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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * 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.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
18#ifndef __XFS_INODE_H__
19#define __XFS_INODE_H__
20
21/*
Nathan Scotta844f452005-11-02 14:38:42 +110022 * Fork identifiers.
23 */
24#define XFS_DATA_FORK 0
25#define XFS_ATTR_FORK 1
26
27/*
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +110028 * The following xfs_ext_irec_t struct introduces a second (top) level
29 * to the in-core extent allocation scheme. These structs are allocated
30 * in a contiguous block, creating an indirection array where each entry
31 * (irec) contains a pointer to a buffer of in-core extent records which
32 * it manages. Each extent buffer is 4k in size, since 4k is the system
33 * page size on Linux i386 and systems with larger page sizes don't seem
34 * to gain much, if anything, by using their native page size as the
35 * extent buffer size. Also, using 4k extent buffers everywhere provides
36 * a consistent interface for CXFS across different platforms.
37 *
38 * There is currently no limit on the number of irec's (extent lists)
39 * allowed, so heavily fragmented files may require an indirection array
40 * which spans multiple system pages of memory. The number of extents
41 * which would require this amount of contiguous memory is very large
42 * and should not cause problems in the foreseeable future. However,
43 * if the memory needed for the contiguous array ever becomes a problem,
44 * it is possible that a third level of indirection may be required.
45 */
46typedef struct xfs_ext_irec {
47 xfs_bmbt_rec_t *er_extbuf; /* block of extent records */
48 xfs_extnum_t er_extoff; /* extent offset in file */
49 xfs_extnum_t er_extcount; /* number of extents in page/block */
50} xfs_ext_irec_t;
51
52/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 * File incore extent information, present for each of data & attr forks.
54 */
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +110055#define XFS_IEXT_BUFSZ 4096
56#define XFS_LINEAR_EXTS (XFS_IEXT_BUFSZ / (uint)sizeof(xfs_bmbt_rec_t))
57#define XFS_INLINE_EXTS 2
58#define XFS_INLINE_DATA 32
Linus Torvalds1da177e2005-04-16 15:20:36 -070059typedef struct xfs_ifork {
60 int if_bytes; /* bytes in if_u1 */
61 int if_real_bytes; /* bytes allocated in if_u1 */
62 xfs_bmbt_block_t *if_broot; /* file's incore btree root */
63 short if_broot_bytes; /* bytes allocated for root */
64 unsigned char if_flags; /* per-fork flags */
65 unsigned char if_ext_max; /* max # of extent records */
66 xfs_extnum_t if_lastex; /* last if_extents used */
67 union {
68 xfs_bmbt_rec_t *if_extents; /* linear map file exts */
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +110069 xfs_ext_irec_t *if_ext_irec; /* irec map file exts */
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 char *if_data; /* inline file data */
71 } if_u1;
72 union {
73 xfs_bmbt_rec_t if_inline_ext[XFS_INLINE_EXTS];
74 /* very small file extents */
75 char if_inline_data[XFS_INLINE_DATA];
76 /* very small file data */
77 xfs_dev_t if_rdev; /* dev number if special */
78 uuid_t if_uuid; /* mount point value */
79 } if_u2;
80} xfs_ifork_t;
81
82/*
83 * Flags for xfs_ichgtime().
84 */
85#define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
86#define XFS_ICHGTIME_ACC 0x2 /* data fork access timestamp */
87#define XFS_ICHGTIME_CHG 0x4 /* inode field change timestamp */
88
89/*
90 * Per-fork incore inode flags.
91 */
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +110092#define XFS_IFINLINE 0x01 /* Inline data is read in */
93#define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */
94#define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */
95#define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */
Linus Torvalds1da177e2005-04-16 15:20:36 -070096
97/*
Nathan Scottb12dd342006-03-17 17:26:04 +110098 * Flags for xfs_itobp(), xfs_imap() and xfs_dilocate().
