ioctl.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 __IOCTL_
  20 #define __IOCTL_
  21 #include <asm/types.h>
  22 #include <linux/ioctl.h>
  23 #include <time.h>
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28
  29 #define BTRFS_IOCTL_MAGIC 0x94
  30 #define BTRFS_VOL_NAME_MAX 255
  31
  32 /* this should be 4k */
  33 #define BTRFS_PATH_NAME_MAX 4087
  34 struct btrfs_ioctl_vol_args {
  35         __s64 fd;
  36         char name[BTRFS_PATH_NAME_MAX + 1];
  37 };
  38
  39 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
  40
  41 #define BTRFS_SUBVOL_CREATE_ASYNC       (1ULL << 0)
  42 #define BTRFS_SUBVOL_RDONLY             (1ULL << 1)
  43 #define BTRFS_SUBVOL_QGROUP_INHERIT     (1ULL << 2)
  44
  45 #define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
  46
  47 struct btrfs_qgroup_limit {
  48         __u64   flags;
  49         __u64   max_referenced;
  50         __u64   max_exclusive;
  51         __u64   rsv_referenced;
  52         __u64   rsv_exclusive;
  53 };
  54
  55 struct btrfs_qgroup_inherit {
  56         __u64   flags;
  57         __u64   num_qgroups;
  58         __u64   num_ref_copies;
  59         __u64   num_excl_copies;
  60         struct btrfs_qgroup_limit lim;
  61         __u64   qgroups[0];
  62 };
  63
  64 struct btrfs_ioctl_qgroup_limit_args {
  65         __u64   qgroupid;
  66         struct btrfs_qgroup_limit lim;
  67 };
  68
  69 #define BTRFS_SUBVOL_NAME_MAX 4039
  70
  71 struct btrfs_ioctl_vol_args_v2 {
  72         __s64 fd;
  73         __u64 transid;
  74         __u64 flags;
  75         union {
  76                 struct {
  77                         __u64 size;
  78                         struct btrfs_qgroup_inherit *qgroup_inherit;
  79                 };
  80                 __u64 unused[4];
  81         };
  82         char name[BTRFS_SUBVOL_NAME_MAX + 1];
  83 };
  84
  85 #define BTRFS_FSID_SIZE 16
  86 #define BTRFS_UUID_SIZE 16
  87
  88 struct btrfs_scrub_progress {
  89         __u64 data_extents_scrubbed;
  90         __u64 tree_extents_scrubbed;
  91         __u64 data_bytes_scrubbed;
  92         __u64 tree_bytes_scrubbed;
  93         __u64 read_errors;
  94         __u64 csum_errors;
  95         __u64 verify_errors;
  96         __u64 no_csum;
  97         __u64 csum_discards;
  98         __u64 super_errors;
  99         __u64 malloc_errors;
 100         __u64 uncorrectable_errors;
 101         __u64 corrected_errors;
 102         __u64 last_physical;
 103         __u64 unverified_errors;
 104 };
 105
 106 #define BTRFS_SCRUB_READONLY    1
 107 struct btrfs_ioctl_scrub_args {
 108         __u64 devid;                            /* in */
 109         __u64 start;                            /* in */
 110         __u64 end;                              /* in */
 111         __u64 flags;                            /* in */
 112         struct btrfs_scrub_progress progress;   /* out */
 113         /* pad to 1k */
 114         __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8];
 115 };
 116
 117 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS    0
 118 #define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID     1
 119 struct btrfs_ioctl_dev_replace_start_params {
 120         __u64 srcdevid; /* in, if 0, use srcdev_name instead */
 121         __u64 cont_reading_from_srcdev_mode;    /* in, see #define
 122                                                  * above */
 123         __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];       /* in */
 124         __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1];       /* in */
 125 };
 126
 127 #define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED     0
 128 #define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED           1
 129 #define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED          2
 130 #define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED          3
 131 #define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED         4
 132 struct btrfs_ioctl_dev_replace_status_params {
 133         __u64 replace_state;    /* out, see #define above */
 134         __u64 progress_1000;    /* out, 0 <= x <= 1000 */
 135         __u64 time_started;     /* out, seconds since 1-Jan-1970 */
