1 /* 2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 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. 8 * 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. 13 * 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 17 */ 18 #ifndef __XFS_INODE_H__ 19 #define __XFS_INODE_H__ 20 21 struct posix_acl; 22 struct xfs_dinode; 23 struct xfs_inode; 24 25 /* 26 * Fork identifiers. 27 */ 28 #define XFS_DATA_FORK 0 29 #define XFS_ATTR_FORK 1 30 31 /* 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. 41 * 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. 49 */ 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 */ 54 } xfs_ext_irec_t; 55 56 /* 57 * File incore extent information, present for each of data & attr forks. 58 */ 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 struct xfs_btree_block *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 */ 71 union { 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 */ 75 } if_u1; 76 union { 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 */ 83 } if_u2; 84 } xfs_ifork_t; 85 86 /* 87 * Inode location information. Stored in the inode and passed to 88 * xfs_imap_to_bp() to get a buffer and dinode for a given inode. 89 */ 90 struct xfs_imap { 91 xfs_daddr_t im_blkno; /* starting BB of inode chunk */ 92 ushort im_len; /* length in BBs of inode chunk */ 93 ushort im_boffset; /* inode offset in block in bytes */ 94 }; 95 96 /* 97 * This is the xfs in-core inode structure. 98 * Most of the on-disk inode is embedded in the i_d field. 99 * 100 * The extent pointers/inline file space, however, are managed 101 * separately. The memory for this information is pointed to by 102 * the if_u1 unions depending on the type of the data. 103 * This is used to linearize the array of extents for fast in-core 104 * access. This is used until the file's number of extents 105 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers 106 * are accessed through the buffer cache. 107 * 108 * Other state kept in the in-core inode is used for identification, 109 * locking, transactional updating, etc of the inode. 110 * 111 * Generally, we do not want to hold the i_rlock while holding the 112 * i_ilock. Hierarchy is i_iolock followed by i_rlock. 113 * 114 * xfs_iptr_t contains all the inode fields upto and including the 115 * i_mnext and i_mprev fields, it is used as a marker in the inode 116 * chain off the mount structure by xfs_sync calls. 117 */ 118 119 typedef struct xfs_ictimestamp { 120 __int32_t t_sec; /* timestamp seconds */ 121 __int32_t t_nsec; /* timestamp nanoseconds */ 122 } xfs_ictimestamp_t; 123 124 /* 125 * NOTE: This structure must be kept identical to struct xfs_dinode 126 * in xfs_dinode.h except for the endianness annotations. 127 */ 128 typedef struct xfs_icdinode { 129 __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */ 130 __uint16_t di_mode; /* mode and type of file */ 131 __int8_t di_version; /* inode version */ 132 __int8_t di_format; /* format of di_c data */ 133 __uint16_t di_onlink; /* old number of links to file */ 134 __uint32_t di_uid; /* owner's user id */ 135 __uint32_t di_gid; /* owner's group id */ 136 __uint32_t di_nlink; /* number of links to file */ 137 __uint16_t di_projid_lo; /* lower part of owner's project id */ 138 __uint16_t di_projid_hi; /* higher part of owner's project id */ 139 __uint8_t di_pad[6]; /* unused, zeroed space */ 140 __uint16_t di_flushiter; /* incremented on flush */ 141 xfs_ictimestamp_t di_atime; /* time last accessed */ 142 xfs_ictimestamp_t di_mtime; /* time last modified */ 143 xfs_ictimestamp_t di_ctime; /* time created/inode modified */ 144 xfs_fsize_t di_size; /* number of bytes in file */ 145 xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */ 