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
 160struct btrfs_ioctl_dev_replace_args {
 161        __u64 cmd;      /* in */
 162        __u64 result;   /* out */
 163
 164        union {
 165                struct btrfs_ioctl_dev_replace_start_params start;
 166                struct btrfs_ioctl_dev_replace_status_params status;
 167        };      /* in/out */
 168
 169        __u64 spare[64];
 170};
 171
 172struct btrfs_ioctl_dev_info_args {
 173        __u64 devid;                            /* in/out */
 174        __u8 uuid[BTRFS_UUID_SIZE];             /* in/out */
 175        __u64 bytes_used;                       /* out */
 176        __u64 total_bytes;                      /* out */
 177        __u64 unused[379];                      /* pad to 4k */
 178        __u8 path[BTRFS_DEVICE_PATH_NAME_MAX];  /* out */
 179};
 180
 181struct btrfs_ioctl_fs_info_args {
 182        __u64 max_id;                           /* out */
 183        __u64 num_devices;                      /* out */
 184        __u8 fsid[BTRFS_FSID_SIZE];             /* out */
 185        __u32 nodesize;                         /* out */
 186        __u32 sectorsize;                       /* out */
 187        __u32 clone_alignment;                  /* out */
 188        __u32 reserved32;
 189        __u64 reserved[122];                    /* pad to 1k */
 190};
 191
 192struct btrfs_ioctl_feature_flags {
 193        __u64 compat_flags;
 194        __u64 compat_ro_flags;
 195        __u64 incompat_flags;
 196};
 197
 198/* balance control ioctl modes */
 199#define BTRFS_BALANCE_CTL_PAUSE         1
 200#define BTRFS_BALANCE_CTL_CANCEL        2
 201
 202/*
 203 * this is packed, because it should be exactly the same as its disk
 204 * byte order counterpart (struct btrfs_disk_balance_args)
 205 */
 206struct btrfs_balance_args {
 207        __u64 profiles;
 208        __u64 usage;
 209        __u64 devid;
 210        __u64 pstart;
 211        __u64 pend;
 212        __u64 vstart;
 213        __u64 vend;
 214
 215        __u64 target;
 216
 217        __u64 flags;
 218
 219        __u64 limit;            /* limit number of processed chunks */
 220        __u64 unused[7];
 221} __attribute__ ((__packed__));
 222
 223/* report balance progress to userspace */
 224struct btrfs_balance_progress {
 225        __u64 expected;         /* estimated # of chunks that will be
 226                                 * relocated to fulfill the request */
 227        __u64 considered;       /* # of chunks we have considered so far */
 228        __u64 completed;        /* # of chunks relocated so far */
 229};
 230
 231#define BTRFS_BALANCE_STATE_RUNNING     (1ULL << 0)
 232#define BTRFS_BALANCE_STATE_PAUSE_REQ   (1ULL << 1)
 233#define BTRFS_BALANCE_STATE_CANCEL_REQ  (1ULL << 2)
 234
 235struct btrfs_ioctl_balance_args {
 236        __u64 flags;                            /* in/out */
 237        __u64 state;                            /* out */
 238
 239        struct btrfs_balance_args data;         /* in/out */
 240        struct btrfs_balance_args meta;         /* in/out */
 241        struct btrfs_balance_args sys;          /* in/out */
 242
 243        struct btrfs_balance_progress stat;     /* out */
 244
 245        __u64 unused[72];                       /* pad to 1k */
 246};
 247
 248#define BTRFS_INO_LOOKUP_PATH_MAX 4080
 249struct btrfs_ioctl_ino_lookup_args {
 250        __u64 treeid;
 251        __u64 objectid;
 252        char name[BTRFS_INO_LOOKUP_PATH_MAX];
 253};
 254
 255struct btrfs_ioctl_search_key {
 256        /* which root are we searching.  0 is the tree of tree roots */
 257        __u64 tree_id;
 258
 259        /* keys returned will be >= min and <= max */
 260        __u64 min_objectid;
 261        __u64 max_objectid;
 262
 263        /* keys returned will be >= min and <= max */
 264        __u64 min_offset;
 265        __u64 max_offset;
 266
 267        /* max and min transids to search for */
 268        __u64 min_transid;
 269        __u64 max_transid;
 270
 271        /* keys returned will be >= min and <= max */
 272        __u32 min_type;
 273        __u32 max_type;
 274
 275        /*
 276         * how many items did userland ask for, and how many are we
 277         * returning
 278         */
 279        __u32 nr_items;
 280
 281        /* align to 64 bits */
 282        __u32 unused;
 283
 284        /* some extra for later */
 285        __u64 unused1;
 286        __u64 unused2;
 287        __u64 unused3;
 288        __u64 unused4;
 289};
 290
 291struct btrfs_ioctl_search_header {
 292        __u64 transid;
 293        __u64 objectid;
 294        __u64 offset;
 295        __u32 type;
 296        __u32 len;
 297};
 298
 299#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
 300/*
 301 * the buf is an array of search headers where
 302 * each header is followed by the actual item
 303 * the type field is expanded to 32 bits for alignment
 304 */
 305struct btrfs_ioctl_search_args {
 306        struct btrfs_ioctl_search_key key;
 307        char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
 308};
 309
 310struct btrfs_ioctl_search_args_v2 {
 311        struct btrfs_ioctl_search_key key; /* in/out - search parameters */
