ext4_super_block Struct Reference

#include <ext4.h>

Data Fields
__le32	s_inodes_count
__le32	s_blocks_count_lo
__le32	s_r_blocks_count_lo
__le32	s_free_blocks_count_lo
__le32	s_free_inodes_count
__le32	s_first_data_block
__le32	s_log_block_size
__le32	s_log_cluster_size
__le32	s_blocks_per_group
__le32	s_clusters_per_group
__le32	s_inodes_per_group
__le32	s_mtime
__le32	s_wtime
__le16	s_mnt_count
__le16	s_max_mnt_count
__le16	s_magic
__le16	s_state
__le16	s_errors
__le16	s_minor_rev_level
__le32	s_lastcheck
__le32	s_checkinterval
__le32	s_creator_os
__le32	s_rev_level
__le16	s_def_resuid
__le16	s_def_resgid
__le32	s_first_ino
__le16	s_inode_size
__le16	s_block_group_nr
__le32	s_feature_compat
__le32	s_feature_incompat
__le32	s_feature_ro_compat
__u8	s_uuid [16]
char	s_volume_name [16]
char	s_last_mounted [64]
__le32	s_algorithm_usage_bitmap
__u8	s_prealloc_blocks
__u8	s_prealloc_dir_blocks
__le16	s_reserved_gdt_blocks
__u8	s_journal_uuid [16]
__le32	s_journal_inum
__le32	s_journal_dev
__le32	s_last_orphan
__le32	s_hash_seed [4]
__u8	s_def_hash_version
__u8	s_jnl_backup_type
__le16	s_desc_size
__le32	s_default_mount_opts
__le32	s_first_meta_bg
__le32	s_mkfs_time
__le32	s_jnl_blocks [17]
__le32	s_blocks_count_hi
__le32	s_r_blocks_count_hi
__le32	s_free_blocks_count_hi
__le16	s_min_extra_isize
__le16	s_want_extra_isize
__le32	s_flags
__le16	s_raid_stride
__le16	s_mmp_update_interval
__le64	s_mmp_block
__le32	s_raid_stripe_width
__u8	s_log_groups_per_flex
__u8	s_checksum_type
__le16	s_reserved_pad
__le64	s_kbytes_written
__le32	s_snapshot_inum
__le32	s_snapshot_id
__le64	s_snapshot_r_blocks_count
__le32	s_snapshot_list
__le32	s_error_count
__le32	s_first_error_time
__le32	s_first_error_ino
__le64	s_first_error_block
__u8	s_first_error_func [32]
__le32	s_first_error_line
__le32	s_last_error_time
__le32	s_last_error_ino
__le32	s_last_error_line
__le64	s_last_error_block
__u8	s_last_error_func [32]
__u8	s_mount_opts [64]
__le32	s_usr_quota_inum
__le32	s_grp_quota_inum
__le32	s_overhead_clusters
__le32	s_reserved [108]
__le32	s_checksum

Detailed Description

Definition at line 1025 of file ext4.h.

Field Documentation

__le32 s_algorithm_usage_bitmap

Definition at line 1073 of file ext4.h.

__le16 s_block_group_nr

Definition at line 1066 of file ext4.h.

__le32 s_blocks_count_hi

Definition at line 1097 of file ext4.h.

__le32 s_blocks_count_lo

Definition at line 1027 of file ext4.h.

__le32 s_blocks_per_group

Definition at line 1034 of file ext4.h.

__le32 s_checkinterval

Definition at line 1046 of file ext4.h.

__le32 s_checksum

Definition at line 1135 of file ext4.h.

__u8 s_checksum_type

Definition at line 1108 of file ext4.h.

__le32 s_clusters_per_group

Definition at line 1035 of file ext4.h.

__le32 s_creator_os

Definition at line 1047 of file ext4.h.

__u8 s_def_hash_version

Definition at line 1089 of file ext4.h.

__le16 s_def_resgid

Definition at line 1050 of file ext4.h.

__le16 s_def_resuid

Definition at line 1049 of file ext4.h.

__le32 s_default_mount_opts

Definition at line 1092 of file ext4.h.

__le16 s_desc_size

Definition at line 1091 of file ext4.h.

__le32 s_error_count

Definition at line 1118 of file ext4.h.

__le16 s_errors

Definition at line 1043 of file ext4.h.

__le32 s_feature_compat

Definition at line 1067 of file ext4.h.

__le32 s_feature_incompat

Definition at line 1068 of file ext4.h.

__le32 s_feature_ro_compat

Definition at line 1069 of file ext4.h.

__le32 s_first_data_block

Definition at line 1031 of file ext4.h.

__le64 s_first_error_block

Definition at line 1121 of file ext4.h.

__u8 s_first_error_func[32]

Definition at line 1122 of file ext4.h.

__le32 s_first_error_ino

Definition at line 1120 of file ext4.h.

