LXR linux/fs/xfs/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_HASATTR       0x80000000      /* no DIFLAG for this   */
  71
  72/*
  73 * Structure for XFS_IOC_GETBMAP.
  74 * On input, fill in bmv_offset and bmv_length of the first structure
  75 * to indicate the area of interest in the file, and bmv_entries with
  76 * the number of array elements given back.  The first structure is
  77 * updated on return to give the offset and length for the next call.
  78 */
  79#ifndef HAVE_GETBMAP
  80struct getbmap {
  81        __s64           bmv_offset;     /* file offset of segment in blocks */
  82        __s64           bmv_block;      /* starting block (64-bit daddr_t)  */
  83        __s64           bmv_length;     /* length of segment, blocks        */
  84        __s32           bmv_count;      /* # of entries in array incl. 1st  */
  85        __s32           bmv_entries;    /* # of entries filled in (output)  */
  86};
  87#endif
  88
  89/*
  90 *      Structure for XFS_IOC_GETBMAPX.  Fields bmv_offset through bmv_entries
  91 *      are used exactly as in the getbmap structure.  The getbmapx structure
  92 *      has additional bmv_iflags and bmv_oflags fields. The bmv_iflags field
  93 *      is only used for the first structure.  It contains input flags
  94 *      specifying XFS_IOC_GETBMAPX actions.  The bmv_oflags field is filled
  95 *      in by the XFS_IOC_GETBMAPX command for each returned structure after
  96 *      the first.
  97 */
  98#ifndef HAVE_GETBMAPX
  99struct getbmapx {
 100        __s64           bmv_offset;     /* file offset of segment in blocks */
 101        __s64           bmv_block;      /* starting block (64-bit daddr_t)  */
 102        __s64           bmv_length;     /* length of segment, blocks        */
 103        __s32           bmv_count;      /* # of entries in array incl. 1st  */
 104        __s32           bmv_entries;    /* # of entries filled in (output). */
 105        __s32           bmv_iflags;     /* input flags (1st structure)      */
 106        __s32           bmv_oflags;     /* output flags (after 1st structure)*/
 107        __s32           bmv_unused1;    /* future use                       */
 108        __s32           bmv_unused2;    /* future use                       */
 109};
 110#endif
 111
 112/*      bmv_iflags values - set by XFS_IOC_GETBMAPX caller.     */
 113#define BMV_IF_ATTRFORK         0x1     /* return attr fork rather than data */
 114#define BMV_IF_NO_DMAPI_READ    0x2     /* Do not generate DMAPI read event  */
 115#define BMV_IF_PREALLOC         0x4     /* rtn status BMV_OF_PREALLOC if req */
 116#define BMV_IF_VALID    (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC)
 117#ifdef __KERNEL__
 118#define BMV_IF_EXTENDED 0x40000000      /* getpmapx if set */
 119#endif
 120
 121/*      bmv_oflags values - returned for for each non-header segment */
 122#define BMV_OF_PREALLOC         0x1     /* segment = unwritten pre-allocation */
 123
 124/*      Convert getbmap <-> getbmapx - move fields from p1 to p2. */
 125#define GETBMAP_CONVERT(p1,p2) {        \
 126        p2.bmv_offset = p1.bmv_offset;  \
 127        p2.bmv_block = p1.bmv_block;    \
 128        p2.bmv_length = p1.bmv_length;  \
 129        p2.bmv_count = p1.bmv_count;    \
 130        p2.bmv_entries = p1.bmv_entries;  }
 131
 132
 133/*
 134 * Structure for XFS_IOC_FSSETDM.
 135 * For use by backup and restore programs to set the XFS on-disk inode
 136 * fields di_dmevmask and di_dmstate.  These must be set to exactly and
 137 * only values previously obtained via xfs_bulkstat!  (Specifically the
 138 * xfs_bstat_t fields bs_dmevmask and bs_dmstate.)
 139 */
 140#ifndef HAVE_FSDMIDATA
 141struct fsdmidata {
 142        __u32           fsd_dmevmask;   /* corresponds to di_dmevmask */
 143        __u16           fsd_padding;
 144        __u16           fsd_dmstate;    /* corresponds to di_dmstate  */
 145};
 146#endif
 147
 148/*
 149 * File segment locking set data type for 64 bit access.
