xref: /openbmc/linux/fs/hfsplus/inode.c (revision d5cb9783536a41df9f9cba5b0a1d78047ed787f7)
1 /*
2  *  linux/fs/hfsplus/inode.c
3  *
4  * Copyright (C) 2001
5  * Brad Boyer (flar@allandria.com)
6  * (C) 2003 Ardis Technologies <roman@ardistech.com>
7  *
8  * Inode handling routines
9  */
10 
11 #include <linux/mm.h>
12 #include <linux/fs.h>
13 #include <linux/pagemap.h>
14 #include <linux/version.h>
15 #include <linux/mpage.h>
16 
17 #include "hfsplus_fs.h"
18 #include "hfsplus_raw.h"
19 
20 static int hfsplus_readpage(struct file *file, struct page *page)
21 {
22 	//printk("readpage: %lu\n", page->index);
23 	return block_read_full_page(page, hfsplus_get_block);
24 }
25 
26 static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
27 {
28 	//printk("writepage: %lu\n", page->index);
29 	return block_write_full_page(page, hfsplus_get_block, wbc);
30 }
31 
32 static int hfsplus_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
33 {
34 	return cont_prepare_write(page, from, to, hfsplus_get_block,
35 		&HFSPLUS_I(page->mapping->host).phys_size);
36 }
37 
38 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
39 {
40 	return generic_block_bmap(mapping, block, hfsplus_get_block);
41 }
42 
43 static int hfsplus_releasepage(struct page *page, gfp_t mask)
44 {
45 	struct inode *inode = page->mapping->host;
46 	struct super_block *sb = inode->i_sb;
47 	struct hfs_btree *tree;
48 	struct hfs_bnode *node;
49 	u32 nidx;
50 	int i, res = 1;
51 
52 	switch (inode->i_ino) {
53 	case HFSPLUS_EXT_CNID:
54 		tree = HFSPLUS_SB(sb).ext_tree;
55 		break;
56 	case HFSPLUS_CAT_CNID:
57 		tree = HFSPLUS_SB(sb).cat_tree;
58 		break;
59 	case HFSPLUS_ATTR_CNID:
60 		tree = HFSPLUS_SB(sb).attr_tree;
61 		break;
62 	default:
63 		BUG();
64 		return 0;
65 	}
66 	if (tree->node_size >= PAGE_CACHE_SIZE) {
67 		nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
68 		spin_lock(&tree->hash_lock);
69 		node = hfs_bnode_findhash(tree, nidx);
70 		if (!node)
71 			;
72 		else if (atomic_read(&node->refcnt))
73 			res = 0;
74 		if (res && node) {
75 			hfs_bnode_unhash(node);
76 			hfs_bnode_free(node);
77 		}
78 		spin_unlock(&tree->hash_lock);
79 	} else {
80 		nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
81 		i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
82 		spin_lock(&tree->hash_lock);
83 		do {
84 			node = hfs_bnode_findhash(tree, nidx++);
85 			if (!node)
86 				continue;
87 			if (atomic_read(&node->refcnt)) {
88 				res = 0;
89 				break;
90 			}
91 			hfs_bnode_unhash(node);
92 			hfs_bnode_free(node);
93 		} while (--i && nidx < tree->node_count);
94 		spin_unlock(&tree->hash_lock);
95 	}
96 	//printk("releasepage: %lu,%x = %d\n", page->index, mask, res);
97 	return res ? try_to_free_buffers(page) : 0;
98 }
99 
100 static int hfsplus_get_blocks(struct inode *inode, sector_t iblock, unsigned long max_blocks,
101 			      struct buffer_head *bh_result, int create)
102 {
103 	int ret;
104 
105 	ret = hfsplus_get_block(inode, iblock, bh_result, create);
106 	if (!ret)
107 		bh_result->b_size = (1 << inode->i_blkbits);
108 	return ret;
109 }
110 
111 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
112 		const struct iovec *iov, loff_t offset, unsigned long nr_segs)
113 {
114 	struct file *file = iocb->ki_filp;
115 	struct inode *inode = file->f_dentry->d_inode->i_mapping->host;
116 
117 	return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
118 				  offset, nr_segs, hfsplus_get_blocks, NULL);
119 }
120 
121 static int hfsplus_writepages(struct address_space *mapping,
122 			      struct writeback_control *wbc)
123 {
124 	return mpage_writepages(mapping, wbc, hfsplus_get_block);
125 }
126 
127 struct address_space_operations hfsplus_btree_aops = {
128 	.readpage	= hfsplus_readpage,
129 	.writepage	= hfsplus_writepage,
130 	.sync_page	= block_sync_page,
131 	.prepare_write	= hfsplus_prepare_write,
