1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * linux/include/linux/hfsplus_fs.h
4 *
5 * Copyright (C) 1999
6 * Brad Boyer (flar@pants.nu)
7 * (C) 2003 Ardis Technologies <roman@ardistech.com>
8 *
9 */
10
11 #ifndef _LINUX_HFSPLUS_FS_H
12 #define _LINUX_HFSPLUS_FS_H
13
14 #ifdef pr_fmt
15 #undef pr_fmt
16 #endif
17
18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19
20 #include <linux/fs.h>
21 #include <linux/mutex.h>
22 #include <linux/buffer_head.h>
23 #include <linux/blkdev.h>
24 #include <linux/fs_context.h>
25 #include "hfsplus_raw.h"
26
27 #define DBG_BNODE_REFS 0x00000001
28 #define DBG_BNODE_MOD 0x00000002
29 #define DBG_CAT_MOD 0x00000004
30 #define DBG_INODE 0x00000008
31 #define DBG_SUPER 0x00000010
32 #define DBG_EXTENT 0x00000020
33 #define DBG_BITMAP 0x00000040
34 #define DBG_ATTR_MOD 0x00000080
35
36 #if 0
37 #define DBG_MASK (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
38 #define DBG_MASK (DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE)
39 #define DBG_MASK (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)
40 #endif
41 #define DBG_MASK (0)
42
43 #define hfs_dbg(flg, fmt, ...) \
44 do { \
45 if (DBG_##flg & DBG_MASK) \
46 printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
47 } while (0)
48
49 #define hfs_dbg_cont(flg, fmt, ...) \
50 do { \
51 if (DBG_##flg & DBG_MASK) \
52 pr_cont(fmt, ##__VA_ARGS__); \
53 } while (0)
54
55 /* Runtime config options */
56 #define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */
57
58 #define HFSPLUS_TYPE_DATA 0x00
59 #define HFSPLUS_TYPE_RSRC 0xFF
60
61 typedef int (*btree_keycmp)(const hfsplus_btree_key *,
62 const hfsplus_btree_key *);
63
64 #define NODE_HASH_SIZE 256
65
66 /* B-tree mutex nested subclasses */
67 enum hfsplus_btree_mutex_classes {
68 CATALOG_BTREE_MUTEX,
69 EXTENTS_BTREE_MUTEX,
70 ATTR_BTREE_MUTEX,
71 };
72
73 /* An HFS+ BTree held in memory */
74 struct hfs_btree {
75 struct super_block *sb;
76 struct inode *inode;
77 btree_keycmp keycmp;
78
79 u32 cnid;
80 u32 root;
81 u32 leaf_count;
82 u32 leaf_head;
83 u32 leaf_tail;
84 u32 node_count;
85 u32 free_nodes;
86 u32 attributes;
87
88 unsigned int node_size;
89 unsigned int node_size_shift;
90 unsigned int max_key_len;
91 unsigned int depth;
92
93 struct mutex tree_lock;
94
95 unsigned int pages_per_bnode;
96 spinlock_t hash_lock;
97 struct hfs_bnode *node_hash[NODE_HASH_SIZE];
98 int node_hash_cnt;
99 };
100
101 struct page;
102
103 /* An HFS+ BTree node in memory */
104 struct hfs_bnode {
105 struct hfs_btree *tree;
106
107 u32 prev;
108 u32 this;
109 u32 next;
110 u32 parent;
111
112 u16 num_recs;
113 u8 type;
114 u8 height;
115
116 struct hfs_bnode *next_hash;
117 unsigned long flags;
118 wait_queue_head_t lock_wq;
119 atomic_t refcnt;
120 unsigned int page_offset;
121 struct page *page[];
122 };
123
124 #define HFS_BNODE_LOCK 0
125 #define HFS_BNODE_ERROR 1
126 #define HFS_BNODE_NEW 2
127 #define HFS_BNODE_DIRTY 3
128 #define HFS_BNODE_DELETED 4
129
130 /*
131 * Attributes file states
132 */
133 #define HFSPLUS_EMPTY_ATTR_TREE 0
134 #define HFSPLUS_CREATING_ATTR_TREE 1
135 #define HFSPLUS_VALID_ATTR_TREE 2
136 #define HFSPLUS_FAILED_ATTR_TREE 3
137
138 /*
139 * HFS+ superblock info (built from Volume Header on disk)
140 */
141
142 struct hfsplus_vh;
143 struct hfs_btree;
144
145 struct hfsplus_sb_info {
146 void *s_vhdr_buf;
147 struct hfsplus_vh *s_vhdr;
148 void *s_backup_vhdr_buf;
