LXR linux/fs/xfs/libxfs/xfs

   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
  19struct 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
  34struct 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
  53struct 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     /* Do not generate DMAPI read event  */
  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 * Structure for XFS_IOC_FSSETDM.
  97 * For use by backup and restore programs to set the XFS on-disk inode
  98 * fields di_dmevmask and di_dmstate.  These must be set to exactly and
  99 * only values previously obtained via xfs_bulkstat!  (Specifically the
 100 * xfs_bstat_t fields bs_dmevmask and bs_dmstate.)
 101 */
 102#ifndef HAVE_FSDMIDATA
 103struct fsdmidata {
 104        __u32           fsd_dmevmask;   /* corresponds to di_dmevmask */
 105        __u16           fsd_padding;
 106        __u16           fsd_dmstate;    /* corresponds to di_dmstate  */
 107};
 108#endif
 109
 110/*
 111 * File segment locking set data type for 64 bit access.
 112 * Also used for all the RESV/FREE interfaces.
 113 */
 114typedef struct xfs_flock64 {
 115        __s16           l_type;
 116        __s16           l_whence;
 117        __s64           l_start;
 118        __s64           l_len;          /* len == 0 means until end of file */
 119        __s32           l_sysid;
 120        __u32           l_pid;
 121        __s32           l_pad[4];       /* reserve area                     */
 122} xfs_flock64_t;
 123
 124/*
 125 * Output for XFS_IOC_FSGEOMETRY_V1
 126 */
 127typedef struct xfs_fsop_geom_v1 {
 128        __u32           blocksize;      /* filesystem (data) block size */
 129        __u32           rtextsize;      /* realtime extent size         */
 130        __u32           agblocks;       /* fsblocks in an AG            */
 131        __u32           agcount;        /* number of allocation groups  */
 132        __u32           logblocks;      /* fsblocks in the log          */
 133        __u32           sectsize;       /* (data) sector size, bytes    */
 134        __u32           inodesize;      /* inode size in bytes          */
 135        __u32           imaxpct;        /* max allowed inode space(%)   */
 136        __u64           datablocks;     /* fsblocks in data subvolume   */
 137        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 138        __u64           rtextents;      /* rt extents in realtime subvol*/
 139        __u64           logstart;       /* starting fsblock of the log  */
 140        unsigned char   uuid[16];       /* unique id of the filesystem  */
 141        __u32           sunit;          /* stripe unit, fsblocks        */
 142        __u32           swidth;         /* stripe width, fsblocks       */
 143        __s32           version;        /* structure version            */
 144        __u32           flags;          /* superblock version flags     */
 145        __u32           logsectsize;    /* log sector size, bytes       */
 146        __u32           rtsectsize;     /* realtime sector size, bytes  */
 147        __u32           dirblocksize;   /* directory block size, bytes  */
 148} xfs_fsop_geom_v1_t;
 149
 150/*
 151 * Output for XFS_IOC_FSGEOMETRY
 152 */
 153typedef struct xfs_fsop_geom {
 154        __u32           blocksize;      /* filesystem (data) block size */
 155        __u32           rtextsize;      /* realtime extent size         */
 156        __u32           agblocks;       /* fsblocks in an AG            */
 157        __u32           agcount;        /* number of allocation groups  */
 158        __u32           logblocks;      /* fsblocks in the log          */
 159        __u32           sectsize;       /* (data) sector size, bytes    */