146 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ 147 xfs_extnum_t di_nextents; /* number of extents in data fork */ 148 xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ 149 __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ 150 __int8_t di_aformat; /* format of attr fork's data */ 151 __uint32_t di_dmevmask; /* DMIG event mask */ 152 __uint16_t di_dmstate; /* DMIG state info */ 153 __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ 154 __uint32_t di_gen; /* generation number */ 155 } xfs_icdinode_t; 156 157 /* 158 * Flags for xfs_ichgtime(). 159 */ 160 #define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */ 161 #define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */ 162 163 /* 164 * Per-fork incore inode flags. 165 */ 166 #define XFS_IFINLINE 0x01 /* Inline data is read in */ 167 #define XFS_IFEXTENTS 0x02 /* All extent pointers are read in */ 168 #define XFS_IFBROOT 0x04 /* i_broot points to the bmap b-tree root */ 169 #define XFS_IFEXTIREC 0x08 /* Indirection array of extent blocks */ 170 171 /* 172 * Fork handling. 173 */ 174 175 #define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0) 176 #define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3)) 177 178 #define XFS_IFORK_PTR(ip,w) \ 179 ((w) == XFS_DATA_FORK ? \ 180 &(ip)->i_df : \ 181 (ip)->i_afp) 182 #define XFS_IFORK_DSIZE(ip) \ 183 (XFS_IFORK_Q(ip) ? \ 184 XFS_IFORK_BOFF(ip) : \ 185 XFS_LITINO((ip)->i_mount)) 186 #define XFS_IFORK_ASIZE(ip) \ 187 (XFS_IFORK_Q(ip) ? \ 188 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \ 189 0) 190 #define XFS_IFORK_SIZE(ip,w) \ 191 ((w) == XFS_DATA_FORK ? \ 192 XFS_IFORK_DSIZE(ip) : \ 193 XFS_IFORK_ASIZE(ip)) 194 #define XFS_IFORK_FORMAT(ip,w) \ 195 ((w) == XFS_DATA_FORK ? \ 196 (ip)->i_d.di_format : \ 197 (ip)->i_d.di_aformat) 198 #define XFS_IFORK_FMT_SET(ip,w,n) \ 199 ((w) == XFS_DATA_FORK ? \ 200 ((ip)->i_d.di_format = (n)) : \ 201 ((ip)->i_d.di_aformat = (n))) 202 #define XFS_IFORK_NEXTENTS(ip,w) \ 203 ((w) == XFS_DATA_FORK ? \ 204 (ip)->i_d.di_nextents : \ 205 (ip)->i_d.di_anextents) 206 #define XFS_IFORK_NEXT_SET(ip,w,n) \ 207 ((w) == XFS_DATA_FORK ? \ 208 ((ip)->i_d.di_nextents = (n)) : \ 209 ((ip)->i_d.di_anextents = (n))) 210 211 212 213 #ifdef __KERNEL__ 214 215 struct bhv_desc; 216 struct xfs_buf; 217 struct xfs_bmap_free; 218 struct xfs_bmbt_irec; 219 struct xfs_inode_log_item; 220 struct xfs_mount; 221 struct xfs_trans; 222 struct xfs_dquot; 223 224 typedef struct dm_attrs_s { 225 __uint32_t da_dmevmask; /* DMIG event mask */ 226 __uint16_t da_dmstate; /* DMIG state info */ 227 __uint16_t da_pad; /* DMIG extra padding */ 228 } dm_attrs_t; 229 230 typedef struct xfs_inode { 231 /* Inode linking and identification information. */ 232 struct xfs_mount *i_mount; /* fs mount struct ptr */ 233 struct xfs_dquot *i_udquot; /* user dquot */ 234 struct xfs_dquot *i_gdquot; /* group dquot */ 235 236 /* Inode location stuff */ 237 xfs_ino_t i_ino; /* inode number (agno/agino)*/ 238 struct xfs_imap i_imap; /* location for xfs_imap() */ 239 240 /* Extent information. */ 241 xfs_ifork_t *i_afp; /* attribute fork pointer */ 242 xfs_ifork_t i_df; /* data fork */ 243 244 /* Transaction and locking information. */ 245 struct xfs_trans *i_transp; /* ptr to owning transaction*/ 246 struct xfs_inode_log_item *i_itemp; /* logging information */ 247 mrlock_t i_lock; /* inode lock */ 248 mrlock_t i_iolock; /* inode IO lock */ 249 struct completion i_flush; /* inode flush completion q */ 250 atomic_t i_pincount; /* inode pin count */ 251 wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */ 252 spinlock_t i_flags_lock; /* inode i_flags lock */ 253 /* Miscellaneous state. */ 254 unsigned