149 struct hfsplus_vh *s_backup_vhdr;
150 struct hfs_btree *ext_tree;
151 struct hfs_btree *cat_tree;
152 struct hfs_btree *attr_tree;
153 atomic_t attr_tree_state;
154 struct inode *alloc_file;
155 struct inode *hidden_dir;
156 struct nls_table *nls;
157
158 /* Runtime variables */
159 u32 blockoffset;
160 u32 min_io_size;
161 sector_t part_start;
162 sector_t sect_count;
163 int fs_shift;
164
165 /* immutable data from the volume header */
166 u32 alloc_blksz;
167 int alloc_blksz_shift;
168 u32 total_blocks;
169 u32 data_clump_blocks, rsrc_clump_blocks;
170
171 /* mutable data from the volume header, protected by alloc_mutex */
172 u32 free_blocks;
173 struct mutex alloc_mutex;
174
175 /* mutable data from the volume header, protected by vh_mutex */
176 u32 next_cnid;
177 u32 file_count;
178 u32 folder_count;
179 struct mutex vh_mutex;
180
181 /* Config options */
182 u32 creator;
183 u32 type;
184
185 umode_t umask;
186 kuid_t uid;
187 kgid_t gid;
188
189 int part, session;
190 unsigned long flags;
191
192 int work_queued; /* non-zero delayed work is queued */
193 struct delayed_work sync_work; /* FS sync delayed work */
194 spinlock_t work_lock; /* protects sync_work and work_queued */
195 struct rcu_head rcu;
196 };
197
198 #define HFSPLUS_SB_WRITEBACKUP 0
199 #define HFSPLUS_SB_NODECOMPOSE 1
200 #define HFSPLUS_SB_FORCE 2
201 #define HFSPLUS_SB_HFSX 3
202 #define HFSPLUS_SB_CASEFOLD 4
203 #define HFSPLUS_SB_NOBARRIER 5
204 #define HFSPLUS_SB_UID 6
205 #define HFSPLUS_SB_GID 7
206
HFSPLUS_SB(struct super_block * sb)207 static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
208 {
209 return sb->s_fs_info;
210 }
211
212
213 struct hfsplus_inode_info {
214 atomic_t opencnt;
215
216 /*
217 * Extent allocation information, protected by extents_lock.
218 */
219 u32 first_blocks;
220 u32 clump_blocks;
221 u32 alloc_blocks;
222 u32 cached_start;
223 u32 cached_blocks;
224 hfsplus_extent_rec first_extents;
225 hfsplus_extent_rec cached_extents;
226 unsigned int extent_state;
227 struct mutex extents_lock;
228
229 /*
230 * Immutable data.
231 */
232 struct inode *rsrc_inode;
233 __be32 create_date;
234
235 /*
236 * Protected by sbi->vh_mutex.
237 */
238 u32 linkid;
239
240 /*
241 * Accessed using atomic bitops.
242 */
243 unsigned long flags;
244
245 /*
246 * Protected by i_mutex.
247 */
248 sector_t fs_blocks;
249 u8 userflags; /* BSD user file flags */
250 u32 subfolders; /* Subfolder count (HFSX only) */
251 struct list_head open_dir_list;
252 spinlock_t open_dir_lock;
253 loff_t phys_size;
254
255 struct inode vfs_inode;
256 };
257
258 #define HFSPLUS_EXT_DIRTY 0x0001
259 #define HFSPLUS_EXT_NEW 0x0002
260
261 #define HFSPLUS_I_RSRC 0 /* represents a resource fork */
262 #define HFSPLUS_I_CAT_DIRTY 1 /* has changes in the catalog tree */
263 #define HFSPLUS_I_EXT_DIRTY 2 /* has changes in the extent tree */
264 #define HFSPLUS_I_ALLOC_DIRTY 3 /* has changes in the allocation file */
265 #define HFSPLUS_I_ATTR_DIRTY 4 /* has changes in the attributes tree */
266
267 #define HFSPLUS_IS_RSRC(inode) \
268 test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags)
269
HFSPLUS_I(struct inode * inode)270 static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
271 {
272 return container_of(inode, struct hfsplus_inode_info, vfs_inode);
273 }
274
275 /*
276 * Mark an inode dirty, and also mark the btree in which the
277 * specific type of metadata is stored.
