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__
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 * Inode location information. Stored in the inode and passed to
88 * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
91 xfs_daddr_t im_blkno; /* starting BB of inode chunk */
92 ushort im_len; /* length in BBs of inode chunk */
93 ushort im_boffset; /* inode offset in block in bytes */
97 * This is the xfs in-core inode structure.
98 * Most of the on-disk inode is embedded in the i_d field.
100 * The extent pointers/inline file space, however, are managed
101 * separately. The memory for this information is pointed to by
102 * the if_u1 unions depending on the type of the data.
103 * This is used to linearize the array of extents for fast in-core
104 * access. This is used until the file's number of extents
105 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
106 * are accessed through the buffer cache.
108 * Other state kept in the in-core inode is used for identification,
109 * locking, transactional updating, etc of the inode.
111 * Generally, we do not want to hold the i_rlock while holding the
112 * i_ilock. Hierarchy is i_iolock followed by i_rlock.
114 * xfs_iptr_t contains all the inode fields upto and including the
115 * i_mnext and i_mprev fields, it is used as a marker in the inode
116 * chain off the mount structure by xfs_sync calls.
119 typedef struct xfs_ictimestamp {
120 __int32_t t_sec; /* timestamp seconds */
121 __int32_t t_nsec; /* timestamp nanoseconds */
125 * NOTE: This structure must be kept identical to struct xfs_dinode
126 * in xfs_dinode.h except for the endianness annotations.
128 typedef struct xfs_icdinode {
129 __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */
130 __uint16_t di_mode; /* mode and type of file */
131 __int8_t di_version; /* inode version */
132 __int8_t di_format; /* format of di_c data */
133 __uint16_t di_onlink; /* old number of links to file */
134 __uint32_t di_uid; /* owner's user id */
135 __uint32_t di_gid; /* owner's group id */
136 __uint32_t di_nlink; /* number of links to file */
137 __uint16_t di_projid; /* owner's project id */
138 __uint8_t di_pad[8]; /* unused, zeroed space */
139 __uint16_t di_flushiter; /* incremented on flush */
140 xfs_ictimestamp_t di_atime; /* time last accessed */
141 xfs_ictimestamp_t di_mtime; /* time last modified */
142 xfs_ictimestamp_t di_ctime; /* time created/inode modified */
143 xfs_fsize_t di_size; /* number of bytes in file */
144 xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */
145 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
146 xfs_extnum_t di_nextents; /* number of extents in data fork */
147 xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
148 __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
149 __int8_t di_aformat; /* format of attr fork's data */
150 __uint32_t di_dmevmask; /* DMIG event mask */
151 __uint16_t di_dmstate; /* DMIG state info */
152 __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
153 __uint32_t di_gen; /* generation number */
157 * Flags for xfs_ichgtime().
159 #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
160 #define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
163 * Per-fork incore inode flags.
165 #define XFS_IFINLINE 0x01 /* Inline data is read in */
166 #define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
167 #define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
168 #define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
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))
177 #define XFS_IFORK_PTR(ip,w) \
178 ((w) == XFS_DATA_FORK ? \
181 #define XFS_IFORK_DSIZE(ip) \
183 XFS_IFORK_BOFF(ip) : \
184 XFS_LITINO((ip)->i_mount))
185 #define XFS_IFORK_ASIZE(ip) \
187 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \
189 #define XFS_IFORK_SIZE(ip,w) \
190 ((w) == XFS_DATA_FORK ? \
191 XFS_IFORK_DSIZE(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)))
218 struct xfs_bmap_free;
219 struct xfs_bmbt_irec;
220 struct xfs_inode_log_item;
225 #if defined(XFS_ILOCK_TRACE)
226 #define XFS_ILOCK_KTRACE_SIZE 32
227 extern void xfs_ilock_trace(struct xfs_inode *, int, unsigned int, inst_t *);
229 #define xfs_ilock_trace(i,n,f,ra)
232 typedef struct dm_attrs_s {
233 __uint32_t da_dmevmask; /* DMIG event mask */
234 __uint16_t da_dmstate; /* DMIG state info */
235 __uint16_t da_pad; /* DMIG extra padding */
238 typedef struct xfs_inode {
239 /* Inode linking and identification information. */
