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 * NOTE: This file must be compile-able with C++ compilers. 12 */ 13 14 /* 15 * Direct I/O attribute record used with XFS_IOC_DIOINFO 16 * d_miniosz is the min xfer size, xfer size multiple and file seek offset 17 * alignment. 18 */ 19 #ifndef HAVE_DIOATTR 20 struct dioattr { 21 __u32 d_mem; /* data buffer memory alignment */ 22 __u32 d_miniosz; /* min xfer size */ 23 __u32 d_maxiosz; /* max xfer size */ 24 }; 25 #endif 26 27 /* 28 * Structure for XFS_IOC_GETBMAP. 29 * On input, fill in bmv_offset and bmv_length of the first structure 30 * to indicate the area of interest in the file, and bmv_entries with 31 * the number of array elements given back. The first structure is 32 * updated on return to give the offset and length for the next call. 33 */ 34 #ifndef HAVE_GETBMAP 35 struct getbmap { 36 __s64 bmv_offset; /* file offset of segment in blocks */ 37 __s64 bmv_block; /* starting block (64-bit daddr_t) */ 38 __s64 bmv_length; /* length of segment, blocks */ 39 __s32 bmv_count; /* # of entries in array incl. 1st */ 40 __s32 bmv_entries; /* # of entries filled in (output) */ 41 }; 42 #endif 43 44 /* 45 * Structure for XFS_IOC_GETBMAPX. Fields bmv_offset through bmv_entries 46 * are used exactly as in the getbmap structure. The getbmapx structure 47 * has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field 48 * is only used for the first structure. It contains input flags 49 * specifying XFS_IOC_GETBMAPX actions. The bmv_oflags field is filled 50 * in by the XFS_IOC_GETBMAPX command for each returned structure after 51 * the first. 52 */ 53 #ifndef HAVE_GETBMAPX 54 struct getbmapx { 55 __s64 bmv_offset; /* file offset of segment in blocks */ 56 __s64 bmv_block; /* starting block (64-bit daddr_t) */ 57 __s64 bmv_length; /* length of segment, blocks */ 58 __s32 bmv_count; /* # of entries in array incl. 1st */ 59 __s32 bmv_entries; /* # of entries filled in (output). */ 60 __s32 bmv_iflags; /* input flags (1st structure) */ 61 __s32 bmv_oflags; /* output flags (after 1st structure)*/ 62 __s32 bmv_unused1; /* future use */ 63 __s32 bmv_unused2; /* future use */ 64 }; 65 #endif 66 67 /* bmv_iflags values - set by XFS_IOC_GETBMAPX caller. */ 68 #define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */ 69 #define BMV_IF_NO_DMAPI_READ 0x2 /* Deprecated */ 70 #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */ 71 #define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */ 72 #define BMV_IF_NO_HOLES 0x10 /* Do not return holes */ 73 #define BMV_IF_COWFORK 0x20 /* return CoW fork rather than data */ 74 #define BMV_IF_VALID \ 75 (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC| \ 76 BMV_IF_DELALLOC|BMV_IF_NO_HOLES|BMV_IF_COWFORK) 77 78 /* bmv_oflags values - returned for each non-header segment */ 79 #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */ 80 #define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */ 81 #define BMV_OF_LAST 0x4 /* segment is the last in the file */ 82 #define BMV_OF_SHARED 0x8 /* segment shared with another file */ 83 84 /* fmr_owner special values for FS_IOC_GETFSMAP */ 85 #define XFS_FMR_OWN_FREE FMR_OWN_FREE /* free space */ 86 #define XFS_FMR_OWN_UNKNOWN FMR_OWN_UNKNOWN /* unknown owner */ 87 #define XFS_FMR_OWN_FS FMR_OWNER('X', 1) /* static fs metadata */ 88 #define XFS_FMR_OWN_LOG FMR_OWNER('X', 2) /* journalling log */ 89 #define XFS_FMR_OWN_AG FMR_OWNER('X', 3) /* per-AG metadata */ 90 #define XFS_FMR_OWN_INOBT FMR_OWNER('X', 4) /* inode btree blocks */ 91 #define XFS_FMR_OWN_INODES FMR_OWNER('X', 5) /* inodes */ 92 #define XFS_FMR_OWN_REFC FMR_OWNER('X', 6) /* refcount tree */ 93 #define XFS_FMR_OWN_COW FMR_OWNER('X', 7) /* cow staging */ 94 #define XFS_FMR_OWN_DEFECTIVE FMR_OWNER('X', 8) /* bad blocks */ 95 96 /* 97 * File segment locking set data type for 64 bit access. 98 * Also used for all the RESV/FREE interfaces. 99 */ 100 typedef struct xfs_flock64 { 101 __s16 l_type; 102 __s16 l_whence; 103 __s64 l_start; 104 __s64 l_len; /* len == 0 means until end of file */ 105 __s32 l_sysid; 106 __u32 l_pid; 107 __s32 l_pad[4]; /* reserve area */ 108 } xfs_flock64_t; 109 110 /* 111 * Output for XFS_IOC_FSGEOMETRY_V1 112 */ 113 struct xfs_fsop_geom_v1 { 114 __u32 blocksize; /* filesystem (data) block size */ 115 __u32 rtextsize; /* realtime extent size */ 116 __u32 agblocks; /* fsblocks in an AG */ 117 __u32 agcount; /* number of allocation groups */ 118 __u32 logblocks; /* fsblocks in the log */ 119 __u32 sectsize; /* (data) sector size, bytes */ 120 __u32 inodesize; /* inode size in bytes */ 121 __u32 imaxpct; /* max allowed inode space(%) */ 122 __u64 datablocks; /* fsblocks in data subvolume */ 123 __u64 rtblocks; /* fsblocks in realtime subvol */ 124 __u64 rtextents; /* rt extents in realtime subvol*/ 125 __u64 logstart; /* starting fsblock of the log */ 126 unsigned char uuid[16]; /* unique id of the filesystem */ 127 __u32 sunit; /* stripe unit, fsblocks */ 128 __u32 swidth; /* stripe width, fsblocks */ 129 __s32 version; /* structure version */ 130 __u32 flags; /* superblock version flags */ 131 __u32 logsectsize; /* log sector size, bytes */ 132 __u32 rtsectsize; /* realtime sector size, bytes */ 133 __u32 dirblocksize; /* directory block size, bytes */ 134 }; 135 136 /* 137 * Output for XFS_IOC_FSGEOMETRY_V4 138 */ 139 struct xfs_fsop_geom_v4 { 140 __u32 blocksize; /* filesystem (data) block size */ 141 __u32 rtextsize; /* realtime extent size */ 142 __u32 agblocks; /* fsblocks in an AG */ 143 __u32 agcount; /* number of allocation groups */ 144 __u32 logblocks; /* fsblocks