hfsplus_fs.h 17 KB

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  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. #ifndef _LINUX_HFSPLUS_FS_H
  11. #define _LINUX_HFSPLUS_FS_H
  12. #ifdef pr_fmt
  13. #undef pr_fmt
  14. #endif
  15. #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  16. #include <linux/fs.h>
  17. #include <linux/mutex.h>
  18. #include <linux/buffer_head.h>
  19. #include <linux/blkdev.h>
  20. #include "hfsplus_raw.h"
  21. #define DBG_BNODE_REFS 0x00000001
  22. #define DBG_BNODE_MOD 0x00000002
  23. #define DBG_CAT_MOD 0x00000004
  24. #define DBG_INODE 0x00000008
  25. #define DBG_SUPER 0x00000010
  26. #define DBG_EXTENT 0x00000020
  27. #define DBG_BITMAP 0x00000040
  28. #define DBG_ATTR_MOD 0x00000080
  29. #if 0
  30. #define DBG_MASK (DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)
  31. #define DBG_MASK (DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE)
  32. #define DBG_MASK (DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)
  33. #endif
  34. #define DBG_MASK (0)
  35. #define hfs_dbg(flg, fmt, ...) \
  36. do { \
  37. if (DBG_##flg & DBG_MASK) \
  38. printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \
  39. } while (0)
  40. #define hfs_dbg_cont(flg, fmt, ...) \
  41. do { \
  42. if (DBG_##flg & DBG_MASK) \
  43. pr_cont(fmt, ##__VA_ARGS__); \
  44. } while (0)
  45. /* Runtime config options */
  46. #define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */
  47. #define HFSPLUS_TYPE_DATA 0x00
  48. #define HFSPLUS_TYPE_RSRC 0xFF
  49. typedef int (*btree_keycmp)(const hfsplus_btree_key *,
  50. const hfsplus_btree_key *);
  51. #define NODE_HASH_SIZE 256
  52. /* B-tree mutex nested subclasses */
  53. enum hfsplus_btree_mutex_classes {
  54. CATALOG_BTREE_MUTEX,
  55. EXTENTS_BTREE_MUTEX,
  56. ATTR_BTREE_MUTEX,
  57. };
  58. /* An HFS+ BTree held in memory */
  59. struct hfs_btree {
  60. struct super_block *sb;
  61. struct inode *inode;
  62. btree_keycmp keycmp;
  63. u32 cnid;
  64. u32 root;
  65. u32 leaf_count;
  66. u32 leaf_head;
  67. u32 leaf_tail;
  68. u32 node_count;
  69. u32 free_nodes;
  70. u32 attributes;
  71. unsigned int node_size;
  72. unsigned int node_size_shift;
  73. unsigned int max_key_len;
  74. unsigned int depth;
  75. struct mutex tree_lock;
  76. unsigned int pages_per_bnode;
  77. spinlock_t hash_lock;
  78. struct hfs_bnode *node_hash[NODE_HASH_SIZE];
  79. int node_hash_cnt;
  80. };
  81. struct page;
  82. /* An HFS+ BTree node in memory */
  83. struct hfs_bnode {
  84. struct hfs_btree *tree;
  85. u32 prev;
  86. u32 this;
  87. u32 next;
  88. u32 parent;
  89. u16 num_recs;
  90. u8 type;
  91. u8 height;
  92. struct hfs_bnode *next_hash;
  93. unsigned long flags;
  94. wait_queue_head_t lock_wq;
  95. atomic_t refcnt;
  96. unsigned int page_offset;
  97. struct page *page[];
  98. };
  99. #define HFS_BNODE_LOCK 0
  100. #define HFS_BNODE_ERROR 1
  101. #define HFS_BNODE_NEW 2
  102. #define HFS_BNODE_DIRTY 3
  103. #define HFS_BNODE_DELETED 4
  104. /*
  105. * Attributes file states
  106. */
  107. #define HFSPLUS_EMPTY_ATTR_TREE 0
  108. #define HFSPLUS_CREATING_ATTR_TREE 1
  109. #define HFSPLUS_VALID_ATTR_TREE 2
  110. #define HFSPLUS_FAILED_ATTR_TREE 3
  111. /*
  112. * HFS+ superblock info (built from Volume Header on disk)
  113. */
  114. struct hfsplus_vh;
  115. struct hfs_btree;
  116. struct hfsplus_sb_info {
  117. void *s_vhdr_buf;
  118. struct hfsplus_vh *s_vhdr;
