/
debug.c
2933 lines (2632 loc) · 78.8 KB
/
debug.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* This file is part of UBIFS.
*
* Copyright (C) 2006-2008 Nokia Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors: Artem Bityutskiy (Битюцкий Артём)
* Adrian Hunter
*/
/*
* This file implements most of the debugging stuff which is compiled in only
* when it is enabled. But some debugging check functions are implemented in
* corresponding subsystem, just because they are closely related and utilize
* various local functions of those subsystems.
*/
#define UBIFS_DBG_PRESERVE_UBI
#include "ubifs.h"
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/debugfs.h>
#include <linux/math64.h>
#ifdef CONFIG_UBIFS_FS_DEBUG
DEFINE_SPINLOCK(dbg_lock);
static char dbg_key_buf0[128];
static char dbg_key_buf1[128];
unsigned int ubifs_chk_flags;
unsigned int ubifs_tst_flags;
module_param_named(debug_chks, ubifs_chk_flags, uint, S_IRUGO | S_IWUSR);
module_param_named(debug_tsts, ubifs_tst_flags, uint, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug_chks, "Debug check flags");
MODULE_PARM_DESC(debug_tsts, "Debug special test flags");
static const char *get_key_fmt(int fmt)
{
switch (fmt) {
case UBIFS_SIMPLE_KEY_FMT:
return "simple";
default:
return "unknown/invalid format";
}
}
static const char *get_key_hash(int hash)
{
switch (hash) {
case UBIFS_KEY_HASH_R5:
return "R5";
case UBIFS_KEY_HASH_TEST:
return "test";
default:
return "unknown/invalid name hash";
}
}
static const char *get_key_type(int type)
{
switch (type) {
case UBIFS_INO_KEY:
return "inode";
case UBIFS_DENT_KEY:
return "direntry";
case UBIFS_XENT_KEY:
return "xentry";
case UBIFS_DATA_KEY:
return "data";
case UBIFS_TRUN_KEY:
return "truncate";
default:
return "unknown/invalid key";
}
}
static void sprintf_key(const struct ubifs_info *c, const union ubifs_key *key,
char *buffer)
{
char *p = buffer;
int type = key_type(c, key);
if (c->key_fmt == UBIFS_SIMPLE_KEY_FMT) {
switch (type) {
case UBIFS_INO_KEY:
sprintf(p, "(%lu, %s)", (unsigned long)key_inum(c, key),
get_key_type(type));
break;
case UBIFS_DENT_KEY:
case UBIFS_XENT_KEY:
sprintf(p, "(%lu, %s, %#08x)",
(unsigned long)key_inum(c, key),
get_key_type(type), key_hash(c, key));
break;
case UBIFS_DATA_KEY:
sprintf(p, "(%lu, %s, %u)",
(unsigned long)key_inum(c, key),
get_key_type(type), key_block(c, key));
break;
case UBIFS_TRUN_KEY:
sprintf(p, "(%lu, %s)",
(unsigned long)key_inum(c, key),
get_key_type(type));
break;
default:
sprintf(p, "(bad key type: %#08x, %#08x)",
key->u32[0], key->u32[1]);
}
} else
sprintf(p, "bad key format %d", c->key_fmt);
}
const char *dbg_key_str0(const struct ubifs_info *c, const union ubifs_key *key)
{
/* dbg_lock must be held */
sprintf_key(c, key, dbg_key_buf0);
return dbg_key_buf0;
}
const char *dbg_key_str1(const struct ubifs_info *c, const union ubifs_key *key)
{
/* dbg_lock must be held */
sprintf_key(c, key, dbg_key_buf1);
return dbg_key_buf1;
}
const char *dbg_ntype(int type)
{
switch (type) {
case UBIFS_PAD_NODE:
return "padding node";
case UBIFS_SB_NODE:
return "superblock node";
case UBIFS_MST_NODE:
return "master node";
case UBIFS_REF_NODE:
return "reference node";
case UBIFS_INO_NODE:
return "inode node";
case UBIFS_DENT_NODE:
return "direntry node";
case UBIFS_XENT_NODE:
return "xentry node";
case UBIFS_DATA_NODE:
return "data node";
case UBIFS_TRUN_NODE:
return "truncate node";
case UBIFS_IDX_NODE:
return "indexing node";
case UBIFS_CS_NODE:
return "commit start node";
case UBIFS_ORPH_NODE:
return "orphan node";
