LXR linux/include/uapi/linux/btrfs.h

   1/*
   2 * Copyright (C) 2007 Oracle.  All rights reserved.
   3 *
   4 * This program is free software; you can redistribute it and/or
   5 * modify it under the terms of the GNU General Public
   6 * License v2 as published by the Free Software Foundation.
   7 *
   8 * This program is distributed in the hope that it will be useful,
   9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 * General Public License for more details.
  12 *
  13 * You should have received a copy of the GNU General Public
  14 * License along with this program; if not, write to the
  15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16 * Boston, MA 021110-1307, USA.
  17 */
  18
  19#ifndef _UAPI_LINUX_BTRFS_H
  20#define _UAPI_LINUX_BTRFS_H
  21#include <linux/types.h>
  22#include <linux/ioctl.h>
  23
  24#define BTRFS_IOCTL_MAGIC 0x94
  25#define BTRFS_VOL_NAME_MAX 255
  26
  27/* this should be 4k */
  28#define BTRFS_PATH_NAME_MAX 4087
  29struct btrfs_ioctl_vol_args {
  30        __s64 fd;
  31        char name[BTRFS_PATH_NAME_MAX + 1];
  32};
  33
  34#define BTRFS_DEVICE_PATH_NAME_MAX 1024
  35
  36#define BTRFS_SUBVOL_CREATE_ASYNC       (1ULL << 0)
  37#define BTRFS_SUBVOL_RDONLY             (1ULL << 1)
  38#define BTRFS_SUBVOL_QGROUP_INHERIT     (1ULL << 2)
  39#define BTRFS_FSID_SIZE 16
  40#define BTRFS_UUID_SIZE 16
  41#define BTRFS_UUID_UNPARSED_SIZE        37
  42
  43#define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
  44
  45struct btrfs_qgroup_limit {
  46        __u64   flags;
  47        __u64   max_rfer;
  48        __u64   max_excl;
  49        __u64   rsv_rfer;
  50        __u64   rsv_excl;
  51};
  52
  53struct btrfs_qgroup_inherit {
  54        __u64   flags;
  55        __u64   num_qgroups;
  56        __u64   num_ref_copies;
  57        __u64   num_excl_copies;
  58        struct btrfs_qgroup_limit lim;
  59        __u64   qgroups[0];
  60};
  61
  62struct btrfs_ioctl_qgroup_limit_args {
  63        __u64   qgroupid;
  64        struct btrfs_qgroup_limit lim;
  65};
  66
  67#define BTRFS_SUBVOL_NAME_MAX 4039
  68struct btrfs_ioctl_vol_args_v2 {
  69        __s64 fd;
  70        __u64 transid;
  71        __u64 flags;
  72        union {
  73                struct {
  74                        __u64 size;
  75                        struct btrfs_qgroup_inherit __user *qgroup_inherit;
  76                };
  77                __u64 unused[4];
  78        };
  79        char name[BTRFS_SUBVOL_NAME_MAX + 1];
  80};
  81
  82/*
  83 * structure to report errors and progress to userspace, either as a
  84 * result of a finished scrub, a canceled scrub or a progress inquiry
  85 */
  86struct btrfs_scrub_progress {
  87        __u64 data_extents_scrubbed;    /* # of data extents scrubbed */
  88        __u64 tree_extents_scrubbed;    /* # of tree extents scrubbed */
  89        __u64 data_bytes_scrubbed;      /* # of data bytes scrubbed */
  90        __u64 tree_bytes_scrubbed;      /* # of tree bytes scrubbed */
  91        __u64 read_errors;              /* # of read errors encountered (EIO) */
  92        __u64 csum_errors;              /* # of failed csum checks */
  93        __u64 verify_errors;            /* # of occurences, where the metadata
  94                                         * of a tree block did not match the
  95                                         * expected values, like generation or
  96                                         * logical */
  97        __u64 no_csum;                  /* # of 4k data block for which no csum
  98                                         * is present, probably the result of
  99                                         * data written with nodatasum */
 100        __u64 csum_discards;            /* # of csum for which no data was found
 101                                         * in the extent tree. */
 102        __u64 super_errors;             /* # of bad super blocks encountered */
 103        __u64 malloc_errors;            /* # of internal kmalloc errors. These
 104                                         * will likely cause an incomplete
 105                                         * scrub */
 106        __u64 uncorrectable_errors;     /* # of errors where either no intact
 107                                         * copy was found or the writeback
 108                                         * failed */
 109        __u64 corrected_errors;         /* # of errors corrected */
 110        __u64 last_physical;            /* last physical address scrubbed. In
 111                                         * case a scrub was aborted, this can
 112                                         * be used to restart the scrub */
 113        __u64 unverified_errors;        /* # of occurences where a read for a
 114                                         * full (64k) bio failed, but the re-
 115                                         * check succeeded for each 4k piece.
