1 /* SPDX-License-Identifier: LGPL-2.1 */ 2 /* 3 * Copyright (c) 1995-2005 Silicon Graphics, Inc. 4 * All Rights Reserved. 5 */ 6 #ifndef __XFS_FS_H__ 7 #define __XFS_FS_H__ 8 9 /* 10 * SGI's XFS filesystem's major stuff (constants, structures) 11 */ 12 13 /* 14 * Direct I/O attribute record used with XFS_IOC_DIOINFO 15 * d_miniosz is the min xfer size, xfer size multiple and file seek offset 16 * alignment. 17 */ 18 #ifndef HAVE_DIOATTR 19 struct dioattr { 20 __u32 d_mem; /* data buffer memory alignment */ 21 __u32 d_miniosz; /* min xfer size */ 22 __u32 d_maxiosz; /* max xfer size */ 23 }; 24 #endif 25 26 /* 27 * Structure for XFS_IOC_GETBMAP. 28 * On input, fill in bmv_offset and bmv_length of the first structure 29 * to indicate the area of interest in the file, and bmv_entries with 30 * the number of array elements given back. The first structure is 31 * updated on return to give the offset and length for the next call. 32 */ 33 #ifndef HAVE_GETBMAP 34 struct getbmap { 35 __s64 bmv_offset; /* file offset of segment in blocks */ 36 __s64 bmv_block; /* starting block (64-bit daddr_t) */ 37 __s64 bmv_length; /* length of segment, blocks */ 38 __s32 bmv_count; /* # of entries in array incl. 1st */ 39 __s32 bmv_entries; /* # of entries filled in (output) */ 40 }; 41 #endif 42 43 /* 44 * Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries 45 * are used exactly as in the getbmap structure. The getbmapx structure 46 * has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field 47 * is only used for the first structure. It contains input flags 48 * specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled 49 * in by the XFS_IOC_GETBMAPX command for each returned structure after 50 * the first. 51 */ 52 #ifndef HAVE_GETBMAPX 53 struct getbmapx { 54 __s64 bmv_offset; /* file offset of segment in blocks */ 55 __s64 bmv_block; /* starting block (64-bit daddr_t) */ 56 __s64 bmv_length; /* length of segment, blocks */ 57 __s32 bmv_count; /* # of entries in array incl. 1st */ 58 __s32 bmv_entries; /* # of entries filled in (output). */ 59 __s32 bmv_iflags; /* input flags (1st structure) */ 60 __s32 bmv_oflags; /* output flags (after 1st structure)*/ 61 __s32 bmv_unused1; /* future use */ 62 __s32 bmv_unused2; /* future use */ 63 }; 64 #endif 65 66 /* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */ 67 #define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */ 68 #define BMV_IF_NO_DMAPI_READ 0x2 /* Deprecated */ 69 #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */ 70 #define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */ 71 #define BMV_IF_NO_HOLES 0x10 /* Do not return holes */ 72 #define BMV_IF_COWFORK 0x20 /* return CoW fork rather than data */ 73 #define BMV_IF_VALID \ 74 (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \ 75 BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK) 76 77 /* bmv_oflags values - returned for each non-header segment */ 78 #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */ 79 #define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */ 80 #define BMV_OF_LAST 0x4 /* segment is the last in the file */ 81 #define BMV_OF_SHARED 0x8 /* segment shared with another file */ 82 83 /* fmr_owner special values for FS_IOC_GETFSMAP */ 84 #define XFS_FMR_OWN_FREE FMR_OWN_FREE /* free space */ 85 #define XFS_FMR_OWN_UNKNOWN FMR_OWN_UNKNOWN /* unknown owner */ 86 #define XFS_FMR_OWN_FS FMR_OWNER('X', 1) /* static fs metadata */ 87 #define XFS_FMR_OWN_LOG FMR_OWNER('X', 2) /* journalling log */ 88 #define XFS_FMR_OWN_AG FMR_OWNER('X', 3) /* per-AG metadata */ 89 #define XFS_FMR_OWN_INOBT FMR_OWNER('X', 4) /* inode btree blocks */ 90 #define XFS_FMR_OWN_INODES FMR_OWNER('X', 5) /* inodes */ 91 #define XFS_FMR_OWN_REFC FMR_OWNER('X', 6) /* refcount tree */ 92 #define XFS_FMR_OWN_COW FMR_OWNER('X', 7) /* cow staging */ 93 #define XFS_FMR_OWN_DEFECTIVE FMR_OWNER('X', 8) /* bad blocks */ 94 95 /* 96 * File segment locking set data type for 64 bit access. 97 * Also used for all the RESV/FREE interfaces. 