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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [fs/] [jffs2/] [current/] [src/] [debug.c] - Blame information for rev 817

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1 786 skrzyp 
/*
2 
 * JFFS2 -- Journalling Flash File System, Version 2.
3 
 *
4 
 * Copyright (C) 2001-2003 Red Hat, Inc.
5 
 *
6 
 * Created by David Woodhouse <dwmw2@infradead.org>
7 
 *
8 
 * For licensing information, see the file 'LICENCE' in this directory.
9 
 *
10 
 * $Id: debug.c,v 1.1 2005/07/30 15:30:42 asl Exp $
11 
 *
12 
 */
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 "nodelist.h"
19 
#include "debug.h"
20 
 
21 
#ifdef JFFS2_DBG_PARANOIA_CHECKS
22 
/*
23 
 * Check the fragtree.
24 
 */
25 
void
26 
__jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f)
27 
{
28 
        down(&f->sem);
29 
        __jffs2_dbg_fragtree_paranoia_check_nolock(f);
30 
        up(&f->sem);
31 
}
32 
 
33 
void
34 
__jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f)
35 
{
36 
        struct jffs2_node_frag *frag;
37 
        int bitched = 0;
38 
 
39 
        for (frag = frag_first(&f->fragtree); frag; frag = frag_next(frag)) {
40 
                struct jffs2_full_dnode *fn = frag->node;
41 
 
42 
                if (!fn || !fn->raw)
43 
                        continue;
44 
 
45 
                if (ref_flags(fn->raw) == REF_PRISTINE) {
46 
                        if (fn->frags > 1) {
47 
                                JFFS2_ERROR("REF_PRISTINE node at 0x%08x had %d frags. Tell dwmw2.\n",
48 
                                                ref_offset(fn->raw), fn->frags);
49 
                                bitched = 1;
50 
                        }
51 
 
52 
                        /* A hole node which isn't multi-page should be garbage-collected
53 
                           and merged anyway, so we just check for the frag size here,
54 
                           rather than mucking around with actually reading the node
55 
                           and checking the compression type, which is the real way
56 
                           to tell a hole node. */
57 
                        if (frag->ofs & (PAGE_CACHE_SIZE-1) && frag_prev(frag)
58 
                                        && frag_prev(frag)->size < PAGE_CACHE_SIZE && frag_prev(frag)->node) {
59 
                                JFFS2_ERROR("REF_PRISTINE node at 0x%08x had a previous non-hole frag "
60 
                                                "in the same page. Tell dwmw2.\n", ref_offset(fn->raw));
61 
                                bitched = 1;
62 
                        }
63 
 
64 
                        if ((frag->ofs+frag->size) & (PAGE_CACHE_SIZE-1) && frag_next(frag)
65 
                                        && frag_next(frag)->size < PAGE_CACHE_SIZE && frag_next(frag)->node) {
66 
                                JFFS2_ERROR("REF_PRISTINE node at 0x%08x (%08x-%08x) had a following "
67 
                                                "non-hole frag in the same page. Tell dwmw2.\n",
68 
                                               ref_offset(fn->raw), frag->ofs, frag->ofs+frag->size);
69 
                                bitched = 1;
70 
                        }
71 
                }
72 
        }
73 
 
74 
        if (bitched) {
75 
                JFFS2_ERROR("fragtree is corrupted.\n");
76 
                __jffs2_dbg_dump_fragtree_nolock(f);
77 
                BUG();
78 
        }
79 
}
80 
 
81 
/*
82 
 * Check if the flash contains all 0xFF before we start writing.
83 
 */
84 
void
85 
__jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
86 
                                    uint32_t ofs, int len)
87 
{
88 
        size_t retlen;
89 
        int ret, i;
90 
        unsigned char *buf;
91 
 
92 
        buf = kmalloc(len, GFP_KERNEL);
93 
        if (!buf)
94 
                return;
95 
 
