1 /* 2 * This file is auto-generated. Modifications will be lost. 3 * 4 * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/ 5 * for more information. 6 */ 7 #ifndef _BTRFS_CTREE_H_ 8 #define _BTRFS_CTREE_H_ 9 #include <linux/btrfs.h> 10 #include <linux/types.h> 11 #include <stddef.h> 12 #define BTRFS_MAGIC 0x4D5F53665248425FULL 13 #define BTRFS_MAX_LEVEL 8 14 #define BTRFS_NAME_LEN 255 15 #define BTRFS_LINK_MAX 65535U 16 #define BTRFS_ROOT_TREE_OBJECTID 1ULL 17 #define BTRFS_EXTENT_TREE_OBJECTID 2ULL 18 #define BTRFS_CHUNK_TREE_OBJECTID 3ULL 19 #define BTRFS_DEV_TREE_OBJECTID 4ULL 20 #define BTRFS_FS_TREE_OBJECTID 5ULL 21 #define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL 22 #define BTRFS_CSUM_TREE_OBJECTID 7ULL 23 #define BTRFS_QUOTA_TREE_OBJECTID 8ULL 24 #define BTRFS_UUID_TREE_OBJECTID 9ULL 25 #define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL 26 #define BTRFS_BLOCK_GROUP_TREE_OBJECTID 11ULL 27 #define BTRFS_RAID_STRIPE_TREE_OBJECTID 12ULL 28 #define BTRFS_DEV_STATS_OBJECTID 0ULL 29 #define BTRFS_BALANCE_OBJECTID - 4ULL 30 #define BTRFS_ORPHAN_OBJECTID - 5ULL 31 #define BTRFS_TREE_LOG_OBJECTID - 6ULL 32 #define BTRFS_TREE_LOG_FIXUP_OBJECTID - 7ULL 33 #define BTRFS_TREE_RELOC_OBJECTID - 8ULL 34 #define BTRFS_DATA_RELOC_TREE_OBJECTID - 9ULL 35 #define BTRFS_EXTENT_CSUM_OBJECTID - 10ULL 36 #define BTRFS_FREE_SPACE_OBJECTID - 11ULL 37 #define BTRFS_FREE_INO_OBJECTID - 12ULL 38 #define BTRFS_MULTIPLE_OBJECTIDS - 255ULL 39 #define BTRFS_FIRST_FREE_OBJECTID 256ULL 40 #define BTRFS_LAST_FREE_OBJECTID - 256ULL 41 #define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL 42 #define BTRFS_DEV_ITEMS_OBJECTID 1ULL 43 #define BTRFS_BTREE_INODE_OBJECTID 1 44 #define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2 45 #define BTRFS_DEV_REPLACE_DEVID 0ULL 46 #define BTRFS_INODE_ITEM_KEY 1 47 #define BTRFS_INODE_REF_KEY 12 48 #define BTRFS_INODE_EXTREF_KEY 13 49 #define BTRFS_XATTR_ITEM_KEY 24 50 #define BTRFS_VERITY_DESC_ITEM_KEY 36 51 #define BTRFS_VERITY_MERKLE_ITEM_KEY 37 52 #define BTRFS_ORPHAN_ITEM_KEY 48 53 #define BTRFS_DIR_LOG_ITEM_KEY 60 54 #define BTRFS_DIR_LOG_INDEX_KEY 72 55 #define BTRFS_DIR_ITEM_KEY 84 56 #define BTRFS_DIR_INDEX_KEY 96 57 #define BTRFS_EXTENT_DATA_KEY 108 58 #define BTRFS_EXTENT_CSUM_KEY 128 59 #define BTRFS_ROOT_ITEM_KEY 132 60 #define BTRFS_ROOT_BACKREF_KEY 144 61 #define BTRFS_ROOT_REF_KEY 156 62 #define BTRFS_EXTENT_ITEM_KEY 168 63 #define BTRFS_METADATA_ITEM_KEY 169 64 #define BTRFS_EXTENT_OWNER_REF_KEY 172 65 #define BTRFS_TREE_BLOCK_REF_KEY 176 66 #define BTRFS_EXTENT_DATA_REF_KEY 178 67 #define BTRFS_SHARED_BLOCK_REF_KEY 182 68 #define BTRFS_SHARED_DATA_REF_KEY 184 69 #define BTRFS_BLOCK_GROUP_ITEM_KEY 192 70 #define BTRFS_FREE_SPACE_INFO_KEY 198 71 #define BTRFS_FREE_SPACE_EXTENT_KEY 199 72 #define BTRFS_FREE_SPACE_BITMAP_KEY 200 73 #define BTRFS_DEV_EXTENT_KEY 204 74 #define BTRFS_DEV_ITEM_KEY 216 75 #define BTRFS_CHUNK_ITEM_KEY 228 76 #define BTRFS_RAID_STRIPE_KEY 230 77 #define BTRFS_QGROUP_STATUS_KEY 240 78 #define BTRFS_QGROUP_INFO_KEY 242 79 #define BTRFS_QGROUP_LIMIT_KEY 244 80 #define BTRFS_QGROUP_RELATION_KEY 246 81 #define BTRFS_BALANCE_ITEM_KEY 248 82 #define BTRFS_TEMPORARY_ITEM_KEY 248 83 #define BTRFS_DEV_STATS_KEY 249 84 #define BTRFS_PERSISTENT_ITEM_KEY 249 85 #define BTRFS_DEV_REPLACE_KEY 250 86 #if BTRFS_UUID_SIZE != 16 87 #error "UUID items require BTRFS_UUID_SIZE == 16!" 