98 */ 99 typedef struct xfs_flock64 { 100 __s16 l_type; 101 __s16 l_whence; 102 __s64 l_start; 103 __s64 l_len; /* len == 0 means until end of file */ 104 __s32 l_sysid; 105 __u32 l_pid; 106 __s32 l_pad[4]; /* reserve area */ 107 } xfs_flock64_t; 108 109 /* 110 * Output for XFS_IOC_FSGEOMETRY_V1 111 */ 112 struct xfs_fsop_geom_v1 { 113 __u32 blocksize; /* filesystem (data) block size */ 114 __u32 rtextsize; /* realtime extent size */ 115 __u32 agblocks; /* fsblocks in an AG */ 116 __u32 agcount; /* number of allocation groups */ 117 __u32 logblocks; /* fsblocks in the log */ 118 __u32 sectsize; /* (data) sector size, bytes */ 119 __u32 inodesize; /* inode size in bytes */ 120 __u32 imaxpct; /* max allowed inode space(%) */ 121 __u64 datablocks; /* fsblocks in data subvolume */ 122 __u64 rtblocks; /* fsblocks in realtime subvol */ 123 __u64 rtextents; /* rt extents in realtime subvol*/ 124 __u64 logstart; /* starting fsblock of the log */ 125 unsigned char uuid[16]; /* unique id of the filesystem */ 126 __u32 sunit; /* stripe unit, fsblocks */ 127 __u32 swidth; /* stripe width, fsblocks */ 128 __s32 version; /* structure version */ 129 __u32 flags; /* superblock version flags */ 130 __u32 logsectsize; /* log sector size, bytes */ 131 __u32 rtsectsize; /* realtime sector size, bytes */ 132 __u32 dirblocksize; /* directory block size, bytes */ 133 }; 134 135 /* 136 * Output for XFS_IOC_FSGEOMETRY_V4 137 */ 138 struct xfs_fsop_geom_v4 { 139 __u32 blocksize; /* filesystem (data) block size */ 140 __u32 rtextsize; /* realtime extent size */ 141 __u32 agblocks; /* fsblocks in an AG */ 142 __u32 agcount; /* number of allocation groups */ 143 __u32 logblocks; /* fsblocks in the log */ 144 __u32 sectsize; /* (data) sector size, bytes */ 145 __u32 inodesize; /* inode size in bytes */ 146 __u32 imaxpct; /* max allowed inode space(%) */ 147 __u64 datablocks; /* fsblocks in data subvolume */ 148 __u64 rtblocks; /* fsblocks in realtime subvol */ 149 __u64 rtextents; /* rt extents in realtime subvol*/ 150 __u64 logstart; /* starting fsblock of the log */ 151 unsigned char uuid[16]; /* unique id of the filesystem */ 152 __u32 sunit; /* stripe unit, fsblocks */ 153 __u32 swidth; /* stripe width, fsblocks */ 154 __s32 version; /* structure version */ 155 __u32 flags; /* superblock version flags */ 156 __u32 logsectsize; /* log sector size, bytes */ 157 __u32 rtsectsize; /* realtime sector size, bytes */ 158 __u32 dirblocksize; /* directory block size, bytes */ 159 __u32 logsunit; /* log stripe unit, bytes */ 160 }; 161 162 /* 163 * Output for XFS_IOC_FSGEOMETRY 164 */ 165 struct xfs_fsop_geom { 166 __u32 blocksize; /* filesystem (data) block size */ 167 __u32 rtextsize; /* realtime extent size */ 168 __u32 agblocks; /* fsblocks in an AG */ 169 __u32 agcount; /* number of allocation groups */ 170 __u32 logblocks; /* fsblocks in the log */ 171 __u32 sectsize; /* (data) sector size, bytes */ 172 __u32 inodesize; /* inode size in bytes */ 173 __u32 imaxpct; /* max allowed inode space(%) */ 174 __u64 datablocks; /* fsblocks in data subvolume */ 175 __u64 rtblocks; /* fsblocks in realtime subvol */ 176 __u64 rtextents; /* rt extents in realtime subvol*/ 177 __u64 logstart; /* starting fsblock of the log */ 178 unsigned char uuid[16]; /* unique id of the filesystem */ 179 __u32 sunit; /* stripe unit, fsblocks */ 180 __u32 swidth; /* stripe width, fsblocks */ 181 __s32 version; /* structure version */ 182 __u32 flags; /* superblock version flags */ 183 __u32 logsectsize; /* log sector size, bytes */ 184 __u32 rtsectsize; /* realtime sector size, bytes */ 185 __u32 dirblocksize; /* directory block size, bytes */ 186 __u32 logsunit; /* log stripe unit, bytes */ 187 uint32_t sick; /* o: unhealthy fs & rt metadata */ 188 uint32_t checked; /* o: checked fs & rt metadata */ 189 __u64 reserved[17]; /* reserved space */ 190 }; 191 192 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */ 193 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */ 194 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */ 195 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */ 196 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */ 197 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */ 198 #define XFS_FSOP_GEOM_SICK_QUOTACHECK (1 << 6) /* quota counts */ 199 #define XFS_FSOP_GEOM_SICK_NLINKS (1 << 7) /* inode link counts */ 200 201 /* Output for XFS_FS_COUNTS */ 202 typedef struct xfs_fsop_counts { 203 __u64 freedata; /* free data section blocks */ 204 __u64 freertx; /* free rt extents */ 205 __u64 freeino; /* free inodes */ 206 __u64 allocino; /* total allocated inodes */ 207 } xfs_fsop_counts_t; 208 209 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */ 210 typedef struct xfs_fsop_resblks { 211 __u64 resblks; 212 __u64 resblks_avail; 213 } xfs_fsop_resblks_t; 214 215 #define XFS_FSOP_GEOM_VERSION 0 216 #define XFS_FSOP_GEOM_VERSION_V5 5 217 218 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */ 219 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */ 220 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */ 221 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */ 222 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */ 223 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */ 224 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */ 225 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */ 226 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */ 227 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */ 228 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */ 229 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */ 230 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */ 231 /* -- Do not use -- (1 << 13) SGI parent pointers */ 232 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */ 233 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */ 234 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */ 235 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */ 236 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */ 237 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */ 238 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */ 239 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */ 240 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */ 241 #define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */ 242 #define XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE (1 << 24) /* exchange range */ 243 244 /* 245 * Minimum and maximum sizes need for growth checks. 246 * 247 * Block counts are in units of filesystem blocks, not basic blocks. 248 */ 249 #define XFS_MIN_AG_BLOCKS 64 250 #define XFS_MIN_LOG_BLOCKS 512ULL 251 #define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL) 252 #define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL) 253 254 /* 255 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than 256 * 16MB or larger than 1TB. 257 */ 258 #define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */ 259 #define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */ 260 #define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE) 261 #define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE) 262 263 #define XFS_MAX_AGNUMBER ((xfs_agnumber_t)(NULLAGNUMBER - 1)) 264 265 /* keep the maximum size under 2^31 by a small amount */ 266 #define XFS_MAX_LOG_BYTES \ 267 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES) 268 269 /* Used for sanity checks on superblock */ 270 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks) 271 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \ 272 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS) 273 274 /* 275 * Output for XFS_IOC_AG_GEOMETRY 276 */ 277 struct xfs_ag_geometry { 278 uint32_t ag_number; /* i/o: AG number */ 279 uint32_t ag_length; /* o: length in blocks */ 280 uint32_t ag_freeblks; /* o: free space */ 281 uint32_t ag_icount; /* o: inodes allocated */ 282 uint32_t ag_ifree; /* o: inodes free */ 283 uint32_t ag_sick; /* o: sick things in ag */ 284 uint32_t ag_checked; /* o: checked metadata in ag */ 285 uint32_t ag_flags; /* i/o: flags for this ag */ 286 uint64_t ag_reserved[12];/* o: zero */ 287 }; 288 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */ 289 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */ 290 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */ 291 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */ 292 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */ 293 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */ 294 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */ 295 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */ 296 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */ 297 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */ 298 #define XFS_AG_GEOM_SICK_INODES (1 << 10) /* bad inodes were seen */ 299 300 /* 301 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT 302 */ 303 typedef struct xfs_growfs_data { 304 __u64 newblocks; /* new data subvol size, fsblocks */ 305 __u32 imaxpct; /* new inode space percentage limit */ 306 } xfs_growfs_data_t; 307 308 typedef struct xfs_growfs_log { 309 __u32 newblocks; /* new log size, fsblocks */ 310 __u32 isint; /* 1 if new log is internal */ 311 } xfs_growfs_log_t; 312 313 typedef struct xfs_growfs_rt { 314 __u64 newblocks; /* new realtime size, fsblocks */ 315 __u32 extsize; /* new realtime extent size, fsblocks */ 316 } xfs_growfs_rt_t; 317 