 150 * Also used for all the RESV/FREE interfaces.
 151 */
 152typedef struct xfs_flock64 {
 153        __s16           l_type;
 154        __s16           l_whence;
 155        __s64           l_start;
 156        __s64           l_len;          /* len == 0 means until end of file */
 157        __s32           l_sysid;
 158        __u32           l_pid;
 159        __s32           l_pad[4];       /* reserve area                     */
 160} xfs_flock64_t;
 161
 162/*
 163 * Output for XFS_IOC_FSGEOMETRY_V1
 164 */
 165typedef struct xfs_fsop_geom_v1 {
 166        __u32           blocksize;      /* filesystem (data) block size */
 167        __u32           rtextsize;      /* realtime extent size         */
 168        __u32           agblocks;       /* fsblocks in an AG            */
 169        __u32           agcount;        /* number of allocation groups  */
 170        __u32           logblocks;      /* fsblocks in the log          */
 171        __u32           sectsize;       /* (data) sector size, bytes    */
 172        __u32           inodesize;      /* inode size in bytes          */
 173        __u32           imaxpct;        /* max allowed inode space(%)   */
 174        __u64           datablocks;     /* fsblocks in data subvolume   */
 175        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 176        __u64           rtextents;      /* rt extents in realtime subvol*/
 177        __u64           logstart;       /* starting fsblock of the log  */
 178        unsigned char   uuid[16];       /* unique id of the filesystem  */
 179        __u32           sunit;          /* stripe unit, fsblocks        */
 180        __u32           swidth;         /* stripe width, fsblocks       */
 181        __s32           version;        /* structure version            */
 182        __u32           flags;          /* superblock version flags     */
 183        __u32           logsectsize;    /* log sector size, bytes       */
 184        __u32           rtsectsize;     /* realtime sector size, bytes  */
 185        __u32           dirblocksize;   /* directory block size, bytes  */
 186} xfs_fsop_geom_v1_t;
 187
 188/*
 189 * Output for XFS_IOC_FSGEOMETRY
 190 */
 191typedef struct xfs_fsop_geom {
 192        __u32           blocksize;      /* filesystem (data) block size */
 193        __u32           rtextsize;      /* realtime extent size         */
 194        __u32           agblocks;       /* fsblocks in an AG            */
 195        __u32           agcount;        /* number of allocation groups  */
 196        __u32           logblocks;      /* fsblocks in the log          */
 197        __u32           sectsize;       /* (data) sector size, bytes    */
 198        __u32           inodesize;      /* inode size in bytes          */
 199        __u32           imaxpct;        /* max allowed inode space(%)   */
 200        __u64           datablocks;     /* fsblocks in data subvolume   */
 201        __u64           rtblocks;       /* fsblocks in realtime subvol  */
 202        __u64           rtextents;      /* rt extents in realtime subvol*/
 203        __u64           logstart;       /* starting fsblock of the log  */
 204        unsigned char   uuid[16];       /* unique id of the filesystem  */
 205        __u32           sunit;          /* stripe unit, fsblocks        */
 206        __u32           swidth;         /* stripe width, fsblocks       */
 207        __s32           version;        /* structure version            */
 208        __u32           flags;          /* superblock version flags     */
 209        __u32           logsectsize;    /* log sector size, bytes       */
 210        __u32           rtsectsize;     /* realtime sector size, bytes  */
 211        __u32           dirblocksize;   /* directory block size, bytes  */
 212        __u32           logsunit;       /* log stripe unit, bytes */
 213} xfs_fsop_geom_t;
 214
 215/* Output for XFS_FS_COUNTS */
 216typedef struct xfs_fsop_counts {
 217        __u64   freedata;       /* free data section blocks */
 218        __u64   freertx;        /* free rt extents */
 219        __u64   freeino;        /* free inodes */
 220        __u64   allocino;       /* total allocated inodes */
 221} xfs_fsop_counts_t;
 222
 223/* Input/Output for XFS_GET_RESBLKS and XFS_SET_RESBLKS */
