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 | ||
5a528957 JP |
13 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
14 | ||
1da177e4 LT |
15 | #include <linux/kernel.h> |
16 | #include <linux/slab.h> | |
17 | #include <linux/mtd/mtd.h> | |
18 | #include <linux/compiler.h> | |
19 | #include <linux/crc32.h> | |
20 | #include <linux/sched.h> | |
21 | #include <linux/pagemap.h> | |
22 | #include "nodelist.h" | |
23 | ||
1da177e4 LT |
24 | static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset); |
25 | static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); | |
1da177e4 LT |
26 | static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); |
27 | ||
28 | static void jffs2_erase_block(struct jffs2_sb_info *c, | |
29 | struct jffs2_eraseblock *jeb) | |
30 | { | |
31 | int ret; | |
32 | uint32_t bad_offset; | |
33 | #ifdef __ECOS | |
34 | ret = jffs2_flash_erase(c, jeb); | |
35 | if (!ret) { | |
ef53cb02 DW |
36 | jffs2_erase_succeeded(c, jeb); |
37 | return; | |
1da177e4 LT |
38 | } |
39 | bad_offset = jeb->offset; | |
40 | #else /* Linux */ | |
41 | struct erase_info *instr; | |
42 | ||
9c261b33 JP |
43 | jffs2_dbg(1, "%s(): erase block %#08x (range %#08x-%#08x)\n", |
44 | __func__, | |
45 | jeb->offset, jeb->offset, jeb->offset + c->sector_size); | |
22abf318 | 46 | instr = kzalloc(sizeof(struct erase_info), GFP_KERNEL); |
1da177e4 | 47 | if (!instr) { |
22abf318 | 48 | pr_warn("kzalloc for struct erase_info in jffs2_erase_block failed. Refiling block for later\n"); |
ced22070 | 49 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 50 | spin_lock(&c->erase_completion_lock); |
f116629d | 51 | list_move(&jeb->list, &c->erase_pending_list); |
1da177e4 LT |
52 | c->erasing_size -= c->sector_size; |
53 | c->dirty_size += c->sector_size; | |
54 | jeb->dirty_size = c->sector_size; | |
55 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 56 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
57 | return; |
58 | } | |
59 | ||
1da177e4 LT |
60 | instr->addr = jeb->offset; |
61 | instr->len = c->sector_size; | |
1da177e4 | 62 | |
7e1f0dc0 | 63 | ret = mtd_erase(c->mtd, instr); |
884cfd90 BB |
64 | if (!ret) { |
65 | jffs2_erase_succeeded(c, jeb); | |
66 | kfree(instr); | |
1da177e4 | 67 | return; |
884cfd90 | 68 | } |
1da177e4 LT |
69 | |
70 | bad_offset = instr->fail_addr; | |
71 | kfree(instr); | |
72 | #endif /* __ECOS */ | |
73 | ||
74 | if (ret == -ENOMEM || ret == -EAGAIN) { | |
75 | /* Erase failed immediately. Refile it on the list */ | |
9c261b33 JP |
76 | jffs2_dbg(1, "Erase at 0x%08x failed: %d. Refiling on erase_pending_list\n", |
77 | jeb->offset, ret); | |
ced22070 | 78 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 79 | spin_lock(&c->erase_completion_lock); |
f116629d | 80 | list_move(&jeb->list, &c->erase_pending_list); |
1da177e4 LT |
81 | c->erasing_size -= c->sector_size; |
82 | c->dirty_size += c->sector_size; | |
83 | jeb->dirty_size = c->sector_size; | |
84 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 85 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
86 | return; |
87 | } | |
88 | ||
182ec4ee | 89 | if (ret == -EROFS) |
da320f05 JP |
90 | pr_warn("Erase at 0x%08x failed immediately: -EROFS. Is the sector locked?\n", |