318 319 /* 320 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE 321 */ 322 typedef struct xfs_bstime { 323 __kernel_long_t tv_sec; /* seconds */ 324 __s32 tv_nsec; /* and nanoseconds */ 325 } xfs_bstime_t; 326 327 struct xfs_bstat { 328 __u64 bs_ino; /* inode number */ 329 __u16 bs_mode; /* type and mode */ 330 __u16 bs_nlink; /* number of links */ 331 __u32 bs_uid; /* user id */ 332 __u32 bs_gid; /* group id */ 333 __u32 bs_rdev; /* device value */ 334 __s32 bs_blksize; /* block size */ 335 __s64 bs_size; /* file size */ 336 xfs_bstime_t bs_atime; /* access time */ 337 xfs_bstime_t bs_mtime; /* modify time */ 338 xfs_bstime_t bs_ctime; /* inode change time */ 339 int64_t bs_blocks; /* number of blocks */ 340 __u32 bs_xflags; /* extended flags */ 341 __s32 bs_extsize; /* extent size */ 342 __s32 bs_extents; /* number of extents */ 343 __u32 bs_gen; /* generation count */ 344 __u16 bs_projid_lo; /* lower part of project id */ 345 #define bs_projid bs_projid_lo /* (previously just bs_projid) */ 346 __u16 bs_forkoff; /* inode fork offset in bytes */ 347 __u16 bs_projid_hi; /* higher part of project id */ 348 uint16_t bs_sick; /* sick inode metadata */ 349 uint16_t bs_checked; /* checked inode metadata */ 350 unsigned char bs_pad[2]; /* pad space, unused */ 351 __u32 bs_cowextsize; /* cow extent size */ 352 __u32 bs_dmevmask; /* DMIG event mask */ 353 __u16 bs_dmstate; /* DMIG state info */ 354 __u16 bs_aextents; /* attribute number of extents */ 355 }; 356 357 /* New bulkstat structure that reports v5 features and fixes padding issues */ 358 struct xfs_bulkstat { 359 uint64_t bs_ino; /* inode number */ 360 uint64_t bs_size; /* file size */ 361 362 uint64_t bs_blocks; /* number of blocks */ 363 uint64_t bs_xflags; /* extended flags */ 364 365 int64_t bs_atime; /* access time, seconds */ 366 int64_t bs_mtime; /* modify time, seconds */ 367 368 int64_t bs_ctime; /* inode change time, seconds */ 369 int64_t bs_btime; /* creation time, seconds */ 370 371 uint32_t bs_gen; /* generation count */ 372 uint32_t bs_uid; /* user id */ 373 uint32_t bs_gid; /* group id */ 374 uint32_t bs_projectid; /* project id */ 375 376 uint32_t bs_atime_nsec; /* access time, nanoseconds */ 377 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */ 378 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */ 379 uint32_t bs_btime_nsec; /* creation time, nanoseconds */ 380 381 uint32_t bs_blksize; /* block size */ 382 uint32_t bs_rdev; /* device value */ 383 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */ 384 uint32_t bs_extsize_blks; /* extent size hint, blocks */ 385 386 uint32_t bs_nlink; /* number of links */ 387 uint32_t bs_extents; /* 32-bit data fork extent counter */ 388 uint32_t bs_aextents; /* attribute number of extents */ 389 uint16_t bs_version; /* structure version */ 390 uint16_t bs_forkoff; /* inode fork offset in bytes */ 391 392 uint16_t bs_sick; /* sick inode metadata */ 393 uint16_t bs_checked; /* checked inode metadata */ 394 uint16_t bs_mode; /* type and mode */ 395 uint16_t bs_pad2; /* zeroed */ 396 uint64_t bs_extents64; /* 64-bit data fork extent counter */ 397 398 uint64_t bs_pad[6]; /* zeroed */ 399 }; 400 401 #define XFS_BULKSTAT_VERSION_V1 (1) 402 #define XFS_BULKSTAT_VERSION_V5 (5) 403 404 /* bs_sick flags */ 405 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */ 406 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */ 407 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */ 408 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */ 409 #define XFS_BS_SICK_DIR (1 << 4) /* directory */ 410 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */ 411 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */ 412 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */ 413 414 /* 415 * Project quota id helpers (previously projid was 16bit only 416 * and using two 16bit values to hold new 32bit projid was chosen 417 * to retain compatibility with "old" filesystems). 418 */ 419 static inline uint32_t 420 bstat_get_projid(const struct xfs_bstat *bs) 421 { 422 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo; 423 } 424 425 /* 426 * The user-level BulkStat Request interface structure. 427 */ 428 struct xfs_fsop_bulkreq { 429 __u64 __user *lastip; /* last inode # pointer */ 430 __s32 icount; /* count of entries in buffer */ 431 void __user *ubuffer;/* user buffer for inode desc. */ 432 __s32 __user *ocount; /* output count pointer */ 433 }; 434 435 /* 436 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS). 