96 
        ret = jffs2_flash_read(c, ofs, len, &retlen, buf);
97 
        if (ret || (retlen != len)) {
98 
                JFFS2_WARNING("read %d bytes failed or short. ret %d, retlen %zd.\n",
99 
                                len, ret, retlen);
100 
                kfree(buf);
101 
                return;
102 
        }
103 
 
104 
        ret = 0;
105 
        for (i = 0; i < len; i++)
106 
                if (buf[i] != 0xff)
107 
                        ret = 1;
108 
 
109 
        if (ret) {
110 
                JFFS2_ERROR("argh, about to write node to %#08x on flash, but there are data "
111 
                        "already there. The first corrupted byte is at %#08x offset.\n", ofs, ofs + i);
112 
                __jffs2_dbg_dump_buffer(buf, len, ofs);
113 
                kfree(buf);
114 
                BUG();
115 
        }
116 
 
117 
        kfree(buf);
118 
}
119 
 
120 
/*
121 
 * Check the space accounting and node_ref list correctness for the JFFS2 erasable block 'jeb'.
122 
 */
123 
void
124 
__jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
125 
                                struct jffs2_eraseblock *jeb)
126 
{
127 
        spin_lock(&c->erase_completion_lock);
128 
        __jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
129 
        spin_unlock(&c->erase_completion_lock);
130 
}
131 
 
132 
void
133 
__jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
134 
                                       struct jffs2_eraseblock *jeb)
135 
{
136 
        uint32_t my_used_size = 0;
137 
        uint32_t my_unchecked_size = 0;
138 
        uint32_t my_dirty_size = 0;
139 
        struct jffs2_raw_node_ref *ref2 = jeb->first_node;
140 
 
141 
        while (ref2) {
142 
                uint32_t totlen = ref_totlen(c, jeb, ref2);
143 
 
144 
                if (ref2->flash_offset < jeb->offset ||
145 
                                ref2->flash_offset > jeb->offset + c->sector_size) {
146 
                        JFFS2_ERROR("node_ref %#08x shouldn't be in block at %#08x.\n",
147 
                                ref_offset(ref2), jeb->offset);
148 
                        goto error;
149 
 
150 
                }
151 
                if (ref_flags(ref2) == REF_UNCHECKED)
152 
                        my_unchecked_size += totlen;
153 
                else if (!ref_obsolete(ref2))
154 
                        my_used_size += totlen;
155 
                else
156 
                        my_dirty_size += totlen;
157 
 
158 
                if ((!ref2->next_phys) != (ref2 == jeb->last_node)) {
159 
                        JFFS2_ERROR("node_ref for node at %#08x (mem %p) has next_phys at %#08x (mem %p), "
160 
                                "last_node is at %#08x (mem %p).\n",
161 
                                ref_offset(ref2), ref2, ref_offset(ref2->next_phys), ref2->next_phys,
162 
                                ref_offset(jeb->last_node), jeb->last_node);
163 
                        goto error;
164 
                }
165 
                ref2 = ref2->next_phys;
166 
        }
167 
 
168 
        if (my_used_size != jeb->used_size) {
169 
                JFFS2_ERROR("Calculated used size %#08x != stored used size %#08x.\n",
170 
                        my_used_size, jeb->used_size);
171 
                goto error;
172 
        }
173 
 
174 
        if (my_unchecked_size != jeb->unchecked_size) {
175 
                JFFS2_ERROR("Calculated unchecked size %#08x != stored unchecked size %#08x.\n",
176 
                        my_unchecked_size, jeb->unchecked_size);
177 
                goto error;
178 
        }
179 
 
180 
#if 0
181 
        /* This should work when we implement ref->__totlen elemination */
182 
        if (my_dirty_size != jeb->dirty_size + jeb->wasted_size) {
183 
                JFFS2_ERROR("Calculated dirty+wasted size %#08x != stored dirty + wasted size %#08x\n",
184 
                        my_dirty_size, jeb->dirty_size + jeb->wasted_size);
185 
                goto error;
186 
        }
187 
 