88 #endif 89 #define BTRFS_UUID_KEY_SUBVOL 251 90 #define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252 91 #define BTRFS_STRING_ITEM_KEY 253 92 #define BTRFS_MAX_METADATA_BLOCKSIZE 65536 93 #define BTRFS_CSUM_SIZE 32 94 enum btrfs_csum_type { 95 BTRFS_CSUM_TYPE_CRC32 = 0, 96 BTRFS_CSUM_TYPE_XXHASH = 1, 97 BTRFS_CSUM_TYPE_SHA256 = 2, 98 BTRFS_CSUM_TYPE_BLAKE2 = 3, 99 }; 100 #define BTRFS_FT_UNKNOWN 0 101 #define BTRFS_FT_REG_FILE 1 102 #define BTRFS_FT_DIR 2 103 #define BTRFS_FT_CHRDEV 3 104 #define BTRFS_FT_BLKDEV 4 105 #define BTRFS_FT_FIFO 5 106 #define BTRFS_FT_SOCK 6 107 #define BTRFS_FT_SYMLINK 7 108 #define BTRFS_FT_XATTR 8 109 #define BTRFS_FT_MAX 9 110 #define BTRFS_FT_ENCRYPTED 0x80 111 #define BTRFS_INODE_NODATASUM (1U << 0) 112 #define BTRFS_INODE_NODATACOW (1U << 1) 113 #define BTRFS_INODE_READONLY (1U << 2) 114 #define BTRFS_INODE_NOCOMPRESS (1U << 3) 115 #define BTRFS_INODE_PREALLOC (1U << 4) 116 #define BTRFS_INODE_SYNC (1U << 5) 117 #define BTRFS_INODE_IMMUTABLE (1U << 6) 118 #define BTRFS_INODE_APPEND (1U << 7) 119 #define BTRFS_INODE_NODUMP (1U << 8) 120 #define BTRFS_INODE_NOATIME (1U << 9) 121 #define BTRFS_INODE_DIRSYNC (1U << 10) 122 #define BTRFS_INODE_COMPRESS (1U << 11) 123 #define BTRFS_INODE_ROOT_ITEM_INIT (1U << 31) 124 #define BTRFS_INODE_FLAG_MASK (BTRFS_INODE_NODATASUM | BTRFS_INODE_NODATACOW | BTRFS_INODE_READONLY | BTRFS_INODE_NOCOMPRESS | BTRFS_INODE_PREALLOC | BTRFS_INODE_SYNC | BTRFS_INODE_IMMUTABLE | BTRFS_INODE_APPEND | BTRFS_INODE_NODUMP | BTRFS_INODE_NOATIME | BTRFS_INODE_DIRSYNC | BTRFS_INODE_COMPRESS | BTRFS_INODE_ROOT_ITEM_INIT) 125 #define BTRFS_INODE_RO_VERITY (1U << 0) 126 #define BTRFS_INODE_RO_FLAG_MASK (BTRFS_INODE_RO_VERITY) 127 struct btrfs_disk_key { 128 __le64 objectid; 129 __u8 type; 130 __le64 offset; 131 } __attribute__((__packed__)); 132 struct btrfs_key { 133 __u64 objectid; 134 __u8 type; 135 __u64 offset; 136 } __attribute__((__packed__)); 137 struct btrfs_header { 138 __u8 csum[BTRFS_CSUM_SIZE]; 139 __u8 fsid[BTRFS_FSID_SIZE]; 140 __le64 bytenr; 141 __le64 flags; 142 __u8 chunk_tree_uuid[BTRFS_UUID_SIZE]; 143 __le64 generation; 144 __le64 owner; 145 __le32 nritems; 146 __u8 level; 147 } __attribute__((__packed__)); 148 #define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048 149 #define BTRFS_NUM_BACKUP_ROOTS 4 150 struct btrfs_root_backup { 151 __le64 tree_root; 152 __le64 tree_root_gen; 153 __le64 chunk_root; 154 __le64 chunk_root_gen; 155 __le64 extent_root; 156 __le64 extent_root_gen; 157 __le64 fs_root; 158 __le64 fs_root_gen; 159 __le64 dev_root; 160 __le64 dev_root_gen; 161 __le64 csum_root; 162 __le64 csum_root_gen; 163 __le64 total_bytes; 