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 */
Nathan Scottb12dd342006-03-17 17:26:04 +1100100#define XFS_IMAP_LOOKUP 0x1
101#define XFS_IMAP_BULKSTAT 0x2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103#ifdef __KERNEL__
104struct bhv_desc;
105struct cred;
106struct ktrace;
107struct vnode;
108struct xfs_buf;
109struct xfs_bmap_free;
110struct xfs_bmbt_irec;
111struct xfs_bmbt_block;
112struct xfs_inode;
113struct xfs_inode_log_item;
114struct xfs_mount;
115struct xfs_trans;
116struct xfs_dquot;
117
118#if defined(XFS_ILOCK_TRACE)
119#define XFS_ILOCK_KTRACE_SIZE 32
120extern ktrace_t *xfs_ilock_trace_buf;
121extern void xfs_ilock_trace(struct xfs_inode *, int, unsigned int, inst_t *);
122#else
123#define xfs_ilock_trace(i,n,f,ra)
124#endif
125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126typedef struct dm_attrs_s {
127 __uint32_t da_dmevmask; /* DMIG event mask */
128 __uint16_t da_dmstate; /* DMIG state info */
129 __uint16_t da_pad; /* DMIG extra padding */
130} dm_attrs_t;
131
132typedef struct xfs_iocore {
133 void *io_obj; /* pointer to container
134 * inode or dcxvn structure */
135 struct xfs_mount *io_mount; /* fs mount struct ptr */
136#ifdef DEBUG
137 mrlock_t *io_lock; /* inode IO lock */
138 mrlock_t *io_iolock; /* inode IO lock */
139#endif
140
141 /* I/O state */
142 xfs_fsize_t io_new_size; /* sz when write completes */
143
144 /* Miscellaneous state. */
145 unsigned int io_flags; /* IO related flags */
146
147 /* DMAPI state */
148 dm_attrs_t io_dmattrs;
149
150} xfs_iocore_t;
151
152#define io_dmevmask io_dmattrs.da_dmevmask
153#define io_dmstate io_dmattrs.da_dmstate
154
155#define XFS_IO_INODE(io) ((xfs_inode_t *) ((io)->io_obj))
156#define XFS_IO_DCXVN(io) ((dcxvn_t *) ((io)->io_obj))
157
158/*
159 * Flags in the flags field
160 */
161
162#define XFS_IOCORE_RT 0x1
163
164/*
165 * xfs_iocore prototypes
166 */
167
168extern void xfs_iocore_inode_init(struct xfs_inode *);
169extern void xfs_iocore_inode_reinit(struct xfs_inode *);
170
171
172/*
173 * This is the type used in the xfs inode hash table.
174 * An array of these is allocated for each mounted
175 * file system to hash the inodes for that file system.
176 */
177typedef struct xfs_ihash {
178 struct xfs_inode *ih_next;
179 rwlock_t ih_lock;
180 uint ih_version;
181} xfs_ihash_t;
182
183#define XFS_IHASH(mp,ino) ((mp)->m_ihash + (((uint)(ino)) % (mp)->m_ihsize))
184
185/*
186 * This is the xfs inode cluster hash. This hash is used by xfs_iflush to
187 * find inodes that share a cluster and can be flushed to disk at the same
188 * time.
189 */
190typedef struct xfs_chashlist {
191 struct xfs_chashlist *chl_next;
David Chinner1fc5d952006-04-11 15:11:12 +1000192 struct xfs_chashlist *chl_prev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 struct xfs_inode *chl_ip;
194 xfs_daddr_t chl_blkno; /* starting block number of
195 * the cluster */
196 struct xfs_buf *chl_buf; /* the inode buffer */
197} xfs_chashlist_t;
198
199typedef struct xfs_chash {
200 xfs_chashlist_t *ch_list;
201 lock_t ch_lock;
202} xfs_chash_t;
203
204#define XFS_CHASH(mp,blk) ((mp)->m_chash + (((uint)blk) % (mp)->m_chsize))
205
206
207/*
208 * This is the xfs in-core inode structure.
209 * Most of the on-disk inode is embedded in the i_d field.
210 *
211 * The extent pointers/inline file space, however, are managed
212 * separately. The memory for this information is pointed to by
213 * the if_u1 unions depending on the type of the data.
214 * This is used to linearize the array of extents for fast in-core
215 * access. This is used until the file's number of extents
216 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers
217 * are accessed through the buffer cache.
218 *
219 * Other state kept in the in-core inode is used for identification,
220 * locking, transactional updating, etc of the inode.
221 *
222 * Generally, we do not want to hold the i_rlock while holding the
223 * i_ilock. Hierarchy is i_iolock followed by i_rlock.
224 *
225 * xfs_iptr_t contains all the inode fields upto and including the
226 * i_mnext and i_mprev fields, it is used as a marker in the inode
227 * chain off the mount structure by xfs_sync calls.