 160        __u32           inodesize;      /* inode size in bytes          */
 161        __u32           imaxpct;        /* max allowed inode space(%)   */
 162        __u64           datablocks;     /* fsblocks in data subvolume   */
 163        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 164        __u64           rtextents;      /* rt extents in realtime subvol*/
 165        __u64           logstart;       /* starting fsblock of the log  */
 166        unsigned char   uuid[16];       /* unique id of the filesystem  */
 167        __u32           sunit;          /* stripe unit, fsblocks        */
 168        __u32           swidth;         /* stripe width, fsblocks       */
 169        __s32           version;        /* structure version            */
 170        __u32           flags;          /* superblock version flags     */
 171        __u32           logsectsize;    /* log sector size, bytes       */
 172        __u32           rtsectsize;     /* realtime sector size, bytes  */
 173        __u32           dirblocksize;   /* directory block size, bytes  */
 174        __u32           logsunit;       /* log stripe unit, bytes */
 175} xfs_fsop_geom_t;
 176
 177/* Output for XFS_FS_COUNTS */
 178typedef struct xfs_fsop_counts {
 179        __u64   freedata;       /* free data section blocks */
 180        __u64   freertx;        /* free rt extents */
 181        __u64   freeino;        /* free inodes */
 182        __u64   allocino;       /* total allocated inodes */
 183} xfs_fsop_counts_t;
 184
 185/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
 186typedef struct xfs_fsop_resblks {
 187        __u64  resblks;
 188        __u64  resblks_avail;
 189} xfs_fsop_resblks_t;
 190
 191#define XFS_FSOP_GEOM_VERSION   0
 192
 193#define XFS_FSOP_GEOM_FLAGS_ATTR        0x0001  /* attributes in use    */
 194#define XFS_FSOP_GEOM_FLAGS_NLINK       0x0002  /* 32-bit nlink values  */
 195#define XFS_FSOP_GEOM_FLAGS_QUOTA       0x0004  /* quotas enabled       */
 196#define XFS_FSOP_GEOM_FLAGS_IALIGN      0x0008  /* inode alignment      */
 197#define XFS_FSOP_GEOM_FLAGS_DALIGN      0x0010  /* large data alignment */
 198#define XFS_FSOP_GEOM_FLAGS_SHARED      0x0020  /* read-only shared     */
 199#define XFS_FSOP_GEOM_FLAGS_EXTFLG      0x0040  /* special extent flag  */
 200#define XFS_FSOP_GEOM_FLAGS_DIRV2       0x0080  /* directory version 2  */
 201#define XFS_FSOP_GEOM_FLAGS_LOGV2       0x0100  /* log format version 2 */
 202#define XFS_FSOP_GEOM_FLAGS_SECTOR      0x0200  /* sector sizes >1BB    */
 203#define XFS_FSOP_GEOM_FLAGS_ATTR2       0x0400  /* inline attributes rework */
 204#define XFS_FSOP_GEOM_FLAGS_PROJID32    0x0800  /* 32-bit project IDs   */
 205#define XFS_FSOP_GEOM_FLAGS_DIRV2CI     0x1000  /* ASCII only CI names  */
 206#define XFS_FSOP_GEOM_FLAGS_LAZYSB      0x4000  /* lazy superblock counters */
 207#define XFS_FSOP_GEOM_FLAGS_V5SB        0x8000  /* version 5 superblock */
 208#define XFS_FSOP_GEOM_FLAGS_FTYPE       0x10000 /* inode directory types */
 209#define XFS_FSOP_GEOM_FLAGS_FINOBT      0x20000 /* free inode btree */
 210#define XFS_FSOP_GEOM_FLAGS_SPINODES    0x40000 /* sparse inode chunks  */
 211#define XFS_FSOP_GEOM_FLAGS_RMAPBT      0x80000 /* reverse mapping btree */
 212#define XFS_FSOP_GEOM_FLAGS_REFLINK     0x100000 /* files can share blocks */
 213
 214/*
 215 * Minimum and maximum sizes need for growth checks.
 216 *
 217 * Block counts are in units of filesystem blocks, not basic blocks.
 218 */
 219#define XFS_MIN_AG_BLOCKS       64
 220#define XFS_MIN_LOG_BLOCKS      512ULL
 221#define XFS_MAX_LOG_BLOCKS      (1024 * 1024ULL)
 222#define XFS_MIN_LOG_BYTES       (10 * 1024 * 1024ULL)
 223
 224/*
 225 * Limits on sb_agblocks/sb_agblklog -- mkfs won't format AGs smaller than
 226 * 16MB or larger than 1TB.
