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35#include "ubifs.h"
36
37
38
39
40
41
42
43enum {
44 REPLAY_DELETION = 1,
45 REPLAY_REF = 2,
46};
47
48
49
50
51
52
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55
56
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58
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64
65
66struct replay_entry {
67 int lnum;
68 int offs;
69 int len;
70 unsigned long long sqnum;
71 int flags;
72 struct rb_node rb;
73 union ubifs_key key;
74 union {
75 struct qstr nm;
76 struct {
77 loff_t old_size;
78 loff_t new_size;
79 };
80 struct {
81 int free;
82 int dirty;
83 };
84 };
85};
86
87
88
89
90
91
92
93
94struct bud_entry {
95 struct list_head list;
96 struct ubifs_bud *bud;
97 int free;
98 unsigned long long sqnum;
99};
100
101
102
103
104
105
106static int set_bud_lprops(struct ubifs_info *c, struct replay_entry *r)
107{
108 const struct ubifs_lprops *lp;
109 int err = 0, dirty;
110
111 ubifs_get_lprops(c);
112
113 lp = ubifs_lpt_lookup_dirty(c, r->lnum);
114 if (IS_ERR(lp)) {
115 err = PTR_ERR(lp);
116 goto out;
117 }
118
119 dirty = lp->dirty;
120 if (r->offs == 0 && (lp->free != c->leb_size || lp->dirty != 0)) {
121
122
123
124
125
126
127
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136
137
138
139 dbg_mnt("bud LEB %d was GC'd (%d free, %d dirty)", r->lnum,
140 lp->free, lp->dirty);
141 dbg_gc("bud LEB %d was GC'd (%d free, %d dirty)", r->lnum,
142 lp->free, lp->dirty);
143 dirty -= c->leb_size - lp->free;
144
145
146
147
148
149
150
151 if (dirty != 0)
152 dbg_msg("LEB %d lp: %d free %d dirty "
153 "replay: %d free %d dirty", r->lnum, lp->free,
154 lp->dirty, r->free, r->dirty);
155 }
156 lp = ubifs_change_lp(c, lp, r->free, dirty + r->dirty,
157 lp->flags | LPROPS_TAKEN, 0);
158 if (IS_ERR(lp)) {
159 err = PTR_ERR(lp);
160 goto out;
161 }
162out:
163 ubifs_release_lprops(c);
164 return err;
165}
166
167
168
169
170
171
172static int trun_remove_range(struct ubifs_info *c, struct replay_entry *r)
173{
174 unsigned min_blk, max_blk;
175 union ubifs_key min_key, max_key;
176 ino_t ino;
177
178 min_blk = r->new_size / UBIFS_BLOCK_SIZE;
179 if (r->new_size & (UBIFS_BLOCK_SIZE - 1))
180 min_blk += 1;
181
182 max_blk = r->old_size / UBIFS_BLOCK_SIZE;
183 if ((r->old_size & (UBIFS_BLOCK_SIZE - 1)) == 0)
184 max_blk -= 1;
185
186 ino = key_inum(c, &r->key);
187
188 data_key_init(c, &min_key, ino, min_blk);
189 data_key_init(c, &max_key, ino, max_blk);
190
191 return ubifs_tnc_remove_range(c, &min_key, &max_key);
192}
193
194
195
196
197
198
199
200
201static int apply_replay_entry(struct ubifs_info *c, struct replay_entry *r)
202{
203 int err, deletion = ((r->flags & REPLAY_DELETION) != 0);
204
