1/* 2 * Copyright (C) 2007 Oracle. All rights reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public 6 * License v2 as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public 14 * License along with this program; if not, write to the 15 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 16 * Boston, MA 021110-1307, USA. 17 */ 18 19#ifndef _UAPI_LINUX_BTRFS_H 20#define _UAPI_LINUX_BTRFS_H 21#include <linux/types.h> 22#include <linux/ioctl.h> 23 24#define BTRFS_IOCTL_MAGIC 0x94 25#define BTRFS_VOL_NAME_MAX 255 26 27/* this should be 4k */ 28#define BTRFS_PATH_NAME_MAX 4087 29struct btrfs_ioctl_vol_args { 30 __s64 fd; 31 char name[BTRFS_PATH_NAME_MAX + 1]; 32}; 33 34#define BTRFS_DEVICE_PATH_NAME_MAX 1024 35 36#define BTRFS_SUBVOL_CREATE_ASYNC (1ULL << 0) 37#define BTRFS_SUBVOL_RDONLY (1ULL << 1) 38#define BTRFS_SUBVOL_QGROUP_INHERIT (1ULL << 2) 39#define BTRFS_FSID_SIZE 16 40#define BTRFS_UUID_SIZE 16 41#define BTRFS_UUID_UNPARSED_SIZE 37 42 43#define BTRFS_QGROUP_INHERIT_SET_LIMITS (1ULL << 0) 44 45struct btrfs_qgroup_limit { 46 __u64 flags; 47 __u64 max_rfer; 48 __u64 max_excl; 49 __u64 rsv_rfer; 50 __u64 rsv_excl; 51}; 52 53struct btrfs_qgroup_inherit { 54 __u64 flags; 55 __u64 num_qgroups; 56 __u64 num_ref_copies; 57 __u64 num_excl_copies; 58 struct btrfs_qgroup_limit lim; 59 __u64 qgroups[0]; 60}; 61 62struct btrfs_ioctl_qgroup_limit_args { 63 __u64 qgroupid; 64 struct btrfs_qgroup_limit lim; 65}; 66 67#define BTRFS_SUBVOL_NAME_MAX 4039 68struct btrfs_ioctl_vol_args_v2 { 69 __s64 fd; 70 __u64 transid; 71 __u64 flags; 72 union { 73 struct { 74 __u64 size; 75 struct btrfs_qgroup_inherit __user *qgroup_inherit; 76 }; 77 __u64 unused[4]; 78 }; 79 char name[BTRFS_SUBVOL_NAME_MAX + 1]; 80}; 81 82/* 83 * structure to report errors and progress to userspace, either as a 84 * result of a finished scrub, a canceled scrub or a progress inquiry 85 */ 86struct btrfs_scrub_progress { 87 __u64 data_extents_scrubbed; /* # of data extents scrubbed */ 88 __u64 tree_extents_scrubbed; /* # of tree extents scrubbed */ 89 __u64 data_bytes_scrubbed; /* # of data bytes scrubbed */ 90 __u64 tree_bytes_scrubbed; /* # of tree bytes scrubbed */ 91 __u64 read_errors; /* # of read errors encountered (EIO) */ 92 __u64 csum_errors; /* # of failed csum checks */ 93 __u64 verify_errors; /* # of occurences, where the metadata 94 * of a tree block did not match the 95 * expected values, like generation or 96 * logical */ 97 __u64 no_csum; /* # of 4k data block for which no csum 98 * is present, probably the result of 99 * data written with nodatasum */ 100 __u64 csum_discards; /* # of csum for which no data was found 101 * in the extent tree. */ 102 __u64 super_errors; /* # of bad super blocks encountered */ 103 __u64 malloc_errors; /* # of internal kmalloc errors. These 104 * will likely cause an incomplete 105 * scrub */ 106 __u64 uncorrectable_errors; /* # of errors where either no intact 107 * copy was found or the writeback 108 * failed */ 109 __u64 corrected_errors; /* # of errors corrected */ 110 __u64 last_physical; /* last physical address scrubbed. In 111 * case a scrub was aborted, this can 112 * be used to restart the scrub */ 113 __u64 unverified_errors; /* # of occurences where a read for a 114 * full (64k) bio failed, but the re- 115 * check succeeded for each 4k piece. 