 227 */
 228#define XFS_MIN_AG_BYTES        (1ULL << 24)    /* 16 MB */
 229#define XFS_MAX_AG_BYTES        (1ULL << 40)    /* 1 TB */
 230
 231/* keep the maximum size under 2^31 by a small amount */
 232#define XFS_MAX_LOG_BYTES \
 233        ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
 234
 235/* Used for sanity checks on superblock */
 236#define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
 237#define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) *     \
 238                         (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
 239
 240/*
 241 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
 242 */
 243typedef struct xfs_growfs_data {
 244        __u64           newblocks;      /* new data subvol size, fsblocks */
 245        __u32           imaxpct;        /* new inode space percentage limit */
 246} xfs_growfs_data_t;
 247
 248typedef struct xfs_growfs_log {
 249        __u32           newblocks;      /* new log size, fsblocks */
 250        __u32           isint;          /* 1 if new log is internal */
 251} xfs_growfs_log_t;
 252
 253typedef struct xfs_growfs_rt {
 254        __u64           newblocks;      /* new realtime size, fsblocks */
 255        __u32           extsize;        /* new realtime extent size, fsblocks */
 256} xfs_growfs_rt_t;
 257
 258
 259/*
 260 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
 261 */
 262typedef struct xfs_bstime {
 263        time_t          tv_sec;         /* seconds              */
 264        __s32           tv_nsec;        /* and nanoseconds      */
 265} xfs_bstime_t;
 266
 267typedef struct xfs_bstat {
 268        __u64           bs_ino;         /* inode number                 */
 269        __u16           bs_mode;        /* type and mode                */
 270        __u16           bs_nlink;       /* number of links              */
 271        __u32           bs_uid;         /* user id                      */
 272        __u32           bs_gid;         /* group id                     */
 273        __u32           bs_rdev;        /* device value                 */
 274        __s32           bs_blksize;     /* block size                   */
 275        __s64           bs_size;        /* file size                    */
 276        xfs_bstime_t    bs_atime;       /* access time                  */
 277        xfs_bstime_t    bs_mtime;       /* modify time                  */
 278        xfs_bstime_t    bs_ctime;       /* inode change time            */
 279        int64_t         bs_blocks;      /* number of blocks             */
 280        __u32           bs_xflags;      /* extended flags               */
 281        __s32           bs_extsize;     /* extent size                  */
 282        __s32           bs_extents;     /* number of extents            */
 283        __u32           bs_gen;         /* generation count             */
 284        __u16           bs_projid_lo;   /* lower part of project id     */
 285#define bs_projid       bs_projid_lo    /* (previously just bs_projid)  */
 286        __u16           bs_forkoff;     /* inode fork offset in bytes   */
 287        __u16           bs_projid_hi;   /* higher part of project id    */
 288        unsigned char   bs_pad[6];      /* pad space, unused            */
 289        __u32           bs_cowextsize;  /* cow extent size              */
 290        __u32           bs_dmevmask;    /* DMIG event mask              */
 291        __u16           bs_dmstate;     /* DMIG state info              */
 292        __u16           bs_aextents;    /* attribute number of extents  */
 293} xfs_bstat_t;
 294
 295/*
 296 * Project quota id helpers (previously projid was 16bit only
 297 * and using two 16bit values to hold new 32bit projid was choosen
 298 * to retain compatibility with "old" filesystems).
 299 */
 300static inline uint32_t
 301bstat_get_projid(struct xfs_bstat *bs)
 302{
 303        return (uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
 304}
 305
 306/*
 307 * The user-level BulkStat Request interface structure.
 308 */
 309typedef struct xfs_fsop_bulkreq {
 310        __u64           __user *lastip; /* last inode # pointer         */
 311        __s32           icount;         /* count of entries in buffer   */
 312        void            __user *ubuffer;/* user buffer for inode desc.  */
 313        __s32           __user *ocount; /* output count pointer         */
 314} xfs_fsop_bulkreq_t;
 315
 316
 317/*
 318 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
 319 */
 320typedef struct xfs_inogrp {
 321        __u64           xi_startino;    /* starting inode number        */
 322        __s32           xi_alloccount;  /* # bits set in allocmask      */
 323        __u64           xi_allocmask;   /* mask of allocated inodes     */
 324} xfs_inogrp_t;
 325
 326
 327/*
 328 * Error injection.
 329 */
 330typedef struct xfs_error_injection {
 331        __s32           fd;
 332        __s32           errtag;
 333} xfs_error_injection_t;
 334
 335
 336/*
 337 * Speculative preallocation trimming.
