text: /****************************************************************************
   ****************************************************************************
   ***
   ***   This header was automatically generated from a Linux kernel header
   ***   of the same name, to make information necessary for userspace to
   ***   call into the kernel available to libc.  It contains only constants,
   ***   structures, and macros generated from the original header, and thus,
   ***   contains no copyrightable information.
   ***
   ***   To edit the content of this header, modify the corresponding
   ***   source file (e.g. under external/kernel-headers/original/) then
   ***   run bionic/libc/kernel/tools/update_all.py
   ***
   ***   Any manual change here will be lost the next time this script will
   ***   be run. You've been warned!
   ***
   ****************************************************************************
   ****************************************************************************/
  #ifndef _BTRFS_CTREE_H_
  #define _BTRFS_CTREE_H_
  #include <linux/btrfs.h>
  #include <linux/types.h>
  #define BTRFS_ROOT_TREE_OBJECTID 1ULL
  #define BTRFS_EXTENT_TREE_OBJECTID 2ULL
  #define BTRFS_CHUNK_TREE_OBJECTID 3ULL
  #define BTRFS_DEV_TREE_OBJECTID 4ULL
  #define BTRFS_FS_TREE_OBJECTID 5ULL
  #define BTRFS_ROOT_TREE_DIR_OBJECTID 6ULL
  #define BTRFS_CSUM_TREE_OBJECTID 7ULL
  #define BTRFS_QUOTA_TREE_OBJECTID 8ULL
  #define BTRFS_UUID_TREE_OBJECTID 9ULL
  #define BTRFS_FREE_SPACE_TREE_OBJECTID 10ULL
  #define BTRFS_DEV_STATS_OBJECTID 0ULL
  #define BTRFS_BALANCE_OBJECTID - 4ULL
  #define BTRFS_ORPHAN_OBJECTID - 5ULL
  #define BTRFS_TREE_LOG_OBJECTID - 6ULL
  #define BTRFS_TREE_LOG_FIXUP_OBJECTID - 7ULL
  #define BTRFS_TREE_RELOC_OBJECTID - 8ULL
  #define BTRFS_DATA_RELOC_TREE_OBJECTID - 9ULL
  #define BTRFS_EXTENT_CSUM_OBJECTID - 10ULL
  #define BTRFS_FREE_SPACE_OBJECTID - 11ULL
  #define BTRFS_FREE_INO_OBJECTID - 12ULL
  #define BTRFS_MULTIPLE_OBJECTIDS - 255ULL
  #define BTRFS_FIRST_FREE_OBJECTID 256ULL
  #define BTRFS_LAST_FREE_OBJECTID - 256ULL
  #define BTRFS_FIRST_CHUNK_TREE_OBJECTID 256ULL
  #define BTRFS_DEV_ITEMS_OBJECTID 1ULL
  #define BTRFS_BTREE_INODE_OBJECTID 1
  #define BTRFS_EMPTY_SUBVOL_DIR_OBJECTID 2
  #define BTRFS_DEV_REPLACE_DEVID 0ULL
  #define BTRFS_INODE_ITEM_KEY 1
  #define BTRFS_INODE_REF_KEY 12
  #define BTRFS_INODE_EXTREF_KEY 13
  #define BTRFS_XATTR_ITEM_KEY 24
  #define BTRFS_ORPHAN_ITEM_KEY 48
  #define BTRFS_DIR_LOG_ITEM_KEY 60
  #define BTRFS_DIR_LOG_INDEX_KEY 72
  #define BTRFS_DIR_ITEM_KEY 84
  #define BTRFS_DIR_INDEX_KEY 96
  #define BTRFS_EXTENT_DATA_KEY 108
  #define BTRFS_EXTENT_CSUM_KEY 128
  #define BTRFS_ROOT_ITEM_KEY 132
  #define BTRFS_ROOT_BACKREF_KEY 144
  #define BTRFS_ROOT_REF_KEY 156
  #define BTRFS_EXTENT_ITEM_KEY 168
  #define BTRFS_METADATA_ITEM_KEY 169
  #define BTRFS_TREE_BLOCK_REF_KEY 176
  #define BTRFS_EXTENT_DATA_REF_KEY 178
  #define BTRFS_EXTENT_REF_V0_KEY 180
  #define BTRFS_SHARED_BLOCK_REF_KEY 182
  #define BTRFS_SHARED_DATA_REF_KEY 184
  #define BTRFS_BLOCK_GROUP_ITEM_KEY 192
  #define BTRFS_FREE_SPACE_INFO_KEY 198
  #define BTRFS_FREE_SPACE_EXTENT_KEY 199
  #define BTRFS_FREE_SPACE_BITMAP_KEY 200
  #define BTRFS_DEV_EXTENT_KEY 204
  #define BTRFS_DEV_ITEM_KEY 216
  #define BTRFS_CHUNK_ITEM_KEY 228
  #define BTRFS_QGROUP_STATUS_KEY 240
  #define BTRFS_QGROUP_INFO_KEY 242
  #define BTRFS_QGROUP_LIMIT_KEY 244
  #define BTRFS_QGROUP_RELATION_KEY 246
  #define BTRFS_BALANCE_ITEM_KEY 248
  #define BTRFS_TEMPORARY_ITEM_KEY 248
  #define BTRFS_DEV_STATS_KEY 249
  #define BTRFS_PERSISTENT_ITEM_KEY 249
  #define BTRFS_DEV_REPLACE_KEY 250
  #if BTRFS_UUID_SIZE != 16
  #error "UUID items require BTRFS_UUID_SIZE == 16!"