228 */
229
230typedef struct {
231 struct xfs_ihash *ip_hash; /* pointer to hash header */
232 struct xfs_inode *ip_next; /* inode hash link forw */
233 struct xfs_inode *ip_mnext; /* next inode in mount list */
234 struct xfs_inode *ip_mprev; /* ptr to prev inode */
235 struct xfs_inode **ip_prevp; /* ptr to prev i_next */
236 struct xfs_mount *ip_mount; /* fs mount struct ptr */
237} xfs_iptr_t;
238
239typedef struct xfs_inode {
240 /* Inode linking and identification information. */
241 struct xfs_ihash *i_hash; /* pointer to hash header */
242 struct xfs_inode *i_next; /* inode hash link forw */
243 struct xfs_inode *i_mnext; /* next inode in mount list */
244 struct xfs_inode *i_mprev; /* ptr to prev inode */
245 struct xfs_inode **i_prevp; /* ptr to prev i_next */
246 struct xfs_mount *i_mount; /* fs mount struct ptr */
247 struct list_head i_reclaim; /* reclaim list */
248 struct bhv_desc i_bhv_desc; /* inode behavior descriptor*/
249 struct xfs_dquot *i_udquot; /* user dquot */
250 struct xfs_dquot *i_gdquot; /* group dquot */
251
252 /* Inode location stuff */
253 xfs_ino_t i_ino; /* inode number (agno/agino)*/
254 xfs_daddr_t i_blkno; /* blkno of inode buffer */
255 ushort i_len; /* len of inode buffer */
256 ushort i_boffset; /* off of inode in buffer */
257
258 /* Extent information. */
259 xfs_ifork_t *i_afp; /* attribute fork pointer */
260 xfs_ifork_t i_df; /* data fork */
261
262 /* Transaction and locking information. */
263 struct xfs_trans *i_transp; /* ptr to owning transaction*/
264 struct xfs_inode_log_item *i_itemp; /* logging information */
265 mrlock_t i_lock; /* inode lock */
266 mrlock_t i_iolock; /* inode IO lock */
267 sema_t i_flock; /* inode flush lock */
268 atomic_t i_pincount; /* inode pin count */
269 wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */
270#ifdef HAVE_REFCACHE
271 struct xfs_inode **i_refcache; /* ptr to entry in ref cache */
272 struct xfs_inode *i_release; /* inode to unref */
273#endif
274 /* I/O state */
275 xfs_iocore_t i_iocore; /* I/O core */
276
277 /* Miscellaneous state. */
278 unsigned short i_flags; /* see defined flags below */
279 unsigned char i_update_core; /* timestamps/size is dirty */
280 unsigned char i_update_size; /* di_size field is dirty */
281 unsigned int i_gen; /* generation count */
282 unsigned int i_delayed_blks; /* count of delay alloc blks */
283
284 xfs_dinode_core_t i_d; /* most of ondisk inode */
285 xfs_chashlist_t *i_chash; /* cluster hash list header */
286 struct xfs_inode *i_cnext; /* cluster hash link forward */
287 struct xfs_inode *i_cprev; /* cluster hash link backward */
288
289 /* Trace buffers per inode. */
290#ifdef XFS_BMAP_TRACE
291 struct ktrace *i_xtrace; /* inode extent list trace */
292#endif
293#ifdef XFS_BMBT_TRACE
294 struct ktrace *i_btrace; /* inode bmap btree trace */
295#endif
296#ifdef XFS_RW_TRACE
297 struct ktrace *i_rwtrace; /* inode read/write trace */
298#endif
299#ifdef XFS_ILOCK_TRACE
300 struct ktrace *i_lock_trace; /* inode lock/unlock trace */
301#endif
302#ifdef XFS_DIR2_TRACE
303 struct ktrace *i_dir_trace; /* inode directory trace */
304#endif
305} xfs_inode_t;
306
307#endif /* __KERNEL__ */
308
309
310/*
311 * Fork handling.
