sendfile: remove .sendfile from filesystems that use generic_file_sendfile()
[linux-3.10.git] / fs / hfs / inode.c
1 /*
2  *  linux/fs/hfs/inode.c
3  *
4  * Copyright (C) 1995-1997  Paul H. Hargrove
5  * (C) 2003 Ardis Technologies <roman@ardistech.com>
6  * This file may be distributed under the terms of the GNU General Public License.
7  *
8  * This file contains inode-related functions which do not depend on
9  * which scheme is being used to represent forks.
10  *
11  * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
12  */
13
14 #include <linux/pagemap.h>
15 #include <linux/mpage.h>
16 #include <linux/sched.h>
17
18 #include "hfs_fs.h"
19 #include "btree.h"
20
21 static const struct file_operations hfs_file_operations;
22 static const struct inode_operations hfs_file_inode_operations;
23
24 /*================ Variable-like macros ================*/
25
26 #define HFS_VALID_MODE_BITS  (S_IFREG | S_IFDIR | S_IRWXUGO)
27
28 static int hfs_writepage(struct page *page, struct writeback_control *wbc)
29 {
30         return block_write_full_page(page, hfs_get_block, wbc);
31 }
32
33 static int hfs_readpage(struct file *file, struct page *page)
34 {
35         return block_read_full_page(page, hfs_get_block);
36 }
37
38 static int hfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
39 {
40         return cont_prepare_write(page, from, to, hfs_get_block,
41                                   &HFS_I(page->mapping->host)->phys_size);
42 }
43
44 static sector_t hfs_bmap(struct address_space *mapping, sector_t block)
45 {
46         return generic_block_bmap(mapping, block, hfs_get_block);
47 }
48
49 static int hfs_releasepage(struct page *page, gfp_t mask)
50 {
51         struct inode *inode = page->mapping->host;
52         struct super_block *sb = inode->i_sb;
53         struct hfs_btree *tree;
54         struct hfs_bnode *node;
55         u32 nidx;
56         int i, res = 1;
57
58         switch (inode->i_ino) {
59         case HFS_EXT_CNID:
60                 tree = HFS_SB(sb)->ext_tree;
61                 break;
62         case HFS_CAT_CNID:
63                 tree = HFS_SB(sb)->cat_tree;
64                 break;
65         default:
66                 BUG();
67                 return 0;
68         }
69         if (tree->node_size >= PAGE_CACHE_SIZE) {
70                 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
71                 spin_lock(&tree->hash_lock);
72                 node = hfs_bnode_findhash(tree, nidx);
73                 if (!node)
74                         ;
75                 else if (atomic_read(&node->refcnt))
76                         res = 0;
77                 if (res && node) {
78                         hfs_bnode_unhash(node);
79                         hfs_bnode_free(node);
80                 }
81                 spin_unlock(&tree->hash_lock);
82         } else {
83                 nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
84                 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
85                 spin_lock(&tree->hash_lock);
86                 do {
87                         node = hfs_bnode_findhash(tree, nidx++);
88                         if (!node)
89                                 continue;
90                         if (atomic_read(&node->refcnt)) {
91                                 res = 0;
92                                 break;
93                         }
94                         hfs_bnode_unhash(node);
95                         hfs_bnode_free(node);
96                 } while (--i && nidx < tree->node_count);
97                 spin_unlock(&tree->hash_lock);
98         }
99         return res ? try_to_free_buffers(page) : 0;
100 }
101
102 static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
103                 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
104 {
105         struct file *file = iocb->ki_filp;
106         struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
107
108         return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
109                                   offset, nr_segs, hfs_get_block, NULL);
110 }
111
112 static int hfs_writepages(struct address_space *mapping,
113                           struct writeback_control *wbc)
114 {
115         return mpage_writepages(mapping, wbc, hfs_get_block);
116 }
117
118 const struct address_space_operations hfs_btree_aops = {
119         .readpage       = hfs_readpage,
120         .writepage      = hfs_writepage,
121         .sync_page      = block_sync_page,
122         .prepare_write  = hfs_prepare_write,
