Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * linux/fs/hfsplus/extents.c | |
3 | * | |
4 | * Copyright (C) 2001 | |
5 | * Brad Boyer (flar@allandria.com) | |
6 | * (C) 2003 Ardis Technologies <roman@ardistech.com> | |
7 | * | |
8 | * Handling of Extents both in catalog and extents overflow trees | |
9 | */ | |
10 | ||
11 | #include <linux/errno.h> | |
12 | #include <linux/fs.h> | |
13 | #include <linux/pagemap.h> | |
1da177e4 LT |
14 | |
15 | #include "hfsplus_fs.h" | |
16 | #include "hfsplus_raw.h" | |
17 | ||
18 | /* Compare two extents keys, returns 0 on same, pos/neg for difference */ | |
2179d372 DE |
19 | int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1, |
20 | const hfsplus_btree_key *k2) | |
1da177e4 LT |
21 | { |
22 | __be32 k1id, k2id; | |
23 | __be32 k1s, k2s; | |
24 | ||
25 | k1id = k1->ext.cnid; | |
26 | k2id = k2->ext.cnid; | |
27 | if (k1id != k2id) | |
28 | return be32_to_cpu(k1id) < be32_to_cpu(k2id) ? -1 : 1; | |
29 | ||
30 | if (k1->ext.fork_type != k2->ext.fork_type) | |
31 | return k1->ext.fork_type < k2->ext.fork_type ? -1 : 1; | |
32 | ||
33 | k1s = k1->ext.start_block; | |
34 | k2s = k2->ext.start_block; | |
35 | if (k1s == k2s) | |
36 | return 0; | |
37 | return be32_to_cpu(k1s) < be32_to_cpu(k2s) ? -1 : 1; | |
38 | } | |
39 | ||
40 | static void hfsplus_ext_build_key(hfsplus_btree_key *key, u32 cnid, | |
41 | u32 block, u8 type) | |
42 | { | |
43 | key->key_len = cpu_to_be16(HFSPLUS_EXT_KEYLEN - 2); | |
44 | key->ext.cnid = cpu_to_be32(cnid); | |
45 | key->ext.start_block = cpu_to_be32(block); | |
46 | key->ext.fork_type = type; | |
47 | key->ext.pad = 0; | |
48 | } | |
49 | ||
50 | static u32 hfsplus_ext_find_block(struct hfsplus_extent *ext, u32 off) | |
51 | { | |
52 | int i; | |
53 | u32 count; | |
54 | ||
55 | for (i = 0; i < 8; ext++, i++) { | |
56 | count = be32_to_cpu(ext->block_count); | |
57 | if (off < count) | |
58 | return be32_to_cpu(ext->start_block) + off; | |
59 | off -= count; | |
60 | } | |
61 | /* panic? */ | |
62 | return 0; | |
63 | } | |
64 | ||
65 | static int hfsplus_ext_block_count(struct hfsplus_extent *ext) | |
66 | { | |
67 | int i; | |
68 | u32 count = 0; | |
69 | ||
70 | for (i = 0; i < 8; ext++, i++) | |
71 | count += be32_to_cpu(ext->block_count); | |
72 | return count; | |
73 | } | |
74 | ||
75 | static u32 hfsplus_ext_lastblock(struct hfsplus_extent *ext) | |
76 | { | |
77 | int i; | |
78 | ||
79 | ext += 7; | |
80 | for (i = 0; i < 7; ext--, i++) | |
81 | if (ext->block_count) | |
82 | break; | |
83 | return be32_to_cpu(ext->start_block) + be32_to_cpu(ext->block_count); | |
84 | } | |
85 | ||
86 | static void __hfsplus_ext_write_extent(struct inode *inode, struct hfs_find_data *fd) | |
87 | { | |
88 | int res; | |
89 | ||
90 | hfsplus_ext_build_key(fd->search_key, inode->i_ino, HFSPLUS_I(inode).cached_start, | |
91 | HFSPLUS_IS_RSRC(inode) ? HFSPLUS_TYPE_RSRC : HFSPLUS_TYPE_DATA); | |
92 | res = hfs_brec_find(fd); | |
93 | if (HFSPLUS_I(inode).flags & HFSPLUS_FLG_EXT_NEW) { | |
94 | if (res != -ENOENT) | |
95 | return; | |
