1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _BTRFS_CTREE_H_ 20 #define _BTRFS_CTREE_H_ 21 #include <linux/btrfs.h> 22 #include <linux/types.h> 23 #include <stddef.h> 24 #define BTRFS_MAGIC 0x4D5F53665248425FULL 25 #define BTRFS_MAX_LEVEL 8 26 #define BTRFS_NAME_LEN 255 27 #define BTRFS_LINK_MAX 65535U 28 #define BTRFS_ROOT_TREE_OBJECTID 1ULL 29 #define BTRFS_EXTENT_TREE_OBJECTID 2ULL 30 #define BTRFS_CHUNK_TREE_OBJECTID 3ULL 31 #define BTRFS_DEV_TREE_OBJECTID 4ULL 32 #define BTRFS_FS_TREE_OBJECTID 5ULL 33 #define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL 34 #define BTRFS_CSUM_TREE_OBJECTID 7ULL 35 #define BTRFS_QUOTA_TREE_OBJECTID 8ULL 36 #define BTRFS_UUID_TREE_OBJECTID 9ULL 37 #define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL 38 #define BTRFS_BLOCK_GROUP_TREE_OBJECTID 11ULL 39 #define BTRFS_DEV_STATS_OBJECTID 0ULL 40 #define BTRFS_BALANCE_OBJECTID - 4ULL 41 #define BTRFS_ORPHAN_OBJECTID - 5ULL 42 #define BTRFS_TREE_LOG_OBJECTID - 6ULL 43 #define BTRFS_TREE_LOG_FIXUP_OBJECTID - 7ULL 44 #define BTRFS_TREE_RELOC_OBJECTID - 8ULL 45 #define BTRFS_DATA_RELOC_TREE_OBJECTID - 9ULL 46 #define BTRFS_EXTENT_CSUM_OBJECTID - 10ULL 47 #define BTRFS_FREE_SPACE_OBJECTID - 11ULL 48 #define BTRFS_FREE_INO_OBJECTID - 12ULL 49 #define BTRFS_MULTIPLE_OBJECTIDS - 255ULL 50 #define BTRFS_FIRST_FREE_OBJECTID 256ULL 51 #define BTRFS_LAST_FREE_OBJECTID - 256ULL 52 #define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL 53 #define BTRFS_DEV_ITEMS_OBJECTID 1ULL 54 #define BTRFS_BTREE_INODE_OBJECTID 1 55 #define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2 56 #define BTRFS_DEV_REPLACE_DEVID 0ULL 57 #define BTRFS_INODE_ITEM_KEY 1 58 #define BTRFS_INODE_REF_KEY 12 59 #define BTRFS_INODE_EXTREF_KEY 13 60 #define BTRFS_XATTR_ITEM_KEY 24 61 #define BTRFS_VERITY_DESC_ITEM_KEY 36 62 #define BTRFS_VERITY_MERKLE_ITEM_KEY 37 63 #define BTRFS_ORPHAN_ITEM_KEY 48 64 #define BTRFS_DIR_LOG_ITEM_KEY 60 65 #define BTRFS_DIR_LOG_INDEX_KEY 72 66 #define BTRFS_DIR_ITEM_KEY 84 67 #define BTRFS_DIR_INDEX_KEY 96 68 #define BTRFS_EXTENT_DATA_KEY 108 69 #define BTRFS_EXTENT_CSUM_KEY 128 70 #define BTRFS_ROOT_ITEM_KEY 132 71 #define BTRFS_ROOT_BACKREF_KEY 144 72 #define BTRFS_ROOT_REF_KEY 156 73 #define BTRFS_EXTENT_ITEM_KEY 168 74 #define BTRFS_METADATA_ITEM_KEY 169 75 #define BTRFS_TREE_BLOCK_REF_KEY 176 76 #define BTRFS_EXTENT_DATA_REF_KEY 178 77 #define BTRFS_EXTENT_REF_V0_KEY 180 78 #define BTRFS_SHARED_BLOCK_REF_KEY 182 79 #define BTRFS_SHARED_DATA_REF_KEY 184 80 #define BTRFS_BLOCK_GROUP_ITEM_KEY 192 81 #define BTRFS_FREE_SPACE_INFO_KEY 198 82 #define BTRFS_FREE_SPACE_EXTENT_KEY 199 83 #define BTRFS_FREE_SPACE_BITMAP_KEY 200 84 #define BTRFS_DEV_EXTENT_KEY 204 85 #define BTRFS_DEV_ITEM_KEY 216 86 #define BTRFS_CHUNK_ITEM_KEY 228 87 #define BTRFS_QGROUP_STATUS_KEY 240 88 #define BTRFS_QGROUP_INFO_KEY 242 89 #define BTRFS_QGROUP_LIMIT_KEY 244 90 #define BTRFS_QGROUP_RELATION_KEY 246 91 #define BTRFS_BALANCE_ITEM_KEY 248 92 #define BTRFS_TEMPORARY_ITEM_KEY 248 93 #define BTRFS_DEV_STATS_KEY 249 94 #define BTRFS_PERSISTENT_ITEM_KEY 249 95 #define BTRFS_DEV_REPLACE_KEY 250 96 #if BTRFS_UUID_SIZE != 16 97 #error "UUID items require BTRFS_UUID_SIZE == 16!" 