91 | jeb->offset); | |
1da177e4 | 92 | else |
da320f05 JP |
93 | pr_warn("Erase at 0x%08x failed immediately: errno %d\n", |
94 | jeb->offset, ret); | |
1da177e4 LT |
95 | |
96 | jffs2_erase_failed(c, jeb, bad_offset); | |
97 | } | |
98 | ||
9957abea | 99 | int jffs2_erase_pending_blocks(struct jffs2_sb_info *c, int count) |
1da177e4 LT |
100 | { |
101 | struct jffs2_eraseblock *jeb; | |
9957abea | 102 | int work_done = 0; |
1da177e4 | 103 | |
ced22070 | 104 | mutex_lock(&c->erase_free_sem); |
1da177e4 LT |
105 | |
106 | spin_lock(&c->erase_completion_lock); | |
107 | ||
108 | while (!list_empty(&c->erase_complete_list) || | |
109 | !list_empty(&c->erase_pending_list)) { | |
110 | ||
111 | if (!list_empty(&c->erase_complete_list)) { | |
112 | jeb = list_entry(c->erase_complete_list.next, struct jffs2_eraseblock, list); | |
e2bc322b | 113 | list_move(&jeb->list, &c->erase_checking_list); |
1da177e4 | 114 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 115 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
116 | jffs2_mark_erased_block(c, jeb); |
117 | ||
9957abea | 118 | work_done++; |
1da177e4 | 119 | if (!--count) { |
9c261b33 | 120 | jffs2_dbg(1, "Count reached. jffs2_erase_pending_blocks leaving\n"); |
1da177e4 LT |
121 | goto done; |
122 | } | |
123 | ||
124 | } else if (!list_empty(&c->erase_pending_list)) { | |
125 | jeb = list_entry(c->erase_pending_list.next, struct jffs2_eraseblock, list); | |
9c261b33 JP |
126 | jffs2_dbg(1, "Starting erase of pending block 0x%08x\n", |
127 | jeb->offset); | |
1da177e4 LT |
128 | list_del(&jeb->list); |
129 | c->erasing_size += c->sector_size; | |
130 | c->wasted_size -= jeb->wasted_size; | |
131 | c->free_size -= jeb->free_size; | |
132 | c->used_size -= jeb->used_size; | |
133 | c->dirty_size -= jeb->dirty_size; | |
134 | jeb->wasted_size = jeb->used_size = jeb->dirty_size = jeb->free_size = 0; | |
c38c1b61 | 135 | jffs2_free_jeb_node_refs(c, jeb); |
1da177e4 LT |
136 | list_add(&jeb->list, &c->erasing_list); |
137 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 138 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
139 | |
140 | jffs2_erase_block(c, jeb); | |
141 | ||
142 | } else { | |
143 | BUG(); | |
144 | } | |
145 | ||
146 | /* Be nice */ | |
3866f673 | 147 | cond_resched(); |
ced22070 | 148 | mutex_lock(&c->erase_free_sem); |
1da177e4 LT |
149 | spin_lock(&c->erase_completion_lock); |
150 | } | |
151 | ||
152 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 153 | mutex_unlock(&c->erase_free_sem); |
1da177e4 | 154 | done: |
9c261b33 | 155 | jffs2_dbg(1, "jffs2_erase_pending_blocks completed\n"); |
9957abea | 156 | return work_done; |
1da177e4 LT |
157 | } |
158 | ||
159 | static void jffs2_erase_succeeded(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) | |
160 | { | |
9c261b33 | 161 | jffs2_dbg(1, "Erase completed successfully at 0x%08x\n", jeb->offset); |
ced22070 | 162 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 163 | spin_lock(&c->erase_completion_lock); |
f116629d | 164 | list_move_tail(&jeb->list, &c->erase_complete_list); |
ae3b6ba0 DW |
165 | /* Wake the GC thread to mark them clean */ |
166 | jffs2_garbage_collect_trigger(c); | |
