git.sesse.net Git - bcachefs-tools-debian/blob - libbcachefs/super_types.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _BCACHEFS_SUPER_TYPES_H
   3 #define _BCACHEFS_SUPER_TYPES_H
   4
   5 struct bch_sb_handle {
   6         struct bch_sb           *sb;
   7         struct block_device     *bdev;
   8         struct bio              *bio;
   9         void                    *holder;
  10         size_t                  buffer_size;
  11         blk_mode_t              mode;
  12         unsigned                have_layout:1;
  13         unsigned                have_bio:1;
  14         unsigned                fs_sb:1;
  15         u64                     seq;
  16 };
  17
  18 struct bch_devs_mask {
  19         unsigned long d[BITS_TO_LONGS(BCH_SB_MEMBERS_MAX)];
  20 };
  21
  22 struct bch_devs_list {
  23         u8                      nr;
  24         u8                      devs[BCH_BKEY_PTRS_MAX];
  25 };
  26
  27 struct bch_member_cpu {
  28         u64                     nbuckets;       /* device size */
  29         u16                     first_bucket;   /* index of first bucket used */
  30         u16                     bucket_size;    /* sectors */
  31         u16                     group;
  32         u8                      state;
  33         u8                      discard;
  34         u8                      data_allowed;
  35         u8                      durability;
  36         u8                      freespace_initialized;
  37         u8                      valid;
  38 };
  39
  40 struct bch_disk_group_cpu {
  41         bool                            deleted;
  42         u16                             parent;
  43         struct bch_devs_mask            devs;
  44 };
  45
  46 struct bch_disk_groups_cpu {
  47         struct rcu_head                 rcu;
  48         unsigned                        nr;
  49         struct bch_disk_group_cpu       entries[] __counted_by(nr);
  50 };
  51
  52 #endif /* _BCACHEFS_SUPER_TYPES_H */