96 | hfs_brec_insert(fd, HFSPLUS_I(inode).cached_extents, sizeof(hfsplus_extent_rec)); | |
97 | HFSPLUS_I(inode).flags &= ~(HFSPLUS_FLG_EXT_DIRTY | HFSPLUS_FLG_EXT_NEW); | |
98 | } else { | |
99 | if (res) | |
100 | return; | |
101 | hfs_bnode_write(fd->bnode, HFSPLUS_I(inode).cached_extents, fd->entryoffset, fd->entrylength); | |
102 | HFSPLUS_I(inode).flags &= ~HFSPLUS_FLG_EXT_DIRTY; | |
103 | } | |
104 | } | |
105 | ||
106 | void hfsplus_ext_write_extent(struct inode *inode) | |
107 | { | |
108 | if (HFSPLUS_I(inode).flags & HFSPLUS_FLG_EXT_DIRTY) { | |
109 | struct hfs_find_data fd; | |
110 | ||
111 | hfs_find_init(HFSPLUS_SB(inode->i_sb).ext_tree, &fd); | |
112 | __hfsplus_ext_write_extent(inode, &fd); | |
113 | hfs_find_exit(&fd); | |
114 | } | |
115 | } | |
116 | ||
117 | static inline int __hfsplus_ext_read_extent(struct hfs_find_data *fd, | |
118 | struct hfsplus_extent *extent, | |
119 | u32 cnid, u32 block, u8 type) | |
120 | { | |
121 | int res; | |
122 | ||
123 | hfsplus_ext_build_key(fd->search_key, cnid, block, type); | |
124 | fd->key->ext.cnid = 0; | |
125 | res = hfs_brec_find(fd); | |
126 | if (res && res != -ENOENT) | |
127 | return res; | |
128 | if (fd->key->ext.cnid != fd->search_key->ext.cnid || | |
129 | fd->key->ext.fork_type != fd->search_key->ext.fork_type) | |
130 | return -ENOENT; | |
131 | if (fd->entrylength != sizeof(hfsplus_extent_rec)) | |
132 | return -EIO; | |
133 | hfs_bnode_read(fd->bnode, extent, fd->entryoffset, sizeof(hfsplus_extent_rec)); | |
134 | return 0; | |
135 | } | |
136 | ||
137 | static inline int __hfsplus_ext_cache_extent(struct hfs_find_data *fd, struct inode *inode, u32 block) | |
138 | { | |
139 | int res; | |
140 | ||
141 | if (HFSPLUS_I(inode).flags & HFSPLUS_FLG_EXT_DIRTY) | |
142 | __hfsplus_ext_write_extent(inode, fd); | |
143 | ||
144 | res = __hfsplus_ext_read_extent(fd, HFSPLUS_I(inode).cached_extents, inode->i_ino, | |
145 | block, HFSPLUS_IS_RSRC(inode) ? HFSPLUS_TYPE_RSRC : HFSPLUS_TYPE_DATA); | |
146 | if (!res) { | |
147 | HFSPLUS_I(inode).cached_start = be32_to_cpu(fd->key->ext.start_block); | |
148 | HFSPLUS_I(inode).cached_blocks = hfsplus_ext_block_count(HFSPLUS_I(inode).cached_extents); | |
149 | } else { | |
150 | HFSPLUS_I(inode).cached_start = HFSPLUS_I(inode).cached_blocks = 0; | |
151 | HFSPLUS_I(inode).flags &= ~(HFSPLUS_FLG_EXT_DIRTY | HFSPLUS_FLG_EXT_NEW); | |
152 | } | |
153 | return res; | |
154 | } | |
155 | ||
156 | static int hfsplus_ext_read_extent(struct inode *inode, u32 block) | |
157 | { | |
158 | struct hfs_find_data fd; | |
159 | int res; | |
160 | ||
161 | if (block >= HFSPLUS_I(inode).cached_start && | |
162 | block < HFSPLUS_I(inode).cached_start + HFSPLUS_I(inode).cached_blocks) | |
163 | return 0; | |
164 | ||
165 | hfs_find_init(HFSPLUS_SB(inode->i_sb).ext_tree, &fd); | |
166 | res = __hfsplus_ext_cache_extent(&fd, inode, block); | |
167 | hfs_find_exit(&fd); | |
168 | return res; | |
169 | } | |
170 | ||
171 | /* Get a block at iblock for inode, possibly allocating if create */ | |
172 | int hfsplus_get_block(struct inode *inode, sector_t iblock, | |