default:
return "unknown node";
}
}
static const char *dbg_gtype(int type)
{
switch (type) {
case UBIFS_NO_NODE_GROUP:
return "no node group";
case UBIFS_IN_NODE_GROUP:
return "in node group";
case UBIFS_LAST_OF_NODE_GROUP:
return "last of node group";
default:
return "unknown";
}
}
const char *dbg_cstate(int cmt_state)
{
switch (cmt_state) {
case COMMIT_RESTING:
return "commit resting";
case COMMIT_BACKGROUND:
return "background commit requested";
case COMMIT_REQUIRED:
return "commit required";
case COMMIT_RUNNING_BACKGROUND:
return "BACKGROUND commit running";
case COMMIT_RUNNING_REQUIRED:
return "commit running and required";
case COMMIT_BROKEN:
return "broken commit";
default:
return "unknown commit state";
}
}
const char *dbg_jhead(int jhead)
{
switch (jhead) {
case GCHD:
return "0 (GC)";
case BASEHD:
return "1 (base)";
case DATAHD:
return "2 (data)";
default:
return "unknown journal head";
}
}
static void dump_ch(const struct ubifs_ch *ch)
{
printk(KERN_DEBUG "\tmagic %#x\n", le32_to_cpu(ch->magic));
printk(KERN_DEBUG "\tcrc %#x\n", le32_to_cpu(ch->crc));
printk(KERN_DEBUG "\tnode_type %d (%s)\n", ch->node_type,
dbg_ntype(ch->node_type));
printk(KERN_DEBUG "\tgroup_type %d (%s)\n", ch->group_type,
dbg_gtype(ch->group_type));
printk(KERN_DEBUG "\tsqnum %llu\n",
(unsigned long long)le64_to_cpu(ch->sqnum));
printk(KERN_DEBUG "\tlen %u\n", le32_to_cpu(ch->len));
}
void dbg_dump_inode(const struct ubifs_info *c, const struct inode *inode)
{
const struct ubifs_inode *ui = ubifs_inode(inode);
printk(KERN_DEBUG "Dump in-memory inode:");
printk(KERN_DEBUG "\tinode %lu\n", inode->i_ino);
printk(KERN_DEBUG "\tsize %llu\n",
(unsigned long long)i_size_read(inode));
printk(KERN_DEBUG "\tnlink %u\n", inode->i_nlink);
printk(KERN_DEBUG "\tuid %u\n", (unsigned int)inode->i_uid);
printk(KERN_DEBUG "\tgid %u\n", (unsigned int)inode->i_gid);
printk(KERN_DEBUG "\tatime %u.%u\n",
(unsigned int)inode->i_atime.tv_sec,
(unsigned int)inode->i_atime.tv_nsec);
printk(KERN_DEBUG "\tmtime %u.%u\n",
(unsigned int)inode->i_mtime.tv_sec,
(unsigned int)inode->i_mtime.tv_nsec);
printk(KERN_DEBUG "\tctime %u.%u\n",
(unsigned int)inode->i_ctime.tv_sec,
(unsigned int)inode->i_ctime.tv_nsec);
printk(KERN_DEBUG "\tcreat_sqnum %llu\n", ui->creat_sqnum);
printk(KERN_DEBUG "\txattr_size %u\n", ui->xattr_size);
printk(KERN_DEBUG "\txattr_cnt %u\n", ui->xattr_cnt);
printk(KERN_DEBUG "\txattr_names %u\n", ui->xattr_names);
printk(KERN_DEBUG "\tdirty %u\n", ui->dirty);
printk(KERN_DEBUG "\txattr %u\n", ui->xattr);
printk(KERN_DEBUG "\tbulk_read %u\n", ui->xattr);
printk(KERN_DEBUG "\tsynced_i_size %llu\n",
(unsigned long long)ui->synced_i_size);
printk(KERN_DEBUG "\tui_size %llu\n",
(unsigned long long)ui->ui_size);
printk(KERN_DEBUG "\tflags %d\n", ui->flags);
printk(KERN_DEBUG "\tcompr_type %d\n", ui->compr_type);
printk(KERN_DEBUG "\tlast_page_read %lu\n", ui->last_page_read);
printk(KERN_DEBUG "\tread_in_a_row %lu\n", ui->read_in_a_row);
printk(KERN_DEBUG "\tdata_len %d\n", ui->data_len);
}
void dbg_dump_node(const struct ubifs_info *c, const void *node)
{
int i, n;
union ubifs_key key;
const struct ubifs_ch *ch = node;
if (dbg_failure_mode)
return;
/* If the magic is incorrect, just hexdump the first bytes */
if (le32_to_cpu(ch->magic) != UBIFS_NODE_MAGIC) {
printk(KERN_DEBUG "Not a node, first %zu bytes:", UBIFS_CH_SZ);
print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
(void *)node, UBIFS_CH_SZ, 1);
return;
}
spin_lock(&dbg_lock);
dump_ch(node);
switch (ch->node_type) {
case UBIFS_PAD_NODE:
