2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 #ifndef __XFS_INODE_H__
19 #define __XFS_INODE_H__
27 #define XFS_DATA_FORK 0
28 #define XFS_ATTR_FORK 1
31 * The following xfs_ext_irec_t struct introduces a second (top) level
32 * to the in-core extent allocation scheme. These structs are allocated
33 * in a contiguous block, creating an indirection array where each entry
34 * (irec) contains a pointer to a buffer of in-core extent records which
35 * it manages. Each extent buffer is 4k in size, since 4k is the system
36 * page size on Linux i386 and systems with larger page sizes don't seem
37 * to gain much, if anything, by using their native page size as the
38 * extent buffer size. Also, using 4k extent buffers everywhere provides
39 * a consistent interface for CXFS across different platforms.
41 * There is currently no limit on the number of irec's (extent lists)
42 * allowed, so heavily fragmented files may require an indirection array
43 * which spans multiple system pages of memory. The number of extents
44 * which would require this amount of contiguous memory is very large
45 * and should not cause problems in the foreseeable future. However,
46 * if the memory needed for the contiguous array ever becomes a problem,
47 * it is possible that a third level of indirection may be required.
49 typedef struct xfs_ext_irec
{
50 xfs_bmbt_rec_host_t
*er_extbuf
; /* block of extent records */
51 xfs_extnum_t er_extoff
; /* extent offset in file */
52 xfs_extnum_t er_extcount
; /* number of extents in page/block */
56 * File incore extent information, present for each of data & attr forks.
58 #define XFS_IEXT_BUFSZ 4096
59 #define XFS_LINEAR_EXTS (XFS_IEXT_BUFSZ / (uint)sizeof(xfs_bmbt_rec_t))
60 #define XFS_INLINE_EXTS 2
61 #define XFS_INLINE_DATA 32
62 typedef struct xfs_ifork
{
63 int if_bytes
; /* bytes in if_u1 */
64 int if_real_bytes
; /* bytes allocated in if_u1 */
65 struct xfs_btree_block
*if_broot
; /* file's incore btree root */
66 short if_broot_bytes
; /* bytes allocated for root */
67 unsigned char if_flags
; /* per-fork flags */
68 unsigned char if_ext_max
; /* max # of extent records */
69 xfs_extnum_t if_lastex
; /* last if_extents used */
71 xfs_bmbt_rec_host_t
*if_extents
;/* linear map file exts */
72 xfs_ext_irec_t
*if_ext_irec
; /* irec map file exts */
73 char *if_data
; /* inline file data */
76 xfs_bmbt_rec_host_t if_inline_ext
[XFS_INLINE_EXTS
];
77 /* very small file extents */
78 char if_inline_data
[XFS_INLINE_DATA
];
79 /* very small file data */
80 xfs_dev_t if_rdev
; /* dev number if special */
81 uuid_t if_uuid
; /* mount point value */
86 * Inode location information. Stored in the inode and passed to
87 * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
90 xfs_daddr_t im_blkno
; /* starting BB of inode chunk */
91 ushort im_len
; /* length in BBs of inode chunk */
92 ushort im_boffset
; /* inode offset in block in bytes */
96 * This is the xfs in-core inode structure.
97 * Most of the on-disk inode is embedded in the i_d field.
99 * The extent pointers/inline file space, however, are managed
100 * separately. The memory for this information is pointed to by
101 * the if_u1 unions depending on the type of the data.
102 * This is used to linearize the array of extents for fast in-core
103 * access. This is used until the file's number of extents
104 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
105 * are accessed through the buffer cache.
107 * Other state kept in the in-core inode is used for identification,
108 * locking, transactional updating, etc of the inode.
110 * Generally, we do not want to hold the i_rlock while holding the
111 * i_ilock. Hierarchy is i_iolock followed by i_rlock.
113 * xfs_iptr_t contains all the inode fields upto and including the
114 * i_mnext and i_mprev fields, it is used as a marker in the inode
115 * chain off the mount structure by xfs_sync calls.
118 typedef struct xfs_ictimestamp
{
119 __int32_t t_sec
; /* timestamp seconds */
120 __int32_t t_nsec
; /* timestamp nanoseconds */
124 * NOTE: This structure must be kept identical to struct xfs_dinode
125 * in xfs_dinode.h except for the endianess annotations.
