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13#include <linux/kernel.h>
14#include <linux/types.h>
15#include <linux/pagemap.h>
16#include <linux/crc32.h>
17#include <linux/jffs2.h>
18#include <linux/mtd/mtd.h>
19#include <linux/slab.h>
20#include "nodelist.h"
21#include "debug.h"
22
23#ifdef JFFS2_DBG_SANITY_CHECKS
24
25void
26__jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c,
27 struct jffs2_eraseblock *jeb)
28{
29 if (unlikely(jeb && jeb->used_size + jeb->dirty_size +
30 jeb->free_size + jeb->wasted_size +
31 jeb->unchecked_size != c->sector_size)) {
32 JFFS2_ERROR("eeep, space accounting for block at 0x%08x is screwed.\n", jeb->offset);
33 JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + wasted %#08x + unchecked %#08x != total %#08x.\n",
34 jeb->free_size, jeb->dirty_size, jeb->used_size,
35 jeb->wasted_size, jeb->unchecked_size, c->sector_size);
36 BUG();
37 }
38
39 if (unlikely(c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size
40 + c->wasted_size + c->unchecked_size != c->flash_size)) {
41 JFFS2_ERROR("eeep, space accounting superblock info is screwed.\n");
42 JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + erasing %#08x + bad %#08x + wasted %#08x + unchecked %#08x != total %#08x.\n",
43 c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
44 c->wasted_size, c->unchecked_size, c->flash_size);
45 BUG();
46 }
47}
48
49void
50__jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
51 struct jffs2_eraseblock *jeb)
52{
53 spin_lock(&c->erase_completion_lock);
54 jffs2_dbg_acct_sanity_check_nolock(c, jeb);
55 spin_unlock(&c->erase_completion_lock);
56}
57
58#endif
59
60#ifdef JFFS2_DBG_PARANOIA_CHECKS
61
62
63
64void
65__jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f)
66{
67 mutex_lock(&f->sem);
68 __jffs2_dbg_fragtree_paranoia_check_nolock(f);
69 mutex_unlock(&f->sem);
70}
71
72void
73__jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f)
74{
75 struct jffs2_node_frag *frag;
76 int bitched = 0;
77
78 for (frag = frag_first(&f->fragtree); frag; frag = frag_next(frag)) {
79 struct jffs2_full_dnode *fn = frag->node;
80
81 if (!fn || !fn->raw)
82 continue;
83
84 if (ref_flags(fn->raw) == REF_PRISTINE) {
85 if (fn->frags > 1) {
86 JFFS2_ERROR("REF_PRISTINE node at 0x%08x had %d frags. Tell dwmw2.\n",
87 ref_offset(fn->raw), fn->frags);
88 bitched = 1;
89 }
90
91
92
93
94
95
96 if (frag->ofs & (PAGE_CACHE_SIZE-1) && frag_prev(frag)
97 && frag_prev(frag)->size < PAGE_CACHE_SIZE && frag_prev(frag)->node) {
98 JFFS2_ERROR("REF_PRISTINE node at 0x%08x had a previous non-hole frag in the same page. Tell dwmw2.\n",
99 ref_offset(fn->raw));
100 bitched = 1;
101 }
102
103 if ((frag->ofs+frag->size) & (PAGE_CACHE_SIZE-1) && frag_next(frag)
104 && frag_next(frag)->size < PAGE_CACHE_SIZE && frag_next(frag)->node) {
105 JFFS2_ERROR("REF_PRISTINE node at 0x%08x (%08x-%08x) had a following non-hole frag in the same page. Tell dwmw2.\n",
106 ref_offset(fn->raw), frag->ofs, frag->ofs+frag->size);
107 bitched = 1;
108 }
109 }
110 }
111
112 if (bitched) {
113 JFFS2_ERROR("fragtree is corrupted.\n");
114 __jffs2_dbg_dump_fragtree_nolock(f);
115 BUG();
116 }
117}
118
119
120
121
122void
123__jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