in the log */ 145 __u32 sectsize; /* (data) sector size, bytes */ 146 __u32 inodesize; /* inode size in bytes */ 147 __u32 imaxpct; /* max allowed inode space(%) */ 148 __u64 datablocks; /* fsblocks in data subvolume */ 149 __u64 rtblocks; /* fsblocks in realtime subvol */ 150 __u64 rtextents; /* rt extents in realtime subvol*/ 151 __u64 logstart; /* starting fsblock of the log */ 152 unsigned char uuid[16]; /* unique id of the filesystem */ 153 __u32 sunit; /* stripe unit, fsblocks */ 154 __u32 swidth; /* stripe width, fsblocks */ 155 __s32 version; /* structure version */ 156 __u32 flags; /* superblock version flags */ 157 __u32 logsectsize; /* log sector size, bytes */ 158 __u32 rtsectsize; /* realtime sector size, bytes */ 159 __u32 dirblocksize; /* directory block size, bytes */ 160 __u32 logsunit; /* log stripe unit, bytes */ 161 }; 162 163 /* 164 * Output for XFS_IOC_FSGEOMETRY 165 */ 166 struct xfs_fsop_geom { 167 __u32 blocksize; /* filesystem (data) block size */ 168 __u32 rtextsize; /* realtime extent size */ 169 __u32 agblocks; /* fsblocks in an AG */ 170 __u32 agcount; /* number of allocation groups */ 171 __u32 logblocks; /* fsblocks in the log */ 172 __u32 sectsize; /* (data) sector size, bytes */ 173 __u32 inodesize; /* inode size in bytes */ 174 __u32 imaxpct; /* max allowed inode space(%) */ 175 __u64 datablocks; /* fsblocks in data subvolume */ 176 __u64 rtblocks; /* fsblocks in realtime subvol */ 177 __u64 rtextents; /* rt extents in realtime subvol*/ 178 __u64 logstart; /* starting fsblock of the log */ 179 unsigned char uuid[16]; /* unique id of the filesystem */ 180 __u32 sunit; /* stripe unit, fsblocks */ 181 __u32 swidth; /* stripe width, fsblocks */ 182 __s32 version; /* structure version */ 183 __u32 flags; /* superblock version flags */ 184 __u32 logsectsize; /* log sector size, bytes */ 185 __u32 rtsectsize; /* realtime sector size, bytes */ 186 __u32 dirblocksize; /* directory block size, bytes */ 187 __u32 logsunit; /* log stripe unit, bytes */ 188 uint32_t sick; /* o: unhealthy fs & rt metadata */ 189 uint32_t checked; /* o: checked fs & rt metadata */ 190 __u32 rgextents; /* rt extents in a realtime group */ 191 __u32 rgcount; /* number of realtime groups */ 192 __u64 rtstart; /* start of internal rt section */ 193 __u64 rtreserved; /* RT (zoned) reserved blocks */ 194 __u64 reserved[14]; /* reserved space */ 195 }; 196 197 #define XFS_FSOP_GEOM_SICK_COUNTERS (1 << 0) /* summary counters */ 198 #define XFS_FSOP_GEOM_SICK_UQUOTA (1 << 1) /* user quota */ 199 #define XFS_FSOP_GEOM_SICK_GQUOTA (1 << 2) /* group quota */ 200 #define XFS_FSOP_GEOM_SICK_PQUOTA (1 << 3) /* project quota */ 201 #define XFS_FSOP_GEOM_SICK_RT_BITMAP (1 << 4) /* realtime bitmap */ 202 #define XFS_FSOP_GEOM_SICK_RT_SUMMARY (1 << 5) /* realtime summary */ 203 #define XFS_FSOP_GEOM_SICK_QUOTACHECK (1 << 6) /* quota counts */ 204 #define XFS_FSOP_GEOM_SICK_NLINKS (1 << 7) /* inode link counts */ 205 #define XFS_FSOP_GEOM_SICK_METADIR (1 << 8) /* metadata directory */ 206 #define XFS_FSOP_GEOM_SICK_METAPATH (1 << 9) /* metadir tree path */ 207 208 /* Output for XFS_FS_COUNTS */ 209 typedef struct xfs_fsop_counts { 210 __u64 freedata; /* free data section blocks */ 211 __u64 freertx; /* free rt extents */ 212 __u64 freeino; /* free inodes */ 213 __u64 allocino; /* total allocated inodes */ 214 } xfs_fsop_counts_t; 215 216 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */ 217 typedef struct xfs_fsop_resblks { 218 __u64 resblks; 219 __u64 resblks_avail; 220 } xfs_fsop_resblks_t; 221 222 #define XFS_FSOP_GEOM_VERSION 0 223 #define XFS_FSOP_GEOM_VERSION_V5 5 224 225 #define XFS_FSOP_GEOM_FLAGS_ATTR (1 << 0) /* attributes in use */ 226 #define XFS_FSOP_GEOM_FLAGS_NLINK (1 << 1) /* 32-bit nlink values */ 227 #define XFS_FSOP_GEOM_FLAGS_QUOTA (1 << 2) /* quotas enabled */ 228 #define XFS_FSOP_GEOM_FLAGS_IALIGN (1 << 3) /* inode alignment */ 229 #define XFS_FSOP_GEOM_FLAGS_DALIGN (1 << 4) /* large data alignment */ 230 #define XFS_FSOP_GEOM_FLAGS_SHARED (1 << 5) /* read-only shared */ 231 #define XFS_FSOP_GEOM_FLAGS_EXTFLG (1 << 6) /* special extent flag */ 232 #define XFS_FSOP_GEOM_FLAGS_DIRV2 (1 << 7) /* directory version 2 */ 233 #define XFS_FSOP_GEOM_FLAGS_LOGV2 (1 << 8) /* log format version 2 */ 234 #define XFS_FSOP_GEOM_FLAGS_SECTOR (1 << 9) /* sector sizes >1BB */ 235 #define XFS_FSOP_GEOM_FLAGS_ATTR2 (1 << 10) /* inline attributes rework */ 236 #define XFS_FSOP_GEOM_FLAGS_PROJID32 (1 << 11) /* 32-bit project IDs */ 237 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI (1 << 12) /* ASCII only CI names */ 238 /* -- Do not use -- (1 << 13) SGI parent pointers */ 239 #define XFS_FSOP_GEOM_FLAGS_LAZYSB (1 << 14) /* lazy superblock counters */ 240 #define XFS_FSOP_GEOM_FLAGS_V5SB (1 << 15) /* version 5 superblock */ 241 #define XFS_FSOP_GEOM_FLAGS_FTYPE (1 << 16) /* inode directory types */ 242 #define XFS_FSOP_GEOM_FLAGS_FINOBT (1 << 17) /* free inode btree */ 243 #define XFS_FSOP_GEOM_FLAGS_SPINODES (1 << 18) /* sparse inode chunks */ 244 #define XFS_FSOP_GEOM_FLAGS_RMAPBT (1 << 19) /* reverse mapping btree */ 245 #define XFS_FSOP_GEOM_FLAGS_REFLINK (1 << 20) /* files can share blocks */ 246 #define XFS_FSOP_GEOM_FLAGS_BIGTIME (1 << 21) /* 64-bit nsec timestamps */ 247 #define XFS_FSOP_GEOM_FLAGS_INOBTCNT (1 << 22) /* inobt btree counter */ 248 #define XFS_FSOP_GEOM_FLAGS_NREXT64 (1 << 23) /* large extent counters */ 249 #define XFS_FSOP_GEOM_FLAGS_EXCHANGE_RANGE (1 << 24) /* exchange range */ 250 #define XFS_FSOP_GEOM_FLAGS_PARENT (1 << 25) /* linux parent pointers */ 251 #define XFS_FSOP_GEOM_FLAGS_METADIR (1 << 26) /* metadata directories */ 252 #define XFS_FSOP_GEOM_FLAGS_ZONED (1 << 27) /* zoned rt device */ 253 254 /* 255 * Minimum and maximum sizes need for growth checks. 