  #endif
  #define BTRFS_UUID_KEY_SUBVOL 251
  #define BTRFS_UUID_KEY_RECEIVED_SUBVOL 252
  #define BTRFS_STRING_ITEM_KEY 253
  #define BTRFS_CSUM_SIZE 32
  #define BTRFS_CSUM_TYPE_CRC32 0
  #define BTRFS_FT_UNKNOWN 0
  #define BTRFS_FT_REG_FILE 1
  #define BTRFS_FT_DIR 2
  #define BTRFS_FT_CHRDEV 3
  #define BTRFS_FT_BLKDEV 4
  #define BTRFS_FT_FIFO 5
  #define BTRFS_FT_SOCK 6
  #define BTRFS_FT_SYMLINK 7
  #define BTRFS_FT_XATTR 8
  #define BTRFS_FT_MAX 9
  struct btrfs_disk_key {
    __le64 objectid;
    __u8 type;
    __le64 offset;
  } __attribute__((__packed__));
  struct btrfs_key {
    __u64 objectid;
    __u8 type;
    __u64 offset;
  } __attribute__((__packed__));
  struct btrfs_dev_item {
    __le64 devid;
    __le64 total_bytes;
    __le64 bytes_used;
    __le32 io_align;
    __le32 io_width;
    __le32 sector_size;
    __le64 type;
    __le64 generation;
    __le64 start_offset;
    __le32 dev_group;
    __u8 seek_speed;
    __u8 bandwidth;
    __u8 uuid[BTRFS_UUID_SIZE];
    __u8 fsid[BTRFS_UUID_SIZE];
  } __attribute__((__packed__));
  struct btrfs_stripe {
    __le64 devid;
    __le64 offset;
    __u8 dev_uuid[BTRFS_UUID_SIZE];
  } __attribute__((__packed__));
  struct btrfs_chunk {
    __le64 length;
    __le64 owner;
    __le64 stripe_len;
    __le64 type;
    __le32 io_align;
    __le32 io_width;
    __le32 sector_size;
    __le16 num_stripes;
    __le16 sub_stripes;
    struct btrfs_stripe stripe;
  } __attribute__((__packed__));
  #define BTRFS_FREE_SPACE_EXTENT 1
  #define BTRFS_FREE_SPACE_BITMAP 2
  struct btrfs_free_space_entry {
    __le64 offset;
    __le64 bytes;
    __u8 type;
  } __attribute__((__packed__));
  struct btrfs_free_space_header {
    struct btrfs_disk_key location;
    __le64 generation;
    __le64 num_entries;
    __le64 num_bitmaps;
  } __attribute__((__packed__));
  #define BTRFS_HEADER_FLAG_WRITTEN (1ULL << 0)
  #define BTRFS_HEADER_FLAG_RELOC (1ULL << 1)
  #define BTRFS_SUPER_FLAG_ERROR (1ULL << 2)
  #define BTRFS_SUPER_FLAG_SEEDING (1ULL << 32)
  #define BTRFS_SUPER_FLAG_METADUMP (1ULL << 33)
  #define BTRFS_SUPER_FLAG_METADUMP_V2 (1ULL << 34)
  #define BTRFS_SUPER_FLAG_CHANGING_FSID (1ULL << 35)
  #define BTRFS_SUPER_FLAG_CHANGING_FSID_V2 (1ULL << 36)
  struct btrfs_extent_item {
    __le64 refs;
    __le64 generation;
    __le64 flags;
  } __attribute__((__packed__));
  struct btrfs_extent_item_v0 {
    __le32 refs;
  } __attribute__((__packed__));
  #define BTRFS_EXTENT_FLAG_DATA (1ULL << 0)
  #define BTRFS_EXTENT_FLAG_TREE_BLOCK (1ULL << 1)
  #define BTRFS_BLOCK_FLAG_FULL_BACKREF (1ULL << 8)
  #define BTRFS_EXTENT_FLAG_SUPER (1ULL << 48)
  struct btrfs_tree_block_info {
    struct btrfs_disk_key key;
    __u8 level;
  } __attribute__((__packed__));
  struct btrfs_extent_data_ref {
    __le64 root;
    __le64 objectid;
    __le64 offset;
    __le32 count;
  } __attribute__((__packed__));
  struct btrfs_shared_data_ref {
    __le32 count;
  } __attribute__((__packed__));
  struct btrfs_extent_inline_ref {
    __u8 type;
    __le64 offset;
  } __attribute__((__packed__));
  struct btrfs_extent_ref_v0 {
    __le64 root;
    __le64 generation;
    __le64 objectid;
    __le32 count;
  } __attribute__((__packed__));
  struct btrfs_dev_extent {