1da177e4 | 167 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 168 | mutex_unlock(&c->erase_free_sem); |
0717bf84 | 169 | wake_up(&c->erase_wait); |
1da177e4 LT |
170 | } |
171 | ||
172 | static void jffs2_erase_failed(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t bad_offset) | |
173 | { | |
174 | /* For NAND, if the failure did not occur at the device level for a | |
175 | specific physical page, don't bother updating the bad block table. */ | |
69423d99 | 176 | if (jffs2_cleanmarker_oob(c) && (bad_offset != (uint32_t)MTD_FAIL_ADDR_UNKNOWN)) { |
1da177e4 LT |
177 | /* We had a device-level failure to erase. Let's see if we've |
178 | failed too many times. */ | |
179 | if (!jffs2_write_nand_badblock(c, jeb, bad_offset)) { | |
180 | /* We'd like to give this block another try. */ | |
ced22070 | 181 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 182 | spin_lock(&c->erase_completion_lock); |
f116629d | 183 | list_move(&jeb->list, &c->erase_pending_list); |
1da177e4 LT |
184 | c->erasing_size -= c->sector_size; |
185 | c->dirty_size += c->sector_size; | |
186 | jeb->dirty_size = c->sector_size; | |
187 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 188 | mutex_unlock(&c->erase_free_sem); |
1da177e4 LT |
189 | return; |
190 | } | |
191 | } | |
192 | ||
ced22070 | 193 | mutex_lock(&c->erase_free_sem); |
1da177e4 LT |
194 | spin_lock(&c->erase_completion_lock); |
195 | c->erasing_size -= c->sector_size; | |
196 | c->bad_size += c->sector_size; | |
f116629d | 197 | list_move(&jeb->list, &c->bad_list); |
1da177e4 LT |
198 | c->nr_erasing_blocks--; |
199 | spin_unlock(&c->erase_completion_lock); | |
ced22070 | 200 | mutex_unlock(&c->erase_free_sem); |
1da177e4 | 201 | wake_up(&c->erase_wait); |
182ec4ee | 202 | } |
1da177e4 | 203 | |
1da177e4 LT |
204 | /* Hmmm. Maybe we should accept the extra space it takes and make |
205 | this a standard doubly-linked list? */ | |
206 | static inline void jffs2_remove_node_refs_from_ino_list(struct jffs2_sb_info *c, | |
207 | struct jffs2_raw_node_ref *ref, struct jffs2_eraseblock *jeb) | |
208 | { | |
209 | struct jffs2_inode_cache *ic = NULL; | |
210 | struct jffs2_raw_node_ref **prev; | |
211 | ||
212 | prev = &ref->next_in_ino; | |
213 | ||
214 | /* Walk the inode's list once, removing any nodes from this eraseblock */ | |
215 | while (1) { | |
216 | if (!(*prev)->next_in_ino) { | |
182ec4ee | 217 | /* We're looking at the jffs2_inode_cache, which is |
1da177e4 LT |
218 | at the end of the linked list. Stash it and continue |
219 | from the beginning of the list */ | |
220 | ic = (struct jffs2_inode_cache *)(*prev); | |
221 | prev = &ic->nodes; | |
222 | continue; | |
182ec4ee | 223 | } |
1da177e4 | 224 | |
3be36675 | 225 | if (SECTOR_ADDR((*prev)->flash_offset) == jeb->offset) { |
1da177e4 LT |
226 | /* It's in the block we're erasing */ |
227 | struct jffs2_raw_node_ref *this; | |
228 | ||
229 | this = *prev; | |
230 | *prev = this->next_in_ino; | |
231 | this->next_in_ino = NULL; | |
232 | ||
233 | if (this == ref) | |
234 | break; | |
235 | ||
236 | continue; | |
237 | } | |
238 | /* Not to be deleted. Skip */ | |
239 | prev = &((*prev)->next_in_ino); | |
240 | } | |
241 | ||
242 | /* PARANOIA */ | |
243 | if (!ic) { | |