164 __le64 bytes_used; 165 __le64 num_devices; 166 __le64 unused_64[4]; 167 __u8 tree_root_level; 168 __u8 chunk_root_level; 169 __u8 extent_root_level; 170 __u8 fs_root_level; 171 __u8 dev_root_level; 172 __u8 csum_root_level; 173 __u8 unused_8[10]; 174 } __attribute__((__packed__)); 175 struct btrfs_item { 176 struct btrfs_disk_key key; 177 __le32 offset; 178 __le32 size; 179 } __attribute__((__packed__)); 180 struct btrfs_leaf { 181 struct btrfs_header header; 182 struct btrfs_item items[]; 183 } __attribute__((__packed__)); 184 struct btrfs_key_ptr { 185 struct btrfs_disk_key key; 186 __le64 blockptr; 187 __le64 generation; 188 } __attribute__((__packed__)); 189 struct btrfs_node { 190 struct btrfs_header header; 191 struct btrfs_key_ptr ptrs[]; 192 } __attribute__((__packed__)); 193 struct btrfs_dev_item { 194 __le64 devid; 195 __le64 total_bytes; 196 __le64 bytes_used; 197 __le32 io_align; 198 __le32 io_width; 199 __le32 sector_size; 200 __le64 type; 201 __le64 generation; 202 __le64 start_offset; 203 __le32 dev_group; 204 __u8 seek_speed; 205 __u8 bandwidth; 206 __u8 uuid[BTRFS_UUID_SIZE]; 207 __u8 fsid[BTRFS_UUID_SIZE]; 208 } __attribute__((__packed__)); 209 struct btrfs_stripe { 210 __le64 devid; 211 __le64 offset; 212 __u8 dev_uuid[BTRFS_UUID_SIZE]; 213 } __attribute__((__packed__)); 214 struct btrfs_chunk { 215 __le64 length; 216 __le64 owner; 217 __le64 stripe_len; 218 __le64 type; 219 __le32 io_align; 220 __le32 io_width; 221 __le32 sector_size; 222 __le16 num_stripes; 223 __le16 sub_stripes; 224 struct btrfs_stripe stripe; 225 } __attribute__((__packed__)); 226 struct btrfs_super_block { 227 __u8 csum[BTRFS_CSUM_SIZE]; 228 __u8 fsid[BTRFS_FSID_SIZE]; 229 __le64 bytenr; 230 __le64 flags; 231 __le64 magic; 232 __le64 generation; 233 __le64 root; 234 __le64 chunk_root; 235 __le64 log_root; 236 __le64 __unused_log_root_transid; 237 __le64 total_bytes; 238 __le64 bytes_used; 239 __le64 root_dir_objectid; 240 __le64 num_devices; 241 __le32 sectorsize; 242 __le32 nodesize; 243 __le32 __unused_leafsize; 244 __le32 stripesize; 245 __le32 sys_chunk_array_size; 246 __le64 chunk_root_generation; 247 __le64 compat_flags; 248 __le64 compat_ro_flags; 249 __le64 incompat_flags; 250 __le16 csum_type; 251 __u8 root_level; 252 __u8 chunk_root_level; 253 __u8 log_root_level; 254 struct btrfs_dev_item dev_item; 255 char label[BTRFS_LABEL_SIZE]; 256 __le64 cache_generation; 257 __le64 uuid_tree_generation; 258 __u8 metadata_uuid[BTRFS_FSID_SIZE]; 259 __u64 nr_global_roots; 260 __le64 reserved[27]; 261 __u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE]; 262 struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS]; 263 __u8 padding[565]; 264 } __attribute__((__packed__)); 265 #define BTRFS_FREE_SPACE_EXTENT 1 266 #define BTRFS_FREE_SPACE_BITMAP 2 267 struct btrfs_free_space_entry { 268 __le64 offset; 269 __le64 bytes; 270 __u8 type; 271 } __attribute__((__packed__)); 272 struct btrfs_free_space_header { 273 struct btrfs_disk_key location; 274 __le64 generation; 275 __le64 num_entries; 276 __le64 num_bitmaps; 277 } __attribute__((__packed__)); 278 struct btrfs_raid_stride { 279 __le64 devid; 280 __le64 physical; 281 } __attribute__((__packed__)); 282 struct btrfs_stripe_extent { 283 __DECLARE_FLEX_ARRAY(struct btrfs_raid_stride, strides); 284 } __attribute__((__packed__)); 285 #define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0) 286 #define BTRFS_HEADER_FLAG_RELOC (1ULL << 1) 287 #define BTRFS_SUPER_FLAG_ERROR (1ULL << 2) 288 #define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) 289 #define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33) 290 #define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34) 291 #define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35) 292 #define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36) 293 #define BTRFS_SUPER_FLAG_CHANGING_BG_TREE (1ULL << 38) 294 #define BTRFS_SUPER_FLAG_CHANGING_DATA_CSUM (1ULL << 39) 295 #define BTRFS_SUPER_FLAG_CHANGING_META_CSUM (1ULL << 40) 296 struct btrfs_extent_item { 297 __le64 refs; 298 __le64 generation; 299 __le64 flags; 300 } __attribute__((__packed__)); 301 struct btrfs_extent_item_v0 { 302 __le32 refs; 303 } __attribute__((__packed__)); 304 #define BTRFS_EXTENT_FLAG_DATA (1ULL << 0) 305 #define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1) 306 #define BTRFS_BLOCK_FLAG_FULL_BACKREF (1ULL << 8) 307 #define BTRFS_BACKREF_REV_MAX 256 308 #define BTRFS_BACKREF_REV_SHIFT 56 309 #define BTRFS_BACKREF_REV_MASK (((u64) BTRFS_BACKREF_REV_MAX - 1) << BTRFS_BACKREF_REV_SHIFT) 310 #define BTRFS_OLD_BACKREF_REV 0 311 #define BTRFS_MIXED_BACKREF_REV 1 312 #define BTRFS_EXTENT_FLAG_SUPER (1ULL << 48) 313 struct btrfs_tree_block_info { 314 struct btrfs_disk_key key; 315 __u8 level; 316 } __attribute__((__packed__)); 317 struct btrfs_extent_data_ref { 318 __le64 root; 319 __le64 objectid; 320 __le64 offset; 321 __le32 count; 322 } __attribute__((__packed__)); 323 struct btrfs_shared_data_ref { 324 __le32 count; 325 } __attribute__((__packed__)); 326 struct btrfs_extent_owner_ref { 327 __le64 root_id; 328 } __attribute__((__packed__)); 329 struct btrfs_extent_inline_ref { 330 __u8 type; 331 __le64 offset; 332 } __attribute__((__packed__)); 333 struct btrfs_dev_extent { 334 __le64 chunk_tree; 335 __le64 chunk_objectid; 336 __le64 chunk_offset; 337 __le64 length; 338 __u8 chunk_tree_uuid[BTRFS_UUID_SIZE]; 339 } __attribute__((__packed__)); 340 struct btrfs_inode_ref { 341 __le64 index; 342 __le16 name_len; 343 } __attribute__((__packed__)); 344 struct btrfs_inode_extref { 345 __le64 parent_objectid; 346 __le64 index; 347 __le16 name_len; 348 __u8 name[]; 349 } __attribute__((__packed__)); 350 struct btrfs_timespec { 351 __le64 sec; 352 __le32 nsec; 353 } __attribute__((__packed__)); 354 struct btrfs_inode_item { 355 __le64 generation; 356 __le64 transid; 357 __le64 size; 358 __le64 nbytes; 359 __le64 block_group; 360 __le32 nlink; 361 __le32 uid; 362 __le32 gid; 363 __le32 mode; 364 __le64 rdev; 365 __le64 flags; 366 __le64 sequence; 367 __le64 reserved[4]; 368 struct