 116                                         * Intermittent error. */
 117};
 118
 119#define BTRFS_SCRUB_READONLY    1
 120struct btrfs_ioctl_scrub_args {
 121        __u64 devid;                            /* in */
 122        __u64 start;                            /* in */
 123        __u64 end;                              /* in */
 124        __u64 flags;                            /* in */
 125        struct btrfs_scrub_progress progress;   /* out */
 126        /* pad to 1k */
 127        __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
 128};
 129
 130#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS    0
 131#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID     1
 132struct btrfs_ioctl_dev_replace_start_params {
 133        __u64 srcdevid; /* in, if 0, use srcdev_name instead */
 134        __u64 cont_reading_from_srcdev_mode;    /* in, see #define
 135                                                 * above */
 136        __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];       /* in */
 137        __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];       /* in */
 138};
 139
 140#define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED     0
 141#define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED           1
 142#define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED          2
 143#define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED          3
 144#define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED         4
 145struct btrfs_ioctl_dev_replace_status_params {
 146        __u64 replace_state;    /* out, see #define above */
 147        __u64 progress_1000;    /* out, 0 <= x <= 1000 */
 148        __u64 time_started;     /* out, seconds since 1-Jan-1970 */
 149        __u64 time_stopped;     /* out, seconds since 1-Jan-1970 */
 150        __u64 num_write_errors; /* out */
 151        __u64 num_uncorrectable_read_errors;    /* out */
 152};
 153
 154#define BTRFS_IOCTL_DEV_REPLACE_CMD_START                       0
 155#define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS                      1
 156#define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL                      2
 157#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR                 0
 158#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED              1
 159#define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED          2
 160#define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS         3
 161struct btrfs_ioctl_dev_replace_args {
 162        __u64 cmd;      /* in */
 163        __u64 result;   /* out */
 164
 165        union {
 166                struct btrfs_ioctl_dev_replace_start_params start;
 167                struct btrfs_ioctl_dev_replace_status_params status;
 168        };      /* in/out */
 169
 170        __u64 spare[64];
 171};
 172
 173struct btrfs_ioctl_dev_info_args {
 174        __u64 devid;                            /* in/out */
 175        __u8 uuid[BTRFS_UUID_SIZE];             /* in/out */
 176        __u64 bytes_used;                       /* out */
 177        __u64 total_bytes;                      /* out */
 178        __u64 unused[379];                      /* pad to 4k */
 179        __u8 path[BTRFS_DEVICE_PATH_NAME_MAX];  /* out */
 180};
 181
 182struct btrfs_ioctl_fs_info_args {
 183        __u64 max_id;                           /* out */
 184        __u64 num_devices;                      /* out */
 185        __u8 fsid[BTRFS_FSID_SIZE];             /* out */
 186        __u32 nodesize;                         /* out */
 187        __u32 sectorsize;                       /* out */
 188        __u32 clone_alignment;                  /* out */
 189        __u32 reserved32;
 190        __u64 reserved[122];                    /* pad to 1k */
 191};
 192
 193struct btrfs_ioctl_feature_flags {
 194        __u64 compat_flags;
 195        __u64 compat_ro_flags;
 196        __u64 incompat_flags;
 197};
 198
 199/* balance control ioctl modes */
 200#define BTRFS_BALANCE_CTL_PAUSE         1
 201#define BTRFS_BALANCE_CTL_CANCEL        2
 202
 203/*
 204 * this is packed, because it should be exactly the same as its disk
 205 * byte order counterpart (struct btrfs_disk_balance_args)
 206 */
 207struct btrfs_balance_args {
 208        __u64 profiles;
 209        union {
 210                __le64 usage;
 211                struct {
 212                        __le32 usage_min;
 213                        __le32 usage_max;
 214                };
 215        };
 216        __u64 devid;
 217        __u64 pstart;
 218        __u64 pend;
 219        __u64 vstart;
 220        __u64 vend;
 221
 222        __u64 target;
 223
 224        __u64 flags;
 225
 226        /*
 227         * BTRFS_BALANCE_ARGS_LIMIT with value 'limit'
