1 files changed, 19 insertions, 1 deletions

diff --git a/include/bb_e2fs_defs.h b/include/bb_e2fs_defs.h
index 7974497ca..3edff8377 100644
--- a/include/bb_e2fs_defs.h
+++ b/include/bb_e2fs_defs.h
@@ -422,9 +422,27 @@ struct ext2_super_block {
         uint16_t        s_reserved_word_pad;
         uint32_t        s_default_mount_opts;
         uint32_t        s_first_meta_bg;        /* First metablock group */
+        /* ext3 additions */
         uint32_t        s_mkfs_time;            /* When the filesystem was created */
         uint32_t        s_jnl_blocks[17];       /* Backup of the journal inode */
-        uint32_t        s_reserved[172];        /* Padding to the end of the block */
+        /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
+/*150*/ uint32_t        s_blocks_count_hi;      /* Blocks count */
+        uint32_t        s_r_blocks_count_hi;    /* Reserved blocks count */
+        uint32_t        s_free_blocks_count_hi; /* Free blocks count */
+        uint16_t        s_min_extra_isize;      /* All inodes have at least # bytes */
+        uint16_t        s_want_extra_isize;     /* New inodes should reserve # bytes */
+        uint32_t        s_flags;                /* Miscellaneous flags */
+        uint16_t        s_raid_stride;          /* RAID stride */
+        uint16_t        s_mmp_interval;         /* # seconds to wait in MMP checking */
+        uint64_t        s_mmp_block;            /* Block for multi-mount protection */
+        uint32_t        s_raid_stripe_width;    /* blocks on all data disks (N*stride)*/
+        uint8_t         s_log_groups_per_flex;  /* FLEX_BG group size */
+        uint8_t         s_reserved_char_pad2;
+        uint16_t        s_reserved_pad;
+        uint32_t        s_reserved[162];        /* Padding to the end of the block */
+};
+struct BUG_ext2_super_block {
+        char bug[sizeof(struct ext2_super_block) == 1024 ? 1 : -1];
 };
 
 /*