LXR linux/fs/xfs/libxfs/xfs

   1/*
   2 * Copyright (c) 1995-2005 Silicon Graphics, Inc.
   3 * All Rights Reserved.
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU Lesser General Public License
   7 * as published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it would be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU Lesser General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU Lesser General Public License
  15 * along with this program; if not, write the Free Software Foundation,
  16 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17 */
  18#ifndef __XFS_FS_H__
  19#define __XFS_FS_H__
  20
  21/*
  22 * SGI's XFS filesystem's major stuff (constants, structures)
  23 */
  24
  25/*
  26 * Direct I/O attribute record used with XFS_IOC_DIOINFO
  27 * d_miniosz is the min xfer size, xfer size multiple and file seek offset
  28 * alignment.
  29 */
  30#ifndef HAVE_DIOATTR
  31struct dioattr {
  32        __u32           d_mem;          /* data buffer memory alignment */
  33        __u32           d_miniosz;      /* min xfer size                */
  34        __u32           d_maxiosz;      /* max xfer size                */
  35};
  36#endif
  37
  38/*
  39 * Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
  40 */
  41#ifndef HAVE_FSXATTR
  42struct fsxattr {
  43        __u32           fsx_xflags;     /* xflags field value (get/set) */
  44        __u32           fsx_extsize;    /* extsize field value (get/set)*/
  45        __u32           fsx_nextents;   /* nextents field value (get)   */
  46        __u32           fsx_projid;     /* project identifier (get/set) */
  47        unsigned char   fsx_pad[12];
  48};
  49#endif
  50
  51/*
  52 * Flags for the bs_xflags/fsx_xflags field
  53 * There should be a one-to-one correspondence between these flags and the
  54 * XFS_DIFLAG_s.
  55 */
  56#define XFS_XFLAG_REALTIME      0x00000001      /* data in realtime volume */
  57#define XFS_XFLAG_PREALLOC      0x00000002      /* preallocated file extents */
  58#define XFS_XFLAG_IMMUTABLE     0x00000008      /* file cannot be modified */
  59#define XFS_XFLAG_APPEND        0x00000010      /* all writes append */
  60#define XFS_XFLAG_SYNC          0x00000020      /* all writes synchronous */
  61#define XFS_XFLAG_NOATIME       0x00000040      /* do not update access time */
  62#define XFS_XFLAG_NODUMP        0x00000080      /* do not include in backups */
  63#define XFS_XFLAG_RTINHERIT     0x00000100      /* create with rt bit set */
  64#define XFS_XFLAG_PROJINHERIT   0x00000200      /* create with parents projid */
  65#define XFS_XFLAG_NOSYMLINKS    0x00000400      /* disallow symlink creation */
  66#define XFS_XFLAG_EXTSIZE       0x00000800      /* extent size allocator hint */
  67#define XFS_XFLAG_EXTSZINHERIT  0x00001000      /* inherit inode extent size */
  68#define XFS_XFLAG_NODEFRAG      0x00002000      /* do not defragment */
  69#define XFS_XFLAG_FILESTREAM    0x00004000      /* use filestream allocator */
  70#define XFS_XFLAG_DAX           0x00008000      /* use DAX for IO */
  71#define XFS_XFLAG_HASATTR       0x80000000      /* no DIFLAG for this   */
  72
  73/*
  74 * Structure for XFS_IOC_GETBMAP.
  75 * On input, fill in bmv_offset and bmv_length of the first structure
  76 * to indicate the area of interest in the file, and bmv_entries with
  77 * the number of array elements given back.  The first structure is
  78 * updated on return to give the offset and length for the next call.
  79 */
  80#ifndef HAVE_GETBMAP
  81struct getbmap {
  82        __s64           bmv_offset;     /* file offset of segment in blocks */
  83        __s64           bmv_block;      /* starting block (64-bit daddr_t)  */
  84        __s64           bmv_length;     /* length of segment, blocks        */
  85        __s32           bmv_count;      /* # of entries in array incl. 1st  */
  86        __s32           bmv_entries;    /* # of entries filled in (output)  */
  87};
  88#endif
  89
  90/*
  91 *      Structure for XFS_IOC_GETBMAPX.  Fields bmv_offset through bmv_entries
  92 *      are used exactly as in the getbmap structure.  The getbmapx structure
  93 *      has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
  94 *      is only used for the first structure.  It contains input flags
  95 *      specifying XFS_IOC_GETBMAPX actions.  The bmv_oflags field is filled
  96 *      in by the XFS_IOC_GETBMAPX command for each returned structure after
  97 *      the first.