btrfs_timespec atime; 369 struct btrfs_timespec ctime; 370 struct btrfs_timespec mtime; 371 struct btrfs_timespec otime; 372 } __attribute__((__packed__)); 373 struct btrfs_dir_log_item { 374 __le64 end; 375 } __attribute__((__packed__)); 376 struct btrfs_dir_item { 377 struct btrfs_disk_key location; 378 __le64 transid; 379 __le16 data_len; 380 __le16 name_len; 381 __u8 type; 382 } __attribute__((__packed__)); 383 #define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0) 384 #define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48) 385 struct btrfs_root_item { 386 struct btrfs_inode_item inode; 387 __le64 generation; 388 __le64 root_dirid; 389 __le64 bytenr; 390 __le64 byte_limit; 391 __le64 bytes_used; 392 __le64 last_snapshot; 393 __le64 flags; 394 __le32 refs; 395 struct btrfs_disk_key drop_progress; 396 __u8 drop_level; 397 __u8 level; 398 __le64 generation_v2; 399 __u8 uuid[BTRFS_UUID_SIZE]; 400 __u8 parent_uuid[BTRFS_UUID_SIZE]; 401 __u8 received_uuid[BTRFS_UUID_SIZE]; 402 __le64 ctransid; 403 __le64 otransid; 404 __le64 stransid; 405 __le64 rtransid; 406 struct btrfs_timespec ctime; 407 struct btrfs_timespec otime; 408 struct btrfs_timespec stime; 409 struct btrfs_timespec rtime; 410 __le64 reserved[8]; 411 } __attribute__((__packed__)); 412 struct btrfs_root_ref { 413 __le64 dirid; 414 __le64 sequence; 415 __le16 name_len; 416 } __attribute__((__packed__)); 417 struct btrfs_disk_balance_args { 418 __le64 profiles; 419 union { 420 __le64 usage; 421 struct { 422 __le32 usage_min; 423 __le32 usage_max; 424 }; 425 }; 426 __le64 devid; 427 __le64 pstart; 428 __le64 pend; 429 __le64 vstart; 430 __le64 vend; 431 __le64 target; 432 __le64 flags; 433 union { 434 __le64 limit; 435 struct { 436 __le32 limit_min; 437 __le32 limit_max; 438 }; 439 }; 440 __le32 stripes_min; 441 __le32 stripes_max; 442 __le64 unused[6]; 443 } __attribute__((__packed__)); 444 struct btrfs_balance_item { 445 __le64 flags; 446 struct btrfs_disk_balance_args data; 447 struct btrfs_disk_balance_args meta; 448 struct btrfs_disk_balance_args sys; 449 __le64 unused[4]; 450 } __attribute__((__packed__)); 451 enum { 452 BTRFS_FILE_EXTENT_INLINE = 0, 453 BTRFS_FILE_EXTENT_REG = 1, 454 BTRFS_FILE_EXTENT_PREALLOC = 2, 455 BTRFS_NR_FILE_EXTENT_TYPES = 3, 456 }; 457 struct btrfs_file_extent_item { 458 __le64 generation; 459 __le64 ram_bytes; 460 __u8 compression; 461 __u8 encryption; 462 __le16 other_encoding; 463 __u8 type; 464 __le64 disk_bytenr; 465 __le64 disk_num_bytes; 466 __le64 offset; 467 __le64 num_bytes; 468 } __attribute__((__packed__)); 469 struct btrfs_csum_item { 470 __u8 csum; 471 } __attribute__((__packed__)); 472 struct btrfs_dev_stats_item { 473 __le64 values[BTRFS_DEV_STAT_VALUES_MAX]; 474 } __attribute__((__packed__)); 475 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 476 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 477 struct btrfs_dev_replace_item { 478 __le64 src_devid; 479 __le64 cursor_left; 480 __le64 cursor_right; 481 __le64 cont_reading_from_srcdev_mode; 482 __le64 replace_state; 