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 * This is the xfs in-core inode structure.
87 * Most of the on-disk inode is embedded in the i_d field.
89 * The extent pointers/inline file space, however, are managed
90 * separately. The memory for this information is pointed to by
91 * the if_u1 unions depending on the type of the data.
92 * This is used to linearize the array of extents for fast in-core
93 * access. This is used until the file's number of extents
94 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
95 * are accessed through the buffer cache.
97 * Other state kept in the in-core inode is used for identification,
98 * locking, transactional updating, etc of the inode.
100 * Generally, we do not want to hold the i_rlock while holding the
101 * i_ilock. Hierarchy is i_iolock followed by i_rlock.
103 * xfs_iptr_t contains all the inode fields upto and including the
104 * i_mnext and i_mprev fields, it is used as a marker in the inode
105 * chain off the mount structure by xfs_sync calls.
108 typedef struct xfs_ictimestamp {
109 __int32_t t_sec; /* timestamp seconds */
110 __int32_t t_nsec; /* timestamp nanoseconds */
114 * NOTE: This structure must be kept identical to struct xfs_dinode
115 * in xfs_dinode.h except for the endianess annotations.
117 typedef struct xfs_icdinode {
118 __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */
119 __uint16_t di_mode; /* mode and type of file */
120 __int8_t di_version; /* inode version */
121 __int8_t di_format; /* format of di_c data */
122 __uint16_t di_onlink; /* old number of links to file */
123 __uint32_t di_uid; /* owner's user id */
124 __uint32_t di_gid; /* owner's group id */
125 __uint32_t di_nlink; /* number of links to file */
126 __uint16_t di_projid; /* owner's project id */
127 __uint8_t di_pad[8]; /* unused, zeroed space */
128 __uint16_t di_flushiter; /* incremented on flush */
129 xfs_ictimestamp_t di_atime; /* time last accessed */
130 xfs_ictimestamp_t di_mtime; /* time last modified */
131 xfs_ictimestamp_t di_ctime; /* time created/inode modified */
132 xfs_fsize_t di_size; /* number of bytes in file */
133 xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */
134 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
135 xfs_extnum_t di_nextents; /* number of extents in data fork */
136 xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
137 __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
138 __int8_t di_aformat; /* format of attr fork's data */
139 __uint32_t di_dmevmask; /* DMIG event mask */
140 __uint16_t di_dmstate; /* DMIG state info */
141 __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
142 __uint32_t di_gen; /* generation number */
146 * Flags for xfs_ichgtime().
148 #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
149 #define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
152 * Per-fork incore inode flags.
154 #define XFS_IFINLINE 0x01 /* Inline data is read in */
155 #define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
156 #define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
157 #define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
160 * Flags for xfs_inotobp, xfs_imap() and xfs_dilocate().
162 #define XFS_IMAP_BULKSTAT 0x1
168 #define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
169 #define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
171 #define XFS_IFORK_PTR(ip,w) \
172 ((w) == XFS_DATA_FORK ? \
175 #define XFS_IFORK_DSIZE(ip) \
177 XFS_IFORK_BOFF(ip) : \
178 XFS_LITINO((ip)->i_mount))
179 #define XFS_IFORK_ASIZE(ip) \
181 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \
183 #define XFS_IFORK_SIZE(ip,w) \
184 ((w) == XFS_DATA_FORK ? \
185 XFS_IFORK_DSIZE(ip) : \
