DepSurf

Struct: `ext4_sb_info`

Status

Regular

In 4.4: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    spinlock_t s_next_gen_lock;
    u32 s_next_generation;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_resize_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[2];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_mb_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
};

In 4.8: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    spinlock_t s_next_gen_lock;
    u32 s_next_generation;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_resize_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_mb_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_journal_flag_rwsem;
    u8 key_prefix[5];
    u8 key_prefix_size;
};

In 4.10: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    spinlock_t s_next_gen_lock;
    u32 s_next_generation;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_resize_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_mb_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_journal_flag_rwsem;
    u8 key_prefix[5];
    u8 key_prefix_size;
};

In 4.13: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    spinlock_t s_next_gen_lock;
    u32 s_next_generation;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_journal_flag_rwsem;
};

In 4.15: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_journal_flag_rwsem;
    struct dax_device *s_daxdev;
};

In 4.18: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_journal_flag_rwsem;
    struct dax_device *s_daxdev;
};

In 5.0: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_journal_flag_rwsem;
    struct dax_device *s_daxdev;
};

In 5.3: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct rb_root system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups *s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_journal_flag_rwsem;
    struct dax_device *s_daxdev;
};

In 5.4: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

In 5.8: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_mb_max_inode_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct fscrypt_dummy_context s_dummy_enc_ctx;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
};

In 5.11: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    long unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct percpu_counter s_sra_exceeded_retry_limit;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *s_journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *s_system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_mb_max_inode_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    unsigned int s_mb_prefetch;
    unsigned int s_mb_prefetch_limit;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    atomic_t s_warning_count;
    atomic_t s_msg_count;
    struct fscrypt_dummy_policy s_dummy_enc_policy;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
    spinlock_t s_error_lock;
    int s_add_error_count;
    int s_first_error_code;
    __u32 s_first_error_line;
    __u32 s_first_error_ino;
    __u64 s_first_error_block;
    const char *s_first_error_func;
    time64_t s_first_error_time;
    int s_last_error_code;
    __u32 s_last_error_line;
    __u32 s_last_error_ino;
    __u64 s_last_error_block;
    const char *s_last_error_func;
    time64_t s_last_error_time;
    struct work_struct s_error_work;
    atomic_t s_fc_subtid;
    atomic_t s_fc_ineligible_updates;
    struct list_head s_fc_q[2];
    struct list_head s_fc_dentry_q[2];
    unsigned int s_fc_bytes;
    spinlock_t s_fc_lock;
    struct buffer_head *s_fc_bh;
    struct ext4_fc_stats s_fc_stats;
    u64 s_fc_avg_commit_time;
    struct ext4_fc_replay_state s_fc_replay_state;
};

In 5.13: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    long unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct percpu_counter s_sra_exceeded_retry_limit;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct buffer_head *s_mmp_bh;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *s_journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *s_system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    struct rb_root s_mb_avg_fragment_size_root;
    rwlock_t s_mb_rb_lock;
    struct list_head *s_mb_largest_free_orders;
    rwlock_t *s_mb_largest_free_orders_locks;
    long unsigned int s_stripe;
    unsigned int s_mb_max_linear_groups;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_mb_max_inode_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    unsigned int s_mb_prefetch;
    unsigned int s_mb_prefetch_limit;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_groups_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    atomic_t s_bal_cr0_bad_suggestions;
    atomic_t s_bal_cr1_bad_suggestions;
    atomic64_t s_bal_cX_groups_considered[4];
    atomic64_t s_bal_cX_hits[4];
    atomic64_t s_bal_cX_failed[4];
    atomic_t s_mb_buddies_generated;
    atomic64_t s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    atomic_t s_warning_count;
    atomic_t s_msg_count;
    struct fscrypt_dummy_policy s_dummy_enc_policy;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
    spinlock_t s_error_lock;
    int s_add_error_count;
    int s_first_error_code;
    __u32 s_first_error_line;
    __u32 s_first_error_ino;
    __u64 s_first_error_block;
    const char *s_first_error_func;
    time64_t s_first_error_time;
    int s_last_error_code;
    __u32 s_last_error_line;
    __u32 s_last_error_ino;
    __u64 s_last_error_block;
    const char *s_last_error_func;
    time64_t s_last_error_time;
    struct work_struct s_error_work;
    atomic_t s_fc_subtid;
    atomic_t s_fc_ineligible_updates;
    struct list_head s_fc_q[2];
    struct list_head s_fc_dentry_q[2];
    unsigned int s_fc_bytes;
    spinlock_t s_fc_lock;
    struct buffer_head *s_fc_bh;
    struct ext4_fc_stats s_fc_stats;
    u64 s_fc_avg_commit_time;
    struct ext4_fc_replay_state s_fc_replay_state;
};