205 dbg_mnt("LEB %d:%d len %d flgs %d sqnum %llu %s", r->lnum,
206 r->offs, r->len, r->flags, r->sqnum, DBGKEY(&r->key));
207
208
209 c->replay_sqnum = r->sqnum;
210
211 if (r->flags & REPLAY_REF)
212 err = set_bud_lprops(c, r);
213 else if (is_hash_key(c, &r->key)) {
214 if (deletion)
215 err = ubifs_tnc_remove_nm(c, &r->key, &r->nm);
216 else
217 err = ubifs_tnc_add_nm(c, &r->key, r->lnum, r->offs,
218 r->len, &r->nm);
219 } else {
220 if (deletion)
221 switch (key_type(c, &r->key)) {
222 case UBIFS_INO_KEY:
223 {
224 ino_t inum = key_inum(c, &r->key);
225
226 err = ubifs_tnc_remove_ino(c, inum);
227 break;
228 }
229 case UBIFS_TRUN_KEY:
230 err = trun_remove_range(c, r);
231 break;
232 default:
233 err = ubifs_tnc_remove(c, &r->key);
234 break;
235 }
236 else
237 err = ubifs_tnc_add(c, &r->key, r->lnum, r->offs,
238 r->len);
239 if (err)
240 return err;
241
242 if (c->need_recovery)
243 err = ubifs_recover_size_accum(c, &r->key, deletion,
244 r->new_size);
245 }
246
247 return err;
248}
249
250
251
252
253
254
255
256static void destroy_replay_tree(struct ubifs_info *c)
257{
258 struct rb_node *this = c->replay_tree.rb_node;
259 struct replay_entry *r;
260
261 while (this) {
262 if (this->rb_left) {
263 this = this->rb_left;
264 continue;
265 } else if (this->rb_right) {
266 this = this->rb_right;
267 continue;
268 }
269 r = rb_entry(this, struct replay_entry, rb);
270 this = rb_parent(this);
271 if (this) {
272 if (this->rb_left == &r->rb)
273 this->rb_left = NULL;
274 else
275 this->rb_right = NULL;
276 }
277 if (is_hash_key(c, &r->key))
278 kfree(r->nm.name);
279 kfree(r);
280 }
281 c->replay_tree = RB_ROOT;
282}
283
284
285
286
287
288
289
290
291
292static int apply_replay_tree(struct ubifs_info *c)
293{
294 struct rb_node *this = rb_first(&c->replay_tree);
295
296 while (this) {
297 struct replay_entry *r;
298 int err;
299
300 cond_resched();
301
302 r = rb_entry(this, struct replay_entry, rb);
303 err = apply_replay_entry(c, r);
304 if (err)
305 return err;
306 this = rb_next(this);
307 }
308 return 0;
309}
310
311
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323
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325
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330
331static int insert_node(struct ubifs_info *c, int lnum, int offs, int len,
332 union ubifs_key *key, unsigned long long sqnum,
333 int deletion, int *used, loff_t old_size,
334 loff_t new_size)
335{
336 struct rb_node **p = &c->replay_tree.rb_node, *parent = NULL;
337 struct replay_entry *r;
338
339 if (key_inum(c, key) >= c->highest_inum)
340 c->highest_inum = key_inum(c, key);
341
342 dbg_mnt("add LEB %d:%d, key %s", lnum, offs, DBGKEY(key));
343 while (*p) {
344 parent = *p;
345 r = rb_entry(parent, struct replay_entry, rb);