  98 */
  99#ifndef HAVE_GETBMAPX
 100struct getbmapx {
 101        __s64           bmv_offset;     /* file offset of segment in blocks */
 102        __s64           bmv_block;      /* starting block (64-bit daddr_t)  */
 103        __s64           bmv_length;     /* length of segment, blocks        */
 104        __s32           bmv_count;      /* # of entries in array incl. 1st  */
 105        __s32           bmv_entries;    /* # of entries filled in (output). */
 106        __s32           bmv_iflags;     /* input flags (1st structure)      */
 107        __s32           bmv_oflags;     /* output flags (after 1st structure)*/
 108        __s32           bmv_unused1;    /* future use                       */
 109        __s32           bmv_unused2;    /* future use                       */
 110};
 111#endif
 112
 113/*      bmv_iflags values - set by XFS_IOC_GETBMAPX caller.     */
 114#define BMV_IF_ATTRFORK         0x1     /* return attr fork rather than data */
 115#define BMV_IF_NO_DMAPI_READ    0x2     /* Do not generate DMAPI read event  */
 116#define BMV_IF_PREALLOC         0x4     /* rtn status BMV_OF_PREALLOC if req */
 117#define BMV_IF_DELALLOC         0x8     /* rtn status BMV_OF_DELALLOC if req */
 118#define BMV_IF_NO_HOLES         0x10    /* Do not return holes */
 119#define BMV_IF_VALID    \
 120        (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|  \
 121         BMV_IF_DELALLOC|BMV_IF_NO_HOLES)
 122
 123/*      bmv_oflags values - returned for each non-header segment */
 124#define BMV_OF_PREALLOC         0x1     /* segment = unwritten pre-allocation */
 125#define BMV_OF_DELALLOC         0x2     /* segment = delayed allocation */
 126#define BMV_OF_LAST             0x4     /* segment is the last in the file */
 127
 128/*
 129 * Structure for XFS_IOC_FSSETDM.
 130 * For use by backup and restore programs to set the XFS on-disk inode
 131 * fields di_dmevmask and di_dmstate.  These must be set to exactly and
 132 * only values previously obtained via xfs_bulkstat!  (Specifically the
 133 * xfs_bstat_t fields bs_dmevmask and bs_dmstate.)
 134 */
 135#ifndef HAVE_FSDMIDATA
 136struct fsdmidata {
 137        __u32           fsd_dmevmask;   /* corresponds to di_dmevmask */
 138        __u16           fsd_padding;
 139        __u16           fsd_dmstate;    /* corresponds to di_dmstate  */
 140};
 141#endif
 142
 143/*
 144 * File segment locking set data type for 64 bit access.
 145 * Also used for all the RESV/FREE interfaces.
 146 */
 147typedef struct xfs_flock64 {
 148        __s16           l_type;
 149        __s16           l_whence;
 150        __s64           l_start;
 151        __s64           l_len;          /* len == 0 means until end of file */
 152        __s32           l_sysid;
 153        __u32           l_pid;
 154        __s32           l_pad[4];       /* reserve area                     */
 155} xfs_flock64_t;
 156
 157/*
 158 * Output for XFS_IOC_FSGEOMETRY_V1
 159 */
 160typedef struct xfs_fsop_geom_v1 {
 161        __u32           blocksize;      /* filesystem (data) block size */
 162        __u32           rtextsize;      /* realtime extent size         */
 163        __u32           agblocks;       /* fsblocks in an AG            */
 164        __u32           agcount;        /* number of allocation groups  */
 165        __u32           logblocks;      /* fsblocks in the log          */
 166        __u32           sectsize;       /* (data) sector size, bytes    */
 167        __u32           inodesize;      /* inode size in bytes          */
 168        __u32           imaxpct;        /* max allowed inode space(%)   */
 169        __u64           datablocks;     /* fsblocks in data subvolume   */
 170        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 171        __u64           rtextents;      /* rt extents in realtime subvol*/
 172        __u64           logstart;       /* starting fsblock of the log  */
 173        unsigned char   uuid[16];       /* unique id of the filesystem  */
 174        __u32           sunit;          /* stripe unit, fsblocks        */
 175        __u32           swidth;         /* stripe width, fsblocks       */