98 #endif 99 #define BTRFS_UUID_KEY_SUBVOL 251 100 #define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252 101 #define BTRFS_STRING_ITEM_KEY 253 102 #define BTRFS_MAX_METADATA_BLOCKSIZE 65536 103 #define BTRFS_CSUM_SIZE 32 104 enum btrfs_csum_type { 105 BTRFS_CSUM_TYPE_CRC32 = 0, 106 BTRFS_CSUM_TYPE_XXHASH = 1, 107 BTRFS_CSUM_TYPE_SHA256 = 2, 108 BTRFS_CSUM_TYPE_BLAKE2 = 3, 109 }; 110 #define BTRFS_FT_UNKNOWN 0 111 #define BTRFS_FT_REG_FILE 1 112 #define BTRFS_FT_DIR 2 113 #define BTRFS_FT_CHRDEV 3 114 #define BTRFS_FT_BLKDEV 4 115 #define BTRFS_FT_FIFO 5 116 #define BTRFS_FT_SOCK 6 117 #define BTRFS_FT_SYMLINK 7 118 #define BTRFS_FT_XATTR 8 119 #define BTRFS_FT_MAX 9 120 #define BTRFS_FT_ENCRYPTED 0x80 121 #define BTRFS_INODE_NODATASUM (1U << 0) 122 #define BTRFS_INODE_NODATACOW (1U << 1) 123 #define BTRFS_INODE_READONLY (1U << 2) 124 #define BTRFS_INODE_NOCOMPRESS (1U << 3) 125 #define BTRFS_INODE_PREALLOC (1U << 4) 126 #define BTRFS_INODE_SYNC (1U << 5) 127 #define BTRFS_INODE_IMMUTABLE (1U << 6) 128 #define BTRFS_INODE_APPEND (1U << 7) 129 #define BTRFS_INODE_NODUMP (1U << 8) 130 #define BTRFS_INODE_NOATIME (1U << 9) 131 #define BTRFS_INODE_DIRSYNC (1U << 10) 132 #define BTRFS_INODE_COMPRESS (1U << 11) 133 #define BTRFS_INODE_ROOT_ITEM_INIT (1U << 31) 134 #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) 135 #define BTRFS_INODE_RO_VERITY (1U << 0) 136 #define BTRFS_INODE_RO_FLAG_MASK (BTRFS_INODE_RO_VERITY) 137 struct btrfs_disk_key { 138 __le64 objectid; 139 __u8 type; 140 __le64 offset; 141 } __attribute__((__packed__)); 142 struct btrfs_key { 143 __u64 objectid; 144 __u8 type; 145 __u64 offset; 146 } __attribute__((__packed__)); 147 struct btrfs_header { 148 __u8 csum[BTRFS_CSUM_SIZE]; 149 __u8 fsid[BTRFS_FSID_SIZE]; 150 __le64 bytenr; 151 __le64 flags; 152 __u8 chunk_tree_uuid[BTRFS_UUID_SIZE]; 153 __le64 generation; 154 __le64 owner; 155 __le32 nritems; 156 __u8 level; 157 } __attribute__((__packed__)); 158 #define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048 159 #define BTRFS_NUM_BACKUP_ROOTS 4 160 struct btrfs_root_backup { 161 __le64 tree_root; 162 __le64 tree_root_gen; 163 __le64 chunk_root; 164 __le64 chunk_root_gen; 165 __le64 extent_root; 166 __le64 extent_root_gen; 167 __le64 fs_root; 168 __le64 fs_root_gen; 169 __le64 dev_root; 170 __le64 dev_root_gen; 171 __le64 csum_root; 172 __le64 csum_root_gen; 173 __le64 total_bytes; 174 __le64 bytes_used; 175 __le64 num_devices; 176 __le64 unused_64[4]; 177 __u8 tree_root_level; 178 __u8 chunk_root_level; 179 __u8 extent_root_level; 180 __u8 fs_root_level; 181 __u8 dev_root_level; 182 __u8 csum_root_level; 183 __u8 unused_8[10]; 184 } __attribute__((__packed__)); 185 struct btrfs_item { 186 struct btrfs_disk_key key; 187 __le32 offset; 188 __le32 size; 189 } __attribute__((__packed__)); 190 struct btrfs_leaf { 191 struct btrfs_header header; 192 struct btrfs_item items[]; 193 } __attribute__((__packed__)); 194 struct btrfs_key_ptr { 195 struct btrfs_disk_key key; 196 __le64 blockptr; 197 __le64 generation; 198 } __attribute__((__packed__)); 199 struct btrfs_node { 200 struct btrfs_header header; 201 struct btrfs_key_ptr ptrs[]; 202 } __attribute__((__packed__)); 203 struct btrfs_dev_item { 204 __le64 devid; 205 __le64 total_bytes; 206 __le64 bytes_used; 207 __le32 io_align; 208 __le32 io_width; 209 __le32 sector_size; 210 __le64 type; 211 __le64 generation; 212 __le64 start_offset; 213 __le32 dev_group; 214 __u8 seek_speed; 215 __u8 bandwidth; 216 __u8 uuid[BTRFS_UUID_SIZE]; 217 __u8 fsid[BTRFS_UUID_SIZE]; 218 } __attribute__((__packed__)); 219 struct btrfs_stripe { 220 __le64 devid; 221 __le64 offset; 222 __u8 dev_uuid[BTRFS_UUID_SIZE]; 223 } __attribute__((__packed__)); 224 struct btrfs_chunk { 225 __le64 length; 226 __le64 owner; 227 __le64 stripe_len; 228 __le64 type; 229 __le32 io_align; 230 __le32 io_width; 231 __le32 sector_size; 232 __le16 num_stripes; 233 __le16 sub_stripes; 234 struct btrfs_stripe stripe; 235 } __attribute__((__packed__)); 236 struct btrfs_super_block { 237 __u8 csum[BTRFS_CSUM_SIZE]; 238 __u8 fsid[BTRFS_FSID_SIZE]; 239 __le64 bytenr; 240 __le64 flags; 241 __le64 magic; 242 __le64 generation; 243 __le64 root; 244 __le64 chunk_root; 245 __le64 log_root; 246 __le64 __unused_log_root_transid; 247 __le64 total_bytes; 248 __le64 bytes_used; 249 __le64 root_dir_objectid; 250 __le64 num_devices; 251 __le32 sectorsize; 252 __le32 nodesize; 253 __le32 __unused_leafsize; 254 __le32 stripesize; 255 __le32 sys_chunk_array_size; 256 __le64 chunk_root_generation; 257 __le64 compat_flags; 258 __le64 compat_ro_flags; 259 __le64 incompat_flags; 260 __le16 csum_type; 261 __u8 root_level; 262 __u8 chunk_root_level; 263 __u8 log_root_level; 264 struct btrfs_dev_item dev_item; 265 char label[BTRFS_LABEL_SIZE]; 266 __le64 cache_generation; 267 __le64 uuid_tree_generation; 268 __u8 metadata_uuid[BTRFS_FSID_SIZE]; 269 __u64 nr_global_roots; 270 __le64 reserved[27]; 271 __u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE]; 272 struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS]; 273 __u8 padding[565]; 274 } __attribute__((__packed__)); 275 #define BTRFS_FREE_SPACE_EXTENT 1 276 #define BTRFS_FREE_SPACE_BITMAP 2 277 struct btrfs_free_space_entry { 278 __le64 offset; 279 __le64 bytes; 280 __u8 type; 281 } __attribute__((__packed__)); 282 struct btrfs_free_space_header { 283 struct btrfs_disk_key location; 284 __le64 generation; 285 __le64 num_entries; 286 __le64 num_bitmaps; 287 } __attribute__((__packed__)); 288 #define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0) 289 #define BTRFS_HEADER_FLAG_RELOC (1ULL << 1) 290 #define BTRFS_SUPER_FLAG_ERROR (1ULL << 2) 291 #define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) 292 #define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33) 293 #define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34) 294 #define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35) 295 #define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36) 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_inline_ref { 327 __u8 type; 328 __le64 offset; 329 } __attribute__((__packed__)); 330 struct btrfs_dev_extent { 331 __le64 chunk_tree; 332 __le64 chunk_objectid; 333 __le64 chunk_offset; 334 __le64 length; 335 __u8 chunk_tree_uuid[BTRFS_UUID_SIZE]; 336 } __attribute__((__packed__)); 337 struct btrfs_inode_ref { 338 __le64 index; 339 __le16 name_len; 340 } __attribute__((__packed__)); 341 struct btrfs_inode_extref { 342 __le64 parent_objectid; 343 __le64 index; 344 __le16 name_len; 345 __u8 name[]; 346 } __attribute__((__packed__)); 347 struct btrfs_timespec { 348 __le64 sec; 349 __le32 nsec; 350 } __attribute__((__packed__)); 351 struct btrfs_inode_item { 352 __le64 generation; 353 __le64 transid; 354 __le64 size; 355 __le64 nbytes; 356 __le64 block_group; 357 __le32 nlink; 358 __le32 uid; 359 __le32 gid; 360 __le32 mode; 361 __le64 rdev; 362 __le64 flags; 363 __le64 sequence; 364 __le64 reserved[4]; 365 struct btrfs_timespec atime; 366 struct btrfs_timespec ctime; 367 struct btrfs_timespec mtime; 368 struct btrfs_timespec otime; 369 } __attribute__((__packed__)); 370 struct btrfs_dir_log_item { 371 __le64 end; 372 } __attribute__((__packed__)); 373 struct btrfs_dir_item { 374 struct btrfs_disk_key location; 375 __le64 transid; 376 __le16 data_len; 377 __le16 name_len; 378 __u8 type; 379 } __attribute__((__packed__)); 380 #define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0) 381 #define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48) 382 struct btrfs_root_item { 383 struct btrfs_inode_item inode; 384 __le64 generation; 385 __le64 root_dirid; 386 __le64 bytenr; 387 __le64 byte_limit; 388 __le64 bytes_used; 389 __le64 last_snapshot; 390 __le64 flags; 391 __le32 refs; 392 struct btrfs_disk_key drop_progress; 393 __u8 drop_level; 394 __u8 level; 395 __le64 generation_v2; 396 __u8 uuid[BTRFS_UUID_SIZE]; 397 __u8 parent_uuid[BTRFS_UUID_SIZE]; 398 __u8 received_uuid[BTRFS_UUID_SIZE]; 399 __le64 ctransid; 400 __le64 otransid; 401 __le64 stransid; 402 __le64 rtransid; 403 struct btrfs_timespec ctime; 404 struct btrfs_timespec otime; 405 struct btrfs_timespec stime; 406 struct btrfs_timespec rtime; 407 __le64 reserved[8]; 408 } __attribute__((__packed__)); 409 struct btrfs_root_ref { 410 __le64 dirid; 411 __le64 sequence; 412 __le16 name_len; 413 } __attribute__((__packed__)); 414 struct btrfs_disk_balance_args { 415 __le64 profiles; 416 union { 417 __le64 usage; 418 struct { 419 __le32 usage_min; 420 __le32 usage_max; 421 }; 422 }; 423 __le64 devid; 424 __le64 pstart; 425 __le64 pend; 426 __le64 vstart; 427 __le64 vend; 428 __le64 target; 429 __le64 flags; 430 union { 431 __le64 limit; 432 struct { 433 __le32 limit_min; 434 __le32 limit_max; 435 }; 436 }; 437 __le32 stripes_min; 438 __le32 stripes_max; 439 __le64 unused[6]; 440 } __attribute__((__packed__)); 441 struct btrfs_balance_item { 442 __le64 flags; 443 struct btrfs_disk_balance_args data; 444 struct btrfs_disk_balance_args meta; 445 struct btrfs_disk_balance_args sys; 446 __le64 unused[4]; 447 } __attribute__((__packed__)); 448 enum { 449 BTRFS_FILE_EXTENT_INLINE = 0, 450 BTRFS_FILE_EXTENT_REG = 1, 451 BTRFS_FILE_EXTENT_PREALLOC = 2, 452 BTRFS_NR_FILE_EXTENT_TYPES = 3, 453 }; 454 struct btrfs_file_extent_item { 455 __le64 generation; 456 __le64 ram_bytes; 457 __u8 compression; 458 __u8 encryption; 459 __le16 other_encoding; 460 __u8 type; 461 __le64 disk_bytenr; 462 __le64 disk_num_bytes; 463 __le64 offset; 464 __le64 num_bytes; 465 } __attribute__((__packed__)); 466 struct btrfs_csum_item { 467 __u8 csum; 468 } __attribute__((__packed__)); 469 struct btrfs_dev_stats_item { 470 __le64 values[BTRFS_DEV_STAT_VALUES_MAX]; 471 } __attribute__((__packed__)); 472 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 473 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 474 struct btrfs_dev_replace_item { 475 __le64 src_devid; 476 __le64 cursor_left; 477 __le64 cursor_right; 478 __le64 cont_reading_from_srcdev_mode; 479 __le64 replace_state; 480 __le64 time_started; 481 __le64 time_stopped; 482 __le64 num_write_errors; 483 __le64 num_uncorrectable_read_errors; 484 } __attribute__((__packed__)); 485 #define BTRFS_BLOCK_GROUP_DATA (1ULL << 0) 486 #define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1) 487 #define BTRFS_BLOCK_GROUP_METADATA (1ULL << 2) 488 #define BTRFS_BLOCK_GROUP_RAID0 (1ULL << 3) 489 #define BTRFS_BLOCK_GROUP_RAID1 (1ULL << 4) 490 #define BTRFS_BLOCK_GROUP_DUP (1ULL << 5) 491 #define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6) 492 #define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7) 493 #define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8) 494 #define BTRFS_BLOCK_GROUP_RAID1C3 (1ULL << 9) 495 #define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10) 496 #define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV) 497 #define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA) 498 #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) 499 #define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6) 500 #define BTRFS_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4) 501 #define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48) 502 #define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49) 503 #define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | BTRFS_AVAIL_ALLOC_BIT_SINGLE) 504 struct btrfs_block_group_item { 505 __le64 used; 506 __le64 chunk_objectid; 507 __le64 flags; 508 } __attribute__((__packed__)); 509 struct btrfs_free_space_info { 510 __le32 extent_count; 511 __le32 flags; 512 } __attribute__((__packed__)); 513 #define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0) 514 #define BTRFS_QGROUP_LEVEL_SHIFT 48 515 #define BTRFS_QGROUP_STATUS_FLAG_ON (1ULL << 0) 516 #define BTRFS_QGROUP_STATUS_FLAG_RESCAN (1ULL << 1) 517 #define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2) 518 #define BTRFS_QGROUP_STATUS_FLAGS_MASK (BTRFS_QGROUP_STATUS_FLAG_ON | BTRFS_QGROUP_STATUS_FLAG_RESCAN | BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT) 519 #define BTRFS_QGROUP_STATUS_VERSION 1 520 struct btrfs_qgroup_status_item { 521 __le64 version; 522 __le64 generation; 523 __le64 flags; 524 __le64 rescan; 525 } __attribute__((__packed__)); 526 struct btrfs_qgroup_info_item { 527 __le64 generation; 528 __le64 rfer; 529 __le64 rfer_cmpr; 530 __le64 excl; 531 __le64 excl_cmpr; 532 } __attribute__((__packed__)); 533 struct btrfs_qgroup_limit_item { 534 __le64 flags; 535 __le64 max_rfer; 536 __le64 max_excl; 537 __le64 rsv_rfer; 538 __le64 rsv_excl; 539 } __attribute__((__packed__)); 540 struct btrfs_verity_descriptor_item { 541 __le64 size; 542 __le64 reserved[2]; 543 __u8 encryption; 544 } __attribute__((__packed__)); 545 #endif 546