libc/kernel/uapi/linux/btrfs_tree.h - platform/bionic - Git at Google


            
            /*

            
             * This file is auto-generated. Modifications will be lost.

            
             *

            
             * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/

            
             * for more information.

            
             */

            
            #ifndef _BTRFS_CTREE_H_

            
            #define _BTRFS_CTREE_H_

            
            #include <linux/btrfs.h>

            
            #include <linux/types.h>

            
            #include <stddef.h>

            
            #define BTRFS_MAGIC 0x4D5F53665248425FULL

            
            #define BTRFS_MAX_LEVEL 8

            
            #define BTRFS_NAME_LEN 255

            
            #define BTRFS_LINK_MAX 65535U

            
            #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_BLOCK_GROUP_TREE_OBJECTID 11ULL

            
            #define BTRFS_RAID_STRIPE_TREE_OBJECTID 12ULL

            
            #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_VERITY_DESC_ITEM_KEY 36

            
            #define BTRFS_VERITY_MERKLE_ITEM_KEY 37

            
            #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_EXTENT_OWNER_REF_KEY 172

            
            #define BTRFS_TREE_BLOCK_REF_KEY 176

            
            #define BTRFS_EXTENT_DATA_REF_KEY 178

            
            #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_RAID_STRIPE_KEY 230

            
            #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_MAX_METADATA_BLOCKSIZE 65536

            
            #define BTRFS_CSUM_SIZE 32

            
            enum btrfs_csum_type {

            
              BTRFS_CSUM_TYPE_CRC32 = 0,

            
              BTRFS_CSUM_TYPE_XXHASH = 1,

            
              BTRFS_CSUM_TYPE_SHA256 = 2,

            
              BTRFS_CSUM_TYPE_BLAKE2 = 3,

            
            };

            
            #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

            
            #define BTRFS_FT_ENCRYPTED 0x80

            
            #define BTRFS_INODE_NODATASUM (1U << 0)

            
            #define BTRFS_INODE_NODATACOW (1U << 1)

            
            #define BTRFS_INODE_READONLY (1U << 2)

            
            #define BTRFS_INODE_NOCOMPRESS (1U << 3)

            
            #define BTRFS_INODE_PREALLOC (1U << 4)

            
            #define BTRFS_INODE_SYNC (1U << 5)

            
            #define BTRFS_INODE_IMMUTABLE (1U << 6)

            
            #define BTRFS_INODE_APPEND (1U << 7)

            
            #define BTRFS_INODE_NODUMP (1U << 8)

            
            #define BTRFS_INODE_NOATIME (1U << 9)

            
            #define BTRFS_INODE_DIRSYNC (1U << 10)

            
            #define BTRFS_INODE_COMPRESS (1U << 11)

            
            #define BTRFS_INODE_ROOT_ITEM_INIT (1U << 31)

            
            #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)

            
            #define BTRFS_INODE_RO_VERITY (1U << 0)

            
            #define BTRFS_INODE_RO_FLAG_MASK (BTRFS_INODE_RO_VERITY)

            
            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_header {

            
              __u8 csum[BTRFS_CSUM_SIZE];

            
              __u8 fsid[BTRFS_FSID_SIZE];

            
              __le64 bytenr;

            
              __le64 flags;

            
              __u8 chunk_tree_uuid[BTRFS_UUID_SIZE];

            
              __le64 generation;

            
              __le64 owner;

            
              __le32 nritems;

            
              __u8 level;

            
            } __attribute__((__packed__));

            
            #define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048

            
            #define BTRFS_NUM_BACKUP_ROOTS 4

            
            struct btrfs_root_backup {

            
              __le64 tree_root;

            
              __le64 tree_root_gen;

            
              __le64 chunk_root;

            
              __le64 chunk_root_gen;

            
              __le64 extent_root;

            
              __le64 extent_root_gen;

            
              __le64 fs_root;

            
              __le64 fs_root_gen;

            
              __le64 dev_root;

            
              __le64 dev_root_gen;

            
              __le64 csum_root;

            
              __le64 csum_root_gen;

            
              __le64 total_bytes;

            
              __le64 bytes_used;

            
              __le64 num_devices;

            
              __le64 unused_64[4];

            
              __u8 tree_root_level;

            
              __u8 chunk_root_level;

            
              __u8 extent_root_level;

            
              __u8 fs_root_level;

            
              __u8 dev_root_level;

            
              __u8 csum_root_level;

            
              __u8 unused_8[10];

            
            } __attribute__((__packed__));