 224typedef struct xfs_fsop_resblks {
 225        __u64  resblks;
 226        __u64  resblks_avail;
 227} xfs_fsop_resblks_t;
 228
 229#define XFS_FSOP_GEOM_VERSION   0
 230
 231#define XFS_FSOP_GEOM_FLAGS_ATTR        0x0001  /* attributes in use    */
 232#define XFS_FSOP_GEOM_FLAGS_NLINK       0x0002  /* 32-bit nlink values  */
 233#define XFS_FSOP_GEOM_FLAGS_QUOTA       0x0004  /* quotas enabled       */
 234#define XFS_FSOP_GEOM_FLAGS_IALIGN      0x0008  /* inode alignment      */
 235#define XFS_FSOP_GEOM_FLAGS_DALIGN      0x0010  /* large data alignment */
 236#define XFS_FSOP_GEOM_FLAGS_SHARED      0x0020  /* read-only shared     */
 237#define XFS_FSOP_GEOM_FLAGS_EXTFLG      0x0040  /* special extent flag  */
 238#define XFS_FSOP_GEOM_FLAGS_DIRV2       0x0080  /* directory version 2  */
 239#define XFS_FSOP_GEOM_FLAGS_LOGV2       0x0100  /* log format version 2 */
 240#define XFS_FSOP_GEOM_FLAGS_SECTOR      0x0200  /* sector sizes >1BB    */
 241#define XFS_FSOP_GEOM_FLAGS_ATTR2       0x0400  /* inline attributes rework */
 242#define XFS_FSOP_GEOM_FLAGS_LAZYSB      0x4000  /* lazy superblock counters */
 243
 244
 245/*
 246 * Minimum and maximum sizes need for growth checks
 247 */
 248#define XFS_MIN_AG_BLOCKS       64
 249#define XFS_MIN_LOG_BLOCKS      512
 250#define XFS_MAX_LOG_BLOCKS      (64 * 1024)
 251#define XFS_MIN_LOG_BYTES       (256 * 1024)
 252#define XFS_MAX_LOG_BYTES       (128 * 1024 * 1024)
 253
 254/*
 255 * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
 256 */
 257typedef struct xfs_growfs_data {
 258        __u64           newblocks;      /* new data subvol size, fsblocks */
 259        __u32           imaxpct;        /* new inode space percentage limit */
 260} xfs_growfs_data_t;
 261
 262typedef struct xfs_growfs_log {
 263        __u32           newblocks;      /* new log size, fsblocks */
 264        __u32           isint;          /* 1 if new log is internal */
 265} xfs_growfs_log_t;
 266
 267typedef struct xfs_growfs_rt {
 268        __u64           newblocks;      /* new realtime size, fsblocks */
 269        __u32           extsize;        /* new realtime extent size, fsblocks */
 270} xfs_growfs_rt_t;
 271
 272
 273/*
 274 * Structures returned from ioctl XFS_IOC_FSBULKSTAT & XFS_IOC_FSBULKSTAT_SINGLE
 275 */
 276typedef struct xfs_bstime {
 277        time_t          tv_sec;         /* seconds              */
 278        __s32           tv_nsec;        /* and nanoseconds      */
 279} xfs_bstime_t;
 280
 281typedef struct xfs_bstat {
 282        __u64           bs_ino;         /* inode number                 */
 283        __u16           bs_mode;        /* type and mode                */
 284        __u16           bs_nlink;       /* number of links              */
 285        __u32           bs_uid;         /* user id                      */
 286        __u32           bs_gid;         /* group id                     */
 287        __u32           bs_rdev;        /* device value                 */
 288        __s32           bs_blksize;     /* block size                   */
 289        __s64           bs_size;        /* file size                    */
 290        xfs_bstime_t    bs_atime;       /* access time                  */
 291        xfs_bstime_t    bs_mtime;       /* modify time                  */
 292        xfs_bstime_t    bs_ctime;       /* inode change time            */
 293        int64_t         bs_blocks;      /* number of blocks             */
 294        __u32           bs_xflags;      /* extended flags               */
 295        __s32           bs_extsize;     /* extent size                  */
 296        __s32           bs_extents;     /* number of extents            */
 297        __u32           bs_gen;         /* generation count             */
 298        __u16           bs_projid;      /* project id                   */
 299        unsigned char   bs_pad[14];     /* pad space, unused            */
 300        __u32           bs_dmevmask;    /* DMIG event mask              */
 301        __u16           bs_dmstate;     /* DMIG state info              */
 302        __u16           bs_aextents;    /* attribute number of extents  */
 303} xfs_bstat_t;
 304
 305/*
 306 * The user-level BulkStat Request interface structure.
