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TOMOYO Linux Cross Reference
Linux/fs/hfsplus/extents.c

Version: ~ [ linux-5.4-rc3 ] ~ [ linux-5.3.6 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.79 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.149 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.196 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.196 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.75 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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>
 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 */
 19 int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1,
 20                         const hfsplus_btree_key *k2)
 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 int __hfsplus_ext_write_extent(struct inode *inode,
 87                 struct hfs_find_data *fd)
 88 {
 89         struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
 90         int res;
 91 
 92         WARN_ON(!mutex_is_locked(&hip->extents_lock));
 93 
 94         hfsplus_ext_build_key(fd->search_key, inode->i_ino, hip->cached_start,
 95                               HFSPLUS_IS_RSRC(inode) ?
 96                                 HFSPLUS_TYPE_RSRC : HFSPLUS_TYPE_DATA);
 97 
 98         res = hfs_brec_find(fd, hfs_find_rec_by_key);
 99         if (hip->extent_state & HFSPLUS_EXT_NEW) {
100                 if (res != -ENOENT)
101                         return res;
102                 hfs_brec_insert(fd, hip->cached_extents,
103                                 sizeof(hfsplus_extent_rec));
104                 hip->extent_state &= ~(HFSPLUS_EXT_DIRTY | HFSPLUS_EXT_NEW);
105         } else {
106                 if (res)
107                         return res;
108                 hfs_bnode_write(fd->bnode, hip->cached_extents,
109                                 fd->entryoffset, fd->entrylength);
110                 hip->extent_state &= ~HFSPLUS_EXT_DIRTY;
111         }
112 
113         /*
114          * We can't just use hfsplus_mark_inode_dirty here, because we
115          * also get called from hfsplus_write_inode, which should not
116          * redirty the inode.  Instead the callers have to be careful
117          * to explicily mark the inode dirty, too.
118          */
119         set_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags);
120 
121         return 0;
122 }
123 
124 static int hfsplus_ext_write_extent_locked(struct inode *inode)
125 {
126         int res = 0;
127 
128         if (HFSPLUS_I(inode)->extent_state & HFSPLUS_EXT_DIRTY) {
129                 struct hfs_find_data fd;
130 
131                 res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->ext_tree, &fd);
132                 if (res)
133                         return res;
134                 res = __hfsplus_ext_write_extent(inode, &fd);
135                 hfs_find_exit(&fd);
136         }
137         return res;
138 }
139 
140 int hfsplus_ext_write_extent(struct inode *inode)
141 {
142         int res;
143 
144         mutex_lock(&HFSPLUS_I(inode)->extents_lock);
145         res = hfsplus_ext_write_extent_locked(inode);
146         mutex_unlock(&HFSPLUS_I(inode)->extents_lock);
147 
148         return res;
149 }
150 
151 static inline int __hfsplus_ext_read_extent(struct hfs_find_data *fd,
152                                             struct hfsplus_extent *extent,
153                                             u32 cnid, u32 block, u8 type)
154 {
155         int res;
156 
157         hfsplus_ext_build_key(fd->search_key, cnid, block, type);
158         fd->key->ext.cnid = 0;
159         res = hfs_brec_find(fd, hfs_find_rec_by_key);
160         if (res && res != -ENOENT)
161                 return res;
162         if (fd->key->ext.cnid != fd->search_key->ext.cnid ||
163             fd->key->ext.fork_type != fd->search_key->ext.fork_type)
164                 return -ENOENT;
165         if (fd->entrylength != sizeof(hfsplus_extent_rec))
166                 return -EIO;
167         hfs_bnode_read(fd->bnode, extent, fd->entryoffset,
168                 sizeof(hfsplus_extent_rec));
169         return 0;
170 }
171 
172 static inline int __hfsplus_ext_cache_extent(struct hfs_find_data *fd,
173                 struct inode *inode, u32 block)
174 {
175         struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
176         int res;
177 
178         WARN_ON(!mutex_is_locked(&hip->extents_lock));
179 
180         if (hip->extent_state & HFSPLUS_EXT_DIRTY) {
181                 res = __hfsplus_ext_write_extent(inode, fd);
182                 if (res)
183                         return res;
184         }
185 
186         res = __hfsplus_ext_read_extent(fd, hip->cached_extents, inode->i_ino,
187                                         block, HFSPLUS_IS_RSRC(inode) ?