  119. void *s_backup_vhdr_buf;
  120. struct hfsplus_vh *s_backup_vhdr;
  121. struct hfs_btree *ext_tree;
  122. struct hfs_btree *cat_tree;
  123. struct hfs_btree *attr_tree;
  124. atomic_t attr_tree_state;
  125. struct inode *alloc_file;
  126. struct inode *hidden_dir;
  127. struct nls_table *nls;
  128. /* Runtime variables */
  129. u32 blockoffset;
  130. sector_t part_start;
  131. sector_t sect_count;
  132. int fs_shift;
  133. /* immutable data from the volume header */
  134. u32 alloc_blksz;
  135. int alloc_blksz_shift;
  136. u32 total_blocks;
  137. u32 data_clump_blocks, rsrc_clump_blocks;
  138. /* mutable data from the volume header, protected by alloc_mutex */
  139. u32 free_blocks;
  140. struct mutex alloc_mutex;
  141. /* mutable data from the volume header, protected by vh_mutex */
  142. u32 next_cnid;
  143. u32 file_count;
  144. u32 folder_count;
  145. struct mutex vh_mutex;
  146. /* Config options */
  147. u32 creator;
  148. u32 type;
  149. umode_t umask;
  150. kuid_t uid;
  151. kgid_t gid;
  152. int part, session;
  153. unsigned long flags;
  154. int work_queued; /* non-zero delayed work is queued */
  155. struct delayed_work sync_work; /* FS sync delayed work */
  156. spinlock_t work_lock; /* protects sync_work and work_queued */
  157. };
  158. #define HFSPLUS_SB_WRITEBACKUP 0
  159. #define HFSPLUS_SB_NODECOMPOSE 1
  160. #define HFSPLUS_SB_FORCE 2
  161. #define HFSPLUS_SB_HFSX 3
  162. #define HFSPLUS_SB_CASEFOLD 4
  163. #define HFSPLUS_SB_NOBARRIER 5
  164. static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)
  165. {
  166. return sb->s_fs_info;
  167. }
  168. struct hfsplus_inode_info {
  169. atomic_t opencnt;
  170. /*
  171. * Extent allocation information, protected by extents_lock.
  172. */
  173. u32 first_blocks;
  174. u32 clump_blocks;
  175. u32 alloc_blocks;
  176. u32 cached_start;
  177. u32 cached_blocks;
  178. hfsplus_extent_rec first_extents;
  179. hfsplus_extent_rec cached_extents;
  180. unsigned int extent_state;
  181. struct mutex extents_lock;
  182. /*
  183. * Immutable data.
  184. */
  185. struct inode *rsrc_inode;
  186. __be32 create_date;
  187. /*
  188. * Protected by sbi->vh_mutex.
  189. */
  190. u32 linkid;
  191. /*
  192. * Accessed using atomic bitops.
  193. */
  194. unsigned long flags;
  195. /*
  196. * Protected by i_mutex.
  197. */
  198. sector_t fs_blocks;
  199. u8 userflags; /* BSD user file flags */
  200. u32 subfolders; /* Subfolder count (HFSX only) */
  201. struct list_head open_dir_list;
  202. spinlock_t open_dir_lock;
  203. loff_t phys_size;
  204. struct inode vfs_inode;
  205. };
  206. #define HFSPLUS_EXT_DIRTY 0x0001
  207. #define HFSPLUS_EXT_NEW 0x0002
  208. #define HFSPLUS_I_RSRC 0 /* represents a resource fork */
  209. #define HFSPLUS_I_CAT_DIRTY 1 /* has changes in the catalog tree */
  210. #define HFSPLUS_I_EXT_DIRTY 2 /* has changes in the extent tree */
  211. #define HFSPLUS_I_ALLOC_DIRTY 3 /* has changes in the allocation file */
  212. #define HFSPLUS_I_ATTR_DIRTY 4 /* has changes in the attributes tree */
  213. #define HFSPLUS_IS_RSRC(inode) \
  214. test_bit(HFSPLUS_I_RSRC, &HFSPLUS_I(inode)->flags)
  215. static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)
  216. {
  217. return container_of(inode, struct hfsplus_inode_info, vfs_inode);
  218. }
  219. /*
  220. * Mark an inode dirty, and also mark the btree in which the
  221. * specific type of metadata is stored.