 228         * BTRFS_BALANCE_ARGS_LIMIT_RANGE - the extend version can use minimum
 229         * and maximum
 230         */
 231        union {
 232                __u64 limit;            /* limit number of processed chunks */
 233                struct {
 234                        __u32 limit_min;
 235                        __u32 limit_max;
 236                };
 237        };
 238
 239        /*
 240         * Process chunks that cross stripes_min..stripes_max devices,
 241         * BTRFS_BALANCE_ARGS_STRIPES_RANGE
 242         */
 243        __le32 stripes_min;
 244        __le32 stripes_max;
 245
 246        __u64 unused[6];
 247} __attribute__ ((__packed__));
 248
 249/* report balance progress to userspace */
 250struct btrfs_balance_progress {
 251        __u64 expected;         /* estimated # of chunks that will be
 252                                 * relocated to fulfill the request */
 253        __u64 considered;       /* # of chunks we have considered so far */
 254        __u64 completed;        /* # of chunks relocated so far */
 255};
 256
 257#define BTRFS_BALANCE_STATE_RUNNING     (1ULL << 0)
 258#define BTRFS_BALANCE_STATE_PAUSE_REQ   (1ULL << 1)
 259#define BTRFS_BALANCE_STATE_CANCEL_REQ  (1ULL << 2)
 260
 261struct btrfs_ioctl_balance_args {
 262        __u64 flags;                            /* in/out */
 263        __u64 state;                            /* out */
 264
 265        struct btrfs_balance_args data;         /* in/out */
 266        struct btrfs_balance_args meta;         /* in/out */
 267        struct btrfs_balance_args sys;          /* in/out */
 268
 269        struct btrfs_balance_progress stat;     /* out */
 270
 271        __u64 unused[72];                       /* pad to 1k */
 272};
 273
 274#define BTRFS_INO_LOOKUP_PATH_MAX 4080
 275struct btrfs_ioctl_ino_lookup_args {
 276        __u64 treeid;
 277        __u64 objectid;
 278        char name[BTRFS_INO_LOOKUP_PATH_MAX];
 279};
 280
 281struct btrfs_ioctl_search_key {
 282        /* which root are we searching.  0 is the tree of tree roots */
 283        __u64 tree_id;
 284
 285        /* keys returned will be >= min and <= max */
 286        __u64 min_objectid;
 287        __u64 max_objectid;
 288
 289        /* keys returned will be >= min and <= max */
 290        __u64 min_offset;
 291        __u64 max_offset;
 292
 293        /* max and min transids to search for */
 294        __u64 min_transid;
 295        __u64 max_transid;
 296
 297        /* keys returned will be >= min and <= max */
 298        __u32 min_type;
 299        __u32 max_type;
 300
 301        /*
 302         * how many items did userland ask for, and how many are we
 303         * returning
 304         */
 305        __u32 nr_items;
 306
 307        /* align to 64 bits */
 308        __u32 unused;
 309
 310        /* some extra for later */
 311        __u64 unused1;
 312        __u64 unused2;
 313        __u64 unused3;
 314        __u64 unused4;
 315};
 316
 317struct btrfs_ioctl_search_header {
 318        __u64 transid;
 319        __u64 objectid;
 320        __u64 offset;
 321        __u32 type;
 322        __u32 len;
 323};
 324
 325#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
 326/*
 327 * the buf is an array of search headers where
 328 * each header is followed by the actual item
 329 * the type field is expanded to 32 bits for alignment
 330 */
 331struct btrfs_ioctl_search_args {
 332        struct btrfs_ioctl_search_key key;
 333        char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
 334};
 335
 336struct btrfs_ioctl_search_args_v2 {
 337        struct btrfs_ioctl_search_key key; /* in/out - search parameters */
 338        __u64 buf_size;            /* in - size of buffer
 339                                            * out - on EOVERFLOW: needed size
 340                                            *       to store item */
 341        __u64 buf[0];                       /* out - found items */
 342};
 343
 344struct btrfs_ioctl_clone_range_args {
 345  __s64 src_fd;
 346  __u64 src_offset, src_length;
 347  __u64 dest_offset;
 348};
 349
 350/* flags for the defrag range ioctl */
 351#define BTRFS_DEFRAG_RANGE_COMPRESS 1
 352#define BTRFS_DEFRAG_RANGE_START_IO 2
 353
 354#define BTRFS_SAME_DATA_DIFFERS 1
 355/* For extent-same ioctl */
 356struct btrfs_ioctl_same_extent_info {
 357        __s64 fd;               /* in - destination file */
 358        __u64 logical_offset;   /* in - start of extent in destination */
 359        __u64 bytes_deduped;    /* out - total # of bytes we were able
 360                                 * to dedupe from this file */
 361        /* status of this dedupe operation:
 362         * 0 if dedup succeeds
 363         * < 0 for error
 364         * == BTRFS_SAME_DATA_DIFFERS if data differs
 365         */
