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18#ifndef __XFS_INODE_H__
19#define __XFS_INODE_H__
20
21struct posix_acl;
22struct xfs_dinode;
23struct xfs_inode;
24
25
26
27
28#define XFS_DATA_FORK 0
29#define XFS_ATTR_FORK 1
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50typedef struct xfs_ext_irec {
51 xfs_bmbt_rec_host_t *er_extbuf;
52 xfs_extnum_t er_extoff;
53 xfs_extnum_t er_extcount;
54} xfs_ext_irec_t;
55
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58
59#define XFS_IEXT_BUFSZ 4096
60#define XFS_LINEAR_EXTS (XFS_IEXT_BUFSZ / (uint)sizeof(xfs_bmbt_rec_t))
61#define XFS_INLINE_EXTS 2
62#define XFS_INLINE_DATA 32
63typedef struct xfs_ifork {
64 int if_bytes;
65 int if_real_bytes;
66 struct xfs_btree_block *if_broot;
67 short if_broot_bytes;
68 unsigned char if_flags;
69 unsigned char if_ext_max;
70 xfs_extnum_t if_lastex;
71 union {
72 xfs_bmbt_rec_host_t *if_extents;
73 xfs_ext_irec_t *if_ext_irec;
74 char *if_data;
75 } if_u1;
76 union {
77 xfs_bmbt_rec_host_t if_inline_ext[XFS_INLINE_EXTS];
78
79 char if_inline_data[XFS_INLINE_DATA];
80
81 xfs_dev_t if_rdev;
82 uuid_t if_uuid;
83 } if_u2;
84} xfs_ifork_t;
85
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89
90struct xfs_imap {
91 xfs_daddr_t im_blkno;
92 ushort im_len;
93 ushort im_boffset;
94};
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119typedef struct xfs_ictimestamp {
120 __int32_t t_sec;
121 __int32_t t_nsec;
122} xfs_ictimestamp_t;
123
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126
127
128typedef struct xfs_icdinode {
129 __uint16_t di_magic;
130 __uint16_t di_mode;
131 __int8_t di_version;
132 __int8_t di_format;
133 __uint16_t di_onlink;
134 __uint32_t di_uid;
135 __uint32_t di_gid;
136 __uint32_t di_nlink;
137 __uint16_t di_projid;
138 __uint8_t di_pad[8];
139 __uint16_t di_flushiter;
140 xfs_ictimestamp_t di_atime;
141 xfs_ictimestamp_t di_mtime;
142 xfs_ictimestamp_t di_ctime;
143 xfs_fsize_t di_size;
144 xfs_drfsbno_t di_nblocks;
145 xfs_extlen_t di_extsize;
146 xfs_extnum_t di_nextents;
147 xfs_aextnum_t di_anextents;
148 __uint8_t di_forkoff;
149 __int8_t di_aformat;
150 __uint32_t di_dmevmask;
151 __uint16_t di_dmstate;
152 __uint16_t di_flags;
153 __uint32_t di_gen;
154} xfs_icdinode_t;
155
156
157
158
159#define XFS_ICHGTIME_MOD 0x1
160#define XFS_ICHGTIME_CHG 0x2
161
162
163
164
165#define XFS_IFINLINE 0x01
166#define XFS_IFEXTENTS 0x02
167#define XFS_IFBROOT 0x04
168#define XFS_IFEXTIREC 0x08
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173
174#define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
175#define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
176
177#define XFS_IFORK_PTR(ip,w) \
178 ((w) == XFS_DATA_FORK ? \
179 &(ip)->i_df : \
180 (ip)->i_afp)
181#define XFS_IFORK_DSIZE(ip) \
182 (XFS_IFORK_Q(ip) ? \
183 XFS_IFORK_BOFF(ip) : \
184 XFS_LITINO((ip)->i_mount))
185#define XFS_IFORK_ASIZE(ip) \
186 (XFS_IFORK_Q(ip) ? \
187 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \
188 0)
189#define XFS_IFORK_SIZE(ip,w) \
190 ((w) == XFS_DATA_FORK ? \
191 XFS_IFORK_DSIZE(ip) : \
192 XFS_IFORK_ASIZE(ip))
193#define XFS_IFORK_FORMAT(ip,w) \
194 ((w) == XFS_DATA_FORK ? \
195 (ip)->i_d.di_format : \
196 (ip)->i_d.di_aformat)
197#define XFS_IFORK_FMT_SET(ip,w,n) \
198 ((w) == XFS_DATA_FORK ? \
199 ((ip)->i_d.di_format = (n)) : \
200 ((ip)->i_d.di_aformat = (n)))
201#define XFS_IFORK_NEXTENTS(ip,w) \
202 ((w) == XFS_DATA_FORK ? \
203 (ip)->i_d.di_nextents : \
204 (ip)->i_d.di_anextents)
205#define XFS_IFORK_NEXT_SET(ip,w,n) \
206 ((w) == XFS_DATA_FORK ? \
207 ((ip)->i_d.di_nextents = (n)) : \
208 ((ip)->i_d.di_anextents = (n)))
209
210
211
212#ifdef __KERNEL__
213
214struct bhv_desc;
215struct cred;