437 */ 438 struct xfs_inogrp { 439 __u64 xi_startino; /* starting inode number */ 440 __s32 xi_alloccount; /* # bits set in allocmask */ 441 __u64 xi_allocmask; /* mask of allocated inodes */ 442 }; 443 444 /* New inumbers structure that reports v5 features and fixes padding issues */ 445 struct xfs_inumbers { 446 uint64_t xi_startino; /* starting inode number */ 447 uint64_t xi_allocmask; /* mask of allocated inodes */ 448 uint8_t xi_alloccount; /* # bits set in allocmask */ 449 uint8_t xi_version; /* version */ 450 uint8_t xi_padding[6]; /* zero */ 451 }; 452 453 #define XFS_INUMBERS_VERSION_V1 (1) 454 #define XFS_INUMBERS_VERSION_V5 (5) 455 456 /* Header for bulk inode requests. */ 457 struct xfs_bulk_ireq { 458 uint64_t ino; /* I/O: start with this inode */ 459 uint32_t flags; /* I/O: operation flags */ 460 uint32_t icount; /* I: count of entries in buffer */ 461 uint32_t ocount; /* O: count of entries filled out */ 462 uint32_t agno; /* I: see comment for IREQ_AGNO */ 463 uint64_t reserved[5]; /* must be zero */ 464 }; 465 466 /* 467 * Only return results from the specified @agno. If @ino is zero, start 468 * with the first inode of @agno. 469 */ 470 #define XFS_BULK_IREQ_AGNO (1U << 0) 471 472 /* 473 * Return bulkstat information for a single inode, where @ino value is a 474 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_* 475 * values below. Not compatible with XFS_BULK_IREQ_AGNO. 476 */ 477 #define XFS_BULK_IREQ_SPECIAL (1U << 1) 478 479 /* 480 * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign 481 * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use 482 * xfs_bulkstat->bs_extents for returning data fork extent count and set 483 * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and 484 * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than 485 * XFS_MAX_EXTCNT_DATA_FORK_OLD. 486 */ 487 #define XFS_BULK_IREQ_NREXT64 (1U << 2) 488 489 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \ 490 XFS_BULK_IREQ_SPECIAL | \ 491 XFS_BULK_IREQ_NREXT64) 492 493 /* Operate on the root directory inode. */ 494 #define XFS_BULK_IREQ_SPECIAL_ROOT (1) 495 496 /* 497 * ioctl structures for v5 bulkstat and inumbers requests 498 */ 499 struct xfs_bulkstat_req { 500 struct xfs_bulk_ireq hdr; 501 struct xfs_bulkstat bulkstat[]; 502 }; 503 #define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \ 504 (nr) * sizeof(struct xfs_bulkstat)) 505 506 struct xfs_inumbers_req { 507 struct xfs_bulk_ireq hdr; 508 struct xfs_inumbers inumbers[]; 509 }; 510 #define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \ 511 (nr) * sizeof(struct xfs_inumbers)) 512 513 /* 514 * Error injection. 515 */ 516 typedef struct xfs_error_injection { 517 __s32 fd; 518 __s32 errtag; 519 } xfs_error_injection_t; 520 521 522 /* 523 * Speculative preallocation trimming. 524 */ 525 #define XFS_EOFBLOCKS_VERSION 1 526 struct xfs_fs_eofblocks { 527 __u32 eof_version; 528 __u32 eof_flags; 529 uid_t eof_uid; 530 gid_t eof_gid; 531 prid_t eof_prid; 532 __u32 pad32; 533 __u64 eof_min_file_size; 534 __u64 pad64[12]; 535 }; 536 537 /* eof_flags values */ 538 #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */ 539 #define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */ 540 #define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */ 541 #define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */ 542 #define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */ 543 #define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm; 544 * kernel only, not included in 545 * valid mask */ 546 #define XFS_EOF_FLAGS_VALID \ 547 (XFS_EOF_FLAGS_SYNC | \ 548 XFS_EOF_FLAGS_UID | \ 549 XFS_EOF_FLAGS_GID | \ 550 XFS_EOF_FLAGS_PRID | \ 551 XFS_EOF_FLAGS_MINFILESIZE) 552 553 554 /* 555 * The user-level Handle Request interface structure. 556 */ 557 typedef struct xfs_fsop_handlereq { 558 __u32 fd; /* fd for FD_TO_HANDLE */ 559 void __user *path; /* user pathname */ 560 __u32 oflags; /* open flags */ 561 void __user *ihandle;/* user supplied handle */ 562 __u32 ihandlen; /* user supplied length */ 563 void __user *ohandle;/* user buffer for handle */ 564 __u32 __user *ohandlen;/* user buffer length */ 565 } xfs_fsop_handlereq_t; 566 567 /* 568 * Compound structures for passing args through Handle Request interfaces 569 * xfs_attrlist_by_handle, xfs_attrmulti_by_handle 570 * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE 571 */ 572 573 /* 574 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface. 