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__
22 struct xfs_dinode_core
;
28 #define XFS_DATA_FORK 0
29 #define XFS_ATTR_FORK 1
32 * The following xfs_ext_irec_t struct introduces a second (top) level
33 * to the in-core extent allocation scheme. These structs are allocated
34 * in a contiguous block, creating an indirection array where each entry
35 * (irec) contains a pointer to a buffer of in-core extent records which
36 * it manages. Each extent buffer is 4k in size, since 4k is the system
37 * page size on Linux i386 and systems with larger page sizes don't seem
38 * to gain much, if anything, by using their native page size as the
39 * extent buffer size. Also, using 4k extent buffers everywhere provides
40 * a consistent interface for CXFS across different platforms.
42 * There is currently no limit on the number of irec's (extent lists)
43 * allowed, so heavily fragmented files may require an indirection array
44 * which spans multiple system pages of memory. The number of extents
45 * which would require this amount of contiguous memory is very large
46 * and should not cause problems in the foreseeable future. However,
47 * if the memory needed for the contiguous array ever becomes a problem,
48 * it is possible that a third level of indirection may be required.
50 typedef struct xfs_ext_irec
{
51 xfs_bmbt_rec_host_t
*er_extbuf
; /* block of extent records */
52 xfs_extnum_t er_extoff
; /* extent offset in file */
53 xfs_extnum_t er_extcount
; /* number of extents in page/block */
57 * File incore extent information, present for each of data & attr forks.
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
63 typedef struct xfs_ifork
{
64 int if_bytes
; /* bytes in if_u1 */
65 int if_real_bytes
; /* bytes allocated in if_u1 */
66 struct xfs_btree_block
*if_broot
; /* file's incore btree root */
67 short if_broot_bytes
; /* bytes allocated for root */
68 unsigned char if_flags
; /* per-fork flags */
69 unsigned char if_ext_max
; /* max # of extent records */
70 xfs_extnum_t if_lastex
; /* last if_extents used */
72 xfs_bmbt_rec_host_t
*if_extents
;/* linear map file exts */
73 xfs_ext_irec_t
*if_ext_irec
; /* irec map file exts */
74 char *if_data
; /* inline file data */
77 xfs_bmbt_rec_host_t if_inline_ext
[XFS_INLINE_EXTS
];
78 /* very small file extents */
79 char if_inline_data
[XFS_INLINE_DATA
];
80 /* very small file data */
81 xfs_dev_t if_rdev
; /* dev number if special */
82 uuid_t if_uuid
; /* mount point value */
87 * This is the xfs in-core inode structure.
88 * Most of the on-disk inode is embedded in the i_d field.
90 * The extent pointers/inline file space, however, are managed
91 * separately. The memory for this information is pointed to by
92 * the if_u1 unions depending on the type of the data.
93 * This is used to linearize the array of extents for fast in-core
94 * access. This is used until the file's number of extents
95 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
96 * are accessed through the buffer cache.
98 * Other state kept in the in-core inode is used for identification,
99 * locking, transactional updating, etc of the inode.
101 * Generally, we do not want to hold the i_rlock while holding the
102 * i_ilock. Hierarchy is i_iolock followed by i_rlock.
104 * xfs_iptr_t contains all the inode fields upto and including the
105 * i_mnext and i_mprev fields, it is used as a marker in the inode
106 * chain off the mount structure by xfs_sync calls.
109 typedef struct xfs_ictimestamp
{
110 __int32_t t_sec
; /* timestamp seconds */
111 __int32_t t_nsec
; /* timestamp nanoseconds */
115 * NOTE: This structure must be kept identical to struct xfs_dinode_core
116 * in xfs_dinode.h except for the endianess annotations.