{
const struct ubifs_pad_node *pad = node;
printk(KERN_DEBUG "\tpad_len %u\n",
le32_to_cpu(pad->pad_len));
break;
}
case UBIFS_SB_NODE:
{
const struct ubifs_sb_node *sup = node;
unsigned int sup_flags = le32_to_cpu(sup->flags);
printk(KERN_DEBUG "\tkey_hash %d (%s)\n",
(int)sup->key_hash, get_key_hash(sup->key_hash));
printk(KERN_DEBUG "\tkey_fmt %d (%s)\n",
(int)sup->key_fmt, get_key_fmt(sup->key_fmt));
printk(KERN_DEBUG "\tflags %#x\n", sup_flags);
printk(KERN_DEBUG "\t big_lpt %u\n",
!!(sup_flags & UBIFS_FLG_BIGLPT));
printk(KERN_DEBUG "\t space_fixup %u\n",
!!(sup_flags & UBIFS_FLG_SPACE_FIXUP));
printk(KERN_DEBUG "\tmin_io_size %u\n",
le32_to_cpu(sup->min_io_size));
printk(KERN_DEBUG "\tleb_size %u\n",
le32_to_cpu(sup->leb_size));
printk(KERN_DEBUG "\tleb_cnt %u\n",
le32_to_cpu(sup->leb_cnt));
printk(KERN_DEBUG "\tmax_leb_cnt %u\n",
le32_to_cpu(sup->max_leb_cnt));
printk(KERN_DEBUG "\tmax_bud_bytes %llu\n",
(unsigned long long)le64_to_cpu(sup->max_bud_bytes));
printk(KERN_DEBUG "\tlog_lebs %u\n",
le32_to_cpu(sup->log_lebs));
printk(KERN_DEBUG "\tlpt_lebs %u\n",
le32_to_cpu(sup->lpt_lebs));
printk(KERN_DEBUG "\torph_lebs %u\n",
le32_to_cpu(sup->orph_lebs));
printk(KERN_DEBUG "\tjhead_cnt %u\n",
le32_to_cpu(sup->jhead_cnt));
printk(KERN_DEBUG "\tfanout %u\n",
le32_to_cpu(sup->fanout));
printk(KERN_DEBUG "\tlsave_cnt %u\n",
le32_to_cpu(sup->lsave_cnt));
printk(KERN_DEBUG "\tdefault_compr %u\n",
(int)le16_to_cpu(sup->default_compr));
printk(KERN_DEBUG "\trp_size %llu\n",
(unsigned long long)le64_to_cpu(sup->rp_size));
printk(KERN_DEBUG "\trp_uid %u\n",
le32_to_cpu(sup->rp_uid));
printk(KERN_DEBUG "\trp_gid %u\n",
le32_to_cpu(sup->rp_gid));
printk(KERN_DEBUG "\tfmt_version %u\n",
le32_to_cpu(sup->fmt_version));
printk(KERN_DEBUG "\ttime_gran %u\n",
le32_to_cpu(sup->time_gran));
printk(KERN_DEBUG "\tUUID %pUB\n",
sup->uuid);
break;
}
case UBIFS_MST_NODE:
{
const struct ubifs_mst_node *mst = node;
printk(KERN_DEBUG "\thighest_inum %llu\n",
(unsigned long long)le64_to_cpu(mst->highest_inum));
printk(KERN_DEBUG "\tcommit number %llu\n",
(unsigned long long)le64_to_cpu(mst->cmt_no));
printk(KERN_DEBUG "\tflags %#x\n",
le32_to_cpu(mst->flags));
printk(KERN_DEBUG "\tlog_lnum %u\n",
le32_to_cpu(mst->log_lnum));
printk(KERN_DEBUG "\troot_lnum %u\n",
le32_to_cpu(mst->root_lnum));
printk(KERN_DEBUG "\troot_offs %u\n",
le32_to_cpu(mst->root_offs));
printk(KERN_DEBUG "\troot_len %u\n",
le32_to_cpu(mst->root_len));
printk(KERN_DEBUG "\tgc_lnum %u\n",
le32_to_cpu(mst->gc_lnum));
printk(KERN_DEBUG "\tihead_lnum %u\n",
le32_to_cpu(mst->ihead_lnum));
printk(KERN_DEBUG "\tihead_offs %u\n",
le32_to_cpu(mst->ihead_offs));
printk(KERN_DEBUG "\tindex_size %llu\n",
(unsigned long long)le64_to_cpu(mst->index_size));
printk(KERN_DEBUG "\tlpt_lnum %u\n",
le32_to_cpu(mst->lpt_lnum));
printk(KERN_DEBUG "\tlpt_offs %u\n",
le32_to_cpu(mst->lpt_offs));
printk(KERN_DEBUG "\tnhead_lnum %u\n",
le32_to_cpu(mst->nhead_lnum));
printk(KERN_DEBUG "\tnhead_offs %u\n",
le32_to_cpu(mst->nhead_offs));
printk(KERN_DEBUG "\tltab_lnum %u\n",
le32_to_cpu(mst->ltab_lnum));
printk(KERN_DEBUG "\tltab_offs %u\n",
le32_to_cpu(mst->ltab_offs));
printk(KERN_DEBUG "\tlsave_lnum %u\n",
le32_to_cpu(mst->lsave_lnum));
printk(KERN_DEBUG "\tlsave_offs %u\n",
le32_to_cpu(mst->lsave_offs));
printk(KERN_DEBUG "\tlscan_lnum %u\n",
le32_to_cpu(mst->lscan_lnum));
printk(KERN_DEBUG "\tleb_cnt %u\n",
le32_to_cpu(mst->leb_cnt));
printk(KERN_DEBUG "\tempty_lebs %u\n",
le32_to_cpu(mst->empty_lebs));
printk(KERN_DEBUG "\tidx_lebs %u\n",