    __le64 chunk_tree;
    __le64 chunk_objectid;
    __le64 chunk_offset;
    __le64 length;
    __u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
  } __attribute__((__packed__));
  struct btrfs_inode_ref {
    __le64 index;
    __le16 name_len;
  } __attribute__((__packed__));
  struct btrfs_inode_extref {
    __le64 parent_objectid;
    __le64 index;
    __le16 name_len;
    __u8 name[0];
  } __attribute__((__packed__));
  struct btrfs_timespec {
    __le64 sec;
    __le32 nsec;
  } __attribute__((__packed__));
  struct btrfs_inode_item {
    __le64 generation;
    __le64 transid;
    __le64 size;
    __le64 nbytes;
    __le64 block_group;
    __le32 nlink;
    __le32 uid;
    __le32 gid;
    __le32 mode;
    __le64 rdev;
    __le64 flags;
    __le64 sequence;
    __le64 reserved[4];
    struct btrfs_timespec atime;
    struct btrfs_timespec ctime;
    struct btrfs_timespec mtime;
    struct btrfs_timespec otime;
  } __attribute__((__packed__));
  struct btrfs_dir_log_item {
    __le64 end;
  } __attribute__((__packed__));
  struct btrfs_dir_item {
    struct btrfs_disk_key location;
    __le64 transid;
    __le16 data_len;
    __le16 name_len;
    __u8 type;
  } __attribute__((__packed__));
  #define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0)
  #define BTRFS_ROOT_SUBVOL_DEAD (1ULL << 48)
  struct btrfs_root_item {
    struct btrfs_inode_item inode;
    __le64 generation;
    __le64 root_dirid;
    __le64 bytenr;
    __le64 byte_limit;
    __le64 bytes_used;
    __le64 last_snapshot;
    __le64 flags;
    __le32 refs;
    struct btrfs_disk_key drop_progress;
    __u8 drop_level;
    __u8 level;
    __le64 generation_v2;
    __u8 uuid[BTRFS_UUID_SIZE];
    __u8 parent_uuid[BTRFS_UUID_SIZE];
    __u8 received_uuid[BTRFS_UUID_SIZE];
    __le64 ctransid;
    __le64 otransid;
    __le64 stransid;
    __le64 rtransid;
    struct btrfs_timespec ctime;
    struct btrfs_timespec otime;
    struct btrfs_timespec stime;
    struct btrfs_timespec rtime;
    __le64 reserved[8];
  } __attribute__((__packed__));
  struct btrfs_root_ref {
    __le64 dirid;
    __le64 sequence;
    __le16 name_len;
  } __attribute__((__packed__));
  struct btrfs_disk_balance_args {
    __le64 profiles;
    union {
      __le64 usage;
      struct {
        __le32 usage_min;
        __le32 usage_max;
      };
    };
    __le64 devid;
    __le64 pstart;
    __le64 pend;
    __le64 vstart;
    __le64 vend;
    __le64 target;
    __le64 flags;
    union {
      __le64 limit;
      struct {
        __le32 limit_min;
        __le32 limit_max;
      };
    };
    __le32 stripes_min;
    __le32 stripes_max;
    __le64 unused[6];
  } __attribute__((__packed__));
  struct btrfs_balance_item {
    __le64 flags;
    struct btrfs_disk_balance_args data;
    struct btrfs_disk_balance_args meta;
    struct btrfs_disk_balance_args sys;
    __le64 unused[4];
  } __attribute__((__packed__));
  #define BTRFS_FILE_EXTENT_INLINE 0
  #define BTRFS_FILE_EXTENT_REG 1
  #define BTRFS_FILE_EXTENT_PREALLOC 2
  #define BTRFS_FILE_EXTENT_TYPES 2
  struct btrfs_file_extent_item {
    __le64 generation;
    __le64 ram_bytes;
    __u8 compression;
    __u8 encryption;
    __le16 other_encoding;
    __u8 type;
