4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License version 2 for more details. A copy is
14 * included in the COPYING file that accompanied this code.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Copyright (c) 2013, Intel Corporation.
26 * lustre/lfsck/lfsck_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_linkea.h>
43 #include <lustre_fid.h>
44 #include <lustre_lib.h>
45 #include <lustre_net.h>
46 #include <lustre/lustre_user.h>
47 #include <md_object.h>
48 #include <obd_class.h>
50 #include "lfsck_internal.h"
52 #define LFSCK_LAYOUT_MAGIC 0xB173AE14
54 static const char lfsck_layout_name[] = "lfsck_layout";
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 dt_object *llo_obj;
93 struct lu_attr llo_attr;
98 struct lfsck_layout_req {
99 struct list_head llr_list;
100 struct lfsck_layout_object *llr_parent;
101 struct dt_object *llr_child;
103 __u32 llr_lov_idx; /* offset in LOV EA */
106 struct lfsck_layout_master_data {
107 spinlock_t llmd_lock;
108 struct list_head llmd_req_list;
110 /* list for the ost targets involve layout verification. */
111 struct list_head llmd_ost_list;
113 /* list for the ost targets in phase1 scanning. */
114 struct list_head llmd_ost_phase1_list;
116 /* list for the ost targets in phase1 scanning. */
117 struct list_head llmd_ost_phase2_list;
119 /* list for the mdt targets involve layout verification. */
120 struct list_head llmd_mdt_list;
122 /* list for the mdt targets in phase1 scanning. */
123 struct list_head llmd_mdt_phase1_list;
125 /* list for the mdt targets in phase1 scanning. */
126 struct list_head llmd_mdt_phase2_list;
128 struct ptlrpc_thread llmd_thread;
129 __u32 llmd_touch_gen;
131 int llmd_assistant_status;
132 int llmd_post_result;
133 unsigned int llmd_to_post:1,
134 llmd_to_double_scan:1,
135 llmd_in_double_scan:1,
139 struct lfsck_layout_slave_async_args {
140 struct obd_export *llsaa_exp;
141 struct lfsck_component *llsaa_com;
142 struct lfsck_layout_slave_target *llsaa_llst;
145 static struct lfsck_layout_object *
146 lfsck_layout_object_init(const struct lu_env *env, struct dt_object *obj,
149 struct lfsck_layout_object *llo;
154 return ERR_PTR(-ENOMEM);
156 rc = dt_attr_get(env, obj, &llo->llo_attr, BYPASS_CAPA);
163 lu_object_get(&obj->do_lu);
165 /* The gen can be used to check whether some others have changed the
166 * file layout after LFSCK pre-fetching but before real verification. */
168 atomic_set(&llo->llo_ref, 1);
174 lfsck_layout_llst_put(struct lfsck_layout_slave_target *llst)
176 if (atomic_dec_and_test(&llst->llst_ref)) {
177 LASSERT(list_empty(&llst->llst_list));
184 lfsck_layout_llst_add(struct lfsck_layout_slave_data *llsd, __u32 index)
186 struct lfsck_layout_slave_target *llst;
187 struct lfsck_layout_slave_target *tmp;
194 INIT_LIST_HEAD(&llst->llst_list);
196 llst->llst_index = index;
197 atomic_set(&llst->llst_ref, 1);
199 spin_lock(&llsd->llsd_lock);
200 list_for_each_entry(tmp, &llsd->llsd_master_list, llst_list) {
201 if (tmp->llst_index == index) {
207 list_add_tail(&llst->llst_list, &llsd->llsd_master_list);
208 spin_unlock(&llsd->llsd_lock);
217 lfsck_layout_llst_del(struct lfsck_layout_slave_data *llsd,
218 struct lfsck_layout_slave_target *llst)
222 spin_lock(&llsd->llsd_lock);
223 if (!list_empty(&llst->llst_list)) {
224 list_del_init(&llst->llst_list);
227 spin_unlock(&llsd->llsd_lock);
230 lfsck_layout_llst_put(llst);
233 static inline struct lfsck_layout_slave_target *
234 lfsck_layout_llst_find_and_del(struct lfsck_layout_slave_data *llsd,
235 __u32 index, bool unlink)
237 struct lfsck_layout_slave_target *llst;
239 spin_lock(&llsd->llsd_lock);
240 list_for_each_entry(llst, &llsd->llsd_master_list, llst_list) {
241 if (llst->llst_index == index) {
243 list_del_init(&llst->llst_list);
245 atomic_inc(&llst->llst_ref);
246 spin_unlock(&llsd->llsd_lock);
251 spin_unlock(&llsd->llsd_lock);
256 static inline void lfsck_layout_object_put(const struct lu_env *env,
257 struct lfsck_layout_object *llo)
259 if (atomic_dec_and_test(&llo->llo_ref)) {
260 lfsck_object_put(env, llo->llo_obj);
265 static struct lfsck_layout_req *
266 lfsck_layout_req_init(struct lfsck_layout_object *parent,
267 struct dt_object *child, __u32 ost_idx, __u32 lov_idx)
269 struct lfsck_layout_req *llr;
273 return ERR_PTR(-ENOMEM);
275 INIT_LIST_HEAD(&llr->llr_list);
276 atomic_inc(&parent->llo_ref);
277 llr->llr_parent = parent;
278 llr->llr_child = child;
279 llr->llr_ost_idx = ost_idx;
280 llr->llr_lov_idx = lov_idx;
285 static inline void lfsck_layout_req_fini(const struct lu_env *env,
286 struct lfsck_layout_req *llr)
288 lu_object_put(env, &llr->llr_child->do_lu);
289 lfsck_layout_object_put(env, llr->llr_parent);
293 static inline bool lfsck_layout_req_empty(struct lfsck_layout_master_data *llmd)
297 spin_lock(&llmd->llmd_lock);
298 if (list_empty(&llmd->llmd_req_list))
300 spin_unlock(&llmd->llmd_lock);
305 static int lfsck_layout_get_lovea(const struct lu_env *env,
306 struct dt_object *obj,
307 struct lu_buf *buf, ssize_t *buflen)
312 rc = dt_xattr_get(env, obj, buf, XATTR_NAME_LOV, BYPASS_CAPA);
314 rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_LOV,
319 lu_buf_realloc(buf, rc);
321 *buflen = buf->lb_len;
323 if (buf->lb_buf == NULL)
335 if (unlikely(buf->lb_buf == NULL)) {
336 lu_buf_alloc(buf, rc);
338 *buflen = buf->lb_len;
340 if (buf->lb_buf == NULL)
349 static int lfsck_layout_verify_header(struct lov_mds_md_v1 *lmm)
354 magic = le32_to_cpu(lmm->lmm_magic);
355 /* If magic crashed, keep it there. Sometime later, during OST-object
356 * orphan handling, if some OST-object(s) back-point to it, it can be
357 * verified and repaired. */
358 if (magic != LOV_MAGIC_V1 && magic != LOV_MAGIC_V3)
361 patten = le32_to_cpu(lmm->lmm_pattern);
362 /* XXX: currently, we only support LOV_PATTERN_RAID0. */
363 if (patten != LOV_PATTERN_RAID0)
369 #define LFSCK_RBTREE_BITMAP_SIZE PAGE_CACHE_SIZE
370 #define LFSCK_RBTREE_BITMAP_WIDTH (LFSCK_RBTREE_BITMAP_SIZE << 3)
371 #define LFSCK_RBTREE_BITMAP_MASK (LFSCK_RBTREE_BITMAP_SIZE - 1)
373 struct lfsck_rbtree_node {
374 struct rb_node lrn_node;
377 atomic_t lrn_known_count;
378 atomic_t lrn_accessed_count;
379 void *lrn_known_bitmap;
380 void *lrn_accessed_bitmap;
383 static inline int lfsck_rbtree_cmp(struct lfsck_rbtree_node *lrn,
384 __u64 seq, __u32 oid)
386 if (seq < lrn->lrn_seq)
389 if (seq > lrn->lrn_seq)
392 if (oid < lrn->lrn_first_oid)
395 if (oid >= lrn->lrn_first_oid + LFSCK_RBTREE_BITMAP_WIDTH)
401 /* The caller should hold llsd->llsd_rb_lock. */
402 static struct lfsck_rbtree_node *
403 lfsck_rbtree_search(struct lfsck_layout_slave_data *llsd,
404 const struct lu_fid *fid, bool *exact)
406 struct rb_node *node = llsd->llsd_rb_root.rb_node;
407 struct rb_node *prev = NULL;
408 struct lfsck_rbtree_node *lrn = NULL;
414 while (node != NULL) {
416 lrn = rb_entry(node, struct lfsck_rbtree_node, lrn_node);
417 rc = lfsck_rbtree_cmp(lrn, fid_seq(fid), fid_oid(fid));
419 node = node->rb_left;
421 node = node->rb_right;
429 /* If there is no exactly matched one, then to the next valid one. */
432 /* The rbtree is empty. */
439 node = rb_next(prev);
441 /* The end of the rbtree. */
445 lrn = rb_entry(node, struct lfsck_rbtree_node, lrn_node);
450 static struct lfsck_rbtree_node *lfsck_rbtree_new(const struct lu_env *env,
451 const struct lu_fid *fid)
453 struct lfsck_rbtree_node *lrn;
457 return ERR_PTR(-ENOMEM);
459 OBD_ALLOC(lrn->lrn_known_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
460 if (lrn->lrn_known_bitmap == NULL) {
463 return ERR_PTR(-ENOMEM);
466 OBD_ALLOC(lrn->lrn_accessed_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
467 if (lrn->lrn_accessed_bitmap == NULL) {
468 OBD_FREE(lrn->lrn_known_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
471 return ERR_PTR(-ENOMEM);
474 rb_init_node(&lrn->lrn_node);
475 lrn->lrn_seq = fid_seq(fid);
476 lrn->lrn_first_oid = fid_oid(fid) & ~LFSCK_RBTREE_BITMAP_MASK;
477 atomic_set(&lrn->lrn_known_count, 0);
478 atomic_set(&lrn->lrn_accessed_count, 0);
483 static void lfsck_rbtree_free(struct lfsck_rbtree_node *lrn)
485 OBD_FREE(lrn->lrn_accessed_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
486 OBD_FREE(lrn->lrn_known_bitmap, LFSCK_RBTREE_BITMAP_SIZE);
490 /* The caller should hold lock. */
491 static struct lfsck_rbtree_node *
492 lfsck_rbtree_insert(struct lfsck_layout_slave_data *llsd,
493 struct lfsck_rbtree_node *lrn)
495 struct rb_node **pos = &(llsd->llsd_rb_root.rb_node);
496 struct rb_node *parent = NULL;
497 struct lfsck_rbtree_node *tmp;
502 tmp = rb_entry(*pos, struct lfsck_rbtree_node, lrn_node);
503 rc = lfsck_rbtree_cmp(tmp, lrn->lrn_seq, lrn->lrn_first_oid);
505 pos = &((*pos)->rb_left);
507 pos = &((*pos)->rb_right);
512 rb_link_node(&lrn->lrn_node, parent, pos);
513 rb_insert_color(&lrn->lrn_node, &llsd->llsd_rb_root);
518 extern const struct dt_index_operations lfsck_orphan_index_ops;
520 static int lfsck_rbtree_setup(const struct lu_env *env,
521 struct lfsck_component *com)
523 struct lu_fid *fid = &lfsck_env_info(env)->lti_fid;
524 struct lfsck_instance *lfsck = com->lc_lfsck;
525 struct dt_device *dev = lfsck->li_bottom;
526 struct lfsck_layout_slave_data *llsd = com->lc_data;
527 struct dt_object *obj;
529 fid->f_seq = FID_SEQ_LAYOUT_RBTREE;
530 fid->f_oid = lfsck_dev_idx(dev);
532 obj = dt_locate(env, dev, fid);
534 RETURN(PTR_ERR(obj));
536 /* Generate an in-RAM object to stand for the layout rbtree.
537 * Scanning the layout rbtree will be via the iteration over
538 * the object. In the future, the rbtree may be written onto
539 * disk with the object.
541 * Mark the object to be as exist. */
542 obj->do_lu.lo_header->loh_attr |= LOHA_EXISTS;
543 obj->do_index_ops = &lfsck_orphan_index_ops;
544 llsd->llsd_rb_obj = obj;
545 llsd->llsd_rbtree_valid = 1;
546 dev->dd_record_fid_accessed = 1;
551 static void lfsck_rbtree_cleanup(const struct lu_env *env,
552 struct lfsck_component *com)
554 struct lfsck_instance *lfsck = com->lc_lfsck;
555 struct lfsck_layout_slave_data *llsd = com->lc_data;
556 struct rb_node *node = rb_first(&llsd->llsd_rb_root);
557 struct rb_node *next;
558 struct lfsck_rbtree_node *lrn;
560 lfsck->li_bottom->dd_record_fid_accessed = 0;
561 /* Invalid the rbtree, then no others will use it. */
562 write_lock(&llsd->llsd_rb_lock);
563 llsd->llsd_rbtree_valid = 0;
564 write_unlock(&llsd->llsd_rb_lock);
566 while (node != NULL) {
567 next = rb_next(node);
568 lrn = rb_entry(node, struct lfsck_rbtree_node, lrn_node);
569 rb_erase(node, &llsd->llsd_rb_root);
570 lfsck_rbtree_free(lrn);
574 if (llsd->llsd_rb_obj != NULL) {
575 lu_object_put(env, &llsd->llsd_rb_obj->do_lu);
576 llsd->llsd_rb_obj = NULL;
580 static void lfsck_rbtree_update_bitmap(const struct lu_env *env,
581 struct lfsck_component *com,
582 const struct lu_fid *fid,
585 struct lfsck_layout_slave_data *llsd = com->lc_data;
586 struct lfsck_rbtree_node *lrn;
592 CDEBUG(D_LFSCK, "%s: update bitmap for "DFID"\n",
593 lfsck_lfsck2name(com->lc_lfsck), PFID(fid));
595 if (unlikely(!fid_is_sane(fid) || fid_is_last_id(fid)))
598 if (!fid_is_idif(fid) && !fid_is_norm(fid))
601 read_lock(&llsd->llsd_rb_lock);
602 if (!llsd->llsd_rbtree_valid)
603 GOTO(unlock, rc = 0);
605 lrn = lfsck_rbtree_search(llsd, fid, NULL);
607 struct lfsck_rbtree_node *tmp;
611 read_unlock(&llsd->llsd_rb_lock);
612 tmp = lfsck_rbtree_new(env, fid);
614 GOTO(out, rc = PTR_ERR(tmp));
617 write_lock(&llsd->llsd_rb_lock);
618 if (!llsd->llsd_rbtree_valid) {
619 lfsck_rbtree_free(tmp);
620 GOTO(unlock, rc = 0);
623 lrn = lfsck_rbtree_insert(llsd, tmp);
625 lfsck_rbtree_free(tmp);
628 idx = fid_oid(fid) & LFSCK_RBTREE_BITMAP_MASK;
629 /* Any accessed object must be a known object. */
630 if (!test_and_set_bit(idx, lrn->lrn_known_bitmap))
631 atomic_inc(&lrn->lrn_known_count);
632 if (accessed && !test_and_set_bit(idx, lrn->lrn_accessed_bitmap))
633 atomic_inc(&lrn->lrn_accessed_count);
635 GOTO(unlock, rc = 0);
639 write_unlock(&llsd->llsd_rb_lock);
641 read_unlock(&llsd->llsd_rb_lock);
643 if (rc != 0 && accessed) {
644 struct lfsck_layout *lo = com->lc_file_ram;
646 CERROR("%s: Fail to update object accessed bitmap, will cause "
647 "incorrect LFSCK OST-object handling, so disable it to "
648 "cancel orphan handling for related device. rc = %d.\n",
649 lfsck_lfsck2name(com->lc_lfsck), rc);
650 lo->ll_flags |= LF_INCOMPLETE;
651 lfsck_rbtree_cleanup(env, com);
655 static inline bool is_dummy_lov_ost_data(struct lov_ost_data_v1 *obj)
657 if (fid_is_zero(&obj->l_ost_oi.oi_fid) &&
658 obj->l_ost_gen == 0 && obj->l_ost_idx == 0)
664 static void lfsck_layout_le_to_cpu(struct lfsck_layout *des,
665 const struct lfsck_layout *src)
669 des->ll_magic = le32_to_cpu(src->ll_magic);
670 des->ll_status = le32_to_cpu(src->ll_status);
671 des->ll_flags = le32_to_cpu(src->ll_flags);
672 des->ll_success_count = le32_to_cpu(src->ll_success_count);
673 des->ll_run_time_phase1 = le32_to_cpu(src->ll_run_time_phase1);
674 des->ll_run_time_phase2 = le32_to_cpu(src->ll_run_time_phase2);
675 des->ll_time_last_complete = le64_to_cpu(src->ll_time_last_complete);
676 des->ll_time_latest_start = le64_to_cpu(src->ll_time_latest_start);
677 des->ll_time_last_checkpoint =
678 le64_to_cpu(src->ll_time_last_checkpoint);
679 des->ll_pos_latest_start = le64_to_cpu(src->ll_pos_latest_start);
680 des->ll_pos_last_checkpoint = le64_to_cpu(src->ll_pos_last_checkpoint);
681 des->ll_pos_first_inconsistent =
682 le64_to_cpu(src->ll_pos_first_inconsistent);
683 des->ll_objs_checked_phase1 = le64_to_cpu(src->ll_objs_checked_phase1);
684 des->ll_objs_failed_phase1 = le64_to_cpu(src->ll_objs_failed_phase1);
685 des->ll_objs_checked_phase2 = le64_to_cpu(src->ll_objs_checked_phase2);
686 des->ll_objs_failed_phase2 = le64_to_cpu(src->ll_objs_failed_phase2);
687 for (i = 0; i < LLIT_MAX; i++)
688 des->ll_objs_repaired[i] =
689 le64_to_cpu(src->ll_objs_repaired[i]);
690 des->ll_objs_skipped = le64_to_cpu(src->ll_objs_skipped);
693 static void lfsck_layout_cpu_to_le(struct lfsck_layout *des,
694 const struct lfsck_layout *src)
698 des->ll_magic = cpu_to_le32(src->ll_magic);
699 des->ll_status = cpu_to_le32(src->ll_status);
700 des->ll_flags = cpu_to_le32(src->ll_flags);
701 des->ll_success_count = cpu_to_le32(src->ll_success_count);
702 des->ll_run_time_phase1 = cpu_to_le32(src->ll_run_time_phase1);
703 des->ll_run_time_phase2 = cpu_to_le32(src->ll_run_time_phase2);
704 des->ll_time_last_complete = cpu_to_le64(src->ll_time_last_complete);
705 des->ll_time_latest_start = cpu_to_le64(src->ll_time_latest_start);
706 des->ll_time_last_checkpoint =
707 cpu_to_le64(src->ll_time_last_checkpoint);
708 des->ll_pos_latest_start = cpu_to_le64(src->ll_pos_latest_start);
709 des->ll_pos_last_checkpoint = cpu_to_le64(src->ll_pos_last_checkpoint);
710 des->ll_pos_first_inconsistent =
711 cpu_to_le64(src->ll_pos_first_inconsistent);
712 des->ll_objs_checked_phase1 = cpu_to_le64(src->ll_objs_checked_phase1);
713 des->ll_objs_failed_phase1 = cpu_to_le64(src->ll_objs_failed_phase1);
714 des->ll_objs_checked_phase2 = cpu_to_le64(src->ll_objs_checked_phase2);
715 des->ll_objs_failed_phase2 = cpu_to_le64(src->ll_objs_failed_phase2);
716 for (i = 0; i < LLIT_MAX; i++)
717 des->ll_objs_repaired[i] =
718 cpu_to_le64(src->ll_objs_repaired[i]);
719 des->ll_objs_skipped = cpu_to_le64(src->ll_objs_skipped);
723 * \retval +ve: the lfsck_layout is broken, the caller should reset it.
724 * \retval 0: succeed.
725 * \retval -ve: failed cases.