le32_to_cpu(mst->idx_lebs));
printk(KERN_DEBUG "\ttotal_free %llu\n",
(unsigned long long)le64_to_cpu(mst->total_free));
printk(KERN_DEBUG "\ttotal_dirty %llu\n",
(unsigned long long)le64_to_cpu(mst->total_dirty));
printk(KERN_DEBUG "\ttotal_used %llu\n",
(unsigned long long)le64_to_cpu(mst->total_used));
printk(KERN_DEBUG "\ttotal_dead %llu\n",
(unsigned long long)le64_to_cpu(mst->total_dead));
printk(KERN_DEBUG "\ttotal_dark %llu\n",
(unsigned long long)le64_to_cpu(mst->total_dark));
break;
}
case UBIFS_REF_NODE:
{
const struct ubifs_ref_node *ref = node;
printk(KERN_DEBUG "\tlnum %u\n",
le32_to_cpu(ref->lnum));
printk(KERN_DEBUG "\toffs %u\n",
le32_to_cpu(ref->offs));
printk(KERN_DEBUG "\tjhead %u\n",
le32_to_cpu(ref->jhead));
break;
}
case UBIFS_INO_NODE:
{
const struct ubifs_ino_node *ino = node;
key_read(c, &ino->key, &key);
printk(KERN_DEBUG "\tkey %s\n", DBGKEY(&key));
printk(KERN_DEBUG "\tcreat_sqnum %llu\n",
(unsigned long long)le64_to_cpu(ino->creat_sqnum));
printk(KERN_DEBUG "\tsize %llu\n",
(unsigned long long)le64_to_cpu(ino->size));
printk(KERN_DEBUG "\tnlink %u\n",
le32_to_cpu(ino->nlink));
printk(KERN_DEBUG "\tatime %lld.%u\n",
(long long)le64_to_cpu(ino->atime_sec),
le32_to_cpu(ino->atime_nsec));
printk(KERN_DEBUG "\tmtime %lld.%u\n",
(long long)le64_to_cpu(ino->mtime_sec),
le32_to_cpu(ino->mtime_nsec));
printk(KERN_DEBUG "\tctime %lld.%u\n",
(long long)le64_to_cpu(ino->ctime_sec),
le32_to_cpu(ino->ctime_nsec));
printk(KERN_DEBUG "\tuid %u\n",
le32_to_cpu(ino->uid));
printk(KERN_DEBUG "\tgid %u\n",
le32_to_cpu(ino->gid));
printk(KERN_DEBUG "\tmode %u\n",
le32_to_cpu(ino->mode));
printk(KERN_DEBUG "\tflags %#x\n",
le32_to_cpu(ino->flags));
printk(KERN_DEBUG "\txattr_cnt %u\n",
le32_to_cpu(ino->xattr_cnt));
printk(KERN_DEBUG "\txattr_size %u\n",
le32_to_cpu(ino->xattr_size));
printk(KERN_DEBUG "\txattr_names %u\n",
le32_to_cpu(ino->xattr_names));
printk(KERN_DEBUG "\tcompr_type %#x\n",
(int)le16_to_cpu(ino->compr_type));
printk(KERN_DEBUG "\tdata len %u\n",
le32_to_cpu(ino->data_len));
break;
}
case UBIFS_DENT_NODE:
case UBIFS_XENT_NODE:
{
const struct ubifs_dent_node *dent = node;
int nlen = le16_to_cpu(dent->nlen);
key_read(c, &dent->key, &key);
printk(KERN_DEBUG "\tkey %s\n", DBGKEY(&key));
printk(KERN_DEBUG "\tinum %llu\n",
(unsigned long long)le64_to_cpu(dent->inum));
printk(KERN_DEBUG "\ttype %d\n", (int)dent->type);
printk(KERN_DEBUG "\tnlen %d\n", nlen);
printk(KERN_DEBUG "\tname ");
if (nlen > UBIFS_MAX_NLEN)
printk(KERN_DEBUG "(bad name length, not printing, "
"bad or corrupted node)");
else {
for (i = 0; i < nlen && dent->name[i]; i++)
printk(KERN_CONT "%c", dent->name[i]);
}
printk(KERN_CONT "\n");
break;
}
case UBIFS_DATA_NODE:
{
const struct ubifs_data_node *dn = node;
int dlen = le32_to_cpu(ch->len) - UBIFS_DATA_NODE_SZ;
key_read(c, &dn->key, &key);
printk(KERN_DEBUG "\tkey %s\n", DBGKEY(&key));
printk(KERN_DEBUG "\tsize %u\n",
le32_to_cpu(dn->size));
printk(KERN_DEBUG "\tcompr_typ %d\n",
(int)le16_to_cpu(dn->compr_type));
printk(KERN_DEBUG "\tdata size %d\n",
dlen);
printk(KERN_DEBUG "\tdata:\n");
print_hex_dump(KERN_DEBUG, "\t", DUMP_PREFIX_OFFSET, 32, 1,
(void *)&dn->data, dlen, 0);
break;
}
case UBIFS_TRUN_NODE:
{
const struct ubifs_trun_node *trun = node;
printk(KERN_DEBUG "\tinum %u\n",
le32_to_cpu(trun->inum));
printk(KERN_DEBUG "\told_size %llu\n",
(unsigned long long)le64_to_cpu(trun->old_size));
printk(KERN_DEBUG "\tnew_size %llu\n",
(unsigned long long)le64_to_cpu(trun->new_size));
break;
}
case UBIFS_IDX_NODE:
{
const struct ubifs_idx_node *idx = node;
n = le16_to_cpu(idx->child_cnt);
printk(KERN_DEBUG "\tchild_cnt %d\n", n);
printk(KERN_DEBUG "\tlevel %d\n",
(int)le16_to_cpu(idx->level));
printk(KERN_DEBUG "\tBranches:\n");
for (i = 0; i < n && i < c->fanout - 1; i++) {
const struct ubifs_branch *br;
br = ubifs_idx_branch(c, idx, i);
key_read(c, &br->key, &key);
printk(KERN_DEBUG "\t%d: LEB %d:%d len %d key %s\n",
i, le32_to_cpu(br->lnum), le32_to_cpu(br->offs),
le32_to_cpu(br->len), DBGKEY(&key));
}
break;
}
case UBIFS_CS_NODE:
break;
case UBIFS_ORPH_NODE:
{
const struct ubifs_orph_node *orph = node;
printk(KERN_DEBUG "\tcommit number %llu\n",
(unsigned long long)
le64_to_cpu(orph->cmt_no) & LLONG_MAX);
printk(KERN_DEBUG "\tlast node flag %llu\n",
(unsigned long long)(le64_to_cpu(orph->cmt_no)) >> 63);
n = (le32_to_cpu(ch->len) - UBIFS_ORPH_NODE_SZ) >> 3;
printk(KERN_DEBUG "\t%d orphan inode numbers:\n", n);
for (i = 0; i < n; i++)
printk(KERN_DEBUG "\t ino %llu\n",
(unsigned long long)le64_to_cpu(orph->inos[i]));
break;
}
default:
printk(KERN_DEBUG "node type %d was not recognized\n",
(int)ch->node_type);
}
spin_unlock(&dbg_lock);
}
void dbg_dump_budget_req(const struct ubifs_budget_req *req)
{
spin_lock(&dbg_lock);
printk(KERN_DEBUG "Budgeting request: new_ino %d, dirtied_ino %d\n",
req->new_ino, req->dirtied_ino);
printk(KERN_DEBUG "\tnew_ino_d %d, dirtied_ino_d %d\n",
req->new_ino_d, req->dirtied_ino_d);
printk(KERN_DEBUG "\tnew_page %d, dirtied_page %d\n",
req->new_page, req->dirtied_page);
printk(KERN_DEBUG "\tnew_dent %d, mod_dent %d\n",
req->new_dent, req->mod_dent);
printk(KERN_DEBUG "\tidx_growth %d\n", req->idx_growth);
printk(KERN_DEBUG "\tdata_growth %d dd_growth %d\n",
req->data_growth, req->dd_growth);
spin_unlock(&dbg_lock);
}
void dbg_dump_lstats(const struct ubifs_lp_stats *lst)
{
spin_lock(&dbg_lock);
printk(KERN_DEBUG "(pid %d) Lprops statistics: empty_lebs %d, "
"idx_lebs %d\n", current->pid, lst->empty_lebs, lst->idx_lebs);
printk(KERN_DEBUG "\ttaken_empty_lebs %d, total_free %lld, "
"total_dirty %lld\n", lst->taken_empty_lebs, lst->total_free,
lst->total_dirty);
printk(KERN_DEBUG "\ttotal_used %lld, total_dark %lld, "
"total_dead %lld\n", lst->total_used, lst->total_dark,
lst->total_dead);
spin_unlock(&dbg_lock);
}
void dbg_dump_budg(struct ubifs_info *c, const struct ubifs_budg_info *bi)
{
int i;
struct rb_node *rb;
struct ubifs_bud *bud;
struct ubifs_gced_idx_leb *idx_gc;
long long available, outstanding, free;
spin_lock(&c->space_lock);
spin_lock(&dbg_lock);
printk(KERN_DEBUG "(pid %d) Budgeting info: data budget sum %lld, "
"total budget sum %lld\n", current->pid,
bi->data_growth + bi->dd_growth,
bi->data_growth + bi->dd_growth + bi->idx_growth);
printk(KERN_DEBUG "\tbudg_data_growth %lld, budg_dd_growth %lld, "
"budg_idx_growth %lld\n", bi->data_growth, bi->dd_growth,
bi->idx_growth);
printk(KERN_DEBUG "\tmin_idx_lebs %d, old_idx_sz %llu, "
"uncommitted_idx %lld\n", bi->min_idx_lebs, bi->old_idx_sz,
bi->uncommitted_idx);
printk(KERN_DEBUG "\tpage_budget %d, inode_budget %d, dent_budget %d\n",
bi->page_budget, bi->inode_budget, bi->dent_budget);
printk(KERN_DEBUG "\tnospace %u, nospace_rp %u\n",
bi->nospace, bi->nospace_rp);
printk(KERN_DEBUG "\tdark_wm %d, dead_wm %d, max_idx_node_sz %d\n",
c->dark_wm, c->dead_wm, c->max_idx_node_sz);
if (bi != &c->bi)
/*
* If we are dumping saved budgeting data, do not print
* additional information which is about the current state, not
* the old one which corresponded to the saved budgeting data.