 176        __s32           version;        /* structure version            */
 177        __u32           flags;          /* superblock version flags     */
 178        __u32           logsectsize;    /* log sector size, bytes       */
 179        __u32           rtsectsize;     /* realtime sector size, bytes  */
 180        __u32           dirblocksize;   /* directory block size, bytes  */
 181} xfs_fsop_geom_v1_t;
 182
 183/*
 184 * Output for XFS_IOC_FSGEOMETRY
 185 */
 186typedef struct xfs_fsop_geom {
 187        __u32           blocksize;      /* filesystem (data) block size */
 188        __u32           rtextsize;      /* realtime extent size         */
 189        __u32           agblocks;       /* fsblocks in an AG            */
 190        __u32           agcount;        /* number of allocation groups  */
 191        __u32           logblocks;      /* fsblocks in the log          */
 192        __u32           sectsize;       /* (data) sector size, bytes    */
 193        __u32           inodesize;      /* inode size in bytes          */
 194        __u32           imaxpct;        /* max allowed inode space(%)   */
 195        __u64           datablocks;     /* fsblocks in data subvolume   */
 196        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 197        __u64           rtextents;      /* rt extents in realtime subvol*/
 198        __u64           logstart;       /* starting fsblock of the log  */
 199        unsigned char   uuid[16];       /* unique id of the filesystem  */
 200        __u32           sunit;          /* stripe unit, fsblocks        */
 201        __u32           swidth;         /* stripe width, fsblocks       */
 202        __s32           version;        /* structure version            */
 203        __u32           flags;          /* superblock version flags     */
 204        __u32           logsectsize;    /* log sector size, bytes       */
 205        __u32           rtsectsize;     /* realtime sector size, bytes  */
 206        __u32           dirblocksize;   /* directory block size, bytes  */
 207        __u32           logsunit;       /* log stripe unit, bytes */
 208} xfs_fsop_geom_t;
 209
 210/* Output for XFS_FS_COUNTS */
 211typedef struct xfs_fsop_counts {
 212        __u64   freedata;       /* free data section blocks */
 213        __u64   freertx;        /* free rt extents */
 214        __u64   freeino;        /* free inodes */
 215        __u64   allocino;       /* total allocated inodes */
 216} xfs_fsop_counts_t;
 217
 218/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
 219typedef struct xfs_fsop_resblks {
 220        __u64  resblks;
 221        __u64  resblks_avail;
 222} xfs_fsop_resblks_t;
 223
 224#define XFS_FSOP_GEOM_VERSION   0
 225
 226#define XFS_FSOP_GEOM_FLAGS_ATTR        0x0001  /* attributes in use    */
 227#define XFS_FSOP_GEOM_FLAGS_NLINK       0x0002  /* 32-bit nlink values  */
 228#define XFS_FSOP_GEOM_FLAGS_QUOTA       0x0004  /* quotas enabled       */
 229#define XFS_FSOP_GEOM_FLAGS_IALIGN      0x0008  /* inode alignment      */
 230#define XFS_FSOP_GEOM_FLAGS_DALIGN      0x0010  /* large data alignment */
 231#define XFS_FSOP_GEOM_FLAGS_SHARED      0x0020  /* read-only shared     */
 232#define XFS_FSOP_GEOM_FLAGS_EXTFLG      0x0040  /* special extent flag  */
 233#define XFS_FSOP_GEOM_FLAGS_DIRV2       0x0080  /* directory version 2  */
 234#define XFS_FSOP_GEOM_FLAGS_LOGV2       0x0100  /* log format version 2 */
 235#define XFS_FSOP_GEOM_FLAGS_SECTOR      0x0200  /* sector sizes >1BB    */
 236#define XFS_FSOP_GEOM_FLAGS_ATTR2       0x0400  /* inline attributes rework */
 237#define XFS_FSOP_GEOM_FLAGS_PROJID32    0x0800  /* 32-bit project IDs   */
 238#define XFS_FSOP_GEOM_FLAGS_DIRV2CI     0x1000  /* ASCII only CI names  */
 239#define XFS_FSOP_GEOM_FLAGS_LAZYSB      0x4000  /* lazy superblock counters */
 240#define XFS_FSOP_GEOM_FLAGS_V5SB        0x8000  /* version 5 superblock */
 241#define XFS_FSOP_GEOM_FLAGS_FTYPE       0x10000 /* inode directory types */
 242#define XFS_FSOP_GEOM_FLAGS_FINOBT      0x20000 /* free inode btree */
 243#define XFS_FSOP_GEOM_FLAGS_SPINODES    0x40000 /* sparse inode chunks  */
 244
 245/*
 246 * Minimum and maximum sizes need for growth checks.