 307 */
 308typedef struct xfs_fsop_bulkreq {
 309        __u64           __user *lastip; /* last inode # pointer         */
 310        __s32           icount;         /* count of entries in buffer   */
 311        void            __user *ubuffer;/* user buffer for inode desc.  */
 312        __s32           __user *ocount; /* output count pointer         */
 313} xfs_fsop_bulkreq_t;
 314
 315
 316/*
 317 * Structures returned from xfs_inumbers routine (XFS_IOC_FSINUMBERS).
 318 */
 319typedef struct xfs_inogrp {
 320        __u64           xi_startino;    /* starting inode number        */
 321        __s32           xi_alloccount;  /* # bits set in allocmask      */
 322        __u64           xi_allocmask;   /* mask of allocated inodes     */
 323} xfs_inogrp_t;
 324
 325
 326/*
 327 * Error injection.
 328 */
 329typedef struct xfs_error_injection {
 330        __s32           fd;
 331        __s32           errtag;
 332} xfs_error_injection_t;
 333
 334
 335/*
 336 * The user-level Handle Request interface structure.
 337 */
 338typedef struct xfs_fsop_handlereq {
 339        __u32           fd;             /* fd for FD_TO_HANDLE          */
 340        void            __user *path;   /* user pathname                */
 341        __u32           oflags;         /* open flags                   */
 342        void            __user *ihandle;/* user supplied handle         */
 343        __u32           ihandlen;       /* user supplied length         */
 344        void            __user *ohandle;/* user buffer for handle       */
 345        __u32           __user *ohandlen;/* user buffer length          */
 346} xfs_fsop_handlereq_t;
 347
 348/*
 349 * Compound structures for passing args through Handle Request interfaces
 350 * xfs_fssetdm_by_handle, xfs_attrlist_by_handle, xfs_attrmulti_by_handle
 351 * - ioctls: XFS_IOC_FSSETDM_BY_HANDLE, XFS_IOC_ATTRLIST_BY_HANDLE, and
 352 *           XFS_IOC_ATTRMULTI_BY_HANDLE
 353 */
 354
 355typedef struct xfs_fsop_setdm_handlereq {
 356        struct xfs_fsop_handlereq       hreq;   /* handle information   */
 357        struct fsdmidata                __user *data;   /* DMAPI data   */
 358} xfs_fsop_setdm_handlereq_t;
 359
 360typedef struct xfs_attrlist_cursor {
 361        __u32           opaque[4];
 362} xfs_attrlist_cursor_t;
 363
 364typedef struct xfs_fsop_attrlist_handlereq {
 365        struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 366        struct xfs_attrlist_cursor      pos; /* opaque cookie, list offset */
 367        __u32                           flags;  /* which namespace to use */
 368        __u32                           buflen; /* length of buffer supplied */
 369        void                            __user *buffer; /* returned names */
 370} xfs_fsop_attrlist_handlereq_t;
 371
 372typedef struct xfs_attr_multiop {
 373        __u32           am_opcode;
 374        __s32           am_error;
 375        void            __user *am_attrname;
 376        void            __user *am_attrvalue;
 377        __u32           am_length;
 378        __u32           am_flags;
 379} xfs_attr_multiop_t;
 380
 381typedef struct xfs_fsop_attrmulti_handlereq {
 382        struct xfs_fsop_handlereq       hreq; /* handle interface structure */
 383        __u32                           opcount;/* count of following multiop */
 384        struct xfs_attr_multiop         __user *ops; /* attr_multi data */
 385} xfs_fsop_attrmulti_handlereq_t;
 386
 387/*
 388 * per machine unique filesystem identifier types.