 366        __s32 status;           /* out - see above description */
 367        __u32 reserved;
 368};
 369
 370struct btrfs_ioctl_same_args {
 371        __u64 logical_offset;   /* in - start of extent in source */
 372        __u64 length;           /* in - length of extent */
 373        __u16 dest_count;       /* in - total elements in info array */
 374        __u16 reserved1;
 375        __u32 reserved2;
 376        struct btrfs_ioctl_same_extent_info info[0];
 377};
 378
 379struct btrfs_ioctl_space_info {
 380        __u64 flags;
 381        __u64 total_bytes;
 382        __u64 used_bytes;
 383};
 384
 385struct btrfs_ioctl_space_args {
 386        __u64 space_slots;
 387        __u64 total_spaces;
 388        struct btrfs_ioctl_space_info spaces[0];
 389};
 390
 391struct btrfs_data_container {
 392        __u32   bytes_left;     /* out -- bytes not needed to deliver output */
 393        __u32   bytes_missing;  /* out -- additional bytes needed for result */
 394        __u32   elem_cnt;       /* out */
 395        __u32   elem_missed;    /* out */
 396        __u64   val[0];         /* out */
 397};
 398
 399struct btrfs_ioctl_ino_path_args {
 400        __u64                           inum;           /* in */
 401        __u64                           size;           /* in */
 402        __u64                           reserved[4];
 403        /* struct btrfs_data_container  *fspath;           out */
 404        __u64                           fspath;         /* out */
 405};
 406
 407struct btrfs_ioctl_logical_ino_args {
 408        __u64                           logical;        /* in */
 409        __u64                           size;           /* in */
 410        __u64                           reserved[4];
 411        /* struct btrfs_data_container  *inodes;        out   */
 412        __u64                           inodes;
 413};
 414
 415enum btrfs_dev_stat_values {
 416        /* disk I/O failure stats */
 417        BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
 418        BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
 419        BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
 420
 421        /* stats for indirect indications for I/O failures */
 422        BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
 423                                         * contents is illegal: this is an
 424                                         * indication that the block was damaged
 425                                         * during read or write, or written to
 426                                         * wrong location or read from wrong
 427                                         * location */
 428        BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
 429                                         * been written */
 430
 431        BTRFS_DEV_STAT_VALUES_MAX
 432};
 433
 434/* Reset statistics after reading; needs SYS_ADMIN capability */
 435#define BTRFS_DEV_STATS_RESET           (1ULL << 0)
 436
 437struct btrfs_ioctl_get_dev_stats {
 438        __u64 devid;                            /* in */
 439        __u64 nr_items;                         /* in/out */
 440        __u64 flags;                            /* in/out */
 441
 442        /* out values: */
 443        __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
 444
 445        __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
 446};
 447
 448#define BTRFS_QUOTA_CTL_ENABLE  1
 449#define BTRFS_QUOTA_CTL_DISABLE 2
 450#define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3
 451struct btrfs_ioctl_quota_ctl_args {
 452        __u64 cmd;
 453        __u64 status;
 454};
 455
 456struct btrfs_ioctl_quota_rescan_args {
 457        __u64   flags;
 458        __u64   progress;
 459        __u64   reserved[6];
 460};
 461
 462struct btrfs_ioctl_qgroup_assign_args {
 463        __u64 assign;
 464        __u64 src;
 465        __u64 dst;
 466};
 467
 468struct btrfs_ioctl_qgroup_create_args {
 469        __u64 create;
 470        __u64 qgroupid;
 471};
 472struct btrfs_ioctl_timespec {
 473        __u64 sec;
 474        __u32 nsec;
 475};
 476
 477struct btrfs_ioctl_received_subvol_args {
 478        char    uuid[BTRFS_UUID_SIZE];  /* in */
 479        __u64   stransid;               /* in */
 480        __u64   rtransid;               /* out */
 481        struct btrfs_ioctl_timespec stime; /* in */
 482        struct btrfs_ioctl_timespec rtime; /* out */
 483        __u64   flags;                  /* in */
 484        __u64   reserved[16];           /* in */
 485};
 486
 487/*
 488 * Caller doesn't want file data in the send stream, even if the
 489 * search of clone sources doesn't find an extent. UPDATE_EXTENT
 490 * commands will be sent instead of WRITE commands.
 491 */
 492#define BTRFS_SEND_FLAG_NO_FILE_DATA            0x1
 493
 494/*
