Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * JFFS2 -- Journalling Flash File System, Version 2. | |
3 | * | |
c00c310e | 4 | * Copyright © 2001-2007 Red Hat, Inc. |
6088c058 | 5 | * Copyright © 2004-2010 David Woodhouse <dwmw2@infradead.org> |
1da177e4 LT |
6 | * |
7 | * Created by David Woodhouse <dwmw2@infradead.org> | |
8 | * | |
9 | * For licensing information, see the file 'LICENCE' in this directory. | |
10 | * | |
1da177e4 LT |
11 | */ |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/slab.h> | |
15 | #include <linux/mtd/mtd.h> | |
16 | #include <linux/compiler.h> | |
17 | #include <linux/crc32.h> | |
18 | #include <linux/sched.h> | |
19 | #include <linux/pagemap.h> | |
20 | #include "nodelist.h" | |
21 | ||
22 | struct erase_priv_struct { | |
23 | struct jffs2_eraseblock *jeb; | |
24 | struct jffs2_sb_info *c; | |
25 | }; | |
182ec4ee | 26 | |
1da177e4 LT |
27 | #ifndef __ECOS |
28 | static void jffs2_erase_callback(struct erase_info *); | |
29 | #endif | |
30 | static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset); | |
31 | static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); | |
1da177e4 LT |
32 | static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); |
33 | ||
34 | static void jffs2_erase_block(struct jffs2_sb_info *c, | |
35 | struct jffs2_eraseblock *jeb) | |
36 | { | |
37 | int ret; | |
38 | uint32_t bad_offset; | |
39 | #ifdef __ECOS | |
40 | ret = jffs2_flash_erase(c, jeb); | |
41 | if (!ret) { | |
ef53cb02 DW |
42 | jffs2_erase_succeeded(c, jeb); |
43 | return; | |
1da177e4 LT |
44 | } |
45 | bad_offset = jeb->offset; | |
46 | #else /* Linux */ | |
47 | struct erase_info *instr; | |
48 | ||
9c261b33 JP |
49 | jffs2_dbg(1, "%s(): erase block %#08x (range %#08x-%#08x)\n", |
50 | __func__, | |
51 | jeb->offset, jeb->offset, jeb->offset + c->sector_size); | |
1da177e4 LT |
52 | instr = kmalloc(sizeof(struct erase_info) + sizeof(struct erase_priv_struct), GFP_KERNEL); |
53 | if (!instr) { | |
da320f05 | 54 | pr_warn("kmalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n"); |
ced22070 | 55 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 56 | spin_lock(&c->erase_completion_lock); |
f116629d | 57 | list_move(&jeb->list, &c->erase_pending_list); |
1da177e4 LT |
58 | c->erasing_size -= c->sector_size; |
59 | c->dirty_size += c->sector_size; | |
60 | jeb->dirty_size = c->sector_size; | |
61 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 62 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
63 | return; |
64 | } | |
65 | ||
66 | memset(instr, 0, sizeof(*instr)); | |
67 | ||
68 | instr->mtd = c->mtd; | |
69 | instr->addr = jeb->offset; | |
70 | instr->len = c->sector_size; | |
71 | instr->callback = jffs2_erase_callback; | |
72 | instr->priv = (unsigned long)(&instr[1]); | |
bb0eb217 | 73 | instr->fail_addr = MTD_FAIL_ADDR_UNKNOWN; |
182ec4ee | 74 | |
1da177e4 LT |
75 | ((struct erase_priv_struct *)instr->priv)->jeb = jeb; |
76 | ((struct erase_priv_struct *)instr->priv)->c = c; | |
77 | ||
7e1f0dc0 | 78 | ret = mtd_erase(c->mtd, instr); |
1da177e4 LT |
79 | if (!ret) |
80 | return; | |
81 | ||
82 | bad_offset = instr->fail_addr; | |
83 | kfree(instr); | |
84 | #endif /* __ECOS */ | |
85 | ||
86 | if (ret == -ENOMEM || ret == -EAGAIN) { | |
87 | /* Erase failed immediately. Refile it on the list */ | |
9c261b33 JP |
88 | jffs2_dbg(1, "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", |
89 | jeb->offset, ret); | |