            
            struct btrfs_item {

            
              struct btrfs_disk_key key;

            
              __le32 offset;

            
              __le32 size;

            
            } __attribute__((__packed__));

            
            struct btrfs_leaf {

            
              struct btrfs_header header;

            
              struct btrfs_item items[];

            
            } __attribute__((__packed__));

            
            struct btrfs_key_ptr {

            
              struct btrfs_disk_key key;

            
              __le64 blockptr;

            
              __le64 generation;

            
            } __attribute__((__packed__));

            
            struct btrfs_node {

            
              struct btrfs_header header;

            
              struct btrfs_key_ptr ptrs[];

            
            } __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__));

            
            struct btrfs_super_block {

            
              __u8 csum[BTRFS_CSUM_SIZE];

            
              __u8 fsid[BTRFS_FSID_SIZE];

            
              __le64 bytenr;

            
              __le64 flags;

            
              __le64 magic;

            
              __le64 generation;

            
              __le64 root;

            
              __le64 chunk_root;

            
              __le64 log_root;

            
              __le64 __unused_log_root_transid;

            
              __le64 total_bytes;

            
              __le64 bytes_used;

            
              __le64 root_dir_objectid;

            
              __le64 num_devices;

            
              __le32 sectorsize;

            
              __le32 nodesize;

            
              __le32 __unused_leafsize;

            
              __le32 stripesize;

            
              __le32 sys_chunk_array_size;

            
              __le64 chunk_root_generation;

            
              __le64 compat_flags;

            
              __le64 compat_ro_flags;

            
              __le64 incompat_flags;

            
              __le16 csum_type;

            
              __u8 root_level;

            
              __u8 chunk_root_level;

            
              __u8 log_root_level;

            
              struct btrfs_dev_item dev_item;

            
              char label[BTRFS_LABEL_SIZE];

            
              __le64 cache_generation;

            
              __le64 uuid_tree_generation;

            
              __u8 metadata_uuid[BTRFS_FSID_SIZE];

            
              __u64 nr_global_roots;

            
              __le64 reserved[27];

            
              __u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];

            
              struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS];

            
              __u8 padding[565];

            
            } __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__));

            
            struct btrfs_raid_stride {

            
              __le64 devid;

            
              __le64 physical;

            
            } __attribute__((__packed__));

            
            struct btrfs_stripe_extent {

            
              __DECLARE_FLEX_ARRAY(struct btrfs_raid_stride, strides);

            
            } __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)

            
            #define BTRFS_SUPER_FLAG_CHANGING_BG_TREE (1ULL << 38)

            
            #define BTRFS_SUPER_FLAG_CHANGING_DATA_CSUM (1ULL << 39)

            
            #define BTRFS_SUPER_FLAG_CHANGING_META_CSUM (1ULL << 40)

            
            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_BACKREF_REV_MAX 256

            
            #define BTRFS_BACKREF_REV_SHIFT 56

            
            #define BTRFS_BACKREF_REV_MASK (((u64) BTRFS_BACKREF_REV_MAX - 1) << BTRFS_BACKREF_REV_SHIFT)

            
            #define BTRFS_OLD_BACKREF_REV 0

            
            #define BTRFS_MIXED_BACKREF_REV 1

            
            #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_owner_ref {

            
              __le64 root_id;

            
            } __attribute__((__packed__));

            
            struct btrfs_extent_inline_ref {

            
              __u8 type;

            
              __le64 offset;

            
            } __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[];

            
            } __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__));

            
            enum {

            
              BTRFS_FILE_EXTENT_INLINE = 0,

            
              BTRFS_FILE_EXTENT_REG = 1,

            
              BTRFS_FILE_EXTENT_PREALLOC = 2,

            
              BTRFS_NR_FILE_EXTENT_TYPES = 3,

            
            };

            
            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

            
            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_RAID1C3 (1ULL << 9)

            
            #define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10)

            
            #define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE | BTRFS_SPACE_INFO_GLOBAL_RSV)

            
            #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_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4 | 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_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_RAID1C3 | BTRFS_BLOCK_GROUP_RAID1C4)

            
            #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_FLAG_SIMPLE_MODE (1ULL << 3)

            
            #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)

            
            #define BTRFS_QGROUP_STATUS_VERSION 1

            
            struct btrfs_qgroup_status_item {

            
              __le64 version;

            
              __le64 generation;

            
              __le64 flags;

            
              __le64 rescan;

            
              __le64 enable_gen;

            
            } __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__));

