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 xfs_dinode; 22 struct xfs_dinode_core; 23 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 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 */ 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 * Flags for xfs_ichgtime(). 88 */ 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 */ 92 93 /* 94 * Per-fork incore inode flags. 95 */ 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 */ 100 101 /* 102 * Flags for xfs_itobp(), xfs_imap() and xfs_dilocate(). 103 */ 104 #define XFS_IMAP_LOOKUP 0x1 105 #define XFS_IMAP_BULKSTAT 0x2 106 107 #ifdef __KERNEL__ 108 struct bhv_desc; 109 struct cred; 110 struct ktrace; 111 struct xfs_buf; 112 struct xfs_bmap_free; 113 struct xfs_bmbt_irec; 114 struct xfs_bmbt_block; 115 struct xfs_inode; 116 struct xfs_inode_log_item; 117 struct xfs_mount; 118 struct xfs_trans; 119 struct xfs_dquot; 120 121 #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 *); 125 #else 126 #define xfs_ilock_trace(i,n,f,ra) 127 #endif 128 129 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 */ 133 } dm_attrs_t; 134 135 /* 136 * This is the xfs in-core inode structure. 137 * Most of the on-disk inode is embedded in the i_d field. 138 * 139 * The extent pointers/inline file space, however, are managed 140 * separately. The memory for this information is pointed to by 141 * the if_u1 unions depending on the type of the data. 142 * This is used to linearize the array of extents for fast in-core 143 * access. This is used until the file's number of extents 144 * surpasses XFS_MAX_INCORE_EXTENTS, at which point all extent pointers 145 * are accessed through the buffer cache. 146 * 147 * Other state kept in the in-core inode is used for identification, 148 * locking, transactional updating, etc of the inode. 149 * 150 * Generally, we do not want to hold the i_rlock while holding the 151 * i_ilock. Hierarchy is i_iolock followed by i_rlock. 152 * 153 * xfs_iptr_t contains all the inode fields upto and including the 154 * i_mnext and i_mprev fields, it is used as a marker in the inode 155 * chain off the mount structure by xfs_sync calls. 156 */ 157 158 typedef struct xfs_ictimestamp { 159 __int32_t t_sec; /* timestamp seconds */ 160 __int32_t t_nsec; /* timestamp nanoseconds */ 161 } xfs_ictimestamp_t; 162 163 /* 164 * NOTE: This structure must be kept identical to struct xfs_dinode_core 165 * in xfs_dinode.h except for the endianess annotations. 166 */ 167 typedef struct xfs_icdinode { 168 __uint16_t di_magic; /* inode magic # = XFS_DINODE_MAGIC */ 169 __uint16_t di_mode; /* mode and type of file */ 170 __int8_t di_version; /* inode version */ 171 __int8_t di_format; /* format of di_c data */ 172 __uint16_t di_onlink; /* old number of links to file */ 173 __uint32_t di_uid; /* owner's user id */ 174 __uint32_t di_gid; /* owner's group id */ 175 __uint32_t di_nlink; /* number of links to file */ 176 __uint16_t di_projid; /* owner's project id */ 177 __uint8_t di_pad[8]; /* unused, zeroed space */ 178 __uint16_t di_flushiter; /* incremented on flush */ 179 xfs_ictimestamp_t di_atime; /* time last accessed */ 180 xfs_ictimestamp_t di_mtime; /* time last modified */ 181 xfs_ictimestamp_t di_ctime; /* time created/inode modified */ 182 xfs_fsize_t di_size; /* number of bytes in file */ 183 xfs_drfsbno_t di_nblocks; /* # of direct & btree blocks used */ 184 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ 185 xfs_extnum_t di_nextents; /* number of extents in data fork */ 186 xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ 187 __uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ 188 __int8_t di_aformat; /* format of attr fork's data */ 189 __uint32_t di_dmevmask; /* DMIG event mask */ 190 __uint16_t di_dmstate; /* DMIG state info */ 191 __uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ 192 __uint32_t di_gen; /* generation number */ 193 } xfs_icdinode_t; 194 195 typedef struct { 196 struct xfs_inode *ip_mnext; /* next inode in mount list */ 197 struct xfs_inode *ip_mprev; /* ptr to prev inode */ 198 struct xfs_mount *ip_mount; /* fs mount struct ptr */ 199 } xfs_iptr_t; 200 201 typedef struct xfs_inode { 202 /* Inode linking and identification information. */ 203 struct xfs_inode *i_mnext; /* next inode in mount list */ 204 struct xfs_inode *i_mprev; /* ptr to prev inode */ 205 struct xfs_mount *i_mount; /* fs mount struct ptr */ 206 struct list_head i_reclaim; /* reclaim list */ 207 bhv_vnode_t *i_vnode; /* vnode backpointer */ 208 struct xfs_dquot *i_udquot; /* user dquot */ 209 struct xfs_dquot *i_gdquot; /* group dquot */ 210 211 /* Inode location stuff */ 212 xfs_ino_t i_ino; /* inode number (agno/agino)*/ 213 xfs_daddr_t i_blkno; /* blkno of inode buffer */ 214 ushort i_len; /* len of inode buffer */ 215 ushort i_boffset; /* off of inode in buffer */ 216 217 /* Extent information. */ 218 xfs_ifork_t *i_afp; /* attribute fork pointer */ 219 xfs_ifork_t i_df; /* data fork */ 220 221 /* Transaction and locking information. */ 222 struct xfs_trans *i_transp; /* ptr to owning transaction*/ 223 struct xfs_inode_log_item *i_itemp; /* logging information */ 224 mrlock_t i_lock; /* inode lock */ 225 mrlock_t i_iolock; /* inode IO lock */ 226 sema_t i_flock; /* inode flush lock */ 227 atomic_t i_pincount; /* inode pin count */ 228 wait_queue_head_t i_ipin_wait; /* inode pinning wait queue */ 229 spinlock_t i_flags_lock; /* inode i_flags lock */ 230 /* Miscellaneous state. */ 231 unsigned short i_flags; /* see defined flags below */ 232 unsigned char i_update_core; /* timestamps/size is dirty */ 233 unsigned char i_update_size; /* di_size field is dirty */ 234 unsigned int i_gen; /* generation count */ 235 unsigned int i_delayed_blks; /* count of delay alloc blks */ 236 237 xfs_icdinode_t i_d; /* most of ondisk inode */ 238 239 xfs_fsize_t i_size; /* in-memory size */ 240 xfs_fsize_t i_new_size; /* size when write completes */ 241 atomic_t i_iocount; /* outstanding I/O count */ 242 /* Trace buffers per inode. */ 243 #ifdef XFS_INODE_TRACE 244 struct ktrace *i_trace; /* general inode trace */ 245 #endif 246 #ifdef XFS_BMAP_TRACE 247 struct ktrace *i_xtrace; /* inode extent list trace */ 248 #endif 249 #ifdef XFS_BMBT_TRACE 250 struct ktrace *i_btrace; /* inode bmap btree trace */ 251 #endif 252 #ifdef XFS_RW_TRACE 253 struct ktrace *i_rwtrace; /* inode read/write trace */ 254 #endif 255 #ifdef XFS_ILOCK_TRACE 256 struct ktrace *i_lock_trace; /* inode lock/unlock trace */ 257 #endif 258 #ifdef XFS_DIR2_TRACE 259 struct ktrace *i_dir_trace; /* inode directory trace */ 260 #endif 261 } xfs_inode_t; 262 263 #define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \ 264 (ip)->i_size : (ip)->i_d.di_size; 265 266 /* 267 * i_flags helper functions 268 */ 269 static inline void 270 __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags) 271 { 272 ip->i_flags |= flags; 273 } 274 275 static inline void 276 xfs_iflags_set(xfs_inode_t *ip, unsigned short flags) 277 { 278 spin_lock(&ip->i_flags_lock); 279 __xfs_iflags_set(ip, flags); 280 spin_unlock(&ip->i_flags_lock); 281 } 282 283 static inline void 284 xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags) 285 { 286 spin_lock(&ip->i_flags_lock); 287 ip->i_flags &= ~flags; 288 spin_unlock(&ip->i_flags_lock); 289 } 290 291 static inline int 292 __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags) 293 { 294 return (ip->i_flags & flags); 295 } 296 297 static inline int 298 xfs_iflags_test(xfs_inode_t *ip, unsigned short flags) 299 { 300 int ret; 301 spin_lock(&ip->i_flags_lock); 302 ret = __xfs_iflags_test(ip, flags); 303 spin_unlock(&ip->i_flags_lock); 304 return ret; 305 } 306 307 static inline int 308 xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags) 309 { 310 int ret; 311 312 spin_lock(&ip->i_flags_lock); 313 ret = ip->i_flags & flags; 314 if (ret) 315 ip->i_flags &= ~flags; 316 spin_unlock(&ip->i_flags_lock); 317 return ret; 318 } 319 #endif /* __KERNEL__ */ 320 321 322 /* 323 * Fork handling. 324 */ 325 326 #define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0) 327 #define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3)) 328 329 #define XFS_IFORK_PTR(ip,w) \ 330 ((w) == XFS_DATA_FORK ? \ 331 &(ip)->i_df : \ 332 (ip)->i_afp) 333 #define XFS_IFORK_DSIZE(ip) \ 334 (XFS_IFORK_Q(ip) ? \ 335 XFS_IFORK_BOFF(ip) : \ 336 XFS_LITINO((ip)->i_mount)) 337 #define XFS_IFORK_ASIZE(ip) \ 338 (XFS_IFORK_Q(ip) ? \ 339 XFS_LITINO((ip)->i_mount) - XFS_IFORK_BOFF(ip) : \ 340 0) 341 #define XFS_IFORK_SIZE(ip,w) \ 342 ((w) == XFS_DATA_FORK ? \ 343 XFS_IFORK_DSIZE(ip) : \ 344 XFS_IFORK_ASIZE(ip)) 345 #define XFS_IFORK_FORMAT(ip,w) \ 346 ((w) == XFS_DATA_FORK ? \ 347 (ip)->i_d.di_format : \ 348 (ip)->i_d.di_aformat) 349 #define XFS_IFORK_FMT_SET(ip,w,n) \ 350 ((w) == XFS_DATA_FORK ? \ 351 ((ip)->i_d.di_format = (n)) : \ 352 ((ip)->i_d.di_aformat = (n))) 353 #define XFS_IFORK_NEXTENTS(ip,w) \ 354 ((w) == XFS_DATA_FORK ? \ 355 (ip)->i_d.di_nextents : \ 356 (ip)->i_d.di_anextents) 357 #define XFS_IFORK_NEXT_SET(ip,w,n) \ 358 ((w) == XFS_DATA_FORK ? \ 359 ((ip)->i_d.di_nextents = (n)) : \ 360 ((ip)->i_d.di_anextents = (n))) 361 362 #ifdef __KERNEL__ 363 364 /* 365 * In-core inode flags. 366 */ 367 #define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */ 368 #define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */ 369 #define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */ 370 #define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */ 371 #define XFS_ISTALE 0x0010 /* inode has been staled */ 372 #define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */ 373 #define XFS_INEW 0x0040 374 #define XFS_IFILESTREAM 0x0080 /* inode is in a filestream directory */ 375 #define XFS_IMODIFIED 0x0100 /* XFS inode state possibly differs */ 376 /* to the Linux inode state. */ 377 #define XFS_ITRUNCATED 0x0200 /* truncated down so flush-on-close */ 378 379 /* 380 * Flags for inode locking. 381 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield) 382 * 1<<16 - 1<<32-1 -- lockdep annotation (integers) 383 */ 384 #define XFS_IOLOCK_EXCL (1<<0) 385 #define XFS_IOLOCK_SHARED (1<<1) 386 #define XFS_ILOCK_EXCL (1<<2) 387 #define XFS_ILOCK_SHARED (1<<3) 388 #define XFS_IUNLOCK_NONOTIFY (1<<4) 389 390 #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \ 391 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED) 392 393 /* 394 * Flags for lockdep annotations. 395 * 396 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes 397 * (ie directory operations that require locking a directory inode and 398 * an entry inode). The first inode gets locked with this flag so it 399 * gets a lockdep subclass of 1 and the second lock will have a lockdep 400 * subclass of 0. 