c9f700f8 KK |
244 | JFFS2_WARNING("inode_cache/xattr_datum/xattr_ref" |
245 | " not found in remove_node_refs()!!\n"); | |
1da177e4 LT |
246 | return; |
247 | } | |
248 | ||
9c261b33 JP |
249 | jffs2_dbg(1, "Removed nodes in range 0x%08x-0x%08x from ino #%u\n", |
250 | jeb->offset, jeb->offset + c->sector_size, ic->ino); | |
1da177e4 LT |
251 | |
252 | D2({ | |
253 | int i=0; | |
254 | struct jffs2_raw_node_ref *this; | |
ad361c98 | 255 | printk(KERN_DEBUG "After remove_node_refs_from_ino_list: \n"); |
1da177e4 LT |
256 | |
257 | this = ic->nodes; | |
182ec4ee | 258 | |
ad361c98 | 259 | printk(KERN_DEBUG); |
1da177e4 | 260 | while(this) { |
da320f05 | 261 | pr_cont("0x%08x(%d)->", |
ad361c98 | 262 | ref_offset(this), ref_flags(this)); |
1da177e4 | 263 | if (++i == 5) { |
ad361c98 | 264 | printk(KERN_DEBUG); |
1da177e4 LT |
265 | i=0; |
266 | } | |
267 | this = this->next_in_ino; | |
268 | } | |
da320f05 | 269 | pr_cont("\n"); |
1da177e4 LT |
270 | }); |
271 | ||
c9f700f8 KK |
272 | switch (ic->class) { |
273 | #ifdef CONFIG_JFFS2_FS_XATTR | |
274 | case RAWNODE_CLASS_XATTR_DATUM: | |
275 | jffs2_release_xattr_datum(c, (struct jffs2_xattr_datum *)ic); | |
276 | break; | |
277 | case RAWNODE_CLASS_XATTR_REF: | |
278 | jffs2_release_xattr_ref(c, (struct jffs2_xattr_ref *)ic); | |
279 | break; | |
280 | #endif | |
281 | default: | |
27c72b04 | 282 | if (ic->nodes == (void *)ic && ic->pino_nlink == 0) |
c9f700f8 KK |
283 | jffs2_del_ino_cache(c, ic); |
284 | } | |
1da177e4 LT |
285 | } |
286 | ||
c38c1b61 | 287 | void jffs2_free_jeb_node_refs(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) |
1da177e4 | 288 | { |
9bfeb691 | 289 | struct jffs2_raw_node_ref *block, *ref; |
9c261b33 JP |
290 | jffs2_dbg(1, "Freeing all node refs for eraseblock offset 0x%08x\n", |
291 | jeb->offset); | |
182ec4ee | 292 | |
9bfeb691 DW |
293 | block = ref = jeb->first_node; |
294 | ||
295 | while (ref) { | |
296 | if (ref->flash_offset == REF_LINK_NODE) { | |
297 | ref = ref->next_in_ino; | |
298 | jffs2_free_refblock(block); | |
299 | block = ref; | |
300 | continue; | |
301 | } | |
302 | if (ref->flash_offset != REF_EMPTY_NODE && ref->next_in_ino) | |
1da177e4 LT |
303 | jffs2_remove_node_refs_from_ino_list(c, ref, jeb); |
304 | /* else it was a non-inode node or already removed, so don't bother */ | |
305 | ||
9bfeb691 | 306 | ref++; |
1da177e4 | 307 | } |
9bfeb691 | 308 | jeb->first_node = jeb->last_node = NULL; |
1da177e4 LT |
309 | } |
310 | ||
5d157885 | 311 | static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb, uint32_t *bad_offset) |
1da177e4 | 312 | { |
5d157885 TG |
313 | void *ebuf; |
314 | uint32_t ofs; | |
1da177e4 | 315 | size_t retlen; |
bce41d60 | 316 | int ret; |
10934478 | 317 | unsigned long *wordebuf; |
182ec4ee | 318 | |
10934478 AB |
319 | ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen, |
320 | &ebuf, NULL); | |
321 | if (ret != -EOPNOTSUPP) { | |
fab2c399 | 322 | if (ret) { |
9c261b33 | 323 | jffs2_dbg(1, "MTD point failed %d\n", ret); |
fab2c399 JT |
324 | goto do_flash_read; |
325 | } | |
326 | if (retlen < c->sector_size) { | |
327 | /* Don't muck about if it won't let us point to the whole erase sector */ | |
9c261b33 JP |