240 struct xfs_mount *i_mount; /* fs mount struct ptr */
241 struct xfs_dquot *i_udquot; /* user dquot */
242 struct xfs_dquot *i_gdquot; /* group dquot */
244 /* Inode location stuff */
245 xfs_ino_t i_ino; /* inode number (agno/agino)*/
246 struct xfs_imap i_imap; /* location for xfs_imap() */
248 /* Extent information. */
249 xfs_ifork_t *i_afp; /* attribute fork pointer */
250 xfs_ifork_t i_df; /* data fork */
252 /* Transaction and locking information. */
253 struct xfs_trans *i_transp; /* ptr to owning transaction*/
254 struct xfs_inode_log_item *i_itemp; /* logging information */
255 mrlock_t i_lock; /* inode lock */
256 mrlock_t i_iolock; /* inode IO lock */
257 struct completion i_flush; /* inode flush completion q */
258 atomic_t i_pincount; /* inode pin count */
259 wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
260 spinlock_t i_flags_lock; /* inode i_flags lock */
261 /* Miscellaneous state. */
262 unsigned short i_flags; /* see defined flags below */
263 unsigned char i_update_core; /* timestamps/size is dirty */
264 unsigned char i_update_size; /* di_size field is dirty */
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 #ifdef CONFIG_XFS_POSIX_ACL
277 struct posix_acl *i_acl;
278 struct posix_acl *i_default_acl;
281 /* Trace buffers per inode. */
282 #ifdef XFS_INODE_TRACE
283 struct ktrace *i_trace; /* general inode trace */
285 #ifdef XFS_BMAP_TRACE
286 struct ktrace *i_xtrace; /* inode extent list trace */
288 #ifdef XFS_BTREE_TRACE
289 struct ktrace *i_btrace; /* inode bmap btree trace */
292 struct ktrace *i_rwtrace; /* inode read/write trace */
294 #ifdef XFS_ILOCK_TRACE
295 struct ktrace *i_lock_trace; /* inode lock/unlock trace */
297 #ifdef XFS_DIR2_TRACE
298 struct ktrace *i_dir_trace; /* inode directory trace */
302 #define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
303 (ip)->i_size : (ip)->i_d.di_size;
305 /* Convert from vfs inode to xfs inode */
306 static inline struct xfs_inode *XFS_I(struct inode *inode)
308 return container_of(inode, struct xfs_inode, i_vnode);
311 /* convert from xfs inode to vfs inode */
312 static inline struct inode *VFS_I(struct xfs_inode *ip)
318 * Get rid of a partially initialized inode.
320 * We have to go through destroy_inode to make sure allocations
321 * from init_inode_always like the security data are undone.
323 * We mark the inode bad so that it takes the short cut in
324 * the reclaim path instead of going through the flush path
325 * which doesn't make sense for an inode that has never seen the
328 static inline void xfs_destroy_inode(struct xfs_inode *ip)
330 make_bad_inode(VFS_I(ip));
331 return destroy_inode(VFS_I(ip));
335 * i_flags helper functions
338 __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
340 ip->i_flags |= flags;
344 xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
346 spin_lock(&ip->i_flags_lock);
347 __xfs_iflags_set(ip, flags);
348 spin_unlock(&ip->i_flags_lock);
352 xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
354 spin_lock(&ip->i_flags_lock);
355 ip->i_flags &= ~flags;
356 spin_unlock(&ip->i_flags_lock);
360 __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
362 return (ip->i_flags & flags);
366 xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
369 spin_lock(&ip->i_flags_lock);
370 ret = __xfs_iflags_test(ip, flags);
371 spin_unlock(&ip->i_flags_lock);
376 xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
380 spin_lock(&ip->i_flags_lock);
381 ret = ip->i_flags & flags;
383 ip->i_flags &= ~flags;
384 spin_unlock(&ip->i_flags_lock);
389 * Manage the i_flush queue embedded in the inode. This completion
390 * queue synchronizes processes attempting to flush the in-core
391 * inode back to disk.
393 static inline void xfs_iflock(xfs_inode_t *ip)
395 wait_for_completion(&ip->i_flush);
398 static inline int xfs_iflock_nowait(xfs_inode_t *ip)
400 return try_wait_for_completion(&ip->i_flush);
403 static inline void xfs_ifunlock(xfs_inode_t *ip)
405 complete(&ip->i_flush);
409 * In-core inode flags.
411 #define XFS_IRECLAIM 0x0001 /* we have started reclaiming this inode */
412 #define XFS_ISTALE 0x0002 /* inode has been staled */
413 #define XFS_IRECLAIMABLE 0x0004 /* inode can be reclaimed */
414 #define XFS_INEW 0x0008 /* inode has just been allocated */
415 #define XFS_IFILESTREAM 0x0010 /* inode is in a filestream directory */
416 #define XFS_ITRUNCATED 0x0020 /* truncated down so flush-on-close */
419 * Flags for inode locking.