727 static int lfsck_layout_load(const struct lu_env *env,
728 struct lfsck_component *com)
730 struct lfsck_layout *lo = com->lc_file_ram;
731 const struct dt_body_operations *dbo = com->lc_obj->do_body_ops;
732 ssize_t size = com->lc_file_size;
736 rc = dbo->dbo_read(env, com->lc_obj,
737 lfsck_buf_get(env, com->lc_file_disk, size), &pos,
742 CWARN("%s: failed to load lfsck_layout: rc = %d\n",
743 lfsck_lfsck2name(com->lc_lfsck), rc);
745 } else if (rc != size) {
746 CWARN("%s: crashed lfsck_layout, to be reset: rc = %d\n",
747 lfsck_lfsck2name(com->lc_lfsck), rc);
751 lfsck_layout_le_to_cpu(lo, com->lc_file_disk);
752 if (lo->ll_magic != LFSCK_LAYOUT_MAGIC) {
753 CWARN("%s: invalid lfsck_layout magic %#x != %#x, "
754 "to be reset\n", lfsck_lfsck2name(com->lc_lfsck),
755 lo->ll_magic, LFSCK_LAYOUT_MAGIC);
762 static int lfsck_layout_store(const struct lu_env *env,
763 struct lfsck_component *com)
765 struct dt_object *obj = com->lc_obj;
766 struct lfsck_instance *lfsck = com->lc_lfsck;
767 struct lfsck_layout *lo = com->lc_file_disk;
768 struct thandle *handle;
769 ssize_t size = com->lc_file_size;
774 lfsck_layout_cpu_to_le(lo, com->lc_file_ram);
775 handle = dt_trans_create(env, lfsck->li_bottom);
776 if (IS_ERR(handle)) {
777 rc = PTR_ERR(handle);
778 CERROR("%s: fail to create trans for storing lfsck_layout: "
779 "rc = %d\n", lfsck_lfsck2name(lfsck), rc);
783 rc = dt_declare_record_write(env, obj, size, pos, handle);
785 CERROR("%s: fail to declare trans for storing lfsck_layout(1): "
786 "rc = %d\n", lfsck_lfsck2name(lfsck), rc);
790 rc = dt_trans_start_local(env, lfsck->li_bottom, handle);
792 CERROR("%s: fail to start trans for storing lfsck_layout: "
793 "rc = %d\n", lfsck_lfsck2name(lfsck), rc);
797 rc = dt_record_write(env, obj, lfsck_buf_get(env, lo, size), &pos,
800 CERROR("%s: fail to store lfsck_layout(1): size = %d, "
801 "rc = %d\n", lfsck_lfsck2name(lfsck), (int)size, rc);
806 dt_trans_stop(env, lfsck->li_bottom, handle);
811 static int lfsck_layout_init(const struct lu_env *env,
812 struct lfsck_component *com)
814 struct lfsck_layout *lo = com->lc_file_ram;
817 memset(lo, 0, com->lc_file_size);
818 lo->ll_magic = LFSCK_LAYOUT_MAGIC;
819 lo->ll_status = LS_INIT;
820 down_write(&com->lc_sem);
821 rc = lfsck_layout_store(env, com);
822 up_write(&com->lc_sem);
827 static int fid_is_for_ostobj(const struct lu_env *env, struct dt_device *dt,
828 struct dt_object *obj, const struct lu_fid *fid)
830 struct seq_server_site *ss = lu_site2seq(dt->dd_lu_dev.ld_site);
831 struct lu_seq_range range = { 0 };
832 struct lustre_mdt_attrs *lma;
835 fld_range_set_any(&range);
836 rc = fld_server_lookup(env, ss->ss_server_fld, fid_seq(fid), &range);
838 if (fld_range_is_ost(&range))
844 lma = &lfsck_env_info(env)->lti_lma;
845 rc = dt_xattr_get(env, obj, lfsck_buf_get(env, lma, sizeof(*lma)),
846 XATTR_NAME_LMA, BYPASS_CAPA);
847 if (rc == sizeof(*lma)) {
848 lustre_lma_swab(lma);
850 return lma->lma_compat & LMAC_FID_ON_OST ? 1 : 0;
853 rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_FID, BYPASS_CAPA);
858 static struct lfsck_layout_seq *
859 lfsck_layout_seq_lookup(struct lfsck_layout_slave_data *llsd, __u64 seq)
861 struct lfsck_layout_seq *lls;
863 list_for_each_entry(lls, &llsd->llsd_seq_list, lls_list) {
864 if (lls->lls_seq == seq)
867 if (lls->lls_seq > seq)
875 lfsck_layout_seq_insert(struct lfsck_layout_slave_data *llsd,
876 struct lfsck_layout_seq *lls)
878 struct lfsck_layout_seq *tmp;
879 struct list_head *pos = &llsd->llsd_seq_list;
881 list_for_each_entry(tmp, &llsd->llsd_seq_list, lls_list) {
882 if (lls->lls_seq < tmp->lls_seq) {
883 pos = &tmp->lls_list;
887 list_add_tail(&lls->lls_list, pos);
891 lfsck_layout_lastid_create(const struct lu_env *env,
892 struct lfsck_instance *lfsck,
893 struct dt_object *obj)
895 struct lfsck_thread_info *info = lfsck_env_info(env);
896 struct lu_attr *la = &info->lti_la;
897 struct dt_object_format *dof = &info->lti_dof;
898 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
899 struct dt_device *dt = lfsck->li_bottom;
906 CDEBUG(D_LFSCK, "To create LAST_ID for <seq> "LPX64"\n",
907 fid_seq(lfsck_dto2fid(obj)));
909 if (bk->lb_param & LPF_DRYRUN)
912 memset(la, 0, sizeof(*la));
913 la->la_mode = S_IFREG | S_IRUGO | S_IWUSR;
914 la->la_valid = LA_MODE | LA_UID | LA_GID;
915 dof->dof_type = dt_mode_to_dft(S_IFREG);
917 th = dt_trans_create(env, dt);
919 RETURN(rc = PTR_ERR(th));
921 rc = dt_declare_create(env, obj, la, NULL, dof, th);
925 rc = dt_declare_record_write(env, obj, sizeof(lastid), pos, th);
929 rc = dt_trans_start_local(env, dt, th);
933 dt_write_lock(env, obj, 0);
934 if (likely(!dt_object_exists(obj))) {
935 rc = dt_create(env, obj, la, NULL, dof, th);
937 rc = dt_record_write(env, obj,
938 lfsck_buf_get(env, &lastid, sizeof(lastid)),
941 dt_write_unlock(env, obj);
946 dt_trans_stop(env, dt, th);
952 lfsck_layout_lastid_reload(const struct lu_env *env,
953 struct lfsck_component *com,
954 struct lfsck_layout_seq *lls)
960 dt_read_lock(env, lls->lls_lastid_obj, 0);
961 rc = dt_record_read(env, lls->lls_lastid_obj,
962 lfsck_buf_get(env, &lastid, sizeof(lastid)), &pos);
963 dt_read_unlock(env, lls->lls_lastid_obj);
964 if (unlikely(rc != 0))
967 lastid = le64_to_cpu(lastid);
968 if (lastid < lls->lls_lastid_known) {
969 struct lfsck_instance *lfsck = com->lc_lfsck;
970 struct lfsck_layout *lo = com->lc_file_ram;
972 lls->lls_lastid = lls->lls_lastid_known;
974 if (!(lo->ll_flags & LF_CRASHED_LASTID)) {
975 LASSERT(lfsck->li_out_notify != NULL);
977 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
978 LE_LASTID_REBUILDING);
979 lo->ll_flags |= LF_CRASHED_LASTID;
981 } else if (lastid >= lls->lls_lastid) {
982 lls->lls_lastid = lastid;
990 lfsck_layout_lastid_store(const struct lu_env *env,
991 struct lfsck_component *com)
993 struct lfsck_instance *lfsck = com->lc_lfsck;
994 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
995 struct dt_device *dt = lfsck->li_bottom;
996 struct lfsck_layout_slave_data *llsd = com->lc_data;
997 struct lfsck_layout_seq *lls;
1003 list_for_each_entry(lls, &llsd->llsd_seq_list, lls_list) {
1006 /* XXX: Add the code back if we really found related
1007 * inconsistent cases in the future. */
1009 if (!lls->lls_dirty) {
1010 /* In OFD, before the pre-creation, the LAST_ID
1011 * file will be updated firstly, which may hide
1012 * some potential crashed cases. For example:
1014 * The old obj1's ID is higher than old LAST_ID
1015 * but lower than the new LAST_ID, but the LFSCK
1016 * have not touch the obj1 until the OFD updated
1017 * the LAST_ID. So the LFSCK does not regard it
1018 * as crashed case. But when OFD does not create
1019 * successfully, it will set the LAST_ID as the
1020 * real created objects' ID, then LFSCK needs to
1021 * found related inconsistency. */
1022 rc = lfsck_layout_lastid_reload(env, com, lls);
1023 if (likely(!lls->lls_dirty))
1028 CDEBUG(D_LFSCK, "To sync the LAST_ID for <seq> "LPX64
1029 " as <oid> "LPU64"\n", lls->lls_seq, lls->lls_lastid);
1031 if (bk->lb_param & LPF_DRYRUN) {
1036 th = dt_trans_create(env, dt);
1039 CERROR("%s: (1) failed to store "LPX64": rc = %d\n",
1040 lfsck_lfsck2name(com->lc_lfsck),
1045 rc = dt_declare_record_write(env, lls->lls_lastid_obj,
1046 sizeof(lastid), pos, th);
1050 rc = dt_trans_start_local(env, dt, th);
1054 lastid = cpu_to_le64(lls->lls_lastid);
1055 dt_write_lock(env, lls->lls_lastid_obj, 0);
1056 rc = dt_record_write(env, lls->lls_lastid_obj,
1057 lfsck_buf_get(env, &lastid,
1058 sizeof(lastid)), &pos, th);
1059 dt_write_unlock(env, lls->lls_lastid_obj);
1064 dt_trans_stop(env, dt, th);
1067 CERROR("%s: (2) failed to store "LPX64": rc = %d\n",
1068 lfsck_lfsck2name(com->lc_lfsck),
1077 lfsck_layout_lastid_load(const struct lu_env *env,
1078 struct lfsck_component *com,
1079 struct lfsck_layout_seq *lls)
1081 struct lfsck_instance *lfsck = com->lc_lfsck;
1082 struct lfsck_layout *lo = com->lc_file_ram;
1083 struct lu_fid *fid = &lfsck_env_info(env)->lti_fid;
1084 struct dt_object *obj;
1089 lu_last_id_fid(fid, lls->lls_seq, lfsck_dev_idx(lfsck->li_bottom));
1090 obj = dt_locate(env, lfsck->li_bottom, fid);
1092 RETURN(PTR_ERR(obj));
1094 /* LAST_ID crashed, to be rebuilt */
1095 if (!dt_object_exists(obj)) {
1096 if (!(lo->ll_flags & LF_CRASHED_LASTID)) {
1097 LASSERT(lfsck->li_out_notify != NULL);
1099 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
1100 LE_LASTID_REBUILDING);
1101 lo->ll_flags |= LF_CRASHED_LASTID;
1103 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY4) &&
1105 struct l_wait_info lwi = LWI_TIMEOUT(
1106 cfs_time_seconds(cfs_fail_val),
1109 up_write(&com->lc_sem);
1110 l_wait_event(lfsck->li_thread.t_ctl_waitq,
1111 !thread_is_running(&lfsck->li_thread),
1113 down_write(&com->lc_sem);
1117 rc = lfsck_layout_lastid_create(env, lfsck, obj);
1119 dt_read_lock(env, obj, 0);
1120 rc = dt_read(env, obj,
1121 lfsck_buf_get(env, &lls->lls_lastid, sizeof(__u64)),
1123 dt_read_unlock(env, obj);
1124 if (rc != 0 && rc != sizeof(__u64))
1125 GOTO(out, rc = (rc > 0 ? -EFAULT : rc));
1127 if (rc == 0 && !(lo->ll_flags & LF_CRASHED_LASTID)) {
1128 LASSERT(lfsck->li_out_notify != NULL);
1130 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
1131 LE_LASTID_REBUILDING);
1132 lo->ll_flags |= LF_CRASHED_LASTID;
1135 lls->lls_lastid = le64_to_cpu(lls->lls_lastid);
1143 lfsck_object_put(env, obj);
1145 lls->lls_lastid_obj = obj;
1150 static int lfsck_layout_master_async_interpret(const struct lu_env *env,
1151 struct ptlrpc_request *req,
1154 struct lfsck_async_interpret_args *laia = args;
1155 struct lfsck_component *com = laia->laia_com;
1156 struct lfsck_layout_master_data *llmd = com->lc_data;
1157 struct lfsck_tgt_descs *ltds = laia->laia_ltds;
1158 struct lfsck_tgt_desc *ltd = laia->laia_ltd;
1159 struct lfsck_request *lr = laia->laia_lr;
1161 switch (lr->lr_event) {
1164 struct lfsck_layout *lo = com->lc_file_ram;
1166 CERROR("%s: fail to notify %s %x for layout start: "
1167 "rc = %d\n", lfsck_lfsck2name(com->lc_lfsck),
1168 (lr->lr_flags & LEF_TO_OST) ? "OST" : "MDT",
1169 ltd->ltd_index, rc);
1170 lo->ll_flags |= LF_INCOMPLETE;
1174 spin_lock(<ds->ltd_lock);
1175 if (ltd->ltd_dead || ltd->ltd_layout_done) {
1176 spin_unlock(<ds->ltd_lock);
1180 if (lr->lr_flags & LEF_TO_OST) {
1181 if (list_empty(<d->ltd_layout_list))
1182 list_add_tail(<d->ltd_layout_list,
1183 &llmd->llmd_ost_list);
1184 if (list_empty(<d->ltd_layout_phase_list))
1185 list_add_tail(<d->ltd_layout_phase_list,
1186 &llmd->llmd_ost_phase1_list);
1188 if (list_empty(<d->ltd_layout_list))
1189 list_add_tail(<d->ltd_layout_list,
1190 &llmd->llmd_mdt_list);
1191 if (list_empty(<d->ltd_layout_phase_list))
1192 list_add_tail(<d->ltd_layout_phase_list,
1193 &llmd->llmd_mdt_phase1_list);
1195 spin_unlock(<ds->ltd_lock);
1198 case LE_PHASE1_DONE:
1199 case LE_PHASE2_DONE:
1201 if (rc != 0 && rc != -EALREADY)
1202 CWARN("%s: fail to notify %s %x for layout: "
1203 "event = %d, rc = %d\n",
1204 lfsck_lfsck2name(com->lc_lfsck),
1205 (lr->lr_flags & LEF_TO_OST) ? "OST" : "MDT",
1206 ltd->ltd_index, lr->lr_event, rc);
1209 struct lfsck_reply *reply;
1212 spin_lock(<ds->ltd_lock);
1213 list_del_init(<d->ltd_layout_phase_list);
1214 list_del_init(<d->ltd_layout_list);
1215 spin_unlock(<ds->ltd_lock);
1219 reply = req_capsule_server_get(&req->rq_pill,
1221 if (reply == NULL) {
1223 CERROR("%s: invalid return value: rc = %d\n",
1224 lfsck_lfsck2name(com->lc_lfsck), rc);
1225 spin_lock(<ds->ltd_lock);
1226 list_del_init(<d->ltd_layout_phase_list);
1227 list_del_init(<d->ltd_layout_list);
1228 spin_unlock(<ds->ltd_lock);
1232 switch (reply->lr_status) {
1233 case LS_SCANNING_PHASE1:
1235 case LS_SCANNING_PHASE2:
1236 spin_lock(<ds->ltd_lock);
1237 list_del_init(<d->ltd_layout_phase_list);
1238 if (ltd->ltd_dead || ltd->ltd_layout_done) {
1239 spin_unlock(<ds->ltd_lock);
1243 if (lr->lr_flags & LEF_TO_OST)
1244 list_add_tail(<d->ltd_layout_phase_list,
1245 &llmd->llmd_ost_phase2_list);
1247 list_add_tail(<d->ltd_layout_phase_list,
1248 &llmd->llmd_mdt_phase2_list);
1249 spin_unlock(<ds->ltd_lock);
1252 spin_lock(<ds->ltd_lock);
1253 list_del_init(<d->ltd_layout_phase_list);
1254 list_del_init(<d->ltd_layout_list);
1255 spin_unlock(<ds->ltd_lock);
1261 CERROR("%s: unexpected event: rc = %d\n",
1262 lfsck_lfsck2name(com->lc_lfsck), lr->lr_event);
1266 if (!laia->laia_shared) {
1268 lfsck_component_put(env, com);
1274 static int lfsck_layout_master_query_others(const struct lu_env *env,
1275 struct lfsck_component *com)
1277 struct lfsck_thread_info *info = lfsck_env_info(env);
1278 struct lfsck_request *lr = &info->lti_lr;
1279 struct lfsck_async_interpret_args *laia = &info->lti_laia;
1280 struct lfsck_instance *lfsck = com->lc_lfsck;
1281 struct lfsck_layout_master_data *llmd = com->lc_data;
1282 struct ptlrpc_request_set *set;
1283 struct lfsck_tgt_descs *ltds;
1284 struct lfsck_tgt_desc *ltd;
1285 struct list_head *head;
1290 set = ptlrpc_prep_set();
1294 llmd->llmd_touch_gen++;
1295 memset(lr, 0, sizeof(*lr));
1296 lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
1297 lr->lr_event = LE_QUERY;
1298 lr->lr_active = LT_LAYOUT;
1299 laia->laia_com = com;
1301 laia->laia_shared = 0;
1303 if (!list_empty(&llmd->llmd_mdt_phase1_list)) {
1304 ltds = &lfsck->li_mdt_descs;
1306 head = &llmd->llmd_mdt_phase1_list;
1310 ltds = &lfsck->li_ost_descs;
1311 lr->lr_flags = LEF_TO_OST;
1312 head = &llmd->llmd_ost_phase1_list;
1315 laia->laia_ltds = ltds;
1316 spin_lock(<ds->ltd_lock);
1317 while (!list_empty(head)) {
1318 ltd = list_entry(head->next,
1319 struct lfsck_tgt_desc,
1320 ltd_layout_phase_list);
1321 if (ltd->ltd_layout_gen == llmd->llmd_touch_gen)
1324 ltd->ltd_layout_gen = llmd->llmd_touch_gen;
1325 list_del(<d->ltd_layout_phase_list);
1326 list_add_tail(<d->ltd_layout_phase_list, head);
1327 atomic_inc(<d->ltd_ref);
1328 laia->laia_ltd = ltd;
1329 spin_unlock(<ds->ltd_lock);
1330 rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
1331 lfsck_layout_master_async_interpret,
1334 CERROR("%s: fail to query %s %x for layout: rc = %d\n",
1335 lfsck_lfsck2name(lfsck),
1336 (lr->lr_flags & LEF_TO_OST) ? "OST" : "MDT",
1337 ltd->ltd_index, rc);
1341 spin_lock(<ds->ltd_lock);
1343 spin_unlock(<ds->ltd_lock);
1345 rc = ptlrpc_set_wait(set);
1347 ptlrpc_set_destroy(set);
1351 if (!(lr->lr_flags & LEF_TO_OST) &&
1352 list_empty(&llmd->llmd_mdt_phase1_list))
1355 ptlrpc_set_destroy(set);
1357 RETURN(rc1 != 0 ? rc1 : rc);
1361 lfsck_layout_master_to_orphan(struct lfsck_layout_master_data *llmd)
1363 return list_empty(&llmd->llmd_mdt_phase1_list) &&
1364 (!list_empty(&llmd->llmd_ost_phase2_list) ||
1365 list_empty(&llmd->llmd_ost_phase1_list));
1368 static int lfsck_layout_master_notify_others(const struct lu_env *env,
1369 struct lfsck_component *com,
1370 struct lfsck_request *lr)
1372 struct lfsck_thread_info *info = lfsck_env_info(env);
1373 struct lfsck_async_interpret_args *laia = &info->lti_laia;
1374 struct lfsck_instance *lfsck = com->lc_lfsck;
1375 struct lfsck_layout_master_data *llmd = com->lc_data;
1376 struct lfsck_layout *lo = com->lc_file_ram;
1377 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
1378 struct ptlrpc_request_set *set;
1379 struct lfsck_tgt_descs *ltds;
1380 struct lfsck_tgt_desc *ltd;
1381 struct lfsck_tgt_desc *next;
1382 struct list_head *head;
1387 set = ptlrpc_prep_set();
1391 lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
1392 lr->lr_active = LT_LAYOUT;
1393 laia->laia_com = com;
1395 laia->laia_shared = 0;
1396 switch (lr->lr_event) {
1398 /* Notify OSTs firstly, then handle other MDTs if needed. */
1399 ltds = &lfsck->li_ost_descs;
1400 laia->laia_ltds = ltds;
1401 down_read(<ds->ltd_rw_sem);
1402 cfs_foreach_bit(ltds->ltd_tgts_bitmap, idx) {
1403 ltd = lfsck_tgt_get(ltds, idx);
1404 LASSERT(ltd != NULL);
1406 laia->laia_ltd = ltd;
1407 ltd->ltd_layout_done = 0;
1408 rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
1409 lfsck_layout_master_async_interpret,
1410 laia, LFSCK_NOTIFY);
1412 CERROR("%s: fail to notify %s %x for layout "
1414 lfsck_lfsck2name(lfsck),
1415 (lr->lr_flags & LEF_TO_OST) ? "OST" :
1418 lo->ll_flags |= LF_INCOMPLETE;
1421 up_read(<ds->ltd_rw_sem);
1424 rc = ptlrpc_set_wait(set);
1426 ptlrpc_set_destroy(set);
1430 if (!(bk->lb_param & LPF_ALL_TGT))
1433 /* link other MDT targets locallly. */
1434 spin_lock(<ds->ltd_lock);
1435 cfs_foreach_bit(ltds->ltd_tgts_bitmap, idx) {
1436 ltd = LTD_TGT(ltds, idx);
1437 LASSERT(ltd != NULL);
1439 if (!list_empty(<d->ltd_layout_list))
1442 list_add_tail(<d->ltd_layout_list,
1443 &llmd->llmd_mdt_list);
1444 list_add_tail(<d->ltd_layout_phase_list,
1445 &llmd->llmd_mdt_phase1_list);
1447 spin_unlock(<ds->ltd_lock);
1450 case LE_PHASE2_DONE:
1451 case LE_PEER_EXIT: {
1452 /* Handle other MDTs firstly if needed, then notify the OSTs. */
1453 if (bk->lb_param & LPF_ALL_TGT) {
1454 head = &llmd->llmd_mdt_list;
1455 ltds = &lfsck->li_mdt_descs;
1456 if (lr->lr_event == LE_STOP) {
1457 /* unlink other MDT targets locallly. */
1458 spin_lock(<ds->ltd_lock);
1459 list_for_each_entry_safe(ltd, next, head,
1461 list_del_init(<d->ltd_layout_phase_list);
1462 list_del_init(<d->ltd_layout_list);
1464 spin_unlock(<ds->ltd_lock);
1466 lr->lr_flags |= LEF_TO_OST;
1467 head = &llmd->llmd_ost_list;
1468 ltds = &lfsck->li_ost_descs;
1470 lr->lr_flags &= ~LEF_TO_OST;
1473 lr->lr_flags |= LEF_TO_OST;
1474 head = &llmd->llmd_ost_list;
1475 ltds = &lfsck->li_ost_descs;
1479 laia->laia_ltds = ltds;
1480 spin_lock(<ds->ltd_lock);