 247 *
 248 * Block counts are in units of filesystem blocks, not basic blocks.
 249 */
 250#define XFS_MIN_AG_BLOCKS       64
 251#define XFS_MIN_LOG_BLOCKS      512ULL
 252#define XFS_MAX_LOG_BLOCKS      (1024 * 1024ULL)
 253#define XFS_MIN_LOG_BYTES       (10 * 1024 * 1024ULL)
 254
 255/* keep the maximum size under 2^31 by a small amount */
 256#define XFS_MAX_LOG_BYTES \
 257        ((2 * 1024 * 1024 * 1024ULL) - XFS_MIN_LOG_BYTES)
 258
 259/* Used for sanity checks on superblock */
 260#define XFS_MAX_DBLOCKS(s) ((xfs_rfsblock_t)(s)->sb_agcount * (s)->sb_agblocks)
 261#define XFS_MIN_DBLOCKS(s) ((xfs_rfsblock_t)((s)->sb_agcount - 1) *     \
 262                         (s)->sb_agblocks + XFS_MIN_AG_BLOCKS)
 263
 264/*
 265 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
 266 */
 267typedef struct xfs_growfs_data {
 268        __u64           newblocks;      /* new data subvol size, fsblocks */
 269        __u32           imaxpct;        /* new inode space percentage limit */
 270} xfs_growfs_data_t;
 271
 272typedef struct xfs_growfs_log {
 273        __u32           newblocks;      /* new log size, fsblocks */
 274        __u32           isint;          /* 1 if new log is internal */
 275} xfs_growfs_log_t;
 276
 277typedef struct xfs_growfs_rt {
 278        __u64           newblocks;      /* new realtime size, fsblocks */
 279        __u32           extsize;        /* new realtime extent size, fsblocks */
 280} xfs_growfs_rt_t;
 281
 282
 283/*
 284 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
 285 */
 286typedef struct xfs_bstime {
 287        time_t          tv_sec;         /* seconds              */
 288        __s32           tv_nsec;        /* and nanoseconds      */
 289} xfs_bstime_t;
 290
 291typedef struct xfs_bstat {
 292        __u64           bs_ino;         /* inode number                 */
 293        __u16           bs_mode;        /* type and mode                */
 294        __u16           bs_nlink;       /* number of links              */
 295        __u32           bs_uid;         /* user id                      */
 296        __u32           bs_gid;         /* group id                     */
 297        __u32           bs_rdev;        /* device value                 */
 298        __s32           bs_blksize;     /* block size                   */
 299        __s64           bs_size;        /* file size                    */
 300        xfs_bstime_t    bs_atime;       /* access time                  */
 301        xfs_bstime_t    bs_mtime;       /* modify time                  */
 302        xfs_bstime_t    bs_ctime;       /* inode change time            */
 303        int64_t         bs_blocks;      /* number of blocks             */
 304        __u32           bs_xflags;      /* extended flags               */
 305        __s32           bs_extsize;     /* extent size                  */
 306        __s32           bs_extents;     /* number of extents            */
 307        __u32           bs_gen;         /* generation count             */
 308        __u16           bs_projid_lo;   /* lower part of project id     */
 309#define bs_projid       bs_projid_lo    /* (previously just bs_projid)  */
 310        __u16           bs_forkoff;     /* inode fork offset in bytes   */
 311        __u16           bs_projid_hi;   /* higher part of project id    */
 312        unsigned char   bs_pad[10];     /* pad space, unused            */
 313        __u32           bs_dmevmask;    /* DMIG event mask              */
 314        __u16           bs_dmstate;     /* DMIG state info              */
 315        __u16           bs_aextents;    /* attribute number of extents  */
 316} xfs_bstat_t;
 317
 318/*
 319 * Project quota id helpers (previously projid was 16bit only
 320 * and using two 16bit values to hold new 32bit projid was choosen
 321 * to retain compatibility with "old" filesystems).
 322 */
 323static inline __uint32_t
 324bstat_get_projid(struct xfs_bstat *bs)
 325{
 326        return (__uint32_t)bs->bs_projid_hi << 16 | bs->bs_projid_lo;
 327}
 328
 329/*
 330 * The user-level BulkStat Request interface structure.