127 typedef struct xfs_icdinode
{
128 __uint16_t di_magic
; /* inode magic # = XFS_DINODE_MAGIC */
129 __uint16_t di_mode
; /* mode and type of file */
130 __int8_t di_version
; /* inode version */
131 __int8_t di_format
; /* format of di_c data */
132 __uint16_t di_onlink
; /* old number of links to file */
133 __uint32_t di_uid
; /* owner's user id */
134 __uint32_t di_gid
; /* owner's group id */
135 __uint32_t di_nlink
; /* number of links to file */
136 __uint16_t di_projid
; /* owner's project id */
137 __uint8_t di_pad
[8]; /* unused, zeroed space */
138 __uint16_t di_flushiter
; /* incremented on flush */
139 xfs_ictimestamp_t di_atime
; /* time last accessed */
140 xfs_ictimestamp_t di_mtime
; /* time last modified */
141 xfs_ictimestamp_t di_ctime
; /* time created/inode modified */
142 xfs_fsize_t di_size
; /* number of bytes in file */
143 xfs_drfsbno_t di_nblocks
; /* # of direct & btree blocks used */
144 xfs_extlen_t di_extsize
; /* basic/minimum extent size for file */
145 xfs_extnum_t di_nextents
; /* number of extents in data fork */
146 xfs_aextnum_t di_anextents
; /* number of extents in attribute fork*/
147 __uint8_t di_forkoff
; /* attr fork offs, <<3 for 64b align */
148 __int8_t di_aformat
; /* format of attr fork's data */
149 __uint32_t di_dmevmask
; /* DMIG event mask */
150 __uint16_t di_dmstate
; /* DMIG state info */
151 __uint16_t di_flags
; /* random flags, XFS_DIFLAG_... */
152 __uint32_t di_gen
; /* generation number */
156 * Flags for xfs_ichgtime().
158 #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
159 #define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
162 * Per-fork incore inode flags.
164 #define XFS_IFINLINE 0x01 /* Inline data is read in */
165 #define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
166 #define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
167 #define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
173 #define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
174 #define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
176 #define XFS_IFORK_PTR(ip,w) \
177 ((w) == XFS_DATA_FORK ? \
180 #define XFS_IFORK_DSIZE(ip) \
182 XFS_IFORK_BOFF(ip) : \
183 XFS_LITINO((ip)->i_mount))
184 #define XFS_IFORK_ASIZE(ip) \
186 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \
188 #define XFS_IFORK_SIZE(ip,w) \
189 ((w) == XFS_DATA_FORK ? \
190 XFS_IFORK_DSIZE(ip) : \
192 #define XFS_IFORK_FORMAT(ip,w) \
193 ((w) == XFS_DATA_FORK ? \
194 (ip)->i_d.di_format : \
195 (ip)->i_d.di_aformat)
196 #define XFS_IFORK_FMT_SET(ip,w,n) \
197 ((w) == XFS_DATA_FORK ? \
198 ((ip)->i_d.di_format = (n)) : \
199 ((ip)->i_d.di_aformat = (n)))
200 #define XFS_IFORK_NEXTENTS(ip,w) \
201 ((w) == XFS_DATA_FORK ? \
202 (ip)->i_d.di_nextents : \
203 (ip)->i_d.di_anextents)
204 #define XFS_IFORK_NEXT_SET(ip,w,n) \
205 ((w) == XFS_DATA_FORK ? \
206 ((ip)->i_d.di_nextents = (n)) : \
207 ((ip)->i_d.di_anextents = (n)))
217 struct xfs_bmap_free
;
218 struct xfs_bmbt_irec
;
219 struct xfs_inode_log_item
;
224 #if defined(XFS_ILOCK_TRACE)
225 #define XFS_ILOCK_KTRACE_SIZE 32
226 extern void xfs_ilock_trace(struct xfs_inode
*, int, unsigned int, inst_t
*);
228 #define xfs_ilock_trace(i,n,f,ra)
231 typedef struct dm_attrs_s
{
232 __uint32_t da_dmevmask
; /* DMIG event mask */
233 __uint16_t da_dmstate
; /* DMIG state info */
234 __uint16_t da_pad
; /* DMIG extra padding */
237 typedef struct xfs_inode
{
238 /* Inode linking and identification information. */
239 struct xfs_mount
*i_mount
; /* fs mount struct ptr */
240 struct xfs_dquot
*i_udquot
; /* user dquot */
241 struct xfs_dquot
*i_gdquot
; /* group dquot */
243 /* Inode location stuff */
244 xfs_ino_t i_ino
; /* inode number (agno/agino)*/