256 * 257 * Block counts are in units of filesystem blocks, not basic blocks. 258 */ 259 #define XFS_MIN_AG_BLOCKS 64 260 #define XFS_MIN_LOG_BLOCKS 512ULL 261 #define XFS_MAX_LOG_BLOCKS (1024 * 1024ULL) 262 #define XFS_MIN_LOG_BYTES (10 * 1024 * 1024ULL) 263 264 /* 265 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than 266 * 16MB or larger than 1TB. 267 */ 268 #define XFS_MIN_AG_BYTES (1ULL << 24) /* 16 MB */ 269 #define XFS_MAX_AG_BYTES (1ULL << 40) /* 1 TB */ 270 #define XFS_MAX_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_BLOCKSIZE) 271 #define XFS_MAX_CRC_AG_BLOCKS (XFS_MAX_AG_BYTES / XFS_MIN_CRC_BLOCKSIZE) 272 273 #define XFS_MAX_AGNUMBER ((xfs_agnumber_t)(NULLAGNUMBER - 1)) 274 275 /* keep the maximum size under 2^31 by a small amount */ 276 #define XFS_MAX_LOG_BYTES \ 277 ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES) 278 279 /* Used for sanity checks on superblock */ 280 #define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks) 281 #define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) * \ 282 (s)->sb_agblocks + XFS_MIN_AG_BLOCKS) 283 284 /* 285 * Output for XFS_IOC_AG_GEOMETRY 286 */ 287 struct xfs_ag_geometry { 288 uint32_t ag_number; /* i/o: AG number */ 289 uint32_t ag_length; /* o: length in blocks */ 290 uint32_t ag_freeblks; /* o: free space */ 291 uint32_t ag_icount; /* o: inodes allocated */ 292 uint32_t ag_ifree; /* o: inodes free */ 293 uint32_t ag_sick; /* o: sick things in ag */ 294 uint32_t ag_checked; /* o: checked metadata in ag */ 295 uint32_t ag_flags; /* i/o: flags for this ag */ 296 uint64_t ag_reserved[12];/* o: zero */ 297 }; 298 #define XFS_AG_GEOM_SICK_SB (1 << 0) /* superblock */ 299 #define XFS_AG_GEOM_SICK_AGF (1 << 1) /* AGF header */ 300 #define XFS_AG_GEOM_SICK_AGFL (1 << 2) /* AGFL header */ 301 #define XFS_AG_GEOM_SICK_AGI (1 << 3) /* AGI header */ 302 #define XFS_AG_GEOM_SICK_BNOBT (1 << 4) /* free space by block */ 303 #define XFS_AG_GEOM_SICK_CNTBT (1 << 5) /* free space by length */ 304 #define XFS_AG_GEOM_SICK_INOBT (1 << 6) /* inode index */ 305 #define XFS_AG_GEOM_SICK_FINOBT (1 << 7) /* free inode index */ 306 #define XFS_AG_GEOM_SICK_RMAPBT (1 << 8) /* reverse mappings */ 307 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9) /* reference counts */ 308 #define XFS_AG_GEOM_SICK_INODES (1 << 10) /* bad inodes were seen */ 309 310 /* 311 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT 312 */ 313 typedef struct xfs_growfs_data { 314 __u64 newblocks; /* new data subvol size, fsblocks */ 315 __u32 imaxpct; /* new inode space percentage limit */ 316 } xfs_growfs_data_t; 317 318 typedef struct xfs_growfs_log { 319 __u32 newblocks; /* new log size, fsblocks */ 320 __u32 isint; /* 1 if new log is internal */ 321 } xfs_growfs_log_t; 322 323 typedef struct xfs_growfs_rt { 324 __u64 newblocks; /* new realtime size, fsblocks */ 325 __u32 extsize; /* new realtime extent size, fsblocks */ 326 } xfs_growfs_rt_t; 327 328 329 /* 330 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE 331 */ 332 typedef struct xfs_bstime { 333 __kernel_long_t tv_sec; /* seconds */ 334 __s32 tv_nsec; /* and nanoseconds */ 335 } xfs_bstime_t; 336 337 struct xfs_bstat { 338 __u64 bs_ino; /* inode number */ 339 __u16 bs_mode; /* type and mode */ 340 __u16 bs_nlink; /* number of links */ 341 __u32 bs_uid; /* user id */ 342 __u32 bs_gid; /* group id */ 343 __u32 bs_rdev; /* device value */ 344 __s32 bs_blksize; /* block size */ 345 __s64 bs_size; /* file size */ 346 xfs_bstime_t bs_atime; /* access time */ 347 xfs_bstime_t bs_mtime; /* modify time */ 348 xfs_bstime_t bs_ctime; /* inode change time */ 349 int64_t bs_blocks; /* number of blocks */ 350 __u32 bs_xflags; /* extended flags */ 351 __s32 bs_extsize; /* extent size */ 352 __s32 bs_extents; /* number of extents */ 353 __u32 bs_gen; /* generation count */ 354 __u16 bs_projid_lo; /* lower part of project id */ 355 #define bs_projid bs_projid_lo /* (previously just bs_projid) */ 356 __u16 bs_forkoff; /* inode fork offset in bytes */ 357 __u16 bs_projid_hi; /* higher part of project id */ 358 uint16_t bs_sick; /* sick inode metadata */ 359 uint16_t bs_checked; /* checked inode metadata */ 360 unsigned char bs_pad[2]; /* pad space, unused */ 361 __u32 bs_cowextsize; /* cow extent size */ 362 __u32 bs_dmevmask; /* DMIG event mask */ 363 __u16 bs_dmstate; /* DMIG state info */ 364 __u16 bs_aextents; /* attribute number of extents */ 365 }; 366 367 /* New bulkstat structure that reports v5 features and fixes padding issues */ 368 struct xfs_bulkstat { 369 uint64_t bs_ino; /* inode number */ 370 uint64_t bs_size; /* file size */ 371 372 uint64_t bs_blocks; /* number of blocks */ 373 uint64_t bs_xflags; /* extended flags */ 374 375 int64_t bs_atime; /* access time, seconds */ 376 int64_t bs_mtime; /* modify time, seconds */ 377 378 int64_t bs_ctime; /* inode change time, seconds */ 379 int64_t bs_btime; /* creation time, seconds */ 380 381 uint32_t bs_gen; /* generation count */ 382 uint32_t bs_uid; /* user id */ 383 uint32_t bs_gid; /* group id */ 384 uint32_t bs_projectid; /* project id */ 385 386 uint32_t bs_atime_nsec; /* access time, nanoseconds */ 387 uint32_t bs_mtime_nsec; /* modify time, nanoseconds */ 388 uint32_t bs_ctime_nsec; /* inode change time, nanoseconds */ 389 uint32_t bs_btime_nsec; /* creation time, nanoseconds */ 390 391 uint32_t bs_blksize; /* block size */ 