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