*/
goto out_unlock;
printk(KERN_DEBUG "\tfreeable_cnt %d, calc_idx_sz %lld, idx_gc_cnt %d\n",
c->freeable_cnt, c->calc_idx_sz, c->idx_gc_cnt);
printk(KERN_DEBUG "\tdirty_pg_cnt %ld, dirty_zn_cnt %ld, "
"clean_zn_cnt %ld\n", atomic_long_read(&c->dirty_pg_cnt),
atomic_long_read(&c->dirty_zn_cnt),
atomic_long_read(&c->clean_zn_cnt));
printk(KERN_DEBUG "\tgc_lnum %d, ihead_lnum %d\n",
c->gc_lnum, c->ihead_lnum);
/* If we are in R/O mode, journal heads do not exist */
if (c->jheads)
for (i = 0; i < c->jhead_cnt; i++)
printk(KERN_DEBUG "\tjhead %s\t LEB %d\n",
dbg_jhead(c->jheads[i].wbuf.jhead),
c->jheads[i].wbuf.lnum);
for (rb = rb_first(&c->buds); rb; rb = rb_next(rb)) {
bud = rb_entry(rb, struct ubifs_bud, rb);
printk(KERN_DEBUG "\tbud LEB %d\n", bud->lnum);
}
list_for_each_entry(bud, &c->old_buds, list)
printk(KERN_DEBUG "\told bud LEB %d\n", bud->lnum);
list_for_each_entry(idx_gc, &c->idx_gc, list)
printk(KERN_DEBUG "\tGC'ed idx LEB %d unmap %d\n",
idx_gc->lnum, idx_gc->unmap);
printk(KERN_DEBUG "\tcommit state %d\n", c->cmt_state);
/* Print budgeting predictions */
available = ubifs_calc_available(c, c->bi.min_idx_lebs);
outstanding = c->bi.data_growth + c->bi.dd_growth;
free = ubifs_get_free_space_nolock(c);
printk(KERN_DEBUG "Budgeting predictions:\n");
printk(KERN_DEBUG "\tavailable: %lld, outstanding %lld, free %lld\n",
available, outstanding, free);
out_unlock:
spin_unlock(&dbg_lock);
spin_unlock(&c->space_lock);
}
void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp)
{
int i, spc, dark = 0, dead = 0;
struct rb_node *rb;
struct ubifs_bud *bud;
spc = lp->free + lp->dirty;
if (spc < c->dead_wm)
dead = spc;
else
dark = ubifs_calc_dark(c, spc);
if (lp->flags & LPROPS_INDEX)
printk(KERN_DEBUG "LEB %-7d free %-8d dirty %-8d used %-8d "
"free + dirty %-8d flags %#x (", lp->lnum, lp->free,
lp->dirty, c->leb_size - spc, spc, lp->flags);
else
printk(KERN_DEBUG "LEB %-7d free %-8d dirty %-8d used %-8d "
"free + dirty %-8d dark %-4d dead %-4d nodes fit %-3d "
"flags %#-4x (", lp->lnum, lp->free, lp->dirty,
c->leb_size - spc, spc, dark, dead,
(int)(spc / UBIFS_MAX_NODE_SZ), lp->flags);
if (lp->flags & LPROPS_TAKEN) {
if (lp->flags & LPROPS_INDEX)
printk(KERN_CONT "index, taken");
else
printk(KERN_CONT "taken");
} else {
const char *s;
if (lp->flags & LPROPS_INDEX) {
switch (lp->flags & LPROPS_CAT_MASK) {
case LPROPS_DIRTY_IDX:
s = "dirty index";
break;
case LPROPS_FRDI_IDX:
s = "freeable index";
break;
default:
s = "index";
}
} else {
switch (lp->flags & LPROPS_CAT_MASK) {
case LPROPS_UNCAT:
s = "not categorized";
break;
case LPROPS_DIRTY:
s = "dirty";
break;
case LPROPS_FREE:
s = "free";
break;
case LPROPS_EMPTY:
s = "empty";
break;
case LPROPS_FREEABLE:
s = "freeable";
break;
default:
s = NULL;
break;
}
}
printk(KERN_CONT "%s", s);
}
for (rb = rb_first((struct rb_root *)&c->buds); rb; rb = rb_next(rb)) {
bud = rb_entry(rb, struct ubifs_bud, rb);
if (bud->lnum == lp->lnum) {
int head = 0;
for (i = 0; i < c->jhead_cnt; i++) {
/*
* Note, if we are in R/O mode or in the middle
* of mounting/re-mounting, the write-buffers do
* not exist.