1481 while (!list_empty(head)) {
1482 ltd = list_entry(head->next, struct lfsck_tgt_desc,
1484 if (!list_empty(<d->ltd_layout_phase_list))
1485 list_del_init(<d->ltd_layout_phase_list);
1486 list_del_init(<d->ltd_layout_list);
1487 atomic_inc(<d->ltd_ref);
1488 laia->laia_ltd = ltd;
1489 spin_unlock(<ds->ltd_lock);
1490 rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
1491 lfsck_layout_master_async_interpret,
1492 laia, LFSCK_NOTIFY);
1494 CERROR("%s: fail to notify %s %x for layout "
1495 "stop/phase2: rc = %d\n",
1496 lfsck_lfsck2name(lfsck),
1497 (lr->lr_flags & LEF_TO_OST) ? "OST" :
1498 "MDT", ltd->ltd_index, rc);
1501 spin_lock(<ds->ltd_lock);
1503 spin_unlock(<ds->ltd_lock);
1505 rc = ptlrpc_set_wait(set);
1507 ptlrpc_set_destroy(set);
1511 if (!(lr->lr_flags & LEF_TO_OST)) {
1512 lr->lr_flags |= LEF_TO_OST;
1513 head = &llmd->llmd_ost_list;
1514 ltds = &lfsck->li_ost_descs;
1519 case LE_PHASE1_DONE:
1520 llmd->llmd_touch_gen++;
1521 ltds = &lfsck->li_mdt_descs;
1522 laia->laia_ltds = ltds;
1523 spin_lock(<ds->ltd_lock);
1524 while (!list_empty(&llmd->llmd_mdt_phase1_list)) {
1525 ltd = list_entry(llmd->llmd_mdt_phase1_list.next,
1526 struct lfsck_tgt_desc,
1527 ltd_layout_phase_list);
1528 if (ltd->ltd_layout_gen == llmd->llmd_touch_gen)
1531 ltd->ltd_layout_gen = llmd->llmd_touch_gen;
1532 list_del_init(<d->ltd_layout_phase_list);
1533 list_add_tail(<d->ltd_layout_phase_list,
1534 &llmd->llmd_mdt_phase1_list);
1535 atomic_inc(<d->ltd_ref);
1536 laia->laia_ltd = ltd;
1537 spin_unlock(<ds->ltd_lock);
1538 rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
1539 lfsck_layout_master_async_interpret,
1540 laia, LFSCK_NOTIFY);
1542 CERROR("%s: fail to notify MDT %x for layout "
1543 "phase1 done: rc = %d\n",
1544 lfsck_lfsck2name(lfsck),
1545 ltd->ltd_index, rc);
1548 spin_lock(<ds->ltd_lock);
1550 spin_unlock(<ds->ltd_lock);
1553 CERROR("%s: unexpected LFSCK event: rc = %d\n",
1554 lfsck_lfsck2name(lfsck), lr->lr_event);
1559 rc = ptlrpc_set_wait(set);
1560 ptlrpc_set_destroy(set);
1565 static int lfsck_layout_double_scan_result(const struct lu_env *env,
1566 struct lfsck_component *com,
1569 struct lfsck_instance *lfsck = com->lc_lfsck;
1570 struct lfsck_layout *lo = com->lc_file_ram;
1571 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
1573 down_write(&com->lc_sem);
1575 lo->ll_run_time_phase2 += cfs_duration_sec(cfs_time_current() +
1576 HALF_SEC - lfsck->li_time_last_checkpoint);
1577 lo->ll_time_last_checkpoint = cfs_time_current_sec();
1578 lo->ll_objs_checked_phase2 += com->lc_new_checked;
1581 com->lc_journal = 0;
1582 if (lo->ll_flags & LF_INCOMPLETE)
1583 lo->ll_status = LS_PARTIAL;
1585 lo->ll_status = LS_COMPLETED;
1586 if (!(bk->lb_param & LPF_DRYRUN))
1587 lo->ll_flags &= ~(LF_SCANNED_ONCE | LF_INCONSISTENT);
1588 lo->ll_time_last_complete = lo->ll_time_last_checkpoint;
1589 lo->ll_success_count++;
1590 } else if (rc == 0) {
1591 lo->ll_status = lfsck->li_status;
1592 if (lo->ll_status == 0)
1593 lo->ll_status = LS_STOPPED;
1595 lo->ll_status = LS_FAILED;
1598 if (lo->ll_status != LS_PAUSED) {
1599 spin_lock(&lfsck->li_lock);
1600 list_del_init(&com->lc_link);
1601 list_add_tail(&com->lc_link, &lfsck->li_list_idle);
1602 spin_unlock(&lfsck->li_lock);
1605 rc = lfsck_layout_store(env, com);
1607 up_write(&com->lc_sem);
1612 static int lfsck_layout_lock(const struct lu_env *env,
1613 struct lfsck_component *com,
1614 struct dt_object *obj,
1615 struct lustre_handle *lh, __u64 bits)
1617 struct lfsck_thread_info *info = lfsck_env_info(env);
1618 ldlm_policy_data_t *policy = &info->lti_policy;
1619 struct ldlm_res_id *resid = &info->lti_resid;
1620 struct lfsck_instance *lfsck = com->lc_lfsck;
1621 __u64 flags = LDLM_FL_ATOMIC_CB;
1624 LASSERT(lfsck->li_namespace != NULL);
1626 memset(policy, 0, sizeof(*policy));
1627 policy->l_inodebits.bits = bits;
1628 fid_build_reg_res_name(lfsck_dto2fid(obj), resid);
1629 rc = ldlm_cli_enqueue_local(lfsck->li_namespace, resid, LDLM_IBITS,
1630 policy, LCK_EX, &flags, ldlm_blocking_ast,
1631 ldlm_completion_ast, NULL, NULL, 0,
1632 LVB_T_NONE, NULL, lh);
1633 if (rc == ELDLM_OK) {
1636 memset(lh, 0, sizeof(*lh));
1643 static void lfsck_layout_unlock(struct lustre_handle *lh)
1645 if (lustre_handle_is_used(lh)) {
1646 ldlm_lock_decref(lh, LCK_EX);
1647 memset(lh, 0, sizeof(*lh));
1651 static int lfsck_layout_trans_stop(const struct lu_env *env,
1652 struct dt_device *dev,
1653 struct thandle *handle, int result)
1657 handle->th_result = result;
1658 rc = dt_trans_stop(env, dev, handle);
1668 * \retval +1: repaired
1669 * \retval 0: did nothing
1670 * \retval -ve: on error
1672 static int lfsck_layout_refill_lovea(const struct lu_env *env,
1673 struct thandle *handle,
1674 struct dt_object *parent,
1675 struct lu_fid *cfid,
1677 struct lov_ost_data_v1 *slot,
1678 int fl, __u32 ost_idx)
1680 struct ost_id *oi = &lfsck_env_info(env)->lti_oi;
1683 fid_to_ostid(cfid, oi);
1684 ostid_cpu_to_le(oi, &slot->l_ost_oi);
1685 slot->l_ost_gen = cpu_to_le32(0);
1686 slot->l_ost_idx = cpu_to_le32(ost_idx);
1687 rc = dt_xattr_set(env, parent, buf, XATTR_NAME_LOV, fl, handle,
1696 * \retval +1: repaired
1697 * \retval 0: did nothing
1698 * \retval -ve: on error
1700 static int lfsck_layout_extend_lovea(const struct lu_env *env,
1701 struct thandle *handle,
1702 struct dt_object *parent,
1703 struct lu_fid *cfid,
1704 struct lu_buf *buf, int fl,
1705 __u32 ost_idx, __u32 ea_off)
1707 struct lov_mds_md_v1 *lmm = buf->lb_buf;
1708 struct lov_ost_data_v1 *objs;
1712 if (fl == LU_XATTR_CREATE) {
1713 LASSERT(buf->lb_len == lov_mds_md_size(ea_off + 1,
1716 memset(lmm, 0, buf->lb_len);
1717 lmm->lmm_magic = cpu_to_le32(LOV_MAGIC_V1);
1718 /* XXX: currently, we only support LOV_PATTERN_RAID0. */
1719 lmm->lmm_pattern = cpu_to_le32(LOV_PATTERN_RAID0);
1720 fid_to_lmm_oi(lfsck_dto2fid(parent), &lmm->lmm_oi);
1721 lmm_oi_cpu_to_le(&lmm->lmm_oi, &lmm->lmm_oi);
1722 /* XXX: We cannot know the stripe size,
1723 * then use the default value (1 MB). */
1724 lmm->lmm_stripe_size = cpu_to_le32(1024 * 1024);
1725 lmm->lmm_layout_gen = cpu_to_le16(0);
1726 objs = &(lmm->lmm_objects[ea_off]);
1728 __u16 count = le16_to_cpu(lmm->lmm_stripe_count);
1729 int gap = ea_off - count;
1730 __u32 magic = le32_to_cpu(lmm->lmm_magic);
1732 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3
1733 * which has been verified in lfsck_layout_verify_header()
1734 * already. If some new magic introduced in the future,
1735 * then layout LFSCK needs to be updated also. */
1736 if (magic == LOV_MAGIC_V1) {
1737 objs = &(lmm->lmm_objects[count]);
1739 LASSERT(magic == LOV_MAGIC_V3);
1740 objs = &((struct lov_mds_md_v3 *)lmm)->
1745 memset(objs, 0, gap * sizeof(*objs));
1746 lmm->lmm_layout_gen =
1747 cpu_to_le16(le16_to_cpu(lmm->lmm_layout_gen) + 1);
1750 LASSERT(buf->lb_len == lov_mds_md_size(ea_off + 1, magic));
1753 lmm->lmm_stripe_count = cpu_to_le16(ea_off + 1);
1754 rc = lfsck_layout_refill_lovea(env, handle, parent, cfid, buf, objs,
1761 * \retval +1: repaired
1762 * \retval 0: did nothing
1763 * \retval -ve: on error
1765 static int lfsck_layout_update_pfid(const struct lu_env *env,
1766 struct lfsck_component *com,
1767 struct dt_object *parent,
1768 struct lu_fid *cfid,
1769 struct dt_device *cdev, __u32 ea_off)
1771 struct filter_fid *pfid = &lfsck_env_info(env)->lti_new_pfid;
1772 struct dt_object *child;
1773 struct thandle *handle;
1774 const struct lu_fid *tfid = lu_object_fid(&parent->do_lu);
1779 child = lfsck_object_find_by_dev(env, cdev, cfid);
1781 RETURN(PTR_ERR(child));
1783 handle = dt_trans_create(env, cdev);
1785 GOTO(out, rc = PTR_ERR(handle));
1787 pfid->ff_parent.f_seq = cpu_to_le64(tfid->f_seq);
1788 pfid->ff_parent.f_oid = cpu_to_le32(tfid->f_oid);
1789 /* In fact, the ff_parent::f_ver is not the real parent FID::f_ver,
1790 * instead, it is the OST-object index in its parent MDT-object
1792 pfid->ff_parent.f_ver = cpu_to_le32(ea_off);
1793 buf = lfsck_buf_get(env, pfid, sizeof(struct filter_fid));
1795 rc = dt_declare_xattr_set(env, child, buf, XATTR_NAME_FID, 0, handle);
1799 rc = dt_trans_start(env, cdev, handle);
1803 rc = dt_xattr_set(env, child, buf, XATTR_NAME_FID, 0, handle,
1806 GOTO(stop, rc = (rc == 0 ? 1 : rc));
1809 dt_trans_stop(env, cdev, handle);
1812 lu_object_put(env, &child->do_lu);
1818 * \retval +1: repaired
1819 * \retval 0: did nothing
1820 * \retval -ve: on error
1822 static int lfsck_layout_recreate_parent(const struct lu_env *env,
1823 struct lfsck_component *com,
1824 struct lfsck_tgt_desc *ltd,
1825 struct lu_orphan_rec *rec,
1826 struct lu_fid *cfid,
1828 const char *postfix,
1831 struct lfsck_thread_info *info = lfsck_env_info(env);
1832 char *name = info->lti_key;
1833 struct lu_attr *la = &info->lti_la;
1834 struct dt_object_format *dof = &info->lti_dof;
1835 struct lfsck_instance *lfsck = com->lc_lfsck;
1836 struct lu_fid *pfid = &rec->lor_fid;
1837 struct lu_fid *tfid = &info->lti_fid3;
1838 struct dt_device *next = lfsck->li_next;
1839 struct dt_object *pobj = NULL;
1840 struct dt_object *cobj = NULL;
1841 struct thandle *th = NULL;
1842 struct lu_buf *pbuf = NULL;
1843 struct lu_buf *ea_buf = &info->lti_big_buf;
1844 int buflen = ea_buf->lb_len;
1848 /* Create .lustre/lost+found/MDTxxxx when needed. */
1849 if (unlikely(lfsck->li_lpf_obj == NULL)) {
1850 rc = lfsck_create_lpf(env, lfsck);
1855 if (fid_is_zero(pfid)) {
1856 struct filter_fid *ff = &info->lti_new_pfid;
1858 rc = lfsck_fid_alloc(env, lfsck, pfid, false);
1862 ff->ff_parent.f_seq = cpu_to_le64(pfid->f_seq);
1863 ff->ff_parent.f_oid = cpu_to_le32(pfid->f_oid);
1864 /* In fact, the ff_parent::f_ver is not the real parent FID::f_ver,
1865 * instead, it is the OST-object index in its parent MDT-object
1867 ff->ff_parent.f_ver = cpu_to_le32(ea_off);
1868 pbuf = lfsck_buf_get(env, ff, sizeof(struct filter_fid));
1869 cobj = lfsck_object_find_by_dev(env, ltd->ltd_tgt, cfid);
1871 RETURN(PTR_ERR(cobj));
1874 CDEBUG(D_LFSCK, "Re-create the lost MDT-object: parent "
1875 DFID", child "DFID", OST-index %u, stripe-index %u, "
1876 "prefix %s, postfix %s\n",
1877 PFID(pfid), PFID(cfid), ltd->ltd_index, ea_off, prefix, postfix);
1879 pobj = lfsck_object_find_by_dev(env, lfsck->li_bottom, pfid);
1881 GOTO(put, rc = PTR_ERR(pobj));
1883 LASSERT(prefix != NULL);
1884 LASSERT(postfix != NULL);
1888 * 1. Use the MDT-object's FID as the name with prefix and postfix.
1890 * 1.1 prefix "C-": More than one OST-objects cliam the same
1891 * MDT-object and the same slot in the layout EA.
1892 * It may be created for dangling referenced MDT
1893 * object or may be not.
1894 * 1.2 prefix "N-": The orphan OST-object does not know which one
1895 * is the real parent, so the LFSCK assign a new
1896 * FID as its parent.
1897 * 1.3 prefix "R-": The orphan OST-object know its parent FID but
1898 * does not know the position in the namespace.
1900 * 2. If there is name conflict, increase FID::f_ver for new name. */
1901 sprintf(name, "%s"DFID"%s", prefix, PFID(pfid), postfix);
1903 rc = dt_lookup(env, lfsck->li_lpf_obj, (struct dt_rec *)tfid,
1904 (const struct dt_key *)name, BYPASS_CAPA);
1905 if (rc != 0 && rc != -ENOENT)
1908 if (unlikely(rc == 0)) {
1909 CWARN("%s: The name %s under lost+found has been used "
1910 "by the "DFID". Try to increase the FID version "
1911 "for the new file name.\n",
1912 lfsck_lfsck2name(lfsck), name, PFID(tfid));
1915 sprintf(name, "%s"DFID"%s", prefix, PFID(tfid), postfix);
1919 memset(la, 0, sizeof(*la));
1920 la->la_uid = rec->lor_uid;
1921 la->la_gid = rec->lor_gid;
1922 la->la_mode = S_IFREG | S_IRUSR | S_IWUSR;
1923 la->la_valid = LA_MODE | LA_UID | LA_GID;
1925 memset(dof, 0, sizeof(*dof));
1926 dof->dof_type = dt_mode_to_dft(S_IFREG);
1928 rc = lov_mds_md_size(ea_off + 1, LOV_MAGIC_V1);
1930 lu_buf_realloc(ea_buf, rc);
1931 buflen = ea_buf->lb_len;
1932 if (ea_buf->lb_buf == NULL)
1933 GOTO(put, rc = -ENOMEM);
1935 ea_buf->lb_len = rc;
1938 th = dt_trans_create(env, next);
1940 GOTO(put, rc = PTR_ERR(th));
1942 /* 1a. Update OST-object's parent information remotely.
1944 * If other subsequent modifications failed, then next LFSCK scanning
1945 * will process the OST-object as orphan again with known parent FID. */
1947 rc = dt_declare_xattr_set(env, cobj, pbuf, XATTR_NAME_FID, 0, th);
1952 /* 2a. Create the MDT-object locally. */
1953 rc = dt_declare_create(env, pobj, la, NULL, dof, th);
1957 /* 3a. Add layout EA for the MDT-object. */
1958 rc = dt_declare_xattr_set(env, pobj, ea_buf, XATTR_NAME_LOV,
1959 LU_XATTR_CREATE, th);
1963 /* 4a. Insert the MDT-object to .lustre/lost+found/MDTxxxx/ */
1964 rc = dt_declare_insert(env, lfsck->li_lpf_obj,
1965 (const struct dt_rec *)pfid,
1966 (const struct dt_key *)name, th);
1970 rc = dt_trans_start(env, next, th);
1974 /* 1b. Update OST-object's parent information remotely. */
1976 rc = dt_xattr_set(env, cobj, pbuf, XATTR_NAME_FID, 0, th,
1982 dt_write_lock(env, pobj, 0);
1983 /* 2b. Create the MDT-object locally. */
1984 rc = dt_create(env, pobj, la, NULL, dof, th);
1986 /* 3b. Add layout EA for the MDT-object. */
1987 rc = lfsck_layout_extend_lovea(env, th, pobj, cfid, ea_buf,
1988 LU_XATTR_CREATE, ltd->ltd_index,
1990 dt_write_unlock(env, pobj);
1994 /* 4b. Insert the MDT-object to .lustre/lost+found/MDTxxxx/ */
1995 rc = dt_insert(env, lfsck->li_lpf_obj,
1996 (const struct dt_rec *)pfid,
1997 (const struct dt_key *)name, th, BYPASS_CAPA, 1);
2002 dt_trans_stop(env, next, th);
2004 if (cobj != NULL && !IS_ERR(cobj))
2005 lu_object_put(env, &cobj->do_lu);
2006 if (pobj != NULL && !IS_ERR(pobj))
2007 lu_object_put(env, &pobj->do_lu);
2008 ea_buf->lb_len = buflen;
2010 return rc >= 0 ? 1 : rc;
2013 static int lfsck_layout_master_conditional_destroy(const struct lu_env *env,
2014 struct lfsck_component *com,
2015 const struct lu_fid *fid,
2018 struct lfsck_thread_info *info = lfsck_env_info(env);
2019 struct lfsck_request *lr = &info->lti_lr;
2020 struct lfsck_instance *lfsck = com->lc_lfsck;
2021 struct lfsck_tgt_desc *ltd;
2022 struct ptlrpc_request *req;
2023 struct lfsck_request *tmp;
2024 struct obd_export *exp;
2028 ltd = lfsck_tgt_get(&lfsck->li_ost_descs, index);
2029 if (unlikely(ltd == NULL))
2033 if (!(exp_connect_flags(exp) & OBD_CONNECT_LFSCK))
2034 GOTO(put, rc = -EOPNOTSUPP);
2036 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LFSCK_NOTIFY);
2038 GOTO(put, rc = -ENOMEM);
2040 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_NOTIFY);
2042 ptlrpc_request_free(req);
2047 memset(lr, 0, sizeof(*lr));
2048 lr->lr_event = LE_CONDITIONAL_DESTROY;
2049 lr->lr_active = LT_LAYOUT;
2052 tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
2054 ptlrpc_request_set_replen(req);
2056 rc = ptlrpc_queue_wait(req);
2057 ptlrpc_req_finished(req);
2067 static int lfsck_layout_slave_conditional_destroy(const struct lu_env *env,
2068 struct lfsck_component *com,
2069 struct lfsck_request *lr)
2071 struct lfsck_thread_info *info = lfsck_env_info(env);
2072 struct lu_attr *la = &info->lti_la;
2073 ldlm_policy_data_t *policy = &info->lti_policy;
2074 struct ldlm_res_id *resid = &info->lti_resid;
2075 struct lfsck_instance *lfsck = com->lc_lfsck;
2076 struct dt_device *dev = lfsck->li_bottom;
2077 struct lu_fid *fid = &lr->lr_fid;
2078 struct dt_object *obj;
2079 struct thandle *th = NULL;
2080 struct lustre_handle lh = { 0 };
2085 obj = lfsck_object_find_by_dev(env, dev, fid);
2087 RETURN(PTR_ERR(obj));
2089 dt_read_lock(env, obj, 0);
2090 if (dt_object_exists(obj) == 0) {
2091 dt_read_unlock(env, obj);
2093 GOTO(put, rc = -ENOENT);
2096 /* Get obj's attr without lock firstly. */
2097 rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
2098 dt_read_unlock(env, obj);
2102 if (likely(la->la_ctime != 0 || la->la_mode & S_ISUID))
2103 GOTO(put, rc = -ETXTBSY);
2105 /* Acquire extent lock on [0, EOF] to sync with all possible written. */
2106 LASSERT(lfsck->li_namespace != NULL);
2108 memset(policy, 0, sizeof(*policy));
2109 policy->l_extent.end = OBD_OBJECT_EOF;
2110 ost_fid_build_resid(fid, resid);
2111 rc = ldlm_cli_enqueue_local(lfsck->li_namespace, resid, LDLM_EXTENT,
2112 policy, LCK_EX, &flags, ldlm_blocking_ast,
2113 ldlm_completion_ast, NULL, NULL, 0,
2114 LVB_T_NONE, NULL, &lh);
2116 GOTO(put, rc = -EIO);
2118 th = dt_trans_create(env, dev);
2120 GOTO(unlock1, rc = PTR_ERR(th));
2122 rc = dt_declare_ref_del(env, obj, th);
2126 rc = dt_declare_destroy(env, obj, th);
2130 rc = dt_trans_start_local(env, dev, th);
2134 dt_write_lock(env, obj, 0);
2135 /* Get obj's attr within lock again. */
2136 rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
2140 if (la->la_ctime != 0)
2141 GOTO(unlock2, rc = -ETXTBSY);
2143 rc = dt_ref_del(env, obj, th);
2147 rc = dt_destroy(env, obj, th);
2149 CDEBUG(D_LFSCK, "Destroy the empty OST-object "DFID" which "
2150 "was created for reparing dangling referenced case. "
2151 "But the original missed OST-object is found now.\n",
2157 dt_write_unlock(env, obj);
2160 dt_trans_stop(env, dev, th);
2163 ldlm_lock_decref(&lh, LCK_EX);
2166 lu_object_put(env, &obj->do_lu);
2172 * Some OST-object has occupied the specified layout EA slot.
2173 * Such OST-object may be generated by the LFSCK when repair
2174 * dangling referenced MDT-object, which can be indicated by
2175 * attr::la_ctime == 0 but without S_ISUID in la_mode. If it
2176 * is true and such OST-object has not been modified yet, we
2177 * will replace it with the orphan OST-object; otherwise the
2178 * LFSCK will create new MDT-object to reference the orphan.