 389 */
 390typedef struct { __u32 val[2]; } xfs_fsid_t; /* file system id type */
 391
 392typedef struct xfs_fid {
 393        __u16   fid_len;                /* length of remainder  */
 394        __u16   fid_pad;
 395        __u32   fid_gen;                /* generation number    */
 396        __u64   fid_ino;                /* 64 bits inode number */
 397} xfs_fid_t;
 398
 399typedef struct xfs_handle {
 400        union {
 401                __s64       align;      /* force alignment of ha_fid     */
 402                xfs_fsid_t  _ha_fsid;   /* unique file system identifier */
 403        } ha_u;
 404        xfs_fid_t       ha_fid;         /* file system specific file ID  */
 405} xfs_handle_t;
 406#define ha_fsid ha_u._ha_fsid
 407
 408#define XFS_HSIZE(handle)       (((char *) &(handle).ha_fid.fid_pad      \
 409                                 - (char *) &(handle))                    \
 410                                 + (handle).ha_fid.fid_len)
 411
 412/*
 413 * Flags for going down operation
 414 */
 415#define XFS_FSOP_GOING_FLAGS_DEFAULT            0x0     /* going down */
 416#define XFS_FSOP_GOING_FLAGS_LOGFLUSH           0x1     /* flush log but not data */
 417#define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH         0x2     /* don't flush log nor data */
 418
 419/*
 420 * ioctl commands that are used by Linux filesystems
 421 */
 422#define XFS_IOC_GETXFLAGS       FS_IOC_GETFLAGS
 423#define XFS_IOC_SETXFLAGS       FS_IOC_SETFLAGS
 424#define XFS_IOC_GETVERSION      FS_IOC_GETVERSION
 425/* 32-bit compat counterparts */
 426#define XFS_IOC32_GETXFLAGS     FS_IOC32_GETFLAGS
 427#define XFS_IOC32_SETXFLAGS     FS_IOC32_SETFLAGS
 428#define XFS_IOC32_GETVERSION    FS_IOC32_GETVERSION
 429
 430/*
 431 * ioctl commands that replace IRIX fcntl()'s
 432 * For 'documentation' purposed more than anything else,
 433 * the "cmd #" field reflects the IRIX fcntl number.
 434 */
 435#define XFS_IOC_ALLOCSP         _IOW ('X', 10, struct xfs_flock64)
 436#define XFS_IOC_FREESP          _IOW ('X', 11, struct xfs_flock64)
 437#define XFS_IOC_DIOINFO         _IOR ('X', 30, struct dioattr)
 438#define XFS_IOC_FSGETXATTR      _IOR ('X', 31, struct fsxattr)
 439#define XFS_IOC_FSSETXATTR      _IOW ('X', 32, struct fsxattr)
 440#define XFS_IOC_ALLOCSP64       _IOW ('X', 36, struct xfs_flock64)
 441#define XFS_IOC_FREESP64        _IOW ('X', 37, struct xfs_flock64)
 442#define XFS_IOC_GETBMAP         _IOWR('X', 38, struct getbmap)
 443#define XFS_IOC_FSSETDM         _IOW ('X', 39, struct fsdmidata)
 444#define XFS_IOC_RESVSP          _IOW ('X', 40, struct xfs_flock64)
 445#define XFS_IOC_UNRESVSP        _IOW ('X', 41, struct xfs_flock64)
 446#define XFS_IOC_RESVSP64        _IOW ('X', 42, struct xfs_flock64)
 447#define XFS_IOC_UNRESVSP64      _IOW ('X', 43, struct xfs_flock64)
 448#define XFS_IOC_GETBMAPA        _IOWR('X', 44, struct getbmap)
 449#define XFS_IOC_FSGETXATTRA     _IOR ('X', 45, struct fsxattr)