245 struct xfs_imap i_imap
; /* location for xfs_imap() */
247 /* Extent information. */
248 xfs_ifork_t
*i_afp
; /* attribute fork pointer */
249 xfs_ifork_t i_df
; /* data fork */
251 /* Transaction and locking information. */
252 struct xfs_trans
*i_transp
; /* ptr to owning transaction*/
253 struct xfs_inode_log_item
*i_itemp
; /* logging information */
254 mrlock_t i_lock
; /* inode lock */
255 mrlock_t i_iolock
; /* inode IO lock */
256 struct completion i_flush
; /* inode flush completion q */
257 atomic_t i_pincount
; /* inode pin count */
258 wait_queue_head_t i_ipin_wait
; /* inode pinning wait queue */
259 spinlock_t i_flags_lock
; /* inode i_flags lock */
260 /* Miscellaneous state. */
261 unsigned short i_flags
; /* see defined flags below */
262 unsigned char i_update_core
; /* timestamps/size is dirty */
263 unsigned char i_update_size
; /* di_size field is dirty */
264 unsigned int i_delayed_blks
; /* count of delay alloc blks */
266 xfs_icdinode_t i_d
; /* most of ondisk inode */
268 xfs_fsize_t i_size
; /* in-memory size */
269 xfs_fsize_t i_new_size
; /* size when write completes */
270 atomic_t i_iocount
; /* outstanding I/O count */
273 struct inode i_vnode
; /* embedded VFS inode */
275 /* Trace buffers per inode. */
276 #ifdef XFS_INODE_TRACE
277 struct ktrace
*i_trace
; /* general inode trace */
279 #ifdef XFS_BMAP_TRACE
280 struct ktrace
*i_xtrace
; /* inode extent list trace */
282 #ifdef XFS_BTREE_TRACE
283 struct ktrace
*i_btrace
; /* inode bmap btree trace */
286 struct ktrace
*i_rwtrace
; /* inode read/write trace */
288 #ifdef XFS_ILOCK_TRACE
289 struct ktrace
*i_lock_trace
; /* inode lock/unlock trace */
291 #ifdef XFS_DIR2_TRACE
292 struct ktrace
*i_dir_trace
; /* inode directory trace */
296 #define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
297 (ip)->i_size : (ip)->i_d.di_size;
299 /* Convert from vfs inode to xfs inode */
300 static inline struct xfs_inode
*XFS_I(struct inode
*inode
)
302 return container_of(inode
, struct xfs_inode
, i_vnode
);
305 /* convert from xfs inode to vfs inode */
306 static inline struct inode
*VFS_I(struct xfs_inode
*ip
)
312 * Get rid of a partially initialized inode.
314 * We have to go through destroy_inode to make sure allocations
315 * from init_inode_always like the security data are undone.
317 * We mark the inode bad so that it takes the short cut in
318 * the reclaim path instead of going through the flush path
319 * which doesn't make sense for an inode that has never seen the
322 static inline void xfs_destroy_inode(struct xfs_inode
*ip
)
324 make_bad_inode(VFS_I(ip
));
325 return destroy_inode(VFS_I(ip
));
329 * i_flags helper functions
332 __xfs_iflags_set(xfs_inode_t
*ip
, unsigned short flags
)
334 ip
->i_flags
|= flags
;
338 xfs_iflags_set(xfs_inode_t
*ip
, unsigned short flags
)
340 spin_lock(&ip
->i_flags_lock
);
341 __xfs_iflags_set(ip
, flags
);
342 spin_unlock(&ip
->i_flags_lock
);
346 xfs_iflags_clear(xfs_inode_t
*ip
, unsigned short flags
)
348 spin_lock(&ip
->i_flags_lock
);
349 ip
->i_flags
&= ~flags
;
350 spin_unlock(&ip
->i_flags_lock
);
354 __xfs_iflags_test(xfs_inode_t
*ip
, unsigned short flags
)
356 return (ip
->i_flags
& flags
);
360 xfs_iflags_test(xfs_inode_t
*ip
, unsigned short flags
)
363 spin_lock(&ip
->i_flags_lock
);
364 ret
= __xfs_iflags_test(ip
, flags
);
365 spin_unlock(&ip
->i_flags_lock
);
370 xfs_iflags_test_and_clear(xfs_inode_t
*ip
, unsigned short flags
)
374 spin_lock(&ip
->i_flags_lock
);
375 ret
= ip
->i_flags
& flags
;
377 ip
->i_flags
&= ~flags
;
378 spin_unlock(&ip
->i_flags_lock
);
383 * Manage the i_flush queue embedded in the inode. This completion
384 * queue synchronizes processes attempting to flush the in-core
385 * inode back to disk.
