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 xfs_bmbt_block_t *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 * Flags for xfs_ichgtime().
89 #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
90 #define XFS_ICHGTIME_ACC 0x2 /* data fork access timestamp */
91 #define XFS_ICHGTIME_CHG 0x4 /* inode field change timestamp */
94 * Per-fork incore inode flags.
96 #define XFS_IFINLINE 0x01 /* Inline data is read in */
97 #define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
98 #define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
99 #define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
102 * Flags for xfs_itobp(), xfs_imap() and xfs_dilocate().
104 #define XFS_IMAP_LOOKUP 0x1
105 #define XFS_IMAP_BULKSTAT 0x2
112 struct xfs_bmap_free;
113 struct xfs_bmbt_irec;
114 struct xfs_bmbt_block;
116 struct xfs_inode_log_item;
121 #if defined(XFS_ILOCK_TRACE)
122 #define XFS_ILOCK_KTRACE_SIZE 32
123 extern ktrace_t *xfs_ilock_trace_buf;
124 extern void xfs_ilock_trace(struct xfs_inode *, int, unsigned int, inst_t *);
126 #define xfs_ilock_trace(i,n,f,ra)
129 typedef struct dm_attrs_s {
130 __uint32_t da_dmevmask; /* DMIG event mask */
131 __uint16_t da_dmstate; /* DMIG state info */
132 __uint16_t da_pad; /* DMIG extra padding */
136 * This is the xfs inode cluster structure. This structure is used by
137 * xfs_iflush to find inodes that share a cluster and can be flushed to disk at
140 typedef struct xfs_icluster {
141 struct hlist_head icl_inodes; /* list of inodes on cluster */
142 xfs_daddr_t icl_blkno; /* starting block number of
144 struct xfs_buf *icl_buf; /* the inode buffer */
145 spinlock_t icl_lock; /* inode list lock */
149 * This is the xfs in-core inode structure.
150 * Most of the on-disk inode is embedded in the i_d field.
152 * The extent pointers/inline file space, however, are managed
153 * separately. The memory for this information is pointed to by
154 * the if_u1 unions depending on the type of the data.
155 * This is used to linearize the array of extents for fast in-core
156 * access. This is used until the file's number of extents
157 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
158 * are accessed through the buffer cache.
160 * Other state kept in the in-core inode is used for identification,
161 * locking, transactional updating, etc of the inode.
163 * Generally, we do not want to hold the i_rlock while holding the
164 * i_ilock. Hierarchy is i_iolock followed by i_rlock.
166 * xfs_iptr_t contains all the inode fields upto and including the
167 * i_mnext and i_mprev fields, it is used as a marker in the inode
168 * chain off the mount structure by xfs_sync calls.
171 typedef struct xfs_ictimestamp {
172 __int32_t t_sec; /* timestamp seconds */
173 __int32_t t_nsec; /* timestamp nanoseconds */
177 * NOTE: This structure must be kept identical to struct xfs_dinode_core
178 * in xfs_dinode.h except for the endianess annotations.
180 typedef struct xfs_icdinode {
181 __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */
182 __uint16_t di_mode; /* mode and type of file */
183 __int8_t di_version; /* inode version */
184 __int8_t di_format; /* format of di_c data */
185 __uint16_t di_onlink; /* old number of links to file */
186 __uint32_t di_uid; /* owner's user id */
187 __uint32_t di_gid; /* owner's group id */
188 __uint32_t di_nlink; /* number of links to file */
189 __uint16_t di_projid; /* owner's project id */
190 __uint8_t di_pad[8]; /* unused, zeroed space */
191 __uint16_t di_flushiter; /* incremented on flush */
192 xfs_ictimestamp_t di_atime; /* time last accessed */
193 xfs_ictimestamp_t di_mtime; /* time last modified */
194 xfs_ictimestamp_t di_ctime; /* time created/inode modified */
195 xfs_fsize_t di_size; /* number of bytes in file */
196 xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */
197 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
198 xfs_extnum_t di_nextents; /* number of extents in data fork */
199 xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
200 __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
201 __int8_t di_aformat; /* format of attr fork's data */
202 __uint32_t di_dmevmask; /* DMIG event mask */
203 __uint16_t di_dmstate; /* DMIG state info */
204 __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
205 __uint32_t di_gen; /* generation number */
209 struct xfs_inode *ip_mnext; /* next inode in mount list */
210 struct xfs_inode *ip_mprev; /* ptr to prev inode */
211 struct xfs_mount *ip_mount; /* fs mount struct ptr */