123         .commit_write   = generic_commit_write,
124         .bmap           = hfs_bmap,
125         .releasepage    = hfs_releasepage,
126 };
127
128 const struct address_space_operations hfs_aops = {
129         .readpage       = hfs_readpage,
130         .writepage      = hfs_writepage,
131         .sync_page      = block_sync_page,
132         .prepare_write  = hfs_prepare_write,
133         .commit_write   = generic_commit_write,
134         .bmap           = hfs_bmap,
135         .direct_IO      = hfs_direct_IO,
136         .writepages     = hfs_writepages,
137 };
138
139 /*
140  * hfs_new_inode
141  */
142 struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
143 {
144         struct super_block *sb = dir->i_sb;
145         struct inode *inode = new_inode(sb);
146         if (!inode)
147                 return NULL;
148
149         init_MUTEX(&HFS_I(inode)->extents_lock);
150         INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
151         hfs_cat_build_key(sb, (btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name);
152         inode->i_ino = HFS_SB(sb)->next_id++;
153         inode->i_mode = mode;
154         inode->i_uid = current->fsuid;
155         inode->i_gid = current->fsgid;
156         inode->i_nlink = 1;
157         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
158         HFS_I(inode)->flags = 0;
159         HFS_I(inode)->rsrc_inode = NULL;
160         HFS_I(inode)->fs_blocks = 0;
161         if (S_ISDIR(mode)) {
162                 inode->i_size = 2;
163                 HFS_SB(sb)->folder_count++;
164                 if (dir->i_ino == HFS_ROOT_CNID)
165                         HFS_SB(sb)->root_dirs++;
166                 inode->i_op = &hfs_dir_inode_operations;
167                 inode->i_fop = &hfs_dir_operations;
168                 inode->i_mode |= S_IRWXUGO;
169                 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask;
170         } else if (S_ISREG(mode)) {
171                 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
172                 HFS_SB(sb)->file_count++;
173                 if (dir->i_ino == HFS_ROOT_CNID)
174                         HFS_SB(sb)->root_files++;
175                 inode->i_op = &hfs_file_inode_operations;
176                 inode->i_fop = &hfs_file_operations;
177                 inode->i_mapping->a_ops = &hfs_aops;
178                 inode->i_mode |= S_IRUGO|S_IXUGO;
179                 if (mode & S_IWUSR)
180                         inode->i_mode |= S_IWUGO;
181                 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_file_umask;
182                 HFS_I(inode)->phys_size = 0;
183                 HFS_I(inode)->alloc_blocks = 0;
184                 HFS_I(inode)->first_blocks = 0;
185                 HFS_I(inode)->cached_start = 0;
186                 HFS_I(inode)->cached_blocks = 0;
187                 memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec));
188                 memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
189         }
190         insert_inode_hash(inode);
191         mark_inode_dirty(inode);
192         set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
193         sb->s_dirt = 1;
194
195         return inode;
196 }
197
198 void hfs_delete_inode(struct inode *inode)
199 {
200         struct super_block *sb = inode->i_sb;
201
202         dprint(DBG_INODE, "delete_inode: %lu\n", inode->i_ino);
203         if (S_ISDIR(inode->i_mode)) {
204                 HFS_SB(sb)->folder_count--;
205                 if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
206                         HFS_SB(sb)->root_dirs--;
207                 set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
208                 sb->s_dirt = 1;
209                 return;
210         }
211         HFS_SB(sb)->file_count--;
212         if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
213                 HFS_SB(sb)->root_files--;
214         if (S_ISREG(inode->i_mode)) {
215                 if (!inode->i_nlink) {
216                         inode->i_size = 0;
217                         hfs_file_truncate(inode);
218                 }
219         }
220         set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
221         sb->s_dirt = 1;
222 }
223
224 void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
225                          __be32 __log_size, __be32 phys_size, u32 clump_size)
226 {
227         struct super_block *sb = inode->i_sb;
228         u32 log_size = be32_to_cpu(__log_size);
229         u16 count;
230         int i;
231