            
            struct btrfs_verity_descriptor_item {

            
              __le64 size;

            
              __le64 reserved[2];

            
              __u8 encryption;

            
            } __attribute__((__packed__));

            
            #endif
	/*
	* This file is auto-generated. Modifications will be lost.
	*
	* See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
	* for more information.
	*/
	#ifndef _BTRFS_CTREE_H_
	#define _BTRFS_CTREE_H_
	#include <linux/btrfs.h>
	#include <linux/types.h>
	#include <stddef.h>
	#define BTRFS_MAGIC 0x4D5F53665248425FULL
	#define BTRFS_MAX_LEVEL 8
	#define BTRFS_NAME_LEN 255
	#define BTRFS_LINK_MAX 65535U
	#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_BLOCK_GROUP_TREE_OBJECTID 11ULL
	#define BTRFS_RAID_STRIPE_TREE_OBJECTID 12ULL
	#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_VERITY_DESC_ITEM_KEY 36
	#define BTRFS_VERITY_MERKLE_ITEM_KEY 37
	#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_EXTENT_OWNER_REF_KEY 172
	#define BTRFS_TREE_BLOCK_REF_KEY 176
	#define BTRFS_EXTENT_DATA_REF_KEY 178
	#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_RAID_STRIPE_KEY 230
	#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_MAX_METADATA_BLOCKSIZE 65536
	#define BTRFS_CSUM_SIZE 32
	enum btrfs_csum_type {
	BTRFS_CSUM_TYPE_CRC32 = 0,
	BTRFS_CSUM_TYPE_XXHASH = 1,
	BTRFS_CSUM_TYPE_SHA256 = 2,
	BTRFS_CSUM_TYPE_BLAKE2 = 3,
	};
	#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
	#define BTRFS_FT_ENCRYPTED 0x80
	#define BTRFS_INODE_NODATASUM (1U << 0)
	#define BTRFS_INODE_NODATACOW (1U << 1)
	#define BTRFS_INODE_READONLY (1U << 2)
	#define BTRFS_INODE_NOCOMPRESS (1U << 3)
	#define BTRFS_INODE_PREALLOC (1U << 4)
	#define BTRFS_INODE_SYNC (1U << 5)
	#define BTRFS_INODE_IMMUTABLE (1U << 6)
	#define BTRFS_INODE_APPEND (1U << 7)
	#define BTRFS_INODE_NODUMP (1U << 8)
	#define BTRFS_INODE_NOATIME (1U << 9)
	#define BTRFS_INODE_DIRSYNC (1U << 10)
	#define BTRFS_INODE_COMPRESS (1U << 11)
	#define BTRFS_INODE_ROOT_ITEM_INIT (1U << 31)
	#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)
	#define BTRFS_INODE_RO_VERITY (1U << 0)
	#define BTRFS_INODE_RO_FLAG_MASK (BTRFS_INODE_RO_VERITY)
	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_header {
	__u8 csum[BTRFS_CSUM_SIZE];
	__u8 fsid[BTRFS_FSID_SIZE];
	__le64 bytenr;
	__le64 flags;
	__u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
	__le64 generation;
	__le64 owner;
	__le32 nritems;
	__u8 level;
	} __attribute__((__packed__));
	#define BTRFS_SYSTEM_CHUNK_ARRAY_SIZE 2048
	#define BTRFS_NUM_BACKUP_ROOTS 4
	struct btrfs_root_backup {
	__le64 tree_root;
	__le64 tree_root_gen;
	__le64 chunk_root;
	__le64 chunk_root_gen;
	__le64 extent_root;
	__le64 extent_root_gen;
	__le64 fs_root;
	__le64 fs_root_gen;
	__le64 dev_root;
	__le64 dev_root_gen;
	__le64 csum_root;
	__le64 csum_root_gen;
	__le64 total_bytes;
	__le64 bytes_used;
	__le64 num_devices;
	__le64 unused_64[4];
	__u8 tree_root_level;
	__u8 chunk_root_level;
	__u8 extent_root_level;
	__u8 fs_root_level;
	__u8 dev_root_level;
	__u8 csum_root_level;
	__u8 unused_8[10];
	} __attribute__((__packed__));
	struct btrfs_item {
	struct btrfs_disk_key key;
	__le32 offset;
	__le32 size;
	} __attribute__((__packed__));
	struct btrfs_leaf {
	struct btrfs_header header;
	struct btrfs_item items[];
	} __attribute__((__packed__));
	struct btrfs_key_ptr {
	struct btrfs_disk_key key;