188                                                 HFSPLUS_TYPE_RSRC :
189                                                 HFSPLUS_TYPE_DATA);
190         if (!res) {
191                 hip->cached_start = be32_to_cpu(fd->key->ext.start_block);
192                 hip->cached_blocks =
193                         hfsplus_ext_block_count(hip->cached_extents);
194         } else {
195                 hip->cached_start = hip->cached_blocks = 0;
196                 hip->extent_state &= ~(HFSPLUS_EXT_DIRTY | HFSPLUS_EXT_NEW);
197         }
198         return res;
199 }
200 
201 static int hfsplus_ext_read_extent(struct inode *inode, u32 block)
202 {
203         struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
204         struct hfs_find_data fd;
205         int res;
206 
207         if (block >= hip->cached_start &&
208             block < hip->cached_start + hip->cached_blocks)
209                 return 0;
210 
211         res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->ext_tree, &fd);
212         if (!res) {
213                 res = __hfsplus_ext_cache_extent(&fd, inode, block);
214                 hfs_find_exit(&fd);
215         }
216         return res;
217 }
218 
219 /* Get a block at iblock for inode, possibly allocating if create */
220 int hfsplus_get_block(struct inode *inode, sector_t iblock,
221                       struct buffer_head *bh_result, int create)
222 {
223         struct super_block *sb = inode->i_sb;
224         struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
225         struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
226         int res = -EIO;
227         u32 ablock, dblock, mask;
228         sector_t sector;
229         int was_dirty = 0;
230         int shift;
231 
232         /* Convert inode block to disk allocation block */
233         shift = sbi->alloc_blksz_shift - sb->s_blocksize_bits;
234         ablock = iblock >> sbi->fs_shift;
235 
236         if (iblock >= hip->fs_blocks) {
237                 if (iblock > hip->fs_blocks || !create)
238                         return -EIO;
239                 if (ablock >= hip->alloc_blocks) {
240                         res = hfsplus_file_extend(inode);
241                         if (res)
242                                 return res;
243                 }
244         } else
245                 create = 0;
246 
247         if (ablock < hip->first_blocks) {
248                 dblock = hfsplus_ext_find_block(hip->first_extents, ablock);
249                 goto done;
250         }
251 
252         if (inode->i_ino == HFSPLUS_EXT_CNID)
253                 return -EIO;
254 
255         mutex_lock(&hip->extents_lock);
256 
257         /*
258          * hfsplus_ext_read_extent will write out a cached extent into
259          * the extents btree.  In that case we may have to mark the inode
260          * dirty even for a pure read of an extent here.
