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