188 
        if (jeb->free_size == 0
189 
                && my_used_size + my_unchecked_size + my_dirty_size != c->sector_size) {
190 
                JFFS2_ERROR("The sum of all nodes in block (%#x) != size of block (%#x)\n",
191 
                        my_used_size + my_unchecked_size + my_dirty_size,
192 
                        c->sector_size);
193 
                goto error;
194 
        }
195 
#endif
196 
 
197 
        return;
198 
 
199 
error:
200 
        __jffs2_dbg_dump_node_refs_nolock(c, jeb);
201 
        __jffs2_dbg_dump_jeb_nolock(jeb);
202 
        __jffs2_dbg_dump_block_lists_nolock(c);
203 
        BUG();
204 
 
205 
}
206 
#endif /* JFFS2_DBG_PARANOIA_CHECKS */
207 
 
208 
#if defined(JFFS2_DBG_DUMPS) || defined(JFFS2_DBG_PARANOIA_CHECKS)
209 
/*
210 
 * Dump the node_refs of the 'jeb' JFFS2 eraseblock.
211 
 */
212 
void
213 
__jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
214 
                           struct jffs2_eraseblock *jeb)
215 
{
216 
        spin_lock(&c->erase_completion_lock);
217 
        __jffs2_dbg_dump_node_refs_nolock(c, jeb);
218 
        spin_unlock(&c->erase_completion_lock);
219 
}
220 
 
221 
void
222 
__jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
223 
                                  struct jffs2_eraseblock *jeb)
224 
{
225 
        struct jffs2_raw_node_ref *ref;
226 
        int i = 0;
227 
 
228 
        JFFS2_DEBUG("Dump node_refs of the eraseblock %#08x\n", jeb->offset);
229 
        if (!jeb->first_node) {
230 
                JFFS2_DEBUG("no nodes in the eraseblock %#08x\n", jeb->offset);
231 
                return;
232 
        }
233 
 
234 
        printk(JFFS2_DBG_LVL);
235 
        for (ref = jeb->first_node; ; ref = ref->next_phys) {
236 
                printk("%#08x(%#x)", ref_offset(ref), ref->__totlen);
237 
                if (ref->next_phys)
238 
                        printk("->");
239 
                else
240 
                        break;
241 
                if (++i == 4) {
242 
                        i = 0;
243 
                        printk("\n" JFFS2_DBG_LVL);
244 
                }
245 
        }
246 
        printk("\n");
247 
}
248 
 
249 
/*
250 
 * Dump an eraseblock's space accounting.
251 
 */
252 
void
253 
__jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
254 
{
255 
        spin_lock(&c->erase_completion_lock);
256 
        __jffs2_dbg_dump_jeb_nolock(jeb);
257 
        spin_unlock(&c->erase_completion_lock);
258 
}
259 
 
260 
void
261 
__jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb)
262 
{
263 
        if (!jeb)
264 
                return;
265 
 
266 
        JFFS2_DEBUG("dump space accounting for the eraseblock at %#08x:\n",
267 
                        jeb->offset);
268 
 
269 
        printk(JFFS2_DBG_LVL "used_size: %#08x\n",      jeb->used_size);
270 
        printk(JFFS2_DBG_LVL "dirty_size: %#08x\n",     jeb->dirty_size);
271 
        printk(JFFS2_DBG_LVL "wasted_size: %#08x\n",    jeb->wasted_size);
272 
        printk(JFFS2_DBG_LVL "unchecked_size: %#08x\n", jeb->unchecked_size);
273 
        printk(JFFS2_DBG_LVL "free_size: %#08x\n",      jeb->free_size);
274 
}
275 
 
276 
void
277 
__jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c)
278 
{
279 
        spin_lock(&c->erase_completion_lock);
280 
        __jffs2_dbg_dump_block_lists_nolock(c);
281 
        spin_unlock(&c->erase_completion_lock);
282 
}
283 
 