392 uint32_t bs_rdev; /* device value */ 393 uint32_t bs_cowextsize_blks; /* cow extent size hint, blocks */ 394 uint32_t bs_extsize_blks; /* extent size hint, blocks */ 395 396 uint32_t bs_nlink; /* number of links */ 397 uint32_t bs_extents; /* 32-bit data fork extent counter */ 398 uint32_t bs_aextents; /* attribute number of extents */ 399 uint16_t bs_version; /* structure version */ 400 uint16_t bs_forkoff; /* inode fork offset in bytes */ 401 402 uint16_t bs_sick; /* sick inode metadata */ 403 uint16_t bs_checked; /* checked inode metadata */ 404 uint16_t bs_mode; /* type and mode */ 405 uint16_t bs_pad2; /* zeroed */ 406 uint64_t bs_extents64; /* 64-bit data fork extent counter */ 407 408 uint64_t bs_pad[6]; /* zeroed */ 409 }; 410 411 #define XFS_BULKSTAT_VERSION_V1 (1) 412 #define XFS_BULKSTAT_VERSION_V5 (5) 413 414 /* bs_sick flags */ 415 #define XFS_BS_SICK_INODE (1 << 0) /* inode core */ 416 #define XFS_BS_SICK_BMBTD (1 << 1) /* data fork */ 417 #define XFS_BS_SICK_BMBTA (1 << 2) /* attr fork */ 418 #define XFS_BS_SICK_BMBTC (1 << 3) /* cow fork */ 419 #define XFS_BS_SICK_DIR (1 << 4) /* directory */ 420 #define XFS_BS_SICK_XATTR (1 << 5) /* extended attributes */ 421 #define XFS_BS_SICK_SYMLINK (1 << 6) /* symbolic link remote target */ 422 #define XFS_BS_SICK_PARENT (1 << 7) /* parent pointers */ 423 #define XFS_BS_SICK_DIRTREE (1 << 8) /* directory tree structure */ 424 425 /* 426 * Project quota id helpers (previously projid was 16bit only 427 * and using two 16bit values to hold new 32bit projid was chosen 428 * to retain compatibility with "old" filesystems). 429 */ 430 static inline uint32_t 431 bstat_get_projid(const struct xfs_bstat *bs) 432 { 433 return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo; 434 } 435 436 /* 437 * The user-level BulkStat Request interface structure. 438 */ 439 struct xfs_fsop_bulkreq { 440 __u64 __user *lastip; /* last inode # pointer */ 441 __s32 icount; /* count of entries in buffer */ 442 void __user *ubuffer;/* user buffer for inode desc. */ 443 __s32 __user *ocount; /* output count pointer */ 444 }; 445 446 /* 447 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS). 448 */ 449 struct xfs_inogrp { 450 __u64 xi_startino; /* starting inode number */ 451 __s32 xi_alloccount; /* # bits set in allocmask */ 452 __u64 xi_allocmask; /* mask of allocated inodes */ 453 }; 454 455 /* New inumbers structure that reports v5 features and fixes padding issues */ 456 struct xfs_inumbers { 457 uint64_t xi_startino; /* starting inode number */ 458 uint64_t xi_allocmask; /* mask of allocated inodes */ 459 uint8_t xi_alloccount; /* # bits set in allocmask */ 460 uint8_t xi_version; /* version */ 461 uint8_t xi_padding[6]; /* zero */ 462 }; 463 464 #define XFS_INUMBERS_VERSION_V1 (1) 465 #define XFS_INUMBERS_VERSION_V5 (5) 466 467 /* Header for bulk inode requests. */ 468 struct xfs_bulk_ireq { 469 uint64_t ino; /* I/O: start with this inode */ 470 uint32_t flags; /* I/O: operation flags */ 471 uint32_t icount; /* I: count of entries in buffer */ 472 uint32_t ocount; /* O: count of entries filled out */ 473 uint32_t agno; /* I: see comment for IREQ_AGNO */ 474 uint64_t reserved[5]; /* must be zero */ 475 }; 476 477 /* 478 * Only return results from the specified @agno. If @ino is zero, start 479 * with the first inode of @agno. 480 */ 481 #define XFS_BULK_IREQ_AGNO (1U << 0) 482 483 /* 484 * Return bulkstat information for a single inode, where @ino value is a 485 * special value, not a literal inode number. See the XFS_BULK_IREQ_SPECIAL_* 486 * values below. Not compatible with XFS_BULK_IREQ_AGNO. 487 */ 488 #define XFS_BULK_IREQ_SPECIAL (1U << 1) 489 490 /* 491 * Return data fork extent count via xfs_bulkstat->bs_extents64 field and assign 492 * 0 to xfs_bulkstat->bs_extents when the flag is set. Otherwise, use 493 * xfs_bulkstat->bs_extents for returning data fork extent count and set 494 * xfs_bulkstat->bs_extents64 to 0. In the second case, return -EOVERFLOW and 495 * assign 0 to xfs_bulkstat->bs_extents if data fork extent count is larger than 496 * XFS_MAX_EXTCNT_DATA_FORK_OLD. 497 */ 498 #define XFS_BULK_IREQ_NREXT64 (1U << 2) 499 500 /* 501 * Allow bulkstat to return information about metadata directories. This 502 * enables xfs_scrub to find them for scanning, as they are otherwise ordinary 503 * directories. 504 */ 505 #define XFS_BULK_IREQ_METADIR (1U << 3) 506 507 #define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO | \ 508 XFS_BULK_IREQ_SPECIAL | \ 509 XFS_BULK_IREQ_NREXT64 | \ 510 XFS_BULK_IREQ_METADIR) 511 512 /* Operate on the root directory inode. */ 513 #define XFS_BULK_IREQ_SPECIAL_ROOT (1) 514 515 /* 516 * ioctl structures for v5 bulkstat and inumbers requests 517 */ 518 struct xfs_bulkstat_req { 519 struct xfs_bulk_ireq hdr; 520 struct xfs_bulkstat bulkstat[]; 521 }; 522 #define XFS_BULKSTAT_REQ_SIZE(nr) (sizeof(struct xfs_bulkstat_req) + \ 523 (nr) * sizeof(struct xfs_bulkstat)) 524 525 struct xfs_inumbers_req { 526 struct xfs_bulk_ireq hdr; 527 struct xfs_inumbers inumbers[]; 528 }; 529 #define XFS_INUMBERS_REQ_SIZE(nr) (sizeof(struct xfs_inumbers_req) + \ 530 (nr) * sizeof(struct xfs_inumbers)) 531 532 /* 533 * Error injection. 534 */ 535 typedef struct xfs_error_injection { 536 __s32 fd; 537 __s32 errtag; 538 } xfs_error_injection_t; 539 540 541 /* 542 * Speculative preallocation trimming. 