132 	.commit_write	= generic_commit_write,
133 	.bmap		= hfsplus_bmap,
134 	.releasepage	= hfsplus_releasepage,
135 };
136 
137 struct address_space_operations hfsplus_aops = {
138 	.readpage	= hfsplus_readpage,
139 	.writepage	= hfsplus_writepage,
140 	.sync_page	= block_sync_page,
141 	.prepare_write	= hfsplus_prepare_write,
142 	.commit_write	= generic_commit_write,
143 	.bmap		= hfsplus_bmap,
144 	.direct_IO	= hfsplus_direct_IO,
145 	.writepages	= hfsplus_writepages,
146 };
147 
148 static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
149 					  struct nameidata *nd)
150 {
151 	struct hfs_find_data fd;
152 	struct super_block *sb = dir->i_sb;
153 	struct inode *inode = NULL;
154 	int err;
155 
156 	if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
157 		goto out;
158 
159 	inode = HFSPLUS_I(dir).rsrc_inode;
160 	if (inode)
161 		goto out;
162 
163 	inode = new_inode(sb);
164 	if (!inode)
165 		return ERR_PTR(-ENOMEM);
166 
167 	inode->i_ino = dir->i_ino;
168 	INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
169 	init_MUTEX(&HFSPLUS_I(inode).extents_lock);
170 	HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
171 
172 	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
173 	err = hfsplus_find_cat(sb, dir->i_ino, &fd);
174 	if (!err)
175 		err = hfsplus_cat_read_inode(inode, &fd);
176 	hfs_find_exit(&fd);
177 	if (err) {
178 		iput(inode);
179 		return ERR_PTR(err);
180 	}
181 	HFSPLUS_I(inode).rsrc_inode = dir;
182 	HFSPLUS_I(dir).rsrc_inode = inode;
183 	igrab(dir);
184 	hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
185 	mark_inode_dirty(inode);
186 	{
187 	void hfsplus_inode_check(struct super_block *sb);
188 	atomic_inc(&HFSPLUS_SB(sb).inode_cnt);
189 	hfsplus_inode_check(sb);
190 	}
191 out:
192 	d_add(dentry, inode);
193 	return NULL;
194 }
195 
196 static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
197 {
198 	struct super_block *sb = inode->i_sb;
199 	u16 mode;
200 
201 	mode = be16_to_cpu(perms->mode);
202 
203 	inode->i_uid = be32_to_cpu(perms->owner);
204 	if (!inode->i_uid && !mode)
205 		inode->i_uid = HFSPLUS_SB(sb).uid;
206 
207 	inode->i_gid = be32_to_cpu(perms->group);
208 	if (!inode->i_gid && !mode)
209 		inode->i_gid = HFSPLUS_SB(sb).gid;
210 
211 	if (dir) {
212 		mode = mode ? (mode & S_IALLUGO) :
213 			(S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
214 		mode |= S_IFDIR;
215 	} else if (!mode)
216 		mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
217 			~(HFSPLUS_SB(sb).umask));
218 	inode->i_mode = mode;
219 
220 	HFSPLUS_I(inode).rootflags = perms->rootflags;
221 	HFSPLUS_I(inode).userflags = perms->userflags;
222 	if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
223 		inode->i_flags |= S_IMMUTABLE;
224 	else
225 		inode->i_flags &= ~S_IMMUTABLE;
226 	if (perms->rootflags & HFSPLUS_FLG_APPEND)
227 		inode->i_flags |= S_APPEND;
228 	else
229 		inode->i_flags &= ~S_APPEND;
230 }
231 
232 static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
233 {
234 	if (inode->i_flags & S_IMMUTABLE)
235 		perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
236 	else
237 		perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
238 	if (inode->i_flags & S_APPEND)
239 		perms->rootflags |= HFSPLUS_FLG_APPEND;
240 	else
241 		perms->rootflags &= ~HFSPLUS_FLG_APPEND;
242 	perms->userflags = HFSPLUS_I(inode).userflags;
243 	perms->mode = cpu_to_be16(inode->i_mode);
244 	perms->owner = cpu_to_be32(inode->i_uid);
245 	perms->group = cpu_to_be32(inode->i_gid);
246 	perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
247 }
248 
249 static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
250 {
251 	/* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
252 	 * open_exec has the same test, so it's still not executable, if a x bit
253 	 * is set fall back to standard permission check.