284 
void
285 
__jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c)
286 
{
287 
        JFFS2_DEBUG("dump JFFS2 blocks lists:\n");
288 
 
289 
        printk(JFFS2_DBG_LVL "flash_size: %#08x\n",     c->flash_size);
290 
        printk(JFFS2_DBG_LVL "used_size: %#08x\n",      c->used_size);
291 
        printk(JFFS2_DBG_LVL "dirty_size: %#08x\n",     c->dirty_size);
292 
        printk(JFFS2_DBG_LVL "wasted_size: %#08x\n",    c->wasted_size);
293 
        printk(JFFS2_DBG_LVL "unchecked_size: %#08x\n", c->unchecked_size);
294 
        printk(JFFS2_DBG_LVL "free_size: %#08x\n",      c->free_size);
295 
        printk(JFFS2_DBG_LVL "erasing_size: %#08x\n",   c->erasing_size);
296 
        printk(JFFS2_DBG_LVL "bad_size: %#08x\n",       c->bad_size);
297 
        printk(JFFS2_DBG_LVL "sector_size: %#08x\n",    c->sector_size);
298 
        printk(JFFS2_DBG_LVL "jffs2_reserved_blocks size: %#08x\n",
299 
                                c->sector_size * c->resv_blocks_write);
300 
 
301 
        if (c->nextblock)
302 
                printk(JFFS2_DBG_LVL "nextblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
303 
                        "unchecked %#08x, free %#08x)\n",
304 
                        c->nextblock->offset, c->nextblock->used_size,
305 
                        c->nextblock->dirty_size, c->nextblock->wasted_size,
306 
                        c->nextblock->unchecked_size, c->nextblock->free_size);
307 
        else
308 
                printk(JFFS2_DBG_LVL "nextblock: NULL\n");
309 
 
310 
        if (c->gcblock)
311 
                printk(JFFS2_DBG_LVL "gcblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
312 
                        "unchecked %#08x, free %#08x)\n",
313 
                        c->gcblock->offset, c->gcblock->used_size, c->gcblock->dirty_size,
314 
                        c->gcblock->wasted_size, c->gcblock->unchecked_size, c->gcblock->free_size);
315 
        else
316 
                printk(JFFS2_DBG_LVL "gcblock: NULL\n");
317 
 
318 
        if (list_empty(&c->clean_list)) {
319 
                printk(JFFS2_DBG_LVL "clean_list: empty\n");
320 
        } else {
321 
                struct list_head *this;
322 
                int numblocks = 0;
323 
                uint32_t dirty = 0;
324 
 
325 
                list_for_each(this, &c->clean_list) {
326 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
327 
                        numblocks ++;
328 
                        dirty += jeb->wasted_size;
329 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
330 
                                printk(JFFS2_DBG_LVL "clean_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
331 
                                        "unchecked %#08x, free %#08x)\n",
332 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
333 
                                        jeb->unchecked_size, jeb->free_size);
334 
                        }
335 
                }
336 
 
337 
                printk (JFFS2_DBG_LVL "Contains %d blocks with total wasted size %u, average wasted size: %u\n",
338 
                        numblocks, dirty, dirty / numblocks);
339 
        }
340 
 
341 
        if (list_empty(&c->very_dirty_list)) {
342 
                printk(JFFS2_DBG_LVL "very_dirty_list: empty\n");
343 
        } else {
344 
                struct list_head *this;
345 
                int numblocks = 0;
346 
                uint32_t dirty = 0;
347 
 
348 
                list_for_each(this, &c->very_dirty_list) {
349 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
350 
 
351 
                        numblocks ++;
352 
                        dirty += jeb->dirty_size;
353 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
354 
                                printk(JFFS2_DBG_LVL "very_dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
355 
                                        "unchecked %#08x, free %#08x)\n",
356 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
357 
                                        jeb->unchecked_size, jeb->free_size);
358 
                        }
359 
                }
360 
 