116 * Intermittent error. */ 117}; 118 119#define BTRFS_SCRUB_READONLY 1 120struct btrfs_ioctl_scrub_args { 121 __u64 devid; /* in */ 122 __u64 start; /* in */ 123 __u64 end; /* in */ 124 __u64 flags; /* in */ 125 struct btrfs_scrub_progress progress; /* out */ 126 /* pad to 1k */ 127 __u64 unused[(1024-32-sizeof(struct btrfs_scrub_progress))/8]; 128}; 129 130#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 131#define BTRFS_IOCTL_DEV_REPLACE_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 132struct btrfs_ioctl_dev_replace_start_params { 133 __u64 srcdevid; /* in, if 0, use srcdev_name instead */ 134 __u64 cont_reading_from_srcdev_mode; /* in, see #define 135 * above */ 136 __u8 srcdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */ 137 __u8 tgtdev_name[BTRFS_DEVICE_PATH_NAME_MAX + 1]; /* in */ 138}; 139 140#define BTRFS_IOCTL_DEV_REPLACE_STATE_NEVER_STARTED 0 141#define BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED 1 142#define BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED 2 143#define BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED 3 144#define BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED 4 145struct btrfs_ioctl_dev_replace_status_params { 146 __u64 replace_state; /* out, see #define above */ 147 __u64 progress_1000; /* out, 0 <= x <= 1000 */ 148 __u64 time_started; /* out, seconds since 1-Jan-1970 */ 149 __u64 time_stopped; /* out, seconds since 1-Jan-1970 */ 150 __u64 num_write_errors; /* out */ 151 __u64 num_uncorrectable_read_errors; /* out */ 152}; 153 154#define BTRFS_IOCTL_DEV_REPLACE_CMD_START 0 155#define BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS 1 156#define BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL 2 157#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR 0 158#define BTRFS_IOCTL_DEV_REPLACE_RESULT_NOT_STARTED 1 159#define BTRFS_IOCTL_DEV_REPLACE_RESULT_ALREADY_STARTED 2 160#define BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS 3 161struct btrfs_ioctl_dev_replace_args { 162 __u64 cmd; /* in */ 163 __u64 result; /* out */ 164 165 union { 166 struct btrfs_ioctl_dev_replace_start_params start; 167 struct btrfs_ioctl_dev_replace_status_params status; 168 }; /* in/out */ 169 170 __u64 spare[64]; 171}; 172 173struct btrfs_ioctl_dev_info_args { 174 __u64 devid; /* in/out */ 175 __u8 uuid[BTRFS_UUID_SIZE]; /* in/out */ 176 __u64 bytes_used; /* out */ 177 __u64 total_bytes; /* out */ 178 __u64 unused[379]; /* pad to 4k */ 179 __u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */ 180}; 181 182struct btrfs_ioctl_fs_info_args { 183 __u64 max_id; /* out */ 184 __u64 num_devices; /* out */ 185 __u8 fsid[BTRFS_FSID_SIZE]; /* out */ 186 __u32 nodesize; /* out */ 187 __u32 sectorsize; /* out */ 188 __u32 clone_alignment; /* out */ 189 __u32 reserved32; 190 __u64 reserved[122]; /* pad to 1k */ 191}; 192 193struct btrfs_ioctl_feature_flags { 194 __u64 compat_flags; 195 __u64 compat_ro_flags; 196 __u64 incompat_flags; 197}; 198 199/* balance control ioctl modes */ 200#define BTRFS_BALANCE_CTL_PAUSE 1 201#define BTRFS_BALANCE_CTL_CANCEL 2 202 203/* 204 * this is packed, because it should be exactly the same as its disk 205 * byte order counterpart (struct btrfs_disk_balance_args) 206 */ 207struct btrfs_balance_args { 208 __u64 profiles; 209 __u64 usage; 210 __u64 devid; 211 __u64 pstart; 212 __u64 pend; 213 __u64 vstart; 214 __u64 vend; 215 216 __u64 target; 217 218 __u64 flags; 219 220 __u64 limit; /* limit number of processed chunks */ 221 __u64 unused[7]; 222} __attribute__ ((__packed__)); 223 224/* report balance progress to userspace */ 225struct btrfs_balance_progress { 226 __u64 expected; /* estimated # of chunks that will be 227 * relocated to fulfill the request */ 228 __u64 considered; /* # of chunks we have considered so far */ 229 __u64 completed; /* # of chunks relocated so far */ 230}; 231 232#define BTRFS_BALANCE_STATE_RUNNING (1ULL << 0) 233#define BTRFS_BALANCE_STATE_PAUSE_REQ (1ULL << 1) 234#define BTRFS_BALANCE_STATE_CANCEL_REQ (1ULL << 2) 235 236struct btrfs_ioctl_balance_args { 237 __u64 flags; /* in/out */ 238 __u64 state; /* out */ 239 240 struct btrfs_balance_args data; /* in/out */ 241 struct btrfs_balance_args meta; /* in/out */ 242 struct btrfs_balance_args sys; /* in/out */ 243 244 struct btrfs_balance_progress stat; /* out */ 245 246 __u64 unused[72]; /* pad to 1k */ 247}; 248 249#define BTRFS_INO_LOOKUP_PATH_MAX 4080 250struct btrfs_ioctl_ino_lookup_args { 251 __u64 treeid; 252 __u64 objectid; 253 char name[BTRFS_INO_LOOKUP_PATH_MAX]; 254}; 255 256struct btrfs_ioctl_search_key { 257 /* which root are we searching. 0 is the tree of tree roots */ 258 __u64 tree_id; 259 260 /* keys returned will be >= min and <= max */ 261 __u64 min_objectid; 262 __u64 max_objectid; 263 264 /* keys returned will be >= min and <= max */ 265 __u64 min_offset; 266 __u64 max_offset; 267 268 /* max and min transids to search for */ 269 __u64 min_transid; 270 __u64 max_transid; 271 272 /* keys returned will be >= min and <= max */ 273 __u32 min_type; 274 __u32 max_type; 275 276 /* 277 * how many items did userland ask for, and how many are we 278 * returning 279 */ 280 __u32 nr_items; 281 282 /* align to 64 bits */ 283 __u32 unused; 284 285 /* some extra for later */ 286 __u64 unused1; 287 __u64 unused2; 288 __u64 unused3; 289 __u64 unused4; 290}; 291 292struct btrfs_ioctl_search_header { 293 __u64 transid; 294 __u64 objectid; 295 __u64 offset; 296 __u32 type; 297 __u32 len; 298}; 299 300#define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key)) 301/* 302 * the buf is an array of search headers where 303 * each header is followed by the actual item 304 * the type field is expanded to 32 bits for alignment 305 */ 306struct btrfs_ioctl_search_args { 307 struct btrfs_ioctl_search_key key; 308 char buf[BTRFS_SEARCH_ARGS_BUFSIZE]; 309}; 310 311struct btrfs_ioctl_search_args_v2 { 312 struct btrfs_ioctl_search_key key; /* in/out - search parameters */ 313 __u64 buf_size; /* in - size of buffer 314 * out - on EOVERFLOW: needed size 315 * to store item */ 316 __u64 buf[0]; /* out - found items */ 317}; 318 319struct btrfs_ioctl_clone_range_args { 320 __s64 src_fd; 321 __u64 src_offset, src_length; 322 __u64 dest_offset; 323}; 324 325/* flags for the defrag range ioctl */ 326#define BTRFS_DEFRAG_RANGE_COMPRESS 1 327#define BTRFS_DEFRAG_RANGE_START_IO 2 328 329#define BTRFS_SAME_DATA_DIFFERS 1 330/* For extent-same ioctl */ 331struct btrfs_ioctl_same_extent_info { 332 __s64 fd; /* in - destination file */ 333 __u64 logical_offset; /* in - start of extent in destination */ 334 __u64 bytes_deduped; /* out - total # of bytes we were able 335 * to dedupe from this file */ 336 /* status of this dedupe operation: 337 * 0 if dedup succeeds 338 * < 0 for error 339 * == BTRFS_SAME_DATA_DIFFERS if data differs 340 */ 341 __s32 status; /* out - see above description */ 342 __u32 reserved; 343}; 344 345struct btrfs_ioctl_same_args { 346 __u64 logical_offset; /* in - start of extent in source */ 347 __u64 length; /* in - length of extent */ 348 __u16 dest_count; /* in - total elements in info array */ 349 __u16 reserved1; 350 __u32 reserved2; 351 struct btrfs_ioctl_same_extent_info info[0]; 352}; 353 354struct btrfs_ioctl_space_info { 355 __u64 flags; 356 __u64 total_bytes; 357 __u64 used_bytes; 358}; 359 360struct btrfs_ioctl_space_args { 361 __u64 space_slots; 362 __u64 total_spaces; 363 struct btrfs_ioctl_space_info spaces[0]; 364}; 365 366struct btrfs_data_container { 367 __u32 bytes_left; /* out -- bytes not needed to deliver output */ 368 __u32 bytes_missing; /* out -- additional bytes needed for result */ 369 __u32 elem_cnt; /* out */ 370 __u32 elem_missed; /* out */ 371 __u64 val[0]; /* out */ 372}; 373 374struct