346 if (sqnum < r->sqnum) {
347 p = &(*p)->rb_left;
348 continue;
349 } else if (sqnum > r->sqnum) {
350 p = &(*p)->rb_right;
351 continue;
352 }
353 ubifs_err("duplicate sqnum in replay");
354 return -EINVAL;
355 }
356
357 r = kzalloc(sizeof(struct replay_entry), GFP_KERNEL);
358 if (!r)
359 return -ENOMEM;
360
361 if (!deletion)
362 *used += ALIGN(len, 8);
363 r->lnum = lnum;
364 r->offs = offs;
365 r->len = len;
366 r->sqnum = sqnum;
367 r->flags = (deletion ? REPLAY_DELETION : 0);
368 r->old_size = old_size;
369 r->new_size = new_size;
370 key_copy(c, key, &r->key);
371
372 rb_link_node(&r->rb, parent, p);
373 rb_insert_color(&r->rb, &c->replay_tree);
374 return 0;
375}
376
377
378
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380
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396
397static int insert_dent(struct ubifs_info *c, int lnum, int offs, int len,
398 union ubifs_key *key, const char *name, int nlen,
399 unsigned long long sqnum, int deletion, int *used)
400{
401 struct rb_node **p = &c->replay_tree.rb_node, *parent = NULL;
402 struct replay_entry *r;
403 char *nbuf;
404
405 if (key_inum(c, key) >= c->highest_inum)
406 c->highest_inum = key_inum(c, key);
407
408 dbg_mnt("add LEB %d:%d, key %s", lnum, offs, DBGKEY(key));
409 while (*p) {
410 parent = *p;
411 r = rb_entry(parent, struct replay_entry, rb);
412 if (sqnum < r->sqnum) {
413 p = &(*p)->rb_left;
414 continue;
415 }
416 if (sqnum > r->sqnum) {
417 p = &(*p)->rb_right;
418 continue;
419 }
420 ubifs_err("duplicate sqnum in replay");
421 return -EINVAL;
422 }
423
424 r = kzalloc(sizeof(struct replay_entry), GFP_KERNEL);
425 if (!r)
426 return -ENOMEM;
427 nbuf = kmalloc(nlen + 1, GFP_KERNEL);
428 if (!nbuf) {
429 kfree(r);
430 return -ENOMEM;
431 }
432
433 if (!deletion)
434 *used += ALIGN(len, 8);
435 r->lnum = lnum;
436 r->offs = offs;
437 r->len = len;
438 r->sqnum = sqnum;
439 r->nm.len = nlen;
440 memcpy(nbuf, name, nlen);
441 nbuf[nlen] = '\0';
442 r->nm.name = nbuf;
443 r->flags = (deletion ? REPLAY_DELETION : 0);
444 key_copy(c, key, &r->key);
445
446 ubifs_assert(!*p);
447 rb_link_node(&r->rb, parent, p);
448 rb_insert_color(&r->rb, &c->replay_tree);
449 return 0;
450}
451
452
453
454
455
456
457
458
459
460int ubifs_validate_entry(struct ubifs_info *c,
461 const struct ubifs_dent_node *dent)
462{
463 int key_type = key_type_flash(c, dent->key);
464 int nlen = le16_to_cpu(dent->nlen);
465
466 if (le32_to_cpu(dent->ch.len) != nlen + UBIFS_DENT_NODE_SZ + 1 ||
467 dent->type >= UBIFS_ITYPES_CNT ||
468 nlen > UBIFS_MAX_NLEN || dent->name[nlen] != 0 ||
469 strnlen(dent->name, nlen) != nlen ||
470 le64_to_cpu(dent->inum) > MAX_INUM) {
471 ubifs_err("bad %s node", key_type == UBIFS_DENT_KEY ?
