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| author | Stefan Brüns <stefan.bruens@rwth-aachen.de> | 2016-09-17 02:10:06 +0200 |
|---|---|---|
| committer | Dongjin Kim <tobetter@gmail.com> | 2020-02-10 22:44:41 +0900 |
| commit | 851818665e1b4c667ab3706d99d855a4d802c9f6 (patch) | |
| tree | 6519bd79d13dc9a0eb864128f06bc0706b4d18e1 | |
| parent | b8be547b3d0c993ee03d32f14a0b05b8ead3a3ee (diff) | |
| download | u-boot-odroid-c1-851818665e1b4c667ab3706d99d855a4d802c9f6.tar.gz | |
ext4: Update ext2/3/4 superblock, group descriptor and inode structures
Most importantly, the superblock provides the used group descriptor size,
which is required for the EXT4_FEATURE_INCOMPAT_64BIT.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
| -rw-r--r-- | include/ext_common.h | 50 |
1 files changed, 46 insertions, 4 deletions
diff --git a/include/ext_common.h b/include/ext_common.h index 67a4e70d40..a7a6abc8fa 100644 --- a/include/ext_common.h +++ b/include/ext_common.h @@ -99,6 +99,33 @@ struct ext2_sblock { char volume_name[16]; char last_mounted_on[64]; __le32 compression_info; + uint8_t prealloc_blocks; + uint8_t prealloc_dir_blocks; + __le16 reserved_gdt_blocks; + uint8_t journal_uuid[16]; + __le32 journal_inode; + __le32 journal_dev; + __le32 last_orphan; + __le32 hash_seed[4]; + uint8_t default_hash_version; + uint8_t journal_backup_type; + __le16 descriptor_size; + __le32 default_mount_options; + __le32 first_meta_block_group; + __le32 mkfs_time; + __le32 journal_blocks[17]; + __le32 total_blocks_high; + __le32 reserved_blocks_high; + __le32 free_blocks_high; + __le16 min_extra_inode_size; + __le16 want_extra_inode_size; + __le32 flags; + __le16 raid_stride; + __le16 mmp_interval; + __le64 mmp_block; + __le32 raid_stripe_width; + uint8_t log2_groups_per_flex; + uint8_t checksum_type; }; struct ext2_block_group { @@ -109,9 +136,23 @@ struct ext2_block_group { __le16 free_inodes; /* Free inodes count */ __le16 used_dir_cnt; /* Directories count */ __le16 bg_flags; - __le32 bg_reserved[2]; + __le32 bg_exclude_bitmap; + __le16 bg_block_id_csum; + __le16 bg_inode_id_csum; __le16 bg_itable_unused; /* Unused inodes count */ - __le16 bg_checksum; /* crc16(s_uuid+grouo_num+group_desc)*/ + __le16 bg_checksum; /* crc16(s_uuid+group_num+group_desc)*/ + /* following fields only exist if descriptor size is 64 */ + __le32 block_id_high; + __le32 inode_id_high; + __le32 inode_table_id_high; + __le16 free_blocks_high; + __le16 free_inodes_high; + __le16 used_dir_cnt_high; + __le16 bg_itable_unused_high; + __le32 bg_exclude_bitmap_high; + __le16 bg_block_id_csum_high; + __le16 bg_inode_id_csum_high; + __le32 bg_reserved; }; /* The ext2 inode. */ @@ -125,7 +166,7 @@ struct ext2_inode { __le32 dtime; __le16 gid; __le16 nlinks; - __le32 blockcnt; /* Blocks of 512 bytes!! */ + __le32 blockcnt; /* Blocks of either 512 or block_size bytes */ __le32 flags; __le32 osd1; union { @@ -136,10 +177,11 @@ struct ext2_inode { __le32 triple_indir_block; } blocks; char symlink[60]; + char inline_data[60]; } b; __le32 version; __le32 acl; - __le32 dir_acl; + __le32 size_high; /* previously dir_acl, but never used */ __le32 fragment_addr; __le32 osd2[3]; }; |