btrfs_ioctl_ino_path_args { 375 __u64 inum; /* in */ 376 __u64 size; /* in */ 377 __u64 reserved[4]; 378 /* struct btrfs_data_container *fspath; out */ 379 __u64 fspath; /* out */ 380}; 381 382struct btrfs_ioctl_logical_ino_args { 383 __u64 logical; /* in */ 384 __u64 size; /* in */ 385 __u64 reserved[4]; 386 /* struct btrfs_data_container *inodes; out */ 387 __u64 inodes; 388}; 389 390enum btrfs_dev_stat_values { 391 /* disk I/O failure stats */ 392 BTRFS_DEV_STAT_WRITE_ERRS, /* EIO or EREMOTEIO from lower layers */ 393 BTRFS_DEV_STAT_READ_ERRS, /* EIO or EREMOTEIO from lower layers */ 394 BTRFS_DEV_STAT_FLUSH_ERRS, /* EIO or EREMOTEIO from lower layers */ 395 396 /* stats for indirect indications for I/O failures */ 397 BTRFS_DEV_STAT_CORRUPTION_ERRS, /* checksum error, bytenr error or 398 * contents is illegal: this is an 399 * indication that the block was damaged 400 * during read or write, or written to 401 * wrong location or read from wrong 402 * location */ 403 BTRFS_DEV_STAT_GENERATION_ERRS, /* an indication that blocks have not 404 * been written */ 405 406 BTRFS_DEV_STAT_VALUES_MAX 407}; 408 409/* Reset statistics after reading; needs SYS_ADMIN capability */ 410#define BTRFS_DEV_STATS_RESET (1ULL << 0) 411 412struct btrfs_ioctl_get_dev_stats { 413 __u64 devid; /* in */ 414 __u64 nr_items; /* in/out */ 415 __u64 flags; /* in/out */ 416 417 /* out values: */ 418 __u64 values[BTRFS_DEV_STAT_VALUES_MAX]; 419 420 __u64 unused[128 - 2 - BTRFS_DEV_STAT_VALUES_MAX]; /* pad to 1k */ 421}; 422 423#define BTRFS_QUOTA_CTL_ENABLE 1 424#define BTRFS_QUOTA_CTL_DISABLE 2 425#define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3 426struct btrfs_ioctl_quota_ctl_args { 427 __u64 cmd; 428 __u64 status; 429}; 430 431struct btrfs_ioctl_quota_rescan_args { 432 __u64 flags; 433 __u64 progress; 434 __u64 reserved[6]; 435}; 436 437struct btrfs_ioctl_qgroup_assign_args { 438 __u64 assign; 439 __u64 src; 440 __u64 dst; 441}; 442 443struct btrfs_ioctl_qgroup_create_args { 444 __u64 create; 445 __u64 qgroupid; 446}; 447struct btrfs_ioctl_timespec { 448 __u64 sec; 449 __u32 nsec; 450}; 451 452struct btrfs_ioctl_received_subvol_args { 453 char uuid[BTRFS_UUID_SIZE]; /* in */ 454 __u64 stransid; /* in */ 455 __u64 rtransid; /* out */ 456 struct btrfs_ioctl_timespec stime; /* in */ 457 struct btrfs_ioctl_timespec rtime; /* out */ 458 __u64 flags; /* in */ 459 __u64 reserved[16]; /* in */ 460}; 461 462/* 463 * Caller doesn't want file data in the send stream, even if the 464 * search of clone sources doesn't find an extent. UPDATE_EXTENT 465 * commands will be sent instead of WRITE commands. 466 */ 467#define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1 468 469/* 470 * Do not add the leading stream header. Used when multiple snapshots 471 * are sent back to back. 472 */ 473#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2 474 475/* 476 * Omit the command at the end of the stream that indicated the end 477 * of the stream. This option is used when multiple snapshots are 478 * sent back to back. 479 */ 480#define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4 481 482#define BTRFS_SEND_FLAG_MASK \ 483 (BTRFS_SEND_FLAG_NO_FILE_DATA | \ 484 BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \ 485 BTRFS_SEND_FLAG_OMIT_END_CMD) 486 487struct btrfs_ioctl_send_args { 488 __s64 send_fd; /* in */ 489 __u64 clone_sources_count; /* in */ 490 __u64 __user *clone_sources; /* in */ 491 __u64 parent_root; /* in */ 492 __u64 flags; /* in */ 493 __u64 reserved[4]; /* in */ 494}; 495 496/* Error codes as returned by the kernel */ 497enum btrfs_err_code { 498 BTRFS_ERROR_DEV_RAID1_MIN_NOT_MET = 1, 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