472 "directory entry" : "extended attribute entry");
473 return -EINVAL;
474 }
475
476 if (key_type != UBIFS_DENT_KEY && key_type != UBIFS_XENT_KEY) {
477 ubifs_err("bad key type %d", key_type);
478 return -EINVAL;
479 }
480
481 return 0;
482}
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497static int replay_bud(struct ubifs_info *c, int lnum, int offs, int jhead,
498 int *free, int *dirty)
499{
500 int err = 0, used = 0;
501 struct ubifs_scan_leb *sleb;
502 struct ubifs_scan_node *snod;
503 struct ubifs_bud *bud;
504
505 dbg_mnt("replay bud LEB %d, head %d", lnum, jhead);
506 if (c->need_recovery)
507 sleb = ubifs_recover_leb(c, lnum, offs, c->sbuf, jhead != GCHD);
508 else
509 sleb = ubifs_scan(c, lnum, offs, c->sbuf, 0);
510 if (IS_ERR(sleb))
511 return PTR_ERR(sleb);
512
513
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527
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530
531
532
533
534
535 list_for_each_entry(snod, &sleb->nodes, list) {
536 int deletion = 0;
537
538 cond_resched();
539
540 if (snod->sqnum >= SQNUM_WATERMARK) {
541 ubifs_err("file system's life ended");
542 goto out_dump;
543 }
544
545 if (snod->sqnum > c->max_sqnum)
546 c->max_sqnum = snod->sqnum;
547
548 switch (snod->type) {
549 case UBIFS_INO_NODE:
550 {
551 struct ubifs_ino_node *ino = snod->node;
552 loff_t new_size = le64_to_cpu(ino->size);
553
554 if (le32_to_cpu(ino->nlink) == 0)
555 deletion = 1;
556 err = insert_node(c, lnum, snod->offs, snod->len,
557 &snod->key, snod->sqnum, deletion,
558 &used, 0, new_size);
559 break;
560 }
561 case UBIFS_DATA_NODE:
562 {
563 struct ubifs_data_node *dn = snod->node;
564 loff_t new_size = le32_to_cpu(dn->size) +
565 key_block(c, &snod->key) *
566 UBIFS_BLOCK_SIZE;
567
568 err = insert_node(c, lnum, snod->offs, snod->len,
569 &snod->key, snod->sqnum, deletion,
570 &used, 0, new_size);
571 break;
572 }
573 case UBIFS_DENT_NODE:
574 case UBIFS_XENT_NODE:
575 {
576 struct ubifs_dent_node *dent = snod->node;
577
578 err = ubifs_validate_entry(c, dent);
579 if (err)
580 goto out_dump;
581
582 err = insert_dent(c, lnum, snod->offs, snod->len,
583 &snod->key, dent->name,
584 le16_to_cpu(dent->nlen), snod->sqnum,
585 !le64_to_cpu(dent->inum), &used);
586 break;
587 }
588 case UBIFS_TRUN_NODE:
589 {
590 struct ubifs_trun_node *trun = snod->node;
591 loff_t old_size = le64_to_cpu(trun->old_size);
592 loff_t new_size = le64_to_cpu(trun->new_size);
593 union ubifs_key key;
594
595
596 if (old_size < 0 || old_size > c->max_inode_sz ||
597 new_size < 0 || new_size > c->max_inode_sz ||
598 old_size <= new_size) {
599 ubifs_err("bad truncation node");
600 goto out_dump;
601 }
602
603
604
605
606
607 trun_key_init(c, &key, le32_to_cpu(trun->inum));
608 err = insert_node(c, lnum, snod->offs, snod->len,
609 &key, snod->sqnum, 1, &used,
610 old_size, new_size);
611 break;
612 }
613 default:
614 ubifs_err("unexpected node type %d in bud LEB %d:%d",
615 snod->type, lnum, snod->offs);
616 err = -EINVAL;
617 goto out_dump;
618 }
