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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;
Nathan Scott67fcaa72006-06-09 17:00:52 +1000105struct bhv_vnode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106struct cred;
107struct ktrace;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108struct 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 */
David Chinnerf273ab82006-09-28 11:06:03 +1000270 spinlock_t i_flags_lock; /* inode i_flags lock */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271#ifdef HAVE_REFCACHE
272 struct xfs_inode **i_refcache; /* ptr to entry in ref cache */
273 struct xfs_inode *i_release; /* inode to unref */
274#endif
275 /* I/O state */
276 xfs_iocore_t i_iocore; /* I/O core */
277
278 /* Miscellaneous state. */
279 unsigned short i_flags; /* see defined flags below */
280 unsigned char i_update_core; /* timestamps/size is dirty */
281 unsigned char i_update_size; /* di_size field is dirty */
282 unsigned int i_gen; /* generation count */
283 unsigned int i_delayed_blks; /* count of delay alloc blks */
284
285 xfs_dinode_core_t i_d; /* most of ondisk inode */
286 xfs_chashlist_t *i_chash; /* cluster hash list header */
287 struct xfs_inode *i_cnext; /* cluster hash link forward */
288 struct xfs_inode *i_cprev; /* cluster hash link backward */
289
290 /* Trace buffers per inode. */
291#ifdef XFS_BMAP_TRACE
292 struct ktrace *i_xtrace; /* inode extent list trace */
293#endif
294#ifdef XFS_BMBT_TRACE
295 struct ktrace *i_btrace; /* inode bmap btree trace */
296#endif
297#ifdef XFS_RW_TRACE
298 struct ktrace *i_rwtrace; /* inode read/write trace */
299#endif
300#ifdef XFS_ILOCK_TRACE
301 struct ktrace *i_lock_trace; /* inode lock/unlock trace */
302#endif
303#ifdef XFS_DIR2_TRACE
304 struct ktrace *i_dir_trace; /* inode directory trace */
305#endif
306} xfs_inode_t;
307
David Chinner7a18c382006-11-11 18:04:54 +1100308
309/*
310 * i_flags helper functions
311 */
312static inline void
313__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
314{
315 ip->i_flags |= flags;
316}
317
318static inline void
319xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
320{
321 spin_lock(&ip->i_flags_lock);
322 __xfs_iflags_set(ip, flags);
323 spin_unlock(&ip->i_flags_lock);
324}
325
326static inline void
327xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
328{
329 spin_lock(&ip->i_flags_lock);
330 ip->i_flags &= ~flags;
331 spin_unlock(&ip->i_flags_lock);
332}
333
334static inline int
335__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
336{
337 return (ip->i_flags & flags);
338}
339
340static inline int
341xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
342{
343 int ret;
344 spin_lock(&ip->i_flags_lock);
345 ret = __xfs_iflags_test(ip, flags);
346 spin_unlock(&ip->i_flags_lock);
347 return ret;
348}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349#endif /* __KERNEL__ */
350
351
352/*
353 * Fork handling.
354 */
Nathan Scotta844f452005-11-02 14:38:42 +1100355#define XFS_IFORK_PTR(ip,w) \
356 ((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357#define XFS_IFORK_Q(ip) XFS_CFORK_Q(&(ip)->i_d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358#define XFS_IFORK_DSIZE(ip) XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359#define XFS_IFORK_ASIZE(ip) XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360#define XFS_IFORK_SIZE(ip,w) XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361#define XFS_IFORK_FORMAT(ip,w) XFS_CFORK_FORMAT(&ip->i_d, w)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362#define XFS_IFORK_FMT_SET(ip,w,n) XFS_CFORK_FMT_SET(&ip->i_d, w, n)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363#define XFS_IFORK_NEXTENTS(ip,w) XFS_CFORK_NEXTENTS(&ip->i_d, w)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364#define XFS_IFORK_NEXT_SET(ip,w,n) XFS_CFORK_NEXT_SET(&ip->i_d, w, n)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
366
367#ifdef __KERNEL__
368
369/*
370 * In-core inode flags.
371 */
372#define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */
373#define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */
374#define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */
375#define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */
376#define XFS_ISTALE 0x0010 /* inode has been staled */
377#define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */
378#define XFS_INEW 0x0040
379
380/*
381 * Flags for inode locking.