 338 */
 339#define XFS_EOFBLOCKS_VERSION           1
 340struct xfs_fs_eofblocks {
 341        __u32           eof_version;
 342        __u32           eof_flags;
 343        uid_t           eof_uid;
 344        gid_t           eof_gid;
 345        prid_t          eof_prid;
 346        __u32           pad32;
 347        __u64           eof_min_file_size;
 348        __u64           pad64[12];
 349};
 350
 351/* eof_flags values */
 352#define XFS_EOF_FLAGS_SYNC              (1 << 0) /* sync/wait mode scan */
 353#define XFS_EOF_FLAGS_UID               (1 << 1) /* filter by uid */
 354#define XFS_EOF_FLAGS_GID               (1 << 2) /* filter by gid */
 355#define XFS_EOF_FLAGS_PRID              (1 << 3) /* filter by project id */
 356#define XFS_EOF_FLAGS_MINFILESIZE       (1 << 4) /* filter by min file size */
 357#define XFS_EOF_FLAGS_UNION             (1 << 5) /* union filter algorithm;
 358                                                  * kernel only, not included in
 359                                                  * valid mask */
 360#define XFS_EOF_FLAGS_VALID     \
 361        (XFS_EOF_FLAGS_SYNC |   \
 362         XFS_EOF_FLAGS_UID |    \
 363         XFS_EOF_FLAGS_GID |    \
 364         XFS_EOF_FLAGS_PRID |   \
 365         XFS_EOF_FLAGS_MINFILESIZE)
 366
 367
 368/*
 369 * The user-level Handle Request interface structure.
 370 */
 371typedef struct xfs_fsop_handlereq {
 372        __u32           fd;             /* fd for FD_TO_HANDLE          */
 373        void            __user *path;   /* user pathname                */
 374        __u32           oflags;         /* open flags                   */
 375        void            __user *ihandle;/* user supplied handle         */
 376        __u32           ihandlen;       /* user supplied length         */
 377        void            __user *ohandle;/* user buffer for handle       */
 378        __u32           __user *ohandlen;/* user buffer length          */
 379} xfs_fsop_handlereq_t;
 380
 381/*
 382 * Compound structures for passing args through Handle Request interfaces
 383 * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
 384 * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
 385 *           XFS_IOC_ATTRMULTI_BY_HANDLE
 386 */
 387
 388typedef struct xfs_fsop_setdm_handlereq {
 389        struct xfs_fsop_handlereq       hreq;   /* handle information   */
 390        struct fsdmidata                __user *data;   /* DMAPI data   */
 391} xfs_fsop_setdm_handlereq_t;
 392
 393typedef struct xfs_attrlist_cursor {
 394        __u32           opaque[4];
 395} xfs_attrlist_cursor_t;
 396
 397typedef struct xfs_fsop_attrlist_handlereq {
 398        struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 399        struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
 400        __u32                           flags;  /* which namespace to use */
 401        __u32                           buflen; /* length of buffer supplied */
 402        void                            __user *buffer; /* returned names */
 403} xfs_fsop_attrlist_handlereq_t;
 404
 405typedef struct xfs_attr_multiop {
 406        __u32           am_opcode;
 407#define ATTR_OP_GET     1       /* return the indicated attr's value */
 408#define ATTR_OP_SET     2       /* set/create the indicated attr/value pair */
 409#define ATTR_OP_REMOVE  3       /* remove the indicated attr */
 410        __s32           am_error;
 411        void            __user *am_attrname;
 412        void            __user *am_attrvalue;
 413        __u32           am_length;
 414        __u32           am_flags;
 415} xfs_attr_multiop_t;
 416
 417typedef struct xfs_fsop_attrmulti_handlereq {
 418        struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 419        __u32                           opcount;/* count of following multiop */
 420        struct xfs_attr_multiop         __user *ops; /* attr_multi data */
 421} xfs_fsop_attrmulti_handlereq_t;
 422
 423/*
 424 * per machine unique filesystem identifier types.