	__le64 blockptr;
	__le64 generation;
	} __attribute__((__packed__));
	struct btrfs_node {
	struct btrfs_header header;
	struct btrfs_key_ptr ptrs[];
	} __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__));
	struct btrfs_super_block {
	__u8 csum[BTRFS_CSUM_SIZE];
	__u8 fsid[BTRFS_FSID_SIZE];
	__le64 bytenr;
	__le64 flags;
	__le64 magic;
	__le64 generation;
	__le64 root;
	__le64 chunk_root;
	__le64 log_root;
	__le64 __unused_log_root_transid;
	__le64 total_bytes;
	__le64 bytes_used;
	__le64 root_dir_objectid;
	__le64 num_devices;
	__le32 sectorsize;
	__le32 nodesize;
	__le32 __unused_leafsize;
	__le32 stripesize;
	__le32 sys_chunk_array_size;
	__le64 chunk_root_generation;
	__le64 compat_flags;
	__le64 compat_ro_flags;
	__le64 incompat_flags;
	__le16 csum_type;
	__u8 root_level;
	__u8 chunk_root_level;
	__u8 log_root_level;
	struct btrfs_dev_item dev_item;
	char label[BTRFS_LABEL_SIZE];
	__le64 cache_generation;
	__le64 uuid_tree_generation;
	__u8 metadata_uuid[BTRFS_FSID_SIZE];
	__u64 nr_global_roots;
	__le64 reserved[27];
	__u8 sys_chunk_array[BTRFS_SYSTEM_CHUNK_ARRAY_SIZE];
	struct btrfs_root_backup super_roots[BTRFS_NUM_BACKUP_ROOTS];
	__u8 padding[565];
	} __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__));
	struct btrfs_raid_stride {
	__le64 devid;
	__le64 physical;
	} __attribute__((__packed__));
	struct btrfs_stripe_extent {
	__DECLARE_FLEX_ARRAY(struct btrfs_raid_stride, strides);
	} __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)
	#define BTRFS_SUPER_FLAG_CHANGING_BG_TREE (1ULL << 38)
	#define BTRFS_SUPER_FLAG_CHANGING_DATA_CSUM (1ULL << 39)
	#define BTRFS_SUPER_FLAG_CHANGING_META_CSUM (1ULL << 40)
	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_BACKREF_REV_MAX 256
	#define BTRFS_BACKREF_REV_SHIFT 56
	#define BTRFS_BACKREF_REV_MASK (((u64) BTRFS_BACKREF_REV_MAX - 1) << BTRFS_BACKREF_REV_SHIFT)
	#define BTRFS_OLD_BACKREF_REV 0
	#define BTRFS_MIXED_BACKREF_REV 1
	#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_owner_ref {
	__le64 root_id;
	} __attribute__((__packed__));
	struct btrfs_extent_inline_ref {
	__u8 type;
	__le64 offset;
	} __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[];
	} __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__));
	enum {
	BTRFS_FILE_EXTENT_INLINE = 0,
	BTRFS_FILE_EXTENT_REG = 1,
	BTRFS_FILE_EXTENT_PREALLOC = 2,
	BTRFS_NR_FILE_EXTENT_TYPES = 3,
	};
	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
	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_RAID1C3 (1ULL << 9)
	#define BTRFS_BLOCK_GROUP_RAID1C4 (1ULL << 10)
	#define BTRFS_BLOCK_GROUP_RESERVED (BTRFS_AVAIL_ALLOC_BIT_SINGLE \| BTRFS_SPACE_INFO_GLOBAL_RSV)
	#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_RAID1C3 \| BTRFS_BLOCK_GROUP_RAID1C4 \| 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_BLOCK_GROUP_RAID1_MASK (BTRFS_BLOCK_GROUP_RAID1 \| BTRFS_BLOCK_GROUP_RAID1C3 \| BTRFS_BLOCK_GROUP_RAID1C4)
	#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_FLAG_SIMPLE_MODE (1ULL << 3)
	#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)
	#define BTRFS_QGROUP_STATUS_VERSION 1
	struct btrfs_qgroup_status_item {
	__le64 version;
	__le64 generation;
	__le64 flags;
	__le64 rescan;
	__le64 enable_gen;
	} __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__));
	struct btrfs_verity_descriptor_item {
	__le64 size;
	__le64 reserved[2];
	__u8 encryption;
	} __attribute__((__packed__));
	#endif