  222. * For data or metadata that gets written back by into the catalog btree
  223. * by hfsplus_write_inode a plain mark_inode_dirty call is enough.
  224. */
  225. static inline void hfsplus_mark_inode_dirty(struct inode *inode,
  226. unsigned int flag)
  227. {
  228. set_bit(flag, &HFSPLUS_I(inode)->flags);
  229. mark_inode_dirty(inode);
  230. }
  231. struct hfs_find_data {
  232. /* filled by caller */
  233. hfsplus_btree_key *search_key;
  234. hfsplus_btree_key *key;
  235. /* filled by find */
  236. struct hfs_btree *tree;
  237. struct hfs_bnode *bnode;
  238. /* filled by findrec */
  239. int record;
  240. int keyoffset, keylength;
  241. int entryoffset, entrylength;
  242. };
  243. struct hfsplus_readdir_data {
  244. struct list_head list;
  245. struct file *file;
  246. struct hfsplus_cat_key key;
  247. };
  248. /*
  249. * Find minimum acceptible I/O size for an hfsplus sb.
  250. */
  251. static inline unsigned short hfsplus_min_io_size(struct super_block *sb)
  252. {
  253. return max_t(unsigned short, bdev_logical_block_size(sb->s_bdev),
  254. HFSPLUS_SECTOR_SIZE);
  255. }
  256. #define hfs_btree_open hfsplus_btree_open
  257. #define hfs_btree_close hfsplus_btree_close
  258. #define hfs_btree_write hfsplus_btree_write
  259. #define hfs_bmap_reserve hfsplus_bmap_reserve
  260. #define hfs_bmap_alloc hfsplus_bmap_alloc
  261. #define hfs_bmap_free hfsplus_bmap_free
  262. #define hfs_bnode_read hfsplus_bnode_read
  263. #define hfs_bnode_read_u16 hfsplus_bnode_read_u16
  264. #define hfs_bnode_read_u8 hfsplus_bnode_read_u8
  265. #define hfs_bnode_read_key hfsplus_bnode_read_key
  266. #define hfs_bnode_write hfsplus_bnode_write
  267. #define hfs_bnode_write_u16 hfsplus_bnode_write_u16
  268. #define hfs_bnode_clear hfsplus_bnode_clear
  269. #define hfs_bnode_copy hfsplus_bnode_copy
  270. #define hfs_bnode_move hfsplus_bnode_move
  271. #define hfs_bnode_dump hfsplus_bnode_dump
  272. #define hfs_bnode_unlink hfsplus_bnode_unlink
  273. #define hfs_bnode_findhash hfsplus_bnode_findhash
  274. #define hfs_bnode_find hfsplus_bnode_find
  275. #define hfs_bnode_unhash hfsplus_bnode_unhash
  276. #define hfs_bnode_free hfsplus_bnode_free
  277. #define hfs_bnode_create hfsplus_bnode_create
  278. #define hfs_bnode_get hfsplus_bnode_get
  279. #define hfs_bnode_put hfsplus_bnode_put
  280. #define hfs_brec_lenoff hfsplus_brec_lenoff
  281. #define hfs_brec_keylen hfsplus_brec_keylen
  282. #define hfs_brec_insert hfsplus_brec_insert
  283. #define hfs_brec_remove hfsplus_brec_remove
  284. #define hfs_find_init hfsplus_find_init
  285. #define hfs_find_exit hfsplus_find_exit
  286. #define __hfs_brec_find __hfsplus_brec_find
  287. #define hfs_brec_find hfsplus_brec_find
  288. #define hfs_brec_read hfsplus_brec_read
  289. #define hfs_brec_goto hfsplus_brec_goto
  290. #define hfs_part_find hfsplus_part_find
  291. /*
  292. * definitions for ext2 flag ioctls (linux really needs a generic
  293. * interface for this).