575 * 576 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix. 577 */ 578 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */ 579 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */ 580 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */ 581 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */ 582 583 typedef struct xfs_attrlist_cursor { 584 __u32 opaque[4]; 585 } xfs_attrlist_cursor_t; 586 587 /* 588 * Define how lists of attribute names are returned to userspace from the 589 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the 590 * beginning of the returned buffer, and a each entry in al_offset contains the 591 * relative offset of an xfs_attrlist_ent containing the actual entry. 592 * 593 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and 594 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr. 595 */ 596 struct xfs_attrlist { 597 __s32 al_count; /* number of entries in attrlist */ 598 __s32 al_more; /* T/F: more attrs (do call again) */ 599 __s32 al_offset[]; /* byte offsets of attrs [var-sized] */ 600 }; 601 602 struct xfs_attrlist_ent { /* data from attr_list() */ 603 __u32 a_valuelen; /* number bytes in value of attr */ 604 char a_name[]; /* attr name (NULL terminated) */ 605 }; 606 607 typedef struct xfs_fsop_attrlist_handlereq { 608 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 609 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */ 610 __u32 flags; /* which namespace to use */ 611 __u32 buflen; /* length of buffer supplied */ 612 void __user *buffer; /* returned names */ 613 } xfs_fsop_attrlist_handlereq_t; 614 615 typedef struct xfs_attr_multiop { 616 __u32 am_opcode; 617 #define ATTR_OP_GET 1 /* return the indicated attr's value */ 618 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */ 619 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */ 620 __s32 am_error; 621 void __user *am_attrname; 622 void __user *am_attrvalue; 623 __u32 am_length; 624 __u32 am_flags; /* XFS_IOC_ATTR_* */ 625 } xfs_attr_multiop_t; 626 627 typedef struct xfs_fsop_attrmulti_handlereq { 628 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 629 __u32 opcount;/* count of following multiop */ 630 struct xfs_attr_multiop __user *ops; /* attr_multi data */ 631 } xfs_fsop_attrmulti_handlereq_t; 632 633 /* 634 * per machine unique filesystem identifier types. 635 */ 636 typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */ 637 638 typedef struct xfs_fid { 639 __u16 fid_len; /* length of remainder */ 640 __u16 fid_pad; 641 __u32 fid_gen; /* generation number */ 642 __u64 fid_ino; /* 64 bits inode number */ 643 } xfs_fid_t; 644 645 typedef struct xfs_handle { 646 union { 647 __s64 align; /* force alignment of ha_fid */ 648 xfs_fsid_t _ha_fsid; /* unique file system identifier */ 649 } ha_u; 650 xfs_fid_t ha_fid; /* file system specific file ID */ 651 } xfs_handle_t; 652 #define ha_fsid ha_u._ha_fsid 653 654 /* 655 * Structure passed to XFS_IOC_SWAPEXT 656 */ 657 typedef struct xfs_swapext 658 { 659 int64_t sx_version; /* version */ 660 #define XFS_SX_VERSION 0 661 int64_t sx_fdtarget; /* fd of target file */ 662 int64_t sx_fdtmp; /* fd of tmp file */ 663 xfs_off_t sx_offset; /* offset into file */ 664 xfs_off_t sx_length; /* leng from offset */ 665 char sx_pad[16]; /* pad space, unused */ 666 struct xfs_bstat sx_stat; /* stat of target b4 copy */ 667 } xfs_swapext_t; 668 669 /* 670 * Flags for going down operation 671 */ 672 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */ 673 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ 674 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ 675 676 /* metadata scrubbing */ 677 struct xfs_scrub_metadata { 678 __u32 sm_type; /* What to check? */ 679 __u32 sm_flags; /* flags; see below. */ 680 __u64 sm_ino; /* inode number. */ 681 __u32 sm_gen; /* inode generation. */ 682 __u32 sm_agno; /* ag number. */ 683 __u64 sm_reserved[5]; /* pad to 64 bytes */ 684 }; 685 686 /* 687 * Metadata types and flags for scrub operation. 