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
  42#define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0)
  43
  44struct btrfs_qgroup_limit {
  45        __u64   flags;
  46        __u64   max_rfer;
  47        __u64   max_excl;
  48        __u64   rsv_rfer;
  49        __u64   rsv_excl;
  50};
  51
  52struct 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
  61struct btrfs_ioctl_qgroup_limit_args {
  62        __u64   qgroupid;
  63        struct btrfs_qgroup_limit lim;
  64};
  65
  66#define BTRFS_SUBVOL_NAME_MAX 4039
  67struct 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 */
  85struct 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
 119struct 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
 131struct 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
 144struct 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
 159struct 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
 171struct 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
 180struct 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/* balance control ioctl modes */
 188#define BTRFS_BALANCE_CTL_PAUSE         1
 189#define BTRFS_BALANCE_CTL_CANCEL        2
 190
 191/*
 192 * this is packed, because it should be exactly the same as its disk
 193 * byte order counterpart (struct btrfs_disk_balance_args)
 194 */
 195struct btrfs_balance_args {
 196        __u64 profiles;
 197        __u64 usage;
 198        __u64 devid;
 199        __u64 pstart;
 200        __u64 pend;
 201        __u64 vstart;
 202        __u64 vend;
 203
 204        __u64 target;
 205
 206        __u64 flags;
 207
 208        __u64 unused[8];
 209} __attribute__ ((__packed__));
 210
 211/* report balance progress to userspace */
 212struct btrfs_balance_progress {
 213        __u64 expected;         /* estimated # of chunks that will be
 214                                 * relocated to fulfill the request */
 215        __u64 considered;       /* # of chunks we have considered so far */
 216        __u64 completed;        /* # of chunks relocated so far */
 217};
 218
 219#define BTRFS_BALANCE_STATE_RUNNING     (1ULL << 0)
 220#define BTRFS_BALANCE_STATE_PAUSE_REQ   (1ULL << 1)
 221#define BTRFS_BALANCE_STATE_CANCEL_REQ  (1ULL << 2)
 222
 223struct btrfs_ioctl_balance_args {
 224        __u64 flags;                            /* in/out */
 225        __u64 state;                            /* out */
 226
 227        struct btrfs_balance_args data;         /* in/out */
 228        struct btrfs_balance_args meta;         /* in/out */
 229        struct btrfs_balance_args sys;          /* in/out */
 230
 231        struct btrfs_balance_progress stat;     /* out */
 232
 233        __u64 unused[72];                       /* pad to 1k */
 234};
 235
 236#define BTRFS_INO_LOOKUP_PATH_MAX 4080
 237struct btrfs_ioctl_ino_lookup_args {
 238        __u64 treeid;
 239        __u64 objectid;
 240        char name[BTRFS_INO_LOOKUP_PATH_MAX];
 241};
 242
 243struct btrfs_ioctl_search_key {
 244        /* which root are we searching.  0 is the tree of tree roots */
 245        __u64 tree_id;
 246
 247        /* keys returned will be >= min and <= max */
 248        __u64 min_objectid;
 249        __u64 max_objectid;
 250
 251        /* keys returned will be >= min and <= max */
 252        __u64 min_offset;
 253        __u64 max_offset;
 254
 255        /* max and min transids to search for */
 256        __u64 min_transid;
 257        __u64 max_transid;
 258
 259        /* keys returned will be >= min and <= max */
 260        __u32 min_type;
 261        __u32 max_type;
 262
 263        /*
 264         * how many items did userland ask for, and how many are we
 265         * returning
 266         */
 267        __u32 nr_items;
 268
 269        /* align to 64 bits */
 270        __u32 unused;
 271
 272        /* some extra for later */
 273        __u64 unused1;
 274        __u64 unused2;
 275        __u64 unused3;
 276        __u64 unused4;
 277};
 278
 279struct btrfs_ioctl_search_header {
 280        __u64 transid;
 281        __u64 objectid;
 282        __u64 offset;
 283        __u32 type;
 284        __u32 len;
 285};
 286
 287#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
 288/*
 289 * the buf is an array of search headers where
 290 * each header is followed by the actual item
 291 * the type field is expanded to 32 bits for alignment
 292 */
 293struct btrfs_ioctl_search_args {
 294        struct btrfs_ioctl_search_key key;
 295        char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
 296};
 297
 298struct btrfs_ioctl_clone_range_args {
 299  __s64 src_fd;
 300  __u64 src_offset, src_length;
 301  __u64 dest_offset;
 302};
 303
 304/* flags for the defrag range ioctl */
 305#define BTRFS_DEFRAG_RANGE_COMPRESS 1
 306#define BTRFS_DEFRAG_RANGE_START_IO 2
 307
 308#define BTRFS_SAME_DATA_DIFFERS 1
 309/* For extent-same ioctl */
 310struct btrfs_ioctl_same_extent_info {
 311        __s64 fd;               /* in - destination file */
 312        __u64 logical_offset;   /* in - start of extent in destination */