361 
                printk (JFFS2_DBG_LVL "Contains %d blocks with total dirty size %u, average dirty size: %u\n",
362 
                        numblocks, dirty, dirty / numblocks);
363 
        }
364 
 
365 
        if (list_empty(&c->dirty_list)) {
366 
                printk(JFFS2_DBG_LVL "dirty_list: empty\n");
367 
        } else {
368 
                struct list_head *this;
369 
                int numblocks = 0;
370 
                uint32_t dirty = 0;
371 
 
372 
                list_for_each(this, &c->dirty_list) {
373 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
374 
 
375 
                        numblocks ++;
376 
                        dirty += jeb->dirty_size;
377 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
378 
                                printk(JFFS2_DBG_LVL "dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
379 
                                        "unchecked %#08x, free %#08x)\n",
380 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
381 
                                        jeb->unchecked_size, jeb->free_size);
382 
                        }
383 
                }
384 
 
385 
                printk (JFFS2_DBG_LVL "contains %d blocks with total dirty size %u, average dirty size: %u\n",
386 
                        numblocks, dirty, dirty / numblocks);
387 
        }
388 
 
389 
        if (list_empty(&c->erasable_list)) {
390 
                printk(JFFS2_DBG_LVL "erasable_list: empty\n");
391 
        } else {
392 
                struct list_head *this;
393 
 
394 
                list_for_each(this, &c->erasable_list) {
395 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
396 
 
397 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
398 
                                printk(JFFS2_DBG_LVL "erasable_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
399 
                                        "unchecked %#08x, free %#08x)\n",
400 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
401 
                                        jeb->unchecked_size, jeb->free_size);
402 
                        }
403 
                }
404 
        }
405 
 
406 
        if (list_empty(&c->erasing_list)) {
407 
                printk(JFFS2_DBG_LVL "erasing_list: empty\n");
408 
        } else {
409 
                struct list_head *this;
410 
 
411 
                list_for_each(this, &c->erasing_list) {
412 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
413 
 
414 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
415 
                                printk(JFFS2_DBG_LVL "erasing_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
416 
                                        "unchecked %#08x, free %#08x)\n",
417 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
418 
                                        jeb->unchecked_size, jeb->free_size);
419 
                        }
420 
                }
421 
        }
422 
 
423 
        if (list_empty(&c->erase_pending_list)) {
424 
                printk(JFFS2_DBG_LVL "erase_pending_list: empty\n");
425 
        } else {
426 
                struct list_head *this;
427 
 
428 
                list_for_each(this, &c->erase_pending_list) {
429 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
430 
 
431 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
432 
                                printk(JFFS2_DBG_LVL "erase_pending_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
433 
                                        "unchecked %#08x, free %#08x)\n",
434 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
435 
                                        jeb->unchecked_size, jeb->free_size);
436 
                        }
437 
                }
438 
        }
439 
 
440 
        if (list_empty(&c->erasable_pending_wbuf_list)) {
441 
                printk(JFFS2_DBG_LVL "erasable_pending_wbuf_list: empty\n");
442 
        } else {
443 
                struct list_head *this;
444 
 
445 
                list_for_each(this, &c->erasable_pending_wbuf_list) {
446 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
447 
 
448 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
449 
                                printk(JFFS2_DBG_LVL "erasable_pending_wbuf_list: %#08x (used %#08x, dirty %#08x, "
450 
                                        "wasted %#08x, unchecked %#08x, free %#08x)\n",
451 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
452 
                                        jeb->unchecked_size, jeb->free_size);
453 
                        }
454 
                }
455 
        }
456 
 
457 
        if (list_empty(&c->free_list)) {
458 
                printk(JFFS2_DBG_LVL "free_list: empty\n");
459 
        } else {
460 
                struct list_head *this;
461 
 