 136         __u64 time_stopped;     /* out, seconds since 1-Jan-1970 */
 137         __u64 num_write_errors; /* out */
 138         __u64 num_uncorrectable_read_errors;    /* out */
 139 };
 140
 141 #define BTRFS_IOCTL_DEV_REPLACE_CMD_START                       0
 142 #define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS                      1
 143 #define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL                      2
 144 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR                 0
 145 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED              1
 146 #define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED          2
 147 struct btrfs_ioctl_dev_replace_args {
 148         __u64 cmd;      /* in */
 149         __u64 result;   /* out */
 150
 151         union {
 152                 struct btrfs_ioctl_dev_replace_start_params start;
 153                 struct btrfs_ioctl_dev_replace_status_params status;
 154         };      /* in/out */
 155
 156         __u64 spare[64];
 157 };
 158
 159 struct btrfs_ioctl_dev_info_args {
 160         __u64 devid;                            /* in/out */
 161         __u8 uuid[BTRFS_UUID_SIZE];             /* in/out */
 162         __u64 bytes_used;                       /* out */
 163         __u64 total_bytes;                      /* out */
 164         __u64 unused[379];                      /* pad to 4k */
 165         __u8 path[BTRFS_DEVICE_PATH_NAME_MAX];  /* out */
 166 };
 167
 168 struct btrfs_ioctl_fs_info_args {
 169         __u64 max_id;                           /* out */
 170         __u64 num_devices;                      /* out */
 171         __u8 fsid[BTRFS_FSID_SIZE];             /* out */
 172         __u64 reserved[124];                    /* pad to 1k */
 173 };
 174
 175 /* balance control ioctl modes */
 176 #define BTRFS_BALANCE_CTL_PAUSE         1
 177 #define BTRFS_BALANCE_CTL_CANCEL        2
 178 #define BTRFS_BALANCE_CTL_RESUME        3
 179
 180 /*
 181  * this is packed, because it should be exactly the same as its disk
 182  * byte order counterpart (struct btrfs_disk_balance_args)
 183  */
 184 struct btrfs_balance_args {
 185         __u64 profiles;
 186         __u64 usage;
 187         __u64 devid;
 188         __u64 pstart;
 189         __u64 pend;
 190         __u64 vstart;
 191         __u64 vend;
 192
 193         __u64 target;
 194
 195         __u64 flags;
 196
 197         __u64 unused[8];
 198 } __attribute__ ((__packed__));
 199
 200 struct btrfs_balance_progress {
 201         __u64 expected;
 202         __u64 considered;
 203         __u64 completed;
 204 };
 205
 206 #define BTRFS_BALANCE_STATE_RUNNING     (1ULL << 0)
 207 #define BTRFS_BALANCE_STATE_PAUSE_REQ   (1ULL << 1)
 208 #define BTRFS_BALANCE_STATE_CANCEL_REQ  (1ULL << 2)
 209
 210 struct btrfs_ioctl_balance_args {
 211         __u64 flags;                            /* in/out */
 212         __u64 state;                            /* out */
 213
 214         struct btrfs_balance_args data;         /* in/out */
 215         struct btrfs_balance_args meta;         /* in/out */
 216         struct btrfs_balance_args sys;          /* in/out */
 217
 218         struct btrfs_balance_progress stat;     /* out */
 219
 220         __u64 unused[72];                       /* pad to 1k */
 221 };
 222
 223 struct btrfs_ioctl_search_key {
 224         /* which root are we searching.  0 is the tree of tree roots */
 225         __u64 tree_id;
 226
 227         /* keys returned will be >= min and <= max */
 228         __u64 min_objectid;
 229         __u64 max_objectid;
 230
 231         /* keys returned will be >= min and <= max */
 232         __u64 min_offset;
 233         __u64 max_offset;
 234
 235         /* max and min transids to search for */
 236         __u64 min_transid;
 237         __u64 max_transid;
 238
 239         /* keys returned will be >= min and <= max */
 240         __u32 min_type;
 241         __u32 max_type;
 242
 243         /*
 244          * how many items did userland ask for, and how many are we
 245          * returning
 246          */
 247         __u32 nr_items;
 248
 249         /* align to 64 bits */
 250         __u32 unused;
 251
 252         /* some extra for later */