387 static inline void xfs_iflock(xfs_inode_t
*ip
)
389 wait_for_completion(&ip
->i_flush
);
392 static inline int xfs_iflock_nowait(xfs_inode_t
*ip
)
394 return try_wait_for_completion(&ip
->i_flush
);
397 static inline void xfs_ifunlock(xfs_inode_t
*ip
)
399 complete(&ip
->i_flush
);
403 * In-core inode flags.
405 #define XFS_IRECLAIM 0x0001 /* we have started reclaiming this inode */
406 #define XFS_ISTALE 0x0002 /* inode has been staled */
407 #define XFS_IRECLAIMABLE 0x0004 /* inode can be reclaimed */
408 #define XFS_INEW 0x0008 /* inode has just been allocated */
409 #define XFS_IFILESTREAM 0x0010 /* inode is in a filestream directory */
410 #define XFS_ITRUNCATED 0x0020 /* truncated down so flush-on-close */
413 * Flags for inode locking.
414 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
415 * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
417 #define XFS_IOLOCK_EXCL (1<<0)
418 #define XFS_IOLOCK_SHARED (1<<1)
419 #define XFS_ILOCK_EXCL (1<<2)
420 #define XFS_ILOCK_SHARED (1<<3)
421 #define XFS_IUNLOCK_NONOTIFY (1<<4)
423 #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
424 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
427 * Flags for lockdep annotations.
429 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes
430 * (ie directory operations that require locking a directory inode and
431 * an entry inode). The first inode gets locked with this flag so it
432 * gets a lockdep subclass of 1 and the second lock will have a lockdep
435 * XFS_LOCK_INUMORDER - for locking several inodes at the some time
436 * with xfs_lock_inodes(). This flag is used as the starting subclass
437 * and each subsequent lock acquired will increment the subclass by one.
438 * So the first lock acquired will have a lockdep subclass of 2, the
439 * second lock will have a lockdep subclass of 3, and so on. It is
440 * the responsibility of the class builder to shift this to the correct
441 * portion of the lock_mode lockdep mask.
443 #define XFS_LOCK_PARENT 1
444 #define XFS_LOCK_INUMORDER 2
446 #define XFS_IOLOCK_SHIFT 16
447 #define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
449 #define XFS_ILOCK_SHIFT 24
450 #define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
452 #define XFS_IOLOCK_DEP_MASK 0x00ff0000
453 #define XFS_ILOCK_DEP_MASK 0xff000000
454 #define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
456 #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
457 #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
460 * Flags for xfs_iflush()
462 #define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
463 #define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
464 #define XFS_IFLUSH_SYNC 3
465 #define XFS_IFLUSH_ASYNC 4
466 #define XFS_IFLUSH_DELWRI 5
467 #define XFS_IFLUSH_ASYNC_NOBLOCK 6
470 * Flags for xfs_itruncate_start().
472 #define XFS_ITRUNC_DEFINITE 0x1
473 #define XFS_ITRUNC_MAYBE 0x2
476 * For multiple groups support: if S_ISGID bit is set in the parent
477 * directory, group of new file is set to that of the parent, and
478 * new subdirectory gets S_ISGID bit from parent.
480 #define XFS_INHERIT_GID(pip) \
481 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
482 ((pip)->i_d.di_mode & S_ISGID))
485 * xfs_iget.c prototypes.
