fs/xfs/xfs_fs.h

   1 /*
   2  * Copyright (c) 1995-2003 Silicon Graphics, Inc.  All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of version 2.1 of the GNU Lesser General Public License
   6  * as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it would be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  11  *
  12  * Further, this software is distributed without any warranty that it is
  13  * free of the rightful claim of any third person regarding infringement
  14  * or the like.  Any license provided herein, whether implied or
  15  * otherwise, applies only to this software file.  Patent licenses, if
  16  * any, provided herein do not apply to combinations of this program with
  17  * other software, or any other product whatsoever.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this program; if not, write the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
  22  * USA.
  23  *
  24  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
  25  * Mountain View, CA  94043, or:
  26  *
  27  * http://www.sgi.com
  28  *
  29  * For further information regarding this notice, see:
  30  *
  31  * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
  32  */
  33 #ifndef __XFS_FS_H__
  34 #define __XFS_FS_H__
  35
  36 /*
  37  * SGI's XFS filesystem's major stuff (constants, structures)
  38  */
  39
  40 #define XFS_NAME        "xfs"
  41
  42 /*
  43  * Direct I/O attribute record used with XFS_IOC_DIOINFO
  44  * d_miniosz is the min xfer size, xfer size multiple and file seek offset
  45  * alignment.
  46  */
  47 #ifndef HAVE_DIOATTR
  48 struct dioattr {
  49         __u32           d_mem;          /* data buffer memory alignment */
  50         __u32           d_miniosz;      /* min xfer size                */
  51         __u32           d_maxiosz;      /* max xfer size                */
  52 };
  53 #endif
  54
  55 /*
  56  * Structure for XFS_IOC_FSGETXATTR[A] and XFS_IOC_FSSETXATTR.
  57  */
  58 #ifndef HAVE_FSXATTR
  59 struct fsxattr {
  60         __u32           fsx_xflags;     /* xflags field value (get/set) */
  61         __u32           fsx_extsize;    /* extsize field value (get/set)*/
  62         __u32           fsx_nextents;   /* nextents field value (get)   */
  63         unsigned char   fsx_pad[16];
  64 };
  65 #endif
  66
  67 /*
  68  * Flags for the bs_xflags/fsx_xflags field
  69  * There should be a one-to-one correspondence between these flags and the
  70  * XFS_DIFLAG_s.
  71  */
  72 #define XFS_XFLAG_REALTIME      0x00000001      /* data in realtime volume */
  73 #define XFS_XFLAG_PREALLOC      0x00000002      /* preallocated file extents */
  74 #define XFS_XFLAG_IMMUTABLE     0x00000008      /* file cannot be modified */
  75 #define XFS_XFLAG_APPEND        0x00000010      /* all writes append */
  76 #define XFS_XFLAG_SYNC          0x00000020      /* all writes synchronous */
  77 #define XFS_XFLAG_NOATIME       0x00000040      /* do not update access time */
  78 #define XFS_XFLAG_NODUMP        0x00000080      /* do not include in backups */
  79 #define XFS_XFLAG_RTINHERIT     0x00000100      /* create with rt bit set */
  80 #define XFS_XFLAG_PROJINHERIT   0x00000200      /* create with parents projid */
  81 #define XFS_XFLAG_NOSYMLINKS    0x00000400      /* disallow symlink creation */
  82 #define XFS_XFLAG_HASATTR       0x80000000      /* no DIFLAG for this   */
  83
  84 /*
  85  * Structure for XFS_IOC_GETBMAP.
  86  * On input, fill in bmv_offset and bmv_length of the first structure
  87  * to indicate the area of interest in the file, and bmv_entry with the
  88  * number of array elements given.  The first structure is updated on
  89  * return to give the offset and length for the next call.
  90  */
  91 #ifndef HAVE_GETBMAP
  92 struct getbmap {
  93         __s64           bmv_offset;     /* file offset of segment in blocks */
  94         __s64           bmv_block;      /* starting block (64-bit daddr_t)  */
  95         __s64           bmv_length;     /* length of segment, blocks        */
  96         __s32           bmv_count;      /* # of entries in array incl. 1st  */
  97         __s32           bmv_entries;    /* # of entries filled in (output)  */
  98 };
  99 #endif
 100
 101 /*
 102  *      Structure for XFS_IOC_GETBMAPX.  Fields bmv_offset through bmv_entries
 103  *      are used exactly as in the getbmap structure.  The getbmapx structure
 104  *      has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
 105  *      is only used for the first structure.  It contains input flags
 106  *      specifying XFS_IOC_GETBMAPX actions.  The bmv_oflags field is filled
 107  *      in by the XFS_IOC_GETBMAPX command for each returned structure after
 108  *      the first.