In 5.15: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    long unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct percpu_counter s_sra_exceeded_retry_limit;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct buffer_head *s_mmp_bh;
    struct journal_s *s_journal;
    long unsigned int s_ext4_flags;
    struct mutex s_orphan_lock;
    struct list_head s_orphan;
    struct ext4_orphan_info s_orphan_info;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *s_journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *s_system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    struct list_head s_discard_list;
    struct work_struct s_discard_work;
    atomic_t s_retry_alloc_pending;
    struct rb_root s_mb_avg_fragment_size_root;
    rwlock_t s_mb_rb_lock;
    struct list_head *s_mb_largest_free_orders;
    rwlock_t *s_mb_largest_free_orders_locks;
    long unsigned int s_stripe;
    unsigned int s_mb_max_linear_groups;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_mb_max_inode_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    unsigned int s_mb_prefetch;
    unsigned int s_mb_prefetch_limit;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_groups_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    atomic_t s_bal_cr0_bad_suggestions;
    atomic_t s_bal_cr1_bad_suggestions;
    atomic64_t s_bal_cX_groups_considered[4];
    atomic64_t s_bal_cX_hits[4];
    atomic64_t s_bal_cX_failed[4];
    atomic_t s_mb_buddies_generated;
    atomic64_t s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ext4_journal_trigger s_journal_triggers[1];
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    atomic_t s_warning_count;
    atomic_t s_msg_count;
    struct fscrypt_dummy_policy s_dummy_enc_policy;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
    spinlock_t s_error_lock;
    int s_add_error_count;
    int s_first_error_code;
    __u32 s_first_error_line;
    __u32 s_first_error_ino;
    __u64 s_first_error_block;
    const char *s_first_error_func;
    time64_t s_first_error_time;
    int s_last_error_code;
    __u32 s_last_error_line;
    __u32 s_last_error_ino;
    __u64 s_last_error_block;
    const char *s_last_error_func;
    time64_t s_last_error_time;
    struct work_struct s_error_work;
    atomic_t s_fc_subtid;
    struct list_head s_fc_q[2];
    struct list_head s_fc_dentry_q[2];
    unsigned int s_fc_bytes;
    spinlock_t s_fc_lock;
    struct buffer_head *s_fc_bh;
    struct ext4_fc_stats s_fc_stats;
    tid_t s_fc_ineligible_tid;
    struct ext4_fc_replay_state s_fc_replay_state;
};

In 5.19: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    long unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct percpu_counter s_sra_exceeded_retry_limit;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct buffer_head *s_mmp_bh;
    struct journal_s *s_journal;
    long unsigned int s_ext4_flags;
    struct mutex s_orphan_lock;
    struct list_head s_orphan;
    struct ext4_orphan_info s_orphan_info;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *s_journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *s_system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    struct list_head s_discard_list;
    struct work_struct s_discard_work;
    atomic_t s_retry_alloc_pending;
    struct rb_root s_mb_avg_fragment_size_root;
    rwlock_t s_mb_rb_lock;
    struct list_head *s_mb_largest_free_orders;
    rwlock_t *s_mb_largest_free_orders_locks;
    long unsigned int s_stripe;
    unsigned int s_mb_max_linear_groups;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_mb_max_inode_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    unsigned int s_mb_prefetch;
    unsigned int s_mb_prefetch_limit;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_groups_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    atomic_t s_bal_cr0_bad_suggestions;
    atomic_t s_bal_cr1_bad_suggestions;
    atomic64_t s_bal_cX_groups_considered[4];
    atomic64_t s_bal_cX_hits[4];
    atomic64_t s_bal_cX_failed[4];
    atomic_t s_mb_buddies_generated;
    atomic64_t s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    long unsigned int s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ext4_journal_trigger s_journal_triggers[1];
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    atomic_t s_warning_count;
    atomic_t s_msg_count;
    struct fscrypt_dummy_policy s_dummy_enc_policy;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    u64 s_dax_part_off;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
    spinlock_t s_error_lock;
    int s_add_error_count;
    int s_first_error_code;
    __u32 s_first_error_line;
    __u32 s_first_error_ino;
    __u64 s_first_error_block;
    const char *s_first_error_func;
    time64_t s_first_error_time;
    int s_last_error_code;
    __u32 s_last_error_line;
    __u32 s_last_error_ino;
    __u64 s_last_error_block;
    const char *s_last_error_func;
    time64_t s_last_error_time;
    struct work_struct s_error_work;
    atomic_t s_fc_subtid;
    struct list_head s_fc_q[2];
    struct list_head s_fc_dentry_q[2];
    unsigned int s_fc_bytes;
    spinlock_t s_fc_lock;
    struct buffer_head *s_fc_bh;
    struct ext4_fc_stats s_fc_stats;
    tid_t s_fc_ineligible_tid;
    struct ext4_fc_replay_state s_fc_replay_state;
};