__le32 s_first_error_line

Definition at line 1123 of file ext4.h.

__le32 s_first_error_time

Definition at line 1119 of file ext4.h.

__le32 s_first_ino

Definition at line 1064 of file ext4.h.

__le32 s_first_meta_bg

Definition at line 1093 of file ext4.h.

__le32 s_flags

Definition at line 1102 of file ext4.h.

__le32 s_free_blocks_count_hi

Definition at line 1099 of file ext4.h.

__le32 s_free_blocks_count_lo

Definition at line 1029 of file ext4.h.

__le32 s_free_inodes_count

Definition at line 1030 of file ext4.h.

__le32 s_grp_quota_inum

Definition at line 1132 of file ext4.h.

__le32 s_hash_seed[4]

Definition at line 1088 of file ext4.h.

__le16 s_inode_size

Definition at line 1065 of file ext4.h.

__le32 s_inodes_count

Definition at line 1026 of file ext4.h.

__le32 s_inodes_per_group

Definition at line 1036 of file ext4.h.

__u8 s_jnl_backup_type

Definition at line 1090 of file ext4.h.

__le32 s_jnl_blocks[17]

Definition at line 1095 of file ext4.h.

__le32 s_journal_dev

Definition at line 1086 of file ext4.h.

__le32 s_journal_inum

Definition at line 1085 of file ext4.h.

__u8 s_journal_uuid[16]

Definition at line 1084 of file ext4.h.

__le64 s_kbytes_written

Definition at line 1110 of file ext4.h.

__le64 s_last_error_block

Definition at line 1127 of file ext4.h.

__u8 s_last_error_func[32]

Definition at line 1128 of file ext4.h.

__le32 s_last_error_ino

Definition at line 1125 of file ext4.h.

__le32 s_last_error_line

Definition at line 1126 of file ext4.h.

__le32 s_last_error_time

Definition at line 1124 of file ext4.h.

char s_last_mounted[64]

Definition at line 1072 of file ext4.h.

__le32 s_last_orphan

Definition at line 1087 of file ext4.h.

__le32 s_lastcheck

Definition at line 1045 of file ext4.h.

__le32 s_log_block_size

Definition at line 1032 of file ext4.h.

__le32 s_log_cluster_size

Definition at line 1033 of file ext4.h.

__u8 s_log_groups_per_flex

Definition at line 1107 of file ext4.h.

__le16 s_magic

Definition at line 1041 of file ext4.h.

__le16 s_max_mnt_count

Definition at line 1040 of file ext4.h.

__le16 s_min_extra_isize

Definition at line 1100 of file ext4.h.

__le16 s_minor_rev_level

Definition at line 1044 of file ext4.h.

__le32 s_mkfs_time

Definition at line 1094 of file ext4.h.

__le64 s_mmp_block

Definition at line 1105 of file ext4.h.

__le16 s_mmp_update_interval

Definition at line 1104 of file ext4.h.

__le16 s_mnt_count

Definition at line 1039 of file ext4.h.

__u8 s_mount_opts[64]

Definition at line 1130 of file ext4.h.

__le32 s_mtime

Definition at line 1037 of file ext4.h.

__le32 s_overhead_clusters

Definition at line 1133 of file ext4.h.

__u8 s_prealloc_blocks

Definition at line 1078 of file ext4.h.

__u8 s_prealloc_dir_blocks

Definition at line 1079 of file ext4.h.

__le32 s_r_blocks_count_hi

Definition at line 1098 of file ext4.h.

__le32 s_r_blocks_count_lo

Definition at line 1028 of file ext4.h.

__le16 s_raid_stride

Definition at line 1103 of file ext4.h.

__le32 s_raid_stripe_width

Definition at line 1106 of file ext4.h.

__le32 s_reserved[108]

Definition at line 1134 of file ext4.h.

__le16 s_reserved_gdt_blocks

Definition at line 1080 of file ext4.h.

__le16 s_reserved_pad

Definition at line 1109 of file ext4.h.

__le32 s_rev_level

Definition at line 1048 of file ext4.h.

__le32 s_snapshot_id

Definition at line 1112 of file ext4.h.

__le32 s_snapshot_inum

Definition at line 1111 of file ext4.h.

__le32 s_snapshot_list

Definition at line 1115 of file ext4.h.

__le64 s_snapshot_r_blocks_count

Definition at line 1113 of file ext4.h.

__le16 s_state

Definition at line 1042 of file ext4.h.

__le32 s_usr_quota_inum

Definition at line 1131 of file ext4.h.

__u8 s_uuid[16]

Definition at line 1070 of file ext4.h.

char s_volume_name[16]

Definition at line 1071 of file ext4.h.

__le16 s_want_extra_isize

Definition at line 1101 of file ext4.h.

__le32 s_wtime

Definition at line 1038 of file ext4.h.

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The documentation for this struct was generated from the following file:

• fs/ext4/ext4.h