401 * 402 * XFS_LOCK_INUMORDER - for locking several inodes at the some time 403 * with xfs_lock_inodes(). This flag is used as the starting subclass 404 * and each subsequent lock acquired will increment the subclass by one. 405 * So the first lock acquired will have a lockdep subclass of 2, the 406 * second lock will have a lockdep subclass of 3, and so on. It is 407 * the responsibility of the class builder to shift this to the correct 408 * portion of the lock_mode lockdep mask. 409 */ 410 #define XFS_LOCK_PARENT 1 411 #define XFS_LOCK_INUMORDER 2 412 413 #define XFS_IOLOCK_SHIFT 16 414 #define XFS_IOLOCK_PARENT (XFS_LOCK_PARENT << XFS_IOLOCK_SHIFT) 415 416 #define XFS_ILOCK_SHIFT 24 417 #define XFS_ILOCK_PARENT (XFS_LOCK_PARENT << XFS_ILOCK_SHIFT) 418 419 #define XFS_IOLOCK_DEP_MASK 0x00ff0000 420 #define XFS_ILOCK_DEP_MASK 0xff000000 421 #define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK) 422 423 #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT) 424 #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT) 425 426 /* 427 * Flags for xfs_iflush() 428 */ 429 #define XFS_IFLUSH_DELWRI_ELSE_SYNC 1 430 #define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2 431 #define XFS_IFLUSH_SYNC 3 432 #define XFS_IFLUSH_ASYNC 4 433 #define XFS_IFLUSH_DELWRI 5 434 #define XFS_IFLUSH_ASYNC_NOBLOCK 6 435 436 /* 437 * Flags for xfs_itruncate_start(). 438 */ 439 #define XFS_ITRUNC_DEFINITE 0x1 440 #define XFS_ITRUNC_MAYBE 0x2 441 442 #define XFS_ITOV(ip) ((ip)->i_vnode) 443 #define XFS_ITOV_NULL(ip) ((ip)->i_vnode) 444 445 /* 446 * For multiple groups support: if S_ISGID bit is set in the parent 447 * directory, group of new file is set to that of the parent, and 448 * new subdirectory gets S_ISGID bit from parent. 449 */ 450 #define XFS_INHERIT_GID(pip) \ 451 (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \ 452 ((pip)->i_d.di_mode & S_ISGID)) 453 454 /* 455 * Flags for xfs_iget() 456 */ 457 #define XFS_IGET_CREATE 0x1 458 #define XFS_IGET_BULKSTAT 0x2 459 460 /* 461 * xfs_iget.c prototypes. 462 */ 463 void xfs_ihash_init(struct xfs_mount *); 464 void xfs_ihash_free(struct xfs_mount *); 465 xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t, 466 struct xfs_trans *); 467 int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, 468 uint, uint, xfs_inode_t **, xfs_daddr_t); 469 void xfs_iput(xfs_inode_t *, uint); 470 void xfs_iput_new(xfs_inode_t *, uint); 471 void xfs_ilock(xfs_inode_t *, uint); 472 int xfs_ilock_nowait(xfs_inode_t *, uint); 473 void xfs_iunlock(xfs_inode_t *, uint); 474 void xfs_ilock_demote(xfs_inode_t *, uint); 475 int xfs_isilocked(xfs_inode_t *, uint); 476 void xfs_iflock(xfs_inode_t *); 477 int xfs_iflock_nowait(xfs_inode_t *); 478 uint xfs_ilock_map_shared(xfs_inode_t *); 479 void xfs_iunlock_map_shared(xfs_inode_t *, uint); 480 void xfs_ifunlock(xfs_inode_t *); 481 void xfs_ireclaim(xfs_inode_t *); 482 int xfs_finish_reclaim(xfs_inode_t *, int, int); 483 int xfs_finish_reclaim_all(struct xfs_mount *, int); 484 485 /* 486 * xfs_inode.c prototypes. 