ced22070 | 90 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 91 | spin_lock(&c->erase_completion_lock); |
f116629d | 92 | list_move(&jeb->list, &c->erase_pending_list); |
1da177e4 LT |
93 | c->erasing_size -= c->sector_size; |
94 | c->dirty_size += c->sector_size; | |
95 | jeb->dirty_size = c->sector_size; | |
96 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 97 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
98 | return; |
99 | } | |
100 | ||
182ec4ee | 101 | if (ret == -EROFS) |
da320f05 JP |
102 | pr_warn("Erase at 0x%08x failed immediately: -EROFS. Is the sector locked?\n", |
103 | jeb->offset); | |
1da177e4 | 104 | else |
da320f05 JP |
105 | pr_warn("Erase at 0x%08x failed immediately: errno %d\n", |
106 | jeb->offset, ret); | |
1da177e4 LT |
107 | |
108 | jffs2_erase_failed(c, jeb, bad_offset); | |
109 | } | |
110 | ||
9957abea | 111 | int jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count) |
1da177e4 LT |
112 | { |
113 | struct jffs2_eraseblock *jeb; | |
9957abea | 114 | int work_done = 0; |
1da177e4 | 115 | |
ced22070 | 116 | mutex_lock(&c->erase_free_sem); |
1da177e4 LT |
117 | |
118 | spin_lock(&c->erase_completion_lock); | |
119 | ||
120 | while (!list_empty(&c->erase_complete_list) || | |
121 | !list_empty(&c->erase_pending_list)) { | |
122 | ||
123 | if (!list_empty(&c->erase_complete_list)) { | |
124 | jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list); | |
e2bc322b | 125 | list_move(&jeb->list, &c->erase_checking_list); |
1da177e4 | 126 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 127 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
128 | jffs2_mark_erased_block(c, jeb); |
129 | ||
9957abea | 130 | work_done++; |
1da177e4 | 131 | if (!--count) { |
9c261b33 | 132 | jffs2_dbg(1, "Count reached. jffs2_erase_pending_blocks leaving\n"); |
1da177e4 LT |
133 | goto done; |
134 | } | |
135 | ||
136 | } else if (!list_empty(&c->erase_pending_list)) { | |
137 | jeb = list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list); | |
9c261b33 JP |
138 | jffs2_dbg(1, "Starting erase of pending block 0x%08x\n", |
139 | jeb->offset); | |
1da177e4 LT |
140 | list_del(&jeb->list); |
141 | c->erasing_size += c->sector_size; | |
142 | c->wasted_size -= jeb->wasted_size; | |
143 | c->free_size -= jeb->free_size; | |
144 | c->used_size -= jeb->used_size; | |
145 | c->dirty_size -= jeb->dirty_size; | |
146 | jeb->wasted_size = jeb->used_size = jeb->dirty_size = jeb->free_size = 0; | |
c38c1b61 | 147 | jffs2_free_jeb_node_refs(c, jeb); |
1da177e4 LT |
148 | list_add(&jeb->list, &c->erasing_list); |
149 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 150 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
151 | |
152 | jffs2_erase_block(c, jeb); | |
153 | ||
154 | } else { | |
155 | BUG(); | |
156 | } | |
157 | ||
158 | /* Be nice */ | |
3866f673 | 159 | cond_resched(); |
ced22070 | 160 | mutex_lock(&c->erase_free_sem); |
1da177e4 LT |
161 | spin_lock(&c->erase_completion_lock); |
162 | } | |
163 | ||
164 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 165 | mutex_unlock(&c->erase_free_sem); |
1da177e4 | 166 | done: |
9c261b33 | 167 | jffs2_dbg(1, "jffs2_erase_pending_blocks completed\n"); |
9957abea | 168 | return work_done; |
1da177e4 LT |
169 | } |
170 | ||
171 | static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) | |
172 | { | |
9c261b33 | 173 | jffs2_dbg(1, "Erase completed successfully at 0x%08x\n", jeb->offset); |