118 typedef struct xfs_icdinode
{
119 __uint16_t di_magic
; /* inode magic # = XFS_DINODE_MAGIC */
120 __uint16_t di_mode
; /* mode and type of file */
121 __int8_t di_version
; /* inode version */
122 __int8_t di_format
; /* format of di_c data */
123 __uint16_t di_onlink
; /* old number of links to file */
124 __uint32_t di_uid
; /* owner's user id */
125 __uint32_t di_gid
; /* owner's group id */
126 __uint32_t di_nlink
; /* number of links to file */
127 __uint16_t di_projid
; /* owner's project id */
128 __uint8_t di_pad
[8]; /* unused, zeroed space */
129 __uint16_t di_flushiter
; /* incremented on flush */
130 xfs_ictimestamp_t di_atime
; /* time last accessed */
131 xfs_ictimestamp_t di_mtime
; /* time last modified */
132 xfs_ictimestamp_t di_ctime
; /* time created/inode modified */
133 xfs_fsize_t di_size
; /* number of bytes in file */
134 xfs_drfsbno_t di_nblocks
; /* # of direct & btree blocks used */
135 xfs_extlen_t di_extsize
; /* basic/minimum extent size for file */
136 xfs_extnum_t di_nextents
; /* number of extents in data fork */
137 xfs_aextnum_t di_anextents
; /* number of extents in attribute fork*/
138 __uint8_t di_forkoff
; /* attr fork offs, <<3 for 64b align */
139 __int8_t di_aformat
; /* format of attr fork's data */
140 __uint32_t di_dmevmask
; /* DMIG event mask */
141 __uint16_t di_dmstate
; /* DMIG state info */
142 __uint16_t di_flags
; /* random flags, XFS_DIFLAG_... */
143 __uint32_t di_gen
; /* generation number */
147 * Flags for xfs_ichgtime().
149 #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
150 #define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
153 * Per-fork incore inode flags.
155 #define XFS_IFINLINE 0x01 /* Inline data is read in */
156 #define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
157 #define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
158 #define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
161 * Flags for xfs_itobp(), xfs_imap() and xfs_dilocate().
163 #define XFS_IMAP_LOOKUP 0x1
164 #define XFS_IMAP_BULKSTAT 0x2
170 #define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
171 #define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
173 #define XFS_IFORK_PTR(ip,w) \
174 ((w) == XFS_DATA_FORK ? \
177 #define XFS_IFORK_DSIZE(ip) \
179 XFS_IFORK_BOFF(ip) : \
180 XFS_LITINO((ip)->i_mount))
181 #define XFS_IFORK_ASIZE(ip) \
183 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \
185 #define XFS_IFORK_SIZE(ip,w) \
186 ((w) == XFS_DATA_FORK ? \
187 XFS_IFORK_DSIZE(ip) : \
189 #define XFS_IFORK_FORMAT(ip,w) \
190 ((w) == XFS_DATA_FORK ? \
191 (ip)->i_d.di_format : \
192 (ip)->i_d.di_aformat)
193 #define XFS_IFORK_FMT_SET(ip,w,n) \
194 ((w) == XFS_DATA_FORK ? \
195 ((ip)->i_d.di_format = (n)) : \
196 ((ip)->i_d.di_aformat = (n)))
197 #define XFS_IFORK_NEXTENTS(ip,w) \
198 ((w) == XFS_DATA_FORK ? \
199 (ip)->i_d.di_nextents : \
200 (ip)->i_d.di_anextents)
201 #define XFS_IFORK_NEXT_SET(ip,w,n) \
202 ((w) == XFS_DATA_FORK ? \
203 ((ip)->i_d.di_nextents = (n)) : \
204 ((ip)->i_d.di_anextents = (n)))
214 struct xfs_bmap_free
;
215 struct xfs_bmbt_irec
;
216 struct xfs_inode_log_item
;
221 #if defined(XFS_ILOCK_TRACE)
222 #define XFS_ILOCK_KTRACE_SIZE 32
223 extern ktrace_t
*xfs_ilock_trace_buf
;
224 extern void xfs_ilock_trace(struct xfs_inode
*, int, unsigned int, inst_t
*);
226 #define xfs_ilock_trace(i,n,f,ra)
229 typedef struct dm_attrs_s
{
230 __uint32_t da_dmevmask
; /* DMIG event mask */
231 __uint16_t da_dmstate
; /* DMIG state info */
232 __uint16_t da_pad
; /* DMIG extra padding */
235 typedef struct xfs_inode
{
236 /* Inode linking and identification information. */
237 struct xfs_mount
*i_mount
; /* fs mount struct ptr */
238 struct xfs_dquot
*i_udquot
; /* user dquot */
239 struct xfs_dquot
*i_gdquot
; /* group dquot */
241 /* Inode location stuff */
242 xfs_ino_t i_ino
; /* inode number (agno/agino)*/
243 xfs_daddr_t i_blkno
; /* blkno of inode buffer */
244 ushort i_len
; /* len of inode buffer */
245 ushort i_boffset
; /* off of inode in buffer */
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_gen
; /* generation count */
265 unsigned int i_delayed_blks
; /* count of delay alloc blks */
267 xfs_icdinode_t i_d