543 */ 544 #define XFS_EOFBLOCKS_VERSION 1 545 struct xfs_fs_eofblocks { 546 __u32 eof_version; 547 __u32 eof_flags; 548 uid_t eof_uid; 549 gid_t eof_gid; 550 prid_t eof_prid; 551 __u32 pad32; 552 __u64 eof_min_file_size; 553 __u64 pad64[12]; 554 }; 555 556 /* eof_flags values */ 557 #define XFS_EOF_FLAGS_SYNC (1 << 0) /* sync/wait mode scan */ 558 #define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */ 559 #define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */ 560 #define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */ 561 #define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */ 562 #define XFS_EOF_FLAGS_UNION (1 << 5) /* union filter algorithm; 563 * kernel only, not included in 564 * valid mask */ 565 #define XFS_EOF_FLAGS_VALID \ 566 (XFS_EOF_FLAGS_SYNC | \ 567 XFS_EOF_FLAGS_UID | \ 568 XFS_EOF_FLAGS_GID | \ 569 XFS_EOF_FLAGS_PRID | \ 570 XFS_EOF_FLAGS_MINFILESIZE) 571 572 573 /* 574 * The user-level Handle Request interface structure. 575 */ 576 typedef struct xfs_fsop_handlereq { 577 __u32 fd; /* fd for FD_TO_HANDLE */ 578 void __user *path; /* user pathname */ 579 __u32 oflags; /* open flags */ 580 void __user *ihandle;/* user supplied handle */ 581 __u32 ihandlen; /* user supplied length */ 582 void __user *ohandle;/* user buffer for handle */ 583 __u32 __user *ohandlen;/* user buffer length */ 584 } xfs_fsop_handlereq_t; 585 586 /* 587 * Compound structures for passing args through Handle Request interfaces 588 * xfs_attrlist_by_handle, xfs_attrmulti_by_handle 589 * - ioctls: XFS_IOC_ATTRLIST_BY_HANDLE, and XFS_IOC_ATTRMULTI_BY_HANDLE 590 */ 591 592 /* 593 * Flags passed in xfs_attr_multiop.am_flags for the attr ioctl interface. 594 * 595 * NOTE: Must match the values declared in libattr without the XFS_IOC_ prefix. 596 */ 597 #define XFS_IOC_ATTR_ROOT 0x0002 /* use attrs in root namespace */ 598 #define XFS_IOC_ATTR_SECURE 0x0008 /* use attrs in security namespace */ 599 #define XFS_IOC_ATTR_CREATE 0x0010 /* fail if attr already exists */ 600 #define XFS_IOC_ATTR_REPLACE 0x0020 /* fail if attr does not exist */ 601 602 typedef struct xfs_attrlist_cursor { 603 __u32 opaque[4]; 604 } xfs_attrlist_cursor_t; 605 606 /* 607 * Define how lists of attribute names are returned to userspace from the 608 * XFS_IOC_ATTRLIST_BY_HANDLE ioctl. struct xfs_attrlist is the header at the 609 * beginning of the returned buffer, and a each entry in al_offset contains the 610 * relative offset of an xfs_attrlist_ent containing the actual entry. 611 * 612 * NOTE: struct xfs_attrlist must match struct attrlist defined in libattr, and 613 * struct xfs_attrlist_ent must match struct attrlist_ent defined in libattr. 614 */ 615 struct xfs_attrlist { 616 __s32 al_count; /* number of entries in attrlist */ 617 __s32 al_more; /* T/F: more attrs (do call again) */ 618 __s32 al_offset[]; /* byte offsets of attrs [var-sized] */ 619 }; 620 621 struct xfs_attrlist_ent { /* data from attr_list() */ 622 __u32 a_valuelen; /* number bytes in value of attr */ 623 char a_name[]; /* attr name (NULL terminated) */ 624 }; 625 626 typedef struct xfs_fsop_attrlist_handlereq { 627 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 628 struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */ 629 __u32 flags; /* which namespace to use */ 630 __u32 buflen; /* length of buffer supplied */ 631 void __user *buffer; /* returned names */ 632 } xfs_fsop_attrlist_handlereq_t; 633 634 typedef struct xfs_attr_multiop { 635 __u32 am_opcode; 636 #define ATTR_OP_GET 1 /* return the indicated attr's value */ 637 #define ATTR_OP_SET 2 /* set/create the indicated attr/value pair */ 638 #define ATTR_OP_REMOVE 3 /* remove the indicated attr */ 639 __s32 am_error; 640 void __user *am_attrname; 641 void __user *am_attrvalue; 642 __u32 am_length; 643 __u32 am_flags; /* XFS_IOC_ATTR_* */ 644 } xfs_attr_multiop_t; 645 646 typedef struct xfs_fsop_attrmulti_handlereq { 647 struct xfs_fsop_handlereq hreq; /* handle interface structure */ 648 __u32 opcount;/* count of following multiop */ 649 struct xfs_attr_multiop __user *ops; /* attr_multi data */ 650 } xfs_fsop_attrmulti_handlereq_t; 651 652 /* 653 * per machine unique filesystem identifier types. 654 */ 655 typedef struct xfs_fsid { 656 __u32 val[2]; /* file system id type */ 657 } xfs_fsid_t; 658 659 typedef struct xfs_fid { 660 __u16 fid_len; /* length of remainder */ 661 __u16 fid_pad; 662 __u32 fid_gen; /* generation number */ 663 __u64 fid_ino; /* 64 bits inode number */ 664 } xfs_fid_t; 665 666 typedef struct xfs_handle { 667 union { 668 __s64 align; /* force alignment of ha_fid */ 669 xfs_fsid_t _ha_fsid; /* unique file system identifier */ 670 } ha_u; 671 xfs_fid_t ha_fid; /* file system specific file ID */ 672 } xfs_handle_t; 673 #define ha_fsid ha_u._ha_fsid 674 675 /* 676 * Structure passed to XFS_IOC_SWAPEXT 677 */ 678 typedef struct xfs_swapext 679 { 680 int64_t sx_version; /* version */ 681 #define XFS_SX_VERSION 0 682 int64_t sx_fdtarget; /* fd of target file */ 683 int64_t sx_fdtmp; /* fd of tmp file */ 684 xfs_off_t sx_offset; /* offset into file */ 685 xfs_off_t sx_length; /* leng from offset */ 686 char sx_pad[16]; /* pad space, unused */ 687 struct xfs_bstat sx_stat; /* stat of target b4 copy */ 688 } xfs_swapext_t; 689 690 /* 691 * Flags for going down operation 692 */ 693 #define XFS_FSOP_GOING_FLAGS_DEFAULT 0x0 /* going down */ 694 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ 695 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ 696 697 /* metadata scrubbing */ 698 struct xfs_scrub_metadata { 699 __u32 sm_type; /* What to check? */ 700 __u32 sm_flags; /* flags; see below. */ 701 __u64 sm_ino; /* inode number. */ 702 __u32 sm_gen; /* inode generation. */ 703 __u32 sm_agno; /* ag number. */ 704 __u64 sm_reserved[5]; /* pad to 64 bytes */ 705 }; 706 707 /* 708 * Metadata types and flags for scrub operation. 