short i_flags; /* see defined flags below */ 255 unsigned char i_update_core; /* timestamps/size is dirty */ 256 unsigned int i_delayed_blks; /* count of delay alloc blks */ 257 258 xfs_icdinode_t i_d; /* most of ondisk inode */ 259 260 xfs_fsize_t i_size; /* in-memory size */ 261 xfs_fsize_t i_new_size; /* size when write completes */ 262 atomic_t i_iocount; /* outstanding I/O count */ 263 264 /* VFS inode */ 265 struct inode i_vnode; /* embedded VFS inode */ 266 } xfs_inode_t; 267 268 #define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \ 269 (ip)->i_size : (ip)->i_d.di_size; 270 271 /* Convert from vfs inode to xfs inode */ 272 static inline struct xfs_inode *XFS_I(struct inode *inode) 273 { 274 return container_of(inode, struct xfs_inode, i_vnode); 275 } 276 277 /* convert from xfs inode to vfs inode */ 278 static inline struct inode *VFS_I(struct xfs_inode *ip) 279 { 280 return &ip->i_vnode; 281 } 282 283 /* 284 * i_flags helper functions 285 */ 286 static inline void 287 __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags) 288 { 289 ip->i_flags |= flags; 290 } 291 292 static inline void 293 xfs_iflags_set(xfs_inode_t *ip, unsigned short flags) 294 { 295 spin_lock(&ip->i_flags_lock); 296 __xfs_iflags_set(ip, flags); 297 spin_unlock(&ip->i_flags_lock); 298 } 299 300 static inline void 301 xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags) 302 { 303 spin_lock(&ip->i_flags_lock); 304 ip->i_flags &= ~flags; 305 spin_unlock(&ip->i_flags_lock); 306 } 307 308 static inline int 309 __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags) 310 { 311 return (ip->i_flags & flags); 312 } 313 314 static inline int 315 xfs_iflags_test(xfs_inode_t *ip, unsigned short flags) 316 { 317 int ret; 318 spin_lock(&ip->i_flags_lock); 319 ret = __xfs_iflags_test(ip, flags); 320 spin_unlock(&ip->i_flags_lock); 321 return ret; 322 } 323 324 static inline int 325 xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags) 326 { 327 int ret; 328 329 spin_lock(&ip->i_flags_lock); 330 ret = ip->i_flags & flags; 331 if (ret) 332 ip->i_flags &= ~flags; 333 spin_unlock(&ip->i_flags_lock); 334 return ret; 335 } 336 337 /* 338 * Project quota id helpers (previously projid was 16bit only 339 * and using two 16bit values to hold new 32bit projid was choosen 340 * to retain compatibility with "old" filesystems). 341 */ 342 static inline prid_t 343 xfs_get_projid(struct xfs_inode *ip) 344 { 345 return (prid_t)ip->i_d.di_projid_hi << 16 | ip->i_d.di_projid_lo; 346 } 347 348 static inline void 349 xfs_set_projid(struct xfs_inode *ip, 350 prid_t projid) 351 { 352 ip->i_d.di_projid_hi = (__uint16_t) (projid >> 16); 353 ip->i_d.di_projid_lo = (__uint16_t) (projid & 0xffff); 354 } 355 356 /* 357 * Manage the i_flush queue embedded in the inode. This completion 358 * queue synchronizes processes attempting to flush the in-core 359 * inode back to disk. 360 */ 361 static inline void xfs_iflock(xfs_inode_t *ip) 362 { 363 wait_for_completion(&ip->i_flush); 364 } 365 366 static inline int xfs_iflock_nowait(xfs_inode_t *ip) 367 { 368 return try_wait_for_completion(&ip->i_flush); 369 } 370 371 static inline void xfs_ifunlock(xfs_inode_t *ip) 372 { 373 complete(&ip->i_flush); 374 } 375 376 /* 377 * In-core inode flags. 378 */ 379 #define XFS_IRECLAIM 0x0001 /* started reclaiming this inode */ 380 #define XFS_ISTALE 0x0002 /* inode has been staled */ 381 #define XFS_IRECLAIMABLE 0x0004 /* inode can be reclaimed */ 382 #define XFS_INEW 0x0008 /* inode has just been allocated */ 383 #define XFS_IFILESTREAM 0x0010 /* inode is in a filestream directory */ 384 #define XFS_ITRUNCATED 0x0020 /* truncated down so flush-on-close */ 385 #define XFS_IDIRTY_RELEASE 0x0040 /* dirty release already seen */ 386 387 /* 388 * Flags for inode locking. 