; /* most of ondisk inode */
269 xfs_fsize_t i_size
; /* in-memory size */
270 xfs_fsize_t i_new_size
; /* size when write completes */
271 atomic_t i_iocount
; /* outstanding I/O count */
274 struct inode i_vnode
; /* embedded VFS inode */
276 /* Trace buffers per inode. */
277 #ifdef XFS_INODE_TRACE
278 struct ktrace
*i_trace
; /* general inode trace */
280 #ifdef XFS_BMAP_TRACE
281 struct ktrace
*i_xtrace
; /* inode extent list trace */
283 #ifdef XFS_BTREE_TRACE
284 struct ktrace
*i_btrace
; /* inode bmap btree trace */
287 struct ktrace
*i_rwtrace
; /* inode read/write trace */
289 #ifdef XFS_ILOCK_TRACE
290 struct ktrace
*i_lock_trace
; /* inode lock/unlock trace */
292 #ifdef XFS_DIR2_TRACE
293 struct ktrace
*i_dir_trace
; /* inode directory trace */
297 #define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
298 (ip)->i_size : (ip)->i_d.di_size;
300 /* Convert from vfs inode to xfs inode */
301 static inline struct xfs_inode
*XFS_I(struct inode
*inode
)
303 return container_of(inode
, struct xfs_inode
, i_vnode
);
306 /* convert from xfs inode to vfs inode */
307 static inline struct inode
*VFS_I(struct xfs_inode
*ip
)
313 * i_flags helper functions
316 __xfs_iflags_set(xfs_inode_t
*ip
, unsigned short flags
)
318 ip
->i_flags
|= flags
;
322 xfs_iflags_set(xfs_inode_t
*ip
, unsigned short flags
)
324 spin_lock(&ip
->i_flags_lock
);
325 __xfs_iflags_set(ip
, flags
);
326 spin_unlock(&ip
->i_flags_lock
);
330 xfs_iflags_clear(xfs_inode_t
*ip
, unsigned short flags
)
332 spin_lock(&ip
->i_flags_lock
);
333 ip
->i_flags
&= ~flags
;
334 spin_unlock(&ip
->i_flags_lock
);
338 __xfs_iflags_test(xfs_inode_t
*ip
, unsigned short flags
)
340 return (ip
->i_flags
& flags
);
344 xfs_iflags_test(xfs_inode_t
*ip
, unsigned short flags
)
347 spin_lock(&ip
->i_flags_lock
);
348 ret
= __xfs_iflags_test(ip
, flags
);
349 spin_unlock(&ip
->i_flags_lock
);
354 xfs_iflags_test_and_clear(xfs_inode_t
*ip
, unsigned short flags
)
358 spin_lock(&ip
->i_flags_lock
);
359 ret
= ip
->i_flags
& flags
;
361 ip
->i_flags
&= ~flags
;
362 spin_unlock(&ip
->i_flags_lock
);
367 * Manage the i_flush queue embedded in the inode. This completion
368 * queue synchronizes processes attempting to flush the in-core
369 * inode back to disk.
371 static inline void xfs_iflock(xfs_inode_t
*ip
)
373 wait_for_completion(&ip
->i_flush
);
376 static inline int xfs_iflock_nowait(xfs_inode_t
*ip
)
378 return try_wait_for_completion(&ip
->i_flush
);
381 static inline void xfs_ifunlock(xfs_inode_t
*ip
)
383 complete(&ip
->i_flush
);
387 * In-core inode flags.
389 #define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */
390 #define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */
391 #define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */
392 #define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */
393 #define XFS_ISTALE 0x0010 /* inode has been staled */
394 #define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */
395 #define XFS_INEW 0x0040
396 #define XFS_IFILESTREAM 0x0080 /* inode is in a filestream directory */
397 #define XFS_IMODIFIED 0x0100 /* XFS inode state possibly differs */
398 /* to the Linux inode state. */
399 #define XFS_ITRUNCATED 0x0200 /* truncated down so flush-on-close */
402 * Flags for inode locking.
403 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
404 * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
406 #define XFS_IOLOCK_EXCL (1<<0)
407 #define XFS_IOLOCK_SHARED (1<<1)
408 #define XFS_ILOCK_EXCL (1<<2)
409 #define XFS_ILOCK_SHARED (1<<3)
410 #define XFS_IUNLOCK_NONOTIFY (1<<4)
412 #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
413 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
416 * Flags for lockdep annotations.
418 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes
419 * (ie directory operations that require locking a directory inode and
420 * an entry inode). The first inode gets locked with this flag so it
421 * gets a lockdep subclass of 1 and the second lock will have a lockdep
424 * XFS_LOCK_INUMORDER - for locking several inodes at the some time
425 * with xfs_lock_inodes(). This flag is used as the starting subclass
426 * and each subsequent lock acquired will increment the subclass by one.