 253         __u64 unused1;
 254         __u64 unused2;
 255         __u64 unused3;
 256         __u64 unused4;
 257 };
 258
 259 struct btrfs_ioctl_search_header {
 260         __u64 transid;
 261         __u64 objectid;
 262         __u64 offset;
 263         __u32 type;
 264         __u32 len;
 265 } __attribute__((may_alias));
 266
 267 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
 268 /*
 269  * the buf is an array of search headers where
 270  * each header is followed by the actual item
 271  * the type field is expanded to 32 bits for alignment
 272  */
 273 struct btrfs_ioctl_search_args {
 274         struct btrfs_ioctl_search_key key;
 275         char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
 276 };
 277
 278 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
 279 struct btrfs_ioctl_ino_lookup_args {
 280         __u64 treeid;
 281         __u64 objectid;
 282         char name[BTRFS_INO_LOOKUP_PATH_MAX];
 283 };
 284
 285 /* flags for the defrag range ioctl */
 286 #define BTRFS_DEFRAG_RANGE_COMPRESS 1
 287 #define BTRFS_DEFRAG_RANGE_START_IO 2
 288
 289 struct btrfs_ioctl_defrag_range_args {
 290         /* start of the defrag operation */
 291         __u64 start;
 292
 293         /* number of bytes to defrag, use (u64)-1 to say all */
 294         __u64 len;
 295
 296         /*
 297          * flags for the operation, which can include turning
 298          * on compression for this one defrag
 299          */
 300         __u64 flags;
 301
 302         /*
 303          * any extent bigger than this will be considered
 304          * already defragged.  Use 0 to take the kernel default
 305          * Use 1 to say every single extent must be rewritten
 306          */
 307         __u32 extent_thresh;
 308
 309         /*
 310          * which compression method to use if turning on compression
 311          * for this defrag operation.  If unspecified, zlib will
 312          * be used
 313          */
 314         __u32 compress_type;
 315
 316         /* spare for later */
 317         __u32 unused[4];
 318 };
 319
 320 struct btrfs_ioctl_space_info {
 321         __u64 flags;
 322         __u64 total_bytes;
 323         __u64 used_bytes;
 324 };
 325
 326 struct btrfs_ioctl_space_args {
 327         __u64 space_slots;
 328         __u64 total_spaces;
 329         struct btrfs_ioctl_space_info spaces[0];
 330 };
 331
 332 struct btrfs_data_container {
 333         __u32   bytes_left;     /* out -- bytes not needed to deliver output */
 334         __u32   bytes_missing;  /* out -- additional bytes needed for result */
 335         __u32   elem_cnt;       /* out */
 336         __u32   elem_missed;    /* out */
 337         __u64   val[0];         /* out */
 338 };
 339
 340 struct btrfs_ioctl_ino_path_args {
 341         __u64                           inum;           /* in */
 342         __u64                           size;           /* in */
 343         __u64                           reserved[4];
 344         /* struct btrfs_data_container  *fspath;           out */
 345         __u64                           fspath;         /* out */
 346 };
 347
 348 struct btrfs_ioctl_logical_ino_args {
 349         __u64                           logical;        /* in */
 350         __u64                           size;           /* in */
 351         __u64                           reserved[4];
 352         /* struct btrfs_data_container  *inodes;        out   */
 353         __u64                           inodes;
 354 };
 355
 356 struct btrfs_ioctl_timespec {
 357         __u64 sec;
 358         __u32 nsec;
 359 };
 360
 361 struct btrfs_ioctl_received_subvol_args {
 362         char    uuid[BTRFS_UUID_SIZE];  /* in */
 363         __u64   stransid;               /* in */
 364         __u64   rtransid;               /* out */
 365         struct btrfs_ioctl_timespec stime; /* in */
 366         struct btrfs_ioctl_timespec rtime; /* out */
 367         __u64   flags;                  /* in */
 368         __u64   reserved[16];           /* in */
 369 };
 370
 371 /*
 372  * Caller doesn't want file data in the send stream, even if the
 373  * search of clone sources doesn't find an extent. UPDATE_EXTENT
 374  * commands will be sent instead of WRITE commands.