2180 * \retval +1: repaired
2181 * \retval 0: did nothing
2182 * \retval -ve: on error
2184 static int lfsck_layout_conflict_create(const struct lu_env *env,
2185 struct lfsck_component *com,
2186 struct lfsck_tgt_desc *ltd,
2187 struct lu_orphan_rec *rec,
2188 struct dt_object *parent,
2189 struct lu_fid *cfid,
2190 struct lu_buf *ea_buf,
2191 struct lov_ost_data_v1 *slot,
2192 __u32 ea_off, __u32 ori_len)
2194 struct lfsck_thread_info *info = lfsck_env_info(env);
2195 struct lu_fid *cfid2 = &info->lti_fid2;
2196 struct ost_id *oi = &info->lti_oi;
2197 struct lov_mds_md_v1 *lmm = ea_buf->lb_buf;
2198 struct dt_device *dev = com->lc_lfsck->li_bottom;
2199 struct thandle *th = NULL;
2200 struct lustre_handle lh = { 0 };
2202 __u32 ost_idx2 = le32_to_cpu(slot->l_ost_idx);
2206 ostid_le_to_cpu(&slot->l_ost_oi, oi);
2207 ostid_to_fid(cfid2, oi, ost_idx2);
2209 CDEBUG(D_LFSCK, "Handle layout EA conflict: parent "DFID
2210 ", cur-child "DFID" on the OST %u, orphan-child "
2211 DFID" on the OST %u, stripe-index %u\n",
2212 PFID(lfsck_dto2fid(parent)), PFID(cfid2), ost_idx2,
2213 PFID(cfid), ltd->ltd_index, ea_off);
2215 /* Hold layout lock on the parent to prevent others to access. */
2216 rc = lfsck_layout_lock(env, com, parent, &lh,
2217 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR);
2221 rc = lfsck_layout_master_conditional_destroy(env, com, cfid2, ost_idx2);
2223 /* If the conflict OST-obejct is not created for fixing dangling
2224 * referenced MDT-object in former LFSCK check/repair, or it has
2225 * been modified by others, then we cannot destroy it. Re-create
2226 * a new MDT-object for the orphan OST-object. */
2227 if (rc == -ETXTBSY) {
2228 /* No need the layout lock on the original parent. */
2229 lfsck_layout_unlock(&lh);
2230 ea_buf->lb_len = ori_len;
2232 fid_zero(&rec->lor_fid);
2233 snprintf(postfix, 64, "-"DFID"-%x",
2234 PFID(lu_object_fid(&parent->do_lu)), ea_off);
2235 rc = lfsck_layout_recreate_parent(env, com, ltd, rec, cfid,
2236 "C-", postfix, ea_off);
2241 if (rc != 0 && rc != -ENOENT)
2244 th = dt_trans_create(env, dev);
2246 GOTO(unlock, rc = PTR_ERR(th));
2248 rc = dt_declare_xattr_set(env, parent, ea_buf, XATTR_NAME_LOV,
2249 LU_XATTR_REPLACE, th);
2253 rc = dt_trans_start_local(env, dev, th);
2257 dt_write_lock(env, parent, 0);
2258 lmm->lmm_layout_gen = cpu_to_le16(le16_to_cpu(lmm->lmm_layout_gen) + 1);
2259 rc = lfsck_layout_refill_lovea(env, th, parent, cfid, ea_buf, slot,
2260 LU_XATTR_REPLACE, ltd->ltd_index);
2261 dt_write_unlock(env, parent);
2266 dt_trans_stop(env, dev, th);
2269 lfsck_layout_unlock(&lh);
2272 ea_buf->lb_len = ori_len;
2274 return rc >= 0 ? 1 : rc;
2278 * \retval +1: repaired
2279 * \retval 0: did nothing
2280 * \retval -ve: on error
2282 static int lfsck_layout_recreate_lovea(const struct lu_env *env,
2283 struct lfsck_component *com,
2284 struct lfsck_tgt_desc *ltd,
2285 struct lu_orphan_rec *rec,
2286 struct dt_object *parent,
2287 struct lu_fid *cfid,
2288 __u32 ost_idx, __u32 ea_off)
2290 struct lfsck_thread_info *info = lfsck_env_info(env);
2291 struct lu_buf *buf = &info->lti_big_buf;
2292 struct lu_fid *fid = &info->lti_fid2;
2293 struct ost_id *oi = &info->lti_oi;
2294 struct lfsck_instance *lfsck = com->lc_lfsck;
2295 struct dt_device *dt = lfsck->li_bottom;
2296 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
2297 struct thandle *handle = NULL;
2298 size_t buflen = buf->lb_len;
2299 struct lov_mds_md_v1 *lmm;
2300 struct lov_ost_data_v1 *objs;
2301 struct lustre_handle lh = { 0 };
2310 CDEBUG(D_LFSCK, "Re-create the crashed layout EA: parent "
2311 DFID", child "DFID", OST-index %u, stripe-index %u\n",
2312 PFID(lfsck_dto2fid(parent)), PFID(cfid), ost_idx, ea_off);
2314 rc = lfsck_layout_lock(env, com, parent, &lh,
2315 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR);
2320 if (!(bk->lb_param & LPF_DRYRUN)) {
2321 handle = dt_trans_create(env, dt);
2323 GOTO(unlock_layout, rc = PTR_ERR(handle));
2325 rc = dt_declare_xattr_set(env, parent, buf, XATTR_NAME_LOV,
2330 rc = dt_trans_start_local(env, dt, handle);
2335 dt_write_lock(env, parent, 0);
2336 rc = dt_xattr_get(env, parent, buf, XATTR_NAME_LOV, BYPASS_CAPA);
2337 if (rc == -ERANGE) {
2338 rc = dt_xattr_get(env, parent, &LU_BUF_NULL, XATTR_NAME_LOV,
2342 dt_write_unlock(env, parent);
2343 if (handle != NULL) {
2344 dt_trans_stop(env, dt, handle);
2349 GOTO(unlock_layout, rc);
2351 lu_buf_realloc(buf, rc);
2352 buflen = buf->lb_len;
2353 if (buf->lb_buf == NULL)
2354 GOTO(unlock_layout, rc = -ENOMEM);
2356 fl = LU_XATTR_REPLACE;
2358 } else if (rc == -ENODATA || rc == 0) {
2359 fl = LU_XATTR_CREATE;
2360 } else if (rc < 0) {
2361 GOTO(unlock_parent, rc);
2362 } else if (unlikely(buf->lb_len == 0)) {
2363 dt_write_unlock(env, parent);
2364 if (handle != NULL) {
2365 dt_trans_stop(env, dt, handle);
2369 lu_buf_alloc(buf, rc);
2370 buflen = buf->lb_len;
2371 if (buf->lb_buf == NULL)
2372 GOTO(unlock_layout, rc = -ENOMEM);
2374 fl = LU_XATTR_REPLACE;
2377 fl = LU_XATTR_REPLACE;
2380 if (fl == LU_XATTR_CREATE) {
2381 if (bk->lb_param & LPF_DRYRUN)
2382 GOTO(unlock_parent, rc = 1);
2384 rc = lov_mds_md_size(ea_off + 1, LOV_MAGIC_V1);
2385 /* If the declared is not big enough, re-try. */
2386 if (buf->lb_len < rc) {
2387 dt_write_unlock(env, parent);
2388 if (handle != NULL) {
2389 dt_trans_stop(env, dt, handle);
2393 lu_buf_realloc(buf, rc);
2394 buflen = buf->lb_len;
2395 if (buf->lb_buf == NULL)
2396 GOTO(unlock_layout, rc = -ENOMEM);
2402 rc = lfsck_layout_extend_lovea(env, handle, parent, cfid, buf,
2403 fl, ost_idx, ea_off);
2405 GOTO(unlock_parent, rc);
2409 rc1 = lfsck_layout_verify_header(lmm);
2411 GOTO(unlock_parent, rc = rc1);
2413 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
2414 * been verified in lfsck_layout_verify_header() already. If some
2415 * new magic introduced in the future, then layout LFSCK needs to
2416 * be updated also. */
2417 magic = le32_to_cpu(lmm->lmm_magic);
2418 if (magic == LOV_MAGIC_V1) {
2419 objs = &(lmm->lmm_objects[0]);
2421 LASSERT(magic == LOV_MAGIC_V3);
2422 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
2425 count = le16_to_cpu(lmm->lmm_stripe_count);
2427 GOTO(unlock_parent, rc = -EINVAL);
2430 /* Exceed the current end of MDT-object layout EA. Then extend it. */
2431 if (count <= ea_off) {
2432 if (bk->lb_param & LPF_DRYRUN)
2433 GOTO(unlock_parent, rc = 1);
2435 rc = lov_mds_md_size(ea_off + 1, LOV_MAGIC_V1);
2436 /* If the declared is not big enough, re-try. */
2437 if (buf->lb_len < rc) {
2438 dt_write_unlock(env, parent);
2439 if (handle != NULL) {
2440 dt_trans_stop(env, dt, handle);
2444 lu_buf_realloc(buf, rc);
2445 buflen = buf->lb_len;
2446 if (buf->lb_buf == NULL)
2447 GOTO(unlock_layout, rc = -ENOMEM);
2453 rc = lfsck_layout_extend_lovea(env, handle, parent, cfid, buf,
2454 fl, ost_idx, ea_off);
2455 GOTO(unlock_parent, rc);
2458 LASSERTF(rc > 0, "invalid rc = %d\n", rc);
2461 for (i = 0; i < count; i++, objs++) {
2462 /* The MDT-object was created via lfsck_layout_recover_create()
2463 * by others before, and we fill the dummy layout EA. */
2464 if (is_dummy_lov_ost_data(objs)) {
2468 if (bk->lb_param & LPF_DRYRUN)
2469 GOTO(unlock_parent, rc = 1);
2471 lmm->lmm_layout_gen =
2472 cpu_to_le16(le16_to_cpu(lmm->lmm_layout_gen) + 1);
2473 rc = lfsck_layout_refill_lovea(env, handle, parent,
2474 cfid, buf, objs, fl,
2476 GOTO(unlock_parent, rc);
2479 ostid_le_to_cpu(&objs->l_ost_oi, oi);
2480 ostid_to_fid(fid, oi, le32_to_cpu(objs->l_ost_idx));
2481 /* It should be rare case, the slot is there, but the LFSCK
2482 * does not handle it during the first-phase cycle scanning. */
2483 if (unlikely(lu_fid_eq(fid, cfid))) {
2485 GOTO(unlock_parent, rc = 0);
2487 /* Rare case that the OST-object index
2488 * does not match the parent MDT-object
2489 * layout EA. We trust the later one. */
2490 if (bk->lb_param & LPF_DRYRUN)
2491 GOTO(unlock_parent, rc = 1);
2493 dt_write_unlock(env, parent);
2495 dt_trans_stop(env, dt, handle);
2496 lfsck_layout_unlock(&lh);
2497 buf->lb_len = buflen;
2498 rc = lfsck_layout_update_pfid(env, com, parent,
2499 cfid, ltd->ltd_tgt, i);
2506 /* The MDT-object exists, but related layout EA slot is occupied
2508 if (bk->lb_param & LPF_DRYRUN)
2509 GOTO(unlock_parent, rc = 1);
2511 dt_write_unlock(env, parent);
2513 dt_trans_stop(env, dt, handle);
2514 lfsck_layout_unlock(&lh);
2515 if (le32_to_cpu(lmm->lmm_magic) == LOV_MAGIC_V1)
2516 objs = &(lmm->lmm_objects[ea_off]);
2518 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[ea_off];
2519 rc = lfsck_layout_conflict_create(env, com, ltd, rec, parent, cfid,
2520 buf, objs, ea_off, buflen);
2525 dt_write_unlock(env, parent);
2529 dt_trans_stop(env, dt, handle);
2532 lfsck_layout_unlock(&lh);
2533 buf->lb_len = buflen;
2538 static int lfsck_layout_scan_orphan_one(const struct lu_env *env,
2539 struct lfsck_component *com,
2540 struct lfsck_tgt_desc *ltd,
2541 struct lu_orphan_rec *rec,
2542 struct lu_fid *cfid)
2544 struct lfsck_layout *lo = com->lc_file_ram;
2545 struct lu_fid *pfid = &rec->lor_fid;
2546 struct dt_object *parent = NULL;
2547 __u32 ea_off = pfid->f_ver;
2551 if (!fid_is_sane(cfid))
2552 GOTO(out, rc = -EINVAL);
2554 if (fid_is_zero(pfid)) {
2555 rc = lfsck_layout_recreate_parent(env, com, ltd, rec, cfid,
2561 if (!fid_is_sane(pfid))
2562 GOTO(out, rc = -EINVAL);
2564 parent = lfsck_object_find_by_dev(env, com->lc_lfsck->li_bottom, pfid);
2566 GOTO(out, rc = PTR_ERR(parent));
2568 if (unlikely(dt_object_remote(parent) != 0))
2569 GOTO(put, rc = -EXDEV);
2571 if (dt_object_exists(parent) == 0) {
2572 lu_object_put(env, &parent->do_lu);
2573 rc = lfsck_layout_recreate_parent(env, com, ltd, rec, cfid,
2578 if (!S_ISREG(lu_object_attr(&parent->do_lu)))
2579 GOTO(put, rc = -EISDIR);
2581 rc = lfsck_layout_recreate_lovea(env, com, ltd, rec, parent, cfid,
2582 ltd->ltd_index, ea_off);
2588 lu_object_put(env, &parent->do_lu);
2590 /* The layout EA is changed, need to be reloaded next time. */
2591 lu_object_put_nocache(env, &parent->do_lu);
2594 down_write(&com->lc_sem);
2595 com->lc_new_scanned++;
2596 com->lc_new_checked++;
2598 lo->ll_objs_repaired[LLIT_ORPHAN - 1]++;
2600 } else if (rc < 0) {
2601 lo->ll_objs_failed_phase2++;
2603 up_write(&com->lc_sem);
2608 static int lfsck_layout_scan_orphan(const struct lu_env *env,
2609 struct lfsck_component *com,
2610 struct lfsck_tgt_desc *ltd)
2612 struct lfsck_layout *lo = com->lc_file_ram;
2613 struct lfsck_instance *lfsck = com->lc_lfsck;
2614 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
2615 struct lfsck_thread_info *info = lfsck_env_info(env);
2616 struct ost_id *oi = &info->lti_oi;
2617 struct lu_fid *fid = &info->lti_fid;
2618 struct dt_object *obj;
2619 const struct dt_it_ops *iops;
2624 CDEBUG(D_LFSCK, "%s: start the orphan scanning for OST%04x\n",
2625 lfsck_lfsck2name(lfsck), ltd->ltd_index);
2627 ostid_set_seq(oi, FID_SEQ_IDIF);
2628 ostid_set_id(oi, 0);
2629 ostid_to_fid(fid, oi, ltd->ltd_index);
2630 obj = lfsck_object_find_by_dev(env, ltd->ltd_tgt, fid);
2631 if (unlikely(IS_ERR(obj)))
2632 RETURN(PTR_ERR(obj));
2634 rc = obj->do_ops->do_index_try(env, obj, &dt_lfsck_orphan_features);
2638 iops = &obj->do_index_ops->dio_it;
2639 di = iops->init(env, obj, 0, BYPASS_CAPA);
2641 GOTO(put, rc = PTR_ERR(di));
2643 rc = iops->load(env, di, 0);
2645 /* -ESRCH means that the orphan OST-objects rbtree has been
2646 * cleanup because of the OSS server restart or other errors. */
2647 lo->ll_flags |= LF_INCOMPLETE;
2652 rc = iops->next(env, di);
2664 struct lu_orphan_rec *rec = &info->lti_rec;
2666 if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY3) &&
2668 struct ptlrpc_thread *thread = &lfsck->li_thread;
2669 struct l_wait_info lwi;
2671 lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
2673 l_wait_event(thread->t_ctl_waitq,
2674 !thread_is_running(thread),
2678 key = iops->key(env, di);
2679 com->lc_fid_latest_scanned_phase2 = *(struct lu_fid *)key;
2680 rc = iops->rec(env, di, (struct dt_rec *)rec, 0);
2682 rc = lfsck_layout_scan_orphan_one(env, com, ltd, rec,
2683 &com->lc_fid_latest_scanned_phase2);
2684 if (rc != 0 && bk->lb_param & LPF_FAILOUT)
2687 lfsck_control_speed_by_self(com);
2689 rc = iops->next(env, di);
2690 } while (rc < 0 && !(bk->lb_param & LPF_FAILOUT));
2697 iops->fini(env, di);
2699 lu_object_put(env, &obj->do_lu);
2701 CDEBUG(D_LFSCK, "%s: finish the orphan scanning for OST%04x, rc = %d\n",
2702 lfsck_lfsck2name(lfsck), ltd->ltd_index, rc);
2704 return rc > 0 ? 0 : rc;
2707 /* For the MDT-object with dangling reference, we need to re-create
2708 * the missed OST-object with the known FID/owner information. */
2709 static int lfsck_layout_recreate_ostobj(const struct lu_env *env,
2710 struct lfsck_component *com,
2711 struct lfsck_layout_req *llr,
2714 struct lfsck_thread_info *info = lfsck_env_info(env);
2715 struct filter_fid *pfid = &info->lti_new_pfid;
2716 struct dt_allocation_hint *hint = &info->lti_hint;
2717 struct dt_object *parent = llr->llr_parent->llo_obj;
2718 struct dt_object *child = llr->llr_child;
2719 struct dt_device *dev = lfsck_obj2dt_dev(child);
2720 const struct lu_fid *tfid = lu_object_fid(&parent->do_lu);
2721 struct thandle *handle;
2723 struct lustre_handle lh = { 0 };
2727 CDEBUG(D_LFSCK, "Repair dangling reference for: parent "DFID
2728 ", child "DFID", OST-index %u, stripe-index %u, owner %u:%u\n",
2729 PFID(lfsck_dto2fid(parent)), PFID(lfsck_dto2fid(child)),
2730 llr->llr_ost_idx, llr->llr_lov_idx, la->la_uid, la->la_gid);
2732 rc = lfsck_layout_lock(env, com, parent, &lh,
2733 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR);
2737 handle = dt_trans_create(env, dev);
2739 GOTO(unlock1, rc = PTR_ERR(handle));
2741 hint->dah_parent = NULL;
2743 pfid->ff_parent.f_seq = cpu_to_le64(tfid->f_seq);
2744 pfid->ff_parent.f_oid = cpu_to_le32(tfid->f_oid);
2745 pfid->ff_parent.f_ver = cpu_to_le32(llr->llr_lov_idx);
2746 buf = lfsck_buf_get(env, pfid, sizeof(struct filter_fid));
2748 rc = dt_declare_create(env, child, la, hint, NULL, handle);
2752 rc = dt_declare_xattr_set(env, child, buf, XATTR_NAME_FID,
2753 LU_XATTR_CREATE, handle);
2757 rc = dt_trans_start(env, dev, handle);
2761 dt_read_lock(env, parent, 0);
2762 if (unlikely(lu_object_is_dying(parent->do_lu.lo_header)))
2763 GOTO(unlock2, rc = 1);
2765 rc = dt_create(env, child, la, hint, NULL, handle);
2769 rc = dt_xattr_set(env, child, buf, XATTR_NAME_FID, LU_XATTR_CREATE,
2770 handle, BYPASS_CAPA);
2775 dt_read_unlock(env, parent);
2778 rc = lfsck_layout_trans_stop(env, dev, handle, rc);
2781 lfsck_layout_unlock(&lh);
2786 /* If the OST-object does not recognize the MDT-object as its parent, and
2787 * there is no other MDT-object claims as its parent, then just trust the
2788 * given MDT-object as its parent. So update the OST-object filter_fid. */
2789 static int lfsck_layout_repair_unmatched_pair(const struct lu_env *env,
2790 struct lfsck_component *com,
2791 struct lfsck_layout_req *llr,
2792 const struct lu_attr *pla)
2794 struct lfsck_thread_info *info = lfsck_env_info(env);
2795 struct filter_fid *pfid = &info->lti_new_pfid;
2796 struct lu_attr *tla = &info->lti_la3;
2797 struct dt_object *parent = llr->llr_parent->llo_obj;
2798 struct dt_object *child = llr->llr_child;
2799 struct dt_device *dev = lfsck_obj2dt_dev(child);
2800 const struct lu_fid *tfid = lu_object_fid(&parent->do_lu);
2801 struct thandle *handle;
2803 struct lustre_handle lh = { 0 };
2807 CDEBUG(D_LFSCK, "Repair unmatched MDT-OST pair for: parent "DFID
2808 ", child "DFID", OST-index %u, stripe-index %u, owner %u:%u\n",
2809 PFID(lfsck_dto2fid(parent)), PFID(lfsck_dto2fid(child)),
2810 llr->llr_ost_idx, llr->llr_lov_idx, pla->la_uid, pla->la_gid);
2812 rc = lfsck_layout_lock(env, com, parent, &lh,
2813 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR);
2817 handle = dt_trans_create(env, dev);
2819 GOTO(unlock1, rc = PTR_ERR(handle));
2821 pfid->ff_parent.f_seq = cpu_to_le64(tfid->f_seq);
2822 pfid->ff_parent.f_oid = cpu_to_le32(tfid->f_oid);
2823 /* The ff_parent->f_ver is not the real parent fid->f_ver. Instead,
2824 * it is the OST-object index in the parent MDT-object layout. */
2825 pfid->ff_parent.f_ver = cpu_to_le32(llr->llr_lov_idx);
2826 buf = lfsck_buf_get(env, pfid, sizeof(struct filter_fid));
2828 rc = dt_declare_xattr_set(env, child, buf, XATTR_NAME_FID, 0, handle);
2832 tla->la_valid = LA_UID | LA_GID;
2833 tla->la_uid = pla->la_uid;
2834 tla->la_gid = pla->la_gid;
2835 rc = dt_declare_attr_set(env, child, tla, handle);
2839 rc = dt_trans_start(env, dev, handle);
2843 dt_write_lock(env, parent, 0);
2844 if (unlikely(lu_object_is_dying(parent->do_lu.lo_header)))
2845 GOTO(unlock2, rc = 1);
2847 rc = dt_xattr_set(env, child, buf, XATTR_NAME_FID, 0, handle,
2852 /* Get the latest parent's owner. */
2853 rc = dt_attr_get(env, parent, tla, BYPASS_CAPA);
2857 tla->la_valid = LA_UID | LA_GID;
2858 rc = dt_attr_set(env, child, tla, handle, BYPASS_CAPA);
2863 dt_write_unlock(env, parent);
2866 rc = lfsck_layout_trans_stop(env, dev, handle, rc);
2869 lfsck_layout_unlock(&lh);
2874 /* If there are more than one MDT-objects claim as the OST-object's parent,
2875 * and the OST-object only recognizes one of them, then we need to generate
2876 * new OST-object(s) with new fid(s) for the non-recognized MDT-object(s). */
2877 static int lfsck_layout_repair_multiple_references(const struct lu_env *env,
2878 struct lfsck_component *com,
2879 struct lfsck_layout_req *llr,
2883 struct lfsck_thread_info *info = lfsck_env_info(env);