420 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
421 * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
423 #define XFS_IOLOCK_EXCL (1<<0)
424 #define XFS_IOLOCK_SHARED (1<<1)
425 #define XFS_ILOCK_EXCL (1<<2)
426 #define XFS_ILOCK_SHARED (1<<3)
427 #define XFS_IUNLOCK_NONOTIFY (1<<4)
429 #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
430 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
433 * Flags for lockdep annotations.
435 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes
436 * (ie directory operations that require locking a directory inode and
437 * an entry inode). The first inode gets locked with this flag so it
438 * gets a lockdep subclass of 1 and the second lock will have a lockdep
441 * XFS_LOCK_INUMORDER - for locking several inodes at the some time
442 * with xfs_lock_inodes(). This flag is used as the starting subclass
443 * and each subsequent lock acquired will increment the subclass by one.
444 * So the first lock acquired will have a lockdep subclass of 2, the
445 * second lock will have a lockdep subclass of 3, and so on. It is
446 * the responsibility of the class builder to shift this to the correct
447 * portion of the lock_mode lockdep mask.
449 #define XFS_LOCK_PARENT 1
450 #define XFS_LOCK_INUMORDER 2
452 #define XFS_IOLOCK_SHIFT 16
453 #define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
455 #define XFS_ILOCK_SHIFT 24
456 #define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
458 #define XFS_IOLOCK_DEP_MASK 0x00ff0000
459 #define XFS_ILOCK_DEP_MASK 0xff000000
460 #define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
462 #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
463 #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
466 * Flags for xfs_iflush()
468 #define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
469 #define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
470 #define XFS_IFLUSH_SYNC 3
471 #define XFS_IFLUSH_ASYNC 4
472 #define XFS_IFLUSH_DELWRI 5
473 #define XFS_IFLUSH_ASYNC_NOBLOCK 6
476 * Flags for xfs_itruncate_start().
478 #define XFS_ITRUNC_DEFINITE 0x1
479 #define XFS_ITRUNC_MAYBE 0x2
482 * For multiple groups support: if S_ISGID bit is set in the parent
483 * directory, group of new file is set to that of the parent, and
484 * new subdirectory gets S_ISGID bit from parent.
486 #define XFS_INHERIT_GID(pip) \
487 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
488 ((pip)->i_d.di_mode & S_ISGID))
491 * xfs_iget.c prototypes.
493 xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
495 int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
496 uint, uint, xfs_inode_t **, xfs_daddr_t);
497 void xfs_iput(xfs_inode_t *, uint);
498 void xfs_iput_new(xfs_inode_t *, uint);
499 void xfs_ilock(xfs_inode_t *, uint);
500 int xfs_ilock_nowait(xfs_inode_t *, uint);
501 void xfs_iunlock(xfs_inode_t *, uint);
502 void xfs_ilock_demote(xfs_inode_t *, uint);
503 int xfs_isilocked(xfs_inode_t *, uint);
504 uint xfs_ilock_map_shared(xfs_inode_t *);
505 void xfs_iunlock_map_shared(xfs_inode_t *, uint);
506 void xfs_ireclaim(xfs_inode_t *);
509 * xfs_inode.c prototypes.