 425 */
 426typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
 427
 428typedef struct xfs_fid {
 429        __u16   fid_len;                /* length of remainder  */
 430        __u16   fid_pad;
 431        __u32   fid_gen;                /* generation number    */
 432        __u64   fid_ino;                /* 64 bits inode number */
 433} xfs_fid_t;
 434
 435typedef struct xfs_handle {
 436        union {
 437                __s64       align;      /* force alignment of ha_fid     */
 438                xfs_fsid_t  _ha_fsid;   /* unique file system identifier */
 439        } ha_u;
 440        xfs_fid_t       ha_fid;         /* file system specific file ID  */
 441} xfs_handle_t;
 442#define ha_fsid ha_u._ha_fsid
 443
 444/*
 445 * Structure passed to XFS_IOC_SWAPEXT
 446 */
 447typedef struct xfs_swapext
 448{
 449        int64_t         sx_version;     /* version */
 450#define XFS_SX_VERSION          0
 451        int64_t         sx_fdtarget;    /* fd of target file */
 452        int64_t         sx_fdtmp;       /* fd of tmp file */
 453        xfs_off_t       sx_offset;      /* offset into file */
 454        xfs_off_t       sx_length;      /* leng from offset */
 455        char            sx_pad[16];     /* pad space, unused */
 456        xfs_bstat_t     sx_stat;        /* stat of target b4 copy */
 457} xfs_swapext_t;
 458
 459/*
 460 * Flags for going down operation
 461 */
 462#define XFS_FSOP_GOING_FLAGS_DEFAULT            0x0     /* going down */
 463#define XFS_FSOP_GOING_FLAGS_LOGFLUSH           0x1     /* flush log but not data */
 464#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH         0x2     /* don't flush log nor data */
 465
 466/* metadata scrubbing */
 467struct xfs_scrub_metadata {
 468        __u32 sm_type;          /* What to check? */
 469        __u32 sm_flags;         /* flags; see below. */
 470        __u64 sm_ino;           /* inode number. */
 471        __u32 sm_gen;           /* inode generation. */
 472        __u32 sm_agno;          /* ag number. */
 473        __u64 sm_reserved[5];   /* pad to 64 bytes */
 474};
 475
 476/*
 477 * Metadata types and flags for scrub operation.
 478 */
 479
 480/* Scrub subcommands. */
 481#define XFS_SCRUB_TYPE_PROBE    0       /* presence test ioctl */
 482#define XFS_SCRUB_TYPE_SB       1       /* superblock */
 483#define XFS_SCRUB_TYPE_AGF      2       /* AG free header */
 484#define XFS_SCRUB_TYPE_AGFL     3       /* AG free list */
 485#define XFS_SCRUB_TYPE_AGI      4       /* AG inode header */
 486#define XFS_SCRUB_TYPE_BNOBT    5       /* freesp by block btree */
 487#define XFS_SCRUB_TYPE_CNTBT    6       /* freesp by length btree */
 488#define XFS_SCRUB_TYPE_INOBT    7       /* inode btree */
 489#define XFS_SCRUB_TYPE_FINOBT   8       /* free inode btree */
 490#define XFS_SCRUB_TYPE_RMAPBT   9       /* reverse mapping btree */
 491#define XFS_SCRUB_TYPE_REFCNTBT 10      /* reference count btree */
 492#define XFS_SCRUB_TYPE_INODE    11      /* inode record */
 493#define XFS_SCRUB_TYPE_BMBTD    12      /* data fork block mapping */
 494#define XFS_SCRUB_TYPE_BMBTA    13      /* attr fork block mapping */
 495#define XFS_SCRUB_TYPE_BMBTC    14      /* CoW fork block mapping */
 496#define XFS_SCRUB_TYPE_DIR      15      /* directory */
 497#define XFS_SCRUB_TYPE_XATTR    16      /* extended attribute */
 498#define XFS_SCRUB_TYPE_SYMLINK  17      /* symbolic link */
 499#define XFS_SCRUB_TYPE_PARENT   18      /* parent pointers */
 500#define XFS_SCRUB_TYPE_RTBITMAP 19      /* realtime bitmap */
 501#define XFS_SCRUB_TYPE_RTSUM    20      /* realtime summary */
 502#define XFS_SCRUB_TYPE_UQUOTA   21      /* user quotas */
 503#define XFS_SCRUB_TYPE_GQUOTA   22      /* group quotas */
 504#define XFS_SCRUB_TYPE_PQUOTA   23      /* project quotas */
 505
 506/* Number of scrub subcommands. */
 507#define XFS_SCRUB_TYPE_NR       24
 508
 509/* i: Repair this metadata. */
 510#define XFS_SCRUB_IFLAG_REPAIR          (1 << 0)
 511
 512/* o: Metadata object needs repair. */
 513#define XFS_SCRUB_OFLAG_CORRUPT         (1 << 1)
 514
 515/*
 516 * o: Metadata object could be optimized.  It's not corrupt, but
 517 *    we could improve on it somehow.