462 
                list_for_each(this, &c->free_list) {
463 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
464 
 
465 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
466 
                                printk(JFFS2_DBG_LVL "free_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
467 
                                        "unchecked %#08x, free %#08x)\n",
468 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
469 
                                        jeb->unchecked_size, jeb->free_size);
470 
                        }
471 
                }
472 
        }
473 
 
474 
        if (list_empty(&c->bad_list)) {
475 
                printk(JFFS2_DBG_LVL "bad_list: empty\n");
476 
        } else {
477 
                struct list_head *this;
478 
 
479 
                list_for_each(this, &c->bad_list) {
480 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
481 
 
482 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
483 
                                printk(JFFS2_DBG_LVL "bad_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
484 
                                        "unchecked %#08x, free %#08x)\n",
485 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
486 
                                        jeb->unchecked_size, jeb->free_size);
487 
                        }
488 
                }
489 
        }
490 
 
491 
        if (list_empty(&c->bad_used_list)) {
492 
                printk(JFFS2_DBG_LVL "bad_used_list: empty\n");
493 
        } else {
494 
                struct list_head *this;
495 
 
496 
                list_for_each(this, &c->bad_used_list) {
497 
                        struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
498 
 
499 
                        if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
500 
                                printk(JFFS2_DBG_LVL "bad_used_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, "
501 
                                        "unchecked %#08x, free %#08x)\n",
502 
                                        jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
503 
                                        jeb->unchecked_size, jeb->free_size);
504 
                        }
505 
                }
506 
        }
507 
}
508 
 
509 
void
510 
__jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f)
511 
{
512 
        down(&f->sem);
513 
        jffs2_dbg_dump_fragtree_nolock(f);
514 
        up(&f->sem);
515 
}
516 
 
517 
void
518 
__jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f)
519 
{
520 
        struct jffs2_node_frag *this = frag_first(&f->fragtree);
521 
        uint32_t lastofs = 0;
522 
        int buggy = 0;
523 
 
524 
        JFFS2_DEBUG("dump fragtree of ino #%u\n", f->inocache->ino);
525 
        while(this) {
526 
                if (this->node)
527 
                        printk(JFFS2_DBG_LVL "frag %#04x-%#04x: %#08x(%d) on flash (*%p), left (%p), "
528 
                                "right (%p), parent (%p)\n",
529 
                                this->ofs, this->ofs+this->size, ref_offset(this->node->raw),
530 
                                ref_flags(this->node->raw), this, frag_left(this), frag_right(this),
531 
                                frag_parent(this));
532 
                else
533 
                        printk(JFFS2_DBG_LVL "frag %#04x-%#04x: hole (*%p). left (%p), right (%p), parent (%p)\n",
534 
                                this->ofs, this->ofs+this->size, this, frag_left(this),
535 
                                frag_right(this), frag_parent(this));
536 
                if (this->ofs != lastofs)
537 
                        buggy = 1;
538 
                lastofs = this->ofs + this->size;
539 
                this = frag_next(this);
540 
        }
541 
 
542 
        if (f->metadata)
543 
                printk(JFFS2_DBG_LVL "metadata at 0x%08x\n", ref_offset(f->metadata->raw));
544 
 
545 
        if (buggy) {
546 
                JFFS2_ERROR("frag tree got a hole in it.\n");
547 
                BUG();
548 
        }
549 
}
550 
 
551 
#define JFFS2_BUFDUMP_BYTES_PER_LINE    32
552 
void
553 
__jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs)
554 
{
555 
        int skip;
556 
        int i;
557 
 
558 
        JFFS2_DEBUG("dump from offset %#08x to offset %#08x (%x bytes).\n",
559 
                offs, offs + len, len);
560 
        i = skip = offs % JFFS2_BUFDUMP_BYTES_PER_LINE;
561 
        offs = offs & ~(JFFS2_BUFDUMP_BYTES_PER_LINE - 1);
562 
 