173 | struct buffer_head *bh_result, int create) | |
174 | { | |
175 | struct super_block *sb; | |
176 | int res = -EIO; | |
177 | u32 ablock, dblock, mask; | |
178 | int shift; | |
179 | ||
180 | sb = inode->i_sb; | |
181 | ||
182 | /* Convert inode block to disk allocation block */ | |
183 | shift = HFSPLUS_SB(sb).alloc_blksz_shift - sb->s_blocksize_bits; | |
184 | ablock = iblock >> HFSPLUS_SB(sb).fs_shift; | |
185 | ||
186 | if (iblock >= HFSPLUS_I(inode).fs_blocks) { | |
187 | if (iblock > HFSPLUS_I(inode).fs_blocks || !create) | |
188 | return -EIO; | |
189 | if (ablock >= HFSPLUS_I(inode).alloc_blocks) { | |
190 | res = hfsplus_file_extend(inode); | |
191 | if (res) | |
192 | return res; | |
193 | } | |
194 | } else | |
195 | create = 0; | |
196 | ||
197 | if (ablock < HFSPLUS_I(inode).first_blocks) { | |
198 | dblock = hfsplus_ext_find_block(HFSPLUS_I(inode).first_extents, ablock); | |
199 | goto done; | |
200 | } | |
201 | ||
248736c2 ES |
202 | if (inode->i_ino == HFSPLUS_EXT_CNID) |
203 | return -EIO; | |
204 | ||
895c23f8 | 205 | mutex_lock(&HFSPLUS_I(inode).extents_lock); |
1da177e4 LT |
206 | res = hfsplus_ext_read_extent(inode, ablock); |
207 | if (!res) { | |
208 | dblock = hfsplus_ext_find_block(HFSPLUS_I(inode).cached_extents, ablock - | |
209 | HFSPLUS_I(inode).cached_start); | |
210 | } else { | |
895c23f8 | 211 | mutex_unlock(&HFSPLUS_I(inode).extents_lock); |
1da177e4 LT |
212 | return -EIO; |
213 | } | |
895c23f8 | 214 | mutex_unlock(&HFSPLUS_I(inode).extents_lock); |
1da177e4 LT |
215 | |
216 | done: | |
217 | dprint(DBG_EXTENT, "get_block(%lu): %llu - %u\n", inode->i_ino, (long long)iblock, dblock); | |
218 | mask = (1 << HFSPLUS_SB(sb).fs_shift) - 1; | |
219 | map_bh(bh_result, sb, (dblock << HFSPLUS_SB(sb).fs_shift) + HFSPLUS_SB(sb).blockoffset + (iblock & mask)); | |
220 | if (create) { | |
221 | set_buffer_new(bh_result); | |
222 | HFSPLUS_I(inode).phys_size += sb->s_blocksize; | |
223 | HFSPLUS_I(inode).fs_blocks++; | |
224 | inode_add_bytes(inode, sb->s_blocksize); | |
225 | mark_inode_dirty(inode); | |
226 | } | |
227 | return 0; | |
228 | } | |
229 | ||
230 | static void hfsplus_dump_extent(struct hfsplus_extent *extent) | |
231 | { | |
232 | int i; | |
233 | ||
234 | dprint(DBG_EXTENT, " "); | |
235 | for (i = 0; i < 8; i++) | |
236 | dprint(DBG_EXTENT, " %u:%u", be32_to_cpu(extent[i].start_block), | |
237 | be32_to_cpu(extent[i].block_count)); | |
238 | dprint(DBG_EXTENT, "\n"); | |
239 | } | |
240 | ||
241 | static int hfsplus_add_extent(struct hfsplus_extent *extent, u32 offset, | |
242 | u32 alloc_block, u32 block_count) | |
243 | { | |
244 | u32 count, start; | |
245 | int i; | |
246 | ||
247 | hfsplus_dump_extent(extent); | |
248 | for (i = 0; i < 8; extent++, i++) { | |
249 | count = be32_to_cpu(extent->block_count); | |
250 | if (offset == count) { | |
251 | start = be32_to_cpu(extent->start_block); | |
252 | if (alloc_block != start + count) { | |
253 | if (++i >= 8) | |
254 | return -ENOSPC; | |
255 | extent++; | |
256 | extent->start_block = cpu_to_be32(alloc_block); | |
257 | } else | |