124 uint32_t ofs, int len)
125{
126 size_t retlen;
127 int ret, i;
128 unsigned char *buf;
129
130 buf = kmalloc(len, GFP_KERNEL);
131 if (!buf)
132 return;
133
134 ret = jffs2_flash_read(c, ofs, len, &retlen, buf);
135 if (ret || (retlen != len)) {
136 JFFS2_WARNING("read %d bytes failed or short. ret %d, retlen %zd.\n",
137 len, ret, retlen);
138 kfree(buf);
139 return;
140 }
141
142 ret = 0;
143 for (i = 0; i < len; i++)
144 if (buf[i] != 0xff)
145 ret = 1;
146
147 if (ret) {
148 JFFS2_ERROR("argh, about to write node to %#08x on flash, but there are data already there. The first corrupted byte is at %#08x offset.\n",
149 ofs, ofs + i);
150 __jffs2_dbg_dump_buffer(buf, len, ofs);
151 kfree(buf);
152 BUG();
153 }
154
155 kfree(buf);
156}
157
158void __jffs2_dbg_superblock_counts(struct jffs2_sb_info *c)
159{
160 struct jffs2_eraseblock *jeb;
161 uint32_t free = 0, dirty = 0, used = 0, wasted = 0,
162 erasing = 0, bad = 0, unchecked = 0;
163 int nr_counted = 0;
164 int dump = 0;
165
166 if (c->gcblock) {
167 nr_counted++;
168 free += c->gcblock->free_size;
169 dirty += c->gcblock->dirty_size;
170 used += c->gcblock->used_size;
171 wasted += c->gcblock->wasted_size;
172 unchecked += c->gcblock->unchecked_size;
173 }
174 if (c->nextblock) {
175 nr_counted++;
176 free += c->nextblock->free_size;
177 dirty += c->nextblock->dirty_size;
178 used += c->nextblock->used_size;
179 wasted += c->nextblock->wasted_size;
180 unchecked += c->nextblock->unchecked_size;
181 }
182 list_for_each_entry(jeb, &c->clean_list, list) {
183 nr_counted++;
184 free += jeb->free_size;
185 dirty += jeb->dirty_size;
186 used += jeb->used_size;
187 wasted += jeb->wasted_size;
188 unchecked += jeb->unchecked_size;
189 }
190 list_for_each_entry(jeb, &c->very_dirty_list, list) {
191 nr_counted++;
192 free += jeb->free_size;
193 dirty += jeb->dirty_size;
194 used += jeb->used_size;
195 wasted += jeb->wasted_size;
196 unchecked += jeb->unchecked_size;
197 }
198 list_for_each_entry(jeb, &c->dirty_list, list) {
199 nr_counted++;
200 free += jeb->free_size;
201 dirty += jeb->dirty_size;
202 used += jeb->used_size;
203 wasted += jeb->wasted_size;
204 unchecked += jeb->unchecked_size;
205 }
206 list_for_each_entry(jeb, &c->erasable_list, list) {
207 nr_counted++;
208 free += jeb->free_size;
209 dirty += jeb->dirty_size;
210 used += jeb->used_size;
211 wasted += jeb->wasted_size;
212 unchecked += jeb->unchecked_size;
213 }
214 list_for_each_entry(jeb, &c->erasable_pending_wbuf_list, list) {
215 nr_counted++;
216 free += jeb->free_size;
217 dirty += jeb->dirty_size;
218 used += jeb->used_size;
219 wasted += jeb->wasted_size;
220 unchecked += jeb->unchecked_size;
221 }
222 list_for_each_entry(jeb, &c->erase_pending_list, list) {
223 nr_counted++;
224 free += jeb->free_size;
225 dirty += jeb->dirty_size;
226 used += jeb->used_size;
227 wasted += jeb->wasted_size;
228 unchecked += jeb->unchecked_size;
229 }
230 list_for_each_entry(jeb, &c->free_list, list) {
231 nr_counted++;
232 free += jeb->free_size;
233 dirty += jeb->dirty_size;
234 used += jeb->used_size;
235 wasted += jeb->wasted_size;
236 unchecked += jeb->unchecked_size;
237 }
238 list_for_each_entry(jeb, &c->bad_used_list, list) {
