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/* 22 * Fork identifiers. 23 */ 24#define XFS_DATA_FORK 0 25#define XFS_ATTR_FORK 1 26 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 */ 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/* 53 * File incore extent information, present for each of data & attr forks. 54 */ 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 59typedef 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 */ 69 xfs_ext_irec_t *if_ext_irec; /* irec map file exts */ 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 */ 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 */ 96 97/* 98 * Flags for xfs_itobp(), xfs_imap() and xfs_dilocate(). 99 */ 100#define XFS_IMAP_LOOKUP 0x1 101#define XFS_IMAP_BULKSTAT 0x2 102 103#ifdef __KERNEL__ 104struct bhv_desc; 105struct bhv_vnode; 106struct cred; 107struct ktrace; 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 126typedef 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; 192 struct xfs_chashlist *chl_prev; 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 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 spinlock_t i_flags_lock; /* inode i_flags lock */ 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 xfs_fsize_t i_size; /* in-memory size */ 291 /* Trace buffers per inode. */ 292#ifdef XFS_BMAP_TRACE 293 struct ktrace *i_xtrace; /* inode extent list trace */ 294#endif 295#ifdef XFS_BMBT_TRACE 296 struct ktrace *i_btrace; /* inode bmap btree trace */ 297#endif 298#ifdef XFS_RW_TRACE 299 struct ktrace *i_rwtrace; /* inode read/write trace */ 300#endif 301#ifdef XFS_ILOCK_TRACE 302 struct ktrace *i_lock_trace; /* inode lock/unlock trace */ 303#endif 304#ifdef XFS_DIR2_TRACE 305 struct ktrace *i_dir_trace; /* inode directory trace */ 306#endif 307} xfs_inode_t; 308 309#define XFS_ISIZE(ip) (((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \ 310 (ip)->i_size : (ip)->i_d.di_size; 311 312/* 313 * i_flags helper functions 314 */ 315static inline void 316__xfs_iflags_set(xfs_inode_t *ip, unsigned short flags) 317{ 318 ip->i_flags |= flags; 319} 320 321static inline void 322xfs_iflags_set(xfs_inode_t *ip, unsigned short flags) 323{ 324 spin_lock(&ip->i_flags_lock); 325 __xfs_iflags_set(ip, flags); 326 spin_unlock(&ip->i_flags_lock); 327} 328 329static inline void 330xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags) 331{ 332 spin_lock(&ip->i_flags_lock); 333 ip->i_flags &= ~flags; 334 spin_unlock(&ip->i_flags_lock); 335} 336 337static inline int 338__xfs_iflags_test(xfs_inode_t *ip, unsigned short flags) 339{ 340 return (ip->i_flags & flags); 341} 342 343static inline int 344xfs_iflags_test(xfs_inode_t *ip, unsigned short flags) 345{ 346 int ret; 347 spin_lock(&ip->i_flags_lock); 348 ret = __xfs_iflags_test(ip, flags); 349 spin_unlock(&ip->i_flags_lock); 350 return ret; 351} 352#endif /* __KERNEL__ */ 353 354 355/* 356 * Fork handling. 