487 xfs_inode_t
*xfs_inode_incore(struct xfs_mount
*, xfs_ino_t
,
489 int xfs_iget(struct xfs_mount
*, struct xfs_trans
*, xfs_ino_t
,
490 uint
, uint
, xfs_inode_t
**, xfs_daddr_t
);
491 void xfs_iput(xfs_inode_t
*, uint
);
492 void xfs_iput_new(xfs_inode_t
*, uint
);
493 void xfs_ilock(xfs_inode_t
*, uint
);
494 int xfs_ilock_nowait(xfs_inode_t
*, uint
);
495 void xfs_iunlock(xfs_inode_t
*, uint
);
496 void xfs_ilock_demote(xfs_inode_t
*, uint
);
497 int xfs_isilocked(xfs_inode_t
*, uint
);
498 uint
xfs_ilock_map_shared(xfs_inode_t
*);
499 void xfs_iunlock_map_shared(xfs_inode_t
*, uint
);
500 void xfs_ireclaim(xfs_inode_t
*);
503 * xfs_inode.c prototypes.
505 int xfs_ialloc(struct xfs_trans
*, xfs_inode_t
*, mode_t
,
506 xfs_nlink_t
, xfs_dev_t
, struct cred
*, xfs_prid_t
,
507 int, struct xfs_buf
**, boolean_t
*, xfs_inode_t
**);
509 uint
xfs_ip2xflags(struct xfs_inode
*);
510 uint
xfs_dic2xflags(struct xfs_dinode
*);
511 int xfs_ifree(struct xfs_trans
*, xfs_inode_t
*,
512 struct xfs_bmap_free
*);
513 int xfs_itruncate_start(xfs_inode_t
*, uint
, xfs_fsize_t
);
514 int xfs_itruncate_finish(struct xfs_trans
**, xfs_inode_t
*,
515 xfs_fsize_t
, int, int);
516 int xfs_iunlink(struct xfs_trans
*, xfs_inode_t
*);
518 void xfs_iext_realloc(xfs_inode_t
*, int, int);
519 void xfs_ipin(xfs_inode_t
*);
520 void xfs_iunpin(xfs_inode_t
*);
521 int xfs_iflush(xfs_inode_t
*, uint
);
522 void xfs_ichgtime(xfs_inode_t
*, int);
523 xfs_fsize_t
xfs_file_last_byte(xfs_inode_t
*);
524 void xfs_lock_inodes(xfs_inode_t
**, int, uint
);
525 void xfs_lock_two_inodes(xfs_inode_t
*, xfs_inode_t
*, uint
);
527 void xfs_synchronize_atime(xfs_inode_t
*);
528 void xfs_mark_inode_dirty_sync(xfs_inode_t
*);
530 #if defined(XFS_INODE_TRACE)
532 #define INODE_TRACE_SIZE 16 /* number of trace entries */
533 #define INODE_KTRACE_ENTRY 1
534 #define INODE_KTRACE_EXIT 2
535 #define INODE_KTRACE_HOLD 3
536 #define INODE_KTRACE_REF 4
537 #define INODE_KTRACE_RELE 5
539 extern void _xfs_itrace_entry(struct xfs_inode
*, const char *, inst_t
*);
540 extern void _xfs_itrace_exit(struct xfs_inode
*, const char *, inst_t
*);
541 extern void xfs_itrace_hold(struct xfs_inode
*, char *, int, inst_t
*);
542 extern void _xfs_itrace_ref(struct xfs_inode
*, char *, int, inst_t
*);
543 extern void xfs_itrace_rele(struct xfs_inode
*, char *, int, inst_t
*);
544 #define xfs_itrace_entry(ip) \
545 _xfs_itrace_entry(ip, __func__, (inst_t *)__return_address)
546 #define xfs_itrace_exit(ip) \
547 _xfs_itrace_exit(ip, __func__, (inst_t *)__return_address)
548 #define xfs_itrace_exit_tag(ip, tag) \
549 _xfs_itrace_exit(ip, tag, (inst_t *)__return_address)
550 #define xfs_itrace_ref(ip) \
551 _xfs_itrace_ref(ip, __FILE__, __LINE__, (inst_t *)__return_address)
554 #define xfs_itrace_entry(a)
555 #define xfs_itrace_exit(a)
556 #define xfs_itrace_exit_tag(a, b)
557 #define xfs_itrace_hold(a, b, c, d)
558 #define xfs_itrace_ref(a)
559 #define xfs_itrace_rele(a, b, c, d)
564 ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
565 atomic_inc(&(VFS_I(ip)->i_count)); \