487 */ 488 int xfs_itobp(struct xfs_mount *, struct xfs_trans *, 489 xfs_inode_t *, struct xfs_dinode **, struct xfs_buf **, 490 xfs_daddr_t, uint, uint); 491 int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, 492 xfs_inode_t **, xfs_daddr_t, uint); 493 int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int); 494 int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t, 495 xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t, 496 int, struct xfs_buf **, boolean_t *, xfs_inode_t **); 497 void xfs_dinode_from_disk(struct xfs_icdinode *, 498 struct xfs_dinode_core *); 499 void xfs_dinode_to_disk(struct xfs_dinode_core *, 500 struct xfs_icdinode *); 501 502 uint xfs_ip2xflags(struct xfs_inode *); 503 uint xfs_dic2xflags(struct xfs_dinode *); 504 int xfs_ifree(struct xfs_trans *, xfs_inode_t *, 505 struct xfs_bmap_free *); 506 int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t); 507 int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *, 508 xfs_fsize_t, int, int); 509 int xfs_iunlink(struct xfs_trans *, xfs_inode_t *); 510 int xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *); 511 void xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *, 512 xfs_fsize_t, int); 513 514 void xfs_idestroy_fork(xfs_inode_t *, int); 515 void xfs_idestroy(xfs_inode_t *); 516 void xfs_idata_realloc(xfs_inode_t *, int, int); 517 void xfs_iextract(xfs_inode_t *); 518 void xfs_iext_realloc(xfs_inode_t *, int, int); 519 void xfs_iroot_realloc(xfs_inode_t *, int, int); 520 void xfs_ipin(xfs_inode_t *); 521 void xfs_iunpin(xfs_inode_t *); 522 int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int); 523 int xfs_iflush(xfs_inode_t *, uint); 524 void xfs_iflush_all(struct xfs_mount *); 525 void xfs_ichgtime(xfs_inode_t *, int); 526 xfs_fsize_t xfs_file_last_byte(xfs_inode_t *); 527 void xfs_lock_inodes(xfs_inode_t **, int, uint); 528 529 void xfs_synchronize_atime(xfs_inode_t *); 530 void xfs_mark_inode_dirty_sync(xfs_inode_t *); 531 532 xfs_bmbt_rec_host_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t); 533 void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t, 534 xfs_bmbt_irec_t *); 535 void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int); 536 void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int); 537 void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int); 538 void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int); 539 void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int); 540 void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int); 541 void xfs_iext_realloc_direct(xfs_ifork_t *, int); 542 void xfs_iext_realloc_indirect(xfs_ifork_t *, int); 543 void xfs_iext_indirect_to_direct(xfs_ifork_t *); 544 void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t); 545 void xfs_iext_inline_to_direct(xfs_ifork_t *, int); 546 void xfs_iext_destroy(xfs_ifork_t *); 547 xfs_bmbt_rec_host_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *); 548 xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *); 549 xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int); 550 void xfs_iext_irec_init(xfs_ifork_t *); 551 xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int); 552 void xfs_iext_irec_remove(xfs_ifork_t *, int); 553 void xfs_iext_irec_compact(xfs_ifork_t *); 554 void xfs_iext_irec_compact_pages(xfs_ifork_t *); 555 void xfs_iext_irec_compact_full(xfs_ifork_t *); 556 void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int); 557 558 #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount)) 559 560 #ifdef DEBUG 561 void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t); 562 #else /* DEBUG */ 563 #define xfs_isize_check(mp, ip, isize) 564 #endif /* DEBUG */ 565 566 #if defined(DEBUG) 567 void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); 568 #else 569 #define xfs_inobp_check(mp, bp) 570 #endif /* DEBUG */ 571 572 extern struct kmem_zone *xfs_ifork_zone; 573 extern struct kmem_zone *xfs_inode_zone; 574 extern struct kmem_zone *xfs_ili_zone; 575 576 #endif /* __KERNEL__ */ 577 578 #endif /* __XFS_INODE_H__ */ 579