2884 struct dt_allocation_hint *hint = &info->lti_hint;
2885 struct dt_object_format *dof = &info->lti_dof;
2886 struct dt_device *pdev = com->lc_lfsck->li_next;
2887 struct ost_id *oi = &info->lti_oi;
2888 struct dt_object *parent = llr->llr_parent->llo_obj;
2889 struct dt_device *cdev = lfsck_obj2dt_dev(llr->llr_child);
2890 struct dt_object *child = NULL;
2891 struct lu_device *d = &cdev->dd_lu_dev;
2892 struct lu_object *o = NULL;
2893 struct thandle *handle;
2894 struct lov_mds_md_v1 *lmm;
2895 struct lov_ost_data_v1 *objs;
2896 struct lustre_handle lh = { 0 };
2901 CDEBUG(D_LFSCK, "Repair multiple references for: parent "DFID
2902 ", OST-index %u, stripe-index %u, owner %u:%u\n",
2903 PFID(lfsck_dto2fid(parent)), llr->llr_ost_idx,
2904 llr->llr_lov_idx, la->la_uid, la->la_gid);
2906 rc = lfsck_layout_lock(env, com, parent, &lh,
2907 MDS_INODELOCK_LAYOUT | MDS_INODELOCK_XATTR);
2911 handle = dt_trans_create(env, pdev);
2913 GOTO(unlock1, rc = PTR_ERR(handle));
2915 o = lu_object_anon(env, d, NULL);
2917 GOTO(stop, rc = PTR_ERR(o));
2919 child = container_of(o, struct dt_object, do_lu);
2920 o = lu_object_locate(o->lo_header, d->ld_type);
2921 if (unlikely(o == NULL))
2922 GOTO(stop, rc = -EINVAL);
2924 child = container_of(o, struct dt_object, do_lu);
2925 la->la_valid = LA_UID | LA_GID;
2926 hint->dah_parent = NULL;
2928 dof->dof_type = DFT_REGULAR;
2929 rc = dt_declare_create(env, child, la, NULL, NULL, handle);
2933 rc = dt_declare_xattr_set(env, parent, buf, XATTR_NAME_LOV,
2934 LU_XATTR_REPLACE, handle);
2938 rc = dt_trans_start(env, pdev, handle);
2942 dt_write_lock(env, parent, 0);
2943 if (unlikely(lu_object_is_dying(parent->do_lu.lo_header)))
2944 GOTO(unlock2, rc = 0);
2946 rc = dt_xattr_get(env, parent, buf, XATTR_NAME_LOV, BYPASS_CAPA);
2947 if (unlikely(rc == 0 || rc == -ENODATA || rc == -ERANGE))
2948 GOTO(unlock2, rc = 0);
2951 rc = lfsck_layout_verify_header(lmm);
2955 /* Someone change layout during the LFSCK, no need to repair then. */
2956 if (le16_to_cpu(lmm->lmm_layout_gen) != llr->llr_parent->llo_gen)
2957 GOTO(unlock2, rc = 0);
2959 rc = dt_create(env, child, la, hint, dof, handle);
2963 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
2964 * been verified in lfsck_layout_verify_header() already. If some
2965 * new magic introduced in the future, then layout LFSCK needs to
2966 * be updated also. */
2967 magic = le32_to_cpu(lmm->lmm_magic);
2968 if (magic == LOV_MAGIC_V1) {
2969 objs = &(lmm->lmm_objects[0]);
2971 LASSERT(magic == LOV_MAGIC_V3);
2972 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
2975 lmm->lmm_layout_gen = cpu_to_le16(llr->llr_parent->llo_gen + 1);
2976 fid_to_ostid(lu_object_fid(&child->do_lu), oi);
2977 ostid_cpu_to_le(oi, &objs[llr->llr_lov_idx].l_ost_oi);
2978 objs[llr->llr_lov_idx].l_ost_gen = cpu_to_le32(0);
2979 objs[llr->llr_lov_idx].l_ost_idx = cpu_to_le32(llr->llr_ost_idx);
2980 rc = dt_xattr_set(env, parent, buf, XATTR_NAME_LOV,
2981 LU_XATTR_REPLACE, handle, BYPASS_CAPA);
2983 GOTO(unlock2, rc = (rc == 0 ? 1 : rc));
2986 dt_write_unlock(env, parent);
2990 lu_object_put(env, &child->do_lu);
2992 dt_trans_stop(env, pdev, handle);
2995 lfsck_layout_unlock(&lh);
3000 /* If the MDT-object and the OST-object have different owner information,
3001 * then trust the MDT-object, because the normal chown/chgrp handle order
3002 * is from MDT to OST, and it is possible that some chown/chgrp operation
3003 * is partly done. */
3004 static int lfsck_layout_repair_owner(const struct lu_env *env,
3005 struct lfsck_component *com,
3006 struct lfsck_layout_req *llr,
3007 struct lu_attr *pla)
3009 struct lfsck_thread_info *info = lfsck_env_info(env);
3010 struct lu_attr *tla = &info->lti_la3;
3011 struct dt_object *parent = llr->llr_parent->llo_obj;
3012 struct dt_object *child = llr->llr_child;
3013 struct dt_device *dev = lfsck_obj2dt_dev(child);
3014 struct thandle *handle;
3018 CDEBUG(D_LFSCK, "Repair inconsistent file owner for: parent "DFID
3019 ", child "DFID", OST-index %u, stripe-index %u, owner %u:%u\n",
3020 PFID(lfsck_dto2fid(parent)), PFID(lfsck_dto2fid(child)),
3021 llr->llr_ost_idx, llr->llr_lov_idx, pla->la_uid, pla->la_gid);
3023 handle = dt_trans_create(env, dev);
3025 RETURN(PTR_ERR(handle));
3027 tla->la_uid = pla->la_uid;
3028 tla->la_gid = pla->la_gid;
3029 tla->la_valid = LA_UID | LA_GID;
3030 rc = dt_declare_attr_set(env, child, tla, handle);
3034 rc = dt_trans_start(env, dev, handle);
3038 /* Use the dt_object lock to serialize with destroy and attr_set. */
3039 dt_read_lock(env, parent, 0);
3040 if (unlikely(lu_object_is_dying(parent->do_lu.lo_header)))
3041 GOTO(unlock, rc = 1);
3043 /* Get the latest parent's owner. */
3044 rc = dt_attr_get(env, parent, tla, BYPASS_CAPA);
3046 CWARN("%s: fail to get the latest parent's ("DFID") owner, "
3047 "not sure whether some others chown/chgrp during the "
3048 "LFSCK: rc = %d\n", lfsck_lfsck2name(com->lc_lfsck),
3049 PFID(lfsck_dto2fid(parent)), rc);
3054 /* Some others chown/chgrp during the LFSCK, needs to do nothing. */
3055 if (unlikely(tla->la_uid != pla->la_uid ||
3056 tla->la_gid != pla->la_gid))
3057 GOTO(unlock, rc = 1);
3059 tla->la_valid = LA_UID | LA_GID;
3060 rc = dt_attr_set(env, child, tla, handle, BYPASS_CAPA);
3065 dt_read_unlock(env, parent);
3068 rc = lfsck_layout_trans_stop(env, dev, handle, rc);
3073 /* Check whether the OST-object correctly back points to the
3074 * MDT-object (@parent) via the XATTR_NAME_FID xattr (@pfid). */
3075 static int lfsck_layout_check_parent(const struct lu_env *env,
3076 struct lfsck_component *com,
3077 struct dt_object *parent,
3078 const struct lu_fid *pfid,
3079 const struct lu_fid *cfid,
3080 const struct lu_attr *pla,
3081 const struct lu_attr *cla,
3082 struct lfsck_layout_req *llr,
3083 struct lu_buf *lov_ea, __u32 idx)
3085 struct lfsck_thread_info *info = lfsck_env_info(env);
3086 struct lu_buf *buf = &info->lti_big_buf;
3087 struct dt_object *tobj;
3088 struct lov_mds_md_v1 *lmm;
3089 struct lov_ost_data_v1 *objs;
3096 if (fid_is_zero(pfid)) {
3097 /* client never wrote. */
3098 if (cla->la_size == 0 && cla->la_blocks == 0) {
3099 if (unlikely(cla->la_uid != pla->la_uid ||
3100 cla->la_gid != pla->la_gid))
3101 RETURN (LLIT_INCONSISTENT_OWNER);
3106 RETURN(LLIT_UNMATCHED_PAIR);
3109 if (unlikely(!fid_is_sane(pfid)))
3110 RETURN(LLIT_UNMATCHED_PAIR);
3112 if (lu_fid_eq(pfid, lu_object_fid(&parent->do_lu))) {
3113 if (llr->llr_lov_idx == idx)
3116 RETURN(LLIT_UNMATCHED_PAIR);
3119 tobj = lfsck_object_find(env, com->lc_lfsck, pfid);
3121 RETURN(LLIT_UNMATCHED_PAIR);
3124 RETURN(PTR_ERR(tobj));
3126 if (!dt_object_exists(tobj))
3127 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3129 /* Load the tobj's layout EA, in spite of it is a local MDT-object or
3130 * remote one on another MDT. Then check whether the given OST-object
3131 * is in such layout. If yes, it is multiple referenced, otherwise it
3132 * is unmatched referenced case. */
3133 rc = lfsck_layout_get_lovea(env, tobj, buf, NULL);
3135 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3141 rc = lfsck_layout_verify_header(lmm);
3145 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
3146 * been verified in lfsck_layout_verify_header() already. If some
3147 * new magic introduced in the future, then layout LFSCK needs to
3148 * be updated also. */
3149 magic = le32_to_cpu(lmm->lmm_magic);
3150 if (magic == LOV_MAGIC_V1) {
3151 objs = &(lmm->lmm_objects[0]);
3153 LASSERT(magic == LOV_MAGIC_V3);
3154 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
3157 count = le16_to_cpu(lmm->lmm_stripe_count);
3158 for (i = 0; i < count; i++, objs++) {
3159 struct lu_fid *tfid = &info->lti_fid2;
3160 struct ost_id *oi = &info->lti_oi;
3162 if (is_dummy_lov_ost_data(objs))
3165 ostid_le_to_cpu(&objs->l_ost_oi, oi);
3166 ostid_to_fid(tfid, oi, le32_to_cpu(objs->l_ost_idx));
3167 if (lu_fid_eq(cfid, tfid)) {
3170 GOTO(out, rc = LLIT_MULTIPLE_REFERENCED);
3174 GOTO(out, rc = LLIT_UNMATCHED_PAIR);
3177 lfsck_object_put(env, tobj);
3182 static int lfsck_layout_assistant_handle_one(const struct lu_env *env,
3183 struct lfsck_component *com,
3184 struct lfsck_layout_req *llr)
3186 struct lfsck_layout *lo = com->lc_file_ram;
3187 struct lfsck_thread_info *info = lfsck_env_info(env);
3188 struct filter_fid_old *pea = &info->lti_old_pfid;
3189 struct lu_fid *pfid = &info->lti_fid;
3190 struct lu_buf *buf = NULL;
3191 struct dt_object *parent = llr->llr_parent->llo_obj;
3192 struct dt_object *child = llr->llr_child;
3193 struct lu_attr *pla = &info->lti_la;
3194 struct lu_attr *cla = &info->lti_la2;
3195 struct lfsck_instance *lfsck = com->lc_lfsck;
3196 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
3197 enum lfsck_layout_inconsistency_type type = LLIT_NONE;
3202 rc = dt_attr_get(env, parent, pla, BYPASS_CAPA);
3204 if (lu_object_is_dying(parent->do_lu.lo_header))
3210 rc = dt_attr_get(env, child, cla, BYPASS_CAPA);
3211 if (rc == -ENOENT) {
3212 if (lu_object_is_dying(parent->do_lu.lo_header))
3215 type = LLIT_DANGLING;
3222 buf = lfsck_buf_get(env, pea, sizeof(struct filter_fid_old));
3223 rc= dt_xattr_get(env, child, buf, XATTR_NAME_FID, BYPASS_CAPA);
3224 if (unlikely(rc >= 0 && rc != sizeof(struct filter_fid_old) &&
3225 rc != sizeof(struct filter_fid))) {
3226 type = LLIT_UNMATCHED_PAIR;
3230 if (rc < 0 && rc != -ENODATA)
3233 if (rc == -ENODATA) {
3236 fid_le_to_cpu(pfid, &pea->ff_parent);
3237 /* OST-object does not save parent FID::f_ver, instead,
3238 * the OST-object index in the parent MDT-object layout
3239 * EA reuses the pfid->f_ver. */
3244 rc = lfsck_layout_check_parent(env, com, parent, pfid,
3245 lu_object_fid(&child->do_lu),
3246 pla, cla, llr, buf, idx);
3255 if (unlikely(cla->la_uid != pla->la_uid ||
3256 cla->la_gid != pla->la_gid)) {
3257 type = LLIT_INCONSISTENT_OWNER;
3262 if (bk->lb_param & LPF_DRYRUN) {
3263 if (type != LLIT_NONE)
3271 memset(cla, 0, sizeof(*cla));
3272 cla->la_uid = pla->la_uid;
3273 cla->la_gid = pla->la_gid;
3274 cla->la_mode = S_IFREG | 0666;
3275 cla->la_valid = LA_TYPE | LA_MODE | LA_UID | LA_GID |
3276 LA_ATIME | LA_MTIME | LA_CTIME;
3277 rc = lfsck_layout_recreate_ostobj(env, com, llr, cla);
3279 case LLIT_UNMATCHED_PAIR:
3280 rc = lfsck_layout_repair_unmatched_pair(env, com, llr, pla);
3282 case LLIT_MULTIPLE_REFERENCED:
3283 rc = lfsck_layout_repair_multiple_references(env, com, llr,
3286 case LLIT_INCONSISTENT_OWNER:
3287 rc = lfsck_layout_repair_owner(env, com, llr, pla);
3297 down_write(&com->lc_sem);
3299 /* If cannot touch the target server,
3300 * mark the LFSCK as INCOMPLETE. */
3301 if (rc == -ENOTCONN || rc == -ESHUTDOWN || rc == -ETIMEDOUT ||
3302 rc == -EHOSTDOWN || rc == -EHOSTUNREACH) {
3303 CERROR("%s: Fail to talk with OST %x: rc = %d.\n",
3304 lfsck_lfsck2name(lfsck), llr->llr_ost_idx, rc);
3305 lo->ll_flags |= LF_INCOMPLETE;
3306 lo->ll_objs_skipped++;
3309 lo->ll_objs_failed_phase1++;
3311 } else if (rc > 0) {
3312 LASSERTF(type > LLIT_NONE && type <= LLIT_MAX,
3313 "unknown type = %d\n", type);
3315 lo->ll_objs_repaired[type - 1]++;
3317 up_write(&com->lc_sem);
3322 static int lfsck_layout_assistant(void *args)
3324 struct lfsck_thread_args *lta = args;
3325 struct lu_env *env = <a->lta_env;
3326 struct lfsck_component *com = lta->lta_com;
3327 struct lfsck_instance *lfsck = lta->lta_lfsck;
3328 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
3329 struct lfsck_position *pos = &com->lc_pos_start;
3330 struct lfsck_thread_info *info = lfsck_env_info(env);
3331 struct lfsck_request *lr = &info->lti_lr;
3332 struct lfsck_layout_master_data *llmd = com->lc_data;
3333 struct ptlrpc_thread *mthread = &lfsck->li_thread;
3334 struct ptlrpc_thread *athread = &llmd->llmd_thread;
3335 struct lfsck_layout_req *llr;
3336 struct l_wait_info lwi = { 0 };
3341 memset(lr, 0, sizeof(*lr));
3342 lr->lr_event = LE_START;
3343 lr->lr_valid = LSV_SPEED_LIMIT | LSV_ERROR_HANDLE | LSV_DRYRUN |
3345 lr->lr_speed = bk->lb_speed_limit;
3346 lr->lr_version = bk->lb_version;
3347 lr->lr_param = bk->lb_param;
3348 lr->lr_async_windows = bk->lb_async_windows;
3349 lr->lr_flags = LEF_TO_OST;
3350 if (pos->lp_oit_cookie <= 1)
3351 lr->lr_param |= LPF_RESET;
3353 rc = lfsck_layout_master_notify_others(env, com, lr);
3355 CERROR("%s: fail to notify others for layout start: rc = %d\n",
3356 lfsck_lfsck2name(lfsck), rc);
3360 spin_lock(&llmd->llmd_lock);
3361 thread_set_flags(athread, SVC_RUNNING);
3362 spin_unlock(&llmd->llmd_lock);
3363 wake_up_all(&mthread->t_ctl_waitq);
3366 while (!list_empty(&llmd->llmd_req_list)) {
3367 bool wakeup = false;
3369 if (unlikely(llmd->llmd_exit))
3370 GOTO(cleanup1, rc = llmd->llmd_post_result);
3372 llr = list_entry(llmd->llmd_req_list.next,
3373 struct lfsck_layout_req,
3375 /* Only the lfsck_layout_assistant thread itself can
3376 * remove the "llr" from the head of the list, LFSCK
3377 * engine thread only inserts other new "lld" at the
3378 * end of the list. So it is safe to handle current
3379 * "llr" without the spin_lock. */
3380 rc = lfsck_layout_assistant_handle_one(env, com, llr);
3381 spin_lock(&llmd->llmd_lock);
3382 list_del_init(&llr->llr_list);
3383 if (bk->lb_async_windows != 0 &&
3384 llmd->llmd_prefetched >= bk->lb_async_windows)
3387 llmd->llmd_prefetched--;
3388 spin_unlock(&llmd->llmd_lock);
3390 wake_up_all(&mthread->t_ctl_waitq);
3392 lfsck_layout_req_fini(env, llr);
3393 if (rc < 0 && bk->lb_param & LPF_FAILOUT)
3397 /* Wakeup the master engine if it is waiting in checkpoint. */
3398 wake_up_all(&mthread->t_ctl_waitq);
3400 l_wait_event(athread->t_ctl_waitq,
3401 !lfsck_layout_req_empty(llmd) ||
3403 llmd->llmd_to_post ||
3404 llmd->llmd_to_double_scan,
3407 if (unlikely(llmd->llmd_exit))
3408 GOTO(cleanup1, rc = llmd->llmd_post_result);
3410 if (!list_empty(&llmd->llmd_req_list))
3413 if (llmd->llmd_to_post) {
3414 llmd->llmd_to_post = 0;
3415 LASSERT(llmd->llmd_post_result > 0);
3417 memset(lr, 0, sizeof(*lr));
3418 lr->lr_event = LE_PHASE1_DONE;
3419 lr->lr_status = llmd->llmd_post_result;
3420 rc = lfsck_layout_master_notify_others(env, com, lr);
3422 CERROR("%s: failed to notify others "
3423 "for layout post: rc = %d\n",
3424 lfsck_lfsck2name(lfsck), rc);
3426 /* Wakeup the master engine to go ahead. */
3427 wake_up_all(&mthread->t_ctl_waitq);
3430 if (llmd->llmd_to_double_scan) {
3431 llmd->llmd_to_double_scan = 0;
3432 atomic_inc(&lfsck->li_double_scan_count);
3433 llmd->llmd_in_double_scan = 1;
3434 wake_up_all(&mthread->t_ctl_waitq);
3436 com->lc_new_checked = 0;
3437 com->lc_new_scanned = 0;
3438 com->lc_time_last_checkpoint = cfs_time_current();
3439 com->lc_time_next_checkpoint =
3440 com->lc_time_last_checkpoint +
3441 cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
3443 while (llmd->llmd_in_double_scan) {
3444 struct lfsck_tgt_descs *ltds =
3445 &lfsck->li_ost_descs;
3446 struct lfsck_tgt_desc *ltd;
3448 rc = lfsck_layout_master_query_others(env, com);
3449 if (lfsck_layout_master_to_orphan(llmd))
3455 /* Pull LFSCK status on related targets once
3456 * per 30 seconds if we are not notified. */
3457 lwi = LWI_TIMEOUT_INTERVAL(cfs_time_seconds(30),
3458 cfs_time_seconds(1),
3460 rc = l_wait_event(athread->t_ctl_waitq,
3461 lfsck_layout_master_to_orphan(llmd) ||
3463 !thread_is_running(mthread),
3466 if (unlikely(llmd->llmd_exit ||
3467 !thread_is_running(mthread)))
3468 GOTO(cleanup2, rc = 0);
3470 if (rc == -ETIMEDOUT)
3477 spin_lock(<ds->ltd_lock);
3479 &llmd->llmd_ost_phase2_list)) {
3481 llmd->llmd_ost_phase2_list.next,
3482 struct lfsck_tgt_desc,
3483 ltd_layout_phase_list);
3485 <d->ltd_layout_phase_list);
3486 spin_unlock(<ds->ltd_lock);
3488 if (bk->lb_param & LPF_ALL_TGT) {
3489 rc = lfsck_layout_scan_orphan(
3492 bk->lb_param & LPF_FAILOUT)
3496 if (unlikely(llmd->llmd_exit ||
3497 !thread_is_running(mthread)))
3498 GOTO(cleanup2, rc = 0);
3500 spin_lock(<ds->ltd_lock);
3503 if (list_empty(&llmd->llmd_ost_phase1_list)) {
3504 spin_unlock(<ds->ltd_lock);
3505 GOTO(cleanup2, rc = 1);
3507 spin_unlock(<ds->ltd_lock);
3513 /* Cleanup the unfinished requests. */
3514 spin_lock(&llmd->llmd_lock);
3516 llmd->llmd_assistant_status = rc;
3518 while (!list_empty(&llmd->llmd_req_list)) {
3519 llr = list_entry(llmd->llmd_req_list.next,
3520 struct lfsck_layout_req,
3522 list_del_init(&llr->llr_list);
3523 llmd->llmd_prefetched--;
3524 spin_unlock(&llmd->llmd_lock);
3525 lfsck_layout_req_fini(env, llr);
3526 spin_lock(&llmd->llmd_lock);
3528 spin_unlock(&llmd->llmd_lock);
3530 LASSERTF(llmd->llmd_prefetched == 0, "unmatched prefeteched objs %d\n",
3531 llmd->llmd_prefetched);
3534 memset(lr, 0, sizeof(*lr));
3536 lr->lr_event = LE_PHASE2_DONE;
3538 } else if (rc == 0) {
3539 if (lfsck->li_flags & LPF_ALL_TGT) {
3540 lr->lr_event = LE_STOP;
3541 lr->lr_status = LS_STOPPED;
3543 lr->lr_event = LE_PEER_EXIT;
3544 switch (lfsck->li_status) {
3547 lr->lr_status = LS_CO_PAUSED;
3551 lr->lr_status = LS_CO_STOPPED;
3554 CERROR("%s: unknown status: rc = %d\n",
3555 lfsck_lfsck2name(lfsck),
3557 lr->lr_status = LS_CO_FAILED;
3562 if (lfsck->li_flags & LPF_ALL_TGT) {
3563 lr->lr_event = LE_STOP;
3564 lr->lr_status = LS_FAILED;
3566 lr->lr_event = LE_PEER_EXIT;
3567 lr->lr_status = LS_CO_FAILED;
3571 rc1 = lfsck_layout_master_notify_others(env, com, lr);
3573 CERROR("%s: failed to notify others for layout quit: rc = %d\n",
3574 lfsck_lfsck2name(lfsck), rc1);
3578 /* Under force exit case, some requests may be just freed without
3579 * verification, those objects should be re-handled when next run.