In 6.2: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    long unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    unsigned int s_def_mount_opt2;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct percpu_counter s_sra_exceeded_retry_limit;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct buffer_head *s_mmp_bh;
    struct journal_s *s_journal;
    long unsigned int s_ext4_flags;
    struct mutex s_orphan_lock;
    struct list_head s_orphan;
    struct ext4_orphan_info s_orphan_info;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *s_journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *s_system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    struct list_head s_discard_list;
    struct work_struct s_discard_work;
    atomic_t s_retry_alloc_pending;
    struct list_head *s_mb_avg_fragment_size;
    rwlock_t *s_mb_avg_fragment_size_locks;
    struct list_head *s_mb_largest_free_orders;
    rwlock_t *s_mb_largest_free_orders_locks;
    long unsigned int s_stripe;
    unsigned int s_mb_max_linear_groups;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_mb_max_inode_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    unsigned int s_mb_prefetch;
    unsigned int s_mb_prefetch_limit;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_groups_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    atomic_t s_bal_cr0_bad_suggestions;
    atomic_t s_bal_cr1_bad_suggestions;
    atomic64_t s_bal_cX_groups_considered[4];
    atomic64_t s_bal_cX_hits[4];
    atomic64_t s_bal_cX_failed[4];
    atomic_t s_mb_buddies_generated;
    atomic64_t s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    long unsigned int s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ext4_journal_trigger s_journal_triggers[1];
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    atomic_t s_warning_count;
    atomic_t s_msg_count;
    struct fscrypt_dummy_policy s_dummy_enc_policy;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    u64 s_dax_part_off;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
    spinlock_t s_error_lock;
    int s_add_error_count;
    int s_first_error_code;
    __u32 s_first_error_line;
    __u32 s_first_error_ino;
    __u64 s_first_error_block;
    const char *s_first_error_func;
    time64_t s_first_error_time;
    int s_last_error_code;
    __u32 s_last_error_line;
    __u32 s_last_error_ino;
    __u64 s_last_error_block;
    const char *s_last_error_func;
    time64_t s_last_error_time;
    struct work_struct s_error_work;
    atomic_t s_fc_subtid;
    struct list_head s_fc_q[2];
    struct list_head s_fc_dentry_q[2];
    unsigned int s_fc_bytes;
    spinlock_t s_fc_lock;
    struct buffer_head *s_fc_bh;
    struct ext4_fc_stats s_fc_stats;
    tid_t s_fc_ineligible_tid;
    struct ext4_fc_replay_state s_fc_replay_state;
};

In 6.5: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    long unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    unsigned int s_def_mount_opt2;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct percpu_counter s_sra_exceeded_retry_limit;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct buffer_head *s_mmp_bh;
    struct journal_s *s_journal;
    long unsigned int s_ext4_flags;
    struct mutex s_orphan_lock;
    struct list_head s_orphan;
    struct ext4_orphan_info s_orphan_info;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *s_journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *s_system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    struct list_head s_discard_list;
    struct work_struct s_discard_work;
    atomic_t s_retry_alloc_pending;
    struct list_head *s_mb_avg_fragment_size;
    rwlock_t *s_mb_avg_fragment_size_locks;
    struct list_head *s_mb_largest_free_orders;
    rwlock_t *s_mb_largest_free_orders_locks;
    long unsigned int s_stripe;
    unsigned int s_mb_max_linear_groups;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    unsigned int s_mb_prefetch;
    unsigned int s_mb_prefetch_limit;
    unsigned int s_mb_best_avail_max_trim_order;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_cX_ex_scanned[5];
    atomic_t s_bal_groups_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_len_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    atomic_t s_bal_p2_aligned_bad_suggestions;
    atomic_t s_bal_goal_fast_bad_suggestions;
    atomic_t s_bal_best_avail_bad_suggestions;
    atomic64_t s_bal_cX_groups_considered[5];
    atomic64_t s_bal_cX_hits[5];
    atomic64_t s_bal_cX_failed[5];
    atomic_t s_mb_buddies_generated;
    atomic64_t s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    long unsigned int s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ext4_journal_trigger s_journal_triggers[1];
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    atomic_t s_warning_count;
    atomic_t s_msg_count;
    struct fscrypt_dummy_policy s_dummy_enc_policy;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    u64 s_dax_part_off;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
    spinlock_t s_error_lock;
    int s_add_error_count;
    int s_first_error_code;
    __u32 s_first_error_line;
    __u32 s_first_error_ino;
    __u64 s_first_error_block;
    const char *s_first_error_func;
    time64_t s_first_error_time;
    int s_last_error_code;
    __u32 s_last_error_line;
    __u32 s_last_error_ino;
    __u64 s_last_error_block;
    const char *s_last_error_func;
    time64_t s_last_error_time;
    struct work_struct s_error_work;
    atomic_t s_fc_subtid;
    struct list_head s_fc_q[2];
    struct list_head s_fc_dentry_q[2];
    unsigned int s_fc_bytes;
    spinlock_t s_fc_lock;
    struct buffer_head *s_fc_bh;
    struct ext4_fc_stats s_fc_stats;
    tid_t s_fc_ineligible_tid;
    struct ext4_fc_replay_state s_fc_replay_state;
};