688 */ 689 690 /* Scrub subcommands. */ 691 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */ 692 #define XFS_SCRUB_TYPE_SB 1 /* superblock */ 693 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */ 694 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */ 695 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */ 696 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */ 697 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */ 698 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */ 699 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */ 700 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */ 701 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */ 702 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */ 703 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */ 704 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */ 705 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */ 706 #define XFS_SCRUB_TYPE_DIR 15 /* directory */ 707 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */ 708 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */ 709 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */ 710 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */ 711 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */ 712 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */ 713 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */ 714 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */ 715 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */ 716 #define XFS_SCRUB_TYPE_QUOTACHECK 25 /* quota counters */ 717 #define XFS_SCRUB_TYPE_NLINKS 26 /* inode link counts */ 718 #define XFS_SCRUB_TYPE_HEALTHY 27 /* everything checked out ok */ 719 720 /* Number of scrub subcommands. */ 721 #define XFS_SCRUB_TYPE_NR 28 722 723 /* i: Repair this metadata. */ 724 #define XFS_SCRUB_IFLAG_REPAIR (1u << 0) 725 726 /* o: Metadata object needs repair. */ 727 #define XFS_SCRUB_OFLAG_CORRUPT (1u << 1) 728 729 /* 730 * o: Metadata object could be optimized. It's not corrupt, but 731 * we could improve on it somehow. 732 */ 733 #define XFS_SCRUB_OFLAG_PREEN (1u << 2) 734 735 /* o: Cross-referencing failed. */ 736 #define XFS_SCRUB_OFLAG_XFAIL (1u << 3) 737 738 /* o: Metadata object disagrees with cross-referenced metadata. */ 739 #define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4) 740 741 /* o: Scan was not complete. */ 742 #define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5) 743 744 /* o: Metadata object looked funny but isn't corrupt. */ 745 #define XFS_SCRUB_OFLAG_WARNING (1u << 6) 746 747 /* 748 * o: IFLAG_REPAIR was set but metadata object did not need fixing or 749 * optimization and has therefore not been altered. 750 */ 751 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7) 752 753 /* i: Rebuild the data structure. */ 754 #define XFS_SCRUB_IFLAG_FORCE_REBUILD (1u << 8) 755 756 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR | \ 757 XFS_SCRUB_IFLAG_FORCE_REBUILD) 758 #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \ 759 XFS_SCRUB_OFLAG_PREEN | \ 760 XFS_SCRUB_OFLAG_XFAIL | \ 761 XFS_SCRUB_OFLAG_XCORRUPT | \ 762 XFS_SCRUB_OFLAG_INCOMPLETE | \ 763 XFS_SCRUB_OFLAG_WARNING | \ 764 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED) 765 #define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT) 766 767 /* 768 * ioctl limits 769 */ 770 #ifdef XATTR_LIST_MAX 771 # define XFS_XATTR_LIST_MAX XATTR_LIST_MAX 772 #else 773 # define XFS_XATTR_LIST_MAX 65536 774 #endif 775 776 /* 777 * Exchange part of file1 with part of the file that this ioctl that is being 778 * called against (which we'll call file2). Filesystems must be able to 779 * restart and complete the operation even after the system goes down. 780 */ 781 struct xfs_exchange_range { 782 __s32 file1_fd; 783 __u32 pad; /* must be zeroes */ 784 __u64 file1_offset; /* file1 offset, bytes */ 785 __u64 file2_offset; /* file2 offset, bytes */ 786 __u64 length; /* bytes to exchange */ 787 788 __u64 flags; /* see XFS_EXCHANGE_RANGE_* below */ 789 }; 790 791 /* 792 * Exchange file data all the way to the ends of both files, and then exchange 793 * the file sizes. This flag can be used to replace a file's contents with a 794 * different amount of data. length will be ignored. 795 */ 796 #define XFS_EXCHANGE_RANGE_TO_EOF (1ULL << 0) 797 798 /* Flush all changes in file data and file metadata to disk before returning. */ 799 #define XFS_EXCHANGE_RANGE_DSYNC (1ULL << 1) 800 801 /* Dry run; do all the parameter verification but do not change anything. */ 802 #define XFS_EXCHANGE_RANGE_DRY_RUN (1ULL << 2) 803 804 /* 805 * Exchange only the parts of the two files where the file allocation units 806 * mapped to file1's range have been written to. This can accelerate 807 * scatter-gather atomic writes with a temp file if all writes are aligned to 808 * the file allocation unit. 809 */ 810 #define XFS_EXCHANGE_RANGE_FILE1_WRITTEN (1ULL << 3) 811 812 #define XFS_EXCHANGE_RANGE_ALL_FLAGS (XFS_EXCHANGE_RANGE_TO_EOF | \ 813 XFS_EXCHANGE_RANGE_DSYNC | \ 814 XFS_EXCHANGE_RANGE_DRY_RUN | \ 815 XFS_EXCHANGE_RANGE_FILE1_WRITTEN) 816 817 /* 818 * ioctl commands that are used by Linux filesystems 819 */ 820 #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS 821 #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS 822 #define XFS_IOC_GETVERSION FS_IOC_GETVERSION 823 824 /* 825 * ioctl commands that replace IRIX fcntl()'s 826 * For 'documentation' purposed more than anything else, 827 * the "cmd #" field reflects the IRIX fcntl number. 