 312        __u64 buf_size;            /* in - size of buffer
 313                                            * out - on EOVERFLOW: needed size
 314                                            *       to store item */
 315        __u64 buf[0];                       /* out - found items */
 316};
 317
 318struct btrfs_ioctl_clone_range_args {
 319  __s64 src_fd;
 320  __u64 src_offset, src_length;
 321  __u64 dest_offset;
 322};
 323
 324/* flags for the defrag range ioctl */
 325#define BTRFS_DEFRAG_RANGE_COMPRESS 1
 326#define BTRFS_DEFRAG_RANGE_START_IO 2
 327
 328#define BTRFS_SAME_DATA_DIFFERS 1
 329/* For extent-same ioctl */
 330struct btrfs_ioctl_same_extent_info {
 331        __s64 fd;               /* in - destination file */
 332        __u64 logical_offset;   /* in - start of extent in destination */
 333        __u64 bytes_deduped;    /* out - total # of bytes we were able
 334                                 * to dedupe from this file */
 335        /* status of this dedupe operation:
 336         * 0 if dedup succeeds
 337         * < 0 for error
 338         * == BTRFS_SAME_DATA_DIFFERS if data differs
 339         */
 340        __s32 status;           /* out - see above description */
 341        __u32 reserved;
 342};
 343
 344struct btrfs_ioctl_same_args {
 345        __u64 logical_offset;   /* in - start of extent in source */
 346        __u64 length;           /* in - length of extent */
 347        __u16 dest_count;       /* in - total elements in info array */
 348        __u16 reserved1;
 349        __u32 reserved2;
 350        struct btrfs_ioctl_same_extent_info info[0];
 351};
 352
 353struct btrfs_ioctl_space_info {
 354        __u64 flags;
 355        __u64 total_bytes;
 356        __u64 used_bytes;
 357};
 358
 359struct btrfs_ioctl_space_args {
 360        __u64 space_slots;
 361        __u64 total_spaces;
 362        struct btrfs_ioctl_space_info spaces[0];
 363};
 364
 365struct btrfs_data_container {
 366        __u32   bytes_left;     /* out -- bytes not needed to deliver output */
 367        __u32   bytes_missing;  /* out -- additional bytes needed for result */
 368        __u32   elem_cnt;       /* out */
 369        __u32   elem_missed;    /* out */
 370        __u64   val[0];         /* out */
 371};
 372
 373struct btrfs_ioctl_ino_path_args {
 374        __u64                           inum;           /* in */
 375        __u64                           size;           /* in */
 376        __u64                           reserved[4];
 377        /* struct btrfs_data_container  *fspath;           out */
 378        __u64                           fspath;         /* out */
 379};
 380
 381struct btrfs_ioctl_logical_ino_args {
 382        __u64                           logical;        /* in */
 383        __u64                           size;           /* in */
 384        __u64                           reserved[4];
 385        /* struct btrfs_data_container  *inodes;        out   */
 386        __u64                           inodes;
 387};
 388
 389enum btrfs_dev_stat_values {
 390        /* disk I/O failure stats */
 391        BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
 392        BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
 393        BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
 394
 395        /* stats for indirect indications for I/O failures */
 396        BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
 397                                         * contents is illegal: this is an
 398                                         * indication that the block was damaged
 399                                         * during read or write, or written to
 400                                         * wrong location or read from wrong
 401                                         * location */
 402        BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
 403                                         * been written */
 404
 405        BTRFS_DEV_STAT_VALUES_MAX
 406};
 407
 408/* Reset statistics after reading; needs SYS_ADMIN capability */
 409#define BTRFS_DEV_STATS_RESET           (1ULL << 0)
 410
 411struct btrfs_ioctl_get_dev_stats {
 412        __u64 devid;                            /* in */
 413        __u64 nr_items;                         /* in/out */
 414        __u64 flags;                            /* in/out */
 415
 416        /* out values: */
 417        __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
 418
 419        __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
 420};
 421
 422#define BTRFS_QUOTA_CTL_ENABLE  1
 423#define BTRFS_QUOTA_CTL_DISABLE 2
 424#define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3
 425struct btrfs_ioctl_quota_ctl_args {
 426        __u64 cmd;
 427        __u64 status;
 428};
 429
 430struct btrfs_ioctl_quota_rescan_args {
 431        __u64   flags;
 432        __u64   progress;
 433        __u64   reserved[6];
 434};
 435
 436struct btrfs_ioctl_qgroup_assign_args {
 437        __u64 assign;
 438        __u64 src;
 439        __u64 dst;
 440};
 441
 442struct btrfs_ioctl_qgroup_create_args {
 443        __u64 create;
 444        __u64 qgroupid;
 445};
 446struct btrfs_ioctl_timespec {