214 typedef struct xfs_inode {
215 /* Inode linking and identification information. */
216 struct xfs_inode *i_mnext; /* next inode in mount list */
217 struct xfs_inode *i_mprev; /* ptr to prev inode */
218 struct xfs_mount *i_mount; /* fs mount struct ptr */
219 struct list_head i_reclaim; /* reclaim list */
220 bhv_vnode_t *i_vnode; /* vnode backpointer */
221 struct xfs_dquot *i_udquot; /* user dquot */
222 struct xfs_dquot *i_gdquot; /* group dquot */
224 /* Inode location stuff */
225 xfs_ino_t i_ino; /* inode number (agno/agino)*/
226 xfs_daddr_t i_blkno; /* blkno of inode buffer */
227 ushort i_len; /* len of inode buffer */
228 ushort i_boffset; /* off of inode in buffer */
230 /* Extent information. */
231 xfs_ifork_t *i_afp; /* attribute fork pointer */
232 xfs_ifork_t i_df; /* data fork */
234 /* Transaction and locking information. */
235 struct xfs_trans *i_transp; /* ptr to owning transaction*/
236 struct xfs_inode_log_item *i_itemp; /* logging information */
237 mrlock_t i_lock; /* inode lock */
238 mrlock_t i_iolock; /* inode IO lock */
239 sema_t i_flock; /* inode flush lock */
240 atomic_t i_pincount; /* inode pin count */
241 wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
242 spinlock_t i_flags_lock; /* inode i_flags lock */
243 /* Miscellaneous state. */
244 unsigned short i_flags; /* see defined flags below */
245 unsigned char i_update_core; /* timestamps/size is dirty */
246 unsigned char i_update_size; /* di_size field is dirty */
247 unsigned int i_gen; /* generation count */
248 unsigned int i_delayed_blks; /* count of delay alloc blks */
250 xfs_icdinode_t i_d; /* most of ondisk inode */
251 xfs_icluster_t *i_cluster; /* cluster list header */
252 struct hlist_node i_cnode; /* cluster link node */
254 xfs_fsize_t i_size; /* in-memory size */
255 xfs_fsize_t i_new_size; /* size when write completes */
256 atomic_t i_iocount; /* outstanding I/O count */
257 /* Trace buffers per inode. */
258 #ifdef XFS_INODE_TRACE
259 struct ktrace *i_trace; /* general inode trace */
261 #ifdef XFS_BMAP_TRACE
262 struct ktrace *i_xtrace; /* inode extent list trace */
264 #ifdef XFS_BMBT_TRACE
265 struct ktrace *i_btrace; /* inode bmap btree trace */
268 struct ktrace *i_rwtrace; /* inode read/write trace */
270 #ifdef XFS_ILOCK_TRACE
271 struct ktrace *i_lock_trace; /* inode lock/unlock trace */
273 #ifdef XFS_DIR2_TRACE
274 struct ktrace *i_dir_trace; /* inode directory trace */
278 #define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
279 (ip)->i_size : (ip)->i_d.di_size;
282 * i_flags helper functions
285 __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
287 ip->i_flags |= flags;
291 xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
293 spin_lock(&ip->i_flags_lock);
294 __xfs_iflags_set(ip, flags);
295 spin_unlock(&ip->i_flags_lock);
299 xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
301 spin_lock(&ip->i_flags_lock);
302 ip->i_flags &= ~flags;
303 spin_unlock(&ip->i_flags_lock);
307 __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
309 return (ip->i_flags & flags);
313 xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
316 spin_lock(&ip->i_flags_lock);
317 ret = __xfs_iflags_test(ip, flags);
318 spin_unlock(&ip->i_flags_lock);
323 xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
327 spin_lock(&ip->i_flags_lock);
328 ret = ip->i_flags & flags;
330 ip->i_flags &= ~flags;
331 spin_unlock(&ip->i_flags_lock);
334 #endif /* __KERNEL__ */
341 #define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
342 #define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
344 #define XFS_IFORK_PTR(ip,w) \
345 ((w) == XFS_DATA_FORK ? \
348 #define XFS_IFORK_DSIZE(ip) \
350 XFS_IFORK_BOFF(ip) : \
351 XFS_LITINO((ip)->i_mount))
352 #define XFS_IFORK_ASIZE(ip) \
354 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \
356 #define XFS_IFORK_SIZE(ip,w) \
357 ((w) == XFS_DATA_FORK ? \
358 XFS_IFORK_DSIZE(ip) : \
360 #define XFS_IFORK_FORMAT(ip,w) \
361 ((w) == XFS_DATA_FORK ? \
362 (ip)->i_d.di_format : \
363 (ip)->i_d.di_aformat)
364 #define XFS_IFORK_FMT_SET(ip,w,n) \
365 ((w) == XFS_DATA_FORK ? \
366 ((ip)->i_d.di_format = (n)) : \
367 ((ip)->i_d.di_aformat = (n)))
368 #define XFS_IFORK_NEXTENTS(ip,w) \
369 ((w) == XFS_DATA_FORK ? \
370 (ip)->i_d.di_nextents : \
371 (ip)->i_d.di_anextents)
372 #define XFS_IFORK_NEXT_SET(ip,w,n) \
373 ((w) == XFS_DATA_FORK ? \
374 ((ip)->i_d.di_nextents = (n)) : \
375 ((ip)->i_d.di_anextents = (n)))
380 * In-core inode flags.