In 6.8: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    long unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    unsigned int s_def_mount_opt2;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct percpu_counter s_sra_exceeded_retry_limit;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct buffer_head *s_mmp_bh;
    struct journal_s *s_journal;
    long unsigned int s_ext4_flags;
    struct mutex s_orphan_lock;
    struct list_head s_orphan;
    struct ext4_orphan_info s_orphan_info;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct bdev_handle *s_journal_bdev_handle;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *s_system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list[2];
    struct list_head s_discard_list;
    struct work_struct s_discard_work;
    atomic_t s_retry_alloc_pending;
    struct list_head *s_mb_avg_fragment_size;
    rwlock_t *s_mb_avg_fragment_size_locks;
    struct list_head *s_mb_largest_free_orders;
    rwlock_t *s_mb_largest_free_orders_locks;
    long unsigned int s_stripe;
    unsigned int s_mb_max_linear_groups;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    unsigned int s_mb_prefetch;
    unsigned int s_mb_prefetch_limit;
    unsigned int s_mb_best_avail_max_trim_order;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_cX_ex_scanned[5];
    atomic_t s_bal_groups_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_len_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    atomic_t s_bal_p2_aligned_bad_suggestions;
    atomic_t s_bal_goal_fast_bad_suggestions;
    atomic_t s_bal_best_avail_bad_suggestions;
    atomic64_t s_bal_cX_groups_considered[5];
    atomic64_t s_bal_cX_hits[5];
    atomic64_t s_bal_cX_failed[5];
    atomic_t s_mb_buddies_generated;
    atomic64_t s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    long unsigned int s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker *s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ext4_journal_trigger s_journal_triggers[1];
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    atomic_t s_warning_count;
    atomic_t s_msg_count;
    struct fscrypt_dummy_policy s_dummy_enc_policy;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
    u64 s_dax_part_off;
    errseq_t s_bdev_wb_err;
    spinlock_t s_bdev_wb_lock;
    spinlock_t s_error_lock;
    int s_add_error_count;
    int s_first_error_code;
    __u32 s_first_error_line;
    __u32 s_first_error_ino;
    __u64 s_first_error_block;
    const char *s_first_error_func;
    time64_t s_first_error_time;
    int s_last_error_code;
    __u32 s_last_error_line;
    __u32 s_last_error_ino;
    __u64 s_last_error_block;
    const char *s_last_error_func;
    time64_t s_last_error_time;
    struct work_struct s_sb_upd_work;
    atomic_t s_fc_subtid;
    struct list_head s_fc_q[2];
    struct list_head s_fc_dentry_q[2];
    unsigned int s_fc_bytes;
    spinlock_t s_fc_lock;
    struct buffer_head *s_fc_bh;
    struct ext4_fc_stats s_fc_stats;
    tid_t s_fc_ineligible_tid;
    struct ext4_fc_replay_state s_fc_replay_state;
};