389 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield) 390 * 1<<16 - 1<<32-1 -- lockdep annotation (integers) 391 */ 392 #define XFS_IOLOCK_EXCL (1<<0) 393 #define XFS_IOLOCK_SHARED (1<<1) 394 #define XFS_ILOCK_EXCL (1<<2) 395 #define XFS_ILOCK_SHARED (1<<3) 396 #define XFS_IUNLOCK_NONOTIFY (1<<4) 397 398 #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \ 399 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED) 400 401 #define XFS_LOCK_FLAGS \ 402 { XFS_IOLOCK_EXCL, "IOLOCK_EXCL" }, \ 403 { XFS_IOLOCK_SHARED, "IOLOCK_SHARED" }, \ 404 { XFS_ILOCK_EXCL, "ILOCK_EXCL" }, \ 405 { XFS_ILOCK_SHARED, "ILOCK_SHARED" }, \ 406 { XFS_IUNLOCK_NONOTIFY, "IUNLOCK_NONOTIFY" } 407 408 409 /* 410 * Flags for lockdep annotations. 411 * 412 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes 413 * (ie directory operations that require locking a directory inode and 414 * an entry inode). The first inode gets locked with this flag so it 415 * gets a lockdep subclass of 1 and the second lock will have a lockdep 416 * subclass of 0. 417 * 418 * XFS_LOCK_INUMORDER - for locking several inodes at the some time 419 * with xfs_lock_inodes(). This flag is used as the starting subclass 420 * and each subsequent lock acquired will increment the subclass by one. 421 * So the first lock acquired will have a lockdep subclass of 2, the 422 * second lock will have a lockdep subclass of 3, and so on. It is 423 * the responsibility of the class builder to shift this to the correct 424 * portion of the lock_mode lockdep mask. 425 */ 426 #define XFS_LOCK_PARENT 1 427 #define XFS_LOCK_INUMORDER 2 428 429 #define XFS_IOLOCK_SHIFT 16 430 #define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT) 431 432 #define XFS_ILOCK_SHIFT 24 433 #define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT) 434 435 #define XFS_IOLOCK_DEP_MASK 0x00ff0000 436 #define XFS_ILOCK_DEP_MASK 0xff000000 437 #define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK) 438 439 #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT) 440 #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT) 441 442 extern struct lock_class_key xfs_iolock_reclaimable; 443 444 /* 445 * Flags for xfs_itruncate_start(). 446 */ 447 #define XFS_ITRUNC_DEFINITE 0x1 448 #define XFS_ITRUNC_MAYBE 0x2 449 450 #define XFS_ITRUNC_FLAGS \ 451 { XFS_ITRUNC_DEFINITE, "DEFINITE" }, \ 452 { XFS_ITRUNC_MAYBE, "MAYBE" } 453 454 /* 455 * For multiple groups support: if S_ISGID bit is set in the parent 456 * directory, group of new file is set to that of the parent, and 457 * new subdirectory gets S_ISGID bit from parent. 458 */ 459 #define XFS_INHERIT_GID(pip) \ 460 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \ 461 ((pip)->i_d.di_mode & S_ISGID)) 462 463 /* 464 * xfs_iget.c prototypes. 465 */ 466 int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, 467 uint, uint, xfs_inode_t **); 468 void xfs_ilock(xfs_inode_t *, uint); 469 int xfs_ilock_nowait(xfs_inode_t *, uint); 470 void xfs_iunlock(xfs_inode_t *, uint); 471 void xfs_ilock_demote(xfs_inode_t *, uint); 472 int xfs_isilocked(xfs_inode_t *, uint); 473 uint xfs_ilock_map_shared(xfs_inode_t *); 474 void xfs_iunlock_map_shared(xfs_inode_t *, uint); 475 void xfs_inode_free(struct xfs_inode *ip); 476 477 /* 478 * xfs_inode.c prototypes. 