566 xfs_itrace_hold((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
571 xfs_itrace_rele((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
575 #endif /* __KERNEL__ */
578 * Flags for xfs_iget()
580 #define XFS_IGET_CREATE 0x1
581 #define XFS_IGET_BULKSTAT 0x2
583 int xfs_inotobp(struct xfs_mount
*, struct xfs_trans
*,
584 xfs_ino_t
, struct xfs_dinode
**,
585 struct xfs_buf
**, int *, uint
);
586 int xfs_itobp(struct xfs_mount
*, struct xfs_trans
*,
587 struct xfs_inode
*, struct xfs_dinode
**,
588 struct xfs_buf
**, uint
);
589 int xfs_iread(struct xfs_mount
*, struct xfs_trans
*,
590 struct xfs_inode
*, xfs_daddr_t
, uint
);
591 void xfs_dinode_from_disk(struct xfs_icdinode
*,
592 struct xfs_dinode
*);
593 void xfs_dinode_to_disk(struct xfs_dinode
*,
594 struct xfs_icdinode
*);
595 void xfs_idestroy_fork(struct xfs_inode
*, int);
596 void xfs_idata_realloc(struct xfs_inode
*, int, int);
597 void xfs_iroot_realloc(struct xfs_inode
*, int, int);
598 int xfs_iread_extents(struct xfs_trans
*, struct xfs_inode
*, int);
599 int xfs_iextents_copy(struct xfs_inode
*, xfs_bmbt_rec_t
*, int);
601 xfs_bmbt_rec_host_t
*xfs_iext_get_ext(xfs_ifork_t
*, xfs_extnum_t
);
602 void xfs_iext_insert(xfs_ifork_t
*, xfs_extnum_t
, xfs_extnum_t
,
604 void xfs_iext_add(xfs_ifork_t
*, xfs_extnum_t
, int);
605 void xfs_iext_add_indirect_multi(xfs_ifork_t
*, int, xfs_extnum_t
, int);
606 void xfs_iext_remove(xfs_ifork_t
*, xfs_extnum_t
, int);
607 void xfs_iext_remove_inline(xfs_ifork_t
*, xfs_extnum_t
, int);
608 void xfs_iext_remove_direct(xfs_ifork_t
*, xfs_extnum_t
, int);
609 void xfs_iext_remove_indirect(xfs_ifork_t
*, xfs_extnum_t
, int);
610 void xfs_iext_realloc_direct(xfs_ifork_t
*, int);
611 void xfs_iext_realloc_indirect(xfs_ifork_t
*, int);
612 void xfs_iext_indirect_to_direct(xfs_ifork_t
*);
613 void xfs_iext_direct_to_inline(xfs_ifork_t
*, xfs_extnum_t
);
614 void xfs_iext_inline_to_direct(xfs_ifork_t
*, int);
615 void xfs_iext_destroy(xfs_ifork_t
*);
616 xfs_bmbt_rec_host_t
*xfs_iext_bno_to_ext(xfs_ifork_t
*, xfs_fileoff_t
, int *);
617 xfs_ext_irec_t
*xfs_iext_bno_to_irec(xfs_ifork_t
*, xfs_fileoff_t
, int *);
618 xfs_ext_irec_t
*xfs_iext_idx_to_irec(xfs_ifork_t
*, xfs_extnum_t
*, int *, int);
619 void xfs_iext_irec_init(xfs_ifork_t
*);
620 xfs_ext_irec_t
*xfs_iext_irec_new(xfs_ifork_t
*, int);
621 void xfs_iext_irec_remove(xfs_ifork_t
*, int);
622 void xfs_iext_irec_compact(xfs_ifork_t
*);
623 void xfs_iext_irec_compact_pages(xfs_ifork_t
*);
624 void xfs_iext_irec_compact_full(xfs_ifork_t
*);
625 void xfs_iext_irec_update_extoffs(xfs_ifork_t
*, int, int);
627 #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
630 void xfs_isize_check(struct xfs_mount
*, struct xfs_inode
*,
633 #define xfs_isize_check(mp, ip, isize)
637 void xfs_inobp_check(struct xfs_mount
*, struct xfs_buf
*);
639 #define xfs_inobp_check(mp, bp)
642 extern struct kmem_zone
*xfs_ifork_zone
;
643 extern struct kmem_zone
*xfs_inode_zone
;
644 extern struct kmem_zone
*xfs_ili_zone
;
646 #endif /* __XFS_INODE_H__ */