357 */ 358#define XFS_IFORK_PTR(ip,w) \ 359 ((w) == XFS_DATA_FORK ? &(ip)->i_df : (ip)->i_afp) 360#define XFS_IFORK_Q(ip) XFS_CFORK_Q(&(ip)->i_d) 361#define XFS_IFORK_DSIZE(ip) XFS_CFORK_DSIZE(&ip->i_d, ip->i_mount) 362#define XFS_IFORK_ASIZE(ip) XFS_CFORK_ASIZE(&ip->i_d, ip->i_mount) 363#define XFS_IFORK_SIZE(ip,w) XFS_CFORK_SIZE(&ip->i_d, ip->i_mount, w) 364#define XFS_IFORK_FORMAT(ip,w) XFS_CFORK_FORMAT(&ip->i_d, w) 365#define XFS_IFORK_FMT_SET(ip,w,n) XFS_CFORK_FMT_SET(&ip->i_d, w, n) 366#define XFS_IFORK_NEXTENTS(ip,w) XFS_CFORK_NEXTENTS(&ip->i_d, w) 367#define XFS_IFORK_NEXT_SET(ip,w,n) XFS_CFORK_NEXT_SET(&ip->i_d, w, n) 368 369 370#ifdef __KERNEL__ 371 372/* 373 * In-core inode flags. 374 */ 375#define XFS_IGRIO 0x0001 /* inode used for guaranteed rate i/o */ 376#define XFS_IUIOSZ 0x0002 /* inode i/o sizes have been explicitly set */ 377#define XFS_IQUIESCE 0x0004 /* we have started quiescing for this inode */ 378#define XFS_IRECLAIM 0x0008 /* we have started reclaiming this inode */ 379#define XFS_ISTALE 0x0010 /* inode has been staled */ 380#define XFS_IRECLAIMABLE 0x0020 /* inode can be reclaimed */ 381#define XFS_INEW 0x0040 382 383/* 384 * Flags for inode locking. 385 * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield) 386 * 1<<16 - 1<<32-1 -- lockdep annotation (integers) 387 */ 388#define XFS_IOLOCK_EXCL (1<<0) 389#define XFS_IOLOCK_SHARED (1<<1) 390#define XFS_ILOCK_EXCL (1<<2) 391#define XFS_ILOCK_SHARED (1<<3) 392#define XFS_IUNLOCK_NONOTIFY (1<<4) 393/* #define XFS_IOLOCK_NESTED (1<<5) */ 394#define XFS_EXTENT_TOKEN_RD (1<<6) 395#define XFS_SIZE_TOKEN_RD (1<<7) 396#define XFS_EXTSIZE_RD (XFS_EXTENT_TOKEN_RD|XFS_SIZE_TOKEN_RD) 397#define XFS_WILLLEND (1<<8) /* Always acquire tokens for lending */ 398#define XFS_EXTENT_TOKEN_WR (XFS_EXTENT_TOKEN_RD | XFS_WILLLEND) 399#define XFS_SIZE_TOKEN_WR (XFS_SIZE_TOKEN_RD | XFS_WILLLEND) 400#define XFS_EXTSIZE_WR (XFS_EXTSIZE_RD | XFS_WILLLEND) 401/* TODO:XFS_SIZE_TOKEN_WANT (1<<9) */ 402 403#define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \ 404 | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \ 405 | XFS_EXTENT_TOKEN_RD | XFS_SIZE_TOKEN_RD \ 406 | XFS_WILLLEND) 407 408/* 409 * Flags for lockdep annotations. 410 * 411 * XFS_I[O]LOCK_PARENT - for operations that require locking two inodes 412 * (ie directory operations that require locking a directory inode and 413 * an entry inode). The first inode gets locked with this flag so it 414 * gets a lockdep subclass of 1 and the second lock will have a lockdep 415 * subclass of 0. 416 * 417 * XFS_I[O]LOCK_INUMORDER - for locking several inodes at the some time 418 * with xfs_lock_inodes(). This flag is used as the starting subclass 419 * and each subsequent lock acquired will increment the subclass by one. 420 * So the first lock acquired will have a lockdep subclass of 2, the 421 * second lock will have a lockdep subclass of 3, and so on. 422 */ 423#define XFS_IOLOCK_SHIFT 16 424#define XFS_IOLOCK_PARENT (1 << XFS_IOLOCK_SHIFT) 425#define XFS_IOLOCK_INUMORDER (2 << XFS_IOLOCK_SHIFT) 426 427#define XFS_ILOCK_SHIFT 24 428#define XFS_ILOCK_PARENT (1 << XFS_ILOCK_SHIFT) 429#define XFS_ILOCK_INUMORDER (2 << XFS_ILOCK_SHIFT) 430 431#define XFS_IOLOCK_DEP_MASK 0x00ff0000 432#define XFS_ILOCK_DEP_MASK 0xff000000 433#define XFS_LOCK_DEP_MASK (XFS_IOLOCK_DEP_MASK | XFS_ILOCK_DEP_MASK) 434 435#define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) >> XFS_IOLOCK_SHIFT) 436#define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) >> XFS_ILOCK_SHIFT) 437 438/* 439 * Flags for xfs_iflush() 440 */ 441#define XFS_IFLUSH_DELWRI_ELSE_SYNC 1 442#define XFS_IFLUSH_DELWRI_ELSE_ASYNC 2 443#define XFS_IFLUSH_SYNC 3 444#define XFS_IFLUSH_ASYNC 4 445#define XFS_IFLUSH_DELWRI 5 446 447/* 448 * Flags for xfs_itruncate_start(). 