382 #define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */
383 #define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */
384 #define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */
385 #define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */
386 #define XFS_ISTALE 0x0010 /* inode has been staled */
387 #define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */
388 #define XFS_INEW 0x0040
389 #define XFS_IFILESTREAM 0x0080 /* inode is in a filestream directory */
390 #define XFS_IMODIFIED 0x0100 /* XFS inode state possibly differs */
391 /* to the Linux inode state. */
392 #define XFS_ITRUNCATED 0x0200 /* truncated down so flush-on-close */
395 * Flags for inode locking.
396 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
397 * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
399 #define XFS_IOLOCK_EXCL (1<<0)
400 #define XFS_IOLOCK_SHARED (1<<1)
401 #define XFS_ILOCK_EXCL (1<<2)
402 #define XFS_ILOCK_SHARED (1<<3)
403 #define XFS_IUNLOCK_NONOTIFY (1<<4)
404 /* #define XFS_IOLOCK_NESTED (1<<5) */
405 #define XFS_EXTENT_TOKEN_RD (1<<6)
406 #define XFS_SIZE_TOKEN_RD (1<<7)
407 #define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
408 #define XFS_WILLLEND (1<<8) /* Always acquire tokens for lending */
409 #define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
410 #define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
411 #define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND)
412 /* TODO:XFS_SIZE_TOKEN_WANT (1<<9) */
414 #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
415 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \
416 | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD \
420 * Flags for lockdep annotations.
422 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes
423 * (ie directory operations that require locking a directory inode and
424 * an entry inode). The first inode gets locked with this flag so it
425 * gets a lockdep subclass of 1 and the second lock will have a lockdep
428 * XFS_LOCK_INUMORDER - for locking several inodes at the some time
429 * with xfs_lock_inodes(). This flag is used as the starting subclass
430 * and each subsequent lock acquired will increment the subclass by one.
431 * So the first lock acquired will have a lockdep subclass of 2, the
432 * second lock will have a lockdep subclass of 3, and so on. It is
433 * the responsibility of the class builder to shift this to the correct
434 * portion of the lock_mode lockdep mask.
436 #define XFS_LOCK_PARENT 1
437 #define XFS_LOCK_INUMORDER 2
439 #define XFS_IOLOCK_SHIFT 16
440 #define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT)
442 #define XFS_ILOCK_SHIFT 24
443 #define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT)
445 #define XFS_IOLOCK_DEP_MASK 0x00ff0000
446 #define XFS_ILOCK_DEP_MASK 0xff000000
447 #define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK)
449 #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT)
450 #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT)
453 * Flags for xfs_iflush()
455 #define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
456 #define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
457 #define XFS_IFLUSH_SYNC 3
458 #define XFS_IFLUSH_ASYNC 4
459 #define XFS_IFLUSH_DELWRI 5
460 #define XFS_IFLUSH_ASYNC_NOBLOCK 6
463 * Flags for xfs_itruncate_start().
465 #define XFS_ITRUNC_DEFINITE 0x1
466 #define XFS_ITRUNC_MAYBE 0x2
468 #define XFS_ITOV(ip) ((ip)->i_vnode)
469 #define XFS_ITOV_NULL(ip) ((ip)->i_vnode)
472 * For multiple groups support: if S_ISGID bit is set in the parent
473 * directory, group of new file is set to that of the parent, and
474 * new subdirectory gets S_ISGID bit from parent.
476 #define XFS_INHERIT_GID(pip) \
477 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
478 ((pip)->i_d.di_mode & S_ISGID))
481 * Flags for xfs_iget()
483 #define XFS_IGET_CREATE 0x1
484 #define XFS_IGET_BULKSTAT 0x2
487 * xfs_iget.c prototypes.
