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         size_t                  buffer_size;
  10         fmode_t                 mode;
  11         unsigned                have_layout:1;
  12         unsigned                have_bio:1;
  13         unsigned                fs_sb:1;
  14         u64                     seq;
  15 };
  16
  17 struct bch_devs_mask {
  18         unsigned long d[BITS_TO_LONGS(BCH_SB_MEMBERS_MAX)];
  19 };
  20
  21 struct bch_devs_list {
  22         u8                      nr;
  23         u8                      devs[BCH_BKEY_PTRS_MAX];
  24 };
  25
  26 struct bch_member_cpu {
  27         u64                     nbuckets;       /* device size */
  28         u16                     first_bucket;   /* index of first bucket used */
  29         u16                     bucket_size;    /* sectors */
  30         u16                     group;
  31         u8                      state;
  32         u8                      discard;
  33         u8                      data_allowed;
  34         u8                      durability;
  35         u8                      valid;
  36 };
  37
  38 struct bch_disk_group_cpu {
  39         bool                            deleted;
  40         u16                             parent;
  41         struct bch_devs_mask            devs;
  42 };
  43
  44 struct bch_disk_groups_cpu {
  45         struct rcu_head                 rcu;
  46         unsigned                        nr;
  47         struct bch_disk_group_cpu       entries[];
  48 };
  49
  50 #endif /* _BCACHEFS_SUPER_TYPES_H */