261          */
262         was_dirty = (hip->extent_state & HFSPLUS_EXT_DIRTY);
263         res = hfsplus_ext_read_extent(inode, ablock);
264         if (res) {
265                 mutex_unlock(&hip->extents_lock);
266                 return -EIO;
267         }
268         dblock = hfsplus_ext_find_block(hip->cached_extents,
269                                         ablock - hip->cached_start);
270         mutex_unlock(&hip->extents_lock);
271 
272 done:
273         hfs_dbg(EXTENT, "get_block(%lu): %llu - %u\n",
274                 inode->i_ino, (long long)iblock, dblock);
275 
276         mask = (1 << sbi->fs_shift) - 1;
277         sector = ((sector_t)dblock << sbi->fs_shift) +
278                   sbi->blockoffset + (iblock & mask);
279         map_bh(bh_result, sb, sector);
280 
281         if (create) {
282                 set_buffer_new(bh_result);
283                 hip->phys_size += sb->s_blocksize;
284                 hip->fs_blocks++;
285                 inode_add_bytes(inode, sb->s_blocksize);
286         }
287         if (create || was_dirty)
288                 mark_inode_dirty(inode);
289         return 0;
290 }
291 
292 static void hfsplus_dump_extent(struct hfsplus_extent *extent)
293 {
294         int i;
295 
296         hfs_dbg(EXTENT, "   ");
297         for (i = 0; i < 8; i++)
298                 hfs_dbg_cont(EXTENT, " %u:%u",
299                              be32_to_cpu(extent[i].start_block),
300                              be32_to_cpu(extent[i].block_count));
301         hfs_dbg_cont(EXTENT, "\n");
302 }
303 
304 static int hfsplus_add_extent(struct hfsplus_extent *extent, u32 offset,
305                               u32 alloc_block, u32 block_count)
306 {
307         u32 count, start;
308         int i;
309 
310         hfsplus_dump_extent(extent);
311         for (i = 0; i < 8; extent++, i++) {
312                 count = be32_to_cpu(extent->block_count);
313                 if (offset == count) {
314                         start = be32_to_cpu(extent->start_block);
315                         if (alloc_block != start + count) {
316                                 if (++i >= 8)
317                                         return -ENOSPC;
318                                 extent++;
319                                 extent->start_block = cpu_to_be32(alloc_block);
320                         } else
321                                 block_count += count;
322                         extent->block_count = cpu_to_be32(block_count);
323                         return 0;
324                 } else if (offset < count)
325                         break;
326                 offset -= count;
327         }
328         /* panic? */
329         return -EIO;
330 }
331 
332 static int hfsplus_free_extents(struct super_block *sb,
333                                 struct hfsplus_extent *extent,
334                                 u32 offset, u32 block_nr)
335 {
336         u32 count, start;
337         int i;
338         int err = 0;
339 
340         hfsplus_dump_extent(extent);
341         for (i = 0; i < 8; extent++, i++) {
342                 count = be32_to_cpu(extent->block_count);
343                 if (offset == count)
344                         goto found;
345                 else if (offset < count)
346                         break;
347                 offset -= count;
348         }
349         /* panic? */
350         return -EIO;
351 found:
352         for (;;) {
353                 start = be32_to_cpu(extent->start_block);
354                 if (count <= block_nr) {
355                         err = hfsplus_block_free(sb, start, count);
356                         if (err) {
357                                 pr_err("can't free extent\n");
358                                 hfs_dbg(EXTENT, " start: %u count: %u\n",
359                                         start, count);
360                         }
361                         extent->block_count = 0;
362                         extent->start_block = 0;
363                         block_nr -= count;
364                 } else {
365                         count -= block_nr;
366                         err = hfsplus_block_free(sb, start + count, block_nr);
367                         if (err) {
368                                 pr_err("can't free extent\n");
369                                 hfs_dbg(EXTENT, " start: %u count: %u\n",
370                                         start, count);
371                         }
372                         extent->block_count = cpu_to_be32(count);
373                         block_nr = 0;
374                 }
375                 if (!block_nr || !i) {
376                         /*
377                          * Try to free all extents and