278 * For data or metadata that gets written back by into the catalog btree
279 * by hfsplus_write_inode a plain mark_inode_dirty call is enough.
280 */
hfsplus_mark_inode_dirty(struct inode * inode,unsigned int flag)281 static inline void hfsplus_mark_inode_dirty(struct inode *inode,
282 unsigned int flag)
283 {
284 set_bit(flag, &HFSPLUS_I(inode)->flags);
285 mark_inode_dirty(inode);
286 }
287
288 struct hfs_find_data {
289 /* filled by caller */
290 hfsplus_btree_key *search_key;
291 hfsplus_btree_key *key;
292 /* filled by find */
293 struct hfs_btree *tree;
294 struct hfs_bnode *bnode;
295 /* filled by findrec */
296 int record;
297 int keyoffset, keylength;
298 int entryoffset, entrylength;
299 };
300
301 struct hfsplus_readdir_data {
302 struct list_head list;
303 struct file *file;
304 struct hfsplus_cat_key key;
305 };
306
307 /*
308 * Find minimum acceptible I/O size for an hfsplus sb.
309 */
hfsplus_min_io_size(struct super_block * sb)310 static inline unsigned short hfsplus_min_io_size(struct super_block *sb)
311 {
312 return max_t(unsigned short, HFSPLUS_SB(sb)->min_io_size,
313 HFSPLUS_SECTOR_SIZE);
314 }
315
316 #define hfs_btree_open hfsplus_btree_open
317 #define hfs_btree_close hfsplus_btree_close
318 #define hfs_btree_write hfsplus_btree_write
319 #define hfs_bmap_reserve hfsplus_bmap_reserve
320 #define hfs_bmap_alloc hfsplus_bmap_alloc
321 #define hfs_bmap_free hfsplus_bmap_free
322 #define hfs_bnode_read hfsplus_bnode_read
323 #define hfs_bnode_read_u16 hfsplus_bnode_read_u16
324 #define hfs_bnode_read_u8 hfsplus_bnode_read_u8
325 #define hfs_bnode_read_key hfsplus_bnode_read_key
326 #define hfs_bnode_write hfsplus_bnode_write
327 #define hfs_bnode_write_u16 hfsplus_bnode_write_u16
328 #define hfs_bnode_clear hfsplus_bnode_clear
329 #define hfs_bnode_copy hfsplus_bnode_copy
330 #define hfs_bnode_move hfsplus_bnode_move
331 #define hfs_bnode_dump hfsplus_bnode_dump
332 #define hfs_bnode_unlink hfsplus_bnode_unlink
333 #define hfs_bnode_findhash hfsplus_bnode_findhash
334 #define hfs_bnode_find hfsplus_bnode_find
335 #define hfs_bnode_unhash hfsplus_bnode_unhash
336 #define hfs_bnode_free hfsplus_bnode_free
337 #define hfs_bnode_create hfsplus_bnode_create
338 #define hfs_bnode_get hfsplus_bnode_get
339 #define hfs_bnode_put hfsplus_bnode_put
340 #define hfs_brec_lenoff hfsplus_brec_lenoff
341 #define hfs_brec_keylen hfsplus_brec_keylen
342 #define hfs_brec_insert hfsplus_brec_insert
343 #define hfs_brec_remove hfsplus_brec_remove
344 #define hfs_find_init hfsplus_find_init
345 #define hfs_find_exit hfsplus_find_exit
346 #define __hfs_brec_find __hfsplus_brec_find
347 #define hfs_brec_find hfsplus_brec_find
348 #define hfs_brec_read hfsplus_brec_read
349 #define hfs_brec_goto hfsplus_brec_goto
350 #define hfs_part_find hfsplus_part_find
351
352 /*
353 * hfs+-specific ioctl for making the filesystem bootable
354 */
355 #define HFSPLUS_IOC_BLESS _IO('h', 0x80)
356
357 typedef int (*search_strategy_t)(struct hfs_bnode *,
358 struct hfs_find_data *,
359 int *, int *, int *);
360
361 /*
362 * Functions in any *.c used in other files
363 */
364
365 /* attributes.c */
366 int __init hfsplus_create_attr_tree_cache(void);
367 void hfsplus_destroy_attr_tree_cache(void);
368 int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *k1,
369 const hfsplus_btree_key *k2);
370 int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
371 u32 cnid, const char *name);
372 hfsplus_attr_entry *hfsplus_alloc_attr_entry(void);
373 void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry);
374 int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name,
375 struct hfs_find_data *fd);
376 int hfsplus_attr_exists(struct inode *inode, const char *name);
377 int hfsplus_create_attr(struct inode *inode, const char *name,
378 const void *value, size_t size);
379 int hfsplus_delete_attr(struct inode *inode, const char *name);
380 int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid);
381
382 /* bitmap.c */
383 int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset,
384 u32 *max);
385 int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count);
386
387 /* btree.c */