258 | block_count += count; | |
259 | extent->block_count = cpu_to_be32(block_count); | |
260 | return 0; | |
261 | } else if (offset < count) | |
262 | break; | |
263 | offset -= count; | |
264 | } | |
265 | /* panic? */ | |
266 | return -EIO; | |
267 | } | |
268 | ||
269 | static int hfsplus_free_extents(struct super_block *sb, | |
270 | struct hfsplus_extent *extent, | |
271 | u32 offset, u32 block_nr) | |
272 | { | |
273 | u32 count, start; | |
274 | int i; | |
275 | ||
276 | hfsplus_dump_extent(extent); | |
277 | for (i = 0; i < 8; extent++, i++) { | |
278 | count = be32_to_cpu(extent->block_count); | |
279 | if (offset == count) | |
280 | goto found; | |
281 | else if (offset < count) | |
282 | break; | |
283 | offset -= count; | |
284 | } | |
285 | /* panic? */ | |
286 | return -EIO; | |
287 | found: | |
288 | for (;;) { | |
289 | start = be32_to_cpu(extent->start_block); | |
290 | if (count <= block_nr) { | |
291 | hfsplus_block_free(sb, start, count); | |
292 | extent->block_count = 0; | |
293 | extent->start_block = 0; | |
294 | block_nr -= count; | |
295 | } else { | |
296 | count -= block_nr; | |
297 | hfsplus_block_free(sb, start + count, block_nr); | |
298 | extent->block_count = cpu_to_be32(count); | |
299 | block_nr = 0; | |
300 | } | |
301 | if (!block_nr || !i) | |
302 | return 0; | |
303 | i--; | |
304 | extent--; | |
305 | count = be32_to_cpu(extent->block_count); | |
306 | } | |
307 | } | |
308 | ||
309 | int hfsplus_free_fork(struct super_block *sb, u32 cnid, struct hfsplus_fork_raw *fork, int type) | |
310 | { | |
311 | struct hfs_find_data fd; | |
312 | hfsplus_extent_rec ext_entry; | |
313 | u32 total_blocks, blocks, start; | |
314 | int res, i; | |
315 | ||
316 | total_blocks = be32_to_cpu(fork->total_blocks); | |
317 | if (!total_blocks) | |
318 | return 0; | |
319 | ||
320 | blocks = 0; | |
321 | for (i = 0; i < 8; i++) | |
322 | blocks += be32_to_cpu(fork->extents[i].block_count); | |
323 | ||
324 | res = hfsplus_free_extents(sb, fork->extents, blocks, blocks); | |
325 | if (res) | |
326 | return res; | |
327 | if (total_blocks == blocks) | |
328 | return 0; | |
329 | ||
330 | hfs_find_init(HFSPLUS_SB(sb).ext_tree, &fd); | |
331 | do { | |
332 | res = __hfsplus_ext_read_extent(&fd, ext_entry, cnid, | |
333 | total_blocks, type); | |
334 | if (res) | |
335 | break; | |
336 | start = be32_to_cpu(fd.key->ext.start_block); | |
337 | hfsplus_free_extents(sb, ext_entry, | |
338 | total_blocks - start, | |
339 | total_blocks); | |
340 | hfs_brec_remove(&fd); | |
341 | total_blocks = start; | |
342 | } while (total_blocks > blocks); | |
343 | hfs_find_exit(&fd); | |
344 | ||
345 | return res; | |
346 | } | |
347 | ||
348 | int hfsplus_file_extend(struct inode *inode) | |
349 | { | |
350 | struct super_block *sb = inode->i_sb; | |
351 | u32 start, len, goal; | |
352 | int res; | |
353 | ||
354 | if (HFSPLUS_SB(sb).alloc_file->i_size * 8 < HFSPLUS_SB(sb).total_blocks - HFSPLUS_SB(sb).free_blocks + 8) { | |
355 | // extend alloc file | |
634725a9 | 356 | printk(KERN_ERR "hfs: extend alloc file! (%Lu,%u,%u)\n", HFSPLUS_SB(sb).alloc_file->i_size * 8, |