619 if (err)
620 goto out;
621 }
622
623 bud = ubifs_search_bud(c, lnum);
624 if (!bud)
625 BUG();
626
627 ubifs_assert(sleb->endpt - offs >= used);
628 ubifs_assert(sleb->endpt % c->min_io_size == 0);
629
630 if (sleb->endpt + c->min_io_size <= c->leb_size &&
631 !(c->vfs_sb->s_flags & MS_RDONLY))
632 err = ubifs_wbuf_seek_nolock(&c->jheads[jhead].wbuf, lnum,
633 sleb->endpt, UBI_SHORTTERM);
634
635 *dirty = sleb->endpt - offs - used;
636 *free = c->leb_size - sleb->endpt;
637
638out:
639 ubifs_scan_destroy(sleb);
640 return err;
641
642out_dump:
643 ubifs_err("bad node is at LEB %d:%d", lnum, snod->offs);
644 dbg_dump_node(c, snod->node);
645 ubifs_scan_destroy(sleb);
646 return -EINVAL;
647}
648
649
650
651
652
653
654
655
656
657
658
659
660
661static int insert_ref_node(struct ubifs_info *c, int lnum, int offs,
662 unsigned long long sqnum, int free, int dirty)
663{
664 struct rb_node **p = &c->replay_tree.rb_node, *parent = NULL;
665 struct replay_entry *r;
666
667 dbg_mnt("add ref LEB %d:%d", lnum, offs);
668 while (*p) {
669 parent = *p;
670 r = rb_entry(parent, struct replay_entry, rb);
671 if (sqnum < r->sqnum) {
672 p = &(*p)->rb_left;
673 continue;
674 } else if (sqnum > r->sqnum) {
675 p = &(*p)->rb_right;
676 continue;
677 }
678 ubifs_err("duplicate sqnum in replay tree");
679 return -EINVAL;
680 }
681
682 r = kzalloc(sizeof(struct replay_entry), GFP_KERNEL);
683 if (!r)
684 return -ENOMEM;
685
686 r->lnum = lnum;
687 r->offs = offs;
688 r->sqnum = sqnum;
689 r->flags = REPLAY_REF;
690 r->free = free;
691 r->dirty = dirty;
692
693 rb_link_node(&r->rb, parent, p);
694 rb_insert_color(&r->rb, &c->replay_tree);
695 return 0;
696}
697
698
699
700
701
702
703
704
705static int replay_buds(struct ubifs_info *c)
706{
707 struct bud_entry *b;
708 int err, uninitialized_var(free), uninitialized_var(dirty);
709
710 list_for_each_entry(b, &c->replay_buds, list) {
711 err = replay_bud(c, b->bud->lnum, b->bud->start, b->bud->jhead,
712 &free, &dirty);
713 if (err)
714 return err;
715 err = insert_ref_node(c, b->bud->lnum, b->bud->start, b->sqnum,
716 free, dirty);
717 if (err)
718 return err;
719 }
720
721 return 0;
722}
723
724
725
726
727
728static void destroy_bud_list(struct ubifs_info *c)
729{
730 struct bud_entry *b;
731
732 while (!list_empty(&c->replay_buds)) {
733 b = list_entry(c->replay_buds.next, struct bud_entry, list);
734 list_del(&b->list);
735 kfree(b);
736 }
737}
738
739
740
741
742
743
744
745
746
747
748
749
750static int add_replay_bud(struct ubifs_info *c, int lnum, int offs, int jhead,
751 unsigned long long sqnum)
752{
753 struct ubifs_bud *bud;
754 struct bud_entry *b;
755
756 dbg_mnt("add replay bud LEB %d:%d, head %d", lnum, offs, jhead);
757
758 bud = kmalloc(sizeof(struct ubifs_bud), GFP_KERNEL);
759 if (!bud)
760 return -ENOMEM;
761
762 b = kmalloc(sizeof(struct bud_entry), GFP_KERNEL);
763 if (!b) {
764 kfree(bud);
765 return -ENOMEM;
766 }
767
768 bud->lnum = lnum;
769 bud->start = offs;
770 bud->jhead = jhead;