328 | jffs2_dbg(1, "MTD point returned len too short: 0x%zx\n", |
329 | retlen); | |
7219778a | 330 | mtd_unpoint(c->mtd, jeb->offset, retlen); |
fab2c399 JT |
331 | goto do_flash_read; |
332 | } | |
333 | wordebuf = ebuf-sizeof(*wordebuf); | |
334 | retlen /= sizeof(*wordebuf); | |
335 | do { | |
336 | if (*++wordebuf != ~0) | |
337 | break; | |
338 | } while(--retlen); | |
7219778a | 339 | mtd_unpoint(c->mtd, jeb->offset, c->sector_size); |
8a0f5723 | 340 | if (retlen) { |
da320f05 JP |
341 | pr_warn("Newly-erased block contained word 0x%lx at offset 0x%08tx\n", |
342 | *wordebuf, | |
343 | jeb->offset + | |
344 | c->sector_size-retlen * sizeof(*wordebuf)); | |
8a0f5723 AG |
345 | return -EIO; |
346 | } | |
fab2c399 JT |
347 | return 0; |
348 | } | |
349 | do_flash_read: | |
1da177e4 LT |
350 | ebuf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
351 | if (!ebuf) { | |
da320f05 JP |
352 | pr_warn("Failed to allocate page buffer for verifying erase at 0x%08x. Refiling\n", |
353 | jeb->offset); | |
5d157885 TG |
354 | return -EAGAIN; |
355 | } | |
1da177e4 | 356 | |
9c261b33 | 357 | jffs2_dbg(1, "Verifying erase at 0x%08x\n", jeb->offset); |
1da177e4 | 358 | |
5d157885 TG |
359 | for (ofs = jeb->offset; ofs < jeb->offset + c->sector_size; ) { |
360 | uint32_t readlen = min((uint32_t)PAGE_SIZE, jeb->offset + c->sector_size - ofs); | |
361 | int i; | |
1da177e4 | 362 | |
5d157885 | 363 | *bad_offset = ofs; |
894214d1 | 364 | |
329ad399 | 365 | ret = mtd_read(c->mtd, ofs, readlen, &retlen, ebuf); |
5d157885 | 366 | if (ret) { |
da320f05 JP |
367 | pr_warn("Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", |
368 | ofs, ret); | |
8a0f5723 | 369 | ret = -EIO; |
5d157885 TG |
370 | goto fail; |
371 | } | |
372 | if (retlen != readlen) { | |
da320f05 JP |
373 | pr_warn("Short read from newly-erased block at 0x%08x. Wanted %d, got %zd\n", |
374 | ofs, readlen, retlen); | |
8a0f5723 | 375 | ret = -EIO; |
5d157885 TG |
376 | goto fail; |
377 | } | |
378 | for (i=0; i<readlen; i += sizeof(unsigned long)) { | |
379 | /* It's OK. We know it's properly aligned */ | |
380 | unsigned long *datum = ebuf + i; | |
381 | if (*datum + 1) { | |
382 | *bad_offset += i; | |
da320f05 JP |
383 | pr_warn("Newly-erased block contained word 0x%lx at offset 0x%08x\n", |
384 | *datum, *bad_offset); | |
8a0f5723 | 385 | ret = -EIO; |
5d157885 | 386 | goto fail; |
1da177e4 | 387 | } |
1da177e4 | 388 | } |
5d157885 TG |
389 | ofs += readlen; |
390 | cond_resched(); | |
1da177e4 | 391 | } |
5d157885 TG |
392 | ret = 0; |
393 | fail: | |
394 | kfree(ebuf); | |
395 | return ret; | |
396 | } | |
1da177e4 | 397 | |
5d157885 TG |
398 | static void jffs2_mark_erased_block(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb) |
399 | { | |
5d157885 TG |
400 | size_t retlen; |
401 | int ret; | |
3f649ab7 | 402 | uint32_t bad_offset; |
5d157885 TG |
403 | |
404 | switch (jffs2_block_check_erase(c, jeb, &bad_offset)) { | |
405 | case -EAGAIN: goto refile; | |
406 | case -EIO: goto filebad; | |
407 | } | |
1da177e4 | 408 | |
182ec4ee | 409 | /* Write the erase complete marker */ |
9c261b33 | 410 | jffs2_dbg(1, "Writing erased marker to block at 0x%08x\n", jeb->offset); |
5d157885 | 411 | bad_offset = jeb->offset; |