 331 */
 332typedef struct xfs_fsop_bulkreq {
 333        __u64           __user *lastip; /* last inode # pointer         */
 334        __s32           icount;         /* count of entries in buffer   */
 335        void            __user *ubuffer;/* user buffer for inode desc.  */
 336        __s32           __user *ocount; /* output count pointer         */
 337} xfs_fsop_bulkreq_t;
 338
 339
 340/*
 341 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
 342 */
 343typedef struct xfs_inogrp {
 344        __u64           xi_startino;    /* starting inode number        */
 345        __s32           xi_alloccount;  /* # bits set in allocmask      */
 346        __u64           xi_allocmask;   /* mask of allocated inodes     */
 347} xfs_inogrp_t;
 348
 349
 350/*
 351 * Error injection.
 352 */
 353typedef struct xfs_error_injection {
 354        __s32           fd;
 355        __s32           errtag;
 356} xfs_error_injection_t;
 357
 358
 359/*
 360 * Speculative preallocation trimming.
 361 */
 362#define XFS_EOFBLOCKS_VERSION           1
 363struct xfs_fs_eofblocks {
 364        __u32           eof_version;
 365        __u32           eof_flags;
 366        uid_t           eof_uid;
 367        gid_t           eof_gid;
 368        prid_t          eof_prid;
 369        __u32           pad32;
 370        __u64           eof_min_file_size;
 371        __u64           pad64[12];
 372};
 373
 374/* eof_flags values */
 375#define XFS_EOF_FLAGS_SYNC              (1 << 0) /* sync/wait mode scan */
 376#define XFS_EOF_FLAGS_UID               (1 << 1) /* filter by uid */
 377#define XFS_EOF_FLAGS_GID               (1 << 2) /* filter by gid */
 378#define XFS_EOF_FLAGS_PRID              (1 << 3) /* filter by project id */
 379#define XFS_EOF_FLAGS_MINFILESIZE       (1 << 4) /* filter by min file size */
 380#define XFS_EOF_FLAGS_UNION             (1 << 5) /* union filter algorithm;
 381                                                  * kernel only, not included in
 382                                                  * valid mask */
 383#define XFS_EOF_FLAGS_VALID     \
 384        (XFS_EOF_FLAGS_SYNC |   \
 385         XFS_EOF_FLAGS_UID |    \
 386         XFS_EOF_FLAGS_GID |    \
 387         XFS_EOF_FLAGS_PRID |   \
 388         XFS_EOF_FLAGS_MINFILESIZE)
 389
 390
 391/*
 392 * The user-level Handle Request interface structure.
 393 */
 394typedef struct xfs_fsop_handlereq {
 395        __u32           fd;             /* fd for FD_TO_HANDLE          */
 396        void            __user *path;   /* user pathname                */
 397        __u32           oflags;         /* open flags                   */
 398        void            __user *ihandle;/* user supplied handle         */
 399        __u32           ihandlen;       /* user supplied length         */
 400        void            __user *ohandle;/* user buffer for handle       */
 401        __u32           __user *ohandlen;/* user buffer length          */
 402} xfs_fsop_handlereq_t;
 403
 404/*
 405 * Compound structures for passing args through Handle Request interfaces
 406 * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
 407 * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
 408 *           XFS_IOC_ATTRMULTI_BY_HANDLE
 409 */
 410
 411typedef struct xfs_fsop_setdm_handlereq {
 412        struct xfs_fsop_handlereq       hreq;   /* handle information   */
 413        struct fsdmidata                __user *data;   /* DMAPI data   */
 414} xfs_fsop_setdm_handlereq_t;
 415
 416typedef struct xfs_attrlist_cursor {
 417        __u32           opaque[4];
 418} xfs_attrlist_cursor_t;
 419
 420typedef struct xfs_fsop_attrlist_handlereq {
 421        struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 422        struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
 423        __u32                           flags;  /* which namespace to use */
 424        __u32                           buflen; /* length of buffer supplied */
 425        void                            __user *buffer; /* returned names */
 426} xfs_fsop_attrlist_handlereq_t;
 427
 428typedef struct xfs_attr_multiop {
 429        __u32           am_opcode;
 430#define ATTR_OP_GET     1       /* return the indicated attr's value */
 431#define ATTR_OP_SET     2       /* set/create the indicated attr/value pair */
 432#define ATTR_OP_REMOVE  3       /* remove the indicated attr */
 433        __s32           am_error;
 434        void            __user *am_attrname;
 435        void            __user *am_attrvalue;
 436        __u32           am_length;
 437        __u32           am_flags;
 438} xfs_attr_multiop_t;
 439
 440typedef struct xfs_fsop_attrmulti_handlereq {
 441        struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 442        __u32                           opcount;/* count of following multiop */
 443        struct xfs_attr_multiop         __user *ops; /* attr_multi data */
 444} xfs_fsop_attrmulti_handlereq_t;
 445
 446/*
 447 * per machine unique filesystem identifier types.
