Add support for backing up the journal inode location in the

[tools/e2fsprogs.git] / lib / ext2fs / ext2_fs.h

diff --git a/lib/ext2fs/ext2_fs.h b/lib/ext2fs/ext2_fs.h
index 6ace0a9..f9f96b5 100644 (file)
--- a/lib/ext2fs/ext2_fs.h
+++ b/lib/ext2fs/ext2_fs.h
@@ -441,12 +441,13 @@ struct ext2_super_block {
        __u32   s_last_orphan;          /* start of list of inodes to delete */
        __u32   s_hash_seed[4];         /* HTREE hash seed */
        __u8    s_def_hash_version;     /* Default hash version to use */
-       __u8    s_reserved_char_pad;
+       __u8    s_jnl_backup_type;      /* Default type of journal backup */
        __u16   s_reserved_word_pad;
        __u32   s_default_mount_opts;
        __u32   s_first_meta_bg;        /* First metablock group */
        __u32   s_mkfs_time;            /* When the filesystem was created */
-       __u32   s_reserved[189];        /* Padding to the end of the block */
+       __u32   s_jnl_blocks[16];       /* Backup of the journal inode */
+       __u32   s_reserved[173];        /* Padding to the end of the block */
 };
 
 /*
@@ -470,6 +471,11 @@ struct ext2_super_block {
 #define EXT2_GOOD_OLD_INODE_SIZE 128
 
 /*
+ * Journal inode backup types
+ */
+#define EXT3_JNL_BACKUP_BLOCKS 1
+
+/*
  * Feature set definitions
  */