254 	 */
255 	if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
256 		return 0;
257 	return generic_permission(inode, mask, NULL);
258 }
259 
260 
261 static int hfsplus_file_open(struct inode *inode, struct file *file)
262 {
263 	if (HFSPLUS_IS_RSRC(inode))
264 		inode = HFSPLUS_I(inode).rsrc_inode;
265 	if (atomic_read(&file->f_count) != 1)
266 		return 0;
267 	atomic_inc(&HFSPLUS_I(inode).opencnt);
268 	return 0;
269 }
270 
271 static int hfsplus_file_release(struct inode *inode, struct file *file)
272 {
273 	struct super_block *sb = inode->i_sb;
274 
275 	if (HFSPLUS_IS_RSRC(inode))
276 		inode = HFSPLUS_I(inode).rsrc_inode;
277 	if (atomic_read(&file->f_count) != 0)
278 		return 0;
279 	if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
280 		down(&inode->i_sem);
281 		hfsplus_file_truncate(inode);
282 		if (inode->i_flags & S_DEAD) {
283 			hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
284 			hfsplus_delete_inode(inode);
285 		}
286 		up(&inode->i_sem);
287 	}
288 	return 0;
289 }
290 
291 extern struct inode_operations hfsplus_dir_inode_operations;
292 extern struct file_operations hfsplus_dir_operations;
293 
294 static struct inode_operations hfsplus_file_inode_operations = {
295 	.lookup		= hfsplus_file_lookup,
296 	.truncate	= hfsplus_file_truncate,
297 	.permission	= hfsplus_permission,
298 	.setxattr	= hfsplus_setxattr,
299 	.getxattr	= hfsplus_getxattr,
300 	.listxattr	= hfsplus_listxattr,
301 };
302 
303 static struct file_operations hfsplus_file_operations = {
304 	.llseek 	= generic_file_llseek,
305 	.read		= generic_file_read,
306 	.write		= generic_file_write,
307 	.mmap		= generic_file_mmap,
308 	.sendfile	= generic_file_sendfile,
309 	.fsync		= file_fsync,
310 	.open		= hfsplus_file_open,
311 	.release	= hfsplus_file_release,
312 	.ioctl          = hfsplus_ioctl,
313 };
314 
315 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
316 {
317 	struct inode *inode = new_inode(sb);
318 	if (!inode)
319 		return NULL;
320 
321 	{
322 	void hfsplus_inode_check(struct super_block *sb);
323 	atomic_inc(&HFSPLUS_SB(sb).inode_cnt);
324 	hfsplus_inode_check(sb);
325 	}
326 	inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
327 	inode->i_mode = mode;
328 	inode->i_uid = current->fsuid;
329 	inode->i_gid = current->fsgid;
330 	inode->i_nlink = 1;
331 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
332 	inode->i_blksize = HFSPLUS_SB(sb).alloc_blksz;
333 	INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
334 	init_MUTEX(&HFSPLUS_I(inode).extents_lock);
335 	atomic_set(&HFSPLUS_I(inode).opencnt, 0);
336 	HFSPLUS_I(inode).flags = 0;
337 	memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
338 	memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
339 	HFSPLUS_I(inode).alloc_blocks = 0;
340 	HFSPLUS_I(inode).first_blocks = 0;
341 	HFSPLUS_I(inode).cached_start = 0;
342 	HFSPLUS_I(inode).cached_blocks = 0;
343 	HFSPLUS_I(inode).phys_size = 0;
344 	HFSPLUS_I(inode).fs_blocks = 0;
345 	HFSPLUS_I(inode).rsrc_inode = NULL;
346 	if (S_ISDIR(inode->i_mode)) {
347 		inode->i_size = 2;
348 		HFSPLUS_SB(sb).folder_count++;
349 		inode->i_op = &hfsplus_dir_inode_operations;
350 		inode->i_fop = &hfsplus_dir_operations;
351 	} else if (S_ISREG(inode->i_mode)) {
352 		HFSPLUS_SB(sb).file_count++;
353 		inode->i_op = &hfsplus_file_inode_operations;
354 		inode->i_fop = &hfsplus_file_operations;
355 		inode->i_mapping->a_ops = &hfsplus_aops;
356 		HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
357 	} else if (S_ISLNK(inode->i_mode)) {
358 		HFSPLUS_SB(sb).file_count++;