382 */
383#define XFS_IOLOCK_EXCL 0x001
384#define XFS_IOLOCK_SHARED 0x002
385#define XFS_ILOCK_EXCL 0x004
386#define XFS_ILOCK_SHARED 0x008
387#define XFS_IUNLOCK_NONOTIFY 0x010
Nathan Scott30dab212005-11-02 10:31:13 +1100388/* XFS_IOLOCK_NESTED 0x020 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389#define XFS_EXTENT_TOKEN_RD 0x040
390#define XFS_SIZE_TOKEN_RD 0x080
391#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD)
392#define XFS_WILLLEND 0x100 /* Always acquire tokens for lending */
393#define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND)
394#define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND)
395#define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND)
Nathan Scott30dab212005-11-02 10:31:13 +1100396/* XFS_SIZE_TOKEN_WANT 0x200 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
398#define XFS_LOCK_MASK \
399 (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \
400 XFS_ILOCK_SHARED | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD | \
401 XFS_WILLLEND)
402
403/*
404 * Flags for xfs_iflush()
405 */
406#define XFS_IFLUSH_DELWRI_ELSE_SYNC 1
407#define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2
408#define XFS_IFLUSH_SYNC 3
409#define XFS_IFLUSH_ASYNC 4
410#define XFS_IFLUSH_DELWRI 5
411
412/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 * Flags for xfs_itruncate_start().
414 */
415#define XFS_ITRUNC_DEFINITE 0x1
416#define XFS_ITRUNC_MAYBE 0x2
417
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418#define XFS_ITOV(ip) BHV_TO_VNODE(XFS_ITOBHV(ip))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419#define XFS_ITOV_NULL(ip) BHV_TO_VNODE_NULL(XFS_ITOBHV(ip))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420#define XFS_ITOBHV(ip) ((struct bhv_desc *)(&((ip)->i_bhv_desc)))
Nathan Scotta844f452005-11-02 14:38:42 +1100421#define XFS_BHVTOI(bhvp) ((xfs_inode_t *)((char *)(bhvp) - \
422 (char *)&(((xfs_inode_t *)0)->i_bhv_desc)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423#define BHV_IS_XFS(bdp) (BHV_OPS(bdp) == &xfs_vnodeops)
424
425/*
426 * For multiple groups support: if S_ISGID bit is set in the parent
427 * directory, group of new file is set to that of the parent, and
428 * new subdirectory gets S_ISGID bit from parent.
429 */
430#define XFS_INHERIT_GID(pip, vfsp) \
431 (((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & S_ISGID))
432
433/*
Nathan Scott745b1f472006-09-28 11:02:23 +1000434 * Flags for xfs_iget()
435 */
436#define XFS_IGET_CREATE 0x1
437#define XFS_IGET_BULKSTAT 0x2
438
439/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 * xfs_iget.c prototypes.
441 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442void xfs_ihash_init(struct xfs_mount *);
443void xfs_ihash_free(struct xfs_mount *);
444void xfs_chash_init(struct xfs_mount *);
445void xfs_chash_free(struct xfs_mount *);
446xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t,
447 struct xfs_trans *);
Nathan Scott67fcaa72006-06-09 17:00:52 +1000448void xfs_inode_lock_init(xfs_inode_t *, struct bhv_vnode *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
450 uint, uint, xfs_inode_t **, xfs_daddr_t);
451void xfs_iput(xfs_inode_t *, uint);
452void xfs_iput_new(xfs_inode_t *, uint);
453void xfs_ilock(xfs_inode_t *, uint);
454int xfs_ilock_nowait(xfs_inode_t *, uint);
455void xfs_iunlock(xfs_inode_t *, uint);
456void xfs_ilock_demote(xfs_inode_t *, uint);
457void xfs_iflock(xfs_inode_t *);
458int xfs_iflock_nowait(xfs_inode_t *);
459uint xfs_ilock_map_shared(xfs_inode_t *);
460void xfs_iunlock_map_shared(xfs_inode_t *, uint);
461void xfs_ifunlock(xfs_inode_t *);
462void xfs_ireclaim(xfs_inode_t *);
463int xfs_finish_reclaim(xfs_inode_t *, int, int);
464int xfs_finish_reclaim_all(struct xfs_mount *, int);
465
466/*
467 * xfs_inode.c prototypes.