ced22070 | 174 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 175 | spin_lock(&c->erase_completion_lock); |
f116629d | 176 | list_move_tail(&jeb->list, &c->erase_complete_list); |
ae3b6ba0 DW |
177 | /* Wake the GC thread to mark them clean */ |
178 | jffs2_garbage_collect_trigger(c); | |
1da177e4 | 179 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 180 | mutex_unlock(&c->erase_free_sem); |
0717bf84 | 181 | wake_up(&c->erase_wait); |
1da177e4 LT |
182 | } |
183 | ||
184 | static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset) | |
185 | { | |
186 | /* For NAND, if the failure did not occur at the device level for a | |
187 | specific physical page, don't bother updating the bad block table. */ | |
69423d99 | 188 | if (jffs2_cleanmarker_oob(c) && (bad_offset != (uint32_t)MTD_FAIL_ADDR_UNKNOWN)) { |
1da177e4 LT |
189 | /* We had a device-level failure to erase. Let's see if we've |
190 | failed too many times. */ | |
191 | if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) { | |
192 | /* We'd like to give this block another try. */ | |
ced22070 | 193 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 194 | spin_lock(&c->erase_completion_lock); |
f116629d | 195 | list_move(&jeb->list, &c->erase_pending_list); |
1da177e4 LT |
196 | c->erasing_size -= c->sector_size; |
197 | c->dirty_size += c->sector_size; | |
198 | jeb->dirty_size = c->sector_size; | |
199 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 200 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
201 | return; |
202 | } | |
203 | } | |
204 | ||
ced22070 | 205 | mutex_lock(&c->erase_free_sem); |
1da177e4 LT |
206 | spin_lock(&c->erase_completion_lock); |
207 | c->erasing_size -= c->sector_size; | |
208 | c->bad_size += c->sector_size; | |
f116629d | 209 | list_move(&jeb->list, &c->bad_list); |
1da177e4 LT |
210 | c->nr_erasing_blocks--; |
211 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 212 | mutex_unlock(&c->erase_free_sem); |
1da177e4 | 213 | wake_up(&c->erase_wait); |
182ec4ee | 214 | } |
1da177e4 LT |
215 | |
216 | #ifndef __ECOS | |
217 | static void jffs2_erase_callback(struct erase_info *instr) | |
218 | { | |
219 | struct erase_priv_struct *priv = (void *)instr->priv; | |
220 | ||
221 | if(instr->state != MTD_ERASE_DONE) { | |
da320f05 | 222 | pr_warn("Erase at 0x%08llx finished, but state != MTD_ERASE_DONE. State is 0x%x instead.\n", |
69423d99 | 223 | (unsigned long long)instr->addr, instr->state); |
1da177e4 LT |
224 | jffs2_erase_failed(priv->c, priv->jeb, instr->fail_addr); |
225 | } else { | |
226 | jffs2_erase_succeeded(priv->c, priv->jeb); | |
182ec4ee | 227 | } |
1da177e4 LT |
228 | kfree(instr); |
229 | } | |
230 | #endif /* !__ECOS */ | |
231 | ||
232 | /* Hmmm. Maybe we should accept the extra space it takes and make | |
233 | this a standard doubly-linked list? */ | |
234 | static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c, | |
235 | struct jffs2_raw_node_ref *ref, struct jffs2_eraseblock *jeb) | |
236 | { | |
237 | struct jffs2_inode_cache *ic = NULL; | |
238 | struct jffs2_raw_node_ref **prev; | |
239 | ||
240 | prev = &ref->next_in_ino; | |
241 | ||
242 | /* Walk the inode's list once, removing any nodes from this eraseblock */ | |
243 | while (1) { | |
244 | if (!(*prev)->next_in_ino) { | |
182ec4ee | 245 | /* We're looking at the jffs2_inode_cache, which is |
1da177e4 LT |
246 | at the end of the linked list. Stash it and continue |