427 * So the first lock acquired will have a lockdep subclass of 2, the
428 * second lock will have a lockdep subclass of 3, and so on. It is
429 * the responsibility of the class builder to shift this to the correct
430 * portion of the lock_mode lockdep mask.
432 #define XFS_LOCK_PARENT 1
433 #define XFS_LOCK_INUMORDER 2
435 #define XFS_IOLOCK_SHIFT 16
436 #define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
438 #define XFS_ILOCK_SHIFT 24
439 #define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
441 #define XFS_IOLOCK_DEP_MASK 0x00ff0000
442 #define XFS_ILOCK_DEP_MASK 0xff000000
443 #define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
445 #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
446 #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
449 * Flags for xfs_iflush()
451 #define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
452 #define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
453 #define XFS_IFLUSH_SYNC 3
454 #define XFS_IFLUSH_ASYNC 4
455 #define XFS_IFLUSH_DELWRI 5
456 #define XFS_IFLUSH_ASYNC_NOBLOCK 6
459 * Flags for xfs_itruncate_start().
461 #define XFS_ITRUNC_DEFINITE 0x1
462 #define XFS_ITRUNC_MAYBE 0x2
465 * For multiple groups support: if S_ISGID bit is set in the parent
466 * directory, group of new file is set to that of the parent, and
467 * new subdirectory gets S_ISGID bit from parent.
469 #define XFS_INHERIT_GID(pip) \
470 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
471 ((pip)->i_d.di_mode & S_ISGID))
474 * Flags for xfs_iget()
476 #define XFS_IGET_CREATE 0x1
477 #define XFS_IGET_BULKSTAT 0x2
480 * xfs_iget.c prototypes.
482 void xfs_ihash_init(struct xfs_mount
*);
483 void xfs_ihash_free(struct xfs_mount
*);
484 xfs_inode_t
*xfs_inode_incore(struct xfs_mount
*, xfs_ino_t
,
486 int xfs_iget(struct xfs_mount
*, struct xfs_trans
*, xfs_ino_t
,
487 uint
, uint
, xfs_inode_t
**, xfs_daddr_t
);
488 void xfs_iput(xfs_inode_t
*, uint
);
489 void xfs_iput_new(xfs_inode_t
*, uint
);
490 void xfs_ilock(xfs_inode_t
*, uint
);
491 int xfs_ilock_nowait(xfs_inode_t
*, uint
);
492 void xfs_iunlock(xfs_inode_t
*, uint
);
493 void xfs_ilock_demote(xfs_inode_t
*, uint
);
494 int xfs_isilocked(xfs_inode_t
*, uint
);
495 uint
xfs_ilock_map_shared(xfs_inode_t
*);
496 void xfs_iunlock_map_shared(xfs_inode_t
*, uint
);
497 void xfs_ireclaim(xfs_inode_t
*);
500 * xfs_inode.c prototypes.
502 int xfs_iread(struct xfs_mount
*, struct xfs_trans
*, xfs_ino_t
,
503 xfs_inode_t
**, xfs_daddr_t
, uint
);
504 int xfs_ialloc(struct xfs_trans
*, xfs_inode_t
*, mode_t
,
505 xfs_nlink_t
, xfs_dev_t
, struct cred
*, xfs_prid_t
,
506 int, struct xfs_buf
**, boolean_t
*, xfs_inode_t
**);
508 uint
xfs_ip2xflags(struct xfs_inode
*);
509 uint
xfs_dic2xflags(struct xfs_dinode
*);
510 int xfs_ifree(struct xfs_trans
*, xfs_inode_t
*,
511 struct xfs_bmap_free
*);
512 int xfs_itruncate_start(xfs_inode_t
*, uint
, xfs_fsize_t
);
513 int xfs_itruncate_finish(struct xfs_trans
**, xfs_inode_t
*,
514 xfs_fsize_t
, int, int);
515 int xfs_iunlink(struct xfs_trans
*, xfs_inode_t
*);
517 struct xfs_inode
* xfs_inode_alloc(struct xfs_mount
*, xfs_ino_t
);