 495 * Do not add the leading stream header. Used when multiple snapshots
 496 * are sent back to back.
 497 */
 498#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER      0x2
 499
 500/*
 501 * Omit the command at the end of the stream that indicated the end
 502 * of the stream. This option is used when multiple snapshots are
 503 * sent back to back.
 504 */
 505#define BTRFS_SEND_FLAG_OMIT_END_CMD            0x4
 506
 507#define BTRFS_SEND_FLAG_MASK \
 508        (BTRFS_SEND_FLAG_NO_FILE_DATA | \
 509         BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
 510         BTRFS_SEND_FLAG_OMIT_END_CMD)
 511
 512struct btrfs_ioctl_send_args {
 513        __s64 send_fd;                  /* in */
 514        __u64 clone_sources_count;      /* in */
 515        __u64 __user *clone_sources;    /* in */
 516        __u64 parent_root;              /* in */
 517        __u64 flags;                    /* in */
 518        __u64 reserved[4];              /* in */
 519};
 520
 521/* Error codes as returned by the kernel */
 522enum btrfs_err_code {
 523        BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET = 1,
 524        BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
 525        BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
 526        BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
 527        BTRFS_ERROR_DEV_TGT_REPLACE,
 528        BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
 529        BTRFS_ERROR_DEV_ONLY_WRITABLE,
 530        BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
 531};
 532/* An error code to error string mapping for the kernel
 533*  error codes
 534*/
 535static inline char *btrfs_err_str(enum btrfs_err_code err_code)
 536{
 537        switch (err_code) {
 538                case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
 539                        return "unable to go below two devices on raid1";
 540                case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
 541                        return "unable to go below four devices on raid10";
 542                case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
 543                        return "unable to go below two devices on raid5";
 544                case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
 545                        return "unable to go below three devices on raid6";
 546                case BTRFS_ERROR_DEV_TGT_REPLACE:
 547                        return "unable to remove the dev_replace target dev";
 548                case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
 549                        return "no missing devices found to remove";
 550                case BTRFS_ERROR_DEV_ONLY_WRITABLE:
 551                        return "unable to remove the only writeable device";
 552                case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
 553                        return "add/delete/balance/replace/resize operation "\
 554                                "in progress";
 555                default:
 556                        return NULL;
 557        }
 558}
 559
 560#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
 561                                   struct btrfs_ioctl_vol_args)
 562#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
 563                                   struct btrfs_ioctl_vol_args)
 564#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
 565                                   struct btrfs_ioctl_vol_args)
 566#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
 567                                   struct btrfs_ioctl_vol_args)
 568/* trans start and trans end are dangerous, and only for
 569 * use by applications that know how to avoid the
 570 * resulting deadlocks
 571 */
 572#define BTRFS_IOC_TRANS_START  _IO(BTRFS_IOCTL_MAGIC, 6)
 573#define BTRFS_IOC_TRANS_END    _IO(BTRFS_IOCTL_MAGIC, 7)
 574#define BTRFS_IOC_SYNC         _IO(BTRFS_IOCTL_MAGIC, 8)
 575
 576#define BTRFS_IOC_CLONE        _IOW(BTRFS_IOCTL_MAGIC, 9, int)
 577#define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
 578                                   struct btrfs_ioctl_vol_args)
 579#define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
 580                                   struct btrfs_ioctl_vol_args)
 581#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
 582                                   struct btrfs_ioctl_vol_args)
 583
 584#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
 585                                  struct btrfs_ioctl_clone_range_args)
 586
 587#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
 588                                   struct btrfs_ioctl_vol_args)
 589#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
 590                                struct btrfs_ioctl_vol_args)