378                          * return only last error
379                          */
380                         return err;
381                 }
382                 i--;
383                 extent--;
384                 count = be32_to_cpu(extent->block_count);
385         }
386 }
387 
388 int hfsplus_free_fork(struct super_block *sb, u32 cnid,
389                 struct hfsplus_fork_raw *fork, int type)
390 {
391         struct hfs_find_data fd;
392         hfsplus_extent_rec ext_entry;
393         u32 total_blocks, blocks, start;
394         int res, i;
395 
396         total_blocks = be32_to_cpu(fork->total_blocks);
397         if (!total_blocks)
398                 return 0;
399 
400         blocks = 0;
401         for (i = 0; i < 8; i++)
402                 blocks += be32_to_cpu(fork->extents[i].block_count);
403 
404         res = hfsplus_free_extents(sb, fork->extents, blocks, blocks);
405         if (res)
406                 return res;
407         if (total_blocks == blocks)
408                 return 0;
409 
410         res = hfs_find_init(HFSPLUS_SB(sb)->ext_tree, &fd);
411         if (res)
412                 return res;
413         do {
414                 res = __hfsplus_ext_read_extent(&fd, ext_entry, cnid,
415                                                 total_blocks, type);
416                 if (res)
417                         break;
418                 start = be32_to_cpu(fd.key->ext.start_block);
419                 hfsplus_free_extents(sb, ext_entry,
420                                      total_blocks - start,
421                                      total_blocks);
422                 hfs_brec_remove(&fd);
423                 total_blocks = start;
424         } while (total_blocks > blocks);
425         hfs_find_exit(&fd);
426 
427         return res;
428 }
429 
430 int hfsplus_file_extend(struct inode *inode)
431 {
432         struct super_block *sb = inode->i_sb;
433         struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
434         struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
435         u32 start, len, goal;
436         int res;
437 
438         if (sbi->alloc_file->i_size * 8 <
439             sbi->total_blocks - sbi->free_blocks + 8) {
440                 /* extend alloc file */
441                 pr_err("extend alloc file! "
442                                 "(%llu,%u,%u)\n",
443                         sbi->alloc_file->i_size * 8,
444                         sbi->total_blocks, sbi->free_blocks);
445                 return -ENOSPC;
446         }
447 
448         mutex_lock(&hip->extents_lock);
449         if (hip->alloc_blocks == hip->first_blocks)
450                 goal = hfsplus_ext_lastblock(hip->first_extents);
451         else {
452                 res = hfsplus_ext_read_extent(inode, hip->alloc_blocks);
453                 if (res)
454                         goto out;
455                 goal = hfsplus_ext_lastblock(hip->cached_extents);
456         }
457 
458         len = hip->clump_blocks;
459         start = hfsplus_block_allocate(sb, sbi->total_blocks, goal, &len);
460         if (start >= sbi->total_blocks) {
461                 start = hfsplus_block_allocate(sb, goal, 0, &len);
462                 if (start >= goal) {
463                         res = -ENOSPC;
464                         goto out;
465                 }
466         }
467 
468         hfs_dbg(EXTENT, "extend %lu: %u,%u\n", inode->i_ino, start, len);
469 
470         if (hip->alloc_blocks <= hip->first_blocks) {
471                 if (!hip->first_blocks) {
472                         hfs_dbg(EXTENT, "first extents\n");
473                         /* no extents yet */
474                         hip->first_extents[0].start_block = cpu_to_be32(start);
475                         hip->first_extents[0].block_count = cpu_to_be32(len);
476                         res = 0;
477                 } else {
478                         /* try to append to extents in inode */
479                         res = hfsplus_add_extent(hip->first_extents,
480                                                  hip->alloc_blocks,
481                                                  start, len);
482                         if (res == -ENOSPC)
483                                 goto insert_extent;
484                 }
485                 if (!res) {
486                         hfsplus_dump_extent(hip->first_extents);
487                         hip->first_blocks += len;
488                 }
489         } else {
490                 res = hfsplus_add_extent(hip->cached_extents,
491                                          hip->alloc_blocks - hip->cached_start,
492                                          start, len);
493                 if (!res) {