771 ubifs_add_bud(c, bud);
772
773 b->bud = bud;
774 b->sqnum = sqnum;
775 list_add_tail(&b->list, &c->replay_buds);
776
777 return 0;
778}
779
780
781
782
783
784
785
786
787
788
789
790
791static int validate_ref(struct ubifs_info *c, const struct ubifs_ref_node *ref)
792{
793 struct ubifs_bud *bud;
794 int lnum = le32_to_cpu(ref->lnum);
795 unsigned int offs = le32_to_cpu(ref->offs);
796 unsigned int jhead = le32_to_cpu(ref->jhead);
797
798
799
800
801
802
803 if (jhead >= c->jhead_cnt || lnum >= c->leb_cnt ||
804 lnum < c->main_first || offs > c->leb_size ||
805 offs & (c->min_io_size - 1))
806 return -EINVAL;
807
808
809 bud = ubifs_search_bud(c, lnum);
810 if (bud) {
811 if (bud->jhead == jhead && bud->start <= offs)
812 return 1;
813 ubifs_err("bud at LEB %d:%d was already referred", lnum, offs);
814 return -EINVAL;
815 }
816
817 return 0;
818}
819
820
821
822
823
824
825
826
827
828
829
830
831static int replay_log_leb(struct ubifs_info *c, int lnum, int offs, void *sbuf)
832{
833 int err;
834 struct ubifs_scan_leb *sleb;
835 struct ubifs_scan_node *snod;
836 const struct ubifs_cs_node *node;
837
838 dbg_mnt("replay log LEB %d:%d", lnum, offs);
839 sleb = ubifs_scan(c, lnum, offs, sbuf, c->need_recovery);
840 if (IS_ERR(sleb)) {
841 if (PTR_ERR(sleb) != -EUCLEAN || !c->need_recovery)
842 return PTR_ERR(sleb);
843 sleb = ubifs_recover_log_leb(c, lnum, offs, sbuf);
844 if (IS_ERR(sleb))
845 return PTR_ERR(sleb);
846 }
847
848 if (sleb->nodes_cnt == 0) {
849 err = 1;
850 goto out;
851 }
852
853 node = sleb->buf;
854
855 snod = list_entry(sleb->nodes.next, struct ubifs_scan_node, list);
856 if (c->cs_sqnum == 0) {
857
858
859
860
861
862
863
864 if (snod->type != UBIFS_CS_NODE) {
865 dbg_err("first log node at LEB %d:%d is not CS node",
866 lnum, offs);
867 goto out_dump;
868 }
869 if (le64_to_cpu(node->cmt_no) != c->cmt_no) {
870 dbg_err("first CS node at LEB %d:%d has wrong "
871 "commit number %llu expected %llu",
872 lnum, offs,
873 (unsigned long long)le64_to_cpu(node->cmt_no),
874 c->cmt_no);
875 goto out_dump;
876 }
877
878 c->cs_sqnum = le64_to_cpu(node->ch.sqnum);
879 dbg_mnt("commit start sqnum %llu", c->cs_sqnum);
880 }
881
882 if (snod->sqnum < c->cs_sqnum) {
883
884
885
886
887
888
889
890 err = 1;
891 goto out;
892 }
893
894
895 if (snod->offs != 0) {
896 dbg_err("first node is not at zero offset");
897 goto out_dump;
898 }
899
900 list_for_each_entry(snod, &sleb->nodes, list) {
901
902 cond_resched();
903
904 if (snod->sqnum >= SQNUM_WATERMARK) {
905 ubifs_err("file system's life ended");
906 goto out_dump;
907 }
908
909 if (snod->sqnum < c->cs_sqnum) {
910 dbg_err("bad sqnum %llu, commit sqnum %llu",
911 snod->sqnum, c->cs_sqnum);
912 goto out_dump;
913 }
914
915 if (snod->sqnum > c->max_sqnum)
916 c->max_sqnum = snod->sqnum;
917
918 switch (snod->type) {
919 case UBIFS_REF_NODE: {
920 const struct ubifs_ref_node *ref = snod->node;
921
922 err = validate_ref(c, ref);
923 if (err == 1)
924 break;
925 if (err)
926 goto out_dump;
927