    __le64 disk_bytenr;
    __le64 disk_num_bytes;
    __le64 offset;
    __le64 num_bytes;
  } __attribute__((__packed__));
  struct btrfs_csum_item {
    __u8 csum;
  } __attribute__((__packed__));
  struct btrfs_dev_stats_item {
    __le64 values[BTRFS_DEV_STAT_VALUES_MAX];
  } __attribute__((__packed__));
  #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_ALWAYS 0
  #define BTRFS_DEV_REPLACE_ITEM_CONT_READING_FROM_SRCDEV_MODE_AVOID 1
  #define BTRFS_DEV_REPLACE_ITEM_STATE_NEVER_STARTED 0
  #define BTRFS_DEV_REPLACE_ITEM_STATE_STARTED 1
  #define BTRFS_DEV_REPLACE_ITEM_STATE_SUSPENDED 2
  #define BTRFS_DEV_REPLACE_ITEM_STATE_FINISHED 3
  #define BTRFS_DEV_REPLACE_ITEM_STATE_CANCELED 4
  struct btrfs_dev_replace_item {
    __le64 src_devid;
    __le64 cursor_left;
    __le64 cursor_right;
    __le64 cont_reading_from_srcdev_mode;
    __le64 replace_state;
    __le64 time_started;
    __le64 time_stopped;
    __le64 num_write_errors;
    __le64 num_uncorrectable_read_errors;
  } __attribute__((__packed__));
  #define BTRFS_BLOCK_GROUP_DATA (1ULL << 0)
  #define BTRFS_BLOCK_GROUP_SYSTEM (1ULL << 1)
  #define BTRFS_BLOCK_GROUP_METADATA (1ULL << 2)
  #define BTRFS_BLOCK_GROUP_RAID0 (1ULL << 3)
  #define BTRFS_BLOCK_GROUP_RAID1 (1ULL << 4)
  #define BTRFS_BLOCK_GROUP_DUP (1ULL << 5)
  #define BTRFS_BLOCK_GROUP_RAID10 (1ULL << 6)
  #define BTRFS_BLOCK_GROUP_RAID5 (1ULL << 7)
  #define BTRFS_BLOCK_GROUP_RAID6 (1ULL << 8)
  #define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV)
  enum btrfs_raid_types {
    BTRFS_RAID_RAID10,
    BTRFS_RAID_RAID1,
    BTRFS_RAID_DUP,
    BTRFS_RAID_RAID0,
    BTRFS_RAID_SINGLE,
    BTRFS_RAID_RAID5,
    BTRFS_RAID_RAID6,
    BTRFS_NR_RAID_TYPES
  };
  #define BTRFS_BLOCK_GROUP_TYPE_MASK (BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA)
  #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)
  #define BTRFS_BLOCK_GROUP_RAID56_MASK (BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)
  #define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48)
  #define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49)
  #define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | BTRFS_AVAIL_ALLOC_BIT_SINGLE)
  struct btrfs_block_group_item {
    __le64 used;
    __le64 chunk_objectid;
    __le64 flags;
  } __attribute__((__packed__));
  struct btrfs_free_space_info {
    __le32 extent_count;
    __le32 flags;
  } __attribute__((__packed__));
  #define BTRFS_FREE_SPACE_USING_BITMAPS (1ULL << 0)
  #define BTRFS_QGROUP_LEVEL_SHIFT 48
  #define BTRFS_QGROUP_STATUS_FLAG_ON (1ULL << 0)
  #define BTRFS_QGROUP_STATUS_FLAG_RESCAN (1ULL << 1)
  #define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT (1ULL << 2)
  #define BTRFS_QGROUP_STATUS_VERSION 1
  struct btrfs_qgroup_status_item {
    __le64 version;
    __le64 generation;
    __le64 flags;
    __le64 rescan;
  } __attribute__((__packed__));
  struct btrfs_qgroup_info_item {
    __le64 generation;
    __le64 rfer;
    __le64 rfer_cmpr;
    __le64 excl;
    __le64 excl_cmpr;
  } __attribute__((__packed__));
  struct btrfs_qgroup_limit_item {
    __le64 flags;
    __le64 max_rfer;
    __le64 max_excl;
    __le64 rsv_rfer;
    __le64 rsv_excl;
  } __attribute__((__packed__));
  #endif
  