216struct ktrace;
217struct xfs_buf;
218struct xfs_bmap_free;
219struct xfs_bmbt_irec;
220struct xfs_inode_log_item;
221struct xfs_mount;
222struct xfs_trans;
223struct xfs_dquot;
224
225#if defined(XFS_ILOCK_TRACE)
226#define XFS_ILOCK_KTRACE_SIZE 32
227extern void xfs_ilock_trace(struct xfs_inode *, int, unsigned int, inst_t *);
228#else
229#define xfs_ilock_trace(i,n,f,ra)
230#endif
231
232typedef struct dm_attrs_s {
233 __uint32_t da_dmevmask;
234 __uint16_t da_dmstate;
235 __uint16_t da_pad;
236} dm_attrs_t;
237
238typedef struct xfs_inode {
239
240 struct xfs_mount *i_mount;
241 struct xfs_dquot *i_udquot;
242 struct xfs_dquot *i_gdquot;
243
244
245 xfs_ino_t i_ino;
246 struct xfs_imap i_imap;
247
248
249 xfs_ifork_t *i_afp;
250 xfs_ifork_t i_df;
251
252
253 struct xfs_trans *i_transp;
254 struct xfs_inode_log_item *i_itemp;
255 mrlock_t i_lock;
256 mrlock_t i_iolock;
257 struct completion i_flush;
258 atomic_t i_pincount;
259 wait_queue_head_t i_ipin_wait;
260 spinlock_t i_flags_lock;
261
262 unsigned short i_flags;
263 unsigned char i_update_core;
264 unsigned int i_delayed_blks;
265
266 xfs_icdinode_t i_d;
267
268 xfs_fsize_t i_size;
269 xfs_fsize_t i_new_size;
270 atomic_t i_iocount;
271
272
273 struct inode i_vnode;
274
275
276#ifdef XFS_INODE_TRACE
277 struct ktrace *i_trace;
278#endif
279#ifdef XFS_BMAP_TRACE
280 struct ktrace *i_xtrace;
281#endif
282#ifdef XFS_BTREE_TRACE
283 struct ktrace *i_btrace;
284#endif
285#ifdef XFS_RW_TRACE
286 struct ktrace *i_rwtrace;
287#endif
288#ifdef XFS_ILOCK_TRACE
289 struct ktrace *i_lock_trace;
290#endif
291#ifdef XFS_DIR2_TRACE
292 struct ktrace *i_dir_trace;
293#endif
294} xfs_inode_t;
295
296#define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
297 (ip)->i_size : (ip)->i_d.di_size;
298
299
300static inline struct xfs_inode *XFS_I(struct inode *inode)
301{
302 return container_of(inode, struct xfs_inode, i_vnode);
303}
304
305
306static inline struct inode *VFS_I(struct xfs_inode *ip)
307{
308 return &ip->i_vnode;
309}
310
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312
313
314static inline void
315__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
316{
317 ip->i_flags |= flags;
318}
319
320static inline void
321xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
322{
323 spin_lock(&ip->i_flags_lock);
324 __xfs_iflags_set(ip, flags);
325 spin_unlock(&ip->i_flags_lock);
326}
327
328static inline void
329xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
330{
331 spin_lock(&ip->i_flags_lock);
332 ip->i_flags &= ~flags;
333 spin_unlock(&ip->i_flags_lock);
334}
335
336static inline int
337__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
338{
339 return (ip->i_flags & flags);
340}
341
342static inline int
343xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
344{
345 int ret;
346 spin_lock(&ip->i_flags_lock);
347 ret = __xfs_iflags_test(ip, flags);
348 spin_unlock(&ip->i_flags_lock);
349 return ret;
350}
351
352static inline int
353xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
354{
355 int ret;
356
357 spin_lock(&ip->i_flags_lock);
358 ret = ip->i_flags & flags;
359 if (ret)
360 ip->i_flags &= ~flags;
361 spin_unlock(&ip->i_flags_lock);
362 return ret;
363}
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368
369
370static inline void xfs_iflock(xfs_inode_t *ip)
371{
372 wait_for_completion(&ip->i_flush);
373}
374
375static inline int xfs_iflock_nowait(xfs_inode_t *ip)
376{
377 return try_wait_for_completion(&ip->i_flush);
378}
379
380static inline void xfs_ifunlock(xfs_inode_t *ip)
381{
382 complete(&ip->i_flush);
383}
384
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386
387
388#define XFS_IRECLAIM 0x0001
389#define XFS_ISTALE 0x0002