3580 * So not update the on-disk tracing file under such case. */
3581 if (!llmd->llmd_exit)
3582 rc1 = lfsck_layout_double_scan_result(env, com, rc);
3585 if (llmd->llmd_in_double_scan)
3586 atomic_dec(&lfsck->li_double_scan_count);
3588 spin_lock(&llmd->llmd_lock);
3589 llmd->llmd_assistant_status = (rc1 != 0 ? rc1 : rc);
3590 thread_set_flags(athread, SVC_STOPPED);
3591 wake_up_all(&mthread->t_ctl_waitq);
3592 spin_unlock(&llmd->llmd_lock);
3593 lfsck_thread_args_fini(lta);
3599 lfsck_layout_slave_async_interpret(const struct lu_env *env,
3600 struct ptlrpc_request *req,
3603 struct lfsck_layout_slave_async_args *llsaa = args;
3604 struct obd_export *exp = llsaa->llsaa_exp;
3605 struct lfsck_component *com = llsaa->llsaa_com;
3606 struct lfsck_layout_slave_target *llst = llsaa->llsaa_llst;
3607 struct lfsck_layout_slave_data *llsd = com->lc_data;
3611 /* It is quite probably caused by target crash,
3612 * to make the LFSCK can go ahead, assume that
3613 * the target finished the LFSCK prcoessing. */
3616 struct lfsck_reply *lr;
3618 lr = req_capsule_server_get(&req->rq_pill, &RMF_LFSCK_REPLY);
3619 if (lr->lr_status != LS_SCANNING_PHASE1 &&
3620 lr->lr_status != LS_SCANNING_PHASE2)
3624 lfsck_layout_llst_del(llsd, llst);
3625 lfsck_layout_llst_put(llst);
3626 lfsck_component_put(env, com);
3627 class_export_put(exp);
3632 static int lfsck_layout_async_query(const struct lu_env *env,
3633 struct lfsck_component *com,
3634 struct obd_export *exp,
3635 struct lfsck_layout_slave_target *llst,
3636 struct lfsck_request *lr,
3637 struct ptlrpc_request_set *set)
3639 struct lfsck_layout_slave_async_args *llsaa;
3640 struct ptlrpc_request *req;
3641 struct lfsck_request *tmp;
3645 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LFSCK_QUERY);
3649 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_QUERY);
3651 ptlrpc_request_free(req);
3655 tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
3657 ptlrpc_request_set_replen(req);
3659 llsaa = ptlrpc_req_async_args(req);
3660 llsaa->llsaa_exp = exp;
3661 llsaa->llsaa_com = lfsck_component_get(com);
3662 llsaa->llsaa_llst = llst;
3663 req->rq_interpret_reply = lfsck_layout_slave_async_interpret;
3664 ptlrpc_set_add_req(set, req);
3669 static int lfsck_layout_async_notify(const struct lu_env *env,
3670 struct obd_export *exp,
3671 struct lfsck_request *lr,
3672 struct ptlrpc_request_set *set)
3674 struct ptlrpc_request *req;
3675 struct lfsck_request *tmp;
3679 req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LFSCK_NOTIFY);
3683 rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_NOTIFY);
3685 ptlrpc_request_free(req);
3689 tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
3691 ptlrpc_request_set_replen(req);
3692 ptlrpc_set_add_req(set, req);
3698 lfsck_layout_slave_query_master(const struct lu_env *env,
3699 struct lfsck_component *com)
3701 struct lfsck_request *lr = &lfsck_env_info(env)->lti_lr;
3702 struct lfsck_instance *lfsck = com->lc_lfsck;
3703 struct lfsck_layout_slave_data *llsd = com->lc_data;
3704 struct lfsck_layout_slave_target *llst;
3705 struct obd_export *exp;
3706 struct ptlrpc_request_set *set;
3711 set = ptlrpc_prep_set();
3715 memset(lr, 0, sizeof(*lr));
3716 lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
3717 lr->lr_event = LE_QUERY;
3718 lr->lr_active = LT_LAYOUT;
3720 llsd->llsd_touch_gen++;
3721 spin_lock(&llsd->llsd_lock);
3722 while (!list_empty(&llsd->llsd_master_list)) {
3723 llst = list_entry(llsd->llsd_master_list.next,
3724 struct lfsck_layout_slave_target,
3726 if (llst->llst_gen == llsd->llsd_touch_gen)
3729 llst->llst_gen = llsd->llsd_touch_gen;
3730 list_del(&llst->llst_list);
3731 list_add_tail(&llst->llst_list,
3732 &llsd->llsd_master_list);
3733 atomic_inc(&llst->llst_ref);
3734 spin_unlock(&llsd->llsd_lock);
3736 exp = lustre_find_lwp_by_index(lfsck->li_obd->obd_name,
3739 lfsck_layout_llst_del(llsd, llst);
3740 lfsck_layout_llst_put(llst);
3741 spin_lock(&llsd->llsd_lock);
3745 rc = lfsck_layout_async_query(env, com, exp, llst, lr, set);
3747 CERROR("%s: slave fail to query %s for layout: "
3748 "rc = %d\n", lfsck_lfsck2name(lfsck),
3749 exp->exp_obd->obd_name, rc);
3751 lfsck_layout_llst_put(llst);
3752 class_export_put(exp);
3754 spin_lock(&llsd->llsd_lock);
3756 spin_unlock(&llsd->llsd_lock);
3758 rc = ptlrpc_set_wait(set);
3759 ptlrpc_set_destroy(set);
3761 RETURN(rc1 != 0 ? rc1 : rc);
3765 lfsck_layout_slave_notify_master(const struct lu_env *env,
3766 struct lfsck_component *com,
3767 enum lfsck_events event, int result)
3769 struct lfsck_instance *lfsck = com->lc_lfsck;
3770 struct lfsck_layout_slave_data *llsd = com->lc_data;
3771 struct lfsck_request *lr = &lfsck_env_info(env)->lti_lr;
3772 struct lfsck_layout_slave_target *llst;
3773 struct obd_export *exp;
3774 struct ptlrpc_request_set *set;
3778 set = ptlrpc_prep_set();
3782 memset(lr, 0, sizeof(*lr));
3783 lr->lr_event = event;
3784 lr->lr_flags = LEF_FROM_OST;
3785 lr->lr_status = result;
3786 lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
3787 lr->lr_active = LT_LAYOUT;
3788 llsd->llsd_touch_gen++;
3789 spin_lock(&llsd->llsd_lock);
3790 while (!list_empty(&llsd->llsd_master_list)) {
3791 llst = list_entry(llsd->llsd_master_list.next,
3792 struct lfsck_layout_slave_target,
3794 if (llst->llst_gen == llsd->llsd_touch_gen)
3797 llst->llst_gen = llsd->llsd_touch_gen;
3798 list_del(&llst->llst_list);
3799 list_add_tail(&llst->llst_list,
3800 &llsd->llsd_master_list);
3801 atomic_inc(&llst->llst_ref);
3802 spin_unlock(&llsd->llsd_lock);
3804 exp = lustre_find_lwp_by_index(lfsck->li_obd->obd_name,
3807 lfsck_layout_llst_del(llsd, llst);
3808 lfsck_layout_llst_put(llst);
3809 spin_lock(&llsd->llsd_lock);
3813 rc = lfsck_layout_async_notify(env, exp, lr, set);
3815 CERROR("%s: slave fail to notify %s for layout: "
3816 "rc = %d\n", lfsck_lfsck2name(lfsck),
3817 exp->exp_obd->obd_name, rc);
3818 lfsck_layout_llst_put(llst);
3819 class_export_put(exp);
3820 spin_lock(&llsd->llsd_lock);
3822 spin_unlock(&llsd->llsd_lock);
3824 ptlrpc_set_wait(set);
3825 ptlrpc_set_destroy(set);
3832 static int lfsck_layout_reset(const struct lu_env *env,
3833 struct lfsck_component *com, bool init)
3835 struct lfsck_layout *lo = com->lc_file_ram;
3838 down_write(&com->lc_sem);
3840 memset(lo, 0, com->lc_file_size);
3842 __u32 count = lo->ll_success_count;
3843 __u64 last_time = lo->ll_time_last_complete;
3845 memset(lo, 0, com->lc_file_size);
3846 lo->ll_success_count = count;
3847 lo->ll_time_last_complete = last_time;
3850 lo->ll_magic = LFSCK_LAYOUT_MAGIC;
3851 lo->ll_status = LS_INIT;
3853 rc = lfsck_layout_store(env, com);
3854 up_write(&com->lc_sem);
3859 static void lfsck_layout_fail(const struct lu_env *env,
3860 struct lfsck_component *com, bool new_checked)
3862 struct lfsck_layout *lo = com->lc_file_ram;
3864 down_write(&com->lc_sem);
3866 com->lc_new_checked++;
3867 lo->ll_objs_failed_phase1++;
3868 if (lo->ll_pos_first_inconsistent == 0) {
3869 struct lfsck_instance *lfsck = com->lc_lfsck;
3871 lo->ll_pos_first_inconsistent =
3872 lfsck->li_obj_oit->do_index_ops->dio_it.store(env,
3875 up_write(&com->lc_sem);
3878 static int lfsck_layout_master_checkpoint(const struct lu_env *env,
3879 struct lfsck_component *com, bool init)
3881 struct lfsck_instance *lfsck = com->lc_lfsck;
3882 struct lfsck_layout *lo = com->lc_file_ram;
3883 struct lfsck_layout_master_data *llmd = com->lc_data;
3884 struct ptlrpc_thread *mthread = &lfsck->li_thread;
3885 struct ptlrpc_thread *athread = &llmd->llmd_thread;
3886 struct l_wait_info lwi = { 0 };
3889 if (com->lc_new_checked == 0 && !init)
3892 l_wait_event(mthread->t_ctl_waitq,
3893 list_empty(&llmd->llmd_req_list) ||
3894 !thread_is_running(mthread) ||
3895 thread_is_stopped(athread),
3898 if (!thread_is_running(mthread) || thread_is_stopped(athread))
3901 down_write(&com->lc_sem);
3903 lo->ll_pos_latest_start = lfsck->li_pos_current.lp_oit_cookie;
3905 lo->ll_pos_last_checkpoint =
3906 lfsck->li_pos_current.lp_oit_cookie;
3907 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
3908 HALF_SEC - lfsck->li_time_last_checkpoint);
3909 lo->ll_time_last_checkpoint = cfs_time_current_sec();
3910 lo->ll_objs_checked_phase1 += com->lc_new_checked;
3911 com->lc_new_checked = 0;
3914 rc = lfsck_layout_store(env, com);
3915 up_write(&com->lc_sem);
3920 static int lfsck_layout_slave_checkpoint(const struct lu_env *env,
3921 struct lfsck_component *com, bool init)
3923 struct lfsck_instance *lfsck = com->lc_lfsck;
3924 struct lfsck_layout *lo = com->lc_file_ram;
3927 if (com->lc_new_checked == 0 && !init)
3930 down_write(&com->lc_sem);
3933 lo->ll_pos_latest_start = lfsck->li_pos_current.lp_oit_cookie;
3935 lo->ll_pos_last_checkpoint =
3936 lfsck->li_pos_current.lp_oit_cookie;
3937 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
3938 HALF_SEC - lfsck->li_time_last_checkpoint);
3939 lo->ll_time_last_checkpoint = cfs_time_current_sec();
3940 lo->ll_objs_checked_phase1 += com->lc_new_checked;
3941 com->lc_new_checked = 0;
3944 rc = lfsck_layout_store(env, com);
3946 up_write(&com->lc_sem);
3951 static int lfsck_layout_prep(const struct lu_env *env,
3952 struct lfsck_component *com,
3953 struct lfsck_start *start)
3955 struct lfsck_instance *lfsck = com->lc_lfsck;
3956 struct lfsck_layout *lo = com->lc_file_ram;
3957 struct lfsck_position *pos = &com->lc_pos_start;
3959 fid_zero(&pos->lp_dir_parent);
3960 pos->lp_dir_cookie = 0;
3961 if (lo->ll_status == LS_COMPLETED ||
3962 lo->ll_status == LS_PARTIAL ||
3963 /* To handle orphan, must scan from the beginning. */
3964 (start != NULL && start->ls_flags & LPF_ORPHAN)) {
3967 rc = lfsck_layout_reset(env, com, false);
3972 down_write(&com->lc_sem);
3973 lo->ll_time_latest_start = cfs_time_current_sec();
3974 spin_lock(&lfsck->li_lock);
3975 if (lo->ll_flags & LF_SCANNED_ONCE) {
3976 if (!lfsck->li_drop_dryrun ||
3977 lo->ll_pos_first_inconsistent == 0) {
3978 lo->ll_status = LS_SCANNING_PHASE2;
3979 list_del_init(&com->lc_link);
3980 list_add_tail(&com->lc_link,
3981 &lfsck->li_list_double_scan);
3982 pos->lp_oit_cookie = 0;
3986 lo->ll_status = LS_SCANNING_PHASE1;
3987 lo->ll_run_time_phase1 = 0;
3988 lo->ll_run_time_phase2 = 0;
3989 lo->ll_objs_checked_phase1 = 0;
3990 lo->ll_objs_checked_phase2 = 0;
3991 lo->ll_objs_failed_phase1 = 0;
3992 lo->ll_objs_failed_phase2 = 0;
3993 for (i = 0; i < LLIT_MAX; i++)
3994 lo->ll_objs_repaired[i] = 0;
3996 pos->lp_oit_cookie = lo->ll_pos_first_inconsistent;
3997 fid_zero(&com->lc_fid_latest_scanned_phase2);
4000 lo->ll_status = LS_SCANNING_PHASE1;
4001 if (!lfsck->li_drop_dryrun ||
4002 lo->ll_pos_first_inconsistent == 0)
4003 pos->lp_oit_cookie = lo->ll_pos_last_checkpoint + 1;
4005 pos->lp_oit_cookie = lo->ll_pos_first_inconsistent;
4007 spin_unlock(&lfsck->li_lock);
4008 up_write(&com->lc_sem);
4013 static int lfsck_layout_slave_prep(const struct lu_env *env,
4014 struct lfsck_component *com,
4015 struct lfsck_start_param *lsp)
4017 struct lfsck_layout_slave_data *llsd = com->lc_data;
4018 struct lfsck_start *start = lsp->lsp_start;
4021 rc = lfsck_layout_prep(env, com, start);
4022 if (rc != 0 || !lsp->lsp_index_valid)
4025 rc = lfsck_layout_llst_add(llsd, lsp->lsp_index);
4026 if (rc == 0 && start != NULL && start->ls_flags & LPF_ORPHAN) {
4027 LASSERT(!llsd->llsd_rbtree_valid);
4029 write_lock(&llsd->llsd_rb_lock);
4030 rc = lfsck_rbtree_setup(env, com);
4031 write_unlock(&llsd->llsd_rb_lock);
4037 static int lfsck_layout_master_prep(const struct lu_env *env,
4038 struct lfsck_component *com,
4039 struct lfsck_start_param *lsp)
4041 struct lfsck_instance *lfsck = com->lc_lfsck;
4042 struct lfsck_layout_master_data *llmd = com->lc_data;
4043 struct ptlrpc_thread *mthread = &lfsck->li_thread;
4044 struct ptlrpc_thread *athread = &llmd->llmd_thread;
4045 struct lfsck_thread_args *lta;
4049 rc = lfsck_layout_prep(env, com, lsp->lsp_start);
4053 llmd->llmd_assistant_status = 0;
4054 llmd->llmd_post_result = 0;
4055 llmd->llmd_to_post = 0;
4056 llmd->llmd_to_double_scan = 0;
4057 llmd->llmd_in_double_scan = 0;
4058 llmd->llmd_exit = 0;
4059 thread_set_flags(athread, 0);
4061 lta = lfsck_thread_args_init(lfsck, com, lsp);
4063 RETURN(PTR_ERR(lta));
4065 rc = PTR_ERR(kthread_run(lfsck_layout_assistant, lta, "lfsck_layout"));
4066 if (IS_ERR_VALUE(rc)) {
4067 CERROR("%s: Cannot start LFSCK layout assistant thread: "
4068 "rc = %ld\n", lfsck_lfsck2name(lfsck), rc);
4069 lfsck_thread_args_fini(lta);
4071 struct l_wait_info lwi = { 0 };
4073 l_wait_event(mthread->t_ctl_waitq,
4074 thread_is_running(athread) ||
4075 thread_is_stopped(athread),
4077 if (unlikely(!thread_is_running(athread)))
4078 rc = llmd->llmd_assistant_status;
4086 /* Pre-fetch the attribute for each stripe in the given layout EA. */
4087 static int lfsck_layout_scan_stripes(const struct lu_env *env,
4088 struct lfsck_component *com,
4089 struct dt_object *parent,
4090 struct lov_mds_md_v1 *lmm)
4092 struct lfsck_thread_info *info = lfsck_env_info(env);
4093 struct lfsck_instance *lfsck = com->lc_lfsck;
4094 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
4095 struct lfsck_layout *lo = com->lc_file_ram;
4096 struct lfsck_layout_master_data *llmd = com->lc_data;
4097 struct lfsck_layout_object *llo = NULL;
4098 struct lov_ost_data_v1 *objs;
4099 struct lfsck_tgt_descs *ltds = &lfsck->li_ost_descs;
4100 struct ptlrpc_thread *mthread = &lfsck->li_thread;
4101 struct ptlrpc_thread *athread = &llmd->llmd_thread;
4102 struct l_wait_info lwi = { 0 };
4111 buf = lfsck_buf_get(env, &info->lti_old_pfid,
4112 sizeof(struct filter_fid_old));
4113 count = le16_to_cpu(lmm->lmm_stripe_count);
4114 gen = le16_to_cpu(lmm->lmm_layout_gen);
4115 /* Currently, we only support LOV_MAGIC_V1/LOV_MAGIC_V3 which has
4116 * been verified in lfsck_layout_verify_header() already. If some
4117 * new magic introduced in the future, then layout LFSCK needs to
4118 * be updated also. */
4119 magic = le32_to_cpu(lmm->lmm_magic);
4120 if (magic == LOV_MAGIC_V1) {
4121 objs = &(lmm->lmm_objects[0]);
4123 LASSERT(magic == LOV_MAGIC_V3);
4124 objs = &((struct lov_mds_md_v3 *)lmm)->lmm_objects[0];
4127 for (i = 0; i < count; i++, objs++) {
4128 struct lu_fid *fid = &info->lti_fid;
4129 struct ost_id *oi = &info->lti_oi;
4130 struct lfsck_layout_req *llr;
4131 struct lfsck_tgt_desc *tgt = NULL;
4132 struct dt_object *cobj = NULL;
4134 le32_to_cpu(objs->l_ost_idx);
4135 bool wakeup = false;
4137 if (is_dummy_lov_ost_data(objs))
4140 l_wait_event(mthread->t_ctl_waitq,
4141 bk->lb_async_windows == 0 ||
4142 llmd->llmd_prefetched < bk->lb_async_windows ||
4143 !thread_is_running(mthread) ||
4144 thread_is_stopped(athread),
4147 if (unlikely(!thread_is_running(mthread)) ||
4148 thread_is_stopped(athread))
4151 ostid_le_to_cpu(&objs->l_ost_oi, oi);
4152 ostid_to_fid(fid, oi, index);
4153 tgt = lfsck_tgt_get(ltds, index);
4154 if (unlikely(tgt == NULL)) {
4155 CERROR("%s: Cannot talk with OST %x which did not join "
4156 "the layout LFSCK.\n",
4157 lfsck_lfsck2name(lfsck), index);
4158 lo->ll_flags |= LF_INCOMPLETE;
4162 cobj = lfsck_object_find_by_dev(env, tgt->ltd_tgt, fid);
4168 rc = dt_declare_attr_get(env, cobj, BYPASS_CAPA);
4172 rc = dt_declare_xattr_get(env, cobj, buf, XATTR_NAME_FID,
4178 llo = lfsck_layout_object_init(env, parent, gen);
4185 llr = lfsck_layout_req_init(llo, cobj, index, i);
4192 spin_lock(&llmd->llmd_lock);
4193 if (llmd->llmd_assistant_status < 0) {
4194 spin_unlock(&llmd->llmd_lock);
4195 lfsck_layout_req_fini(env, llr);
4197 RETURN(llmd->llmd_assistant_status);
4200 list_add_tail(&llr->llr_list, &llmd->llmd_req_list);
4201 if (llmd->llmd_prefetched == 0)
4204 llmd->llmd_prefetched++;
4205 spin_unlock(&llmd->llmd_lock);
4207 wake_up_all(&athread->t_ctl_waitq);
4210 down_write(&com->lc_sem);
4211 com->lc_new_checked++;
4213 lo->ll_objs_failed_phase1++;
4214 up_write(&com->lc_sem);
4216 if (cobj != NULL && !IS_ERR(cobj))
4217 lu_object_put(env, &cobj->do_lu);
4219 if (likely(tgt != NULL))
4222 if (rc < 0 && bk->lb_param & LPF_FAILOUT)
4229 if (llo != NULL && !IS_ERR(llo))
4230 lfsck_layout_object_put(env, llo);
4235 /* For the given object, read its layout EA locally. For each stripe, pre-fetch
4236 * the OST-object's attribute and generate an structure lfsck_layout_req on the
4237 * list ::llmd_req_list.
4239 * For each request on above list, the lfsck_layout_assistant thread compares
4240 * the OST side attribute with local attribute, if inconsistent, then repair it.