388 u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors,
389 int file_id);
390 struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id);
391 void hfs_btree_close(struct hfs_btree *tree);
392 int hfs_btree_write(struct hfs_btree *tree);
393 int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes);
394 struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree);
395 void hfs_bmap_free(struct hfs_bnode *node);
396
397 /* bnode.c */
398 void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len);
399 u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off);
400 u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off);
401 void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off);
402 void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len);
403 void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data);
404 void hfs_bnode_clear(struct hfs_bnode *node, int off, int len);
405 void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
406 struct hfs_bnode *src_node, int src, int len);
407 void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len);
408 void hfs_bnode_dump(struct hfs_bnode *node);
409 void hfs_bnode_unlink(struct hfs_bnode *node);
410 struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid);
411 void hfs_bnode_unhash(struct hfs_bnode *node);
412 struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num);
413 void hfs_bnode_free(struct hfs_bnode *node);
414 struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num);
415 void hfs_bnode_get(struct hfs_bnode *node);
416 void hfs_bnode_put(struct hfs_bnode *node);
417 bool hfs_bnode_need_zeroout(struct hfs_btree *tree);
418
419 /* brec.c */
420 u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off);
421 u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec);
422 int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len);
423 int hfs_brec_remove(struct hfs_find_data *fd);
424
425 /* bfind.c */
426 int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd);
427 void hfs_find_exit(struct hfs_find_data *fd);
428 int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode, struct hfs_find_data *fd,
429 int *begin, int *end, int *cur_rec);
430 int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd,
431 int *begin, int *end, int *cur_rec);
432 int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd,
433 search_strategy_t rec_found);
434 int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare);
435 int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len);
436 int hfs_brec_goto(struct hfs_find_data *fd, int cnt);
437
438 /* catalog.c */
439 int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
440 const hfsplus_btree_key *k2);
441 int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
442 const hfsplus_btree_key *k2);
443 int hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
444 u32 parent, const struct qstr *str);
445 void hfsplus_cat_build_key_with_cnid(struct super_block *sb,
446 hfsplus_btree_key *key, u32 parent);
447 void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
448 int hfsplus_find_cat(struct super_block *sb, u32 cnid,
449 struct hfs_find_data *fd);
450 int hfsplus_create_cat(u32 cnid, struct inode *dir, const struct qstr *str,
451 struct inode *inode);
452 int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str);
453 int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, const struct qstr *src_name,
454 struct inode *dst_dir, const struct qstr *dst_name);
455
456 /* dir.c */
457 extern const struct inode_operations hfsplus_dir_inode_operations;
458 extern const struct file_operations hfsplus_dir_operations;
459
460 /* extents.c */
461 int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1,
462 const hfsplus_btree_key *k2);
463 int hfsplus_ext_write_extent(struct inode *inode);
464 int hfsplus_get_block(struct inode *inode, sector_t iblock,
465 struct buffer_head *bh_result, int create);
466 int hfsplus_free_fork(struct super_block *sb, u32 cnid,
467 struct hfsplus_fork_raw *fork, int type);
468 int hfsplus_file_extend(struct inode *inode, bool zeroout);
469 void hfsplus_file_truncate(struct inode *inode);
470
471 /* inode.c */
472 extern const struct address_space_operations hfsplus_aops;