479 */ 480 int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t, 481 xfs_nlink_t, xfs_dev_t, prid_t, int, 482 struct xfs_buf **, boolean_t *, xfs_inode_t **); 483 484 uint xfs_ip2xflags(struct xfs_inode *); 485 uint xfs_dic2xflags(struct xfs_dinode *); 486 int xfs_ifree(struct xfs_trans *, xfs_inode_t *, 487 struct xfs_bmap_free *); 488 int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t); 489 int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *, 490 xfs_fsize_t, int, int); 491 int xfs_iunlink(struct xfs_trans *, xfs_inode_t *); 492 493 void xfs_iext_realloc(xfs_inode_t *, int, int); 494 void xfs_iunpin_wait(xfs_inode_t *); 495 int xfs_iflush(xfs_inode_t *, uint); 496 void xfs_lock_inodes(xfs_inode_t **, int, uint); 497 void xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint); 498 499 void xfs_synchronize_times(xfs_inode_t *); 500 void xfs_mark_inode_dirty(xfs_inode_t *); 501 void xfs_mark_inode_dirty_sync(xfs_inode_t *); 502 503 #define IHOLD(ip) \ 504 do { \ 505 ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \ 506 ihold(VFS_I(ip)); \ 507 trace_xfs_ihold(ip, _THIS_IP_); \ 508 } while (0) 509 510 #define IRELE(ip) \ 511 do { \ 512 trace_xfs_irele(ip, _THIS_IP_); \ 513 iput(VFS_I(ip)); \ 514 } while (0) 515 516 #endif /* __KERNEL__ */ 517 518 /* 519 * Flags for xfs_iget() 520 */ 521 #define XFS_IGET_CREATE 0x1 522 #define XFS_IGET_UNTRUSTED 0x2 523 524 int xfs_inotobp(struct xfs_mount *, struct xfs_trans *, 525 xfs_ino_t, struct xfs_dinode **, 526 struct xfs_buf **, int *, uint); 527 int xfs_itobp(struct xfs_mount *, struct xfs_trans *, 528 struct xfs_inode *, struct xfs_dinode **, 529 struct xfs_buf **, uint); 530 int xfs_iread(struct xfs_mount *, struct xfs_trans *, 531 struct xfs_inode *, uint); 532 void xfs_dinode_to_disk(struct xfs_dinode *, 533 struct xfs_icdinode *); 534 void xfs_idestroy_fork(struct xfs_inode *, int); 535 void xfs_idata_realloc(struct xfs_inode *, int, int); 536 void xfs_iroot_realloc(struct xfs_inode *, int, int); 537 int xfs_iread_extents(struct xfs_trans *, struct xfs_inode *, int); 538 int xfs_iextents_copy(struct xfs_inode *, xfs_bmbt_rec_t *, int); 539 540 xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t); 541 void xfs_iext_insert(xfs_inode_t *, xfs_extnum_t, xfs_extnum_t, 542 xfs_bmbt_irec_t *, int); 543 void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int); 544 void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int); 545 void xfs_iext_remove(xfs_inode_t *, xfs_extnum_t, int, int); 546 void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int); 547 void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int); 548 void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int); 549 void xfs_iext_realloc_direct(xfs_ifork_t *, int); 550 void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t); 551 void xfs_iext_inline_to_direct(xfs_ifork_t *, int); 552 void xfs_iext_destroy(xfs_ifork_t *); 553 xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *); 554 xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *); 555 xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int); 556 void xfs_iext_irec_init(xfs_ifork_t *); 557 xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int); 558 void xfs_iext_irec_remove(xfs_ifork_t *, int); 559 void xfs_iext_irec_compact(xfs_ifork_t *); 560 void xfs_iext_irec_compact_pages(xfs_ifork_t *); 561 void xfs_iext_irec_compact_full(xfs_ifork_t *); 562 void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int); 563 564 #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount)) 565 566 #ifdef DEBUG 567 void xfs_isize_check(struct xfs_mount *, struct xfs_inode *, 568 xfs_fsize_t); 569 #else /* DEBUG */ 570 #define xfs_isize_check(mp, ip, isize) 571 #endif /* DEBUG */ 572 573 #if defined(DEBUG) 574 void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); 575 #else 576 #define xfs_inobp_check(mp, bp) 577 #endif /* DEBUG */ 578 579 extern struct kmem_zone *xfs_ifork_zone; 580 extern struct kmem_zone *xfs_inode_zone; 581 extern struct kmem_zone *xfs_ili_zone; 582 583 #endif /* __XFS_INODE_H__ */ 584