 375  */
 376 #define BTRFS_SEND_FLAG_NO_FILE_DATA            0x1
 377
 378 /*
 379  * Do not add the leading stream header. Used when multiple snapshots
 380  * are sent back to back.
 381  */
 382 #define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER      0x2
 383
 384 /*
 385  * Omit the command at the end of the stream that indicated the end
 386  * of the stream. This option is used when multiple snapshots are
 387  * sent back to back.
 388  */
 389 #define BTRFS_SEND_FLAG_OMIT_END_CMD            0x4
 390
 391 struct btrfs_ioctl_send_args {
 392         __s64 send_fd;                  /* in */
 393         __u64 clone_sources_count;      /* in */
 394         __u64 *clone_sources;           /* in */
 395         __u64 parent_root;              /* in */
 396         __u64 flags;                    /* in */
 397         __u64 reserved[4];              /* in */
 398 };
 399
 400 enum btrfs_dev_stat_values {
 401         /* disk I/O failure stats */
 402         BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
 403         BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
 404         BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
 405
 406         /* stats for indirect indications for I/O failures */
 407         BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
 408                                          * contents is illegal: this is an
 409                                          * indication that the block was damaged
 410                                          * during read or write, or written to
 411                                          * wrong location or read from wrong
 412                                          * location */
 413         BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
 414                                          * been written */
 415
 416         BTRFS_DEV_STAT_VALUES_MAX
 417 };
 418
 419 /* Reset statistics after reading; needs SYS_ADMIN capability */
 420 #define BTRFS_DEV_STATS_RESET           (1ULL << 0)
 421
 422 struct btrfs_ioctl_get_dev_stats {
 423         __u64 devid;                            /* in */
 424         __u64 nr_items;                         /* in/out */
 425         __u64 flags;                            /* in/out */
 426
 427         /* out values: */
 428         __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
 429
 430         __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
 431 };
 432
 433 /* BTRFS_IOC_SNAP_CREATE is no longer used by the btrfs command */
 434 #define BTRFS_QUOTA_CTL_ENABLE  1
 435 #define BTRFS_QUOTA_CTL_DISABLE 2
 436 /* 3 has formerly been reserved for BTRFS_QUOTA_CTL_RESCAN */
 437 struct btrfs_ioctl_quota_ctl_args {
 438         __u64 cmd;
 439         __u64 status;
 440 };
 441
 442 struct btrfs_ioctl_quota_rescan_args {
 443         __u64   flags;
 444         __u64   progress;
 445         __u64   reserved[6];
 446 };
 447
 448 struct btrfs_ioctl_qgroup_assign_args {
 449         __u64 assign;
 450         __u64 src;
 451         __u64 dst;
 452 };
 453
 454 struct btrfs_ioctl_qgroup_create_args {
 455         __u64 create;
 456         __u64 qgroupid;
 457 };
 458
 459 /* Error codes as returned by the kernel */
 460 enum btrfs_err_code {
 461         notused,
 462         BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
 463         BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
 464         BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
 465         BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
 466         BTRFS_ERROR_DEV_TGT_REPLACE,
 467         BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
 468         BTRFS_ERROR_DEV_ONLY_WRITABLE,
 469         BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
 470 };
 471
 472 /* An error code to error string mapping for the kernel
 473 *  error codes
 474 */
 475 static inline char *btrfs_err_str(enum btrfs_err_code err_code)
 476 {
 477         switch (err_code) {
 478                 case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
 479                         return "unable to go below two devices on raid1";
 480                 case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
 481                         return "unable to go below four devices on raid10";
 482                 case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
 483                         return "unable to go below three devices on raid5";
 484                 case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
 485                         return "unable to go below four devices on raid6";
 486                 case BTRFS_ERROR_DEV_TGT_REPLACE:
 487                         return "unable to remove the dev_replace target dev";
 488                 case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
 489                         return "no missing devices found to remove";
 490                 case BTRFS_ERROR_DEV_ONLY_WRITABLE:
 491                         return "unable to remove the only writeable device";
 492                 case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
 493                         return "add/delete/balance/replace/resize operation "
 494                                 "in progress";
 495                 default:
 496                         return NULL;
 497         }
 498 }
 499
 500 #define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
 501                                    struct btrfs_ioctl_vol_args)
 502 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
 503                                    struct btrfs_ioctl_vol_args)
 504 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