 448 */
 449typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
 450
 451typedef struct xfs_fid {
 452        __u16   fid_len;                /* length of remainder  */
 453        __u16   fid_pad;
 454        __u32   fid_gen;                /* generation number    */
 455        __u64   fid_ino;                /* 64 bits inode number */
 456} xfs_fid_t;
 457
 458typedef struct xfs_handle {
 459        union {
 460                __s64       align;      /* force alignment of ha_fid     */
 461                xfs_fsid_t  _ha_fsid;   /* unique file system identifier */
 462        } ha_u;
 463        xfs_fid_t       ha_fid;         /* file system specific file ID  */
 464} xfs_handle_t;
 465#define ha_fsid ha_u._ha_fsid
 466
 467#define XFS_HSIZE(handle)       (((char *) &(handle).ha_fid.fid_pad      \
 468                                 - (char *) &(handle))                    \
 469                                 + (handle).ha_fid.fid_len)
 470
 471/*
 472 * Structure passed to XFS_IOC_SWAPEXT
 473 */
 474typedef struct xfs_swapext
 475{
 476        __int64_t       sx_version;     /* version */
 477#define XFS_SX_VERSION          0
 478        __int64_t       sx_fdtarget;    /* fd of target file */
 479        __int64_t       sx_fdtmp;       /* fd of tmp file */
 480        xfs_off_t       sx_offset;      /* offset into file */
 481        xfs_off_t       sx_length;      /* leng from offset */
 482        char            sx_pad[16];     /* pad space, unused */
 483        xfs_bstat_t     sx_stat;        /* stat of target b4 copy */
 484} xfs_swapext_t;
 485
 486/*
 487 * Flags for going down operation
 488 */
 489#define XFS_FSOP_GOING_FLAGS_DEFAULT            0x0     /* going down */
 490#define XFS_FSOP_GOING_FLAGS_LOGFLUSH           0x1     /* flush log but not data */
 491#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH         0x2     /* don't flush log nor data */
 492
 493/*
 494 * ioctl limits
 495 */
 496#ifdef XATTR_LIST_MAX
 497#  define XFS_XATTR_LIST_MAX XATTR_LIST_MAX
 498#else
 499#  define XFS_XATTR_LIST_MAX 65536
 500#endif
 501
 502
 503/*
 504 * ioctl commands that are used by Linux filesystems
 505 */
 506#define XFS_IOC_GETXFLAGS       FS_IOC_GETFLAGS
 507#define XFS_IOC_SETXFLAGS       FS_IOC_SETFLAGS
 508#define XFS_IOC_GETVERSION      FS_IOC_GETVERSION
 509
 510/*
 511 * ioctl commands that replace IRIX fcntl()'s
 512 * For 'documentation' purposed more than anything else,
 513 * the "cmd #" field reflects the IRIX fcntl number.