1da177e4 | 412 | |
5d157885 TG |
413 | /* Cleanmarker in oob area or no cleanmarker at all ? */ |
414 | if (jffs2_cleanmarker_oob(c) || c->cleanmarker_size == 0) { | |
1da177e4 | 415 | |
5d157885 TG |
416 | if (jffs2_cleanmarker_oob(c)) { |
417 | if (jffs2_write_nand_cleanmarker(c, jeb)) | |
418 | goto filebad; | |
419 | } | |
1da177e4 | 420 | } else { |
5d157885 | 421 | |
1da177e4 LT |
422 | struct kvec vecs[1]; |
423 | struct jffs2_unknown_node marker = { | |
424 | .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK), | |
425 | .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), | |
426 | .totlen = cpu_to_je32(c->cleanmarker_size) | |
427 | }; | |
428 | ||
046b8b98 | 429 | jffs2_prealloc_raw_node_refs(c, jeb, 1); |
5d157885 | 430 | |
1da177e4 LT |
431 | marker.hdr_crc = cpu_to_je32(crc32(0, &marker, sizeof(struct jffs2_unknown_node)-4)); |
432 | ||
433 | vecs[0].iov_base = (unsigned char *) ▮ | |
434 | vecs[0].iov_len = sizeof(marker); | |
435 | ret = jffs2_flash_direct_writev(c, vecs, 1, jeb->offset, &retlen); | |
182ec4ee | 436 | |
5d157885 TG |
437 | if (ret || retlen != sizeof(marker)) { |
438 | if (ret) | |
da320f05 | 439 | pr_warn("Write clean marker to block at 0x%08x failed: %d\n", |
5d157885 TG |
440 | jeb->offset, ret); |
441 | else | |
da320f05 | 442 | pr_warn("Short write to newly-erased block at 0x%08x: Wanted %zd, got %zd\n", |
5d157885 TG |
443 | jeb->offset, sizeof(marker), retlen); |
444 | ||
5d157885 | 445 | goto filebad; |
1da177e4 | 446 | } |
1da177e4 | 447 | } |
014b164e DW |
448 | /* Everything else got zeroed before the erase */ |
449 | jeb->free_size = c->sector_size; | |
1da177e4 | 450 | |
ced22070 | 451 | mutex_lock(&c->erase_free_sem); |
1da177e4 | 452 | spin_lock(&c->erase_completion_lock); |
014b164e | 453 | |
1da177e4 | 454 | c->erasing_size -= c->sector_size; |
014b164e DW |
455 | c->free_size += c->sector_size; |
456 | ||
457 | /* Account for cleanmarker now, if it's in-band */ | |
458 | if (c->cleanmarker_size && !jffs2_cleanmarker_oob(c)) | |
459 | jffs2_link_node_ref(c, jeb, jeb->offset | REF_NORMAL, c->cleanmarker_size, NULL); | |
1da177e4 | 460 | |
e2bc322b | 461 | list_move_tail(&jeb->list, &c->free_list); |
1da177e4 LT |
462 | c->nr_erasing_blocks--; |
463 | c->nr_free_blocks++; | |
85a62db6 DW |
464 | |
465 | jffs2_dbg_acct_sanity_check_nolock(c, jeb); | |
466 | jffs2_dbg_acct_paranoia_check_nolock(c, jeb); | |
467 | ||
1da177e4 | 468 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 469 | mutex_unlock(&c->erase_free_sem); |
1da177e4 | 470 | wake_up(&c->erase_wait); |
5d157885 TG |
471 | return; |
472 | ||
473 | filebad: | |
5d157885 TG |
474 | jffs2_erase_failed(c, jeb, bad_offset); |
475 | return; | |
1da177e4 | 476 | |
5d157885 TG |
477 | refile: |
478 | /* Stick it back on the list from whence it came and come back later */ | |
ced22070 | 479 | mutex_lock(&c->erase_free_sem); |
5d157885 | 480 | spin_lock(&c->erase_completion_lock); |
ae3b6ba0 | 481 | jffs2_garbage_collect_trigger(c); |
e2bc322b | 482 | list_move(&jeb->list, &c->erase_complete_list); |
5d157885 | 483 | spin_unlock(&c->erase_completion_lock); |
ced22070 | 484 | mutex_unlock(&c->erase_free_sem); |
5d157885 TG |
485 | return; |
486 | } |