247 | from the beginning of the list */ | |
248 | ic = (struct jffs2_inode_cache *)(*prev); | |
249 | prev = &ic->nodes; | |
250 | continue; | |
182ec4ee | 251 | } |
1da177e4 | 252 | |
3be36675 | 253 | if (SECTOR_ADDR((*prev)->flash_offset) == jeb->offset) { |
1da177e4 LT |
254 | /* It's in the block we're erasing */ |
255 | struct jffs2_raw_node_ref *this; | |
256 | ||
257 | this = *prev; | |
258 | *prev = this->next_in_ino; | |
259 | this->next_in_ino = NULL; | |
260 | ||
261 | if (this == ref) | |
262 | break; | |
263 | ||
264 | continue; | |
265 | } | |
266 | /* Not to be deleted. Skip */ | |
267 | prev = &((*prev)->next_in_ino); | |
268 | } | |
269 | ||
270 | /* PARANOIA */ | |
271 | if (!ic) { | |
c9f700f8 KK |
272 | JFFS2_WARNING("inode_cache/xattr_datum/xattr_ref" |
273 | " not found in remove_node_refs()!!\n"); | |
1da177e4 LT |
274 | return; |
275 | } | |
276 | ||
9c261b33 JP |
277 | jffs2_dbg(1, "Removed nodes in range 0x%08x-0x%08x from ino #%u\n", |
278 | jeb->offset, jeb->offset + c->sector_size, ic->ino); | |
1da177e4 LT |
279 | |
280 | D2({ | |
281 | int i=0; | |
282 | struct jffs2_raw_node_ref *this; | |
ad361c98 | 283 | printk(KERN_DEBUG "After remove_node_refs_from_ino_list: \n"); |
1da177e4 LT |
284 | |
285 | this = ic->nodes; | |
182ec4ee | 286 | |
ad361c98 | 287 | printk(KERN_DEBUG); |
1da177e4 | 288 | while(this) { |
da320f05 | 289 | pr_cont("0x%08x(%d)->", |
ad361c98 | 290 | ref_offset(this), ref_flags(this)); |
1da177e4 | 291 | if (++i == 5) { |
ad361c98 | 292 | printk(KERN_DEBUG); |
1da177e4 LT |
293 | i=0; |
294 | } | |
295 | this = this->next_in_ino; | |
296 | } | |
da320f05 | 297 | pr_cont("\n"); |
1da177e4 LT |
298 | }); |
299 | ||
c9f700f8 KK |
300 | switch (ic->class) { |
301 | #ifdef CONFIG_JFFS2_FS_XATTR | |
302 | case RAWNODE_CLASS_XATTR_DATUM: | |
303 | jffs2_release_xattr_datum(c, (struct jffs2_xattr_datum *)ic); | |
304 | break; | |
305 | case RAWNODE_CLASS_XATTR_REF: | |
306 | jffs2_release_xattr_ref(c, (struct jffs2_xattr_ref *)ic); | |
307 | break; | |
308 | #endif | |
309 | default: | |
27c72b04 | 310 | if (ic->nodes == (void *)ic && ic->pino_nlink == 0) |
c9f700f8 KK |
311 | jffs2_del_ino_cache(c, ic); |
312 | } | |
1da177e4 LT |
313 | } |
314 | ||
c38c1b61 | 315 | void jffs2_free_jeb_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) |
1da177e4 | 316 | { |
9bfeb691 | 317 | struct jffs2_raw_node_ref *block, *ref; |
9c261b33 JP |
318 | jffs2_dbg(1, "Freeing all node refs for eraseblock offset 0x%08x\n", |
319 | jeb->offset); | |
182ec4ee | 320 | |
9bfeb691 DW |
321 | block = ref = jeb->first_node; |
322 | ||
323 | while (ref) { | |
324 | if (ref->flash_offset == REF_LINK_NODE) { | |
325 | ref = ref->next_in_ino; | |
326 | jffs2_free_refblock(block); | |
327 | block = ref; | |
328 | continue; | |
329 | } | |
330 | if (ref->flash_offset != REF_EMPTY_NODE && ref->next_in_ino) | |
1da177e4 LT |
331 | jffs2_remove_node_refs_from_ino_list(c, ref, jeb); |
332 | /* else it was a non-inode node or already removed, so don't bother */ | |
333 | ||
9bfeb691 | 334 | ref++; |
1da177e4 | 335 | } |
9bfeb691 | 336 | jeb->first_node = jeb->last_node = NULL; |
1da177e4 LT |
337 | } |
338 | ||
5d157885 | 339 | static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t *bad_offset) |
1da177e4 | 340 | { |
5d157885 TG |
341 | void *ebuf; |
342 | uint32_t ofs; | |
1da177e4 | 343 | size_t retlen; |
bce41d60 | 344 | int ret; |
10934478 | 345 | unsigned long *wordebuf; |