187 #define XFS_IFORK_FORMAT(ip,w) \
188 ((w) == XFS_DATA_FORK ? \
189 (ip)->i_d.di_format : \
190 (ip)->i_d.di_aformat)
191 #define XFS_IFORK_FMT_SET(ip,w,n) \
192 ((w) == XFS_DATA_FORK ? \
193 ((ip)->i_d.di_format = (n)) : \
194 ((ip)->i_d.di_aformat = (n)))
195 #define XFS_IFORK_NEXTENTS(ip,w) \
196 ((w) == XFS_DATA_FORK ? \
197 (ip)->i_d.di_nextents : \
198 (ip)->i_d.di_anextents)
199 #define XFS_IFORK_NEXT_SET(ip,w,n) \
200 ((w) == XFS_DATA_FORK ? \
201 ((ip)->i_d.di_nextents = (n)) : \
202 ((ip)->i_d.di_anextents = (n)))
212 struct xfs_bmap_free;
213 struct xfs_bmbt_irec;
214 struct xfs_inode_log_item;
219 #if defined(XFS_ILOCK_TRACE)
220 #define XFS_ILOCK_KTRACE_SIZE 32
221 extern ktrace_t *xfs_ilock_trace_buf;
222 extern void xfs_ilock_trace(struct xfs_inode *, int, unsigned int, inst_t *);
224 #define xfs_ilock_trace(i,n,f,ra)
227 typedef struct dm_attrs_s {
228 __uint32_t da_dmevmask; /* DMIG event mask */
229 __uint16_t da_dmstate; /* DMIG state info */
230 __uint16_t da_pad; /* DMIG extra padding */
233 typedef struct xfs_inode {
234 /* Inode linking and identification information. */
235 struct xfs_mount *i_mount; /* fs mount struct ptr */
236 struct xfs_dquot *i_udquot; /* user dquot */
237 struct xfs_dquot *i_gdquot; /* group dquot */
239 /* Inode location stuff */
240 xfs_ino_t i_ino; /* inode number (agno/agino)*/
241 xfs_daddr_t i_blkno; /* blkno of inode buffer */
242 ushort i_len; /* len of inode buffer */
243 ushort i_boffset; /* off of inode in buffer */
245 /* Extent information. */
246 xfs_ifork_t *i_afp; /* attribute fork pointer */
247 xfs_ifork_t i_df; /* data fork */
249 /* Transaction and locking information. */
250 struct xfs_trans *i_transp; /* ptr to owning transaction*/
251 struct xfs_inode_log_item *i_itemp; /* logging information */
252 mrlock_t i_lock; /* inode lock */
253 mrlock_t i_iolock; /* inode IO lock */
254 struct completion i_flush; /* inode flush completion q */
255 atomic_t i_pincount; /* inode pin count */
256 wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
257 spinlock_t i_flags_lock; /* inode i_flags lock */
258 /* Miscellaneous state. */
259 unsigned short i_flags; /* see defined flags below */
260 unsigned char i_update_core; /* timestamps/size is dirty */
261 unsigned char i_update_size; /* di_size field is dirty */
262 unsigned int i_delayed_blks; /* count of delay alloc blks */
264 xfs_icdinode_t i_d; /* most of ondisk inode */
266 xfs_fsize_t i_size; /* in-memory size */
267 xfs_fsize_t i_new_size; /* size when write completes */
268 atomic_t i_iocount; /* outstanding I/O count */
271 struct inode i_vnode; /* embedded VFS inode */
273 /* Trace buffers per inode. */
274 #ifdef XFS_INODE_TRACE
275 struct ktrace *i_trace; /* general inode trace */
277 #ifdef XFS_BMAP_TRACE
278 struct ktrace *i_xtrace; /* inode extent list trace */
280 #ifdef XFS_BTREE_TRACE
281 struct ktrace *i_btrace; /* inode bmap btree trace */
284 struct ktrace *i_rwtrace; /* inode read/write trace */
286 #ifdef XFS_ILOCK_TRACE
287 struct ktrace *i_lock_trace; /* inode lock/unlock trace */
289 #ifdef XFS_DIR2_TRACE
290 struct ktrace *i_dir_trace; /* inode directory trace */
294 #define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
295 (ip)->i_size : (ip)->i_d.di_size;
297 /* Convert from vfs inode to xfs inode */
298 static inline struct xfs_inode *XFS_I(struct inode *inode)
300 return container_of(inode, struct xfs_inode, i_vnode);
303 /* convert from xfs inode to vfs inode */
304 static inline struct inode *VFS_I(struct xfs_inode *ip)
310 * Get rid of a partially initialized inode.
312 * We have to go through destroy_inode to make sure allocations
313 * from init_inode_always like the security data are undone.