468 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469int xfs_itobp(struct xfs_mount *, struct xfs_trans *,
470 xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **,
Nathan Scottb12dd342006-03-17 17:26:04 +1100471 xfs_daddr_t, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
Nathan Scott745b1f472006-09-28 11:02:23 +1000473 xfs_inode_t **, xfs_daddr_t, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int);
Nathan Scott31b084a2005-05-05 13:25:00 -0700475int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t,
476 xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t,
477 int, struct xfs_buf **, boolean_t *, xfs_inode_t **);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478void xfs_xlate_dinode_core(xfs_caddr_t, struct xfs_dinode_core *,
479 int);
480uint xfs_ip2xflags(struct xfs_inode *);
481uint xfs_dic2xflags(struct xfs_dinode_core *);
482int xfs_ifree(struct xfs_trans *, xfs_inode_t *,
483 struct xfs_bmap_free *);
484void xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t);
485int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *,
486 xfs_fsize_t, int, int);
487int xfs_iunlink(struct xfs_trans *, xfs_inode_t *);
488int xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *);
489void xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *,
490 xfs_fsize_t, int);
491
492void xfs_idestroy_fork(xfs_inode_t *, int);
493void xfs_idestroy(xfs_inode_t *);
494void xfs_idata_realloc(xfs_inode_t *, int, int);
495void xfs_iextract(xfs_inode_t *);
496void xfs_iext_realloc(xfs_inode_t *, int, int);
497void xfs_iroot_realloc(xfs_inode_t *, int, int);
498void xfs_ipin(xfs_inode_t *);
499void xfs_iunpin(xfs_inode_t *);
500int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int);
501int xfs_iflush(xfs_inode_t *, uint);
Christoph Hellwigefa80272005-06-21 15:37:17 +1000502void xfs_iflush_all(struct xfs_mount *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700503int xfs_iaccess(xfs_inode_t *, mode_t, cred_t *);
504uint xfs_iroundup(uint);
505void xfs_ichgtime(xfs_inode_t *, int);
506xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
507void xfs_lock_inodes(xfs_inode_t **, int, int, uint);
508
Nathan Scott67fcaa72006-06-09 17:00:52 +1000509xfs_inode_t *xfs_vtoi(struct bhv_vnode *vp);
Christoph Hellwig75e17b32006-01-11 20:58:44 +1100510
Christoph Hellwig42fe2b12006-01-11 15:35:17 +1100511void xfs_synchronize_atime(xfs_inode_t *);
512
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100513xfs_bmbt_rec_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t);
514void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t,
515 xfs_bmbt_irec_t *);
516void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100517void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100518void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int);
519void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int);
520void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100521void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100522void xfs_iext_realloc_direct(xfs_ifork_t *, int);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100523void xfs_iext_realloc_indirect(xfs_ifork_t *, int);
524void xfs_iext_indirect_to_direct(xfs_ifork_t *);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100525void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t);
526void xfs_iext_inline_to_direct(xfs_ifork_t *, int);
527void xfs_iext_destroy(xfs_ifork_t *);
Mandy Kirkconnell8867bc92006-03-17 17:25:04 +1100528xfs_bmbt_rec_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *);
Mandy Kirkconnell0293ce32006-03-14 13:30:23 +1100529xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *);
530xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int);
531void xfs_iext_irec_init(xfs_ifork_t *);
532xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int);
533void xfs_iext_irec_remove(xfs_ifork_t *, int);
534void xfs_iext_irec_compact(xfs_ifork_t *);
535void xfs_iext_irec_compact_pages(xfs_ifork_t *);
536void xfs_iext_irec_compact_full(xfs_ifork_t *);
537void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int);
Mandy Kirkconnell4eea22f2006-03-14 13:29:52 +1100538
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
540
541#ifdef DEBUG
542void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t);
543#else /* DEBUG */
544#define xfs_isize_check(mp, ip, isize)
545#endif /* DEBUG */
546
547#if defined(DEBUG)
548void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
549#else
550#define xfs_inobp_check(mp, bp)
551#endif /* DEBUG */
552
553extern struct kmem_zone *xfs_chashlist_zone;
554extern struct kmem_zone *xfs_ifork_zone;
555extern struct kmem_zone *xfs_inode_zone;
556extern struct kmem_zone *xfs_ili_zone;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557
558#endif /* __KERNEL__ */
559
560#endif /* __XFS_INODE_H__ */