494                         hfsplus_dump_extent(hip->cached_extents);
495                         hip->extent_state |= HFSPLUS_EXT_DIRTY;
496                         hip->cached_blocks += len;
497                 } else if (res == -ENOSPC)
498                         goto insert_extent;
499         }
500 out:
501         mutex_unlock(&hip->extents_lock);
502         if (!res) {
503                 hip->alloc_blocks += len;
504                 hfsplus_mark_inode_dirty(inode, HFSPLUS_I_ALLOC_DIRTY);
505         }
506         return res;
507 
508 insert_extent:
509         hfs_dbg(EXTENT, "insert new extent\n");
510         res = hfsplus_ext_write_extent_locked(inode);
511         if (res)
512                 goto out;
513 
514         memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec));
515         hip->cached_extents[0].start_block = cpu_to_be32(start);
516         hip->cached_extents[0].block_count = cpu_to_be32(len);
517         hfsplus_dump_extent(hip->cached_extents);
518         hip->extent_state |= HFSPLUS_EXT_DIRTY | HFSPLUS_EXT_NEW;
519         hip->cached_start = hip->alloc_blocks;
520         hip->cached_blocks = len;
521 
522         res = 0;
523         goto out;
524 }
525 
526 void hfsplus_file_truncate(struct inode *inode)
527 {
528         struct super_block *sb = inode->i_sb;
529         struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
530         struct hfs_find_data fd;
531         u32 alloc_cnt, blk_cnt, start;
532         int res;
533 
534         hfs_dbg(INODE, "truncate: %lu, %llu -> %llu\n",
535                 inode->i_ino, (long long)hip->phys_size, inode->i_size);
536 
537         if (inode->i_size > hip->phys_size) {
538                 struct address_space *mapping = inode->i_mapping;
539                 struct page *page;
540                 void *fsdata;
541                 loff_t size = inode->i_size;
542 
543                 res = pagecache_write_begin(NULL, mapping, size, 0,
544                                                 AOP_FLAG_UNINTERRUPTIBLE,
545                                                 &page, &fsdata);
546                 if (res)
547                         return;
548                 res = pagecache_write_end(NULL, mapping, size,
549                         0, 0, page, fsdata);
550                 if (res < 0)
551                         return;
552                 mark_inode_dirty(inode);
553                 return;
554         } else if (inode->i_size == hip->phys_size)
555                 return;
556 
557         blk_cnt = (inode->i_size + HFSPLUS_SB(sb)->alloc_blksz - 1) >>
558                         HFSPLUS_SB(sb)->alloc_blksz_shift;
559         alloc_cnt = hip->alloc_blocks;
560         if (blk_cnt == alloc_cnt)
561                 goto out;
562 
563         mutex_lock(&hip->extents_lock);
564         res = hfs_find_init(HFSPLUS_SB(sb)->ext_tree, &fd);
565         if (res) {
566                 mutex_unlock(&hip->extents_lock);
567                 /* XXX: We lack error handling of hfsplus_file_truncate() */
568                 return;
569         }
570         while (1) {
571                 if (alloc_cnt == hip->first_blocks) {
572                         hfsplus_free_extents(sb, hip->first_extents,
573                                              alloc_cnt, alloc_cnt - blk_cnt);
574                         hfsplus_dump_extent(hip->first_extents);
575                         hip->first_blocks = blk_cnt;
576                         break;
577                 }
578                 res = __hfsplus_ext_cache_extent(&fd, inode, alloc_cnt);
579                 if (res)
580                         break;
581                 start = hip->cached_start;
582                 hfsplus_free_extents(sb, hip->cached_extents,
583                                      alloc_cnt - start, alloc_cnt - blk_cnt);
584                 hfsplus_dump_extent(hip->cached_extents);
585                 if (blk_cnt > start) {
586                         hip->extent_state |= HFSPLUS_EXT_DIRTY;
587                         break;
588                 }
589                 alloc_cnt = start;
590                 hip->cached_start = hip->cached_blocks = 0;
591                 hip->extent_state &= ~(HFSPLUS_EXT_DIRTY | HFSPLUS_EXT_NEW);
592                 hfs_brec_remove(&fd);
593         }
594         hfs_find_exit(&fd);
595         mutex_unlock(&hip->extents_lock);
596 
597         hip->alloc_blocks = blk_cnt;
598 out:
599         hip->phys_size = inode->i_size;
600         hip->fs_blocks = (inode->i_size + sb->s_blocksize - 1) >>
601                 sb->s_blocksize_bits;
602         inode_set_bytes(inode, hip->fs_blocks << sb->s_blocksize_bits);
603         hfsplus_mark_inode_dirty(inode, HFSPLUS_I_ALLOC_DIRTY);
604 }
605 

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