563 
        if (skip != 0)
564 
                printk(JFFS2_DBG_LVL "%#08x: ", offs);
565 
 
566 
        while (skip--)
567 
                printk("   ");
568 
 
569 
        while (i < len) {
570 
                if ((i % JFFS2_BUFDUMP_BYTES_PER_LINE) == 0 && i != len -1) {
571 
                        if (i != 0)
572 
                                printk("\n");
573 
                        offs += JFFS2_BUFDUMP_BYTES_PER_LINE;
574 
                        printk(JFFS2_DBG_LVL "%0#8x: ", offs);
575 
                }
576 
 
577 
                printk("%02x ", buf[i]);
578 
 
579 
                i += 1;
580 
        }
581 
 
582 
        printk("\n");
583 
}
584 
 
585 
/*
586 
 * Dump a JFFS2 node.
587 
 */
588 
void
589 
__jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs)
590 
{
591 
        union jffs2_node_union node;
592 
        int len = sizeof(union jffs2_node_union);
593 
        size_t retlen;
594 
        uint32_t crc;
595 
        int ret;
596 
 
597 
        JFFS2_DEBUG("dump node at offset %#08x.\n", ofs);
598 
 
599 
        ret = jffs2_flash_read(c, ofs, len, &retlen, (unsigned char *)&node);
600 
        if (ret || (retlen != len)) {
601 
                JFFS2_ERROR("read %d bytes failed or short. ret %d, retlen %zd.\n",
602 
                        len, ret, retlen);
603 
                return;
604 
        }
605 
 
606 
        printk(JFFS2_DBG_LVL "magic:\t%#04x\n",
607 
                je16_to_cpu(node.u.magic));
608 
        printk(JFFS2_DBG_LVL "nodetype:\t%#04x\n",
609 
                je16_to_cpu(node.u.nodetype));
610 
        printk(JFFS2_DBG_LVL "totlen:\t%#08x\n",
611 
                je32_to_cpu(node.u.totlen));
612 
        printk(JFFS2_DBG_LVL "hdr_crc:\t%#08x\n",
613 
                je32_to_cpu(node.u.hdr_crc));
614 
 
615 
        crc = crc32(0, &node.u, sizeof(node.u) - 4);
616 
        if (crc != je32_to_cpu(node.u.hdr_crc)) {
617 
                JFFS2_ERROR("wrong common header CRC.\n");
618 
                return;
619 
        }
620 
 
621 
        if (je16_to_cpu(node.u.magic) != JFFS2_MAGIC_BITMASK &&
622 
                je16_to_cpu(node.u.magic) != JFFS2_OLD_MAGIC_BITMASK)
623 
        {
624 
                JFFS2_ERROR("wrong node magic: %#04x instead of %#04x.\n",
625 
                        je16_to_cpu(node.u.magic), JFFS2_MAGIC_BITMASK);
626 
                return;
627 
        }
628 
 