709 */ 710 711 /* Scrub subcommands. */ 712 #define XFS_SCRUB_TYPE_PROBE 0 /* presence test ioctl */ 713 #define XFS_SCRUB_TYPE_SB 1 /* superblock */ 714 #define XFS_SCRUB_TYPE_AGF 2 /* AG free header */ 715 #define XFS_SCRUB_TYPE_AGFL 3 /* AG free list */ 716 #define XFS_SCRUB_TYPE_AGI 4 /* AG inode header */ 717 #define XFS_SCRUB_TYPE_BNOBT 5 /* freesp by block btree */ 718 #define XFS_SCRUB_TYPE_CNTBT 6 /* freesp by length btree */ 719 #define XFS_SCRUB_TYPE_INOBT 7 /* inode btree */ 720 #define XFS_SCRUB_TYPE_FINOBT 8 /* free inode btree */ 721 #define XFS_SCRUB_TYPE_RMAPBT 9 /* reverse mapping btree */ 722 #define XFS_SCRUB_TYPE_REFCNTBT 10 /* reference count btree */ 723 #define XFS_SCRUB_TYPE_INODE 11 /* inode record */ 724 #define XFS_SCRUB_TYPE_BMBTD 12 /* data fork block mapping */ 725 #define XFS_SCRUB_TYPE_BMBTA 13 /* attr fork block mapping */ 726 #define XFS_SCRUB_TYPE_BMBTC 14 /* CoW fork block mapping */ 727 #define XFS_SCRUB_TYPE_DIR 15 /* directory */ 728 #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */ 729 #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */ 730 #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */ 731 #define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */ 732 #define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */ 733 #define XFS_SCRUB_TYPE_UQUOTA 21 /* user quotas */ 734 #define XFS_SCRUB_TYPE_GQUOTA 22 /* group quotas */ 735 #define XFS_SCRUB_TYPE_PQUOTA 23 /* project quotas */ 736 #define XFS_SCRUB_TYPE_FSCOUNTERS 24 /* fs summary counters */ 737 #define XFS_SCRUB_TYPE_QUOTACHECK 25 /* quota counters */ 738 #define XFS_SCRUB_TYPE_NLINKS 26 /* inode link counts */ 739 #define XFS_SCRUB_TYPE_HEALTHY 27 /* everything checked out ok */ 740 #define XFS_SCRUB_TYPE_DIRTREE 28 /* directory tree structure */ 741 #define XFS_SCRUB_TYPE_METAPATH 29 /* metadata directory tree paths */ 742 #define XFS_SCRUB_TYPE_RGSUPER 30 /* realtime superblock */ 743 #define XFS_SCRUB_TYPE_RTRMAPBT 31 /* rtgroup reverse mapping btree */ 744 #define XFS_SCRUB_TYPE_RTREFCBT 32 /* realtime reference count btree */ 745 746 /* Number of scrub subcommands. */ 747 #define XFS_SCRUB_TYPE_NR 33 748 749 /* 750 * This special type code only applies to the vectored scrub implementation. 751 * 752 * If any of the previous scrub vectors recorded runtime errors or have 753 * sv_flags bits set that match the OFLAG bits in the barrier vector's 754 * sv_flags, set the barrier's sv_ret to -ECANCELED and return to userspace. 755 */ 756 #define XFS_SCRUB_TYPE_BARRIER (0xFFFFFFFF) 757 758 /* i: Repair this metadata. */ 759 #define XFS_SCRUB_IFLAG_REPAIR (1u << 0) 760 761 /* o: Metadata object needs repair. */ 762 #define XFS_SCRUB_OFLAG_CORRUPT (1u << 1) 763 764 /* 765 * o: Metadata object could be optimized. It's not corrupt, but 766 * we could improve on it somehow. 767 */ 768 #define XFS_SCRUB_OFLAG_PREEN (1u << 2) 769 770 /* o: Cross-referencing failed. */ 771 #define XFS_SCRUB_OFLAG_XFAIL (1u << 3) 772 773 /* o: Metadata object disagrees with cross-referenced metadata. */ 774 #define XFS_SCRUB_OFLAG_XCORRUPT (1u << 4) 775 776 /* o: Scan was not complete. */ 777 #define XFS_SCRUB_OFLAG_INCOMPLETE (1u << 5) 778 779 /* o: Metadata object looked funny but isn't corrupt. */ 780 #define XFS_SCRUB_OFLAG_WARNING (1u << 6) 781 782 /* 783 * o: IFLAG_REPAIR was set but metadata object did not need fixing or 784 * optimization and has therefore not been altered. 785 */ 786 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7) 787 788 /* i: Rebuild the data structure. */ 789 #define XFS_SCRUB_IFLAG_FORCE_REBUILD (1u << 8) 790 791 #define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR | \ 792 XFS_SCRUB_IFLAG_FORCE_REBUILD) 793 #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \ 794 XFS_SCRUB_OFLAG_PREEN | \ 795 XFS_SCRUB_OFLAG_XFAIL | \ 796 XFS_SCRUB_OFLAG_XCORRUPT | \ 797 XFS_SCRUB_OFLAG_INCOMPLETE | \ 798 XFS_SCRUB_OFLAG_WARNING | \ 799 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED) 800 #define XFS_SCRUB_FLAGS_ALL (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT) 801 802 /* Vectored scrub calls to reduce the number of kernel transitions. */ 803 804 struct xfs_scrub_vec { 805 __u32 sv_type; /* XFS_SCRUB_TYPE_* */ 806 __u32 sv_flags; /* XFS_SCRUB_FLAGS_* */ 807 __s32 sv_ret; /* 0 or a negative error code */ 808 __u32 sv_reserved; /* must be zero */ 809 }; 810 811 /* Vectored metadata scrub control structure. */ 812 struct xfs_scrub_vec_head { 813 __u64 svh_ino; /* inode number. */ 814 __u32 svh_gen; /* inode generation. */ 815 __u32 svh_agno; /* ag number. */ 816 __u32 svh_flags; /* XFS_SCRUB_VEC_FLAGS_* */ 817 __u16 svh_rest_us; /* wait this much time between vector items */ 818 __u16 svh_nr; /* number of svh_vectors */ 819 __u64 svh_reserved; /* must be zero */ 820 __u64 svh_vectors; /* pointer to buffer of xfs_scrub_vec */ 821 }; 822 823 #define XFS_SCRUB_VEC_FLAGS_ALL (0) 824 825 /* 826 * i: sm_ino values for XFS_SCRUB_TYPE_METAPATH to select a metadata file for 827 * path checking. 