232         memcpy(HFS_I(inode)->first_extents, ext, sizeof(hfs_extent_rec));
233         for (count = 0, i = 0; i < 3; i++)
234                 count += be16_to_cpu(ext[i].count);
235         HFS_I(inode)->first_blocks = count;
236
237         inode->i_size = HFS_I(inode)->phys_size = log_size;
238         HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
239         inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
240         HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) /
241                                      HFS_SB(sb)->alloc_blksz;
242         HFS_I(inode)->clump_blocks = clump_size / HFS_SB(sb)->alloc_blksz;
243         if (!HFS_I(inode)->clump_blocks)
244                 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
245 }
246
247 struct hfs_iget_data {
248         struct hfs_cat_key *key;
249         hfs_cat_rec *rec;
250 };
251
252 static int hfs_test_inode(struct inode *inode, void *data)
253 {
254         struct hfs_iget_data *idata = data;
255         hfs_cat_rec *rec;
256
257         rec = idata->rec;
258         switch (rec->type) {
259         case HFS_CDR_DIR:
260                 return inode->i_ino == be32_to_cpu(rec->dir.DirID);
261         case HFS_CDR_FIL:
262                 return inode->i_ino == be32_to_cpu(rec->file.FlNum);
263         default:
264                 BUG();
265                 return 1;
266         }
267 }
268
269 /*
270  * hfs_read_inode
271  */
272 static int hfs_read_inode(struct inode *inode, void *data)
273 {
274         struct hfs_iget_data *idata = data;
275         struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
276         hfs_cat_rec *rec;
277
278         HFS_I(inode)->flags = 0;
279         HFS_I(inode)->rsrc_inode = NULL;
280         init_MUTEX(&HFS_I(inode)->extents_lock);
281         INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
282
283         /* Initialize the inode */
284         inode->i_uid = hsb->s_uid;
285         inode->i_gid = hsb->s_gid;
286         inode->i_nlink = 1;
287
288         if (idata->key)
289                 HFS_I(inode)->cat_key = *idata->key;
290         else
291                 HFS_I(inode)->flags |= HFS_FLG_RSRC;
292         HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60;
293
294         rec = idata->rec;
295         switch (rec->type) {
296         case HFS_CDR_FIL:
297                 if (!HFS_IS_RSRC(inode)) {
298                         hfs_inode_read_fork(inode, rec->file.ExtRec, rec->file.LgLen,
299                                             rec->file.PyLen, be16_to_cpu(rec->file.ClpSize));
300                 } else {
301                         hfs_inode_read_fork(inode, rec->file.RExtRec, rec->file.RLgLen,
302                                             rec->file.RPyLen, be16_to_cpu(rec->file.ClpSize));
303                 }
304
305                 inode->i_ino = be32_to_cpu(rec->file.FlNum);
306                 inode->i_mode = S_IRUGO | S_IXUGO;
307                 if (!(rec->file.Flags & HFS_FIL_LOCK))
308                         inode->i_mode |= S_IWUGO;
309                 inode->i_mode &= ~hsb->s_file_umask;
310                 inode->i_mode |= S_IFREG;
311                 inode->i_ctime = inode->i_atime = inode->i_mtime =
312                                 hfs_m_to_utime(rec->file.MdDat);
313                 inode->i_op = &hfs_file_inode_operations;
314                 inode->i_fop = &hfs_file_operations;
315                 inode->i_mapping->a_ops = &hfs_aops;
316                 break;
317         case HFS_CDR_DIR:
318                 inode->i_ino = be32_to_cpu(rec->dir.DirID);
319                 inode->i_size = be16_to_cpu(rec->dir.Val) + 2;
320                 HFS_I(inode)->fs_blocks = 0;
321                 inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
322                 inode->i_ctime = inode->i_atime = inode->i_mtime =
323                                 hfs_m_to_utime(rec->dir.MdDat);
324                 inode->i_op = &hfs_dir_inode_operations;
325                 inode->i_fop = &hfs_dir_operations;
326                 break;
327         default:
328                 make_bad_inode(inode);
329         }
330         return 0;
331 }
332
333 /*
334  * __hfs_iget()
335  *
336  * Given the MDB for a HFS filesystem, a 'key' and an 'entry' in
337  * the catalog B-tree and the 'type' of the desired file return the
338  * inode for that file/directory or NULL.  Note that 'type' indicates
339  * whether we want the actual file or directory, or the corresponding
340  * metadata (AppleDouble header file or CAP metadata file).