4242 * All above processing is async mode with pipeline. */
4243 static int lfsck_layout_master_exec_oit(const struct lu_env *env,
4244 struct lfsck_component *com,
4245 struct dt_object *obj)
4247 struct lfsck_thread_info *info = lfsck_env_info(env);
4248 struct ost_id *oi = &info->lti_oi;
4249 struct lfsck_layout *lo = com->lc_file_ram;
4250 struct lfsck_layout_master_data *llmd = com->lc_data;
4251 struct lfsck_instance *lfsck = com->lc_lfsck;
4252 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
4253 struct thandle *handle = NULL;
4254 struct lu_buf *buf = &info->lti_big_buf;
4255 struct lov_mds_md_v1 *lmm = NULL;
4256 struct dt_device *dev = lfsck->li_bottom;
4257 struct lustre_handle lh = { 0 };
4258 ssize_t buflen = buf->lb_len;
4260 bool locked = false;
4261 bool stripe = false;
4264 if (!S_ISREG(lfsck_object_type(obj)))
4267 if (llmd->llmd_assistant_status < 0)
4268 GOTO(out, rc = -ESRCH);
4270 fid_to_lmm_oi(lfsck_dto2fid(obj), oi);
4271 lmm_oi_cpu_to_le(oi, oi);
4272 dt_read_lock(env, obj, 0);
4276 rc = lfsck_layout_get_lovea(env, obj, buf, &buflen);
4282 rc = lfsck_layout_verify_header(lmm);
4286 if (memcmp(oi, &lmm->lmm_oi, sizeof(*oi)) == 0)
4287 GOTO(out, stripe = true);
4289 /* Inconsistent lmm_oi, should be repaired. */
4290 CDEBUG(D_LFSCK, "Repair bad lmm_oi for "DFID"\n",
4291 PFID(lfsck_dto2fid(obj)));
4293 if (bk->lb_param & LPF_DRYRUN) {
4294 down_write(&com->lc_sem);
4295 lo->ll_objs_repaired[LLIT_OTHERS - 1]++;
4296 up_write(&com->lc_sem);
4298 GOTO(out, stripe = true);
4301 if (!lustre_handle_is_used(&lh)) {
4302 dt_read_unlock(env, obj);
4304 buf->lb_len = buflen;
4305 rc = lfsck_layout_lock(env, com, obj, &lh,
4306 MDS_INODELOCK_LAYOUT |
4307 MDS_INODELOCK_XATTR);
4311 handle = dt_trans_create(env, dev);
4313 GOTO(out, rc = PTR_ERR(handle));
4315 rc = dt_declare_xattr_set(env, obj, buf, XATTR_NAME_LOV,
4316 LU_XATTR_REPLACE, handle);
4320 rc = dt_trans_start_local(env, dev, handle);
4324 dt_write_lock(env, obj, 0);
4331 rc = dt_xattr_set(env, obj, buf, XATTR_NAME_LOV,
4332 LU_XATTR_REPLACE, handle, BYPASS_CAPA);
4336 down_write(&com->lc_sem);
4337 lo->ll_objs_repaired[LLIT_OTHERS - 1]++;
4338 up_write(&com->lc_sem);
4340 GOTO(out, stripe = true);
4344 if (lustre_handle_is_used(&lh))
4345 dt_write_unlock(env, obj);
4347 dt_read_unlock(env, obj);
4350 if (handle != NULL && !IS_ERR(handle))
4351 dt_trans_stop(env, dev, handle);
4353 lfsck_layout_unlock(&lh);
4355 rc = lfsck_layout_scan_stripes(env, com, obj, lmm);
4357 down_write(&com->lc_sem);
4358 com->lc_new_checked++;
4360 lo->ll_objs_failed_phase1++;
4361 up_write(&com->lc_sem);
4363 buf->lb_len = buflen;
4368 static int lfsck_layout_slave_exec_oit(const struct lu_env *env,
4369 struct lfsck_component *com,
4370 struct dt_object *obj)
4372 struct lfsck_instance *lfsck = com->lc_lfsck;
4373 struct lfsck_layout *lo = com->lc_file_ram;
4374 const struct lu_fid *fid = lfsck_dto2fid(obj);
4375 struct lfsck_layout_slave_data *llsd = com->lc_data;
4376 struct lfsck_layout_seq *lls;
4382 LASSERT(llsd != NULL);
4384 lfsck_rbtree_update_bitmap(env, com, fid, false);
4386 down_write(&com->lc_sem);
4387 if (fid_is_idif(fid))
4389 else if (!fid_is_norm(fid) ||
4390 !fid_is_for_ostobj(env, lfsck->li_next, obj, fid))
4391 GOTO(unlock, rc = 0);
4394 com->lc_new_checked++;
4396 lls = lfsck_layout_seq_lookup(llsd, seq);
4399 if (unlikely(lls == NULL))
4400 GOTO(unlock, rc = -ENOMEM);
4402 INIT_LIST_HEAD(&lls->lls_list);
4404 rc = lfsck_layout_lastid_load(env, com, lls);
4406 lo->ll_objs_failed_phase1++;
4411 lfsck_layout_seq_insert(llsd, lls);
4414 if (unlikely(fid_is_last_id(fid)))
4415 GOTO(unlock, rc = 0);
4418 if (oid > lls->lls_lastid_known)
4419 lls->lls_lastid_known = oid;
4421 if (oid > lls->lls_lastid) {
4422 if (!(lo->ll_flags & LF_CRASHED_LASTID)) {
4423 /* OFD may create new objects during LFSCK scanning. */
4424 rc = lfsck_layout_lastid_reload(env, com, lls);
4425 if (unlikely(rc != 0))
4426 CWARN("%s: failed to reload LAST_ID for "LPX64
4428 lfsck_lfsck2name(com->lc_lfsck),
4430 if (oid <= lls->lls_lastid)
4431 GOTO(unlock, rc = 0);
4433 LASSERT(lfsck->li_out_notify != NULL);
4435 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
4436 LE_LASTID_REBUILDING);
4437 lo->ll_flags |= LF_CRASHED_LASTID;
4440 lls->lls_lastid = oid;
4444 GOTO(unlock, rc = 0);
4447 up_write(&com->lc_sem);
4452 static int lfsck_layout_exec_dir(const struct lu_env *env,
4453 struct lfsck_component *com,
4454 struct dt_object *obj,
4455 struct lu_dirent *ent)
4460 static int lfsck_layout_master_post(const struct lu_env *env,
4461 struct lfsck_component *com,
4462 int result, bool init)
4464 struct lfsck_instance *lfsck = com->lc_lfsck;
4465 struct lfsck_layout *lo = com->lc_file_ram;
4466 struct lfsck_layout_master_data *llmd = com->lc_data;
4467 struct ptlrpc_thread *mthread = &lfsck->li_thread;
4468 struct ptlrpc_thread *athread = &llmd->llmd_thread;
4469 struct l_wait_info lwi = { 0 };
4474 llmd->llmd_post_result = result;
4475 llmd->llmd_to_post = 1;
4476 if (llmd->llmd_post_result <= 0)
4477 llmd->llmd_exit = 1;
4479 wake_up_all(&athread->t_ctl_waitq);
4480 l_wait_event(mthread->t_ctl_waitq,
4481 (result > 0 && list_empty(&llmd->llmd_req_list)) ||
4482 thread_is_stopped(athread),
4485 if (llmd->llmd_assistant_status < 0)
4486 result = llmd->llmd_assistant_status;
4488 down_write(&com->lc_sem);
4489 spin_lock(&lfsck->li_lock);
4490 /* When LFSCK failed, there may be some prefetched objects those are
4491 * not been processed yet, we do not know the exactly position, then
4492 * just restart from last check-point next time. */
4493 if (!init && !llmd->llmd_exit)
4494 lo->ll_pos_last_checkpoint =
4495 lfsck->li_pos_current.lp_oit_cookie;
4498 lo->ll_status = LS_SCANNING_PHASE2;
4499 lo->ll_flags |= LF_SCANNED_ONCE;
4500 lo->ll_flags &= ~LF_UPGRADE;
4501 list_del_init(&com->lc_link);
4502 list_add_tail(&com->lc_link, &lfsck->li_list_double_scan);
4503 } else if (result == 0) {
4504 lo->ll_status = lfsck->li_status;
4505 if (lo->ll_status == 0)
4506 lo->ll_status = LS_STOPPED;
4507 if (lo->ll_status != LS_PAUSED) {
4508 list_del_init(&com->lc_link);
4509 list_add_tail(&com->lc_link, &lfsck->li_list_idle);
4512 lo->ll_status = LS_FAILED;
4513 list_del_init(&com->lc_link);
4514 list_add_tail(&com->lc_link, &lfsck->li_list_idle);
4516 spin_unlock(&lfsck->li_lock);
4519 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
4520 HALF_SEC - lfsck->li_time_last_checkpoint);
4521 lo->ll_time_last_checkpoint = cfs_time_current_sec();
4522 lo->ll_objs_checked_phase1 += com->lc_new_checked;
4523 com->lc_new_checked = 0;
4526 rc = lfsck_layout_store(env, com);
4527 up_write(&com->lc_sem);
4532 static int lfsck_layout_slave_post(const struct lu_env *env,
4533 struct lfsck_component *com,
4534 int result, bool init)
4536 struct lfsck_instance *lfsck = com->lc_lfsck;
4537 struct lfsck_layout *lo = com->lc_file_ram;
4541 rc = lfsck_layout_lastid_store(env, com);
4545 LASSERT(lfsck->li_out_notify != NULL);
4547 down_write(&com->lc_sem);
4549 spin_lock(&lfsck->li_lock);
4551 lo->ll_pos_last_checkpoint =
4552 lfsck->li_pos_current.lp_oit_cookie;
4554 lo->ll_status = LS_SCANNING_PHASE2;
4555 lo->ll_flags |= LF_SCANNED_ONCE;
4556 if (lo->ll_flags & LF_CRASHED_LASTID) {
4558 lo->ll_flags &= ~LF_CRASHED_LASTID;
4560 lo->ll_flags &= ~LF_UPGRADE;
4561 list_del_init(&com->lc_link);
4562 list_add_tail(&com->lc_link, &lfsck->li_list_double_scan);
4563 } else if (result == 0) {
4564 lo->ll_status = lfsck->li_status;
4565 if (lo->ll_status == 0)
4566 lo->ll_status = LS_STOPPED;
4567 if (lo->ll_status != LS_PAUSED) {
4568 list_del_init(&com->lc_link);
4569 list_add_tail(&com->lc_link, &lfsck->li_list_idle);
4572 lo->ll_status = LS_FAILED;
4573 list_del_init(&com->lc_link);
4574 list_add_tail(&com->lc_link, &lfsck->li_list_idle);
4576 spin_unlock(&lfsck->li_lock);
4579 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
4583 lo->ll_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
4584 HALF_SEC - lfsck->li_time_last_checkpoint);
4585 lo->ll_time_last_checkpoint = cfs_time_current_sec();
4586 lo->ll_objs_checked_phase1 += com->lc_new_checked;
4587 com->lc_new_checked = 0;
4590 rc = lfsck_layout_store(env, com);
4592 up_write(&com->lc_sem);
4594 lfsck_layout_slave_notify_master(env, com, LE_PHASE1_DONE, result);
4597 lfsck_rbtree_cleanup(env, com);
4602 static int lfsck_layout_dump(const struct lu_env *env,
4603 struct lfsck_component *com, char *buf, int len)
4605 struct lfsck_instance *lfsck = com->lc_lfsck;
4606 struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
4607 struct lfsck_layout *lo = com->lc_file_ram;
4612 down_read(&com->lc_sem);
4613 rc = snprintf(buf, len,
4614 "name: lfsck_layout\n"
4620 lfsck_status2names(lo->ll_status));
4626 rc = lfsck_bits_dump(&buf, &len, lo->ll_flags, lfsck_flags_names,
4631 rc = lfsck_bits_dump(&buf, &len, bk->lb_param, lfsck_param_names,
4636 rc = lfsck_time_dump(&buf, &len, lo->ll_time_last_complete,
4637 "time_since_last_completed");
4641 rc = lfsck_time_dump(&buf, &len, lo->ll_time_latest_start,
4642 "time_since_latest_start");
4646 rc = lfsck_time_dump(&buf, &len, lo->ll_time_last_checkpoint,
4647 "time_since_last_checkpoint");
4651 rc = snprintf(buf, len,
4652 "latest_start_position: "LPU64"\n"
4653 "last_checkpoint_position: "LPU64"\n"
4654 "first_failure_position: "LPU64"\n",
4655 lo->ll_pos_latest_start,
4656 lo->ll_pos_last_checkpoint,
4657 lo->ll_pos_first_inconsistent);
4664 rc = snprintf(buf, len,
4665 "success_count: %u\n"
4666 "repaired_dangling: "LPU64"\n"
4667 "repaired_unmatched_pair: "LPU64"\n"
4668 "repaired_multiple_referenced: "LPU64"\n"
4669 "repaired_orphan: "LPU64"\n"
4670 "repaired_inconsistent_owner: "LPU64"\n"
4671 "repaired_others: "LPU64"\n"
4672 "skipped: "LPU64"\n"
4673 "failed_phase1: "LPU64"\n"
4674 "failed_phase2: "LPU64"\n",
4675 lo->ll_success_count,
4676 lo->ll_objs_repaired[LLIT_DANGLING - 1],
4677 lo->ll_objs_repaired[LLIT_UNMATCHED_PAIR - 1],
4678 lo->ll_objs_repaired[LLIT_MULTIPLE_REFERENCED - 1],
4679 lo->ll_objs_repaired[LLIT_ORPHAN - 1],
4680 lo->ll_objs_repaired[LLIT_INCONSISTENT_OWNER - 1],
4681 lo->ll_objs_repaired[LLIT_OTHERS - 1],
4682 lo->ll_objs_skipped,
4683 lo->ll_objs_failed_phase1,
4684 lo->ll_objs_failed_phase2);
4691 if (lo->ll_status == LS_SCANNING_PHASE1) {
4693 const struct dt_it_ops *iops;
4694 cfs_duration_t duration = cfs_time_current() -
4695 lfsck->li_time_last_checkpoint;
4696 __u64 checked = lo->ll_objs_checked_phase1 + com->lc_new_checked;
4697 __u64 speed = checked;
4698 __u64 new_checked = com->lc_new_checked * HZ;
4699 __u32 rtime = lo->ll_run_time_phase1 +
4700 cfs_duration_sec(duration + HALF_SEC);
4703 do_div(new_checked, duration);
4705 do_div(speed, rtime);
4706 rc = snprintf(buf, len,
4707 "checked_phase1: "LPU64"\n"
4708 "checked_phase2: "LPU64"\n"
4709 "run_time_phase1: %u seconds\n"
4710 "run_time_phase2: %u seconds\n"
4711 "average_speed_phase1: "LPU64" items/sec\n"
4712 "average_speed_phase2: N/A\n"
4713 "real-time_speed_phase1: "LPU64" items/sec\n"
4714 "real-time_speed_phase2: N/A\n",
4716 lo->ll_objs_checked_phase2,
4718 lo->ll_run_time_phase2,
4727 LASSERT(lfsck->li_di_oit != NULL);
4729 iops = &lfsck->li_obj_oit->do_index_ops->dio_it;
4731 /* The low layer otable-based iteration position may NOT
4732 * exactly match the layout-based directory traversal
4733 * cookie. Generally, it is not a serious issue. But the
4734 * caller should NOT make assumption on that. */
4735 pos = iops->store(env, lfsck->li_di_oit);
4736 if (!lfsck->li_current_oit_processed)
4738 rc = snprintf(buf, len, "current_position: "LPU64"\n", pos);
4744 } else if (lo->ll_status == LS_SCANNING_PHASE2) {
4745 cfs_duration_t duration = cfs_time_current() -
4746 lfsck->li_time_last_checkpoint;
4747 __u64 checked = lo->ll_objs_checked_phase1 + com->lc_new_checked;
4748 __u64 speed = checked;
4749 __u64 new_checked = com->lc_new_checked * HZ;
4750 __u32 rtime = lo->ll_run_time_phase1 +
4751 cfs_duration_sec(duration + HALF_SEC);
4754 do_div(new_checked, duration);
4756 do_div(speed, rtime);
4757 rc = snprintf(buf, len,
4758 "checked_phase1: "LPU64"\n"
4759 "checked_phase2: "LPU64"\n"
4760 "run_time_phase1: %u seconds\n"
4761 "run_time_phase2: %u seconds\n"
4762 "average_speed_phase1: "LPU64" items/sec\n"
4763 "average_speed_phase2: N/A\n"
4764 "real-time_speed_phase1: "LPU64" items/sec\n"
4765 "real-time_speed_phase2: N/A\n"
4766 "current_position: "DFID"\n",
4768 lo->ll_objs_checked_phase2,
4770 lo->ll_run_time_phase2,
4773 PFID(&com->lc_fid_latest_scanned_phase2));
4780 __u64 speed1 = lo->ll_objs_checked_phase1;
4781 __u64 speed2 = lo->ll_objs_checked_phase2;
4783 if (lo->ll_run_time_phase1 != 0)
4784 do_div(speed1, lo->ll_run_time_phase1);
4785 if (lo->ll_run_time_phase2 != 0)
4786 do_div(speed2, lo->ll_run_time_phase2);
4787 rc = snprintf(buf, len,
4788 "checked_phase1: "LPU64"\n"
4789 "checked_phase2: "LPU64"\n"
4790 "run_time_phase1: %u seconds\n"
4791 "run_time_phase2: %u seconds\n"
4792 "average_speed_phase1: "LPU64" items/sec\n"
4793 "average_speed_phase2: "LPU64" objs/sec\n"
4794 "real-time_speed_phase1: N/A\n"
4795 "real-time_speed_phase2: N/A\n"
4796 "current_position: N/A\n",
4797 lo->ll_objs_checked_phase1,
4798 lo->ll_objs_checked_phase2,
4799 lo->ll_run_time_phase1,
4800 lo->ll_run_time_phase2,
4812 up_read(&com->lc_sem);
4817 static int lfsck_layout_master_double_scan(const struct lu_env *env,
4818 struct lfsck_component *com)
4820 struct lfsck_layout_master_data *llmd = com->lc_data;
4821 struct ptlrpc_thread *mthread = &com->lc_lfsck->li_thread;
4822 struct ptlrpc_thread *athread = &llmd->llmd_thread;
4823 struct lfsck_layout *lo = com->lc_file_ram;
4824 struct l_wait_info lwi = { 0 };
4826 if (unlikely(lo->ll_status != LS_SCANNING_PHASE2))
4829 llmd->llmd_to_double_scan = 1;
4830 wake_up_all(&athread->t_ctl_waitq);
4831 l_wait_event(mthread->t_ctl_waitq,
4832 llmd->llmd_in_double_scan ||
4833 thread_is_stopped(athread),
4835 if (llmd->llmd_assistant_status < 0)
4836 return llmd->llmd_assistant_status;
4841 static int lfsck_layout_slave_double_scan(const struct lu_env *env,
4842 struct lfsck_component *com)
4844 struct lfsck_instance *lfsck = com->lc_lfsck;
4845 struct lfsck_layout_slave_data *llsd = com->lc_data;
4846 struct lfsck_layout *lo = com->lc_file_ram;
4847 struct ptlrpc_thread *thread = &lfsck->li_thread;
4851 if (unlikely(lo->ll_status != LS_SCANNING_PHASE2)) {
4852 lfsck_rbtree_cleanup(env, com);
4853 lfsck_layout_slave_notify_master(env, com, LE_PHASE2_DONE, 0);
4857 atomic_inc(&lfsck->li_double_scan_count);
4859 com->lc_new_checked = 0;
4860 com->lc_new_scanned = 0;
4861 com->lc_time_last_checkpoint = cfs_time_current();
4862 com->lc_time_next_checkpoint = com->lc_time_last_checkpoint +
4863 cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
4866 struct l_wait_info lwi = LWI_TIMEOUT(cfs_time_seconds(30),
4869 rc = lfsck_layout_slave_query_master(env, com);
4870 if (list_empty(&llsd->llsd_master_list)) {
4871 if (unlikely(!thread_is_running(thread)))
4882 rc = l_wait_event(thread->t_ctl_waitq,
4883 !thread_is_running(thread) ||
4884 list_empty(&llsd->llsd_master_list),
4886 if (unlikely(!thread_is_running(thread)))
4889 if (rc == -ETIMEDOUT)
4892 GOTO(done, rc = (rc < 0 ? rc : 1));
4896 rc = lfsck_layout_double_scan_result(env, com, rc);
4898 lfsck_rbtree_cleanup(env, com);
4899 lfsck_layout_slave_notify_master(env, com, LE_PHASE2_DONE, rc);
4900 if (atomic_dec_and_test(&lfsck->li_double_scan_count))
4901 wake_up_all(&lfsck->li_thread.t_ctl_waitq);
4906 static void lfsck_layout_master_data_release(const struct lu_env *env,
4907 struct lfsck_component *com)
4909 struct lfsck_layout_master_data *llmd = com->lc_data;
4910 struct lfsck_instance *lfsck = com->lc_lfsck;
4911 struct lfsck_tgt_descs *ltds;
4912 struct lfsck_tgt_desc *ltd;
4913 struct lfsck_tgt_desc *next;
4915 LASSERT(llmd != NULL);
4916 LASSERT(thread_is_init(&llmd->llmd_thread) ||
4917 thread_is_stopped(&llmd->llmd_thread));
4918 LASSERT(list_empty(&llmd->llmd_req_list));
4920 com->lc_data = NULL;
4922 ltds = &lfsck->li_ost_descs;
4923 spin_lock(<ds->ltd_lock);
4924 list_for_each_entry_safe(ltd, next, &llmd->llmd_ost_phase1_list,
4925 ltd_layout_phase_list) {
4926 list_del_init(<d->ltd_layout_phase_list);
4928 list_for_each_entry_safe(ltd, next, &llmd->llmd_ost_phase2_list,
4929 ltd_layout_phase_list) {
4930 list_del_init(<d->ltd_layout_phase_list);
4932 list_for_each_entry_safe(ltd, next, &llmd->llmd_ost_list,
4934 list_del_init(<d->ltd_layout_list);
4936 list_for_each_entry_safe(ltd, next, &llmd->llmd_mdt_phase1_list,
4937 ltd_layout_phase_list) {
4938 list_del_init(<d->ltd_layout_phase_list);
4940 list_for_each_entry_safe(ltd, next, &llmd->llmd_mdt_phase2_list,
4941 ltd_layout_phase_list) {
4942 list_del_init(<d->ltd_layout_phase_list);
4944 list_for_each_entry_safe(ltd, next, &llmd->llmd_mdt_list,
4946 list_del_init(<d->ltd_layout_list);
4948 spin_unlock(<ds->ltd_lock);
4953 static void lfsck_layout_slave_data_release(const struct lu_env *env,
4954 struct lfsck_component *com)
4956 struct lfsck_layout_slave_data *llsd = com->lc_data;
4957 struct lfsck_layout_seq *lls;
4958 struct lfsck_layout_seq *next;
4959 struct lfsck_layout_slave_target *llst;
4960 struct lfsck_layout_slave_target *tmp;
4962 LASSERT(llsd != NULL);
4964 list_for_each_entry_safe(lls, next, &llsd->llsd_seq_list,
4966 list_del_init(&lls->lls_list);
4967 lfsck_object_put(env, lls->lls_lastid_obj);
4971 list_for_each_entry_safe(llst, tmp, &llsd->llsd_master_list,
4973 list_del_init(&llst->llst_list);
4977 lfsck_rbtree_cleanup(env, com);
4978 com->lc_data = NULL;
4982 static void lfsck_layout_master_quit(const struct lu_env *env,
4983 struct lfsck_component *com)
4985 struct lfsck_layout_master_data *llmd = com->lc_data;
4986 struct ptlrpc_thread *mthread = &com->lc_lfsck->li_thread;
4987 struct ptlrpc_thread *athread = &llmd->llmd_thread;
4988 struct l_wait_info lwi = { 0 };
4990 llmd->llmd_exit = 1;
4991 wake_up_all(&athread->t_ctl_waitq);
4992 l_wait_event(mthread->t_ctl_waitq,
4993 thread_is_init(athread) ||
4994 thread_is_stopped(athread),
4998 static void lfsck_layout_slave_quit(const struct lu_env *env,
4999 struct lfsck_component *com)
5001 lfsck_rbtree_cleanup(env, com);
5004 static int lfsck_layout_master_in_notify(const struct lu_env *env,
5005 struct lfsck_component *com,
5006 struct lfsck_request *lr)
5008 struct lfsck_instance *lfsck = com->lc_lfsck;
5009 struct lfsck_layout *lo = com->lc_file_ram;
5010 struct lfsck_layout_master_data *llmd = com->lc_data;
5011 struct lfsck_tgt_descs *ltds;
5012 struct lfsck_tgt_desc *ltd;
5016 if (lr->lr_event != LE_PHASE1_DONE &&
5017 lr->lr_event != LE_PHASE2_DONE &&
5018 lr->lr_event != LE_PEER_EXIT)
5021 if (lr->lr_flags & LEF_FROM_OST)
5022 ltds = &lfsck->li_ost_descs;
5024 ltds = &lfsck->li_mdt_descs;
5025 spin_lock(<ds->ltd_lock);
5026 ltd = LTD_TGT(ltds, lr->lr_index);
5028 spin_unlock(<ds->ltd_lock);
5033 list_del_init(<d->ltd_layout_phase_list);
5034 switch (lr->lr_event) {
5035 case LE_PHASE1_DONE:
5036 if (lr->lr_status <= 0) {
5037 ltd->ltd_layout_done = 1;
5038 list_del_init(<d->ltd_layout_list);
5039 CWARN("%s: %s %x failed/stopped at phase1: rc = %d.\n",
5040 lfsck_lfsck2name(lfsck),
5041 (lr->lr_flags & LEF_TO_OST) ? "OST" : "MDT",
5042 ltd->ltd_index, lr->lr_status);
5043 lo->ll_flags |= LF_INCOMPLETE;
5048 if (lr->lr_flags & LEF_FROM_OST) {
5049 if (list_empty(<d->ltd_layout_list))
5050 list_add_tail(<d->ltd_layout_list,
5051 &llmd->llmd_ost_list);
5052 list_add_tail(<d->ltd_layout_phase_list,
5053 &llmd->llmd_ost_phase2_list);
5055 if (list_empty(<d->ltd_layout_list))
5056 list_add_tail(<d->ltd_layout_list,
5057 &llmd->llmd_mdt_list);
5058 list_add_tail(<d->ltd_layout_phase_list,
5059 &llmd->llmd_mdt_phase2_list);
5062 case LE_PHASE2_DONE:
5063 ltd->ltd_layout_done = 1;
5064 list_del_init(<d->ltd_layout_list);
5068 ltd->ltd_layout_done = 1;
5069 list_del_init(<d->ltd_layout_list);
5070 if (!(lfsck->li_bookmark_ram.lb_param & LPF_FAILOUT)) {
5071 CWARN("%s: the peer %s %x exit layout LFSCK.\n",
5072 lfsck_lfsck2name(lfsck),
5073 (lr->lr_flags & LEF_TO_OST) ? "OST" : "MDT",
5075 lo->ll_flags |= LF_INCOMPLETE;
5081 spin_unlock(<ds->ltd_lock);
5083 if (fail && lfsck->li_bookmark_ram.lb_param & LPF_FAILOUT) {