 447        __u64 sec;
 448        __u32 nsec;
 449};
 450
 451struct btrfs_ioctl_received_subvol_args {
 452        char    uuid[BTRFS_UUID_SIZE];  /* in */
 453        __u64   stransid;               /* in */
 454        __u64   rtransid;               /* out */
 455        struct btrfs_ioctl_timespec stime; /* in */
 456        struct btrfs_ioctl_timespec rtime; /* out */
 457        __u64   flags;                  /* in */
 458        __u64   reserved[16];           /* in */
 459};
 460
 461/*
 462 * Caller doesn't want file data in the send stream, even if the
 463 * search of clone sources doesn't find an extent. UPDATE_EXTENT
 464 * commands will be sent instead of WRITE commands.
 465 */
 466#define BTRFS_SEND_FLAG_NO_FILE_DATA            0x1
 467
 468/*
 469 * Do not add the leading stream header. Used when multiple snapshots
 470 * are sent back to back.
 471 */
 472#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER      0x2
 473
 474/*
 475 * Omit the command at the end of the stream that indicated the end
 476 * of the stream. This option is used when multiple snapshots are
 477 * sent back to back.
 478 */
 479#define BTRFS_SEND_FLAG_OMIT_END_CMD            0x4
 480
 481#define BTRFS_SEND_FLAG_MASK \
 482        (BTRFS_SEND_FLAG_NO_FILE_DATA | \
 483         BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
 484         BTRFS_SEND_FLAG_OMIT_END_CMD)
 485
 486struct btrfs_ioctl_send_args {
 487        __s64 send_fd;                  /* in */
 488        __u64 clone_sources_count;      /* in */
 489        __u64 __user *clone_sources;    /* in */
 490        __u64 parent_root;              /* in */
 491        __u64 flags;                    /* in */
 492        __u64 reserved[4];              /* in */
 493};
 494
 495/* Error codes as returned by the kernel */
 496enum btrfs_err_code {
 497        notused,
 498        BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
 499        BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
 500        BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
 501        BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
 502        BTRFS_ERROR_DEV_TGT_REPLACE,
 503        BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
 504        BTRFS_ERROR_DEV_ONLY_WRITABLE,
 505        BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
 506};
 507/* An error code to error string mapping for the kernel
 508*  error codes
 509*/
 510static inline char *btrfs_err_str(enum btrfs_err_code err_code)
 511{
 512        switch (err_code) {
 513                case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
 514                        return "unable to go below two devices on raid1";
 515                case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
 516                        return "unable to go below four devices on raid10";
 517                case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
 518                        return "unable to go below two devices on raid5";
 519                case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
 520                        return "unable to go below three devices on raid6";
 521                case BTRFS_ERROR_DEV_TGT_REPLACE:
 522                        return "unable to remove the dev_replace target dev";
 523                case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
 524                        return "no missing devices found to remove";
 525                case BTRFS_ERROR_DEV_ONLY_WRITABLE:
 526                        return "unable to remove the only writeable device";
 527                case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
 528                        return "add/delete/balance/replace/resize operation "\
 529                                "in progress";
 530                default:
 531                        return NULL;
 532        }
 533}
 534
 535#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
 536                                   struct btrfs_ioctl_vol_args)
 537#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
 538                                   struct btrfs_ioctl_vol_args)
 539#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
 540                                   struct btrfs_ioctl_vol_args)
 541#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
 542                                   struct btrfs_ioctl_vol_args)
 543/* trans start and trans end are dangerous, and only for
 544 * use by applications that know how to avoid the
 545 * resulting deadlocks
 546 */
 547#define BTRFS_IOC_TRANS_START  _IO(BTRFS_IOCTL_MAGIC, 6)
 548#define BTRFS_IOC_TRANS_END    _IO(BTRFS_IOCTL_MAGIC, 7)
 549#define BTRFS_IOC_SYNC         _IO(BTRFS_IOCTL_MAGIC, 8)
 550
 551#define BTRFS_IOC_CLONE        _IOW(BTRFS_IOCTL_MAGIC, 9, int)
 552#define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
 553                                   struct btrfs_ioctl_vol_args)
 554#define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
 555                                   struct btrfs_ioctl_vol_args)
 556#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
 557                                   struct btrfs_ioctl_vol_args)
 558
