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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 LT |
17 | */ |
18 | #ifndef __XFS_INODE_H__ | |
19 | #define __XFS_INODE_H__ | |
20 | ||
a844f451 NS |
21 | /* |
22 | * Fork identifiers. | |
23 | */ | |
24 | #define XFS_DATA_FORK 0 | |
25 | #define XFS_ATTR_FORK 1 | |
26 | ||
0293ce3a MK |
27 | /* |
28 | * 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 | */ | |
46 | typedef 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 | ||
1da177e4 LT |
52 | /* |
53 | * File incore extent information, present for each of data & attr forks. | |
54 | */ | |
0293ce3a MK |
55 | #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 | |
1da177e4 LT |
59 | typedef 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 */ | |
0293ce3a | 69 | xfs_ext_irec_t *if_ext_irec; /* irec map file exts */ |
1da177e4 LT |
70 | 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 | */ | |
0293ce3a MK |
92 | #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 */ | |
1da177e4 LT |
96 | |
97 | /* | |
b12dd342 | 98 | * Flags for xfs_itobp(), xfs_imap() and xfs_dilocate(). |
1da177e4 | 99 | */ |
b12dd342 NS |
100 | #define XFS_IMAP_LOOKUP 0x1 |
101 | #define XFS_IMAP_BULKSTAT 0x2 | |
1da177e4 | 102 | |
1da177e4 LT |
103 | #ifdef __KERNEL__ |
104 | struct bhv_desc; | |
67fcaa73 | 105 | struct bhv_vnode; |
1da177e4 LT |
106 | struct cred; |
107 | struct ktrace; | |
1da177e4 LT |
108 | struct xfs_buf; |
109 | struct xfs_bmap_free; | |
110 | struct xfs_bmbt_irec; | |
111 | struct xfs_bmbt_block; | |
112 | struct xfs_inode; | |
113 | struct xfs_inode_log_item; | |
114 | struct xfs_mount; | |
115 | struct xfs_trans; | |
116 | struct xfs_dquot; | |
117 | ||
118 | #if defined(XFS_ILOCK_TRACE) | |
119 | #define XFS_ILOCK_KTRACE_SIZE 32 | |
120 | extern ktrace_t *xfs_ilock_trace_buf; | |
121 | extern 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 | ||
1da177e4 LT |
126 | typedef 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 | ||
132 | typedef 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 | ||
168 | extern void xfs_iocore_inode_init(struct xfs_inode *); | |
169 | extern 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 | */ | |
177 | typedef 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 | */ | |
190 | typedef struct xfs_chashlist { | |
191 | struct xfs_chashlist *chl_next; | |
1fc5d959 | 192 | struct xfs_chashlist *chl_prev; |
1da177e4 LT |
193 | 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 | ||
199 | typedef 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 | ||
230 | typedef 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 | ||
239 | typedef 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 */ | |
f273ab84 | 270 | spinlock_t i_flags_lock; /* inode i_flags lock */ |
1da177e4 LT |
271 | #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 | ||
308 | #endif /* __KERNEL__ */ | |
309 | ||
310 | ||
311 | /* | |
312 | * Fork handling. | |
313 | */ | |
a844f451 NS |
314 | #define XFS_IFORK_PTR(ip,w) \ |
315 | ((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp) | |
1da177e4 | 316 | #define XFS_IFORK_Q(ip) XFS_CFORK_Q(&(ip)->i_d) |
1da177e4 | 317 | #define XFS_IFORK_DSIZE(ip) XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount) |
1da177e4 | 318 | #define XFS_IFORK_ASIZE(ip) XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount) |
1da177e4 | 319 | #define XFS_IFORK_SIZE(ip,w) XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w) |
1da177e4 | 320 | #define XFS_IFORK_FORMAT(ip,w) XFS_CFORK_FORMAT(&ip->i_d, w) |
1da177e4 | 321 | #define XFS_IFORK_FMT_SET(ip,w,n) XFS_CFORK_FMT_SET(&ip->i_d, w, n) |
1da177e4 | 322 | #define XFS_IFORK_NEXTENTS(ip,w) XFS_CFORK_NEXTENTS(&ip->i_d, w) |
1da177e4 | 323 | #define XFS_IFORK_NEXT_SET(ip,w,n) XFS_CFORK_NEXT_SET(&ip->i_d, w, n) |
1da177e4 LT |
324 | |
325 | ||
326 | #ifdef __KERNEL__ | |
327 | ||
328 | /* | |
329 | * In-core inode flags. | |
330 | */ | |
331 | #define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */ | |
332 | #define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */ | |
333 | #define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */ | |
334 | #define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */ | |
335 | #define XFS_ISTALE 0x0010 /* inode has been staled */ | |
336 | #define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */ | |
337 | #define XFS_INEW 0x0040 | |
338 | ||
