *)di);
6204 static int lfsck_orphan_it_key_rec(const struct lu_env *env,
6205 const struct dt_it *di,
6211 const struct dt_index_operations lfsck_orphan_index_ops = {
6212 .dio_lookup = lfsck_orphan_index_lookup,
6213 .dio_declare_insert = lfsck_orphan_index_declare_insert,
6214 .dio_insert = lfsck_orphan_index_insert,
6215 .dio_declare_delete = lfsck_orphan_index_declare_delete,
6216 .dio_delete = lfsck_orphan_index_delete,
6218 .init = lfsck_orphan_it_init,
6219 .fini = lfsck_orphan_it_fini,
6220 .get = lfsck_orphan_it_get,
6221 .put = lfsck_orphan_it_put,
6222 .next = lfsck_orphan_it_next,
6223 .key = lfsck_orphan_it_key,
6224 .key_size = lfsck_orphan_it_key_size,
6225 .rec = lfsck_orphan_it_rec,
6226 .store = lfsck_orphan_it_store,
6227 .load = lfsck_orphan_it_load,
6228 .key_rec = lfsck_orphan_it_key_rec,