5084 struct lfsck_stop *stop = &lfsck_env_info(env)->lti_stop;
5086 memset(stop, 0, sizeof(*stop));
5087 stop->ls_status = lr->lr_status;
5088 stop->ls_flags = lr->lr_param & ~LPF_BROADCAST;
5089 lfsck_stop(env, lfsck->li_bottom, stop);
5090 } else if (lfsck_layout_master_to_orphan(llmd)) {
5091 wake_up_all(&llmd->llmd_thread.t_ctl_waitq);
5097 static int lfsck_layout_slave_in_notify(const struct lu_env *env,
5098 struct lfsck_component *com,
5099 struct lfsck_request *lr)
5101 struct lfsck_instance *lfsck = com->lc_lfsck;
5102 struct lfsck_layout_slave_data *llsd = com->lc_data;
5103 struct lfsck_layout_slave_target *llst;
5106 if (lr->lr_event == LE_FID_ACCESSED) {
5107 lfsck_rbtree_update_bitmap(env, com, &lr->lr_fid, true);
5112 if (lr->lr_event == LE_CONDITIONAL_DESTROY) {
5115 rc = lfsck_layout_slave_conditional_destroy(env, com, lr);
5120 if (lr->lr_event != LE_PHASE2_DONE && lr->lr_event != LE_PEER_EXIT)
5123 llst = lfsck_layout_llst_find_and_del(llsd, lr->lr_index, true);
5127 lfsck_layout_llst_put(llst);
5128 if (list_empty(&llsd->llsd_master_list))
5129 wake_up_all(&lfsck->li_thread.t_ctl_waitq);
5131 if (lr->lr_event == LE_PEER_EXIT &&
5132 lfsck->li_bookmark_ram.lb_param & LPF_FAILOUT) {
5133 struct lfsck_stop *stop = &lfsck_env_info(env)->lti_stop;
5135 memset(stop, 0, sizeof(*stop));
5136 stop->ls_status = lr->lr_status;
5137 stop->ls_flags = lr->lr_param & ~LPF_BROADCAST;
5138 lfsck_stop(env, lfsck->li_bottom, stop);
5144 static int lfsck_layout_query(const struct lu_env *env,
5145 struct lfsck_component *com)
5147 struct lfsck_layout *lo = com->lc_file_ram;
5149 return lo->ll_status;
5152 static int lfsck_layout_master_stop_notify(const struct lu_env *env,
5153 struct lfsck_component *com,
5154 struct lfsck_tgt_descs *ltds,
5155 struct lfsck_tgt_desc *ltd,
5156 struct ptlrpc_request_set *set)
5158 struct lfsck_thread_info *info = lfsck_env_info(env);
5159 struct lfsck_async_interpret_args *laia = &info->lti_laia;
5160 struct lfsck_request *lr = &info->lti_lr;
5161 struct lfsck_instance *lfsck = com->lc_lfsck;
5164 spin_lock(<ds->ltd_lock);
5165 if (list_empty(<d->ltd_layout_list)) {
5166 LASSERT(list_empty(<d->ltd_layout_phase_list));
5167 spin_unlock(<ds->ltd_lock);
5172 list_del_init(<d->ltd_layout_phase_list);
5173 list_del_init(<d->ltd_layout_list);
5174 spin_unlock(<ds->ltd_lock);
5176 memset(lr, 0, sizeof(*lr));
5177 lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
5178 lr->lr_event = LE_PEER_EXIT;
5179 lr->lr_active = LT_LAYOUT;
5180 lr->lr_status = LS_CO_PAUSED;
5181 if (ltds == &lfsck->li_ost_descs)
5182 lr->lr_flags = LEF_TO_OST;
5184 laia->laia_com = com;
5185 laia->laia_ltds = ltds;
5186 atomic_inc(<d->ltd_ref);
5187 laia->laia_ltd = ltd;
5189 laia->laia_shared = 0;
5191 rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
5192 lfsck_layout_master_async_interpret,
5193 laia, LFSCK_NOTIFY);
5195 CERROR("%s: Fail to notify %s %x for co-stop: rc = %d\n",
5196 lfsck_lfsck2name(lfsck),
5197 (lr->lr_flags & LEF_TO_OST) ? "OST" : "MDT",
5198 ltd->ltd_index, rc);
5205 /* with lfsck::li_lock held */
5206 static int lfsck_layout_slave_join(const struct lu_env *env,
5207 struct lfsck_component *com,
5208 struct lfsck_start_param *lsp)
5210 struct lfsck_instance *lfsck = com->lc_lfsck;
5211 struct lfsck_layout_slave_data *llsd = com->lc_data;
5212 struct lfsck_layout_slave_target *llst;
5213 struct lfsck_start *start = lsp->lsp_start;
5217 if (!lsp->lsp_index_valid || start == NULL ||
5218 !(start->ls_flags & LPF_ALL_TGT) ||
5219 !(lfsck->li_bookmark_ram.lb_param & LPF_ALL_TGT))
5222 spin_unlock(&lfsck->li_lock);
5223 rc = lfsck_layout_llst_add(llsd, lsp->lsp_index);
5224 spin_lock(&lfsck->li_lock);
5225 if (rc == 0 && !thread_is_running(&lfsck->li_thread)) {
5226 spin_unlock(&lfsck->li_lock);
5227 llst = lfsck_layout_llst_find_and_del(llsd, lsp->lsp_index,
5230 lfsck_layout_llst_put(llst);
5231 spin_lock(&lfsck->li_lock);
5238 static struct lfsck_operations lfsck_layout_master_ops = {
5239 .lfsck_reset = lfsck_layout_reset,
5240 .lfsck_fail = lfsck_layout_fail,
5241 .lfsck_checkpoint = lfsck_layout_master_checkpoint,
5242 .lfsck_prep = lfsck_layout_master_prep,
5243 .lfsck_exec_oit = lfsck_layout_master_exec_oit,
5244 .lfsck_exec_dir = lfsck_layout_exec_dir,
5245 .lfsck_post = lfsck_layout_master_post,
5246 .lfsck_interpret = lfsck_layout_master_async_interpret,
5247 .lfsck_dump = lfsck_layout_dump,
5248 .lfsck_double_scan = lfsck_layout_master_double_scan,
5249 .lfsck_data_release = lfsck_layout_master_data_release,
5250 .lfsck_quit = lfsck_layout_master_quit,
5251 .lfsck_in_notify = lfsck_layout_master_in_notify,
5252 .lfsck_query = lfsck_layout_query,
5253 .lfsck_stop_notify = lfsck_layout_master_stop_notify,
5256 static struct lfsck_operations lfsck_layout_slave_ops = {
5257 .lfsck_reset = lfsck_layout_reset,
5258 .lfsck_fail = lfsck_layout_fail,
5259 .lfsck_checkpoint = lfsck_layout_slave_checkpoint,
5260 .lfsck_prep = lfsck_layout_slave_prep,
5261 .lfsck_exec_oit = lfsck_layout_slave_exec_oit,
5262 .lfsck_exec_dir = lfsck_layout_exec_dir,
5263 .lfsck_post = lfsck_layout_slave_post,
5264 .lfsck_dump = lfsck_layout_dump,
5265 .lfsck_double_scan = lfsck_layout_slave_double_scan,
5266 .lfsck_data_release = lfsck_layout_slave_data_release,
5267 .lfsck_quit = lfsck_layout_slave_quit,
5268 .lfsck_in_notify = lfsck_layout_slave_in_notify,
5269 .lfsck_query = lfsck_layout_query,
5270 .lfsck_join = lfsck_layout_slave_join,
5273 int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck)
5275 struct lfsck_component *com;
5276 struct lfsck_layout *lo;
5277 struct dt_object *root = NULL;
5278 struct dt_object *obj;
5286 INIT_LIST_HEAD(&com->lc_link);
5287 INIT_LIST_HEAD(&com->lc_link_dir);
5288 init_rwsem(&com->lc_sem);
5289 atomic_set(&com->lc_ref, 1);
5290 com->lc_lfsck = lfsck;
5291 com->lc_type = LT_LAYOUT;
5292 if (lfsck->li_master) {
5293 struct lfsck_layout_master_data *llmd;
5295 com->lc_ops = &lfsck_layout_master_ops;
5296 OBD_ALLOC_PTR(llmd);
5298 GOTO(out, rc = -ENOMEM);
5300 INIT_LIST_HEAD(&llmd->llmd_req_list);
5301 spin_lock_init(&llmd->llmd_lock);
5302 INIT_LIST_HEAD(&llmd->llmd_ost_list);
5303 INIT_LIST_HEAD(&llmd->llmd_ost_phase1_list);
5304 INIT_LIST_HEAD(&llmd->llmd_ost_phase2_list);
5305 INIT_LIST_HEAD(&llmd->llmd_mdt_list);
5306 INIT_LIST_HEAD(&llmd->llmd_mdt_phase1_list);
5307 INIT_LIST_HEAD(&llmd->llmd_mdt_phase2_list);
5308 init_waitqueue_head(&llmd->llmd_thread.t_ctl_waitq);
5309 com->lc_data = llmd;
5311 struct lfsck_layout_slave_data *llsd;
5313 com->lc_ops = &lfsck_layout_slave_ops;
5314 OBD_ALLOC_PTR(llsd);
5316 GOTO(out, rc = -ENOMEM);
5318 INIT_LIST_HEAD(&llsd->llsd_seq_list);
5319 INIT_LIST_HEAD(&llsd->llsd_master_list);
5320 spin_lock_init(&llsd->llsd_lock);
5321 llsd->llsd_rb_root = RB_ROOT;
5322 rwlock_init(&llsd->llsd_rb_lock);
5323 com->lc_data = llsd;
5325 com->lc_file_size = sizeof(*lo);
5326 OBD_ALLOC(com->lc_file_ram, com->lc_file_size);
5327 if (com->lc_file_ram == NULL)
5328 GOTO(out, rc = -ENOMEM);
5330 OBD_ALLOC(com->lc_file_disk, com->lc_file_size);
5331 if (com->lc_file_disk == NULL)
5332 GOTO(out, rc = -ENOMEM);
5334 root = dt_locate(env, lfsck->li_bottom, &lfsck->li_local_root_fid);
5336 GOTO(out, rc = PTR_ERR(root));
5338 if (unlikely(!dt_try_as_dir(env, root)))
5339 GOTO(out, rc = -ENOTDIR);
5341 obj = local_file_find_or_create(env, lfsck->li_los, root,
5343 S_IFREG | S_IRUGO | S_IWUSR);
5345 GOTO(out, rc = PTR_ERR(obj));
5348 rc = lfsck_layout_load(env, com);
5350 rc = lfsck_layout_reset(env, com, true);
5351 else if (rc == -ENOENT)
5352 rc = lfsck_layout_init(env, com);
5357 lo = com->lc_file_ram;
5358 switch (lo->ll_status) {
5364 spin_lock(&lfsck->li_lock);
5365 list_add_tail(&com->lc_link, &lfsck->li_list_idle);
5366 spin_unlock(&lfsck->li_lock);
5369 CERROR("%s: unknown lfsck_layout status: rc = %u\n",
5370 lfsck_lfsck2name(lfsck), lo->ll_status);
5372 case LS_SCANNING_PHASE1:
5373 case LS_SCANNING_PHASE2:
5374 /* No need to store the status to disk right now.
5375 * If the system crashed before the status stored,
5376 * it will be loaded back when next time. */
5377 lo->ll_status = LS_CRASHED;
5378 lo->ll_flags |= LF_INCOMPLETE;
5385 spin_lock(&lfsck->li_lock);
5386 list_add_tail(&com->lc_link, &lfsck->li_list_scan);
5387 spin_unlock(&lfsck->li_lock);
5391 if (lo->ll_flags & LF_CRASHED_LASTID) {
5392 LASSERT(lfsck->li_out_notify != NULL);
5394 lfsck->li_out_notify(env, lfsck->li_out_notify_data,
5395 LE_LASTID_REBUILDING);
5401 if (root != NULL && !IS_ERR(root))
5402 lu_object_put(env, &root->do_lu);
5405 lfsck_component_cleanup(env, com);
5410 struct lfsck_orphan_it {
5411 struct lfsck_component *loi_com;
5412 struct lfsck_rbtree_node *loi_lrn;
5413 struct lfsck_layout_slave_target *loi_llst;
5414 struct lu_fid loi_key;
5415 struct lu_orphan_rec loi_rec;
5417 unsigned int loi_over:1;
5420 static int lfsck_fid_match_idx(const struct lu_env *env,
5421 struct lfsck_instance *lfsck,
5422 const struct lu_fid *fid, int idx)
5424 struct seq_server_site *ss;
5425 struct lu_server_fld *sf;
5426 struct lu_seq_range range = { 0 };
5429 /* All abnormal cases will be returned to MDT0. */
5430 if (!fid_is_norm(fid)) {
5437 ss = lu_site2seq(lfsck->li_bottom->dd_lu_dev.ld_site);
5438 if (unlikely(ss == NULL))
5441 sf = ss->ss_server_fld;
5442 LASSERT(sf != NULL);
5444 fld_range_set_any(&range);
5445 rc = fld_server_lookup(env, sf, fid_seq(fid), &range);
5449 if (!fld_range_is_mdt(&range))
5452 if (range.lsr_index == idx)
5458 static void lfsck_layout_destroy_orphan(const struct lu_env *env,
5459 struct dt_device *dev,
5460 struct dt_object *obj)
5462 struct thandle *handle;
5466 handle = dt_trans_create(env, dev);
5470 rc = dt_declare_ref_del(env, obj, handle);
5474 rc = dt_declare_destroy(env, obj, handle);
5478 rc = dt_trans_start_local(env, dev, handle);
5482 dt_write_lock(env, obj, 0);
5483 rc = dt_ref_del(env, obj, handle);
5485 rc = dt_destroy(env, obj, handle);
5486 dt_write_unlock(env, obj);
5491 dt_trans_stop(env, dev, handle);
5496 static int lfsck_orphan_index_lookup(const struct lu_env *env,
5497 struct dt_object *dt,
5499 const struct dt_key *key,
5500 struct lustre_capa *capa)
5505 static int lfsck_orphan_index_declare_insert(const struct lu_env *env,
5506 struct dt_object *dt,
5507 const struct dt_rec *rec,
5508 const struct dt_key *key,
5509 struct thandle *handle)
5514 static int lfsck_orphan_index_insert(const struct lu_env *env,
5515 struct dt_object *dt,
5516 const struct dt_rec *rec,
5517 const struct dt_key *key,
5518 struct thandle *handle,
5519 struct lustre_capa *capa,
5525 static int lfsck_orphan_index_declare_delete(const struct lu_env *env,
5526 struct dt_object *dt,
5527 const struct dt_key *key,
5528 struct thandle *handle)
5533 static int lfsck_orphan_index_delete(const struct lu_env *env,
5534 struct dt_object *dt,
5535 const struct dt_key *key,
5536 struct thandle *handle,
5537 struct lustre_capa *capa)
5542 static struct dt_it *lfsck_orphan_it_init(const struct lu_env *env,
5543 struct dt_object *dt,
5545 struct lustre_capa *capa)
5547 struct dt_device *dev = lu2dt_dev(dt->do_lu.lo_dev);
5548 struct lfsck_instance *lfsck;
5549 struct lfsck_component *com = NULL;
5550 struct lfsck_layout_slave_data *llsd;
5551 struct lfsck_orphan_it *it = NULL;
5555 lfsck = lfsck_instance_find(dev, true, false);
5556 if (unlikely(lfsck == NULL))
5557 RETURN(ERR_PTR(-ENODEV));
5559 com = lfsck_component_find(lfsck, LT_LAYOUT);
5560 if (unlikely(com == NULL))
5561 GOTO(out, rc = -ENOENT);
5563 llsd = com->lc_data;
5564 if (!llsd->llsd_rbtree_valid)
5565 GOTO(out, rc = -ESRCH);
5569 GOTO(out, rc = -ENOMEM);
5571 it->loi_llst = lfsck_layout_llst_find_and_del(llsd, attr, false);
5572 if (it->loi_llst == NULL)
5573 GOTO(out, rc = -ENODEV);
5575 if (dev->dd_record_fid_accessed) {
5576 /* The first iteration against the rbtree, scan the whole rbtree
5577 * to remove the nodes which do NOT need to be handled. */
5578 write_lock(&llsd->llsd_rb_lock);
5579 if (dev->dd_record_fid_accessed) {
5580 struct rb_node *node;
5581 struct rb_node *next;
5582 struct lfsck_rbtree_node *lrn;
5584 /* No need to record the fid accessing anymore. */
5585 dev->dd_record_fid_accessed = 0;
5587 node = rb_first(&llsd->llsd_rb_root);
5588 while (node != NULL) {
5589 next = rb_next(node);
5590 lrn = rb_entry(node, struct lfsck_rbtree_node,
5592 if (atomic_read(&lrn->lrn_known_count) <=
5593 atomic_read(&lrn->lrn_accessed_count)) {
5594 rb_erase(node, &llsd->llsd_rb_root);
5595 lfsck_rbtree_free(lrn);
5600 write_unlock(&llsd->llsd_rb_lock);
5603 /* read lock the rbtree when init, and unlock when fini */
5604 read_lock(&llsd->llsd_rb_lock);
5612 lfsck_component_put(env, com);
5613 lfsck_instance_put(env, lfsck);
5618 it = (struct lfsck_orphan_it *)ERR_PTR(rc);
5621 return (struct dt_it *)it;
5624 static void lfsck_orphan_it_fini(const struct lu_env *env,
5627 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5628 struct lfsck_component *com = it->loi_com;
5629 struct lfsck_layout_slave_data *llsd;
5630 struct lfsck_layout_slave_target *llst;
5633 llsd = com->lc_data;
5634 read_unlock(&llsd->llsd_rb_lock);
5635 llst = it->loi_llst;
5636 LASSERT(llst != NULL);
5638 /* Save the key and hash for iterate next. */
5639 llst->llst_fid = it->loi_key;
5640 llst->llst_hash = it->loi_hash;
5641 lfsck_layout_llst_put(llst);
5642 lfsck_component_put(env, com);
5648 * \retval +1: the iteration finished
5649 * \retval 0: on success, not finished
5650 * \retval -ve: on error
5652 static int lfsck_orphan_it_next(const struct lu_env *env,
5655 struct lfsck_thread_info *info = lfsck_env_info(env);
5656 struct filter_fid_old *pfid = &info->lti_old_pfid;
5657 struct lu_attr *la = &info->lti_la;
5658 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5659 struct lu_fid *key = &it->loi_key;
5660 struct lu_orphan_rec *rec = &it->loi_rec;
5661 struct lfsck_component *com = it->loi_com;
5662 struct lfsck_instance *lfsck = com->lc_lfsck;
5663 struct lfsck_layout_slave_data *llsd = com->lc_data;
5664 struct dt_object *obj;
5665 struct lfsck_rbtree_node *lrn;
5669 __u32 idx = it->loi_llst->llst_index;
5679 lrn = lfsck_rbtree_search(llsd, key, &exact);
5687 key->f_seq = lrn->lrn_seq;
5688 key->f_oid = lrn->lrn_first_oid;
5693 if (unlikely(key->f_oid == 0)) {
5700 lrn->lrn_first_oid + LFSCK_RBTREE_BITMAP_WIDTH) {
5706 if (unlikely(atomic_read(&lrn->lrn_known_count) <=
5707 atomic_read(&lrn->lrn_accessed_count))) {
5708 struct rb_node *next = rb_next(&lrn->lrn_node);
5710 while (next != NULL) {
5711 lrn = rb_entry(next, struct lfsck_rbtree_node,
5713 if (atomic_read(&lrn->lrn_known_count) >
5714 atomic_read(&lrn->lrn_accessed_count))
5716 next = rb_next(next);
5725 key->f_seq = lrn->lrn_seq;
5726 key->f_oid = lrn->lrn_first_oid;
5730 pos = key->f_oid - lrn->lrn_first_oid;
5733 pos = find_next_bit(lrn->lrn_known_bitmap,
5734 LFSCK_RBTREE_BITMAP_WIDTH, pos);
5735 if (pos >= LFSCK_RBTREE_BITMAP_WIDTH) {
5736 key->f_oid = lrn->lrn_first_oid + pos;
5737 if (unlikely(key->f_oid < lrn->lrn_first_oid)) {
5745 if (test_bit(pos, lrn->lrn_accessed_bitmap)) {
5750 key->f_oid = lrn->lrn_first_oid + pos;
5751 obj = lfsck_object_find(env, lfsck, key);
5754 if (rc == -ENOENT) {
5761 dt_read_lock(env, obj, 0);
5762 if (!dt_object_exists(obj)) {
5763 dt_read_unlock(env, obj);
5764 lfsck_object_put(env, obj);
5769 rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
5773 rc = dt_xattr_get(env, obj, lfsck_buf_get(env, pfid, sizeof(*pfid)),
5774 XATTR_NAME_FID, BYPASS_CAPA);
5775 if (rc == -ENODATA) {
5776 /* For the pre-created OST-object, update the bitmap to avoid
5777 * others LFSCK (second phase) iteration to touch it again. */
5778 if (la->la_ctime == 0) {
5779 if (!test_and_set_bit(pos, lrn->lrn_accessed_bitmap))
5780 atomic_inc(&lrn->lrn_accessed_count);
5782 /* For the race between repairing dangling referenced
5783 * MDT-object and unlink the file, it may left orphan
5784 * OST-object there. Destroy it now! */
5785 if (unlikely(!(la->la_mode & S_ISUID))) {
5786 dt_read_unlock(env, obj);
5787 lfsck_layout_destroy_orphan(env,
5790 lfsck_object_put(env, obj);
5794 } else if (idx == 0) {
5795 /* If the orphan OST-object has no parent information,
5796 * regard it as referenced by the MDT-object on MDT0. */
5797 fid_zero(&rec->lor_fid);
5798 rec->lor_uid = la->la_uid;
5799 rec->lor_gid = la->la_gid;
5803 dt_read_unlock(env, obj);
5804 lfsck_object_put(env, obj);
5812 if (rc != sizeof(struct filter_fid) &&
5813 rc != sizeof(struct filter_fid_old))
5814 GOTO(out, rc = -EINVAL);
5816 fid_le_to_cpu(&rec->lor_fid, &pfid->ff_parent);
5817 /* In fact, the ff_parent::f_ver is not the real parent FID::f_ver,
5818 * instead, it is the OST-object index in its parent MDT-object
5820 save = rec->lor_fid.f_ver;
5821 rec->lor_fid.f_ver = 0;
5822 rc = lfsck_fid_match_idx(env, lfsck, &rec->lor_fid, idx);
5823 /* If the orphan OST-object does not claim the MDT, then next.
5825 * If we do not know whether it matches or not, then return it
5826 * to the MDT for further check. */
5828 dt_read_unlock(env, obj);
5829 lfsck_object_put(env, obj);
5834 rec->lor_fid.f_ver = save;
5835 rec->lor_uid = la->la_uid;
5836 rec->lor_gid = la->la_gid;
5838 CDEBUG(D_LFSCK, "%s: return orphan "DFID", PFID "DFID", owner %u:%u\n",
5839 lfsck_lfsck2name(com->lc_lfsck), PFID(key), PFID(&rec->lor_fid),
5840 rec->lor_uid, rec->lor_gid);
5845 dt_read_unlock(env, obj);
5846 lfsck_object_put(env, obj);
5854 * \retval +1: locate to the exactly position
5855 * \retval 0: cannot locate to the exactly position,
5856 * call next() to move to a valid position.
5857 * \retval -ve: on error
5859 static int lfsck_orphan_it_get(const struct lu_env *env,
5861 const struct dt_key *key)
5863 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5866 it->loi_key = *(struct lu_fid *)key;
5867 rc = lfsck_orphan_it_next(env, di);
5877 static void lfsck_orphan_it_put(const struct lu_env *env,
5882 static struct dt_key *lfsck_orphan_it_key(const struct lu_env *env,
5883 const struct dt_it *di)
5885 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5887 return (struct dt_key *)&it->loi_key;
5890 static int lfsck_orphan_it_key_size(const struct lu_env *env,
5891 const struct dt_it *di)
5893 return sizeof(struct lu_fid);
5896 static int lfsck_orphan_it_rec(const struct lu_env *env,
5897 const struct dt_it *di,
5901 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5903 *(struct lu_orphan_rec *)rec = it->loi_rec;
5908 static __u64 lfsck_orphan_it_store(const struct lu_env *env,
5909 const struct dt_it *di)
5911 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5913 return it->loi_hash;
5917 * \retval +1: locate to the exactly position
5918 * \retval 0: cannot locate to the exactly position,
5919 * call next() to move to a valid position.
5920 * \retval -ve: on error
5922 static int lfsck_orphan_it_load(const struct lu_env *env,
5923 const struct dt_it *di,
5926 struct lfsck_orphan_it *it = (struct lfsck_orphan_it *)di;
5927 struct lfsck_layout_slave_target *llst = it->loi_llst;
5930 LASSERT(llst != NULL);
5932 if (hash != llst->llst_hash) {
5933 CWARN("%s: the given hash "LPU64" for orphan iteration does "
5934 "not match the one when fini "LPU64", to be reset.\n",
5935 lfsck_lfsck2name(it->loi_com->lc_lfsck), hash,
5937 fid_zero(&llst->llst_fid);
5938 llst->llst_hash = 0;
5941 it->loi_key = llst->llst_fid;
5942 it->loi_hash = llst->llst_hash;
5943 rc = lfsck_orphan_it_next(env, (struct dt_it *)di);
5953 static int lfsck_orphan_it_key_rec(const struct lu_env *env,
5954 const struct dt_it *di,
5960 const struct dt_index_operations lfsck_orphan_index_ops = {
5961 .dio_lookup = lfsck_orphan_index_lookup,
5962 .dio_declare_insert = lfsck_orphan_index_declare_insert,
5963 .dio_insert = lfsck_orphan_index_insert,
5964 .dio_declare_delete = lfsck_orphan_index_declare_delete,
5965 .dio_delete = lfsck_orphan_index_delete,
5967 .init = lfsck_orphan_it_init,
5968 .fini = lfsck_orphan_it_fini,
5969 .get = lfsck_orphan_it_get,
5970 .put = lfsck_orphan_it_put,
5971 .next = lfsck_orphan_it_next,
5972 .key = lfsck_orphan_it_key,
5973 .key_size = lfsck_orphan_it_key_size,
5974 .rec = lfsck_orphan_it_rec,
5975 .store = lfsck_orphan_it_store,
5976 .load = lfsck_orphan_it_load,
5977 .key_rec = lfsck_orphan_it_key_rec,