483 __le64 time_started; 484 __le64 time_stopped; 485 __le64 num_write_errors; 486 __le64 num_uncorrectable_read_errors; 487 } __attribute__((__packed__)); 488 #define BTRFS_BLOCK_GROUP_DATA (1ULL << 0) 489 #define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1) 490 #define BTRFS_BLOCK_GROUP_METADATA (1ULL << 2) 491 #define BTRFS_BLOCK_GROUP_RAID0 (1ULL << 3) 492 #define BTRFS_BLOCK_GROUP_RAID1 (1ULL << 4) 493 #define BTRFS_BLOCK_GROUP_DUP (1ULL << 5) 494 #define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6) 495 #define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7) 496 #define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8) 497 #define BTRFS_BLOCK_GROUP_RAID1C3 (1ULL << 9) 498 #define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10) 499 #define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV) 500 #define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA) 501 #define BTRFS_BLOCK_GROUP_PROFILE_MASK (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4 | BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6 | BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID10) 502 #define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6) 503 #define BTRFS_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4) 504 #define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48) 505 #define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49) 506 #define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | BTRFS_AVAIL_ALLOC_BIT_SINGLE) 507 struct btrfs_block_group_item { 508 __le64 used; 509 __le64 chunk_objectid; 510 __le64 flags; 511 } __attribute__((__packed__)); 512 struct btrfs_free_space_info { 513 __le32 extent_count; 514 __le32 flags; 515 } __attribute__((__packed__)); 516 #define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0) 517 #define BTRFS_QGROUP_LEVEL_SHIFT 48 518 #define BTRFS_QGROUP_STATUS_FLAG_ON (1ULL << 0) 519 #define BTRFS_QGROUP_STATUS_FLAG_RESCAN (1ULL << 1) 520 #define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2) 521 #define BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE (1ULL << 3) 522 #define BTRFS_QGROUP_STATUS_FLAGS_MASK (BTRFS_QGROUP_STATUS_FLAG_ON | BTRFS_QGROUP_STATUS_FLAG_RESCAN | BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT | BTRFS_QGROUP_STATUS_FLAG_SIMPLE_MODE) 523 #define BTRFS_QGROUP_STATUS_VERSION 1 524 struct btrfs_qgroup_status_item { 525 __le64 version; 526 __le64 generation; 527 __le64 flags; 528 __le64 rescan; 529 __le64 enable_gen; 530 } __attribute__((__packed__)); 531 struct btrfs_qgroup_info_item { 532 __le64 generation; 533 __le64 rfer; 534 __le64 rfer_cmpr; 535 __le64 excl; 536 __le64 excl_cmpr; 537 } __attribute__((__packed__)); 538 struct btrfs_qgroup_limit_item { 539 __le64 flags; 540 __le64 max_rfer; 541 __le64 max_excl; 542 __le64 rsv_rfer; 543 __le64 rsv_excl; 544 } __attribute__((__packed__)); 545 struct btrfs_verity_descriptor_item { 546 __le64 size; 547 __le64 reserved[2]; 548 __u8 encryption; 549 } __attribute__((__packed__)); 550 #endif 551