182ec4ee | 346 | |
10934478 AB |
347 | ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen, |
348 | &ebuf, NULL); | |
349 | if (ret != -EOPNOTSUPP) { | |
fab2c399 | 350 | if (ret) { |
9c261b33 | 351 | jffs2_dbg(1, "MTD point failed %d\n", ret); |
fab2c399 JT |
352 | goto do_flash_read; |
353 | } | |
354 | if (retlen < c->sector_size) { | |
355 | /* Don't muck about if it won't let us point to the whole erase sector */ | |
9c261b33 JP |
356 | jffs2_dbg(1, "MTD point returned len too short: 0x%zx\n", |
357 | retlen); | |
7219778a | 358 | mtd_unpoint(c->mtd, jeb->offset, retlen); |
fab2c399 JT |
359 | goto do_flash_read; |
360 | } | |
361 | wordebuf = ebuf-sizeof(*wordebuf); | |
362 | retlen /= sizeof(*wordebuf); | |
363 | do { | |
364 | if (*++wordebuf != ~0) | |
365 | break; | |
366 | } while(--retlen); | |
7219778a | 367 | mtd_unpoint(c->mtd, jeb->offset, c->sector_size); |
8a0f5723 | 368 | if (retlen) { |
da320f05 JP |
369 | pr_warn("Newly-erased block contained word 0x%lx at offset 0x%08tx\n", |
370 | *wordebuf, | |
371 | jeb->offset + | |
372 | c->sector_size-retlen * sizeof(*wordebuf)); | |
8a0f5723 AG |
373 | return -EIO; |
374 | } | |
fab2c399 JT |
375 | return 0; |
376 | } | |
377 | do_flash_read: | |
1da177e4 LT |
378 | ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
379 | if (!ebuf) { | |
da320f05 JP |
380 | pr_warn("Failed to allocate page buffer for verifying erase at 0x%08x. Refiling\n", |
381 | jeb->offset); | |
5d157885 TG |
382 | return -EAGAIN; |
383 | } | |
1da177e4 | 384 | |
9c261b33 | 385 | jffs2_dbg(1, "Verifying erase at 0x%08x\n", jeb->offset); |
1da177e4 | 386 | |
5d157885 TG |
387 | for (ofs = jeb->offset; ofs < jeb->offset + c->sector_size; ) { |
388 | uint32_t readlen = min((uint32_t)PAGE_SIZE, jeb->offset + c->sector_size - ofs); | |
389 | int i; | |
1da177e4 | 390 | |
5d157885 | 391 | *bad_offset = ofs; |
894214d1 | 392 | |
329ad399 | 393 | ret = mtd_read(c->mtd, ofs, readlen, &retlen, ebuf); |
5d157885 | 394 | if (ret) { |
da320f05 JP |
395 | pr_warn("Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", |
396 | ofs, ret); | |
8a0f5723 | 397 | ret = -EIO; |
5d157885 TG |
398 | goto fail; |
399 | } | |
400 | if (retlen != readlen) { | |
da320f05 JP |
401 | pr_warn("Short read from newly-erased block at 0x%08x. Wanted %d, got %zd\n", |
402 | ofs, readlen, retlen); | |
8a0f5723 | 403 | ret = -EIO; |
5d157885 TG |
404 | goto fail; |
405 | } | |
406 | for (i=0; i<readlen; i += sizeof(unsigned long)) { | |
407 | /* It's OK. We know it's properly aligned */ | |
408 | unsigned long *datum = ebuf + i; | |
409 | if (*datum + 1) { | |
410 | *bad_offset += i; | |
da320f05 JP |
411 | pr_warn("Newly-erased block contained word 0x%lx at offset 0x%08x\n", |
412 | *datum, *bad_offset); | |
8a0f5723 | 413 | ret = -EIO; |
5d157885 | 414 | goto fail; |
1da177e4 | 415 | } |
1da177e4 | 416 | } |
5d157885 TG |
417 | ofs += readlen; |
418 | cond_resched(); | |
1da177e4 | 419 | } |
5d157885 TG |
420 | ret = 0; |
421 | fail: | |
422 | kfree(ebuf); | |
423 | return ret; | |
424 | } | |
1da177e4 | 425 | |
5d157885 TG |
426 | static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) |
427 | { | |
5d157885 TG |
428 | size_t retlen; |
429 | int ret; | |
f4e35647 | 430 | uint32_t uninitialized_var(bad_offset); |
5d157885 TG |
431 | |
432 | switch (jffs2_block_check_erase(c, jeb, &bad_offset)) { | |
433 | case -EAGAIN: goto refile; | |