  294. */
  295. /* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support
  296. * chattr/lsattr */
  297. #define HFSPLUS_IOC_EXT2_GETFLAGS FS_IOC_GETFLAGS
  298. #define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS
  299. /*
  300. * hfs+-specific ioctl for making the filesystem bootable
  301. */
  302. #define HFSPLUS_IOC_BLESS _IO('h', 0x80)
  303. typedef int (*search_strategy_t)(struct hfs_bnode *,
  304. struct hfs_find_data *,
  305. int *, int *, int *);
  306. /*
  307. * Functions in any *.c used in other files
  308. */
  309. /* attributes.c */
  310. int __init hfsplus_create_attr_tree_cache(void);
  311. void hfsplus_destroy_attr_tree_cache(void);
  312. int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *k1,
  313. const hfsplus_btree_key *k2);
  314. int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key,
  315. u32 cnid, const char *name);
  316. hfsplus_attr_entry *hfsplus_alloc_attr_entry(void);
  317. void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry);
  318. int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name,
  319. struct hfs_find_data *fd);
  320. int hfsplus_attr_exists(struct inode *inode, const char *name);
  321. int hfsplus_create_attr(struct inode *inode, const char *name,
  322. const void *value, size_t size);
  323. int hfsplus_delete_attr(struct inode *inode, const char *name);
  324. int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid);
  325. /* bitmap.c */
  326. int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset,
  327. u32 *max);
  328. int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count);
  329. /* btree.c */
  330. u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors,
  331. int file_id);
  332. struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id);
  333. void hfs_btree_close(struct hfs_btree *tree);
  334. int hfs_btree_write(struct hfs_btree *tree);
  335. int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes);
  336. struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree);
  337. void hfs_bmap_free(struct hfs_bnode *node);
  338. /* bnode.c */
  339. void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len);
  340. u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off);
  341. u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off);
  342. void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off);
  343. void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len);
  344. void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data);
  345. void hfs_bnode_clear(struct hfs_bnode *node, int off, int len);
  346. void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst,
  347. struct hfs_bnode *src_node, int src, int len);
  348. void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len);
  349. void hfs_bnode_dump(struct hfs_bnode *node);
  350. void hfs_bnode_unlink(struct hfs_bnode *node);
  351. struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid);
  352. void hfs_bnode_unhash(struct hfs_bnode *node);
  353. struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num);
  354. void hfs_bnode_free(struct hfs_bnode *node);
  355. struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num);
  356. void hfs_bnode_get(struct hfs_bnode *node);
  357. void hfs_bnode_put(struct hfs_bnode *node);
  358. bool hfs_bnode_need_zeroout(struct hfs_btree *tree);
  359. /* brec.c */
  360. u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off);
  361. u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec);
  362. int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len);
  363. int hfs_brec_remove(struct hfs_find_data *fd);
  364. /* bfind.c */
  365. int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd);
  366. void hfs_find_exit(struct hfs_find_data *fd);
  367. int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode, struct hfs_find_data *fd,
  368. int *begin, int *end, int *cur_rec);
  369. int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd,
  370. int *begin, int *end, int *cur_rec);
  371. int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd,
  372. search_strategy_t rec_found);
  373. int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare);
  374. int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len);
  375. int hfs_brec_goto(struct hfs_find_data *fd, int cnt);
  376. /* catalog.c */
  377. int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
  378. const hfsplus_btree_key *k2);
  379. int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
  380. const hfsplus_btree_key *k2);
  381. int hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
  382. u32 parent, const struct qstr *str);
  383. void hfsplus_cat_build_key_with_cnid(struct super_block *sb,
  384. hfsplus_btree_key *key, u32 parent);