 450/*      XFS_IOC_SETBIOSIZE ---- deprecated 46      */
 451/*      XFS_IOC_GETBIOSIZE ---- deprecated 47      */
 452#define XFS_IOC_GETBMAPX        _IOWR('X', 56, struct getbmap)
 453
 454/*
 455 * ioctl commands that replace IRIX syssgi()'s
 456 */
 457#define XFS_IOC_FSGEOMETRY_V1        _IOR ('X', 100, struct xfs_fsop_geom_v1)
 458#define XFS_IOC_FSBULKSTAT           _IOWR('X', 101, struct xfs_fsop_bulkreq)
 459#define XFS_IOC_FSBULKSTAT_SINGLE    _IOWR('X', 102, struct xfs_fsop_bulkreq)
 460#define XFS_IOC_FSINUMBERS           _IOWR('X', 103, struct xfs_fsop_bulkreq)
 461#define XFS_IOC_PATH_TO_FSHANDLE     _IOWR('X', 104, struct xfs_fsop_handlereq)
 462#define XFS_IOC_PATH_TO_HANDLE       _IOWR('X', 105, struct xfs_fsop_handlereq)
 463#define XFS_IOC_FD_TO_HANDLE         _IOWR('X', 106, struct xfs_fsop_handlereq)
 464#define XFS_IOC_OPEN_BY_HANDLE       _IOWR('X', 107, struct xfs_fsop_handlereq)
 465#define XFS_IOC_READLINK_BY_HANDLE   _IOWR('X', 108, struct xfs_fsop_handlereq)
 466#define XFS_IOC_SWAPEXT              _IOWR('X', 109, struct xfs_swapext)
 467#define XFS_IOC_FSGROWFSDATA         _IOW ('X', 110, struct xfs_growfs_data)
 468#define XFS_IOC_FSGROWFSLOG          _IOW ('X', 111, struct xfs_growfs_log)
 469#define XFS_IOC_FSGROWFSRT           _IOW ('X', 112, struct xfs_growfs_rt)
 470#define XFS_IOC_FSCOUNTS             _IOR ('X', 113, struct xfs_fsop_counts)
 471#define XFS_IOC_SET_RESBLKS          _IOWR('X', 114, struct xfs_fsop_resblks)
 472#define XFS_IOC_GET_RESBLKS          _IOR ('X', 115, struct xfs_fsop_resblks)
 473#define XFS_IOC_ERROR_INJECTION      _IOW ('X', 116, struct xfs_error_injection)
 474#define XFS_IOC_ERROR_CLEARALL       _IOW ('X', 117, struct xfs_error_injection)
 475/*      XFS_IOC_ATTRCTL_BY_HANDLE -- deprecated 118      */
 476#define XFS_IOC_FREEZE               _IOWR('X', 119, int)
 477#define XFS_IOC_THAW                 _IOWR('X', 120, int)
 478#define XFS_IOC_FSSETDM_BY_HANDLE    _IOW ('X', 121, struct xfs_fsop_setdm_handlereq)
 479#define XFS_IOC_ATTRLIST_BY_HANDLE   _IOW ('X', 122, struct xfs_fsop_attrlist_handlereq)
 480#define XFS_IOC_ATTRMULTI_BY_HANDLE  _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
 481#define XFS_IOC_FSGEOMETRY           _IOR ('X', 124, struct xfs_fsop_geom)
 482#define XFS_IOC_GOINGDOWN            _IOR ('X', 125, __uint32_t)
 483/*      XFS_IOC_GETFSUUID ---------- deprecated 140      */
 484
 485
 486#ifndef HAVE_BBMACROS
 487/*
 488 * Block I/O parameterization.  A basic block (BB) is the lowest size of
 489 * filesystem allocation, and must equal 512.  Length units given to bio
 490 * routines are in BB's.
 491 */
 492#define BBSHIFT         9
 493#define BBSIZE          (1<<BBSHIFT)
 494#define BBMASK          (BBSIZE-1)
 495#define BTOBB(bytes)    (((__u64)(bytes) + BBSIZE - 1) >> BBSHIFT)
 496#define BTOBBT(bytes)   ((__u64)(bytes) >> BBSHIFT)
 497#define BBTOB(bbs)      ((bbs) << BBSHIFT)
 498#endif
 499
 500#endif  /* __XFS_FS_H__ */
 501