828 */ 829 #define XFS_SCRUB_METAPATH_PROBE (0) /* do we have a metapath scrubber? */ 830 #define XFS_SCRUB_METAPATH_RTDIR (1) /* rtrgroups metadir */ 831 #define XFS_SCRUB_METAPATH_RTBITMAP (2) /* per-rtg bitmap */ 832 #define XFS_SCRUB_METAPATH_RTSUMMARY (3) /* per-rtg summary */ 833 #define XFS_SCRUB_METAPATH_QUOTADIR (4) /* quota metadir */ 834 #define XFS_SCRUB_METAPATH_USRQUOTA (5) /* user quota */ 835 #define XFS_SCRUB_METAPATH_GRPQUOTA (6) /* group quota */ 836 #define XFS_SCRUB_METAPATH_PRJQUOTA (7) /* project quota */ 837 #define XFS_SCRUB_METAPATH_RTRMAPBT (8) /* realtime reverse mapping */ 838 #define XFS_SCRUB_METAPATH_RTREFCOUNTBT (9) /* realtime refcount */ 839 840 /* Number of metapath sm_ino values */ 841 #define XFS_SCRUB_METAPATH_NR (10) 842 843 /* 844 * ioctl limits 845 */ 846 #ifdef XATTR_LIST_MAX 847 # define XFS_XATTR_LIST_MAX XATTR_LIST_MAX 848 #else 849 # define XFS_XATTR_LIST_MAX 65536 850 #endif 851 852 /* 853 * Exchange part of file1 with part of the file that this ioctl that is being 854 * called against (which we'll call file2). Filesystems must be able to 855 * restart and complete the operation even after the system goes down. 856 */ 857 struct xfs_exchange_range { 858 __s32 file1_fd; 859 __u32 pad; /* must be zeroes */ 860 __u64 file1_offset; /* file1 offset, bytes */ 861 __u64 file2_offset; /* file2 offset, bytes */ 862 __u64 length; /* bytes to exchange */ 863 864 __u64 flags; /* see XFS_EXCHANGE_RANGE_* below */ 865 }; 866 867 /* 868 * Using the same definition of file2 as struct xfs_exchange_range, commit the 869 * contents of file1 into file2 if file2 has the same inode number, mtime, and 870 * ctime as the arguments provided to the call. The old contents of file2 will 871 * be moved to file1. 872 * 873 * Returns -EBUSY if there isn't an exact match for the file2 fields. 874 * 875 * Filesystems must be able to restart and complete the operation even after 876 * the system goes down. 877 */ 878 struct xfs_commit_range { 879 __s32 file1_fd; 880 __u32 pad; /* must be zeroes */ 881 __u64 file1_offset; /* file1 offset, bytes */ 882 __u64 file2_offset; /* file2 offset, bytes */ 883 __u64 length; /* bytes to exchange */ 884 885 __u64 flags; /* see XFS_EXCHANGE_RANGE_* below */ 886 887 /* opaque file2 metadata for freshness checks */ 888 __u64 file2_freshness[6]; 889 }; 890 891 /* 892 * Exchange file data all the way to the ends of both files, and then exchange 893 * the file sizes. This flag can be used to replace a file's contents with a 894 * different amount of data. length will be ignored. 895 */ 896 #define XFS_EXCHANGE_RANGE_TO_EOF (1ULL << 0) 897 898 /* Flush all changes in file data and file metadata to disk before returning. */ 899 #define XFS_EXCHANGE_RANGE_DSYNC (1ULL << 1) 900 901 /* Dry run; do all the parameter verification but do not change anything. */ 902 #define XFS_EXCHANGE_RANGE_DRY_RUN (1ULL << 2) 903 904 /* 905 * Exchange only the parts of the two files where the file allocation units 906 * mapped to file1's range have been written to. This can accelerate 907 * scatter-gather atomic writes with a temp file if all writes are aligned to 908 * the file allocation unit. 909 */ 910 #define XFS_EXCHANGE_RANGE_FILE1_WRITTEN (1ULL << 3) 911 912 #define XFS_EXCHANGE_RANGE_ALL_FLAGS (XFS_EXCHANGE_RANGE_TO_EOF | \ 913 XFS_EXCHANGE_RANGE_DSYNC | \ 914 XFS_EXCHANGE_RANGE_DRY_RUN | \ 915 XFS_EXCHANGE_RANGE_FILE1_WRITTEN) 916 917 /* Iterating parent pointers of files. */ 918 919 /* target was the root directory */ 920 #define XFS_GETPARENTS_OFLAG_ROOT (1U << 0) 921 922 /* Cursor is done iterating pptrs */ 923 #define XFS_GETPARENTS_OFLAG_DONE (1U << 1) 924 925 #define XFS_GETPARENTS_OFLAGS_ALL (XFS_GETPARENTS_OFLAG_ROOT | \ 926 XFS_GETPARENTS_OFLAG_DONE) 927 928 #define XFS_GETPARENTS_IFLAGS_ALL (0) 929 930 struct xfs_getparents_rec { 931 struct xfs_handle gpr_parent; /* Handle to parent */ 932 __u32 gpr_reclen; /* Length of entire record */ 933 __u32 gpr_reserved; /* zero */ 934 char gpr_name[]; /* Null-terminated filename */ 935 }; 936 937 /* Iterate through this file's directory parent pointers */ 938 struct xfs_getparents { 939 /* 940 * Structure to track progress in iterating the parent pointers. 941 * Must be initialized to zeroes before the first ioctl call, and 942 * not touched by callers after that. 943 */ 944 struct xfs_attrlist_cursor gp_cursor; 945 946 /* Input flags: XFS_GETPARENTS_IFLAG* */ 947 __u16 gp_iflags; 948 949 /* Output flags: XFS_GETPARENTS_OFLAG* */ 950 __u16 gp_oflags; 951 952 /* Size of the gp_buffer in bytes */ 953 __u32 gp_bufsize; 954 955 /* Must be set to zero */ 956 __u64 gp_reserved; 957 958 /* Pointer to a buffer in which to place xfs_getparents_rec */ 959 __u64 gp_buffer; 960 }; 961 962 static inline struct xfs_getparents_rec * 963 xfs_getparents_first_rec(struct xfs_getparents *gp) 964 { 965 return (struct xfs_getparents_rec *)(uintptr_t)gp->gp_buffer; 966 } 967 968 static inline struct xfs_getparents_rec * 969 xfs_getparents_next_rec(struct xfs_getparents *gp, 970 struct xfs_getparents_rec *gpr) 971 { 972 void *next = ((char *)gpr + gpr->gpr_reclen); 973 void *end = (void *)(uintptr_t)(gp->gp_buffer + gp->gp_bufsize); 974 975 if (next >= end) 976 return NULL; 977 978 return (struct xfs_getparents_rec *)next; 979 } 980 981 /* Iterate through this file handle's directory parent pointers. */ 982 struct xfs_getparents_by_handle { 983 /* Handle to file whose parents we want. */ 984 struct xfs_handle gph_handle; 985 986 struct xfs_getparents gph_request; 987 }; 988 989 /* 990 * Output for XFS_IOC_RTGROUP_GEOMETRY 991 */ 992 struct xfs_rtgroup_geometry { 993 __u32 rg_number; /* i/o: rtgroup number */ 994 __u32 rg_length; /* o: length in blocks */ 995 __u32 rg_sick; /* o: sick things in ag */ 996 __u32 rg_checked; /* o: checked metadata in ag */ 997 __u32 rg_flags; /* i/o: flags for this ag */ 998 __u32 rg_reserved[27]; /* o: zero */ 999 }; 1000 #define XFS_RTGROUP_GEOM_SICK_SUPER (1U << 0) /* superblock */ 1001 #define XFS_RTGROUP_GEOM_SICK_BITMAP (1U << 1) /* rtbitmap */ 1002 #define XFS_RTGROUP_GEOM_SICK_SUMMARY (1U << 2) /* rtsummary */ 1003 #define XFS_RTGROUP_GEOM_SICK_RMAPBT (1U << 3) /* reverse mappings */ 1004 #define XFS_RTGROUP_GEOM_SICK_REFCNTBT (1U << 4) /* reference counts */ 1005 1006 /* 1007 * ioctl commands that are used by Linux filesystems 1008 */ 1009 #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS 1010 #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS 1011 #define XFS_IOC_GETVERSION FS_IOC_GETVERSION 1012 1013 /* 1014 * ioctl commands that replace IRIX fcntl()'s 1015 * For 'documentation' purposed more than anything else, 1016 * the "cmd #" field reflects the IRIX fcntl number. 