315 * We mark the inode bad so that it takes the short cut in
316 * the reclaim path instead of going through the flush path
317 * which doesn't make sense for an inode that has never seen the
320 static inline void xfs_destroy_inode(struct xfs_inode *ip)
322 make_bad_inode(VFS_I(ip));
323 return destroy_inode(VFS_I(ip));
327 * i_flags helper functions
330 __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
332 ip->i_flags |= flags;
336 xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
338 spin_lock(&ip->i_flags_lock);
339 __xfs_iflags_set(ip, flags);
340 spin_unlock(&ip->i_flags_lock);
344 xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
346 spin_lock(&ip->i_flags_lock);
347 ip->i_flags &= ~flags;
348 spin_unlock(&ip->i_flags_lock);
352 __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
354 return (ip->i_flags & flags);
358 xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
361 spin_lock(&ip->i_flags_lock);
362 ret = __xfs_iflags_test(ip, flags);
363 spin_unlock(&ip->i_flags_lock);
368 xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
372 spin_lock(&ip->i_flags_lock);
373 ret = ip->i_flags & flags;
375 ip->i_flags &= ~flags;
376 spin_unlock(&ip->i_flags_lock);
381 * Manage the i_flush queue embedded in the inode. This completion
382 * queue synchronizes processes attempting to flush the in-core
383 * inode back to disk.
385 static inline void xfs_iflock(xfs_inode_t *ip)
387 wait_for_completion(&ip->i_flush);
390 static inline int xfs_iflock_nowait(xfs_inode_t *ip)
392 return try_wait_for_completion(&ip->i_flush);
395 static inline void xfs_ifunlock(xfs_inode_t *ip)
397 complete(&ip->i_flush);
401 * In-core inode flags.
403 #define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */
404 #define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */
405 #define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */
406 #define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */
407 #define XFS_ISTALE 0x0010 /* inode has been staled */
408 #define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */
409 #define XFS_INEW 0x0040
410 #define XFS_IFILESTREAM 0x0080 /* inode is in a filestream directory */
411 #define XFS_IMODIFIED 0x0100 /* XFS inode state possibly differs */
412 /* to the Linux inode state. */
413 #define XFS_ITRUNCATED 0x0200 /* truncated down so flush-on-close */
416 * Flags for inode locking.
417 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
418 * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
420 #define XFS_IOLOCK_EXCL (1<<0)
421 #define XFS_IOLOCK_SHARED (1<<1)
422 #define XFS_ILOCK_EXCL (1<<2)
423 #define XFS_ILOCK_SHARED (1<<3)
424 #define XFS_IUNLOCK_NONOTIFY (1<<4)
426 #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
427 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED)
430 * Flags for lockdep annotations.
432 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes
433 * (ie directory operations that require locking a directory inode and
434 * an entry inode). The first inode gets locked with this flag so it
435 * gets a lockdep subclass of 1 and the second lock will have a lockdep
438 * XFS_LOCK_INUMORDER - for locking several inodes at the some time
439 * with xfs_lock_inodes(). This flag is used as the starting subclass
440 * and each subsequent lock acquired will increment the subclass by one.
441 * So the first lock acquired will have a lockdep subclass of 2, the
442 * second lock will have a lockdep subclass of 3, and so on. It is
443 * the responsibility of the class builder to shift this to the correct
444 * portion of the lock_mode lockdep mask.
446 #define XFS_LOCK_PARENT 1
447 #define XFS_LOCK_INUMORDER 2
449 #define XFS_IOLOCK_SHIFT 16
450 #define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
452 #define XFS_ILOCK_SHIFT 24
453 #define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
455 #define XFS_IOLOCK_DEP_MASK 0x00ff0000
456 #define XFS_ILOCK_DEP_MASK 0xff000000
457 #define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
459 #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
460 #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
463 * Flags for xfs_iflush()
465 #define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
466 #define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
467 #define XFS_IFLUSH_SYNC 3
468 #define XFS_IFLUSH_ASYNC 4
469 #define XFS_IFLUSH_DELWRI 5
470 #define XFS_IFLUSH_ASYNC_NOBLOCK 6
473 * Flags for xfs_itruncate_start().
475 #define XFS_ITRUNC_DEFINITE 0x1
476 #define XFS_ITRUNC_MAYBE 0x2
479 * For multiple groups support: if S_ISGID bit is set in the parent
480 * directory, group of new file is set to that of the parent, and
481 * new subdirectory gets S_ISGID bit from parent.
483 #define XFS_INHERIT_GID(pip) \
484 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
485 ((pip)->i_d.di_mode & S_ISGID))
488 * Flags for xfs_iget()
490 #define XFS_IGET_CREATE 0x1
491 #define XFS_IGET_BULKSTAT 0x2
494 * xfs_iget.c prototypes.