 109  */
 110 #ifndef HAVE_GETBMAPX
 111 struct getbmapx {
 112         __s64           bmv_offset;     /* file offset of segment in blocks */
 113         __s64           bmv_block;      /* starting block (64-bit daddr_t)  */
 114         __s64           bmv_length;     /* length of segment, blocks        */
 115         __s32           bmv_count;      /* # of entries in array incl. 1st  */
 116         __s32           bmv_entries;    /* # of entries filled in (output). */
 117         __s32           bmv_iflags;     /* input flags (1st structure)      */
 118         __s32           bmv_oflags;     /* output flags (after 1st structure)*/
 119         __s32           bmv_unused1;    /* future use                       */
 120         __s32           bmv_unused2;    /* future use                       */
 121 };
 122 #endif
 123
 124 /*      bmv_iflags values - set by XFS_IOC_GETBMAPX caller.     */
 125 #define BMV_IF_ATTRFORK         0x1     /* return attr fork rather than data */
 126 #define BMV_IF_NO_DMAPI_READ    0x2     /* Do not generate DMAPI read event  */
 127 #define BMV_IF_PREALLOC         0x4     /* rtn status BMV_OF_PREALLOC if req */
 128 #define BMV_IF_VALID    (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC)
 129 #ifdef __KERNEL__
 130 #define BMV_IF_EXTENDED 0x40000000      /* getpmapx if set */
 131 #endif
 132
 133 /*      bmv_oflags values - returned for for each non-header segment */
 134 #define BMV_OF_PREALLOC         0x1     /* segment = unwritten pre-allocation */
 135
 136 /*      Convert getbmap <-> getbmapx - move fields from p1 to p2. */
 137 #define GETBMAP_CONVERT(p1,p2) {        \
 138         p2.bmv_offset = p1.bmv_offset;  \
 139         p2.bmv_block = p1.bmv_block;    \
 140         p2.bmv_length = p1.bmv_length;  \
 141         p2.bmv_count = p1.bmv_count;    \
 142         p2.bmv_entries = p1.bmv_entries;  }
 143
 144
 145 /*
 146  * Structure for XFS_IOC_FSSETDM.
 147  * For use by backup and restore programs to set the XFS on-disk inode
 148  * fields di_dmevmask and di_dmstate.  These must be set to exactly and
 149  * only values previously obtained via xfs_bulkstat!  (Specifically the
 150  * xfs_bstat_t fields bs_dmevmask and bs_dmstate.)
 151  */
 152 #ifndef HAVE_FSDMIDATA
 153 struct fsdmidata {
 154         __u32           fsd_dmevmask;   /* corresponds to di_dmevmask */
 155         __u16           fsd_padding;
 156         __u16           fsd_dmstate;    /* corresponds to di_dmstate  */
 157 };
 158 #endif
 159
 160 /*
 161  * File segment locking set data type for 64 bit access.
 162  * Also used for all the RESV/FREE interfaces.