 518 */
 519#define XFS_SCRUB_OFLAG_PREEN           (1 << 2)
 520
 521/* o: Cross-referencing failed. */
 522#define XFS_SCRUB_OFLAG_XFAIL           (1 << 3)
 523
 524/* o: Metadata object disagrees with cross-referenced metadata. */
 525#define XFS_SCRUB_OFLAG_XCORRUPT        (1 << 4)
 526
 527/* o: Scan was not complete. */
 528#define XFS_SCRUB_OFLAG_INCOMPLETE      (1 << 5)
 529
 530/* o: Metadata object looked funny but isn't corrupt. */
 531#define XFS_SCRUB_OFLAG_WARNING         (1 << 6)
 532
 533/*
 534 * o: IFLAG_REPAIR was set but metadata object did not need fixing or
 535 *    optimization and has therefore not been altered.
 536 */
 537#define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1 << 7)
 538
 539#define XFS_SCRUB_FLAGS_IN      (XFS_SCRUB_IFLAG_REPAIR)
 540#define XFS_SCRUB_FLAGS_OUT     (XFS_SCRUB_OFLAG_CORRUPT | \
 541                                 XFS_SCRUB_OFLAG_PREEN | \
 542                                 XFS_SCRUB_OFLAG_XFAIL | \
 543                                 XFS_SCRUB_OFLAG_XCORRUPT | \
 544                                 XFS_SCRUB_OFLAG_INCOMPLETE | \
 545                                 XFS_SCRUB_OFLAG_WARNING | \
 546                                 XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED)
 547#define XFS_SCRUB_FLAGS_ALL     (XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
 548
 549/*
 550 * ioctl limits
 551 */
 552#ifdef XATTR_LIST_MAX
 553#  define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
 554#else
 555#  define XFS_XATTR_LIST_MAX 65536
 556#endif
 557
 558
 559/*
 560 * ioctl commands that are used by Linux filesystems
 561 */
 562#define XFS_IOC_GETXFLAGS       FS_IOC_GETFLAGS
 563#define XFS_IOC_SETXFLAGS       FS_IOC_SETFLAGS
 564#define XFS_IOC_GETVERSION      FS_IOC_GETVERSION
 565
 566/*
 567 * ioctl commands that replace IRIX fcntl()'s
 568 * For 'documentation' purposed more than anything else,
 569 * the "cmd #" field reflects the IRIX fcntl number.
 570 */
 571#define XFS_IOC_ALLOCSP         _IOW ('X', 10, struct xfs_flock64)
 572#define XFS_IOC_FREESP          _IOW ('X', 11, struct xfs_flock64)
 573#define XFS_IOC_DIOINFO         _IOR ('X', 30, struct dioattr)
 574#define XFS_IOC_FSGETXATTR      FS_IOC_FSGETXATTR
 575#define XFS_IOC_FSSETXATTR      FS_IOC_FSSETXATTR
 576#define XFS_IOC_ALLOCSP64       _IOW ('X', 36, struct xfs_flock64)
 577#define XFS_IOC_FREESP64        _IOW ('X', 37, struct xfs_flock64)
 578#define XFS_IOC_GETBMAP         _IOWR('X', 38, struct getbmap)
 579#define XFS_IOC_FSSETDM         _IOW ('X', 39, struct fsdmidata)
 580#define XFS_IOC_RESVSP          _IOW ('X', 40, struct xfs_flock64)
 581#define XFS_IOC_UNRESVSP        _IOW ('X', 41, struct xfs_flock64)
 582#define XFS_IOC_RESVSP64        _IOW ('X', 42, struct xfs_flock64)
 583#define XFS_IOC_UNRESVSP64      _IOW ('X', 43, struct xfs_flock64)
 584#define XFS_IOC_GETBMAPA        _IOWR('X', 44, struct getbmap)
 585#define XFS_IOC_FSGETXATTRA     _IOR ('X', 45, struct fsxattr)
 586/*      XFS_IOC_SETBIOSIZE ---- deprecated 46      */
 587/*      XFS_IOC_GETBIOSIZE ---- deprecated 47      */