390#define XFS_IRECLAIMABLE 0x0004
391#define XFS_INEW 0x0008
392#define XFS_IFILESTREAM 0x0010
393#define XFS_ITRUNCATED 0x0020
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399
400#define XFS_IOLOCK_EXCL (1<<0)
401#define XFS_IOLOCK_SHARED (1<<1)
402#define XFS_ILOCK_EXCL (1<<2)
403#define XFS_ILOCK_SHARED (1<<3)
404#define XFS_IUNLOCK_NONOTIFY (1<<4)
405
406#define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
407 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
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425
426#define XFS_LOCK_PARENT 1
427#define XFS_LOCK_INUMORDER 2
428
429#define XFS_IOLOCK_SHIFT 16
430#define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
431
432#define XFS_ILOCK_SHIFT 24
433#define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
434
435#define XFS_IOLOCK_DEP_MASK 0x00ff0000
436#define XFS_ILOCK_DEP_MASK 0xff000000
437#define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
438
439#define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
440#define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
441
442
443
444
445#define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
446#define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
447#define XFS_IFLUSH_SYNC 3
448#define XFS_IFLUSH_ASYNC 4
449#define XFS_IFLUSH_DELWRI 5
450#define XFS_IFLUSH_ASYNC_NOBLOCK 6
451
452
453
454
455#define XFS_ITRUNC_DEFINITE 0x1
456#define XFS_ITRUNC_MAYBE 0x2
457
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461
462
463#define XFS_INHERIT_GID(pip) \
464 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
465 ((pip)->i_d.di_mode & S_ISGID))
466
467
468
469
470int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
471 uint, uint, xfs_inode_t **, xfs_daddr_t);
472void xfs_iput(xfs_inode_t *, uint);
473void xfs_iput_new(xfs_inode_t *, uint);
474void xfs_ilock(xfs_inode_t *, uint);
475int xfs_ilock_nowait(xfs_inode_t *, uint);
476void xfs_iunlock(xfs_inode_t *, uint);
477void xfs_ilock_demote(xfs_inode_t *, uint);
478int xfs_isilocked(xfs_inode_t *, uint);
479uint xfs_ilock_map_shared(xfs_inode_t *);
480void xfs_iunlock_map_shared(xfs_inode_t *, uint);
481void xfs_ireclaim(xfs_inode_t *);
482
483
484
485
486int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
487 xfs_nlink_t, xfs_dev_t, cred_t *, xfs_prid_t,
488 int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
489
490uint xfs_ip2xflags(struct xfs_inode *);
491uint xfs_dic2xflags(struct xfs_dinode *);
492int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
493 struct xfs_bmap_free *);
494int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
495int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
496 xfs_fsize_t, int, int);
497int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
498
499void xfs_iext_realloc(xfs_inode_t *, int, int);
500void xfs_ipin(xfs_inode_t *);
501void xfs_iunpin(xfs_inode_t *);
502int xfs_iflush(xfs_inode_t *, uint);
503void xfs_ichgtime(xfs_inode_t *, int);
504void xfs_lock_inodes(xfs_inode_t **, int, uint);
505void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
506
507void xfs_synchronize_times(xfs_inode_t *);
508void xfs_mark_inode_dirty_sync(xfs_inode_t *);
509
510#if defined(XFS_INODE_TRACE)
511
512#define INODE_TRACE_SIZE 16
513#define INODE_KTRACE_ENTRY 1
514#define INODE_KTRACE_EXIT 2
515#define INODE_KTRACE_HOLD 3
516#define INODE_KTRACE_REF 4
517#define INODE_KTRACE_RELE 5
518
519extern void _xfs_itrace_entry(struct xfs_inode *, const char *, inst_t *);
520extern void _xfs_itrace_exit(struct xfs_inode *, const char *, inst_t *);
521extern void xfs_itrace_hold(struct xfs_inode *, char *, int, inst_t *);
522extern void _xfs_itrace_ref(struct xfs_inode *, char *, int, inst_t *);