359 		inode->i_op = &page_symlink_inode_operations;
360 		inode->i_mapping->a_ops = &hfsplus_aops;
361 		HFSPLUS_I(inode).clump_blocks = 1;
362 	} else
363 		HFSPLUS_SB(sb).file_count++;
364 	insert_inode_hash(inode);
365 	mark_inode_dirty(inode);
366 	sb->s_dirt = 1;
367 
368 	return inode;
369 }
370 
371 void hfsplus_delete_inode(struct inode *inode)
372 {
373 	struct super_block *sb = inode->i_sb;
374 
375 	if (S_ISDIR(inode->i_mode)) {
376 		HFSPLUS_SB(sb).folder_count--;
377 		sb->s_dirt = 1;
378 		return;
379 	}
380 	HFSPLUS_SB(sb).file_count--;
381 	if (S_ISREG(inode->i_mode)) {
382 		if (!inode->i_nlink) {
383 			inode->i_size = 0;
384 			hfsplus_file_truncate(inode);
385 		}
386 	} else if (S_ISLNK(inode->i_mode)) {
387 		inode->i_size = 0;
388 		hfsplus_file_truncate(inode);
389 	}
390 	sb->s_dirt = 1;
391 }
392 
393 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
394 {
395 	struct super_block *sb = inode->i_sb;
396 	u32 count;
397 	int i;
398 
399 	memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
400 	       sizeof(hfsplus_extent_rec));
401 	for (count = 0, i = 0; i < 8; i++)
402 		count += be32_to_cpu(fork->extents[i].block_count);
403 	HFSPLUS_I(inode).first_blocks = count;
404 	memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
405 	HFSPLUS_I(inode).cached_start = 0;
406 	HFSPLUS_I(inode).cached_blocks = 0;
407 
408 	HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
409 	inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
410 	HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
411 	inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
412 	HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
413 	if (!HFSPLUS_I(inode).clump_blocks)
414 		HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
415 				HFSPLUS_SB(sb).data_clump_blocks;
416 }
417 
418 void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
419 {
420 	memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
421 	       sizeof(hfsplus_extent_rec));
422 	fork->total_size = cpu_to_be64(inode->i_size);
423 	fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
424 }
425 
426 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
427 {
428 	hfsplus_cat_entry entry;
429 	int res = 0;
430 	u16 type;
431 
432 	type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
433 
434 	HFSPLUS_I(inode).dev = 0;
435 	inode->i_blksize = HFSPLUS_SB(inode->i_sb).alloc_blksz;
436 	if (type == HFSPLUS_FOLDER) {
437 		struct hfsplus_cat_folder *folder = &entry.folder;
438 
439 		if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
440 			/* panic? */;
441 		hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
442 					sizeof(struct hfsplus_cat_folder));
443 		hfsplus_get_perms(inode, &folder->permissions, 1);
444 		inode->i_nlink = 1;
445 		inode->i_size = 2 + be32_to_cpu(folder->valence);
446 		inode->i_atime = hfsp_mt2ut(folder->access_date);
447 		inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
448 		inode->i_ctime = inode->i_mtime;
449 		HFSPLUS_I(inode).fs_blocks = 0;
450 		inode->i_op = &hfsplus_dir_inode_operations;
451 		inode->i_fop = &hfsplus_dir_operations;
452 	} else if (type == HFSPLUS_FILE) {
453 		struct hfsplus_cat_file *file = &entry.file;
454 
455 		if (fd->entrylength < sizeof(struct hfsplus_cat_file))
456 			/* panic? */;
457 		hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
458 					sizeof(struct hfsplus_cat_file));
459 
460 		hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
461 					&file->data_fork : &file->rsrc_fork);
462 		hfsplus_get_perms(inode, &file->permissions, 0);
