src/basic/btrfs-ctree.h

   1 #pragma once
   2
   3 #include "macro.h"
   4 #include "sparse-endian.h"
   5
   6 /* Stolen from btrfs' ctree.h */
   7
   8 struct btrfs_timespec {
   9         le64_t sec;
  10         le32_t nsec;
  11 } _packed_;
  12
  13 struct btrfs_disk_key {
  14         le64_t objectid;
  15         uint8_t type;
  16         le64_t offset;
  17 } _packed_;
  18
  19 struct btrfs_inode_item {
  20         le64_t generation;
  21         le64_t transid;
  22         le64_t size;
  23         le64_t nbytes;
  24         le64_t block_group;
  25         le32_t nlink;
  26         le32_t uid;
  27         le32_t gid;
  28         le32_t mode;
  29         le64_t rdev;
  30         le64_t flags;
  31         le64_t sequence;
  32         le64_t reserved[4];
  33         struct btrfs_timespec atime;
  34         struct btrfs_timespec ctime;
  35         struct btrfs_timespec mtime;
  36         struct btrfs_timespec otime;
  37 } _packed_;
  38
  39 struct btrfs_root_item {
  40         struct btrfs_inode_item inode;
  41         le64_t generation;
  42         le64_t root_dirid;
  43         le64_t bytenr;
  44         le64_t byte_limit;
  45         le64_t bytes_used;
  46         le64_t last_snapshot;
  47         le64_t flags;
  48         le32_t refs;
  49         struct btrfs_disk_key drop_progress;
  50         uint8_t drop_level;
  51         uint8_t level;
  52         le64_t generation_v2;
  53         uint8_t uuid[BTRFS_UUID_SIZE];
  54         uint8_t parent_uuid[BTRFS_UUID_SIZE];
  55         uint8_t received_uuid[BTRFS_UUID_SIZE];
  56         le64_t ctransid;
  57         le64_t otransid;
  58         le64_t stransid;
  59         le64_t rtransid;
  60         struct btrfs_timespec ctime;
  61         struct btrfs_timespec otime;
  62         struct btrfs_timespec stime;
  63         struct btrfs_timespec rtime;
  64         le64_t reserved[8];
  65 } _packed_;
  66
  67 #define BTRFS_ROOT_SUBVOL_RDONLY (1ULL << 0)
  68
  69 struct btrfs_qgroup_info_item {
  70         le64_t generation;
  71         le64_t rfer;
  72         le64_t rfer_cmpr;
  73         le64_t excl;
  74         le64_t excl_cmpr;
  75 } _packed_;
  76
  77 #define BTRFS_QGROUP_LIMIT_MAX_RFER     (1ULL << 0)
  78 #define BTRFS_QGROUP_LIMIT_MAX_EXCL     (1ULL << 1)
  79 #define BTRFS_QGROUP_LIMIT_RSV_RFER     (1ULL << 2)
  80 #define BTRFS_QGROUP_LIMIT_RSV_EXCL     (1ULL << 3)
  81 #define BTRFS_QGROUP_LIMIT_RFER_CMPR    (1ULL << 4)
  82 #define BTRFS_QGROUP_LIMIT_EXCL_CMPR    (1ULL << 5)
  83
  84 struct btrfs_qgroup_limit_item {
  85         le64_t flags;
  86         le64_t max_rfer;
  87         le64_t max_excl;
  88         le64_t rsv_rfer;
  89         le64_t rsv_excl;
  90 } _packed_;
  91
  92 struct btrfs_root_ref {
  93         le64_t dirid;
  94         le64_t sequence;
  95         le16_t name_len;
  96 } _packed_;