339 | /* | |
340 | * Flags for inode locking. | |
341 | */ | |
342 | #define XFS_IOLOCK_EXCL 0x001 | |
343 | #define XFS_IOLOCK_SHARED 0x002 | |
344 | #define XFS_ILOCK_EXCL 0x004 | |
345 | #define XFS_ILOCK_SHARED 0x008 | |
346 | #define XFS_IUNLOCK_NONOTIFY 0x010 | |
30dab21a | 347 | /* XFS_IOLOCK_NESTED 0x020 */ |
1da177e4 LT |
348 | #define XFS_EXTENT_TOKEN_RD 0x040 |
349 | #define XFS_SIZE_TOKEN_RD 0x080 | |
350 | #define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD) | |
351 | #define XFS_WILLLEND 0x100 /* Always acquire tokens for lending */ | |
352 | #define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND) | |
353 | #define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND) | |
354 | #define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND) | |
30dab21a | 355 | /* XFS_SIZE_TOKEN_WANT 0x200 */ |
1da177e4 LT |
356 | |
357 | #define XFS_LOCK_MASK \ | |
358 | (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED | XFS_ILOCK_EXCL | \ | |
359 | XFS_ILOCK_SHARED | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD | \ | |
360 | XFS_WILLLEND) | |
361 | ||
362 | /* | |
363 | * Flags for xfs_iflush() | |
364 | */ | |
365 | #define XFS_IFLUSH_DELWRI_ELSE_SYNC 1 | |
366 | #define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2 | |
367 | #define XFS_IFLUSH_SYNC 3 | |
368 | #define XFS_IFLUSH_ASYNC 4 | |
369 | #define XFS_IFLUSH_DELWRI 5 | |
370 | ||
1da177e4 LT |
371 | /* |
372 | * Flags for xfs_itruncate_start(). | |
373 | */ | |
374 | #define XFS_ITRUNC_DEFINITE 0x1 | |
375 | #define XFS_ITRUNC_MAYBE 0x2 | |
376 | ||
1da177e4 | 377 | #define XFS_ITOV(ip) BHV_TO_VNODE(XFS_ITOBHV(ip)) |
1da177e4 | 378 | #define XFS_ITOV_NULL(ip) BHV_TO_VNODE_NULL(XFS_ITOBHV(ip)) |
1da177e4 | 379 | #define XFS_ITOBHV(ip) ((struct bhv_desc *)(&((ip)->i_bhv_desc))) |
a844f451 NS |
380 | #define XFS_BHVTOI(bhvp) ((xfs_inode_t *)((char *)(bhvp) - \ |
381 | (char *)&(((xfs_inode_t *)0)->i_bhv_desc))) | |
1da177e4 LT |
382 | #define BHV_IS_XFS(bdp) (BHV_OPS(bdp) == &xfs_vnodeops) |
383 | ||
384 | /* | |
385 | * For multiple groups support: if S_ISGID bit is set in the parent | |
386 | * directory, group of new file is set to that of the parent, and | |
387 | * new subdirectory gets S_ISGID bit from parent. | |
388 | */ | |
389 | #define XFS_INHERIT_GID(pip, vfsp) \ | |
390 | (((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & S_ISGID)) | |
391 | ||
392 | /* | |
745b1f47 | 393 | * Flags for xfs_iget() |
1da177e4 | 394 | */ |
745b1f47 NS |
395 | #define XFS_IGET_CREATE 0x1 |
396 | #define XFS_IGET_BULKSTAT 0x2 | |
1da177e4 | 397 | |
745b1f47 NS |
398 | /* |
399 | * xfs_iget.c prototypes. | |
400 | */ | |
1da177e4 LT |
401 | void xfs_ihash_init(struct xfs_mount *); |
402 | void xfs_ihash_free(struct xfs_mount *); | |
403 | void xfs_chash_init(struct xfs_mount *); | |
404 | void xfs_chash_free(struct xfs_mount *); | |
405 | xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t, | |
406 | struct xfs_trans *); | |
67fcaa73 | 407 | void xfs_inode_lock_init(xfs_inode_t *, struct bhv_vnode *); |
1da177e4 LT |
408 | int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, |
409 | uint, uint, xfs_inode_t **, xfs_daddr_t); | |
410 | void xfs_iput(xfs_inode_t *, uint); | |
411 | void xfs_iput_new(xfs_inode_t *, uint); | |
412 | void xfs_ilock(xfs_inode_t *, uint); | |
413 | int xfs_ilock_nowait(xfs_inode_t *, uint); | |
414 | void xfs_iunlock(xfs_inode_t *, uint); | |
415 | void xfs_ilock_demote(xfs_inode_t *, uint); | |
416 | void xfs_iflock(xfs_inode_t *); | |
417 | int xfs_iflock_nowait(xfs_inode_t *); | |
418 | uint xfs_ilock_map_shared(xfs_inode_t *); | |
419 | void xfs_iunlock_map_shared(xfs_inode_t *, uint); | |
420 | void xfs_ifunlock(xfs_inode_t *); | |
421 | void xfs_ireclaim(xfs_inode_t *); | |
422 | int xfs_finish_reclaim(xfs_inode_t *, int, int); | |
423 | int xfs_finish_reclaim_all(struct xfs_mount *, int); | |
424 | ||
425 | /* | |
426 | * xfs_inode.c prototypes. | |
427 | */ | |
1da177e4 LT |
428 | int xfs_itobp(struct xfs_mount *, struct xfs_trans *, |
429 | xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **, | |
b12dd342 | 430 | xfs_daddr_t, uint); |
1da177e4 | 431 | int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, |
745b1f47 | 432 | xfs_inode_t **, xfs_daddr_t, uint); |
1da177e4 | 433 | int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int); |
31b084ae NS |
434 | int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t, |