239 nr_counted++;
240 free += jeb->free_size;
241 dirty += jeb->dirty_size;
242 used += jeb->used_size;
243 wasted += jeb->wasted_size;
244 unchecked += jeb->unchecked_size;
245 }
246
247 list_for_each_entry(jeb, &c->erasing_list, list) {
248 nr_counted++;
249 erasing += c->sector_size;
250 }
251 list_for_each_entry(jeb, &c->erase_checking_list, list) {
252 nr_counted++;
253 erasing += c->sector_size;
254 }
255 list_for_each_entry(jeb, &c->erase_complete_list, list) {
256 nr_counted++;
257 erasing += c->sector_size;
258 }
259 list_for_each_entry(jeb, &c->bad_list, list) {
260 nr_counted++;
261 bad += c->sector_size;
262 }
263
264#define check(sz) \
265 if (sz != c->sz##_size) { \
266 printk(KERN_WARNING #sz "_size mismatch counted 0x%x, c->" #sz "_size 0x%x\n", \
267 sz, c->sz##_size); \
268 dump = 1; \
269 }
270 check(free);
271 check(dirty);
272 check(used);
273 check(wasted);
274 check(unchecked);
275 check(bad);
276 check(erasing);
277#undef check
278
279 if (nr_counted != c->nr_blocks) {
280 printk(KERN_WARNING "%s counted only 0x%x blocks of 0x%x. Where are the others?\n",
281 __func__, nr_counted, c->nr_blocks);
282 dump = 1;
283 }
284
285 if (dump) {
286 __jffs2_dbg_dump_block_lists_nolock(c);
287 BUG();
288 }
289}
290
291
292
293
294void
295__jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
296 struct jffs2_eraseblock *jeb)
297{
298 spin_lock(&c->erase_completion_lock);
299 __jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
300 spin_unlock(&c->erase_completion_lock);
301}
302
303void
304__jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
305 struct jffs2_eraseblock *jeb)
306{
307 uint32_t my_used_size = 0;
308 uint32_t my_unchecked_size = 0;
309 uint32_t my_dirty_size = 0;
310 struct jffs2_raw_node_ref *ref2 = jeb->first_node;
311
312 while (ref2) {
313 uint32_t totlen = ref_totlen(c, jeb, ref2);
314
315 if (ref_offset(ref2) < jeb->offset ||
316 ref_offset(ref2) > jeb->offset + c->sector_size) {
317 JFFS2_ERROR("node_ref %#08x shouldn't be in block at %#08x.\n",
318 ref_offset(ref2), jeb->offset);
319 goto error;
320
321 }
322 if (ref_flags(ref2) == REF_UNCHECKED)
323 my_unchecked_size += totlen;
324 else if (!ref_obsolete(ref2))
325 my_used_size += totlen;
326 else
327 my_dirty_size += totlen;
328
329 if ((!ref_next(ref2)) != (ref2 == jeb->last_node)) {
330 JFFS2_ERROR("node_ref for node at %#08x (mem %p) has next at %#08x (mem %p), last_node is at %#08x (mem %p).\n",
331 ref_offset(ref2), ref2, ref_offset(ref_next(ref2)), ref_next(ref2),
332 ref_offset(jeb->last_node), jeb->last_node);
333 goto error;
334 }
335 ref2 = ref_next(ref2);
336 }
337
338 if (my_used_size != jeb->used_size) {
339 JFFS2_ERROR("Calculated used size %#08x != stored used size %#08x.\n",
340 my_used_size, jeb->used_size);
341 goto error;
342 }
343
344 if (my_unchecked_size != jeb->unchecked_size) {
345 JFFS2_ERROR("Calculated unchecked size %#08x != stored unchecked size %#08x.\n",
346 my_unchecked_size, jeb->unchecked_size);
347 goto error;
348 }
349
350#if 0
351
352 if (my_dirty_size != jeb->dirty_size + jeb->wasted_size) {
353 JFFS2_ERROR("Calculated dirty+wasted size %#08x != stored dirty + wasted size %#08x\n",
354 my_dirty_size, jeb->dirty_size + jeb->wasted_size);