518 void xfs_idestroy(xfs_inode_t
*);
519 void xfs_iextract(xfs_inode_t
*);
520 void xfs_iext_realloc(xfs_inode_t
*, int, int);
521 void xfs_ipin(xfs_inode_t
*);
522 void xfs_iunpin(xfs_inode_t
*);
523 int xfs_iflush(xfs_inode_t
*, uint
);
524 void xfs_ichgtime(xfs_inode_t
*, int);
525 xfs_fsize_t
xfs_file_last_byte(xfs_inode_t
*);
526 void xfs_lock_inodes(xfs_inode_t
**, int, uint
);
527 void xfs_lock_two_inodes(xfs_inode_t
*, xfs_inode_t
*, uint
);
529 void xfs_synchronize_atime(xfs_inode_t
*);
530 void xfs_mark_inode_dirty_sync(xfs_inode_t
*);
532 #endif /* __KERNEL__ */
534 int xfs_itobp(struct xfs_mount
*, struct xfs_trans
*,
535 struct xfs_inode
*, struct xfs_dinode
**,
536 struct xfs_buf
**, xfs_daddr_t
, uint
, uint
);
537 void xfs_dinode_from_disk(struct xfs_icdinode
*,
538 struct xfs_dinode_core
*);
539 void xfs_dinode_to_disk(struct xfs_dinode_core
*,
540 struct xfs_icdinode
*);
541 void xfs_idestroy_fork(struct xfs_inode
*, int);
542 void xfs_idata_realloc(struct xfs_inode
*, int, int);
543 void xfs_iroot_realloc(struct xfs_inode
*, int, int);
544 int xfs_iread_extents(struct xfs_trans
*, struct xfs_inode
*, int);
545 int xfs_iextents_copy(struct xfs_inode
*, xfs_bmbt_rec_t
*, int);
547 xfs_bmbt_rec_host_t
*xfs_iext_get_ext(xfs_ifork_t
*, xfs_extnum_t
);
548 void xfs_iext_insert(xfs_ifork_t
*, xfs_extnum_t
, xfs_extnum_t
,
550 void xfs_iext_add(xfs_ifork_t
*, xfs_extnum_t
, int);
551 void xfs_iext_add_indirect_multi(xfs_ifork_t
*, int, xfs_extnum_t
, int);
552 void xfs_iext_remove(xfs_ifork_t
*, xfs_extnum_t
, int);
553 void xfs_iext_remove_inline(xfs_ifork_t
*, xfs_extnum_t
, int);
554 void xfs_iext_remove_direct(xfs_ifork_t
*, xfs_extnum_t
, int);
555 void xfs_iext_remove_indirect(xfs_ifork_t
*, xfs_extnum_t
, int);
556 void xfs_iext_realloc_direct(xfs_ifork_t
*, int);
557 void xfs_iext_realloc_indirect(xfs_ifork_t
*, int);
558 void xfs_iext_indirect_to_direct(xfs_ifork_t
*);
559 void xfs_iext_direct_to_inline(xfs_ifork_t
*, xfs_extnum_t
);
560 void xfs_iext_inline_to_direct(xfs_ifork_t
*, int);
561 void xfs_iext_destroy(xfs_ifork_t
*);
562 xfs_bmbt_rec_host_t
*xfs_iext_bno_to_ext(xfs_ifork_t
*, xfs_fileoff_t
, int *);
563 xfs_ext_irec_t
*xfs_iext_bno_to_irec(xfs_ifork_t
*, xfs_fileoff_t
, int *);
564 xfs_ext_irec_t
*xfs_iext_idx_to_irec(xfs_ifork_t
*, xfs_extnum_t
*, int *, int);
565 void xfs_iext_irec_init(xfs_ifork_t
*);
566 xfs_ext_irec_t
*xfs_iext_irec_new(xfs_ifork_t
*, int);
567 void xfs_iext_irec_remove(xfs_ifork_t
*, int);
568 void xfs_iext_irec_compact(xfs_ifork_t
*);
569 void xfs_iext_irec_compact_pages(xfs_ifork_t
*);
570 void xfs_iext_irec_compact_full(xfs_ifork_t
*);
571 void xfs_iext_irec_update_extoffs(xfs_ifork_t
*, int, int);
573 #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
576 void xfs_isize_check(struct xfs_mount
*, struct xfs_inode
*,
579 #define xfs_isize_check(mp, ip, isize)
583 void xfs_inobp_check(struct xfs_mount
*, struct xfs_buf
*);
585 #define xfs_inobp_check(mp, bp)
588 extern struct kmem_zone
*xfs_ifork_zone
;
589 extern struct kmem_zone
*xfs_inode_zone
;
590 extern struct kmem_zone
*xfs_ili_zone
;
592 #endif /* __XFS_INODE_H__ */