523extern void xfs_itrace_rele(struct xfs_inode *, char *, int, inst_t *);
524#define xfs_itrace_entry(ip) \
525 _xfs_itrace_entry(ip, __func__, (inst_t *)__return_address)
526#define xfs_itrace_exit(ip) \
527 _xfs_itrace_exit(ip, __func__, (inst_t *)__return_address)
528#define xfs_itrace_exit_tag(ip, tag) \
529 _xfs_itrace_exit(ip, tag, (inst_t *)__return_address)
530#define xfs_itrace_ref(ip) \
531 _xfs_itrace_ref(ip, __FILE__, __LINE__, (inst_t *)__return_address)
532
533#else
534#define xfs_itrace_entry(a)
535#define xfs_itrace_exit(a)
536#define xfs_itrace_exit_tag(a, b)
537#define xfs_itrace_hold(a, b, c, d)
538#define xfs_itrace_ref(a)
539#define xfs_itrace_rele(a, b, c, d)
540#endif
541
542#define IHOLD(ip) \
543do { \
544 ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
545 atomic_inc(&(VFS_I(ip)->i_count)); \
546 xfs_itrace_hold((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
547} while (0)
548
549#define IRELE(ip) \
550do { \
551 xfs_itrace_rele((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
552 iput(VFS_I(ip)); \
553} while (0)
554
555#endif
556
557
558
559
560#define XFS_IGET_CREATE 0x1
561#define XFS_IGET_BULKSTAT 0x2
562
563int xfs_inotobp(struct xfs_mount *, struct xfs_trans *,
564 xfs_ino_t, struct xfs_dinode **,
565 struct xfs_buf **, int *, uint);
566int xfs_itobp(struct xfs_mount *, struct xfs_trans *,
567 struct xfs_inode *, struct xfs_dinode **,
568 struct xfs_buf **, uint);
569int xfs_iread(struct xfs_mount *, struct xfs_trans *,
570 struct xfs_inode *, xfs_daddr_t, uint);
571void xfs_dinode_to_disk(struct xfs_dinode *,
572 struct xfs_icdinode *);
573void xfs_idestroy_fork(struct xfs_inode *, int);
574void xfs_idata_realloc(struct xfs_inode *, int, int);
575void xfs_iroot_realloc(struct xfs_inode *, int, int);
576int xfs_iread_extents(struct xfs_trans *, struct xfs_inode *, int);
577int xfs_iextents_copy(struct xfs_inode *, xfs_bmbt_rec_t *, int);
578
579xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
580void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
581 xfs_bmbt_irec_t *);
582void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
583void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
584void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int);
585void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
586void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
587void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
588void xfs_iext_realloc_direct(xfs_ifork_t *, int);
589void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
590void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
591void xfs_iext_destroy(xfs_ifork_t *);
592xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
593xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
594xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
595void xfs_iext_irec_init(xfs_ifork_t *);
596xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
597void xfs_iext_irec_remove(xfs_ifork_t *, int);
598void xfs_iext_irec_compact(xfs_ifork_t *);
599void xfs_iext_irec_compact_pages(xfs_ifork_t *);
600void xfs_iext_irec_compact_full(xfs_ifork_t *);
601void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
602
603#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
604
605#ifdef DEBUG
606void xfs_isize_check(struct xfs_mount *, struct xfs_inode *,
607 xfs_fsize_t);
608#else
609#define xfs_isize_check(mp, ip, isize)
610#endif
611
612#if defined(DEBUG)
613void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
614#else
615#define xfs_inobp_check(mp, bp)
616#endif
617
618extern struct kmem_zone *xfs_ifork_zone;
619extern struct kmem_zone *xfs_inode_zone;
620extern struct kmem_zone *xfs_ili_zone;
621
622#endif
623