355 goto error;
356 }
357
358 if (jeb->free_size == 0
359 && my_used_size + my_unchecked_size + my_dirty_size != c->sector_size) {
360 JFFS2_ERROR("The sum of all nodes in block (%#x) != size of block (%#x)\n",
361 my_used_size + my_unchecked_size + my_dirty_size,
362 c->sector_size);
363 goto error;
364 }
365#endif
366
367 if (!(c->flags & (JFFS2_SB_FLAG_BUILDING|JFFS2_SB_FLAG_SCANNING)))
368 __jffs2_dbg_superblock_counts(c);
369
370 return;
371
372error:
373 __jffs2_dbg_dump_node_refs_nolock(c, jeb);
374 __jffs2_dbg_dump_jeb_nolock(jeb);
375 __jffs2_dbg_dump_block_lists_nolock(c);
376 BUG();
377
378}
379#endif
380
381#if defined(JFFS2_DBG_DUMPS) || defined(JFFS2_DBG_PARANOIA_CHECKS)
382
383
384
385void
386__jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
387 struct jffs2_eraseblock *jeb)
388{
389 spin_lock(&c->erase_completion_lock);
390 __jffs2_dbg_dump_node_refs_nolock(c, jeb);
391 spin_unlock(&c->erase_completion_lock);
392}
393
394void
395__jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
396 struct jffs2_eraseblock *jeb)
397{
398 struct jffs2_raw_node_ref *ref;
399 int i = 0;
400
401 printk(JFFS2_DBG_MSG_PREFIX " Dump node_refs of the eraseblock %#08x\n", jeb->offset);
402 if (!jeb->first_node) {
403 printk(JFFS2_DBG_MSG_PREFIX " no nodes in the eraseblock %#08x\n", jeb->offset);
404 return;
405 }
406
407 printk(JFFS2_DBG);
408 for (ref = jeb->first_node; ; ref = ref_next(ref)) {
409 printk("%#08x", ref_offset(ref));
410#ifdef TEST_TOTLEN
411 printk("(%x)", ref->__totlen);
412#endif
413 if (ref_next(ref))
414 printk("->");
415 else
416 break;
417 if (++i == 4) {
418 i = 0;
419 printk("\n" JFFS2_DBG);
420 }
421 }
422 printk("\n");
423}
424
425
426
427
428void
429__jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
430{
431 spin_lock(&c->erase_completion_lock);
432 __jffs2_dbg_dump_jeb_nolock(jeb);
433 spin_unlock(&c->erase_completion_lock);
434}
435
436void
437__jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb)
438{
439 if (!jeb)
440 return;
441
442 printk(JFFS2_DBG_MSG_PREFIX " dump space accounting for the eraseblock at %#08x:\n",
443 jeb->offset);
444
445 printk(JFFS2_DBG "used_size: %#08x\n", jeb->used_size);
446 printk(JFFS2_DBG "dirty_size: %#08x\n", jeb->dirty_size);
447 printk(JFFS2_DBG "wasted_size: %#08x\n", jeb->wasted_size);
448 printk(JFFS2_DBG "unchecked_size: %#08x\n", jeb->unchecked_size);
449 printk(JFFS2_DBG "free_size: %#08x\n", jeb->free_size);
450}
451
452void
453__jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c)
454{
455 spin_lock(&c->erase_completion_lock);
456 __jffs2_dbg_dump_block_lists_nolock(c);
457 spin_unlock(&c->erase_completion_lock);
458}
459
460void
461__jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c)
462{
463 printk(JFFS2_DBG_MSG_PREFIX " dump JFFS2 blocks lists:\n");
464
465 printk(JFFS2_DBG "flash_size: %#08x\n", c->flash_size);
466 printk(JFFS2_DBG "used_size: %#08x\n", c->used_size);
467 printk(JFFS2_DBG "dirty_size: %#08x\n", c->dirty_size);
468 printk(JFFS2_DBG "wasted_size: %#08x\n", c->wasted_size);
469 printk(JFFS2_DBG "unchecked_size: %#08x\n", c->unchecked_size);
470 printk(JFFS2_DBG "free_size: %#08x\n", c->free_size);
471 printk(JFFS2_DBG "erasing_size: %#08x\n", c->erasing_size);