341  */
342 struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_rec *rec)
343 {
344         struct hfs_iget_data data = { key, rec };
345         struct inode *inode;
346         u32 cnid;
347
348         switch (rec->type) {
349         case HFS_CDR_DIR:
350                 cnid = be32_to_cpu(rec->dir.DirID);
351                 break;
352         case HFS_CDR_FIL:
353                 cnid = be32_to_cpu(rec->file.FlNum);
354                 break;
355         default:
356                 return NULL;
357         }
358         inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data);
359         if (inode && (inode->i_state & I_NEW))
360                 unlock_new_inode(inode);
361         return inode;
362 }
363
364 void hfs_inode_write_fork(struct inode *inode, struct hfs_extent *ext,
365                           __be32 *log_size, __be32 *phys_size)
366 {
367         memcpy(ext, HFS_I(inode)->first_extents, sizeof(hfs_extent_rec));
368
369         if (log_size)
370                 *log_size = cpu_to_be32(inode->i_size);
371         if (phys_size)
372                 *phys_size = cpu_to_be32(HFS_I(inode)->alloc_blocks *
373                                          HFS_SB(inode->i_sb)->alloc_blksz);
374 }
375
376 int hfs_write_inode(struct inode *inode, int unused)
377 {
378         struct inode *main_inode = inode;
379         struct hfs_find_data fd;
380         hfs_cat_rec rec;
381
382         dprint(DBG_INODE, "hfs_write_inode: %lu\n", inode->i_ino);
383         hfs_ext_write_extent(inode);
384
385         if (inode->i_ino < HFS_FIRSTUSER_CNID) {
386                 switch (inode->i_ino) {
387                 case HFS_ROOT_CNID:
388                         break;
389                 case HFS_EXT_CNID:
390                         hfs_btree_write(HFS_SB(inode->i_sb)->ext_tree);
391                         return 0;
392                 case HFS_CAT_CNID:
393                         hfs_btree_write(HFS_SB(inode->i_sb)->cat_tree);
394                         return 0;
395                 default:
396                         BUG();
397                         return -EIO;
398                 }
399         }
400
401         if (HFS_IS_RSRC(inode))
402                 main_inode = HFS_I(inode)->rsrc_inode;
403
404         if (!main_inode->i_nlink)
405                 return 0;
406
407         if (hfs_find_init(HFS_SB(main_inode->i_sb)->cat_tree, &fd))
408                 /* panic? */
409                 return -EIO;
410
411         fd.search_key->cat = HFS_I(main_inode)->cat_key;
412         if (hfs_brec_find(&fd))
413                 /* panic? */
414                 goto out;
415
416         if (S_ISDIR(main_inode->i_mode)) {
417                 if (fd.entrylength < sizeof(struct hfs_cat_dir))
418                         /* panic? */;
419                 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
420                            sizeof(struct hfs_cat_dir));
421                 if (rec.type != HFS_CDR_DIR ||
422                     be32_to_cpu(rec.dir.DirID) != inode->i_ino) {
423                 }
424
425                 rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime);
426                 rec.dir.Val = cpu_to_be16(inode->i_size - 2);
427
428                 hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
429                             sizeof(struct hfs_cat_dir));
430         } else if (HFS_IS_RSRC(inode)) {
431                 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
432                                sizeof(struct hfs_cat_file));
433                 hfs_inode_write_fork(inode, rec.file.RExtRec,
434                                      &rec.file.RLgLen, &rec.file.RPyLen);
435                 hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
436                                 sizeof(struct hfs_cat_file));
437         } else {
438                 if (fd.entrylength < sizeof(struct hfs_cat_file))
439                         /* panic? */;
440                 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
441                            sizeof(struct hfs_cat_file));
442                 if (rec.type != HFS_CDR_FIL ||
443                     be32_to_cpu(rec.file.FlNum) != inode->i_ino) {
444                 }
445
446                 if (inode->i_mode & S_IWUSR)
447                         rec.file.Flags &= ~HFS_FIL_LOCK;
448                 else
449                         rec.file.Flags |= HFS_FIL_LOCK;
450                 hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen);
451                 rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime);
452
453                 hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
454                             sizeof(struct hfs_cat_file));
455         }
456 out:
457         hfs_find_exit(&fd);
458         return 0;
459 }
460
461 static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
462                                       struct nameidata *nd)
463 {
464         struct inode *inode = NULL;
465         hfs_cat_rec rec;
466         struct hfs_find_data fd;
467         int res;
468
469         if (HFS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
470                 goto out;
471
472         inode = HFS_I(dir)->rsrc_inode;
473         if (inode)
474                 goto out;
475
476         inode = new_inode(dir->i_sb);
477         if (!inode)
478                 return ERR_PTR(-ENOMEM);
479
480         hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
481         fd.search_key->cat = HFS_I(dir)->cat_key;
