diff options
Diffstat (limited to 'e2fsprogs/ext2fs/jfs_dat.h')
-rw-r--r-- | e2fsprogs/ext2fs/jfs_dat.h | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/e2fsprogs/ext2fs/jfs_dat.h b/e2fsprogs/ext2fs/jfs_dat.h deleted file mode 100644 index 136635de0..000000000 --- a/e2fsprogs/ext2fs/jfs_dat.h +++ /dev/null | |||
@@ -1,65 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * jfs_dat.h --- stripped down header file which only contains the JFS | ||
4 | * on-disk data structures | ||
5 | */ | ||
6 | |||
7 | #define JFS_MAGIC_NUMBER 0xc03b3998U /* The first 4 bytes of /dev/random! */ | ||
8 | |||
9 | /* | ||
10 | * On-disk structures | ||
11 | */ | ||
12 | |||
13 | /* | ||
14 | * Descriptor block types: | ||
15 | */ | ||
16 | |||
17 | #define JFS_DESCRIPTOR_BLOCK 1 | ||
18 | #define JFS_COMMIT_BLOCK 2 | ||
19 | #define JFS_SUPERBLOCK 3 | ||
20 | |||
21 | /* | ||
22 | * Standard header for all descriptor blocks: | ||
23 | */ | ||
24 | typedef struct journal_header_s | ||
25 | { | ||
26 | __u32 h_magic; | ||
27 | __u32 h_blocktype; | ||
28 | __u32 h_sequence; | ||
29 | } journal_header_t; | ||
30 | |||
31 | |||
32 | /* | ||
33 | * The block tag: used to describe a single buffer in the journal | ||
34 | */ | ||
35 | typedef struct journal_block_tag_s | ||
36 | { | ||
37 | __u32 t_blocknr; /* The on-disk block number */ | ||
38 | __u32 t_flags; /* See below */ | ||
39 | } journal_block_tag_t; | ||
40 | |||
41 | /* Definitions for the journal tag flags word: */ | ||
42 | #define JFS_FLAG_ESCAPE 1 /* on-disk block is escaped */ | ||
43 | #define JFS_FLAG_SAME_UUID 2 /* block has same uuid as previous */ | ||
44 | #define JFS_FLAG_DELETED 4 /* block deleted by this transaction */ | ||
45 | #define JFS_FLAG_LAST_TAG 8 /* last tag in this descriptor block */ | ||
46 | |||
47 | |||
48 | /* | ||
49 | * The journal superblock | ||
50 | */ | ||
51 | typedef struct journal_superblock_s | ||
52 | { | ||
53 | journal_header_t s_header; | ||
54 | |||
55 | /* Static information describing the journal */ | ||
56 | __u32 s_blocksize; /* journal device blocksize */ | ||
57 | __u32 s_maxlen; /* total blocks in journal file */ | ||
58 | __u32 s_first; /* first block of log information */ | ||
59 | |||
60 | /* Dynamic information describing the current state of the log */ | ||
61 | __u32 s_sequence; /* first commit ID expected in log */ | ||
62 | __u32 s_start; /* blocknr of start of log */ | ||
63 | |||
64 | } journal_superblock_t; | ||
65 | |||