472 printk(JFFS2_DBG "bad_size: %#08x\n", c->bad_size);
473 printk(JFFS2_DBG "sector_size: %#08x\n", c->sector_size);
474 printk(JFFS2_DBG "jffs2_reserved_blocks size: %#08x\n",
475 c->sector_size * c->resv_blocks_write);
476
477 if (c->nextblock)
478 printk(JFFS2_DBG "nextblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
479 c->nextblock->offset, c->nextblock->used_size,
480 c->nextblock->dirty_size, c->nextblock->wasted_size,
481 c->nextblock->unchecked_size, c->nextblock->free_size);
482 else
483 printk(JFFS2_DBG "nextblock: NULL\n");
484
485 if (c->gcblock)
486 printk(JFFS2_DBG "gcblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
487 c->gcblock->offset, c->gcblock->used_size, c->gcblock->dirty_size,
488 c->gcblock->wasted_size, c->gcblock->unchecked_size, c->gcblock->free_size);
489 else
490 printk(JFFS2_DBG "gcblock: NULL\n");
491
492 if (list_empty(&c->clean_list)) {
493 printk(JFFS2_DBG "clean_list: empty\n");
494 } else {
495 struct list_head *this;
496 int numblocks = 0;
497 uint32_t dirty = 0;
498
499 list_for_each(this, &c->clean_list) {
500 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
501 numblocks ++;
502 dirty += jeb->wasted_size;
503 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
504 printk(JFFS2_DBG "clean_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
505 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
506 jeb->unchecked_size, jeb->free_size);
507 }
508 }
509
510 printk (JFFS2_DBG "Contains %d blocks with total wasted size %u, average wasted size: %u\n",
511 numblocks, dirty, dirty / numblocks);
512 }
513
514 if (list_empty(&c->very_dirty_list)) {
515 printk(JFFS2_DBG "very_dirty_list: empty\n");
516 } else {
517 struct list_head *this;
518 int numblocks = 0;
519 uint32_t dirty = 0;
520
521 list_for_each(this, &c->very_dirty_list) {
522 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
523
524 numblocks ++;
525 dirty += jeb->dirty_size;
526 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
527 printk(JFFS2_DBG "very_dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
528 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
529 jeb->unchecked_size, jeb->free_size);
530 }
531 }
532
533 printk (JFFS2_DBG "Contains %d blocks with total dirty size %u, average dirty size: %u\n",
534 numblocks, dirty, dirty / numblocks);
535 }
536
537 if (list_empty(&c->dirty_list)) {
538 printk(JFFS2_DBG "dirty_list: empty\n");
539 } else {
540 struct list_head *this;
541 int numblocks = 0;
542 uint32_t dirty = 0;
543
544 list_for_each(this, &c->dirty_list) {
545 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
546
547 numblocks ++;
548 dirty += jeb->dirty_size;
549 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
550 printk(JFFS2_DBG "dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
551 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
552 jeb->unchecked_size, jeb->free_size);
553 }
554 }
555
556 printk (JFFS2_DBG "contains %d blocks with total dirty size %u, average dirty size: %u\n",
557 numblocks, dirty, dirty / numblocks);
558 }
559
560 if (list_empty(&c->erasable_list)) {
561 printk(JFFS2_DBG "erasable_list: empty\n");
562 } else {
563 struct list_head *this;
564