434 | case -EIO: goto filebad; | |
435 | } | |
1da177e4 | 436 | |
182ec4ee | 437 | /* Write the erase complete marker */ |
9c261b33 | 438 | jffs2_dbg(1, "Writing erased marker to block at 0x%08x\n", jeb->offset); |
5d157885 | 439 | bad_offset = jeb->offset; |
1da177e4 | 440 | |
5d157885 TG |
441 | /* Cleanmarker in oob area or no cleanmarker at all ? */ |
442 | if (jffs2_cleanmarker_oob(c) || c->cleanmarker_size == 0) { | |
1da177e4 | 443 | |
5d157885 TG |
444 | if (jffs2_cleanmarker_oob(c)) { |
445 | if (jffs2_write_nand_cleanmarker(c, jeb)) | |
446 | goto filebad; | |
447 | } | |
1da177e4 | 448 | } else { |
5d157885 | 449 | |
1da177e4 LT |
450 | struct kvec vecs[1]; |
451 | struct jffs2_unknown_node marker = { | |
452 | .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK), | |
453 | .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), | |
454 | .totlen = cpu_to_je32(c->cleanmarker_size) | |
455 | }; | |
456 | ||
046b8b98 | 457 | jffs2_prealloc_raw_node_refs(c, jeb, 1); |
5d157885 | 458 | |
1da177e4 LT |
459 | marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4)); |
460 | ||
461 | vecs[0].iov_base = (unsigned char *) ▮ | |
462 | vecs[0].iov_len = sizeof(marker); | |
463 | ret = jffs2_flash_direct_writev(c, vecs, 1, jeb->offset, &retlen); | |
182ec4ee | 464 | |
5d157885 TG |
465 | if (ret || retlen != sizeof(marker)) { |
466 | if (ret) | |
da320f05 | 467 | pr_warn("Write clean marker to block at 0x%08x failed: %d\n", |
5d157885 TG |
468 | jeb->offset, ret); |
469 | else | |
da320f05 | 470 | pr_warn("Short write to newly-erased block at 0x%08x: Wanted %zd, got %zd\n", |
5d157885 TG |
471 | jeb->offset, sizeof(marker), retlen); |
472 | ||
5d157885 | 473 | goto filebad; |
1da177e4 | 474 | } |
1da177e4 | 475 | } |
014b164e DW |
476 | /* Everything else got zeroed before the erase */ |
477 | jeb->free_size = c->sector_size; | |
1da177e4 | 478 | |
ced22070 | 479 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 480 | spin_lock(&c->erase_completion_lock); |
014b164e | 481 | |
1da177e4 | 482 | c->erasing_size -= c->sector_size; |
014b164e DW |
483 | c->free_size += c->sector_size; |
484 | ||
485 | /* Account for cleanmarker now, if it's in-band */ | |
486 | if (c->cleanmarker_size && !jffs2_cleanmarker_oob(c)) | |
487 | jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL, c->cleanmarker_size, NULL); | |
1da177e4 | 488 | |
e2bc322b | 489 | list_move_tail(&jeb->list, &c->free_list); |
1da177e4 LT |
490 | c->nr_erasing_blocks--; |
491 | c->nr_free_blocks++; | |
85a62db6 DW |
492 | |
493 | jffs2_dbg_acct_sanity_check_nolock(c, jeb); | |
494 | jffs2_dbg_acct_paranoia_check_nolock(c, jeb); | |
495 | ||
1da177e4 | 496 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 497 | mutex_unlock(&c->erase_free_sem); |
1da177e4 | 498 | wake_up(&c->erase_wait); |
5d157885 TG |
499 | return; |
500 | ||
501 | filebad: | |
5d157885 TG |
502 | jffs2_erase_failed(c, jeb, bad_offset); |
503 | return; | |
1da177e4 | 504 | |
5d157885 TG |
505 | refile: |
506 | /* Stick it back on the list from whence it came and come back later */ | |
ced22070 | 507 | mutex_lock(&c->erase_free_sem); |
5d157885 | 508 | spin_lock(&c->erase_completion_lock); |
ae3b6ba0 | 509 | jffs2_garbage_collect_trigger(c); |
e2bc322b | 510 | list_move(&jeb->list, &c->erase_complete_list); |
5d157885 | 511 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 512 | mutex_unlock(&c->erase_free_sem); |
5d157885 TG |
513 | return; |
514 | } |