463 		inode->i_nlink = 1;
464 		if (S_ISREG(inode->i_mode)) {
465 			if (file->permissions.dev)
466 				inode->i_nlink = be32_to_cpu(file->permissions.dev);
467 			inode->i_op = &hfsplus_file_inode_operations;
468 			inode->i_fop = &hfsplus_file_operations;
469 			inode->i_mapping->a_ops = &hfsplus_aops;
470 		} else if (S_ISLNK(inode->i_mode)) {
471 			inode->i_op = &page_symlink_inode_operations;
472 			inode->i_mapping->a_ops = &hfsplus_aops;
473 		} else {
474 			init_special_inode(inode, inode->i_mode,
475 					   be32_to_cpu(file->permissions.dev));
476 		}
477 		inode->i_atime = hfsp_mt2ut(file->access_date);
478 		inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
479 		inode->i_ctime = inode->i_mtime;
480 	} else {
481 		printk("HFS+-fs: bad catalog entry used to create inode\n");
482 		res = -EIO;
483 	}
484 	return res;
485 }
486 
487 int hfsplus_cat_write_inode(struct inode *inode)
488 {
489 	struct inode *main_inode = inode;
490 	struct hfs_find_data fd;
491 	hfsplus_cat_entry entry;
492 
493 	if (HFSPLUS_IS_RSRC(inode))
494 		main_inode = HFSPLUS_I(inode).rsrc_inode;
495 
496 	if (!main_inode->i_nlink)
497 		return 0;
498 
499 	if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
500 		/* panic? */
501 		return -EIO;
502 
503 	if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
504 		/* panic? */
505 		goto out;
506 
507 	if (S_ISDIR(main_inode->i_mode)) {
508 		struct hfsplus_cat_folder *folder = &entry.folder;
509 
510 		if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
511 			/* panic? */;
512 		hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
513 					sizeof(struct hfsplus_cat_folder));
514 		/* simple node checks? */
515 		hfsplus_set_perms(inode, &folder->permissions);
516 		folder->access_date = hfsp_ut2mt(inode->i_atime);
517 		folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
518 		folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
519 		folder->valence = cpu_to_be32(inode->i_size - 2);
520 		hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
521 					 sizeof(struct hfsplus_cat_folder));
522 	} else if (HFSPLUS_IS_RSRC(inode)) {
523 		struct hfsplus_cat_file *file = &entry.file;
524 		hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
525 			       sizeof(struct hfsplus_cat_file));
526 		hfsplus_inode_write_fork(inode, &file->rsrc_fork);
527 		hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
528 				sizeof(struct hfsplus_cat_file));
529 	} else {
530 		struct hfsplus_cat_file *file = &entry.file;
531 
532 		if (fd.entrylength < sizeof(struct hfsplus_cat_file))
533 			/* panic? */;
534 		hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
535 					sizeof(struct hfsplus_cat_file));
536 		hfsplus_inode_write_fork(inode, &file->data_fork);
537 		if (S_ISREG(inode->i_mode))
538 			HFSPLUS_I(inode).dev = inode->i_nlink;
539 		if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
540 			HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
541 		hfsplus_set_perms(inode, &file->permissions);
542 		if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
543 			file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
544 		else
545 			file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
546 		file->access_date = hfsp_ut2mt(inode->i_atime);
547 		file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
548 		file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
549 		hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
550 					 sizeof(struct hfsplus_cat_file));
551 	}
552 out:
553 	hfs_find_exit(&fd);
554 	return 0;
555 }
556