  385. void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
  386. int hfsplus_find_cat(struct super_block *sb, u32 cnid,
  387. struct hfs_find_data *fd);
  388. int hfsplus_create_cat(u32 cnid, struct inode *dir, const struct qstr *str,
  389. struct inode *inode);
  390. int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str);
  391. int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, const struct qstr *src_name,
  392. struct inode *dst_dir, const struct qstr *dst_name);
  393. /* dir.c */
  394. extern const struct inode_operations hfsplus_dir_inode_operations;
  395. extern const struct file_operations hfsplus_dir_operations;
  396. /* extents.c */
  397. int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1,
  398. const hfsplus_btree_key *k2);
  399. int hfsplus_ext_write_extent(struct inode *inode);
  400. int hfsplus_get_block(struct inode *inode, sector_t iblock,
  401. struct buffer_head *bh_result, int create);
  402. int hfsplus_free_fork(struct super_block *sb, u32 cnid,
  403. struct hfsplus_fork_raw *fork, int type);
  404. int hfsplus_file_extend(struct inode *inode, bool zeroout);
  405. void hfsplus_file_truncate(struct inode *inode);
  406. /* inode.c */
  407. extern const struct address_space_operations hfsplus_aops;
  408. extern const struct address_space_operations hfsplus_btree_aops;
  409. extern const struct dentry_operations hfsplus_dentry_operations;
  410. struct inode *hfsplus_new_inode(struct super_block *sb, struct inode *dir,
  411. umode_t mode);
  412. void hfsplus_delete_inode(struct inode *inode);
  413. void hfsplus_inode_read_fork(struct inode *inode,
  414. struct hfsplus_fork_raw *fork);
  415. void hfsplus_inode_write_fork(struct inode *inode,
  416. struct hfsplus_fork_raw *fork);
  417. int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd);
  418. int hfsplus_cat_write_inode(struct inode *inode);
  419. int hfsplus_getattr(const struct path *path, struct kstat *stat,
  420. u32 request_mask, unsigned int query_flags);
  421. int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
  422. int datasync);
  423. /* ioctl.c */
  424. long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
  425. /* options.c */
  426. void hfsplus_fill_defaults(struct hfsplus_sb_info *opts);
  427. int hfsplus_parse_options_remount(char *input, int *force);
  428. int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi);
  429. int hfsplus_show_options(struct seq_file *seq, struct dentry *root);
  430. /* part_tbl.c */
  431. int hfs_part_find(struct super_block *sb, sector_t *part_start,
  432. sector_t *part_size);
  433. /* super.c */
  434. struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino);
  435. void hfsplus_mark_mdb_dirty(struct super_block *sb);
  436. /* tables.c */
  437. extern u16 hfsplus_case_fold_table[];
  438. extern u16 hfsplus_decompose_table[];
  439. extern u16 hfsplus_compose_table[];
  440. /* unicode.c */
  441. int hfsplus_strcasecmp(const struct hfsplus_unistr *s1,
  442. const struct hfsplus_unistr *s2);
  443. int hfsplus_strcmp(const struct hfsplus_unistr *s1,
  444. const struct hfsplus_unistr *s2);
  445. int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr,
  446. char *astr, int *len_p);
  447. int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr,
  448. int max_unistr_len, const char *astr, int len);
  449. int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str);
  450. int hfsplus_compare_dentry(const struct dentry *dentry, unsigned int len,
  451. const char *str, const struct qstr *name);
  452. /* wrapper.c */
  453. int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf,
  454. void **data, int op, int op_flags);
  455. int hfsplus_read_wrapper(struct super_block *sb);
  456. /*
  457. * time helpers: convert between 1904-base and 1970-base timestamps
  458. *
  459. * HFS+ implementations are highly inconsistent, this one matches the
  460. * traditional behavior of 64-bit Linux, giving the most useful
  461. * time range between 1970 and 2106, by treating any on-disk timestamp
  462. * under HFSPLUS_UTC_OFFSET (Jan 1 1970) as a time between 2040 and 2106.
  463. */
  464. #define HFSPLUS_UTC_OFFSET 2082844800U
  465. static inline time64_t __hfsp_mt2ut(__be32 mt)
  466. {
  467. time64_t ut = (u32)(be32_to_cpu(mt) - HFSPLUS_UTC_OFFSET);
  468. return ut;
  469. }
  470. static inline __be32 __hfsp_ut2mt(time64_t ut)
  471. {
  472. return cpu_to_be32(lower_32_bits(ut) + HFSPLUS_UTC_OFFSET);
  473. }
  474. /* compatibility */
  475. #define hfsp_mt2ut(t) (struct timespec64){ .tv_sec = __hfsp_mt2ut(t) }
  476. #define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
  477. #define hfsp_now2mt() __hfsp_ut2mt(ktime_get_real_seconds())
  478. #endif