928 err = add_replay_bud(c, le32_to_cpu(ref->lnum),
929 le32_to_cpu(ref->offs),
930 le32_to_cpu(ref->jhead),
931 snod->sqnum);
932 if (err)
933 goto out;
934
935 break;
936 }
937 case UBIFS_CS_NODE:
938
939 if (snod->offs != 0) {
940 ubifs_err("unexpected node in log");
941 goto out_dump;
942 }
943 break;
944 default:
945 ubifs_err("unexpected node in log");
946 goto out_dump;
947 }
948 }
949
950 if (sleb->endpt || c->lhead_offs >= c->leb_size) {
951 c->lhead_lnum = lnum;
952 c->lhead_offs = sleb->endpt;
953 }
954
955 err = !sleb->endpt;
956out:
957 ubifs_scan_destroy(sleb);
958 return err;
959
960out_dump:
961 ubifs_err("log error detected while replaying the log at LEB %d:%d",
962 lnum, offs + snod->offs);
963 dbg_dump_node(c, snod->node);
964 ubifs_scan_destroy(sleb);
965 return -EINVAL;
966}
967
968
969
970
971
972
973
974
975static int take_ihead(struct ubifs_info *c)
976{
977 const struct ubifs_lprops *lp;
978 int err, free;
979
980 ubifs_get_lprops(c);
981
982 lp = ubifs_lpt_lookup_dirty(c, c->ihead_lnum);
983 if (IS_ERR(lp)) {
984 err = PTR_ERR(lp);
985 goto out;
986 }
987
988 free = lp->free;
989
990 lp = ubifs_change_lp(c, lp, LPROPS_NC, LPROPS_NC,
991 lp->flags | LPROPS_TAKEN, 0);
992 if (IS_ERR(lp)) {
993 err = PTR_ERR(lp);
994 goto out;
995 }
996
997 err = free;
998out:
999 ubifs_release_lprops(c);
1000 return err;
1001}
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011int ubifs_replay_journal(struct ubifs_info *c)
1012{
1013 int err, i, lnum, offs, free;
1014 void *sbuf = NULL;
1015
1016 BUILD_BUG_ON(UBIFS_TRUN_KEY > 5);
1017
1018
1019 free = take_ihead(c);
1020 if (free < 0)
1021 return free;
1022
1023 if (c->ihead_offs != c->leb_size - free) {
1024 ubifs_err("bad index head LEB %d:%d", c->ihead_lnum,
1025 c->ihead_offs);
1026 return -EINVAL;
1027 }
1028
1029 sbuf = vmalloc(c->leb_size);
1030 if (!sbuf)
1031 return -ENOMEM;
1032
1033 dbg_mnt("start replaying the journal");
1034
1035 c->replaying = 1;
1036
1037 lnum = c->ltail_lnum = c->lhead_lnum;
1038 offs = c->lhead_offs;
1039
1040 for (i = 0; i < c->log_lebs; i++, lnum++) {
1041 if (lnum >= UBIFS_LOG_LNUM + c->log_lebs) {
1042
1043
1044
1045
1046 lnum = UBIFS_LOG_LNUM;
1047 offs = 0;
1048 }
1049 err = replay_log_leb(c, lnum, offs, sbuf);
1050 if (err == 1)
1051
1052 break;
1053 if (err)
1054 goto out;
1055 offs = 0;
1056 }
1057
1058 err = replay_buds(c);
1059 if (err)
1060 goto out;
1061
1062 err = apply_replay_tree(c);
1063 if (err)
1064 goto out;
1065
1066
1067
1068
1069
1070
1071
1072 c->budg_uncommitted_idx = atomic_long_read(&c->dirty_zn_cnt);
1073 c->budg_uncommitted_idx *= c->max_idx_node_sz;
1074
1075 ubifs_assert(c->bud_bytes <= c->max_bud_bytes || c->need_recovery);
1076 dbg_mnt("finished, log head LEB %d:%d, max_sqnum %llu, "
1077 "highest_inum %lu", c->lhead_lnum, c->lhead_offs, c->max_sqnum,
1078 (unsigned long)c->highest_inum);
1079out:
1080 destroy_replay_tree(c);
1081 destroy_bud_list(c);
1082 vfree(sbuf);
1083 c->replaying = 0;
1084 return err;
1085}
1086