449 */ 450#define XFS_ITRUNC_DEFINITE 0x1 451#define XFS_ITRUNC_MAYBE 0x2 452 453#define XFS_ITOV(ip) BHV_TO_VNODE(XFS_ITOBHV(ip)) 454#define XFS_ITOV_NULL(ip) BHV_TO_VNODE_NULL(XFS_ITOBHV(ip)) 455#define XFS_ITOBHV(ip) ((struct bhv_desc *)(&((ip)->i_bhv_desc))) 456#define XFS_BHVTOI(bhvp) ((xfs_inode_t *)((char *)(bhvp) - \ 457 (char *)&(((xfs_inode_t *)0)->i_bhv_desc))) 458#define BHV_IS_XFS(bdp) (BHV_OPS(bdp) == &xfs_vnodeops) 459 460/* 461 * For multiple groups support: if S_ISGID bit is set in the parent 462 * directory, group of new file is set to that of the parent, and 463 * new subdirectory gets S_ISGID bit from parent. 464 */ 465#define XFS_INHERIT_GID(pip, vfsp) \ 466 (((vfsp)->vfs_flag & VFS_GRPID) || ((pip)->i_d.di_mode & S_ISGID)) 467 468/* 469 * Flags for xfs_iget() 470 */ 471#define XFS_IGET_CREATE 0x1 472#define XFS_IGET_BULKSTAT 0x2 473 474/* 475 * xfs_iget.c prototypes. 476 */ 477void xfs_ihash_init(struct xfs_mount *); 478void xfs_ihash_free(struct xfs_mount *); 479void xfs_chash_init(struct xfs_mount *); 480void xfs_chash_free(struct xfs_mount *); 481xfs_inode_t *xfs_inode_incore(struct xfs_mount *, xfs_ino_t, 482 struct xfs_trans *); 483void xfs_inode_lock_init(xfs_inode_t *, struct bhv_vnode *); 484int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, 485 uint, uint, xfs_inode_t **, xfs_daddr_t); 486void xfs_iput(xfs_inode_t *, uint); 487void xfs_iput_new(xfs_inode_t *, uint); 488void xfs_ilock(xfs_inode_t *, uint); 489int xfs_ilock_nowait(xfs_inode_t *, uint); 490void xfs_iunlock(xfs_inode_t *, uint); 491void xfs_ilock_demote(xfs_inode_t *, uint); 492void xfs_iflock(xfs_inode_t *); 493int xfs_iflock_nowait(xfs_inode_t *); 494uint xfs_ilock_map_shared(xfs_inode_t *); 495void xfs_iunlock_map_shared(xfs_inode_t *, uint); 496void xfs_ifunlock(xfs_inode_t *); 497void xfs_ireclaim(xfs_inode_t *); 498int xfs_finish_reclaim(xfs_inode_t *, int, int); 499int xfs_finish_reclaim_all(struct xfs_mount *, int); 500 501/* 502 * xfs_inode.c prototypes. 503 */ 504int xfs_itobp(struct xfs_mount *, struct xfs_trans *, 505 xfs_inode_t *, xfs_dinode_t **, struct xfs_buf **, 506 xfs_daddr_t, uint); 507int xfs_iread(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, 508 xfs_inode_t **, xfs_daddr_t, uint); 509int xfs_iread_extents(struct xfs_trans *, xfs_inode_t *, int); 510int xfs_ialloc(struct xfs_trans *, xfs_inode_t *, mode_t, 511 xfs_nlink_t, xfs_dev_t, struct cred *, xfs_prid_t, 512 int, struct xfs_buf **, boolean_t *, xfs_inode_t **); 513void xfs_xlate_dinode_core(xfs_caddr_t, struct xfs_dinode_core *, 514 int); 515uint xfs_ip2xflags(struct xfs_inode *); 516uint xfs_dic2xflags(struct xfs_dinode_core *); 517int xfs_ifree(struct xfs_trans *, xfs_inode_t *, 518 struct xfs_bmap_free *); 519int xfs_itruncate_start(xfs_inode_t *, uint, xfs_fsize_t); 520int xfs_itruncate_finish(struct xfs_trans **, xfs_inode_t *, 