 559#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
 560                                  struct btrfs_ioctl_clone_range_args)
 561
 562#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
 563                                   struct btrfs_ioctl_vol_args)
 564#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
 565                                struct btrfs_ioctl_vol_args)
 566#define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
 567                                struct btrfs_ioctl_defrag_range_args)
 568#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
 569                                   struct btrfs_ioctl_search_args)
 570#define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
 571                                           struct btrfs_ioctl_search_args_v2)
 572#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
 573                                   struct btrfs_ioctl_ino_lookup_args)
 574#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
 575#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
 576                                    struct btrfs_ioctl_space_args)
 577#define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
 578#define BTRFS_IOC_WAIT_SYNC  _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
 579#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
 580                                   struct btrfs_ioctl_vol_args_v2)
 581#define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
 582                                   struct btrfs_ioctl_vol_args_v2)
 583#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
 584#define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
 585#define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
 586                              struct btrfs_ioctl_scrub_args)
 587#define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
 588#define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
 589                                       struct btrfs_ioctl_scrub_args)
 590#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
 591                                 struct btrfs_ioctl_dev_info_args)
 592#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
 593                               struct btrfs_ioctl_fs_info_args)
 594#define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
 595                                   struct btrfs_ioctl_balance_args)
 596#define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
 597#define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
 598                                        struct btrfs_ioctl_balance_args)
 599#define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
 600                                        struct btrfs_ioctl_ino_path_args)
 601#define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
 602                                        struct btrfs_ioctl_ino_path_args)
 603#define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
 604                                struct btrfs_ioctl_received_subvol_args)
 605#define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
 606#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
 607                                     struct btrfs_ioctl_vol_args)
 608#define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
 609                               struct btrfs_ioctl_quota_ctl_args)
 610#define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
 611                               struct btrfs_ioctl_qgroup_assign_args)
 612#define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
 613                               struct btrfs_ioctl_qgroup_create_args)
 614#define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
 615                               struct btrfs_ioctl_qgroup_limit_args)
 616#define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
 617                               struct btrfs_ioctl_quota_rescan_args)
 618#define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
 619                               struct btrfs_ioctl_quota_rescan_args)
 620#define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
 621#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
 622                                   char[BTRFS_LABEL_SIZE])
 623#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
 624                                   char[BTRFS_LABEL_SIZE])
 625#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
 626                                      struct btrfs_ioctl_get_dev_stats)
 627#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
 628                                    struct btrfs_ioctl_dev_replace_args)
 629#define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
 630                                         struct btrfs_ioctl_same_args)
 631#define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
 632                                   struct btrfs_ioctl_feature_flags)
 633#define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
 634                                   struct btrfs_ioctl_feature_flags[2])
 635#define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
 636                                   struct btrfs_ioctl_feature_flags[3])
 637
 638#endif /* _UAPI_LINUX_BTRFS_H */
 639