 313        __u64 bytes_deduped;    /* out - total # of bytes we were able
 314                                 * to dedupe from this file */
 315        /* status of this dedupe operation:
 316         * 0 if dedup succeeds
 317         * < 0 for error
 318         * == BTRFS_SAME_DATA_DIFFERS if data differs
 319         */
 320        __s32 status;           /* out - see above description */
 321        __u32 reserved;
 322};
 323
 324struct btrfs_ioctl_same_args {
 325        __u64 logical_offset;   /* in - start of extent in source */
 326        __u64 length;           /* in - length of extent */
 327        __u16 dest_count;       /* in - total elements in info array */
 328        __u16 reserved1;
 329        __u32 reserved2;
 330        struct btrfs_ioctl_same_extent_info info[0];
 331};
 332
 333struct btrfs_ioctl_space_info {
 334        __u64 flags;
 335        __u64 total_bytes;
 336        __u64 used_bytes;
 337};
 338
 339struct btrfs_ioctl_space_args {
 340        __u64 space_slots;
 341        __u64 total_spaces;
 342        struct btrfs_ioctl_space_info spaces[0];
 343};
 344
 345struct btrfs_data_container {
 346        __u32   bytes_left;     /* out -- bytes not needed to deliver output */
 347        __u32   bytes_missing;  /* out -- additional bytes needed for result */
 348        __u32   elem_cnt;       /* out */
 349        __u32   elem_missed;    /* out */
 350        __u64   val[0];         /* out */
 351};
 352
 353struct btrfs_ioctl_ino_path_args {
 354        __u64                           inum;           /* in */
 355        __u64                           size;           /* in */
 356        __u64                           reserved[4];
 357        /* struct btrfs_data_container  *fspath;           out */
 358        __u64                           fspath;         /* out */
 359};
 360
 361struct btrfs_ioctl_logical_ino_args {
 362        __u64                           logical;        /* in */
 363        __u64                           size;           /* in */
 364        __u64                           reserved[4];
 365        /* struct btrfs_data_container  *inodes;        out   */
 366        __u64                           inodes;
 367};
 368
 369enum btrfs_dev_stat_values {
 370        /* disk I/O failure stats */
 371        BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */
 372        BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */
 373        BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */
 374
 375        /* stats for indirect indications for I/O failures */
 376        BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or
 377                                         * contents is illegal: this is an
 378                                         * indication that the block was damaged
 379                                         * during read or write, or written to
 380                                         * wrong location or read from wrong
 381                                         * location */
 382        BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not
 383                                         * been written */
 384
 385        BTRFS_DEV_STAT_VALUES_MAX
 386};
 387
 388/* Reset statistics after reading; needs SYS_ADMIN capability */
 389#define BTRFS_DEV_STATS_RESET           (1ULL << 0)
 390
 391struct btrfs_ioctl_get_dev_stats {
 392        __u64 devid;                            /* in */
 393        __u64 nr_items;                         /* in/out */
 394        __u64 flags;                            /* in/out */
 395
 396        /* out values: */
 397        __u64 values[BTRFS_DEV_STAT_VALUES_MAX];
 398
 399        __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */
 400};
 401
 402#define BTRFS_QUOTA_CTL_ENABLE  1
 403#define BTRFS_QUOTA_CTL_DISABLE 2
 404#define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3
 405struct btrfs_ioctl_quota_ctl_args {
 406        __u64 cmd;
 407        __u64 status;
 408};
 409
 410struct btrfs_ioctl_quota_rescan_args {
 411        __u64   flags;
 412        __u64   progress;
 413        __u64   reserved[6];
 414};
 415
 416struct btrfs_ioctl_qgroup_assign_args {
 417        __u64 assign;
 418        __u64 src;
 419        __u64 dst;
 420};
 421
 422struct btrfs_ioctl_qgroup_create_args {
 423        __u64 create;
 424        __u64 qgroupid;
 425};
 426struct btrfs_ioctl_timespec {
 427        __u64 sec;
 428        __u32 nsec;
 429};
 430
 431struct btrfs_ioctl_received_subvol_args {
 432        char    uuid[BTRFS_UUID_SIZE];  /* in */
 433        __u64   stransid;               /* in */
 434        __u64   rtransid;               /* out */
 435        struct btrfs_ioctl_timespec stime; /* in */
 436        struct btrfs_ioctl_timespec rtime; /* out */
 437        __u64   flags;                  /* in */
 438        __u64   reserved[16];           /* in */
 439};
 440
 441/*
 442 * Caller doesn't want file data in the send stream, even if the
 443 * search of clone sources doesn't find an extent. UPDATE_EXTENT
 444 * commands will be sent instead of WRITE commands.
