website-struct

Struct: mdp_superblock_s

Status

Regular

• In 4.4: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 4.8: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 4.10: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 4.13: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 4.15: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 4.18: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.0: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.3: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.4: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.8: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.11: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.13: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.15: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 5.19: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 6.2: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 6.5: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In 6.8: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

Arch

• In arm64: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In armhf: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In ppc64el: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In riscv64: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

Flavor

• In aws: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In azure: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In gcp: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

• In lowlatency: ✅

  struct mdp_superblock_s {
      __u32 md_magic;
      __u32 major_version;
      __u32 minor_version;
      __u32 patch_version;
      __u32 gvalid_words;
      __u32 set_uuid0;
      __u32 ctime;
      __u32 level;
      __u32 size;
      __u32 nr_disks;
      __u32 raid_disks;
      __u32 md_minor;
      __u32 not_persistent;
      __u32 set_uuid1;
      __u32 set_uuid2;
      __u32 set_uuid3;
      __u32 gstate_creserved[16];
      __u32 utime;
      __u32 state;
      __u32 active_disks;
      __u32 working_disks;
      __u32 failed_disks;
      __u32 spare_disks;
      __u32 sb_csum;
      __u32 events_lo;
      __u32 events_hi;
      __u32 cp_events_lo;
      __u32 cp_events_hi;
      __u32 recovery_cp;
      __u64 reshape_position;
      __u32 new_level;
      __u32 delta_disks;
      __u32 new_layout;
      __u32 new_chunk;
      __u32 gstate_sreserved[14];
      __u32 layout;
      __u32 chunk_size;
      __u32 root_pv;
      __u32 root_block;
      __u32 pstate_reserved[60];
      mdp_disk_t disks[27];
      __u32 reserved[0];
      mdp_disk_t this_disk;
  };
  

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 ✅
• No changes between 5.8 and 5.11 ✅
• 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 ✅
• No changes between 6.2 and 6.5 ✅
• 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 ✅