 588#define XFS_IOC_GETBMAPX        _IOWR('X', 56, struct getbmap)
 589#define XFS_IOC_ZERO_RANGE      _IOW ('X', 57, struct xfs_flock64)
 590#define XFS_IOC_FREE_EOFBLOCKS  _IOR ('X', 58, struct xfs_fs_eofblocks)
 591/*      XFS_IOC_GETFSMAP ------ hoisted 59         */
 592#define XFS_IOC_SCRUB_METADATA  _IOWR('X', 60, struct xfs_scrub_metadata)
 593
 594/*
 595 * ioctl commands that replace IRIX syssgi()'s
 596 */
 597#define XFS_IOC_FSGEOMETRY_V1        _IOR ('X', 100, struct xfs_fsop_geom_v1)
 598#define XFS_IOC_FSBULKSTAT           _IOWR('X', 101, struct xfs_fsop_bulkreq)
 599#define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
 600#define XFS_IOC_FSINUMBERS           _IOWR('X', 103, struct xfs_fsop_bulkreq)
 601#define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
 602#define XFS_IOC_PATH_TO_HANDLE       _IOWR('X', 105, struct xfs_fsop_handlereq)
 603#define XFS_IOC_FD_TO_HANDLE         _IOWR('X', 106, struct xfs_fsop_handlereq)
 604#define XFS_IOC_OPEN_BY_HANDLE       _IOWR('X', 107, struct xfs_fsop_handlereq)
 605#define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
 606#define XFS_IOC_SWAPEXT              _IOWR('X', 109, struct xfs_swapext)
 607#define XFS_IOC_FSGROWFSDATA         _IOW ('X', 110, struct xfs_growfs_data)
 608#define XFS_IOC_FSGROWFSLOG          _IOW ('X', 111, struct xfs_growfs_log)
 609#define XFS_IOC_FSGROWFSRT           _IOW ('X', 112, struct xfs_growfs_rt)
 610#define XFS_IOC_FSCOUNTS             _IOR ('X', 113, struct xfs_fsop_counts)
 611#define XFS_IOC_SET_RESBLKS          _IOWR('X', 114, struct xfs_fsop_resblks)
 612#define XFS_IOC_GET_RESBLKS          _IOR ('X', 115, struct xfs_fsop_resblks)
 613#define XFS_IOC_ERROR_INJECTION      _IOW ('X', 116, struct xfs_error_injection)
 614#define XFS_IOC_ERROR_CLEARALL       _IOW ('X', 117, struct xfs_error_injection)
 615/*      XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118      */
 616
 617#define XFS_IOC_FREEZE               _IOWR('X', 119, int)       /* aka FIFREEZE */
 618#define XFS_IOC_THAW                 _IOWR('X', 120, int)       /* aka FITHAW */
 619
 620#define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
 621#define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
 622#define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
 623#define XFS_IOC_FSGEOMETRY           _IOR ('X', 124, struct xfs_fsop_geom)
 624#define XFS_IOC_GOINGDOWN            _IOR ('X', 125, uint32_t)
 625/*      XFS_IOC_GETFSUUID ---------- deprecated 140      */
 626
 627
 628#ifndef HAVE_BBMACROS
 629/*
 630 * Block I/O parameterization.  A basic block (BB) is the lowest size of
 631 * filesystem allocation, and must equal 512.  Length units given to bio
 632 * routines are in BB's.
 633 */
 634#define BBSHIFT         9
 635#define BBSIZE          (1<<BBSHIFT)
 636#define BBMASK          (BBSIZE-1)
 637#define BTOBB(bytes)    (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
 638#define BTOBBT(bytes)   ((__u64)(bytes) >> BBSHIFT)
 639#define BBTOB(bbs)      ((bbs) << BBSHIFT)
 640#endif
 641
 642#endif  /* __XFS_FS_H__ */
 643