312 */
Nathan Scotta844f452005-11-02 14:38:42 +1100313#define XFS_IFORK_PTR(ip,w) \
314 ((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315#define XFS_IFORK_Q(ip) XFS_CFORK_Q(&(ip)->i_d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316#define XFS_IFORK_DSIZE(ip) XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317#define XFS_IFORK_ASIZE(ip) XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318#define XFS_IFORK_SIZE(ip,w) XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319#define XFS_IFORK_FORMAT(ip,w) XFS_CFORK_FORMAT(&ip->i_d, w)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320#define XFS_IFORK_FMT_SET(ip,w,n) XFS_CFORK_FMT_SET(&ip->i_d, w, n)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321#define XFS_IFORK_NEXTENTS(ip,w) XFS_CFORK_NEXTENTS(&ip->i_d, w)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322#define XFS_IFORK_NEXT_SET(ip,w,n) XFS_CFORK_NEXT_SET(&ip->i_d, w, n)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323
324
325#ifdef __KERNEL__
326
327/*
328 * In-core inode flags.
329 */
330#define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */
331#define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */
332#define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */
333#define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */
334#define XFS_ISTALE 0x0010 /* inode has been staled */
335#define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */
336#define XFS_INEW 0x0040
337
338/*
339 * Flags for inode locking.
340 */
341#define XFS_IOLOCK_EXCL 0x001
342#define XFS_IOLOCK_SHARED 0x002
343#define XFS_ILOCK_EXCL 0x004
344#define XFS_ILOCK_SHARED 0x008
345#define XFS_IUNLOCK_NONOTIFY 0x010
Nathan Scott30dab212005-11-02 10:31:13 +1100346/* XFS_IOLOCK_NESTED 0x020 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347#define XFS_EXTENT_TOKEN_RD 0x040
348#define XFS_SIZE_TOKEN_RD 0x080
349#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
350#define XFS_WILLLEND 0x100 /* Always acquire tokens for lending */
351#define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
352#define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
353#define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND)
Nathan Scott30dab212005-11-02 10:31:13 +1100354/* XFS_SIZE_TOKEN_WANT 0x200 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355
356#define XFS_LOCK_MASK \
357 (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \
358 XFS_ILOCK_SHARED | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD | \
359 XFS_WILLLEND)
360
361/*
362 * Flags for xfs_iflush()
363 */
364#define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
365#define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
366#define XFS_IFLUSH_SYNC 3
367#define XFS_IFLUSH_ASYNC 4
368#define XFS_IFLUSH_DELWRI 5
369
370/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 * Flags for xfs_itruncate_start().
372 */
373#define XFS_ITRUNC_DEFINITE 0x1
374#define XFS_ITRUNC_MAYBE 0x2
375
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376#define XFS_ITOV(ip) BHV_TO_VNODE(XFS_ITOBHV(ip))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377#define XFS_ITOV_NULL(ip) BHV_TO_VNODE_NULL(XFS_ITOBHV(ip))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378#define XFS_ITOBHV(ip) ((struct bhv_desc *)(&((ip)->i_bhv_desc)))
Nathan Scotta844f452005-11-02 14:38:42 +1100379#define XFS_BHVTOI(bhvp) ((xfs_inode_t *)((char *)(bhvp) - \
380 (char *)&(((xfs_inode_t *)0)->i_bhv_desc)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381#define BHV_IS_XFS(bdp) (BHV_OPS(bdp) == &xfs_vnodeops)
382
383/*
384 * For multiple groups support: if S_ISGID bit is set in the parent
385 * directory, group of new file is set to that of the parent, and
386 * new subdirectory gets S_ISGID bit from parent.
387 */
388#define XFS_INHERIT_GID(pip, vfsp) \
389 (((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & S_ISGID))
390
391/*
392 * xfs_iget.c prototypes.
393 */
394
395#define IGET_CREATE 1
396
397void xfs_ihash_init(struct xfs_mount *);
398void xfs_ihash_free(struct xfs_mount *);
399void xfs_chash_init(struct xfs_mount *);
400void xfs_chash_free(struct xfs_mount *);
401xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
402 struct xfs_trans *);
403void xfs_inode_lock_init(xfs_inode_t *, struct vnode *);
404int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
405 uint, uint, xfs_inode_t **, xfs_daddr_t);
406void xfs_iput(xfs_inode_t *, uint);
407void xfs_iput_new(xfs_inode_t *, uint);
408void xfs_ilock(xfs_inode_t *, uint);
409int xfs_ilock_nowait(xfs_inode_t *, uint);
410void xfs_iunlock(xfs_inode_t *, uint);
411void xfs_ilock_demote(xfs_inode_t *, uint);
412void xfs_iflock(xfs_inode_t *);
413int xfs_iflock_nowait(xfs_inode_t *);
414uint xfs_ilock_map_shared(xfs_inode_t *);
415void xfs_iunlock_map_shared(xfs_inode_t *, uint);
416void xfs_ifunlock(xfs_inode_t *);
417void xfs_ireclaim(xfs_inode_t *);
418int xfs_finish_reclaim(xfs_inode_t *, int, int);
419int xfs_finish_reclaim_all(struct xfs_mount *, int);
420
421/*
422 * xfs_inode.c prototypes.