496 void xfs_ihash_init(struct xfs_mount *);
497 void xfs_ihash_free(struct xfs_mount *);
498 xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
500 int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
501 uint, uint, xfs_inode_t **, xfs_daddr_t);
502 void xfs_iput(xfs_inode_t *, uint);
503 void xfs_iput_new(xfs_inode_t *, uint);
504 void xfs_ilock(xfs_inode_t *, uint);
505 int xfs_ilock_nowait(xfs_inode_t *, uint);
506 void xfs_iunlock(xfs_inode_t *, uint);
507 void xfs_ilock_demote(xfs_inode_t *, uint);
508 int xfs_isilocked(xfs_inode_t *, uint);
509 uint xfs_ilock_map_shared(xfs_inode_t *);
510 void xfs_iunlock_map_shared(xfs_inode_t *, uint);
511 void xfs_ireclaim(xfs_inode_t *);
514 * xfs_inode.c prototypes.
516 int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
517 xfs_inode_t **, xfs_daddr_t, uint);
518 int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
519 xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t,
520 int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
522 uint xfs_ip2xflags(struct xfs_inode *);
523 uint xfs_dic2xflags(struct xfs_dinode *);
524 int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
525 struct xfs_bmap_free *);
526 int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
527 int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
528 xfs_fsize_t, int, int);
529 int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
531 void xfs_idestroy(xfs_inode_t *);
532 void xfs_iextract(xfs_inode_t *);
533 void xfs_iext_realloc(xfs_inode_t *, int, int);
534 void xfs_ipin(xfs_inode_t *);
535 void xfs_iunpin(xfs_inode_t *);
536 int xfs_iflush(xfs_inode_t *, uint);
537 void xfs_ichgtime(xfs_inode_t *, int);
538 xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
539 void xfs_lock_inodes(xfs_inode_t **, int, uint);
540 void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
542 void xfs_synchronize_atime(xfs_inode_t *);
543 void xfs_mark_inode_dirty_sync(xfs_inode_t *);
545 #endif /* __KERNEL__ */
547 int xfs_inotobp(struct xfs_mount *, struct xfs_trans *,
548 xfs_ino_t, struct xfs_dinode **,
549 struct xfs_buf **, int *, uint);
550 int xfs_itobp(struct xfs_mount *, struct xfs_trans *,
551 struct xfs_inode *, struct xfs_dinode **,
552 struct xfs_buf **, uint);
553 void xfs_dinode_from_disk(struct xfs_icdinode *,
554 struct xfs_dinode *);
555 void xfs_dinode_to_disk(struct xfs_dinode *,
556 struct xfs_icdinode *);
557 void xfs_idestroy_fork(struct xfs_inode *, int);
558 void xfs_idata_realloc(struct xfs_inode *, int, int);
559 void xfs_iroot_realloc(struct xfs_inode *, int, int);
560 int xfs_iread_extents(struct xfs_trans *, struct xfs_inode *, int);
561 int xfs_iextents_copy(struct xfs_inode *, xfs_bmbt_rec_t *, int);
563 xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
564 void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
566 void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
567 void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
568 void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int);
569 void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
570 void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
571 void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
572 void xfs_iext_realloc_direct(xfs_ifork_t *, int);
573 void xfs_iext_realloc_indirect(xfs_ifork_t *, int);
574 void xfs_iext_indirect_to_direct(xfs_ifork_t *);
575 void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
576 void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
577 void xfs_iext_destroy(xfs_ifork_t *);
578 xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
579 xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
580 xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
581 void xfs_iext_irec_init(xfs_ifork_t *);
582 xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
583 void xfs_iext_irec_remove(xfs_ifork_t *, int);
584 void xfs_iext_irec_compact(xfs_ifork_t *);
585 void xfs_iext_irec_compact_pages(xfs_ifork_t *);
586 void xfs_iext_irec_compact_full(xfs_ifork_t *);
587 void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
589 #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
592 void xfs_isize_check(struct xfs_mount *, struct xfs_inode *,
595 #define xfs_isize_check(mp, ip, isize)
599 void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
601 #define xfs_inobp_check(mp, bp)
604 extern struct kmem_zone *xfs_ifork_zone;
605 extern struct kmem_zone *xfs_inode_zone;
606 extern struct kmem_zone *xfs_ili_zone;
608 #endif /* __XFS_INODE_H__ */