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 #define BTRFS_ROOT_TREE_OBJECTID 1ULL 24 #define BTRFS_EXTENT_TREE_OBJECTID 2ULL 25 #define BTRFS_CHUNK_TREE_OBJECTID 3ULL 26 #define BTRFS_DEV_TREE_OBJECTID 4ULL 27 #define BTRFS_FS_TREE_OBJECTID 5ULL 28 #define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL 29 #define BTRFS_CSUM_TREE_OBJECTID 7ULL 30 #define BTRFS_QUOTA_TREE_OBJECTID 8ULL 31 #define BTRFS_UUID_TREE_OBJECTID 9ULL 32 #define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL 33 #define BTRFS_DEV_STATS_OBJECTID 0ULL 34 #define BTRFS_BALANCE_OBJECTID - 4ULL 35 #define BTRFS_ORPHAN_OBJECTID - 5ULL 36 #define BTRFS_TREE_LOG_OBJECTID - 6ULL 37 #define BTRFS_TREE_LOG_FIXUP_OBJECTID - 7ULL 38 #define BTRFS_TREE_RELOC_OBJECTID - 8ULL 39 #define BTRFS_DATA_RELOC_TREE_OBJECTID - 9ULL 40 #define BTRFS_EXTENT_CSUM_OBJECTID - 10ULL 41 #define BTRFS_FREE_SPACE_OBJECTID - 11ULL 42 #define BTRFS_FREE_INO_OBJECTID - 12ULL 43 #define BTRFS_MULTIPLE_OBJECTIDS - 255ULL 44 #define BTRFS_FIRST_FREE_OBJECTID 256ULL 45 #define BTRFS_LAST_FREE_OBJECTID - 256ULL 46 #define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL 47 #define BTRFS_DEV_ITEMS_OBJECTID 1ULL 48 #define BTRFS_BTREE_INODE_OBJECTID 1 49 #define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2 50 #define BTRFS_DEV_REPLACE_DEVID 0ULL 51 #define BTRFS_INODE_ITEM_KEY 1 52 #define BTRFS_INODE_REF_KEY 12 53 #define BTRFS_INODE_EXTREF_KEY 13 54 #define BTRFS_XATTR_ITEM_KEY 24 55 #define BTRFS_ORPHAN_ITEM_KEY 48 56 #define BTRFS_DIR_LOG_ITEM_KEY 60 57 #define BTRFS_DIR_LOG_INDEX_KEY 72 58 #define BTRFS_DIR_ITEM_KEY 84 59 #define BTRFS_DIR_INDEX_KEY 96 60 #define BTRFS_EXTENT_DATA_KEY 108 61 #define BTRFS_EXTENT_CSUM_KEY 128 62 #define BTRFS_ROOT_ITEM_KEY 132 63 #define BTRFS_ROOT_BACKREF_KEY 144 64 #define BTRFS_ROOT_REF_KEY 156 65 #define BTRFS_EXTENT_ITEM_KEY 168 66 #define BTRFS_METADATA_ITEM_KEY 169 67 #define BTRFS_TREE_BLOCK_REF_KEY 176 68 #define BTRFS_EXTENT_DATA_REF_KEY 178 69 #define BTRFS_EXTENT_REF_V0_KEY 180 70 #define BTRFS_SHARED_BLOCK_REF_KEY 182 71 #define BTRFS_SHARED_DATA_REF_KEY 184 72 #define BTRFS_BLOCK_GROUP_ITEM_KEY 192 73 #define BTRFS_FREE_SPACE_INFO_KEY 198 74 #define BTRFS_FREE_SPACE_EXTENT_KEY 199 75 #define BTRFS_FREE_SPACE_BITMAP_KEY 200 76 #define BTRFS_DEV_EXTENT_KEY 204 77 #define BTRFS_DEV_ITEM_KEY 216 78 #define BTRFS_CHUNK_ITEM_KEY 228 79 #define BTRFS_QGROUP_STATUS_KEY 240 80 #define BTRFS_QGROUP_INFO_KEY 242 81 #define BTRFS_QGROUP_LIMIT_KEY 244 82 #define BTRFS_QGROUP_RELATION_KEY 246 83 #define BTRFS_BALANCE_ITEM_KEY 248 84 #define BTRFS_TEMPORARY_ITEM_KEY 248 85 #define BTRFS_DEV_STATS_KEY 249 86 #define BTRFS_PERSISTENT_ITEM_KEY 249 87 #define BTRFS_DEV_REPLACE_KEY 250 88 #if BTRFS_UUID_SIZE != 16 89 #error "UUID items require BTRFS_UUID_SIZE == 16!" 