 445 */
 446#define BTRFS_SEND_FLAG_NO_FILE_DATA            0x1
 447
 448/*
 449 * Do not add the leading stream header. Used when multiple snapshots
 450 * are sent back to back.
 451 */
 452#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER      0x2
 453
 454/*
 455 * Omit the command at the end of the stream that indicated the end
 456 * of the stream. This option is used when multiple snapshots are
 457 * sent back to back.
 458 */
 459#define BTRFS_SEND_FLAG_OMIT_END_CMD            0x4
 460
 461#define BTRFS_SEND_FLAG_MASK \
 462        (BTRFS_SEND_FLAG_NO_FILE_DATA | \
 463         BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
 464         BTRFS_SEND_FLAG_OMIT_END_CMD)
 465
 466struct btrfs_ioctl_send_args {
 467        __s64 send_fd;                  /* in */
 468        __u64 clone_sources_count;      /* in */
 469        __u64 __user *clone_sources;    /* in */
 470        __u64 parent_root;              /* in */
 471        __u64 flags;                    /* in */
 472        __u64 reserved[4];              /* in */
 473};
 474
 475/* Error codes as returned by the kernel */
 476enum btrfs_err_code {
 477        notused,
 478        BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET,
 479        BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET,
 480        BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET,
 481        BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET,
 482        BTRFS_ERROR_DEV_TGT_REPLACE,
 483        BTRFS_ERROR_DEV_MISSING_NOT_FOUND,
 484        BTRFS_ERROR_DEV_ONLY_WRITABLE,
 485        BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS
 486};
 487/* An error code to error string mapping for the kernel
 488*  error codes
 489*/
 490static inline char *btrfs_err_str(enum btrfs_err_code err_code)
 491{
 492        switch (err_code) {
 493                case BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET:
 494                        return "unable to go below two devices on raid1";
 495                case BTRFS_ERROR_DEV_RAID10_MIN_NOT_MET:
 496                        return "unable to go below four devices on raid10";
 497                case BTRFS_ERROR_DEV_RAID5_MIN_NOT_MET:
 498                        return "unable to go below two devices on raid5";
 499                case BTRFS_ERROR_DEV_RAID6_MIN_NOT_MET:
 500                        return "unable to go below three devices on raid6";
 501                case BTRFS_ERROR_DEV_TGT_REPLACE:
 502                        return "unable to remove the dev_replace target dev";
 503                case BTRFS_ERROR_DEV_MISSING_NOT_FOUND:
 504                        return "no missing devices found to remove";
 505                case BTRFS_ERROR_DEV_ONLY_WRITABLE:
 506                        return "unable to remove the only writeable device";
 507                case BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS:
 508                        return "add/delete/balance/replace/resize operation "\
 509                                "in progress";
 510                default:
 511                        return NULL;
 512        }
 513}
 514
 515#define BTRFS_IOC_SNAP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 1, \
 516                                   struct btrfs_ioctl_vol_args)
 517#define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
 518                                   struct btrfs_ioctl_vol_args)
 519#define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
 520                                   struct btrfs_ioctl_vol_args)
 521#define BTRFS_IOC_SCAN_DEV _IOW(BTRFS_IOCTL_MAGIC, 4, \
 522                                   struct btrfs_ioctl_vol_args)
 523/* trans start and trans end are dangerous, and only for
 524 * use by applications that know how to avoid the
 525 * resulting deadlocks
 526 */
 527#define BTRFS_IOC_TRANS_START  _IO(BTRFS_IOCTL_MAGIC, 6)
 528#define BTRFS_IOC_TRANS_END    _IO(BTRFS_IOCTL_MAGIC, 7)
 529#define BTRFS_IOC_SYNC         _IO(BTRFS_IOCTL_MAGIC, 8)
 530
 531#define BTRFS_IOC_CLONE        _IOW(BTRFS_IOCTL_MAGIC, 9, int)
 532#define BTRFS_IOC_ADD_DEV _IOW(BTRFS_IOCTL_MAGIC, 10, \
 533                                   struct btrfs_ioctl_vol_args)
 534#define BTRFS_IOC_RM_DEV _IOW(BTRFS_IOCTL_MAGIC, 11, \
 535                                   struct btrfs_ioctl_vol_args)
 536#define BTRFS_IOC_BALANCE _IOW(BTRFS_IOCTL_MAGIC, 12, \
 537                                   struct btrfs_ioctl_vol_args)
 538
 539#define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
 540                                  struct btrfs_ioctl_clone_range_args)
 541
