diff options
Diffstat (limited to 'e2fslib/jfs_dat.h')
| -rw-r--r-- | e2fslib/jfs_dat.h | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/e2fslib/jfs_dat.h b/e2fslib/jfs_dat.h deleted file mode 100644 index d6ad9c4..0000000 --- a/e2fslib/jfs_dat.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - * jfs_dat.h --- stripped down header file which only contains the JFS - * on-disk data structures - */ - -#define JFS_MAGIC_NUMBER 0xc03b3998U /* The first 4 bytes of /dev/random! */ - -/* - * On-disk structures - */ - -/* - * Descriptor block types: - */ - -#define JFS_DESCRIPTOR_BLOCK 1 -#define JFS_COMMIT_BLOCK 2 -#define JFS_SUPERBLOCK 3 - -/* - * Standard header for all descriptor blocks: - */ -typedef struct journal_header_s -{ - __u32 h_magic; - __u32 h_blocktype; - __u32 h_sequence; -} journal_header_t; - - -/* - * The block tag: used to describe a single buffer in the journal - */ -typedef struct journal_block_tag_s -{ - __u32 t_blocknr; /* The on-disk block number */ - __u32 t_flags; /* See below */ -} journal_block_tag_t; - -/* Definitions for the journal tag flags word: */ -#define JFS_FLAG_ESCAPE 1 /* on-disk block is escaped */ -#define JFS_FLAG_SAME_UUID 2 /* block has same uuid as previous */ -#define JFS_FLAG_DELETED 4 /* block deleted by this transaction */ -#define JFS_FLAG_LAST_TAG 8 /* last tag in this descriptor block */ - - -/* - * The journal superblock - */ -typedef struct journal_superblock_s -{ - journal_header_t s_header; - - /* Static information describing the journal */ - __u32 s_blocksize; /* journal device blocksize */ - __u32 s_maxlen; /* total blocks in journal file */ - __u32 s_first; /* first block of log information */ - - /* Dynamic information describing the current state of the log */ - __u32 s_sequence; /* first commit ID expected in log */ - __u32 s_start; /* blocknr of start of log */ - -} journal_superblock_t; - |