90 #endif 91 #define BTRFS_UUID_KEY_SUBVOL 251 92 #define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252 93 #define BTRFS_STRING_ITEM_KEY 253 94 #define BTRFS_CSUM_SIZE 32 95 #define BTRFS_CSUM_TYPE_CRC32 0 96 #define BTRFS_FT_UNKNOWN 0 97 #define BTRFS_FT_REG_FILE 1 98 #define BTRFS_FT_DIR 2 99 #define BTRFS_FT_CHRDEV 3 100 #define BTRFS_FT_BLKDEV 4 101 #define BTRFS_FT_FIFO 5 102 #define BTRFS_FT_SOCK 6 103 #define BTRFS_FT_SYMLINK 7 104 #define BTRFS_FT_XATTR 8 105 #define BTRFS_FT_MAX 9 106 struct btrfs_disk_key { 107 __le64 objectid; 108 __u8 type; 109 __le64 offset; 110 } __attribute__((__packed__)); 111 struct btrfs_key { 112 __u64 objectid; 113 __u8 type; 114 __u64 offset; 115 } __attribute__((__packed__)); 116 struct btrfs_dev_item { 117 __le64 devid; 118 __le64 total_bytes; 119 __le64 bytes_used; 120 __le32 io_align; 121 __le32 io_width; 122 __le32 sector_size; 123 __le64 type; 124 __le64 generation; 125 __le64 start_offset; 126 __le32 dev_group; 127 __u8 seek_speed; 128 __u8 bandwidth; 129 __u8 uuid[BTRFS_UUID_SIZE]; 130 __u8 fsid[BTRFS_UUID_SIZE]; 131 } __attribute__((__packed__)); 132 struct btrfs_stripe { 133 __le64 devid; 134 __le64 offset; 135 __u8 dev_uuid[BTRFS_UUID_SIZE]; 136 } __attribute__((__packed__)); 137 struct btrfs_chunk { 138 __le64 length; 139 __le64 owner; 140 __le64 stripe_len; 141 __le64 type; 142 __le32 io_align; 143 __le32 io_width; 144 __le32 sector_size; 145 __le16 num_stripes; 146 __le16 sub_stripes; 147 struct btrfs_stripe stripe; 148 } __attribute__((__packed__)); 149 #define BTRFS_FREE_SPACE_EXTENT 1 150 #define BTRFS_FREE_SPACE_BITMAP 2 151 struct btrfs_free_space_entry { 152 __le64 offset; 153 __le64 bytes; 154 __u8 type; 155 } __attribute__((__packed__)); 156 struct btrfs_free_space_header { 157 struct btrfs_disk_key location; 158 __le64 generation; 159 __le64 num_entries; 160 __le64 num_bitmaps; 161 } __attribute__((__packed__)); 162 #define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0) 163 #define BTRFS_HEADER_FLAG_RELOC (1ULL << 1) 164 #define BTRFS_SUPER_FLAG_ERROR (1ULL << 2) 165 #define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32) 166 #define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33) 167 #define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34) 168 #define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35) 169 #define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36) 170 struct btrfs_extent_item { 171 __le64 refs; 172 __le64 generation; 173 __le64 flags; 174 } __attribute__((__packed__)); 175 struct btrfs_extent_item_v0 { 176 __le32 refs; 177 } __attribute__((__packed__)); 178 #define BTRFS_EXTENT_FLAG_DATA (1ULL << 0) 179 #define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1) 180 #define BTRFS_BLOCK_FLAG_FULL_BACKREF (1ULL << 8) 181 #define BTRFS_EXTENT_FLAG_SUPER (1ULL << 48) 182 struct btrfs_tree_block_info { 183 struct btrfs_disk_key key; 184 __u8 level; 185 } __attribute__((__packed__)); 186 struct btrfs_extent_data_ref { 187 __le64 root; 188 __le64 objectid; 189 __le64 offset; 190 __le32 count; 191 } __attribute__((__packed__)); 192 struct btrfs_shared_data_ref { 193 __le32 count; 194 } __attribute__((__packed__)); 195 struct btrfs_extent_inline_ref { 196 __u8 type; 197 __le64 offset; 198 } __attribute__((__packed__)); 199 struct btrfs_extent_ref_v0 { 200 __le64 root; 201 __le64 generation; 202 __le64 objectid; 203 __le32 count; 204 } __attribute__((__packed__)); 205 struct btrfs_dev_extent { 206 __le64 chunk_tree; 207 __le64 chunk_objectid; 208 __le64 chunk_offset; 209 __le64 length; 210 __u8 chunk_tree_uuid[BTRFS_UUID_SIZE]; 211 } __attribute__((__packed__)); 212 struct btrfs_inode_ref { 213 __le64 index; 214 __le16 name_len; 215 } __attribute__((__packed__)); 216 struct btrfs_inode_extref { 217 __le64 parent_objectid; 218 __le64 index; 219 __le16 name_len; 220 __u8 name[0]; 221 } __attribute__((__packed__)); 222 struct btrfs_timespec { 223 __le64 sec; 224 __le32 nsec; 225 } __attribute__((__packed__)); 226 struct btrfs_inode_item { 227 __le64 generation; 228 __le64 transid; 229 __le64 size; 230 __le64 nbytes; 231 __le64 block_group; 232 __le32 nlink; 233 __le32 uid; 234 __le32 gid; 235 __le32 mode; 236 __le64 rdev; 237 __le64 flags; 238 __le64 sequence; 239 __le64 reserved[4]; 240 struct btrfs_timespec atime; 241 struct btrfs_timespec ctime; 242 struct btrfs_timespec mtime; 243 struct btrfs_timespec otime; 244 } __attribute__((__packed__)); 245 struct btrfs_dir_log_item { 246 __le64 end; 247 } __attribute__((__packed__)); 248 struct btrfs_dir_item { 249 struct btrfs_disk_key location; 250 __le64 transid; 251 __le16 data_len; 252 __le16 name_len; 253 __u8 type; 254 } __attribute__((__packed__)); 255 #define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0) 256 #define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48) 257 struct btrfs_root_item { 258 struct btrfs_inode_item inode; 259 __le64 generation; 260 __le64 root_dirid; 261 __le64 bytenr; 262 __le64 byte_limit; 263 __le64 bytes_used; 264 __le64 last_snapshot; 265 __le64 flags; 266 __le32 refs; 267 struct btrfs_disk_key drop_progress; 268 __u8 drop_level; 269 __u8 level; 270 __le64 generation_v2; 271 __u8 uuid[BTRFS_UUID_SIZE]; 272 __u8 parent_uuid[BTRFS_UUID_SIZE]; 273 __u8 received_uuid[BTRFS_UUID_SIZE]; 274 __le64 ctransid; 275 __le64 otransid; 276 __le64 stransid; 277 __le64 rtransid; 278 struct btrfs_timespec ctime; 279 struct btrfs_timespec otime; 280 struct btrfs_timespec stime; 281 struct btrfs_timespec rtime; 282 __le64 reserved[8]; 283 } __attribute__((__packed__)); 284 struct btrfs_root_ref { 285 __le64 dirid; 286 __le64 sequence; 287 __le16 name_len; 288 } __attribute__((__packed__)); 289 struct btrfs_disk_balance_args { 290 __le64 profiles; 291 union { 292 __le64 usage; 293 struct { 294 __le32 usage_min; 295 __le32 usage_max; 296 }; 297 }; 298 __le64 devid; 299 __le64 pstart; 300 __le64 pend; 301 __le64 vstart; 302 __le64 vend; 303 __le64 target; 304 __le64 flags; 305 union { 306 __le64 limit; 307 struct { 308 __le32 limit_min; 309 __le32 limit_max; 310 }; 311 }; 312 __le32 stripes_min; 313 __le32 stripes_max; 314 __le64 unused[6]; 315 } __attribute__((__packed__)); 316 struct btrfs_balance_item { 317 __le64 flags; 318 struct btrfs_disk_balance_args data; 319 struct btrfs_disk_balance_args meta; 320 struct btrfs_disk_balance_args sys; 321 __le64 unused[4]; 322 } __attribute__((__packed__)); 323 #define BTRFS_FILE_EXTENT_INLINE 0 324 #define BTRFS_FILE_EXTENT_REG 1 325 #define BTRFS_FILE_EXTENT_PREALLOC 2 326 #define BTRFS_FILE_EXTENT_TYPES 2 327 struct btrfs_file_extent_item { 328 __le64 generation; 329 __le64 ram_bytes; 330 __u8 compression; 331 __u8 encryption; 332 __le16 other_encoding; 333 __u8 type; 334 __le64 disk_bytenr; 335 __le64 disk_num_bytes; 336 __le64 offset; 337 __le64 num_bytes; 338 } __attribute__((__packed__)); 339 struct btrfs_csum_item { 340 __u8 csum; 341 } __attribute__((__packed__)); 