629 
        switch(je16_to_cpu(node.u.nodetype)) {
630 
 
631 
        case JFFS2_NODETYPE_INODE:
632 
 
633 
                printk(JFFS2_DBG_LVL "the node is inode node\n");
634 
                printk(JFFS2_DBG_LVL "ino:\t%#08x\n",
635 
                                je32_to_cpu(node.i.ino));
636 
                printk(JFFS2_DBG_LVL "version:\t%#08x\n",
637 
                                je32_to_cpu(node.i.version));
638 
                printk(JFFS2_DBG_LVL "mode:\t%#08x\n",
639 
                                node.i.mode.m);
640 
                printk(JFFS2_DBG_LVL "uid:\t%#04x\n",
641 
                                je16_to_cpu(node.i.uid));
642 
                printk(JFFS2_DBG_LVL "gid:\t%#04x\n",
643 
                                je16_to_cpu(node.i.gid));
644 
                printk(JFFS2_DBG_LVL "isize:\t%#08x\n",
645 
                                je32_to_cpu(node.i.isize));
646 
                printk(JFFS2_DBG_LVL "atime:\t%#08x\n",
647 
                                je32_to_cpu(node.i.atime));
648 
                printk(JFFS2_DBG_LVL "mtime:\t%#08x\n",
649 
                                je32_to_cpu(node.i.mtime));
650 
                printk(JFFS2_DBG_LVL "ctime:\t%#08x\n",
651 
                                je32_to_cpu(node.i.ctime));
652 
                printk(JFFS2_DBG_LVL "offset:\t%#08x\n",
653 
                                je32_to_cpu(node.i.offset));
654 
                printk(JFFS2_DBG_LVL "csize:\t%#08x\n",
655 
                                je32_to_cpu(node.i.csize));
656 
                printk(JFFS2_DBG_LVL "dsize:\t%#08x\n",
657 
                                je32_to_cpu(node.i.dsize));
658 
                printk(JFFS2_DBG_LVL "compr:\t%#02x\n",
659 
                                node.i.compr);
660 
                printk(JFFS2_DBG_LVL "usercompr:\t%#02x\n",
661 
                                node.i.usercompr);
662 
                printk(JFFS2_DBG_LVL "flags:\t%#04x\n",
663 
                                je16_to_cpu(node.i.flags));
664 
                printk(JFFS2_DBG_LVL "data_crc:\t%#08x\n",
665 
                                je32_to_cpu(node.i.data_crc));
666 
                printk(JFFS2_DBG_LVL "node_crc:\t%#08x\n",
667 
                                je32_to_cpu(node.i.node_crc));
668 
                crc = crc32(0, &node.i, sizeof(node.i) - 8);
669 
                if (crc != je32_to_cpu(node.i.node_crc)) {
670 
                        JFFS2_ERROR("wrong node header CRC.\n");
671 
                        return;
672 
                }
673 
                break;
674 
 
675 
        case JFFS2_NODETYPE_DIRENT:
676 
 
677 
                printk(JFFS2_DBG_LVL "the node is dirent node\n");
678 
                printk(JFFS2_DBG_LVL "pino:\t%#08x\n",
679 
                                je32_to_cpu(node.d.pino));
680 
                printk(JFFS2_DBG_LVL "version:\t%#08x\n",
681 
                                je32_to_cpu(node.d.version));
682 
                printk(JFFS2_DBG_LVL "ino:\t%#08x\n",
683 
                                je32_to_cpu(node.d.ino));
684 
                printk(JFFS2_DBG_LVL "mctime:\t%#08x\n",
685 
                                je32_to_cpu(node.d.mctime));
686 
                printk(JFFS2_DBG_LVL "nsize:\t%#02x\n",
687 
                                node.d.nsize);
688 
                printk(JFFS2_DBG_LVL "type:\t%#02x\n",
689 
                                node.d.type);
690 
                printk(JFFS2_DBG_LVL "node_crc:\t%#08x\n",
691 
                                je32_to_cpu(node.d.node_crc));
692 
                printk(JFFS2_DBG_LVL "name_crc:\t%#08x\n",
693 
                                je32_to_cpu(node.d.name_crc));
694 
 
695 
                node.d.name[node.d.nsize] = '\0';
696 
                printk(JFFS2_DBG_LVL "name:\t\"%s\"\n", node.d.name);
697 
 
698 
                crc = crc32(0, &node.d, sizeof(node.d) - 8);
699 
                if (crc != je32_to_cpu(node.d.node_crc)) {
700 
                        JFFS2_ERROR("wrong node header CRC.\n");
701 
                        return;
702 
                }
703 
                break;
704 
 
705 
        default:
706 
                printk(JFFS2_DBG_LVL "node type is unknown\n");
707 
                break;
708 
        }
709 
}
710 
#endif /* JFFS2_DBG_DUMPS || JFFS2_DBG_PARANOIA_CHECKS */

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