 591#define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
 592                                struct btrfs_ioctl_defrag_range_args)
 593#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
 594                                   struct btrfs_ioctl_search_args)
 595#define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
 596                                           struct btrfs_ioctl_search_args_v2)
 597#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
 598                                   struct btrfs_ioctl_ino_lookup_args)
 599#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
 600#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
 601                                    struct btrfs_ioctl_space_args)
 602#define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
 603#define BTRFS_IOC_WAIT_SYNC  _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
 604#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
 605                                   struct btrfs_ioctl_vol_args_v2)
 606#define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
 607                                   struct btrfs_ioctl_vol_args_v2)
 608#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
 609#define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
 610#define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
 611                              struct btrfs_ioctl_scrub_args)
 612#define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
 613#define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
 614                                       struct btrfs_ioctl_scrub_args)
 615#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
 616                                 struct btrfs_ioctl_dev_info_args)
 617#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
 618                               struct btrfs_ioctl_fs_info_args)
 619#define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
 620                                   struct btrfs_ioctl_balance_args)
 621#define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
 622#define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
 623                                        struct btrfs_ioctl_balance_args)
 624#define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
 625                                        struct btrfs_ioctl_ino_path_args)
 626#define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
 627                                        struct btrfs_ioctl_ino_path_args)
 628#define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
 629                                struct btrfs_ioctl_received_subvol_args)
 630#define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
 631#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
 632                                     struct btrfs_ioctl_vol_args)
 633#define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
 634                               struct btrfs_ioctl_quota_ctl_args)
 635#define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
 636                               struct btrfs_ioctl_qgroup_assign_args)
 637#define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
 638                               struct btrfs_ioctl_qgroup_create_args)
 639#define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
 640                               struct btrfs_ioctl_qgroup_limit_args)
 641#define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
 642                               struct btrfs_ioctl_quota_rescan_args)
 643#define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
 644                               struct btrfs_ioctl_quota_rescan_args)
 645#define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
 646#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
 647                                   char[BTRFS_LABEL_SIZE])
 648#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
 649                                   char[BTRFS_LABEL_SIZE])
 650#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
 651                                      struct btrfs_ioctl_get_dev_stats)
 652#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
 653                                    struct btrfs_ioctl_dev_replace_args)
 654#define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
 655                                         struct btrfs_ioctl_same_args)
 656#define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
 657                                   struct btrfs_ioctl_feature_flags)
 658#define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
 659                                   struct btrfs_ioctl_feature_flags[2])
 660#define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
 661                                   struct btrfs_ioctl_feature_flags[3])
 662
 663#endif /* _UAPI_LINUX_BTRFS_H */
 664