565 list_for_each(this, &c->erasable_list) {
566 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
567
568 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
569 printk(JFFS2_DBG "erasable_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
570 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
571 jeb->unchecked_size, jeb->free_size);
572 }
573 }
574 }
575
576 if (list_empty(&c->erasing_list)) {
577 printk(JFFS2_DBG "erasing_list: empty\n");
578 } else {
579 struct list_head *this;
580
581 list_for_each(this, &c->erasing_list) {
582 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
583
584 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
585 printk(JFFS2_DBG "erasing_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
586 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
587 jeb->unchecked_size, jeb->free_size);
588 }
589 }
590 }
591 if (list_empty(&c->erase_checking_list)) {
592 printk(JFFS2_DBG "erase_checking_list: empty\n");
593 } else {
594 struct list_head *this;
595
596 list_for_each(this, &c->erase_checking_list) {
597 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
598
599 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
600 printk(JFFS2_DBG "erase_checking_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
601 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
602 jeb->unchecked_size, jeb->free_size);
603 }
604 }
605 }
606
607 if (list_empty(&c->erase_pending_list)) {
608 printk(JFFS2_DBG "erase_pending_list: empty\n");
609 } else {
610 struct list_head *this;
611
612 list_for_each(this, &c->erase_pending_list) {
613 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
614
615 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
616 printk(JFFS2_DBG "erase_pending_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
617 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
618 jeb->unchecked_size, jeb->free_size);
619 }
620 }
621 }
622
623 if (list_empty(&c->erasable_pending_wbuf_list)) {
624 printk(JFFS2_DBG "erasable_pending_wbuf_list: empty\n");
625 } else {
626 struct list_head *this;
627
628 list_for_each(this, &c->erasable_pending_wbuf_list) {
629 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
630
631 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
632 printk(JFFS2_DBG "erasable_pending_wbuf_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
633 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
634 jeb->unchecked_size, jeb->free_size);
635 }
636 }
637 }
638
639 if (list_empty(&c->free_list)) {
640 printk(JFFS2_DBG "free_list: empty\n");
641 } else {
642 struct list_head *this;
643
644 list_for_each(this, &c->free_list) {
645 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
646
647 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
648 printk(JFFS2_DBG "free_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
649 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
650 jeb->unchecked_size, jeb->free_size);
651 }
652 }
653 }
654
655 if (list_empty(&c->bad_list)) {
656 printk(JFFS2_DBG "bad_list: empty\n");
657 } else {
658 struct list_head *this;
659
660 list_for_each(this, &c->bad_list) {
661 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
662
663 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