342 struct btrfs_dev_stats_item { 343 __le64 values[BTRFS_DEV_STAT_VALUES_MAX]; 344 } __attribute__((__packed__)); 345 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0 346 #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID 1 347 #define BTRFS_DEV_REPLACE_ITEM_STATE_NEVER_STARTED 0 348 #define BTRFS_DEV_REPLACE_ITEM_STATE_STARTED 1 349 #define BTRFS_DEV_REPLACE_ITEM_STATE_SUSPENDED 2 350 #define BTRFS_DEV_REPLACE_ITEM_STATE_FINISHED 3 351 #define BTRFS_DEV_REPLACE_ITEM_STATE_CANCELED 4 352 struct btrfs_dev_replace_item { 353 __le64 src_devid; 354 __le64 cursor_left; 355 __le64 cursor_right; 356 __le64 cont_reading_from_srcdev_mode; 357 __le64 replace_state; 358 __le64 time_started; 359 __le64 time_stopped; 360 __le64 num_write_errors; 361 __le64 num_uncorrectable_read_errors; 362 } __attribute__((__packed__)); 363 #define BTRFS_BLOCK_GROUP_DATA (1ULL << 0) 364 #define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1) 365 #define BTRFS_BLOCK_GROUP_METADATA (1ULL << 2) 366 #define BTRFS_BLOCK_GROUP_RAID0 (1ULL << 3) 367 #define BTRFS_BLOCK_GROUP_RAID1 (1ULL << 4) 368 #define BTRFS_BLOCK_GROUP_DUP (1ULL << 5) 369 #define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6) 370 #define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7) 371 #define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8) 372 #define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV) 373 enum btrfs_raid_types { 374 BTRFS_RAID_RAID10, 375 BTRFS_RAID_RAID1, 376 BTRFS_RAID_DUP, 377 BTRFS_RAID_RAID0, 378 BTRFS_RAID_SINGLE, 379 BTRFS_RAID_RAID5, 380 BTRFS_RAID_RAID6, 381 BTRFS_NR_RAID_TYPES 382 }; 383 #define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA) 384 #define BTRFS_BLOCK_GROUP_PROFILE_MASK (BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6 | BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID10) 385 #define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6) 386 #define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48) 387 #define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49) 388 #define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | BTRFS_AVAIL_ALLOC_BIT_SINGLE) 389 struct btrfs_block_group_item { 390 __le64 used; 391 __le64 chunk_objectid; 392 __le64 flags; 393 } __attribute__((__packed__)); 394 struct btrfs_free_space_info { 395 __le32 extent_count; 396 __le32 flags; 397 } __attribute__((__packed__)); 398 #define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0) 399 #define BTRFS_QGROUP_LEVEL_SHIFT 48 400 #define BTRFS_QGROUP_STATUS_FLAG_ON (1ULL << 0) 401 #define BTRFS_QGROUP_STATUS_FLAG_RESCAN (1ULL << 1) 402 #define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2) 403 #define BTRFS_QGROUP_STATUS_VERSION 1 404 struct btrfs_qgroup_status_item { 405 __le64 version; 406 __le64 generation; 407 __le64 flags; 408 __le64 rescan; 409 } __attribute__((__packed__)); 410 struct btrfs_qgroup_info_item { 411 __le64 generation; 412 __le64 rfer; 413 __le64 rfer_cmpr; 414 __le64 excl; 415 __le64 excl_cmpr; 416 } __attribute__((__packed__)); 417 struct btrfs_qgroup_limit_item { 418 __le64 flags; 419 __le64 max_rfer; 420 __le64 max_excl; 421 __le64 rsv_rfer; 422 __le64 rsv_excl; 423 } __attribute__((__packed__)); 424 #endif 425