*/
if (c->jheads &&
lp->lnum == c->jheads[i].wbuf.lnum) {
printk(KERN_CONT ", jhead %s",
dbg_jhead(i));
head = 1;
}
}
if (!head)
printk(KERN_CONT ", bud of jhead %s",
dbg_jhead(bud->jhead));
}
}
if (lp->lnum == c->gc_lnum)
printk(KERN_CONT ", GC LEB");
printk(KERN_CONT ")\n");
}
void dbg_dump_lprops(struct ubifs_info *c)
{
int lnum, err;
struct ubifs_lprops lp;
struct ubifs_lp_stats lst;
printk(KERN_DEBUG "(pid %d) start dumping LEB properties\n",
current->pid);
ubifs_get_lp_stats(c, &lst);
dbg_dump_lstats(&lst);
for (lnum = c->main_first; lnum < c->leb_cnt; lnum++) {
err = ubifs_read_one_lp(c, lnum, &lp);
if (err)
ubifs_err("cannot read lprops for LEB %d", lnum);
dbg_dump_lprop(c, &lp);
}
printk(KERN_DEBUG "(pid %d) finish dumping LEB properties\n",
current->pid);
}
void dbg_dump_lpt_info(struct ubifs_info *c)
{
int i;
spin_lock(&dbg_lock);
printk(KERN_DEBUG "(pid %d) dumping LPT information\n", current->pid);
printk(KERN_DEBUG "\tlpt_sz: %lld\n", c->lpt_sz);
printk(KERN_DEBUG "\tpnode_sz: %d\n", c->pnode_sz);
printk(KERN_DEBUG "\tnnode_sz: %d\n", c->nnode_sz);
printk(KERN_DEBUG "\tltab_sz: %d\n", c->ltab_sz);
printk(KERN_DEBUG "\tlsave_sz: %d\n", c->lsave_sz);
printk(KERN_DEBUG "\tbig_lpt: %d\n", c->big_lpt);
printk(KERN_DEBUG "\tlpt_hght: %d\n", c->lpt_hght);
printk(KERN_DEBUG "\tpnode_cnt: %d\n", c->pnode_cnt);
printk(KERN_DEBUG "\tnnode_cnt: %d\n", c->nnode_cnt);
printk(KERN_DEBUG "\tdirty_pn_cnt: %d\n", c->dirty_pn_cnt);
printk(KERN_DEBUG "\tdirty_nn_cnt: %d\n", c->dirty_nn_cnt);
printk(KERN_DEBUG "\tlsave_cnt: %d\n", c->lsave_cnt);
printk(KERN_DEBUG "\tspace_bits: %d\n", c->space_bits);
printk(KERN_DEBUG "\tlpt_lnum_bits: %d\n", c->lpt_lnum_bits);
printk(KERN_DEBUG "\tlpt_offs_bits: %d\n", c->lpt_offs_bits);
printk(KERN_DEBUG "\tlpt_spc_bits: %d\n", c->lpt_spc_bits);
printk(KERN_DEBUG "\tpcnt_bits: %d\n", c->pcnt_bits);
printk(KERN_DEBUG "\tlnum_bits: %d\n", c->lnum_bits);
printk(KERN_DEBUG "\tLPT root is at %d:%d\n", c->lpt_lnum, c->lpt_offs);
printk(KERN_DEBUG "\tLPT head is at %d:%d\n",
c->nhead_lnum, c->nhead_offs);
printk(KERN_DEBUG "\tLPT ltab is at %d:%d\n",
c->ltab_lnum, c->ltab_offs);
if (c->big_lpt)
printk(KERN_DEBUG "\tLPT lsave is at %d:%d\n",
c->lsave_lnum, c->lsave_offs);
for (i = 0; i < c->lpt_lebs; i++)
printk(KERN_DEBUG "\tLPT LEB %d free %d dirty %d tgc %d "
"cmt %d\n", i + c->lpt_first, c->ltab[i].free,
c->ltab[i].dirty, c->ltab[i].tgc, c->ltab[i].cmt);
spin_unlock(&dbg_lock);
}
void dbg_dump_leb(const struct ubifs_info *c, int lnum)
{
struct ubifs_scan_leb *sleb;
struct ubifs_scan_node *snod;
void *buf;
if (dbg_failure_mode)
return;
printk(KERN_DEBUG "(pid %d) start dumping LEB %d\n",
current->pid, lnum);
buf = __vmalloc(c->leb_size, GFP_NOFS, PAGE_KERNEL);
if (!buf) {
ubifs_err("cannot allocate memory for dumping LEB %d", lnum);
return;
}
sleb = ubifs_scan(c, lnum, 0, buf, 0);
if (IS_ERR(sleb)) {
ubifs_err("scan error %d", (int)PTR_ERR(sleb));
goto out;
}
printk(KERN_DEBUG "LEB %d has %d nodes ending at %d\n", lnum,
sleb->nodes_cnt, sleb->endpt);
list_for_each_entry(snod, &sleb->nodes, list) {
cond_resched();
printk(KERN_DEBUG "Dumping node at LEB %d:%d len %d\n", lnum,
snod->offs, snod->len);
dbg_dump_node(c, snod->node);
}
printk(KERN_DEBUG "(pid %d) finish dumping LEB %d\n",
current->pid, lnum);
ubifs_scan_destroy(sleb);
out:
vfree(buf);
return;
}
void dbg_dump_znode(const struct ubifs_info *c,
const struct ubifs_znode *znode)