664 printk(JFFS2_DBG "bad_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
665 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
666 jeb->unchecked_size, jeb->free_size);
667 }
668 }
669 }
670
671 if (list_empty(&c->bad_used_list)) {
672 printk(JFFS2_DBG "bad_used_list: empty\n");
673 } else {
674 struct list_head *this;
675
676 list_for_each(this, &c->bad_used_list) {
677 struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
678
679 if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
680 printk(JFFS2_DBG "bad_used_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
681 jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
682 jeb->unchecked_size, jeb->free_size);
683 }
684 }
685 }
686}
687
688void
689__jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f)
690{
691 mutex_lock(&f->sem);
692 jffs2_dbg_dump_fragtree_nolock(f);
693 mutex_unlock(&f->sem);
694}
695
696void
697__jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f)
698{
699 struct jffs2_node_frag *this = frag_first(&f->fragtree);
700 uint32_t lastofs = 0;
701 int buggy = 0;
702
703 printk(JFFS2_DBG_MSG_PREFIX " dump fragtree of ino #%u\n", f->inocache->ino);
704 while(this) {
705 if (this->node)
706 printk(JFFS2_DBG "frag %#04x-%#04x: %#08x(%d) on flash (*%p), left (%p), right (%p), parent (%p)\n",
707 this->ofs, this->ofs+this->size, ref_offset(this->node->raw),
708 ref_flags(this->node->raw), this, frag_left(this), frag_right(this),
709 frag_parent(this));
710 else
711 printk(JFFS2_DBG "frag %#04x-%#04x: hole (*%p). left (%p), right (%p), parent (%p)\n",
712 this->ofs, this->ofs+this->size, this, frag_left(this),
713 frag_right(this), frag_parent(this));
714 if (this->ofs != lastofs)
715 buggy = 1;
716 lastofs = this->ofs + this->size;
717 this = frag_next(this);
718 }
719
720 if (f->metadata)
721 printk(JFFS2_DBG "metadata at 0x%08x\n", ref_offset(f->metadata->raw));
722
723 if (buggy) {
724 JFFS2_ERROR("frag tree got a hole in it.\n");
725 BUG();
726 }
727}
728
729#define JFFS2_BUFDUMP_BYTES_PER_LINE 32
730void
731__jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs)
732{
733 int skip;
734 int i;
735
736 printk(JFFS2_DBG_MSG_PREFIX " dump from offset %#08x to offset %#08x (%x bytes).\n",
737 offs, offs + len, len);
738 i = skip = offs % JFFS2_BUFDUMP_BYTES_PER_LINE;
739 offs = offs & ~(JFFS2_BUFDUMP_BYTES_PER_LINE - 1);
740
741 if (skip != 0)
742 printk(JFFS2_DBG "%#08x: ", offs);
743
744 while (skip--)
745 printk(" ");
746
747 while (i < len) {
748 if ((i % JFFS2_BUFDUMP_BYTES_PER_LINE) == 0 && i != len -1) {
749 if (i != 0)
750 printk("\n");
751 offs += JFFS2_BUFDUMP_BYTES_PER_LINE;
752 printk(JFFS2_DBG "%0#8x: ", offs);
753 }
754
755 printk("%02x ", buf[i]);
756
757 i += 1;
758 }
759
760 printk("\n");
761}
762
763
764
765
766void
767__jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs)
768{
769 union jffs2_node_union node;
770 int len = sizeof(union jffs2_node_union);
771 size_t retlen;
772 uint32_t crc;
773 int ret;
774
775 printk(JFFS2_DBG_MSG_PREFIX " dump node at offset %#08x.\n", ofs);
776
777 ret = jffs2_flash_read(c, ofs, len, &retlen, (unsigned char *)&node);
778 if (ret || (retlen != len)) {
779 JFFS2_ERROR("read %d bytes failed or short. ret %d, retlen %zd.\n",