1da177e4 LT |
357 | HFSPLUS_SB(sb).total_blocks, HFSPLUS_SB(sb).free_blocks); |
358 | return -ENOSPC; | |
1da177e4 LT |
359 | } |
360 | ||
895c23f8 | 361 | mutex_lock(&HFSPLUS_I(inode).extents_lock); |
1da177e4 LT |
362 | if (HFSPLUS_I(inode).alloc_blocks == HFSPLUS_I(inode).first_blocks) |
363 | goal = hfsplus_ext_lastblock(HFSPLUS_I(inode).first_extents); | |
364 | else { | |
365 | res = hfsplus_ext_read_extent(inode, HFSPLUS_I(inode).alloc_blocks); | |
366 | if (res) | |
367 | goto out; | |
368 | goal = hfsplus_ext_lastblock(HFSPLUS_I(inode).cached_extents); | |
369 | } | |
370 | ||
371 | len = HFSPLUS_I(inode).clump_blocks; | |
372 | start = hfsplus_block_allocate(sb, HFSPLUS_SB(sb).total_blocks, goal, &len); | |
373 | if (start >= HFSPLUS_SB(sb).total_blocks) { | |
374 | start = hfsplus_block_allocate(sb, goal, 0, &len); | |
375 | if (start >= goal) { | |
376 | res = -ENOSPC; | |
377 | goto out; | |
378 | } | |
379 | } | |
380 | ||
381 | dprint(DBG_EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len); | |
382 | if (HFSPLUS_I(inode).alloc_blocks <= HFSPLUS_I(inode).first_blocks) { | |
383 | if (!HFSPLUS_I(inode).first_blocks) { | |
384 | dprint(DBG_EXTENT, "first extents\n"); | |
385 | /* no extents yet */ | |
386 | HFSPLUS_I(inode).first_extents[0].start_block = cpu_to_be32(start); | |
387 | HFSPLUS_I(inode).first_extents[0].block_count = cpu_to_be32(len); | |
388 | res = 0; | |
389 | } else { | |
390 | /* try to append to extents in inode */ | |
391 | res = hfsplus_add_extent(HFSPLUS_I(inode).first_extents, | |
392 | HFSPLUS_I(inode).alloc_blocks, | |
393 | start, len); | |
394 | if (res == -ENOSPC) | |
395 | goto insert_extent; | |
396 | } | |
397 | if (!res) { | |
398 | hfsplus_dump_extent(HFSPLUS_I(inode).first_extents); | |
399 | HFSPLUS_I(inode).first_blocks += len; | |
400 | } | |
401 | } else { | |
402 | res = hfsplus_add_extent(HFSPLUS_I(inode).cached_extents, | |
403 | HFSPLUS_I(inode).alloc_blocks - | |
404 | HFSPLUS_I(inode).cached_start, | |
405 | start, len); | |
406 | if (!res) { | |
407 | hfsplus_dump_extent(HFSPLUS_I(inode).cached_extents); | |
408 | HFSPLUS_I(inode).flags |= HFSPLUS_FLG_EXT_DIRTY; | |
409 | HFSPLUS_I(inode).cached_blocks += len; | |
410 | } else if (res == -ENOSPC) | |
411 | goto insert_extent; | |
412 | } | |
413 | out: | |
895c23f8 | 414 | mutex_unlock(&HFSPLUS_I(inode).extents_lock); |
1da177e4 LT |
415 | if (!res) { |
416 | HFSPLUS_I(inode).alloc_blocks += len; | |
417 | mark_inode_dirty(inode); | |
418 | } | |
419 | return res; | |
420 | ||
421 | insert_extent: | |
422 | dprint(DBG_EXTENT, "insert new extent\n"); | |
423 | hfsplus_ext_write_extent(inode); | |
424 | ||
425 | memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec)); | |
426 | HFSPLUS_I(inode).cached_extents[0].start_block = cpu_to_be32(start); | |
427 | HFSPLUS_I(inode).cached_extents[0].block_count = cpu_to_be32(len); | |
428 | hfsplus_dump_extent(HFSPLUS_I(inode).cached_extents); | |
429 | HFSPLUS_I(inode).flags |= HFSPLUS_FLG_EXT_DIRTY | HFSPLUS_FLG_EXT_NEW; | |