511 int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
512 xfs_nlink_t, xfs_dev_t, cred_t *, xfs_prid_t,
513 int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
515 uint xfs_ip2xflags(struct xfs_inode *);
516 uint xfs_dic2xflags(struct xfs_dinode *);
517 int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
518 struct xfs_bmap_free *);
519 int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
520 int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
521 xfs_fsize_t, int, int);
522 int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
524 void xfs_iext_realloc(xfs_inode_t *, int, int);
525 void xfs_ipin(xfs_inode_t *);
526 void xfs_iunpin(xfs_inode_t *);
527 int xfs_iflush(xfs_inode_t *, uint);
528 void xfs_ichgtime(xfs_inode_t *, int);
529 xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
530 void xfs_lock_inodes(xfs_inode_t **, int, uint);
531 void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
533 void xfs_synchronize_atime(xfs_inode_t *);
534 void xfs_mark_inode_dirty_sync(xfs_inode_t *);
536 #if defined(XFS_INODE_TRACE)
538 #define INODE_TRACE_SIZE 16 /* number of trace entries */
539 #define INODE_KTRACE_ENTRY 1
540 #define INODE_KTRACE_EXIT 2
541 #define INODE_KTRACE_HOLD 3
542 #define INODE_KTRACE_REF 4
543 #define INODE_KTRACE_RELE 5
545 extern void _xfs_itrace_entry(struct xfs_inode *, const char *, inst_t *);
546 extern void _xfs_itrace_exit(struct xfs_inode *, const char *, inst_t *);
547 extern void xfs_itrace_hold(struct xfs_inode *, char *, int, inst_t *);
548 extern void _xfs_itrace_ref(struct xfs_inode *, char *, int, inst_t *);
549 extern void xfs_itrace_rele(struct xfs_inode *, char *, int, inst_t *);
550 #define xfs_itrace_entry(ip) \
551 _xfs_itrace_entry(ip, __func__, (inst_t *)__return_address)
552 #define xfs_itrace_exit(ip) \
553 _xfs_itrace_exit(ip, __func__, (inst_t *)__return_address)
554 #define xfs_itrace_exit_tag(ip, tag) \
555 _xfs_itrace_exit(ip, tag, (inst_t *)__return_address)
556 #define xfs_itrace_ref(ip) \
557 _xfs_itrace_ref(ip, __FILE__, __LINE__, (inst_t *)__return_address)
560 #define xfs_itrace_entry(a)
561 #define xfs_itrace_exit(a)
562 #define xfs_itrace_exit_tag(a, b)
563 #define xfs_itrace_hold(a, b, c, d)
564 #define xfs_itrace_ref(a)
565 #define xfs_itrace_rele(a, b, c, d)
570 ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
571 atomic_inc(&(VFS_I(ip)->i_count)); \
572 xfs_itrace_hold((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
577 xfs_itrace_rele((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
581 #endif /* __KERNEL__ */
584 * Flags for xfs_iget()
586 #define XFS_IGET_CREATE 0x1
587 #define XFS_IGET_BULKSTAT 0x2
589 int xfs_inotobp(struct xfs_mount *, struct xfs_trans *,
590 xfs_ino_t, struct xfs_dinode **,
591 struct xfs_buf **, int *, uint);
592 int xfs_itobp(struct xfs_mount *, struct xfs_trans *,
593 struct xfs_inode *, struct xfs_dinode **,
594 struct xfs_buf **, uint);
595 int xfs_iread(struct xfs_mount *, struct xfs_trans *,
596 struct xfs_inode *, xfs_daddr_t, uint);
597 void xfs_dinode_from_disk(struct xfs_icdinode *,
598 struct xfs_dinode *);
599 void xfs_dinode_to_disk(struct xfs_dinode *,
600 struct xfs_icdinode *);
601 void xfs_idestroy_fork(struct xfs_inode *, int);
602 void xfs_idata_realloc(struct xfs_inode *, int, int);
603 void xfs_iroot_realloc(struct xfs_inode *, int, int);
604 int xfs_iread_extents(struct xfs_trans *, struct xfs_inode *, int);
605 int xfs_iextents_copy(struct xfs_inode *, xfs_bmbt_rec_t *, int);
607 xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
608 void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
610 void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
611 void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
612 void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int);
613 void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
614 void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
615 void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
616 void xfs_iext_realloc_direct(xfs_ifork_t *, int);
617 void xfs_iext_realloc_indirect(xfs_ifork_t *, int);
618 void xfs_iext_indirect_to_direct(xfs_ifork_t *);
619 void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
620 void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
621 void xfs_iext_destroy(xfs_ifork_t *);
622 xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
623 xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
624 xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
625 void xfs_iext_irec_init(xfs_ifork_t *);
626 xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
627 void xfs_iext_irec_remove(xfs_ifork_t *, int);
628 void xfs_iext_irec_compact(xfs_ifork_t *);
629 void xfs_iext_irec_compact_pages(xfs_ifork_t *);
630 void xfs_iext_irec_compact_full(xfs_ifork_t *);
631 void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
633 #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
636 void xfs_isize_check(struct xfs_mount *, struct xfs_inode *,
639 #define xfs_isize_check(mp, ip, isize)
643 void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
645 #define xfs_inobp_check(mp, bp)
648 extern struct kmem_zone *xfs_ifork_zone;
649 extern struct kmem_zone *xfs_inode_zone;
650 extern struct kmem_zone *xfs_ili_zone;
652 #endif /* __XFS_INODE_H__ */