473 extern const struct address_space_operations hfsplus_btree_aops;
474 extern const struct dentry_operations hfsplus_dentry_operations;
475
476 int hfsplus_write_begin(struct file *file, struct address_space *mapping,
477 loff_t pos, unsigned len, struct folio **foliop, void **fsdata);
478 struct inode *hfsplus_new_inode(struct super_block *sb, struct inode *dir,
479 umode_t mode);
480 void hfsplus_delete_inode(struct inode *inode);
481 void hfsplus_inode_read_fork(struct inode *inode,
482 struct hfsplus_fork_raw *fork);
483 void hfsplus_inode_write_fork(struct inode *inode,
484 struct hfsplus_fork_raw *fork);
485 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd);
486 int hfsplus_cat_write_inode(struct inode *inode);
487 int hfsplus_getattr(struct mnt_idmap *idmap, const struct path *path,
488 struct kstat *stat, u32 request_mask,
489 unsigned int query_flags);
490 int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
491 int datasync);
492 int hfsplus_fileattr_get(struct dentry *dentry, struct fileattr *fa);
493 int hfsplus_fileattr_set(struct mnt_idmap *idmap,
494 struct dentry *dentry, struct fileattr *fa);
495
496 /* ioctl.c */
497 long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
498
499 /* options.c */
500 void hfsplus_fill_defaults(struct hfsplus_sb_info *opts);
501 int hfsplus_parse_param(struct fs_context *fc, struct fs_parameter *param);
502 int hfsplus_show_options(struct seq_file *seq, struct dentry *root);
503
504 /* part_tbl.c */
505 int hfs_part_find(struct super_block *sb, sector_t *part_start,
506 sector_t *part_size);
507
508 /* super.c */
509 struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino);
510 void hfsplus_mark_mdb_dirty(struct super_block *sb);
511
512 /* tables.c */
513 extern u16 hfsplus_case_fold_table[];
514 extern u16 hfsplus_decompose_table[];
515 extern u16 hfsplus_compose_table[];
516
517 /* unicode.c */
518 int hfsplus_strcasecmp(const struct hfsplus_unistr *s1,
519 const struct hfsplus_unistr *s2);
520 int hfsplus_strcmp(const struct hfsplus_unistr *s1,
521 const struct hfsplus_unistr *s2);
522 int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr,
523 char *astr, int *len_p);
524 int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr,
525 int max_unistr_len, const char *astr, int len);
526 int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str);
527 int hfsplus_compare_dentry(const struct dentry *dentry, unsigned int len,
528 const char *str, const struct qstr *name);
529
530 /* wrapper.c */
531 int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf,
532 void **data, blk_opf_t opf);
533 int hfsplus_read_wrapper(struct super_block *sb);
534
535 /*
536 * time helpers: convert between 1904-base and 1970-base timestamps
537 *
538 * HFS+ implementations are highly inconsistent, this one matches the
539 * traditional behavior of 64-bit Linux, giving the most useful
540 * time range between 1970 and 2106, by treating any on-disk timestamp
541 * under HFSPLUS_UTC_OFFSET (Jan 1 1970) as a time between 2040 and 2106.
542 */
543 #define HFSPLUS_UTC_OFFSET 2082844800U
544
__hfsp_mt2ut(__be32 mt)545 static inline time64_t __hfsp_mt2ut(__be32 mt)
546 {
547 time64_t ut = (u32)(be32_to_cpu(mt) - HFSPLUS_UTC_OFFSET);
548
549 return ut;
550 }
551
__hfsp_ut2mt(time64_t ut)552 static inline __be32 __hfsp_ut2mt(time64_t ut)
553 {
554 return cpu_to_be32(lower_32_bits(ut) + HFSPLUS_UTC_OFFSET);
555 }
556
557 static inline enum hfsplus_btree_mutex_classes
hfsplus_btree_lock_class(struct hfs_btree * tree)558 hfsplus_btree_lock_class(struct hfs_btree *tree)
559 {
560 enum hfsplus_btree_mutex_classes class;
561
562 switch (tree->cnid) {
563 case HFSPLUS_CAT_CNID:
564 class = CATALOG_BTREE_MUTEX;
565 break;
566 case HFSPLUS_EXT_CNID:
567 class = EXTENTS_BTREE_MUTEX;
568 break;
569 case HFSPLUS_ATTR_CNID:
570 class = ATTR_BTREE_MUTEX;
571 break;
572 default:
573 BUG();
574 }
575 return class;
576 }
577
578 /* compatibility */
579 #define hfsp_mt2ut(t) (struct timespec64){ .tv_sec = __hfsp_mt2ut(t) }
580 #define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
581 #define hfsp_now2mt() __hfsp_ut2mt(ktime_get_real_seconds())
582
583 #endif
584