 163  */
 164 typedef struct xfs_flock64 {
 165         __s16           l_type;
 166         __s16           l_whence;
 167         __s64           l_start;
 168         __s64           l_len;          /* len == 0 means until end of file */
 169         __s32           l_sysid;
 170         __u32           l_pid;
 171         __s32           l_pad[4];       /* reserve area                     */
 172 } xfs_flock64_t;
 173
 174 /*
 175  * Output for XFS_IOC_FSGEOMETRY_V1
 176  */
 177 typedef struct xfs_fsop_geom_v1 {
 178         __u32           blocksize;      /* filesystem (data) block size */
 179         __u32           rtextsize;      /* realtime extent size         */
 180         __u32           agblocks;       /* fsblocks in an AG            */
 181         __u32           agcount;        /* number of allocation groups  */
 182         __u32           logblocks;      /* fsblocks in the log          */
 183         __u32           sectsize;       /* (data) sector size, bytes    */
 184         __u32           inodesize;      /* inode size in bytes          */
 185         __u32           imaxpct;        /* max allowed inode space(%)   */
 186         __u64           datablocks;     /* fsblocks in data subvolume   */
 187         __u64           rtblocks;       /* fsblocks in realtime subvol  */
 188         __u64           rtextents;      /* rt extents in realtime subvol*/
 189         __u64           logstart;       /* starting fsblock of the log  */
 190         unsigned char   uuid[16];       /* unique id of the filesystem  */
 191         __u32           sunit;          /* stripe unit, fsblocks        */
 192         __u32           swidth;         /* stripe width, fsblocks       */
 193         __s32           version;        /* structure version            */
 194         __u32           flags;          /* superblock version flags     */
 195         __u32           logsectsize;    /* log sector size, bytes       */
 196         __u32           rtsectsize;     /* realtime sector size, bytes  */
 197         __u32           dirblocksize;   /* directory block size, bytes  */
 198 } xfs_fsop_geom_v1_t;
 199
 200 /*
 201  * Output for XFS_IOC_FSGEOMETRY
 202  */
 203 typedef struct xfs_fsop_geom {
 204         __u32           blocksize;      /* filesystem (data) block size */
 205         __u32           rtextsize;      /* realtime extent size         */
 206         __u32           agblocks;       /* fsblocks in an AG            */
 207         __u32           agcount;        /* number of allocation groups  */
 208         __u32           logblocks;      /* fsblocks in the log          */
 209         __u32           sectsize;       /* (data) sector size, bytes    */
 210         __u32           inodesize;      /* inode size in bytes          */
 211         __u32           imaxpct;        /* max allowed inode space(%)   */
 212         __u64           datablocks;     /* fsblocks in data subvolume   */
 213         __u64           rtblocks;       /* fsblocks in realtime subvol  */
 214         __u64           rtextents;      /* rt extents in realtime subvol*/
 215         __u64           logstart;       /* starting fsblock of the log  */
 216         unsigned char   uuid[16];       /* unique id of the filesystem  */
 217         __u32           sunit;          /* stripe unit, fsblocks        */
 218         __u32           swidth;         /* stripe width, fsblocks       */
 219         __s32           version;        /* structure version            */
 220         __u32           flags;          /* superblock version flags     */
 221         __u32           logsectsize;    /* log sector size, bytes       */
 222         __u32           rtsectsize;     /* realtime sector size, bytes  */
 223         __u32           dirblocksize;   /* directory block size, bytes  */
 224         __u32           logsunit;       /* log stripe unit, bytes */
 225 } xfs_fsop_geom_t;
 226
 227 /* Output for XFS_FS_COUNTS */
 228 typedef struct xfs_fsop_counts {
 229         __u64   freedata;       /* free data section blocks */
 230         __u64   freertx;        /* free rt extents */
 231         __u64   freeino;        /* free inodes */
 232         __u64   allocino;       /* total allocated inodes */
 233 } xfs_fsop_counts_t;
 234
 235 /* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
 236 typedef struct xfs_fsop_resblks {
 237         __u64  resblks;
 238         __u64  resblks_avail;
 239 } xfs_fsop_resblks_t;
 240
 241 #define XFS_FSOP_GEOM_VERSION   0
 242
 243 #define XFS_FSOP_GEOM_FLAGS_ATTR        0x0001  /* attributes in use    */
 244 #define XFS_FSOP_GEOM_FLAGS_NLINK       0x0002  /* 32-bit nlink values  */
 245 #define XFS_FSOP_GEOM_FLAGS_QUOTA       0x0004  /* quotas enabled       */
 246 #define XFS_FSOP_GEOM_FLAGS_IALIGN      0x0008  /* inode alignment      */
 247 #define XFS_FSOP_GEOM_FLAGS_DALIGN      0x0010  /* large data alignment */
 248 #define XFS_FSOP_GEOM_FLAGS_SHARED      0x0020  /* read-only shared     */
 249 #define XFS_FSOP_GEOM_FLAGS_EXTFLG      0x0040  /* special extent flag  */
