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