{
int n;
const struct ubifs_zbranch *zbr;
spin_lock(&dbg_lock);
if (znode->parent)
zbr = &znode->parent->zbranch[znode->iip];
else
zbr = &c->zroot;
printk(KERN_DEBUG "znode %p, LEB %d:%d len %d parent %p iip %d level %d"
" child_cnt %d flags %lx\n", znode, zbr->lnum, zbr->offs,
zbr->len, znode->parent, znode->iip, znode->level,
znode->child_cnt, znode->flags);
if (znode->child_cnt <= 0 || znode->child_cnt > c->fanout) {
spin_unlock(&dbg_lock);
return;
}
printk(KERN_DEBUG "zbranches:\n");
for (n = 0; n < znode->child_cnt; n++) {
zbr = &znode->zbranch[n];
if (znode->level > 0)
printk(KERN_DEBUG "\t%d: znode %p LEB %d:%d len %d key "
"%s\n", n, zbr->znode, zbr->lnum,
zbr->offs, zbr->len,
DBGKEY(&zbr->key));
else
printk(KERN_DEBUG "\t%d: LNC %p LEB %d:%d len %d key "
"%s\n", n, zbr->znode, zbr->lnum,
zbr->offs, zbr->len,
DBGKEY(&zbr->key));
}
spin_unlock(&dbg_lock);
}
void dbg_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat)
{
int i;
printk(KERN_DEBUG "(pid %d) start dumping heap cat %d (%d elements)\n",
current->pid, cat, heap->cnt);
for (i = 0; i < heap->cnt; i++) {
struct ubifs_lprops *lprops = heap->arr[i];
printk(KERN_DEBUG "\t%d. LEB %d hpos %d free %d dirty %d "
"flags %d\n", i, lprops->lnum, lprops->hpos,
lprops->free, lprops->dirty, lprops->flags);
}
printk(KERN_DEBUG "(pid %d) finish dumping heap\n", current->pid);
}
void dbg_dump_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
struct ubifs_nnode *parent, int iip)
{
int i;
printk(KERN_DEBUG "(pid %d) dumping pnode:\n", current->pid);
printk(KERN_DEBUG "\taddress %zx parent %zx cnext %zx\n",
(size_t)pnode, (size_t)parent, (size_t)pnode->cnext);
printk(KERN_DEBUG "\tflags %lu iip %d level %d num %d\n",
pnode->flags, iip, pnode->level, pnode->num);
for (i = 0; i < UBIFS_LPT_FANOUT; i++) {
struct ubifs_lprops *lp = &pnode->lprops[i];
printk(KERN_DEBUG "\t%d: free %d dirty %d flags %d lnum %d\n",
i, lp->free, lp->dirty, lp->flags, lp->lnum);
}
}
void dbg_dump_tnc(struct ubifs_info *c)
{
struct ubifs_znode *znode;
int level;
printk(KERN_DEBUG "\n");
printk(KERN_DEBUG "(pid %d) start dumping TNC tree\n", current->pid);
znode = ubifs_tnc_levelorder_next(c->zroot.znode, NULL);
level = znode->level;
printk(KERN_DEBUG "== Level %d ==\n", level);
while (znode) {
if (level != znode->level) {
level = znode->level;
printk(KERN_DEBUG "== Level %d ==\n", level);
}
dbg_dump_znode(c, znode);
znode = ubifs_tnc_levelorder_next(c->zroot.znode, znode);
}
printk(KERN_DEBUG "(pid %d) finish dumping TNC tree\n", current->pid);
}
static int dump_znode(struct ubifs_info *c, struct ubifs_znode *znode,
void *priv)
{
dbg_dump_znode(c, znode);
return 0;
}
/**
* dbg_dump_index - dump the on-flash index.
* @c: UBIFS file-system description object
*
* This function dumps whole UBIFS indexing B-tree, unlike 'dbg_dump_tnc()'
* which dumps only in-memory znodes and does not read znodes which from flash.
*/
void dbg_dump_index(struct ubifs_info *c)
{
dbg_walk_index(c, NULL, dump_znode, NULL);
}
/**
* dbg_save_space_info - save information about flash space.
* @c: UBIFS file-system description object
*
* This function saves information about UBIFS free space, dirty space, etc, in
* order to check it later.
*/
void dbg_save_space_info(struct ubifs_info *c)
{
struct ubifs_debug_info *d = c->dbg;
int freeable_cnt;
spin_lock(&c->space_lock);
memcpy(&d->saved_lst, &c->lst, sizeof(struct ubifs_lp_stats));