website-struct

Struct: journal_superblock_s

Status

Regular

• In 4.4: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 4.8: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 4.10: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 4.13: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 4.15: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 4.18: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.0: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.3: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.4: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.8: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.11: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __be32 s_num_fc_blks;
      __u32 s_padding[41];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.13: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __be32 s_num_fc_blks;
      __u32 s_padding[41];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.15: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __be32 s_num_fc_blks;
      __u32 s_padding[41];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 5.19: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __be32 s_num_fc_blks;
      __u32 s_padding[41];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 6.2: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __be32 s_num_fc_blks;
      __u32 s_padding[41];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 6.5: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __be32 s_num_fc_blks;
      __be32 s_head;
      __u32 s_padding[40];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In 6.8: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __be32 s_num_fc_blks;
      __be32 s_head;
      __u32 s_padding[40];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

Arch

• In arm64: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In armhf: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In ppc64el: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In riscv64: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

Flavor

• In aws: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In azure: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In gcp: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

• In lowlatency: ✅

  struct journal_superblock_s {
      journal_header_t s_header;
      __be32 s_blocksize;
      __be32 s_maxlen;
      __be32 s_first;
      __be32 s_sequence;
      __be32 s_start;
      __be32 s_errno;
      __be32 s_feature_compat;
      __be32 s_feature_incompat;
      __be32 s_feature_ro_compat;
      __u8 s_uuid[16];
      __be32 s_nr_users;
      __be32 s_dynsuper;
      __be32 s_max_transaction;
      __be32 s_max_trans_data;
      __u8 s_checksum_type;
      __u8 s_padding2[3];
      __u32 s_padding[42];
      __be32 s_checksum;
      __u8 s_users[768];
  };
  

Differences

Regular

• No changes between 4.4 and 4.8 ✅
• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• No changes between 5.4 and 5.8 ✅
• Changed between 5.8 and 5.11 ⚠️

  • Field added. __be32 s_num_fc_blks
  • Field type changed. __u32 s_padding[42] ➡️ __u32 s_padding[41]
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• Changed between 6.2 and 6.5 ⚠️

  • Field added. __be32 s_head
  • Field type changed. __u32 s_padding[41] ➡️ __u32 s_padding[40]
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