 250 #define XFS_FSOP_GEOM_FLAGS_DIRV2       0x0080  /* directory version 2  */
 251 #define XFS_FSOP_GEOM_FLAGS_LOGV2       0x0100  /* log format version 2 */
 252 #define XFS_FSOP_GEOM_FLAGS_SECTOR      0x0200  /* sector sizes >1BB    */
 253
 254
 255 /*
 256  * Minimum and maximum sizes need for growth checks
 257  */
 258 #define XFS_MIN_AG_BLOCKS       64
 259 #define XFS_MIN_LOG_BLOCKS      512
 260 #define XFS_MAX_LOG_BLOCKS      (64 * 1024)
 261 #define XFS_MIN_LOG_BYTES       (256 * 1024)
 262 #define XFS_MAX_LOG_BYTES       (128 * 1024 * 1024)
 263
 264 /*
 265  * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
 266  */
 267 typedef 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
 272 typedef 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
 277 typedef 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  */
 286 typedef struct xfs_bstime {
 287         time_t          tv_sec;         /* seconds              */
 288         __s32           tv_nsec;        /* and nanoseconds      */
 289 } xfs_bstime_t;
 290
 291 typedef 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;      /* project id                   */
 309         unsigned char   bs_pad[14];     /* pad space, unused            */
 310         __u32           bs_dmevmask;    /* DMIG event mask              */
 311         __u16           bs_dmstate;     /* DMIG state info              */
 312         __u16           bs_aextents;    /* attribute number of extents  */
 313 } xfs_bstat_t;
 314
 315 /*
 316  * The user-level BulkStat Request interface structure.
 317  */
 318 typedef struct xfs_fsop_bulkreq {
 319         __u64           __user *lastip; /* last inode # pointer         */
 320         __s32           icount;         /* count of entries in buffer   */
 321         void            __user *ubuffer;/* user buffer for inode desc.  */
 322         __s32           __user *ocount; /* output count pointer         */
 323 } xfs_fsop_bulkreq_t;
 324
 325
 326 /*
 327  * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
 328  */
 329 typedef struct xfs_inogrp {
 330         __u64           xi_startino;    /* starting inode number        */
 331         __s32           xi_alloccount;  /* # bits set in allocmask      */
 332         __u64           xi_allocmask;   /* mask of allocated inodes     */
 333 } xfs_inogrp_t;
 334
 335
 336 /*
 337  * Error injection.
 338  */
 339 typedef struct xfs_error_injection {
 340         __s32           fd;
 341         __s32           errtag;
 342 } xfs_error_injection_t;
 343
 344
 345 /*
 346  * The user-level Handle Request interface structure.
 347  */
 348 typedef struct xfs_fsop_handlereq {
 349         __u32           fd;             /* fd for FD_TO_HANDLE          */
 350         void            __user *path;   /* user pathname                */
 351         __u32           oflags;         /* open flags                   */
 352         void            __user *ihandle;/* user supplied handle         */
 353         __u32           ihandlen;       /* user supplied length         */
 354         void            __user *ohandle;/* user buffer for handle       */
 355         __u32           __user *ohandlen;/* user buffer length          */
 356 } xfs_fsop_handlereq_t;
 357
 358 /*
 359  * Compound structures for passing args through Handle Request interfaces
 360  * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
 361  * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
 362  *           XFS_IOC_ATTRMULTI_BY_HANDLE
 363  */
 364
 365 typedef struct xfs_fsop_setdm_handlereq {
 366         struct xfs_fsop_handlereq       hreq;   /* handle information   */
 367         struct fsdmidata                __user *data;   /* DMAPI data   */
 368 } xfs_fsop_setdm_handlereq_t;
 369
 370 typedef struct xfs_attrlist_cursor {
 371         __u32           opaque[4];
 372 } xfs_attrlist_cursor_t;
 373
 374 typedef struct xfs_fsop_attrlist_handlereq {
 375         struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 376         struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
 377         __u32                           flags;  /* which namespace to use */
 378         __u32                           buflen; /* length of buffer supplied */
 379         void                            __user *buffer; /* returned names */
 380 } xfs_fsop_attrlist_handlereq_t;
 381
 382 typedef struct xfs_attr_multiop {
 383         __u32           am_opcode;
 384         __s32           am_error;
 385         void            __user *am_attrname;
 386         void            __user *am_attrvalue;
 387         __u32           am_length;
 388         __u32           am_flags;
 389 } xfs_attr_multiop_t;
 390
 391 typedef struct xfs_fsop_attrmulti_handlereq {
 392         struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 393         __u32                           opcount;/* count of following multiop */
 394         struct xfs_attr_multiop         __user *ops; /* attr_multi data */
 395 } xfs_fsop_attrmulti_handlereq_t;
 396
 397 /*
 398  * per machine unique filesystem identifier types.