 505                                    struct btrfs_ioctl_vol_args)
 506 #define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
 507                                    struct btrfs_ioctl_vol_args)
 508
 509 struct btrfs_ioctl_clone_range_args {
 510         __s64 src_fd;
 511         __u64 src_offset, src_length;
 512         __u64 dest_offset;
 513 };
 514
 515 /* trans start and trans end are dangerous, and only for
 516  * use by applications that know how to avoid the
 517  * resulting deadlocks
 518  */
 519 #define BTRFS_IOC_TRANS_START  _IO(BTRFS_IOCTL_MAGIC, 6)
 520 #define BTRFS_IOC_TRANS_END    _IO(BTRFS_IOCTL_MAGIC, 7)
 521 #define BTRFS_IOC_SYNC         _IO(BTRFS_IOCTL_MAGIC, 8)
 522
 523 #define BTRFS_IOC_CLONE        _IOW(BTRFS_IOCTL_MAGIC, 9, int)
 524 #define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
 525                                    struct btrfs_ioctl_vol_args)
 526 #define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
 527                                    struct btrfs_ioctl_vol_args)
 528 #define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
 529                                    struct btrfs_ioctl_vol_args)
 530 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
 531                                    struct btrfs_ioctl_clone_range_args)
 532 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
 533                                    struct btrfs_ioctl_vol_args)
 534 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
 535                                    struct btrfs_ioctl_vol_args)
 536 #define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
 537                                 struct btrfs_ioctl_defrag_range_args)
 538 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
 539                                    struct btrfs_ioctl_search_args)
 540 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
 541                                    struct btrfs_ioctl_ino_lookup_args)
 542 #define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, u64)
 543 #define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
 544                                     struct btrfs_ioctl_space_args)
 545 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
 546                                    struct btrfs_ioctl_vol_args_v2)
 547 #define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
 548                                    struct btrfs_ioctl_vol_args_v2)
 549 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
 550 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
 551 #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
 552                                 struct btrfs_ioctl_scrub_args)
 553 #define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
 554 #define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
 555                                         struct btrfs_ioctl_scrub_args)
 556 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
 557                                         struct btrfs_ioctl_dev_info_args)
 558 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
 559                                  struct btrfs_ioctl_fs_info_args)
 560 #define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
 561                                    struct btrfs_ioctl_balance_args)
 562 #define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
 563 #define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
 564                                         struct btrfs_ioctl_balance_args)
 565 #define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
 566                                         struct btrfs_ioctl_ino_path_args)
 567 #define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
 568                                         struct btrfs_ioctl_ino_path_args)
 569 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
 570                                      struct btrfs_ioctl_vol_args)
 571 #define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
 572                                 struct btrfs_ioctl_received_subvol_args)
 573 #define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
 574
 575 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
 576                                         struct btrfs_ioctl_quota_ctl_args)
 577 #define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
 578                                         struct btrfs_ioctl_qgroup_assign_args)
 579 #define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
 580                                         struct btrfs_ioctl_qgroup_create_args)
 581 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
 582                                         struct btrfs_ioctl_qgroup_limit_args)
 583 #define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
 584                                struct btrfs_ioctl_quota_rescan_args)
 585 #define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
 586                                struct btrfs_ioctl_quota_rescan_args)
 587 #define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
 588 #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
 589                                    char[BTRFS_LABEL_SIZE])
 590 #define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
 591                                    char[BTRFS_LABEL_SIZE])
 592 #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
 593                                       struct btrfs_ioctl_get_dev_stats)
 594 #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
 595                                     struct btrfs_ioctl_dev_replace_args)
 596 #ifdef __cplusplus
 597 }
 598 #endif
 599
 600 #endif