780 len, ret, retlen);
781 return;
782 }
783
784 printk(JFFS2_DBG "magic:\t%#04x\n", je16_to_cpu(node.u.magic));
785 printk(JFFS2_DBG "nodetype:\t%#04x\n", je16_to_cpu(node.u.nodetype));
786 printk(JFFS2_DBG "totlen:\t%#08x\n", je32_to_cpu(node.u.totlen));
787 printk(JFFS2_DBG "hdr_crc:\t%#08x\n", je32_to_cpu(node.u.hdr_crc));
788
789 crc = crc32(0, &node.u, sizeof(node.u) - 4);
790 if (crc != je32_to_cpu(node.u.hdr_crc)) {
791 JFFS2_ERROR("wrong common header CRC.\n");
792 return;
793 }
794
795 if (je16_to_cpu(node.u.magic) != JFFS2_MAGIC_BITMASK &&
796 je16_to_cpu(node.u.magic) != JFFS2_OLD_MAGIC_BITMASK)
797 {
798 JFFS2_ERROR("wrong node magic: %#04x instead of %#04x.\n",
799 je16_to_cpu(node.u.magic), JFFS2_MAGIC_BITMASK);
800 return;
801 }
802
803 switch(je16_to_cpu(node.u.nodetype)) {
804
805 case JFFS2_NODETYPE_INODE:
806
807 printk(JFFS2_DBG "the node is inode node\n");
808 printk(JFFS2_DBG "ino:\t%#08x\n", je32_to_cpu(node.i.ino));
809 printk(JFFS2_DBG "version:\t%#08x\n", je32_to_cpu(node.i.version));
810 printk(JFFS2_DBG "mode:\t%#08x\n", node.i.mode.m);
811 printk(JFFS2_DBG "uid:\t%#04x\n", je16_to_cpu(node.i.uid));
812 printk(JFFS2_DBG "gid:\t%#04x\n", je16_to_cpu(node.i.gid));
813 printk(JFFS2_DBG "isize:\t%#08x\n", je32_to_cpu(node.i.isize));
814 printk(JFFS2_DBG "atime:\t%#08x\n", je32_to_cpu(node.i.atime));
815 printk(JFFS2_DBG "mtime:\t%#08x\n", je32_to_cpu(node.i.mtime));
816 printk(JFFS2_DBG "ctime:\t%#08x\n", je32_to_cpu(node.i.ctime));
817 printk(JFFS2_DBG "offset:\t%#08x\n", je32_to_cpu(node.i.offset));
818 printk(JFFS2_DBG "csize:\t%#08x\n", je32_to_cpu(node.i.csize));
819 printk(JFFS2_DBG "dsize:\t%#08x\n", je32_to_cpu(node.i.dsize));
820 printk(JFFS2_DBG "compr:\t%#02x\n", node.i.compr);
821 printk(JFFS2_DBG "usercompr:\t%#02x\n", node.i.usercompr);
822 printk(JFFS2_DBG "flags:\t%#04x\n", je16_to_cpu(node.i.flags));
823 printk(JFFS2_DBG "data_crc:\t%#08x\n", je32_to_cpu(node.i.data_crc));
824 printk(JFFS2_DBG "node_crc:\t%#08x\n", je32_to_cpu(node.i.node_crc));
825
826 crc = crc32(0, &node.i, sizeof(node.i) - 8);
827 if (crc != je32_to_cpu(node.i.node_crc)) {
828 JFFS2_ERROR("wrong node header CRC.\n");
829 return;
830 }
831 break;
832
833 case JFFS2_NODETYPE_DIRENT:
834
835 printk(JFFS2_DBG "the node is dirent node\n");
836 printk(JFFS2_DBG "pino:\t%#08x\n", je32_to_cpu(node.d.pino));
837 printk(JFFS2_DBG "version:\t%#08x\n", je32_to_cpu(node.d.version));
838 printk(JFFS2_DBG "ino:\t%#08x\n", je32_to_cpu(node.d.ino));
839 printk(JFFS2_DBG "mctime:\t%#08x\n", je32_to_cpu(node.d.mctime));
840 printk(JFFS2_DBG "nsize:\t%#02x\n", node.d.nsize);
841 printk(JFFS2_DBG "type:\t%#02x\n", node.d.type);
842 printk(JFFS2_DBG "node_crc:\t%#08x\n", je32_to_cpu(node.d.node_crc));
843 printk(JFFS2_DBG "name_crc:\t%#08x\n", je32_to_cpu(node.d.name_crc));
844
845 node.d.name[node.d.nsize] = '\0';
846 printk(JFFS2_DBG "name:\t\"%s\"\n", node.d.name);
847
848 crc = crc32(0, &node.d, sizeof(node.d) - 8);
849 if (crc != je32_to_cpu(node.d.node_crc)) {
850 JFFS2_ERROR("wrong node header CRC.\n");
851 return;
852 }
853 break;
854
855 default:
856 printk(JFFS2_DBG "node type is unknown\n");
857 break;
858 }
859}
860#endif
861