 399  */
 400 typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
 401
 402
 403 #ifndef HAVE_FID
 404 #define MAXFIDSZ        46
 405
 406 typedef struct fid {
 407         __u16           fid_len;                /* length of data in bytes */
 408         unsigned char   fid_data[MAXFIDSZ];     /* data (fid_len worth)  */
 409 } fid_t;
 410 #endif
 411
 412 typedef struct xfs_fid {
 413         __u16   xfs_fid_len;            /* length of remainder  */
 414         __u16   xfs_fid_pad;
 415         __u32   xfs_fid_gen;            /* generation number    */
 416         __u64   xfs_fid_ino;            /* 64 bits inode number */
 417 } xfs_fid_t;
 418
 419 typedef struct xfs_fid2 {
 420         __u16   fid_len;        /* length of remainder */
 421         __u16   fid_pad;        /* padding, must be zero */
 422         __u32   fid_gen;        /* generation number */
 423         __u64   fid_ino;        /* inode number */
 424 } xfs_fid2_t;
 425
 426 typedef struct xfs_handle {
 427         union {
 428                 __s64       align;      /* force alignment of ha_fid     */
 429                 xfs_fsid_t  _ha_fsid;   /* unique file system identifier */
 430         } ha_u;
 431         xfs_fid_t       ha_fid;         /* file system specific file ID  */
 432 } xfs_handle_t;
 433 #define ha_fsid ha_u._ha_fsid
 434
 435 #define XFS_HSIZE(handle)       (((char *) &(handle).ha_fid.xfs_fid_pad  \
 436                                  - (char *) &(handle))                    \
 437                                  + (handle).ha_fid.xfs_fid_len)
 438
 439 #define XFS_HANDLE_CMP(h1, h2)  memcmp(h1, h2, sizeof(xfs_handle_t))
 440
 441 #define FSHSIZE         sizeof(fsid_t)
 442
 443 /*
 444  * Flags for going down operation
 445  */
 446 #define XFS_FSOP_GOING_FLAGS_DEFAULT            0x0     /* going down */
 447 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH           0x1     /* flush log but not data */
 448 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH         0x2     /* don't flush log nor data */
 449
 450 /*
 451  * ioctl commands that are used by Linux filesystems
 452  */
 453 #define XFS_IOC_GETXFLAGS       _IOR('f', 1, long)
 454 #define XFS_IOC_SETXFLAGS       _IOW('f', 2, long)
 455 #define XFS_IOC_GETVERSION      _IOR('v', 1, long)
 456
 457 /*
 458  * ioctl commands that replace IRIX fcntl()'s
 459  * For 'documentation' purposed more than anything else,
 460  * the "cmd #" field reflects the IRIX fcntl number.