423 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424int xfs_itobp(struct xfs_mount *, struct xfs_trans *,
425 xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **,
Nathan Scottb12dd342006-03-17 17:26:04 +1100426 xfs_daddr_t, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
428 xfs_inode_t **, xfs_daddr_t);
429int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
Nathan Scott31b084a2005-05-05 13:25:00 -0700430int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
431 xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t,
432 int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433void xfs_xlate_dinode_core(xfs_caddr_t, struct xfs_dinode_core *,
434 int);
435uint xfs_ip2xflags(struct xfs_inode *);
436uint xfs_dic2xflags(struct xfs_dinode_core *);
437int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
438 struct xfs_bmap_free *);
439void xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
440int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
441 xfs_fsize_t, int, int);
442int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
443int xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *);
444void xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *,
445 xfs_fsize_t, int);
446
447void xfs_idestroy_fork(xfs_inode_t *, int);
448void xfs_idestroy(xfs_inode_t *);
449void xfs_idata_realloc(xfs_inode_t *, int, int);
450void xfs_iextract(xfs_inode_t *);
451void xfs_iext_realloc(xfs_inode_t *, int, int);
452void xfs_iroot_realloc(xfs_inode_t *, int, int);
453void xfs_ipin(xfs_inode_t *);
454void xfs_iunpin(xfs_inode_t *);
455int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
456int xfs_iflush(xfs_inode_t *, uint);
Christoph Hellwigefa80272005-06-21 15:37:17 +1000457void xfs_iflush_all(struct xfs_mount *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458int xfs_iaccess(xfs_inode_t *, mode_t, cred_t *);
459uint xfs_iroundup(uint);
460void xfs_ichgtime(xfs_inode_t *, int);
461xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
462void xfs_lock_inodes(xfs_inode_t **, int, int, uint);
463
Christoph Hellwig75e17b32006-01-11 20:58:44 +1100464xfs_inode_t *xfs_vtoi(struct vnode *vp);
465
Christoph Hellwig42fe2b12006-01-11 15:35:17 +1100466void xfs_synchronize_atime(xfs_inode_t *);
467
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100468xfs_bmbt_rec_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
469void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
470 xfs_bmbt_irec_t *);
471void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100472void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100473void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int);
474void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
475void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100476void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100477void xfs_iext_realloc_direct(xfs_ifork_t *, int);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100478void xfs_iext_realloc_indirect(xfs_ifork_t *, int);
479void xfs_iext_indirect_to_direct(xfs_ifork_t *);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100480void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
481void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
482void xfs_iext_destroy(xfs_ifork_t *);
Mandy Kirkconnell8867bc92006-03-17 17:25:04 +1100483xfs_bmbt_rec_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100484xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
485xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
486void xfs_iext_irec_init(xfs_ifork_t *);
487xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
488void xfs_iext_irec_remove(xfs_ifork_t *, int);
489void xfs_iext_irec_compact(xfs_ifork_t *);
490void xfs_iext_irec_compact_pages(xfs_ifork_t *);
491void xfs_iext_irec_compact_full(xfs_ifork_t *);
492void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100493
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
495
496#ifdef DEBUG
497void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t);
498#else /* DEBUG */
499#define xfs_isize_check(mp, ip, isize)
500#endif /* DEBUG */
501
502#if defined(DEBUG)
503void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
504#else
505#define xfs_inobp_check(mp, bp)
506#endif /* DEBUG */
507
508extern struct kmem_zone *xfs_chashlist_zone;
509extern struct kmem_zone *xfs_ifork_zone;
510extern struct kmem_zone *xfs_inode_zone;
511extern struct kmem_zone *xfs_ili_zone;
512extern struct vnodeops xfs_vnodeops;
513
514#endif /* __KERNEL__ */
515
516#endif /* __XFS_INODE_H__ */