828 */ 829 /* XFS_IOC_ALLOCSP ------- deprecated 10 */ 830 /* XFS_IOC_FREESP -------- deprecated 11 */ 831 #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr) 832 #define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 833 #define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 834 /* XFS_IOC_ALLOCSP64 ----- deprecated 36 */ 835 /* XFS_IOC_FREESP64 ------ deprecated 37 */ 836 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap) 837 /* XFS_IOC_FSSETDM ------- deprecated 39 */ 838 #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64) 839 #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64) 840 #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64) 841 #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64) 842 #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap) 843 #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr) 844 /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */ 845 /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */ 846 #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap) 847 #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64) 848 #define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks) 849 /* XFS_IOC_GETFSMAP ------ hoisted 59 */ 850 #define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata) 851 #define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry) 852 853 /* 854 * ioctl commands that replace IRIX syssgi()'s 855 */ 856 #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1) 857 #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq) 858 #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq) 859 #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq) 860 #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq) 861 #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq) 862 #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq) 863 #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq) 864 #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq) 865 #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext) 866 #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data) 867 #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log) 868 #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt) 869 #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts) 870 #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks) 871 #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks) 872 #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection) 873 #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection) 874 /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */ 875 876 #define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */ 877 #define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */ 878 879 /* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */ 880 #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq) 881 #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq) 882 #define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4) 883 #define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t) 884 #define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom) 885 #define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req) 886 #define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req) 887 #define XFS_IOC_EXCHANGE_RANGE _IOWR('X', 129, struct xfs_exchange_range) 888 /* XFS_IOC_GETFSUUID ---------- deprecated 140 */ 889 890 891 #ifndef HAVE_BBMACROS 892 /* 893 * Block I/O parameterization. A basic block (BB) is the lowest size of 894 * filesystem allocation, and must equal 512. Length units given to bio 895 * routines are in BB's. 896 */ 897 #define BBSHIFT 9 898 #define BBSIZE (1<<BBSHIFT) 899 #define BBMASK (BBSIZE-1) 900 #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT) 901 #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT) 902 #define BBTOB(bbs) ((bbs) << BBSHIFT) 903 #endif 904 905 #endif /* __XFS_FS_H__ */ 906