435 | xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t, | |
436 | int, struct xfs_buf **, boolean_t *, xfs_inode_t **); | |
1da177e4 LT |
437 | void xfs_xlate_dinode_core(xfs_caddr_t, struct xfs_dinode_core *, |
438 | int); | |
439 | uint xfs_ip2xflags(struct xfs_inode *); | |
440 | uint xfs_dic2xflags(struct xfs_dinode_core *); | |
441 | int xfs_ifree(struct xfs_trans *, xfs_inode_t *, | |
442 | struct xfs_bmap_free *); | |
443 | void xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t); | |
444 | int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *, | |
445 | xfs_fsize_t, int, int); | |
446 | int xfs_iunlink(struct xfs_trans *, xfs_inode_t *); | |
447 | int xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *); | |
448 | void xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *, | |
449 | xfs_fsize_t, int); | |
450 | ||
451 | void xfs_idestroy_fork(xfs_inode_t *, int); | |
452 | void xfs_idestroy(xfs_inode_t *); | |
453 | void xfs_idata_realloc(xfs_inode_t *, int, int); | |
454 | void xfs_iextract(xfs_inode_t *); | |
455 | void xfs_iext_realloc(xfs_inode_t *, int, int); | |
456 | void xfs_iroot_realloc(xfs_inode_t *, int, int); | |
457 | void xfs_ipin(xfs_inode_t *); | |
458 | void xfs_iunpin(xfs_inode_t *); | |
459 | int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int); | |
460 | int xfs_iflush(xfs_inode_t *, uint); | |
efa80278 | 461 | void xfs_iflush_all(struct xfs_mount *); |
1da177e4 LT |
462 | int xfs_iaccess(xfs_inode_t *, mode_t, cred_t *); |
463 | uint xfs_iroundup(uint); | |
464 | void xfs_ichgtime(xfs_inode_t *, int); | |
465 | xfs_fsize_t xfs_file_last_byte(xfs_inode_t *); | |
466 | void xfs_lock_inodes(xfs_inode_t **, int, int, uint); | |
467 | ||
67fcaa73 | 468 | xfs_inode_t *xfs_vtoi(struct bhv_vnode *vp); |
75e17b3c | 469 | |
42fe2b1f CH |
470 | void xfs_synchronize_atime(xfs_inode_t *); |
471 | ||
4eea22f0 MK |
472 | xfs_bmbt_rec_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t); |
473 | void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t, | |
474 | xfs_bmbt_irec_t *); | |
475 | void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int); | |
0293ce3a | 476 | void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int); |
4eea22f0 MK |
477 | void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int); |
478 | void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int); | |
479 | void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int); | |
0293ce3a | 480 | void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int); |
4eea22f0 | 481 | void xfs_iext_realloc_direct(xfs_ifork_t *, int); |
0293ce3a MK |
482 | void xfs_iext_realloc_indirect(xfs_ifork_t *, int); |
483 | void xfs_iext_indirect_to_direct(xfs_ifork_t *); | |
4eea22f0 MK |
484 | void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t); |
485 | void xfs_iext_inline_to_direct(xfs_ifork_t *, int); | |
486 | void xfs_iext_destroy(xfs_ifork_t *); | |
8867bc9b | 487 | xfs_bmbt_rec_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *); |
0293ce3a MK |
488 | xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *); |
489 | xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int); | |
490 | void xfs_iext_irec_init(xfs_ifork_t *); | |
491 | xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int); | |
492 | void xfs_iext_irec_remove(xfs_ifork_t *, int); | |
493 | void xfs_iext_irec_compact(xfs_ifork_t *); | |
494 | void xfs_iext_irec_compact_pages(xfs_ifork_t *); | |
495 | void xfs_iext_irec_compact_full(xfs_ifork_t *); | |
496 | void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int); | |
4eea22f0 | 497 | |
1da177e4 LT |
498 | #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount)) |
499 | ||
500 | #ifdef DEBUG | |
501 | void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t); | |
502 | #else /* DEBUG */ | |
503 | #define xfs_isize_check(mp, ip, isize) | |
504 | #endif /* DEBUG */ | |
505 | ||
506 | #if defined(DEBUG) | |
507 | void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); | |
508 | #else | |
509 | #define xfs_inobp_check(mp, bp) | |
510 | #endif /* DEBUG */ | |
511 | ||
512 | extern struct kmem_zone *xfs_chashlist_zone; | |
513 | extern struct kmem_zone *xfs_ifork_zone; | |
514 | extern struct kmem_zone *xfs_inode_zone; | |
515 | extern struct kmem_zone *xfs_ili_zone; | |
1da177e4 LT |
516 | |
517 | #endif /* __KERNEL__ */ | |
518 | ||
519 | #endif /* __XFS_INODE_H__ */ |