482         res = hfs_brec_read(&fd, &rec, sizeof(rec));
483         if (!res) {
484                 struct hfs_iget_data idata = { NULL, &rec };
485                 hfs_read_inode(inode, &idata);
486         }
487         hfs_find_exit(&fd);
488         if (res) {
489                 iput(inode);
490                 return ERR_PTR(res);
491         }
492         HFS_I(inode)->rsrc_inode = dir;
493         HFS_I(dir)->rsrc_inode = inode;
494         igrab(dir);
495         hlist_add_head(&inode->i_hash, &HFS_SB(dir->i_sb)->rsrc_inodes);
496         mark_inode_dirty(inode);
497 out:
498         d_add(dentry, inode);
499         return NULL;
500 }
501
502 void hfs_clear_inode(struct inode *inode)
503 {
504         if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
505                 HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
506                 iput(HFS_I(inode)->rsrc_inode);
507         }
508 }
509
510 static int hfs_permission(struct inode *inode, int mask,
511                           struct nameidata *nd)
512 {
513         if (S_ISREG(inode->i_mode) && mask & MAY_EXEC)
514                 return 0;
515         return generic_permission(inode, mask, NULL);
516 }
517
518 static int hfs_file_open(struct inode *inode, struct file *file)
519 {
520         if (HFS_IS_RSRC(inode))
521                 inode = HFS_I(inode)->rsrc_inode;
522         if (atomic_read(&file->f_count) != 1)
523                 return 0;
524         atomic_inc(&HFS_I(inode)->opencnt);
525         return 0;
526 }
527
528 static int hfs_file_release(struct inode *inode, struct file *file)
529 {
530         //struct super_block *sb = inode->i_sb;
531
532         if (HFS_IS_RSRC(inode))
533                 inode = HFS_I(inode)->rsrc_inode;
534         if (atomic_read(&file->f_count) != 0)
535                 return 0;
536         if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
537                 mutex_lock(&inode->i_mutex);
538                 hfs_file_truncate(inode);
539                 //if (inode->i_flags & S_DEAD) {
540                 //      hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
541                 //      hfs_delete_inode(inode);
542                 //}
543                 mutex_unlock(&inode->i_mutex);
544         }
545         return 0;
546 }
547
548 /*
549  * hfs_notify_change()
550  *
551  * Based very closely on fs/msdos/inode.c by Werner Almesberger
552  *
553  * This is the notify_change() field in the super_operations structure
554  * for HFS file systems.  The purpose is to take that changes made to
555  * an inode and apply then in a filesystem-dependent manner.  In this
556  * case the process has a few of tasks to do:
557  *  1) prevent changes to the i_uid and i_gid fields.
558  *  2) map file permissions to the closest allowable permissions
559  *  3) Since multiple Linux files can share the same on-disk inode under
560  *     HFS (for instance the data and resource forks of a file) a change
561  *     to permissions must be applied to all other in-core inodes which
562  *     correspond to the same HFS file.
563  */
564
565 int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
566 {
567         struct inode *inode = dentry->d_inode;
568         struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
569         int error;
570
571         error = inode_change_ok(inode, attr); /* basic permission checks */
572         if (error)
573                 return error;
574
575         /* no uig/gid changes and limit which mode bits can be set */
576         if (((attr->ia_valid & ATTR_UID) &&
577              (attr->ia_uid != hsb->s_uid)) ||
578             ((attr->ia_valid & ATTR_GID) &&
579              (attr->ia_gid != hsb->s_gid)) ||
580             ((attr->ia_valid & ATTR_MODE) &&
581              ((S_ISDIR(inode->i_mode) &&
582                (attr->ia_mode != inode->i_mode)) ||
583               (attr->ia_mode & ~HFS_VALID_MODE_BITS)))) {
584                 return hsb->s_quiet ? 0 : error;
585         }
586
587         if (attr->ia_valid & ATTR_MODE) {
588                 /* Only the 'w' bits can ever change and only all together. */
589                 if (attr->ia_mode & S_IWUSR)
590                         attr->ia_mode = inode->i_mode | S_IWUGO;
591                 else
592                         attr->ia_mode = inode->i_mode & ~S_IWUGO;
593                 attr->ia_mode &= S_ISDIR(inode->i_mode) ? ~hsb->s_dir_umask: ~hsb->s_file_umask;
594         }
595         error = inode_setattr(inode, attr);
596         if (error)
597                 return error;
598
599         return 0;
600 }
601
602
603 static const struct file_operations hfs_file_operations = {
604         .llseek         = generic_file_llseek,
605         .read           = do_sync_read,
606         .aio_read       = generic_file_aio_read,
607         .write          = do_sync_write,
608         .aio_write      = generic_file_aio_write,
609         .mmap           = generic_file_mmap,
610         .splice_read    = generic_file_splice_read,
611         .fsync          = file_fsync,
612         .open           = hfs_file_open,
613         .release        = hfs_file_release,
614 };
615
616 static const struct inode_operations hfs_file_inode_operations = {
617         .lookup         = hfs_file_lookup,
618         .truncate       = hfs_file_truncate,
619         .setattr        = hfs_inode_setattr,
620         .permission     = hfs_permission,
621         .setxattr       = hfs_setxattr,
622         .getxattr       = hfs_getxattr,
623         .listxattr      = hfs_listxattr,
624 };