Arch

In arm64: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

In armhf: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

In ppc64el: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

In riscv64: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

Flavor

In aws: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

In azure: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

In gcp: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

In lowlatency: ✅

struct ext4_sb_info {
    long unsigned int s_desc_size;
    long unsigned int s_inodes_per_block;
    long unsigned int s_blocks_per_group;
    long unsigned int s_clusters_per_group;
    long unsigned int s_inodes_per_group;
    long unsigned int s_itb_per_group;
    long unsigned int s_gdb_count;
    long unsigned int s_desc_per_block;
    ext4_group_t s_groups_count;
    ext4_group_t s_blockfile_groups;
    long unsigned int s_overhead;
    unsigned int s_cluster_ratio;
    unsigned int s_cluster_bits;
    loff_t s_bitmap_maxbytes;
    struct buffer_head *s_sbh;
    struct ext4_super_block *s_es;
    struct buffer_head **s_group_desc;
    unsigned int s_mount_opt;
    unsigned int s_mount_opt2;
    unsigned int s_mount_flags;
    unsigned int s_def_mount_opt;
    ext4_fsblk_t s_sb_block;
    atomic64_t s_resv_clusters;
    kuid_t s_resuid;
    kgid_t s_resgid;
    short unsigned int s_mount_state;
    short unsigned int s_pad;
    int s_addr_per_block_bits;
    int s_desc_per_block_bits;
    int s_inode_size;
    int s_first_ino;
    unsigned int s_inode_readahead_blks;
    unsigned int s_inode_goal;
    u32 s_hash_seed[4];
    int s_def_hash_version;
    int s_hash_unsigned;
    struct percpu_counter s_freeclusters_counter;
    struct percpu_counter s_freeinodes_counter;
    struct percpu_counter s_dirs_counter;
    struct percpu_counter s_dirtyclusters_counter;
    struct blockgroup_lock *s_blockgroup_lock;
    struct proc_dir_entry *s_proc;
    struct kobject s_kobj;
    struct completion s_kobj_unregister;
    struct super_block *s_sb;
    struct unicode_map *s_encoding;
    __u16 s_encoding_flags;
    struct journal_s *s_journal;
    struct list_head s_orphan;
    struct mutex s_orphan_lock;
    long unsigned int s_ext4_flags;
    long unsigned int s_commit_interval;
    u32 s_max_batch_time;
    u32 s_min_batch_time;
    struct block_device *journal_bdev;
    char * s_qf_names[3];
    int s_jquota_fmt;
    unsigned int s_want_extra_isize;
    struct ext4_system_blocks *system_blks;
    struct ext4_group_info ***s_group_info;
    struct inode *s_buddy_cache;
    spinlock_t s_md_lock;
    short unsigned int *s_mb_offsets;
    unsigned int *s_mb_maxs;
    unsigned int s_group_info_size;
    unsigned int s_mb_free_pending;
    struct list_head s_freed_data_list;
    long unsigned int s_stripe;
    unsigned int s_mb_stream_request;
    unsigned int s_mb_max_to_scan;
    unsigned int s_mb_min_to_scan;
    unsigned int s_mb_stats;
    unsigned int s_mb_order2_reqs;
    unsigned int s_mb_group_prealloc;
    unsigned int s_max_dir_size_kb;
    long unsigned int s_mb_last_group;
    long unsigned int s_mb_last_start;
    atomic_t s_bal_reqs;
    atomic_t s_bal_success;
    atomic_t s_bal_allocated;
    atomic_t s_bal_ex_scanned;
    atomic_t s_bal_goals;
    atomic_t s_bal_breaks;
    atomic_t s_bal_2orders;
    spinlock_t s_bal_lock;
    long unsigned int s_mb_buddies_generated;
    long long unsigned int s_mb_generation_time;
    atomic_t s_mb_lost_chunks;
    atomic_t s_mb_preallocated;
    atomic_t s_mb_discarded;
    atomic_t s_lock_busy;
    struct ext4_locality_group *s_locality_groups;
    long unsigned int s_sectors_written_start;
    u64 s_kbytes_written;
    unsigned int s_extent_max_zeroout_kb;
    unsigned int s_log_groups_per_flex;
    struct flex_groups **s_flex_groups;
    ext4_group_t s_flex_groups_allocated;
    struct workqueue_struct *rsv_conversion_wq;
    struct timer_list s_err_report;
    struct ext4_li_request *s_li_request;
    unsigned int s_li_wait_mult;
    struct task_struct *s_mmp_tsk;
    atomic_t s_last_trim_minblks;
    struct crypto_shash *s_chksum_driver;
    __u32 s_csum_seed;
    struct shrinker s_es_shrinker;
    struct list_head s_es_list;
    long int s_es_nr_inode;
    struct ext4_es_stats s_es_stats;
    struct mb_cache *s_ea_block_cache;
    struct mb_cache *s_ea_inode_cache;
    spinlock_t s_es_lock;
    struct ratelimit_state s_err_ratelimit_state;
    struct ratelimit_state s_warning_ratelimit_state;
    struct ratelimit_state s_msg_ratelimit_state;
    struct percpu_rw_semaphore s_writepages_rwsem;
    struct dax_device *s_daxdev;
};

Differences