1017 */ 1018 /* XFS_IOC_ALLOCSP ------- deprecated 10 */ 1019 /* XFS_IOC_FREESP -------- deprecated 11 */ 1020 #define XFS_IOC_DIOINFO _IOR ('X', 30, struct dioattr) 1021 #define XFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR 1022 #define XFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR 1023 /* XFS_IOC_ALLOCSP64 ----- deprecated 36 */ 1024 /* XFS_IOC_FREESP64 ------ deprecated 37 */ 1025 #define XFS_IOC_GETBMAP _IOWR('X', 38, struct getbmap) 1026 /* XFS_IOC_FSSETDM ------- deprecated 39 */ 1027 #define XFS_IOC_RESVSP _IOW ('X', 40, struct xfs_flock64) 1028 #define XFS_IOC_UNRESVSP _IOW ('X', 41, struct xfs_flock64) 1029 #define XFS_IOC_RESVSP64 _IOW ('X', 42, struct xfs_flock64) 1030 #define XFS_IOC_UNRESVSP64 _IOW ('X', 43, struct xfs_flock64) 1031 #define XFS_IOC_GETBMAPA _IOWR('X', 44, struct getbmap) 1032 #define XFS_IOC_FSGETXATTRA _IOR ('X', 45, struct fsxattr) 1033 /* XFS_IOC_SETBIOSIZE ---- deprecated 46 */ 1034 /* XFS_IOC_GETBIOSIZE ---- deprecated 47 */ 1035 #define XFS_IOC_GETBMAPX _IOWR('X', 56, struct getbmap) 1036 #define XFS_IOC_ZERO_RANGE _IOW ('X', 57, struct xfs_flock64) 1037 #define XFS_IOC_FREE_EOFBLOCKS _IOR ('X', 58, struct xfs_fs_eofblocks) 1038 /* XFS_IOC_GETFSMAP ------ hoisted 59 */ 1039 #define XFS_IOC_SCRUB_METADATA _IOWR('X', 60, struct xfs_scrub_metadata) 1040 #define XFS_IOC_AG_GEOMETRY _IOWR('X', 61, struct xfs_ag_geometry) 1041 #define XFS_IOC_GETPARENTS _IOWR('X', 62, struct xfs_getparents) 1042 #define XFS_IOC_GETPARENTS_BY_HANDLE _IOWR('X', 63, struct xfs_getparents_by_handle) 1043 #define XFS_IOC_SCRUBV_METADATA _IOWR('X', 64, struct xfs_scrub_vec_head) 1044 #define XFS_IOC_RTGROUP_GEOMETRY _IOWR('X', 65, struct xfs_rtgroup_geometry) 1045 1046 /* 1047 * ioctl commands that replace IRIX syssgi()'s 1048 */ 1049 #define XFS_IOC_FSGEOMETRY_V1 _IOR ('X', 100, struct xfs_fsop_geom_v1) 1050 #define XFS_IOC_FSBULKSTAT _IOWR('X', 101, struct xfs_fsop_bulkreq) 1051 #define XFS_IOC_FSBULKSTAT_SINGLE _IOWR('X', 102, struct xfs_fsop_bulkreq) 1052 #define XFS_IOC_FSINUMBERS _IOWR('X', 103, struct xfs_fsop_bulkreq) 1053 #define XFS_IOC_PATH_TO_FSHANDLE _IOWR('X', 104, struct xfs_fsop_handlereq) 1054 #define XFS_IOC_PATH_TO_HANDLE _IOWR('X', 105, struct xfs_fsop_handlereq) 1055 #define XFS_IOC_FD_TO_HANDLE _IOWR('X', 106, struct xfs_fsop_handlereq) 1056 #define XFS_IOC_OPEN_BY_HANDLE _IOWR('X', 107, struct xfs_fsop_handlereq) 1057 #define XFS_IOC_READLINK_BY_HANDLE _IOWR('X', 108, struct xfs_fsop_handlereq) 1058 #define XFS_IOC_SWAPEXT _IOWR('X', 109, struct xfs_swapext) 1059 #define XFS_IOC_FSGROWFSDATA _IOW ('X', 110, struct xfs_growfs_data) 1060 #define XFS_IOC_FSGROWFSLOG _IOW ('X', 111, struct xfs_growfs_log) 1061 #define XFS_IOC_FSGROWFSRT _IOW ('X', 112, struct xfs_growfs_rt) 1062 #define XFS_IOC_FSCOUNTS _IOR ('X', 113, struct xfs_fsop_counts) 1063 #define XFS_IOC_SET_RESBLKS _IOWR('X', 114, struct xfs_fsop_resblks) 1064 #define XFS_IOC_GET_RESBLKS _IOR ('X', 115, struct xfs_fsop_resblks) 1065 #define XFS_IOC_ERROR_INJECTION _IOW ('X', 116, struct xfs_error_injection) 1066 #define XFS_IOC_ERROR_CLEARALL _IOW ('X', 117, struct xfs_error_injection) 1067 /* XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118 */ 1068 1069 #define XFS_IOC_FREEZE _IOWR('X', 119, int) /* aka FIFREEZE */ 1070 #define XFS_IOC_THAW _IOWR('X', 120, int) /* aka FITHAW */ 1071 1072 /* XFS_IOC_FSSETDM_BY_HANDLE -- deprecated 121 */ 1073 #define XFS_IOC_ATTRLIST_BY_HANDLE _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq) 1074 #define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq) 1075 #define XFS_IOC_FSGEOMETRY_V4 _IOR ('X', 124, struct xfs_fsop_geom_v4) 1076 #define XFS_IOC_GOINGDOWN _IOR ('X', 125, uint32_t) 1077 #define XFS_IOC_FSGEOMETRY _IOR ('X', 126, struct xfs_fsop_geom) 1078 #define XFS_IOC_BULKSTAT _IOR ('X', 127, struct xfs_bulkstat_req) 1079 #define XFS_IOC_INUMBERS _IOR ('X', 128, struct xfs_inumbers_req) 1080 #define XFS_IOC_EXCHANGE_RANGE _IOW ('X', 129, struct xfs_exchange_range) 1081 #define XFS_IOC_START_COMMIT _IOR ('X', 130, struct xfs_commit_range) 1082 #define XFS_IOC_COMMIT_RANGE _IOW ('X', 131, struct xfs_commit_range) 1083 /* XFS_IOC_GETFSUUID ---------- deprecated 140 */ 1084 1085 /* 1086 * Devices supported by a single XFS file system. Reported in fsmaps fmr_device 1087 * when using internal RT devices. 1088 */ 1089 enum xfs_device { 1090 XFS_DEV_DATA = 1, 1091 XFS_DEV_LOG = 2, 1092 XFS_DEV_RT = 3, 1093 }; 1094 1095 #ifndef HAVE_BBMACROS 1096 /* 1097 * Block I/O parameterization. A basic block (BB) is the lowest size of 1098 * filesystem allocation, and must equal 512. Length units given to bio 1099 * routines are in BB's. 1100 */ 1101 #define BBSHIFT 9 1102 #define BBSIZE (1<<BBSHIFT) 1103 #define BBMASK (BBSIZE-1) 1104 #define BTOBB(bytes) (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT) 1105 #define BTOBBT(bytes) ((__u64)(bytes) >> BBSHIFT) 1106 #define BBTOB(bbs) ((bbs) << BBSHIFT) 1107 #endif 1108 1109 #endif /* __XFS_FS_H__ */ 1110