489 void xfs_ihash_init(struct xfs_mount *);
490 void xfs_ihash_free(struct xfs_mount *);
491 xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
493 int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
494 uint, uint, xfs_inode_t **, xfs_daddr_t);
495 void xfs_iput(xfs_inode_t *, uint);
496 void xfs_iput_new(xfs_inode_t *, uint);
497 void xfs_ilock(xfs_inode_t *, uint);
498 int xfs_ilock_nowait(xfs_inode_t *, uint);
499 void xfs_iunlock(xfs_inode_t *, uint);
500 void xfs_ilock_demote(xfs_inode_t *, uint);
501 void xfs_iflock(xfs_inode_t *);
502 int xfs_iflock_nowait(xfs_inode_t *);
503 uint xfs_ilock_map_shared(xfs_inode_t *);
504 void xfs_iunlock_map_shared(xfs_inode_t *, uint);
505 void xfs_ifunlock(xfs_inode_t *);
506 void xfs_ireclaim(xfs_inode_t *);
507 int xfs_finish_reclaim(xfs_inode_t *, int, int);
508 int xfs_finish_reclaim_all(struct xfs_mount *, int);
511 * xfs_inode.c prototypes.
513 int xfs_itobp(struct xfs_mount *, struct xfs_trans *,
514 xfs_inode_t *, struct xfs_dinode **, struct xfs_buf **,
515 xfs_daddr_t, uint, uint);
516 int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
517 xfs_inode_t **, xfs_daddr_t, uint);
518 int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
519 int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
520 xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t,
521 int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
522 void xfs_dinode_from_disk(struct xfs_icdinode *,
523 struct xfs_dinode_core *);
524 void xfs_dinode_to_disk(struct xfs_dinode_core *,
525 struct xfs_icdinode *);
527 uint xfs_ip2xflags(struct xfs_inode *);
528 uint xfs_dic2xflags(struct xfs_dinode *);
529 int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
530 struct xfs_bmap_free *);
531 int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
532 int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
533 xfs_fsize_t, int, int);
534 int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
535 int xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *);
536 void xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *,
539 void xfs_idestroy_fork(xfs_inode_t *, int);
540 void xfs_idestroy(xfs_inode_t *);
541 void xfs_idata_realloc(xfs_inode_t *, int, int);
542 void xfs_iextract(xfs_inode_t *);
543 void xfs_iext_realloc(xfs_inode_t *, int, int);
544 void xfs_iroot_realloc(xfs_inode_t *, int, int);
545 void xfs_ipin(xfs_inode_t *);
546 void xfs_iunpin(xfs_inode_t *);
547 int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
548 int xfs_iflush(xfs_inode_t *, uint);
549 void xfs_iflush_all(struct xfs_mount *);
550 void xfs_ichgtime(xfs_inode_t *, int);
551 xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
552 void xfs_lock_inodes(xfs_inode_t **, int, int, uint);
554 void xfs_synchronize_atime(xfs_inode_t *);
555 void xfs_mark_inode_dirty_sync(xfs_inode_t *);
557 xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
558 void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
560 void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
561 void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
562 void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int);
563 void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
564 void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
565 void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
566 void xfs_iext_realloc_direct(xfs_ifork_t *, int);
567 void xfs_iext_realloc_indirect(xfs_ifork_t *, int);
568 void xfs_iext_indirect_to_direct(xfs_ifork_t *);
569 void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
570 void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
571 void xfs_iext_destroy(xfs_ifork_t *);
572 xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
573 xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
574 xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
575 void xfs_iext_irec_init(xfs_ifork_t *);
576 xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
577 void xfs_iext_irec_remove(xfs_ifork_t *, int);
578 void xfs_iext_irec_compact(xfs_ifork_t *);
579 void xfs_iext_irec_compact_pages(xfs_ifork_t *);
580 void xfs_iext_irec_compact_full(xfs_ifork_t *);
581 void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
583 #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
586 void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t);
588 #define xfs_isize_check(mp, ip, isize)
592 void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
594 #define xfs_inobp_check(mp, bp)
597 extern struct kmem_zone *xfs_icluster_zone;
598 extern struct kmem_zone *xfs_ifork_zone;
599 extern struct kmem_zone *xfs_inode_zone;
600 extern struct kmem_zone *xfs_ili_zone;
602 #endif /* __KERNEL__ */
604 #endif /* __XFS_INODE_H__ */