 514 */
 515#define XFS_IOC_ALLOCSP         _IOW ('X', 10, struct xfs_flock64)
 516#define XFS_IOC_FREESP          _IOW ('X', 11, struct xfs_flock64)
 517#define XFS_IOC_DIOINFO         _IOR ('X', 30, struct dioattr)
 518#define XFS_IOC_FSGETXATTR      _IOR ('X', 31, struct fsxattr)
 519#define XFS_IOC_FSSETXATTR      _IOW ('X', 32, struct fsxattr)
 520#define XFS_IOC_ALLOCSP64       _IOW ('X', 36, struct xfs_flock64)
 521#define XFS_IOC_FREESP64        _IOW ('X', 37, struct xfs_flock64)
 522#define XFS_IOC_GETBMAP         _IOWR('X', 38, struct getbmap)
 523#define XFS_IOC_FSSETDM         _IOW ('X', 39, struct fsdmidata)
 524#define XFS_IOC_RESVSP          _IOW ('X', 40, struct xfs_flock64)
 525#define XFS_IOC_UNRESVSP        _IOW ('X', 41, struct xfs_flock64)
 526#define XFS_IOC_RESVSP64        _IOW ('X', 42, struct xfs_flock64)
 527#define XFS_IOC_UNRESVSP64      _IOW ('X', 43, struct xfs_flock64)
 528#define XFS_IOC_GETBMAPA        _IOWR('X', 44, struct getbmap)
 529#define XFS_IOC_FSGETXATTRA     _IOR ('X', 45, struct fsxattr)
 530/*      XFS_IOC_SETBIOSIZE ---- deprecated 46      */
 531/*      XFS_IOC_GETBIOSIZE ---- deprecated 47      */
 532#define XFS_IOC_GETBMAPX        _IOWR('X', 56, struct getbmap)
 533#define XFS_IOC_ZERO_RANGE      _IOW ('X', 57, struct xfs_flock64)
 534#define XFS_IOC_FREE_EOFBLOCKS  _IOR ('X', 58, struct xfs_fs_eofblocks)
 535
 536/*
 537 * ioctl commands that replace IRIX syssgi()'s
 538 */
 539#define XFS_IOC_FSGEOMETRY_V1        _IOR ('X', 100, struct xfs_fsop_geom_v1)
 540#define XFS_IOC_FSBULKSTAT           _IOWR('X', 101, struct xfs_fsop_bulkreq)
 541#define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
 542#define XFS_IOC_FSINUMBERS           _IOWR('X', 103, struct xfs_fsop_bulkreq)
 543#define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
 544#define XFS_IOC_PATH_TO_HANDLE       _IOWR('X', 105, struct xfs_fsop_handlereq)
 545#define XFS_IOC_FD_TO_HANDLE         _IOWR('X', 106, struct xfs_fsop_handlereq)
 546#define XFS_IOC_OPEN_BY_HANDLE       _IOWR('X', 107, struct xfs_fsop_handlereq)
 547#define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
 548#define XFS_IOC_SWAPEXT              _IOWR('X', 109, struct xfs_swapext)
 549#define XFS_IOC_FSGROWFSDATA         _IOW ('X', 110, struct xfs_growfs_data)
 550#define XFS_IOC_FSGROWFSLOG          _IOW ('X', 111, struct xfs_growfs_log)
 551#define XFS_IOC_FSGROWFSRT           _IOW ('X', 112, struct xfs_growfs_rt)
 552#define XFS_IOC_FSCOUNTS             _IOR ('X', 113, struct xfs_fsop_counts)
 553#define XFS_IOC_SET_RESBLKS          _IOWR('X', 114, struct xfs_fsop_resblks)
 554#define XFS_IOC_GET_RESBLKS          _IOR ('X', 115, struct xfs_fsop_resblks)
 555#define XFS_IOC_ERROR_INJECTION      _IOW ('X', 116, struct xfs_error_injection)
 556#define XFS_IOC_ERROR_CLEARALL       _IOW ('X', 117, struct xfs_error_injection)
 557/*      XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118      */
 558
 559#define XFS_IOC_FREEZE               _IOWR('X', 119, int)       /* aka FIFREEZE */
 560#define XFS_IOC_THAW                 _IOWR('X', 120, int)       /* aka FITHAW */
 561
 562#define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
 563#define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
 564#define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
 565#define XFS_IOC_FSGEOMETRY           _IOR ('X', 124, struct xfs_fsop_geom)
 566#define XFS_IOC_GOINGDOWN            _IOR ('X', 125, __uint32_t)
 567/*      XFS_IOC_GETFSUUID ---------- deprecated 140      */
 568
 569
 570#ifndef HAVE_BBMACROS
 571/*
 572 * Block I/O parameterization.  A basic block (BB) is the lowest size of
 573 * filesystem allocation, and must equal 512.  Length units given to bio
 574 * routines are in BB's.
 575 */
 576#define BBSHIFT         9
 577#define BBSIZE          (1<<BBSHIFT)
 578#define BBMASK          (BBSIZE-1)
 579#define BTOBB(bytes)    (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
 580#define BTOBBT(bytes)   ((__u64)(bytes) >> BBSHIFT)
 581#define BBTOB(bbs)      ((bbs) << BBSHIFT)
 582#endif
 583
 584#endif  /* __XFS_FS_H__ */
 585