 461  */
 462 #define XFS_IOC_ALLOCSP         _IOW ('X', 10, struct xfs_flock64)
 463 #define XFS_IOC_FREESP          _IOW ('X', 11, struct xfs_flock64)
 464 #define XFS_IOC_DIOINFO         _IOR ('X', 30, struct dioattr)
 465 #define XFS_IOC_FSGETXATTR      _IOR ('X', 31, struct fsxattr)
 466 #define XFS_IOC_FSSETXATTR      _IOW ('X', 32, struct fsxattr)
 467 #define XFS_IOC_ALLOCSP64       _IOW ('X', 36, struct xfs_flock64)
 468 #define XFS_IOC_FREESP64        _IOW ('X', 37, struct xfs_flock64)
 469 #define XFS_IOC_GETBMAP         _IOWR('X', 38, struct getbmap)
 470 #define XFS_IOC_FSSETDM         _IOW ('X', 39, struct fsdmidata)
 471 #define XFS_IOC_RESVSP          _IOW ('X', 40, struct xfs_flock64)
 472 #define XFS_IOC_UNRESVSP        _IOW ('X', 41, struct xfs_flock64)
 473 #define XFS_IOC_RESVSP64        _IOW ('X', 42, struct xfs_flock64)
 474 #define XFS_IOC_UNRESVSP64      _IOW ('X', 43, struct xfs_flock64)
 475 #define XFS_IOC_GETBMAPA        _IOWR('X', 44, struct getbmap)
 476 #define XFS_IOC_FSGETXATTRA     _IOR ('X', 45, struct fsxattr)
 477 /*      XFS_IOC_SETBIOSIZE ---- deprecated 46      */
 478 /*      XFS_IOC_GETBIOSIZE ---- deprecated 47      */
 479 #define XFS_IOC_GETBMAPX        _IOWR('X', 56, struct getbmap)
 480
 481 /*
 482  * ioctl commands that replace IRIX syssgi()'s
 483  */
 484 #define XFS_IOC_FSGEOMETRY_V1        _IOR ('X', 100, struct xfs_fsop_geom_v1)
 485 #define XFS_IOC_FSBULKSTAT           _IOWR('X', 101, struct xfs_fsop_bulkreq)
 486 #define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
 487 #define XFS_IOC_FSINUMBERS           _IOWR('X', 103, struct xfs_fsop_bulkreq)
 488 #define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
 489 #define XFS_IOC_PATH_TO_HANDLE       _IOWR('X', 105, struct xfs_fsop_handlereq)
 490 #define XFS_IOC_FD_TO_HANDLE         _IOWR('X', 106, struct xfs_fsop_handlereq)
 491 #define XFS_IOC_OPEN_BY_HANDLE       _IOWR('X', 107, struct xfs_fsop_handlereq)
 492 #define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
 493 #define XFS_IOC_SWAPEXT              _IOWR('X', 109, struct xfs_swapext)
 494 #define XFS_IOC_FSGROWFSDATA         _IOW ('X', 110, struct xfs_growfs_data)
 495 #define XFS_IOC_FSGROWFSLOG          _IOW ('X', 111, struct xfs_growfs_log)
 496 #define XFS_IOC_FSGROWFSRT           _IOW ('X', 112, struct xfs_growfs_rt)
 497 #define XFS_IOC_FSCOUNTS             _IOR ('X', 113, struct xfs_fsop_counts)
 498 #define XFS_IOC_SET_RESBLKS          _IOWR('X', 114, struct xfs_fsop_resblks)
 499 #define XFS_IOC_GET_RESBLKS          _IOR ('X', 115, struct xfs_fsop_resblks)
 500 #define XFS_IOC_ERROR_INJECTION      _IOW ('X', 116, struct xfs_error_injection)
 501 #define XFS_IOC_ERROR_CLEARALL       _IOW ('X', 117, struct xfs_error_injection)
 502 /*      XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118      */
 503 #define XFS_IOC_FREEZE               _IOWR('X', 119, int)
 504 #define XFS_IOC_THAW                 _IOWR('X', 120, int)
 505 #define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
 506 #define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
 507 #define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
 508 #define XFS_IOC_FSGEOMETRY           _IOR ('X', 124, struct xfs_fsop_geom)
 509 #define XFS_IOC_GOINGDOWN            _IOR ('X', 125, __uint32_t)
 510 /*      XFS_IOC_GETFSUUID ---------- deprecated 140      */
 511
 512
 513 #ifndef HAVE_BBMACROS
 514 /*
 515  * Block I/O parameterization.  A basic block (BB) is the lowest size of
 516  * filesystem allocation, and must equal 512.  Length units given to bio
 517  * routines are in BB's.
 518  */
 519 #define BBSHIFT         9
 520 #define BBSIZE          (1<<BBSHIFT)
 521 #define BBMASK          (BBSIZE-1)
 522 #define BTOBB(bytes)    (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
 523 #define BTOBBT(bytes)   ((__u64)(bytes) >> BBSHIFT)
 524 #define BBTOB(bbs)      ((bbs) << BBSHIFT)
 525 #endif
 526
 527 #endif  /* __XFS_FS_H__ */