 542#define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
 543                                   struct btrfs_ioctl_vol_args)
 544#define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
 545                                struct btrfs_ioctl_vol_args)
 546#define BTRFS_IOC_DEFRAG_RANGE _IOW(BTRFS_IOCTL_MAGIC, 16, \
 547                                struct btrfs_ioctl_defrag_range_args)
 548#define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
 549                                   struct btrfs_ioctl_search_args)
 550#define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
 551                                   struct btrfs_ioctl_ino_lookup_args)
 552#define BTRFS_IOC_DEFAULT_SUBVOL _IOW(BTRFS_IOCTL_MAGIC, 19, __u64)
 553#define BTRFS_IOC_SPACE_INFO _IOWR(BTRFS_IOCTL_MAGIC, 20, \
 554                                    struct btrfs_ioctl_space_args)
 555#define BTRFS_IOC_START_SYNC _IOR(BTRFS_IOCTL_MAGIC, 24, __u64)
 556#define BTRFS_IOC_WAIT_SYNC  _IOW(BTRFS_IOCTL_MAGIC, 22, __u64)
 557#define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
 558                                   struct btrfs_ioctl_vol_args_v2)
 559#define BTRFS_IOC_SUBVOL_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 24, \
 560                                   struct btrfs_ioctl_vol_args_v2)
 561#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
 562#define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
 563#define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \
 564                              struct btrfs_ioctl_scrub_args)
 565#define BTRFS_IOC_SCRUB_CANCEL _IO(BTRFS_IOCTL_MAGIC, 28)
 566#define BTRFS_IOC_SCRUB_PROGRESS _IOWR(BTRFS_IOCTL_MAGIC, 29, \
 567                                       struct btrfs_ioctl_scrub_args)
 568#define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
 569                                 struct btrfs_ioctl_dev_info_args)
 570#define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
 571                               struct btrfs_ioctl_fs_info_args)
 572#define BTRFS_IOC_BALANCE_V2 _IOWR(BTRFS_IOCTL_MAGIC, 32, \
 573                                   struct btrfs_ioctl_balance_args)
 574#define BTRFS_IOC_BALANCE_CTL _IOW(BTRFS_IOCTL_MAGIC, 33, int)
 575#define BTRFS_IOC_BALANCE_PROGRESS _IOR(BTRFS_IOCTL_MAGIC, 34, \
 576                                        struct btrfs_ioctl_balance_args)
 577#define BTRFS_IOC_INO_PATHS _IOWR(BTRFS_IOCTL_MAGIC, 35, \
 578                                        struct btrfs_ioctl_ino_path_args)
 579#define BTRFS_IOC_LOGICAL_INO _IOWR(BTRFS_IOCTL_MAGIC, 36, \
 580                                        struct btrfs_ioctl_ino_path_args)
 581#define BTRFS_IOC_SET_RECEIVED_SUBVOL _IOWR(BTRFS_IOCTL_MAGIC, 37, \
 582                                struct btrfs_ioctl_received_subvol_args)
 583#define BTRFS_IOC_SEND _IOW(BTRFS_IOCTL_MAGIC, 38, struct btrfs_ioctl_send_args)
 584#define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
 585                                     struct btrfs_ioctl_vol_args)
 586#define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
 587                               struct btrfs_ioctl_quota_ctl_args)
 588#define BTRFS_IOC_QGROUP_ASSIGN _IOW(BTRFS_IOCTL_MAGIC, 41, \
 589                               struct btrfs_ioctl_qgroup_assign_args)
 590#define BTRFS_IOC_QGROUP_CREATE _IOW(BTRFS_IOCTL_MAGIC, 42, \
 591                               struct btrfs_ioctl_qgroup_create_args)
 592#define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
 593                               struct btrfs_ioctl_qgroup_limit_args)
 594#define BTRFS_IOC_QUOTA_RESCAN _IOW(BTRFS_IOCTL_MAGIC, 44, \
 595                               struct btrfs_ioctl_quota_rescan_args)
 596#define BTRFS_IOC_QUOTA_RESCAN_STATUS _IOR(BTRFS_IOCTL_MAGIC, 45, \
 597                               struct btrfs_ioctl_quota_rescan_args)
 598#define BTRFS_IOC_QUOTA_RESCAN_WAIT _IO(BTRFS_IOCTL_MAGIC, 46)
 599#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
 600                                   char[BTRFS_LABEL_SIZE])
 601#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
 602                                   char[BTRFS_LABEL_SIZE])
 603#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
 604                                      struct btrfs_ioctl_get_dev_stats)
 605#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \
 606                                    struct btrfs_ioctl_dev_replace_args)
 607#define BTRFS_IOC_FILE_EXTENT_SAME _IOWR(BTRFS_IOCTL_MAGIC, 54, \
 608                                         struct btrfs_ioctl_same_args)
 609
 610#endif /* _UAPI_LINUX_BTRFS_H */
 611