430 | HFSPLUS_I(inode).cached_start = HFSPLUS_I(inode).alloc_blocks; | |
431 | HFSPLUS_I(inode).cached_blocks = len; | |
432 | ||
433 | res = 0; | |
434 | goto out; | |
435 | } | |
436 | ||
437 | void hfsplus_file_truncate(struct inode *inode) | |
438 | { | |
439 | struct super_block *sb = inode->i_sb; | |
440 | struct hfs_find_data fd; | |
441 | u32 alloc_cnt, blk_cnt, start; | |
442 | int res; | |
443 | ||
444 | dprint(DBG_INODE, "truncate: %lu, %Lu -> %Lu\n", inode->i_ino, | |
445 | (long long)HFSPLUS_I(inode).phys_size, inode->i_size); | |
446 | if (inode->i_size > HFSPLUS_I(inode).phys_size) { | |
447 | struct address_space *mapping = inode->i_mapping; | |
448 | struct page *page; | |
7c0efc62 NP |
449 | void *fsdata; |
450 | u32 size = inode->i_size; | |
1da177e4 LT |
451 | int res; |
452 | ||
7c0efc62 NP |
453 | res = pagecache_write_begin(NULL, mapping, size, 0, |
454 | AOP_FLAG_UNINTERRUPTIBLE, | |
455 | &page, &fsdata); | |
1da177e4 | 456 | if (res) |
7c0efc62 NP |
457 | return; |
458 | res = pagecache_write_end(NULL, mapping, size, 0, 0, page, fsdata); | |
459 | if (res < 0) | |
460 | return; | |
1da177e4 LT |
461 | mark_inode_dirty(inode); |
462 | return; | |
f76d28d2 RZ |
463 | } else if (inode->i_size == HFSPLUS_I(inode).phys_size) |
464 | return; | |
465 | ||
1da177e4 LT |
466 | blk_cnt = (inode->i_size + HFSPLUS_SB(sb).alloc_blksz - 1) >> HFSPLUS_SB(sb).alloc_blksz_shift; |
467 | alloc_cnt = HFSPLUS_I(inode).alloc_blocks; | |
468 | if (blk_cnt == alloc_cnt) | |
469 | goto out; | |
470 | ||
895c23f8 | 471 | mutex_lock(&HFSPLUS_I(inode).extents_lock); |
1da177e4 LT |
472 | hfs_find_init(HFSPLUS_SB(sb).ext_tree, &fd); |
473 | while (1) { | |
474 | if (alloc_cnt == HFSPLUS_I(inode).first_blocks) { | |
475 | hfsplus_free_extents(sb, HFSPLUS_I(inode).first_extents, | |
476 | alloc_cnt, alloc_cnt - blk_cnt); | |
477 | hfsplus_dump_extent(HFSPLUS_I(inode).first_extents); | |
478 | HFSPLUS_I(inode).first_blocks = blk_cnt; | |
479 | break; | |
480 | } | |
481 | res = __hfsplus_ext_cache_extent(&fd, inode, alloc_cnt); | |
482 | if (res) | |
483 | break; | |
484 | start = HFSPLUS_I(inode).cached_start; | |
485 | hfsplus_free_extents(sb, HFSPLUS_I(inode).cached_extents, | |
486 | alloc_cnt - start, alloc_cnt - blk_cnt); | |
487 | hfsplus_dump_extent(HFSPLUS_I(inode).cached_extents); | |
488 | if (blk_cnt > start) { | |
489 | HFSPLUS_I(inode).flags |= HFSPLUS_FLG_EXT_DIRTY; | |
490 | break; | |
491 | } | |
492 | alloc_cnt = start; | |
493 | HFSPLUS_I(inode).cached_start = HFSPLUS_I(inode).cached_blocks = 0; | |
494 | HFSPLUS_I(inode).flags &= ~(HFSPLUS_FLG_EXT_DIRTY | HFSPLUS_FLG_EXT_NEW); | |
495 | hfs_brec_remove(&fd); | |
496 | } | |
497 | hfs_find_exit(&fd); | |
895c23f8 | 498 | mutex_unlock(&HFSPLUS_I(inode).extents_lock); |
1da177e4 LT |
499 | |
500 | HFSPLUS_I(inode).alloc_blocks = blk_cnt; | |
501 | out: | |
502 | HFSPLUS_I(inode).phys_size = inode->i_size; | |
503 | HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; | |
504 | inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits); | |
505 | mark_inode_dirty(inode); | |
506 | } |