521 xfs_fsize_t, int, int); 522int xfs_iunlink(struct xfs_trans *, xfs_inode_t *); 523int xfs_igrow_start(xfs_inode_t *, xfs_fsize_t, struct cred *); 524void xfs_igrow_finish(struct xfs_trans *, xfs_inode_t *, 525 xfs_fsize_t, int); 526 527void xfs_idestroy_fork(xfs_inode_t *, int); 528void xfs_idestroy(xfs_inode_t *); 529void xfs_idata_realloc(xfs_inode_t *, int, int); 530void xfs_iextract(xfs_inode_t *); 531void xfs_iext_realloc(xfs_inode_t *, int, int); 532void xfs_iroot_realloc(xfs_inode_t *, int, int); 533void xfs_ipin(xfs_inode_t *); 534void xfs_iunpin(xfs_inode_t *); 535int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int); 536int xfs_iflush(xfs_inode_t *, uint); 537void xfs_iflush_all(struct xfs_mount *); 538int xfs_iaccess(xfs_inode_t *, mode_t, cred_t *); 539uint xfs_iroundup(uint); 540void xfs_ichgtime(xfs_inode_t *, int); 541xfs_fsize_t xfs_file_last_byte(xfs_inode_t *); 542void xfs_lock_inodes(xfs_inode_t **, int, int, uint); 543 544xfs_inode_t *xfs_vtoi(struct bhv_vnode *vp); 545 546void xfs_synchronize_atime(xfs_inode_t *); 547 548xfs_bmbt_rec_t *xfs_iext_get_ext(xfs_ifork_t *, xfs_extnum_t); 549void xfs_iext_insert(xfs_ifork_t *, xfs_extnum_t, xfs_extnum_t, 550 xfs_bmbt_irec_t *); 551void xfs_iext_add(xfs_ifork_t *, xfs_extnum_t, int); 552void xfs_iext_add_indirect_multi(xfs_ifork_t *, int, xfs_extnum_t, int); 553void xfs_iext_remove(xfs_ifork_t *, xfs_extnum_t, int); 554void xfs_iext_remove_inline(xfs_ifork_t *, xfs_extnum_t, int); 555void xfs_iext_remove_direct(xfs_ifork_t *, xfs_extnum_t, int); 556void xfs_iext_remove_indirect(xfs_ifork_t *, xfs_extnum_t, int); 557void xfs_iext_realloc_direct(xfs_ifork_t *, int); 558void xfs_iext_realloc_indirect(xfs_ifork_t *, int); 559void xfs_iext_indirect_to_direct(xfs_ifork_t *); 560void xfs_iext_direct_to_inline(xfs_ifork_t *, xfs_extnum_t); 561void xfs_iext_inline_to_direct(xfs_ifork_t *, int); 562void xfs_iext_destroy(xfs_ifork_t *); 563xfs_bmbt_rec_t *xfs_iext_bno_to_ext(xfs_ifork_t *, xfs_fileoff_t, int *); 564xfs_ext_irec_t *xfs_iext_bno_to_irec(xfs_ifork_t *, xfs_fileoff_t, int *); 565xfs_ext_irec_t *xfs_iext_idx_to_irec(xfs_ifork_t *, xfs_extnum_t *, int *, int); 566void xfs_iext_irec_init(xfs_ifork_t *); 567xfs_ext_irec_t *xfs_iext_irec_new(xfs_ifork_t *, int); 568void xfs_iext_irec_remove(xfs_ifork_t *, int); 569void xfs_iext_irec_compact(xfs_ifork_t *); 570void xfs_iext_irec_compact_pages(xfs_ifork_t *); 571void xfs_iext_irec_compact_full(xfs_ifork_t *); 572void xfs_iext_irec_update_extoffs(xfs_ifork_t *, int, int); 573 574#define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount)) 575 576#ifdef DEBUG 577void xfs_isize_check(struct xfs_mount *, xfs_inode_t *, xfs_fsize_t); 578#else /* DEBUG */ 579#define xfs_isize_check(mp, ip, isize) 580#endif /* DEBUG */ 581 582#if defined(DEBUG) 583void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); 584#else 585#define xfs_inobp_check(mp, bp) 586#endif /* DEBUG */ 587 588extern struct kmem_zone *xfs_chashlist_zone; 589extern struct kmem_zone *xfs_ifork_zone; 590extern struct kmem_zone *xfs_inode_zone; 591extern struct kmem_zone *xfs_ili_zone; 592 593#endif /* __KERNEL__ */ 594 595#endif /* __XFS_INODE_H__ */ 596