Contents of /trunk/mkinitrd-magellan/klibc/usr/kinit/fstype/ext3_fs.h
Parent Directory | Revision Log
Revision 532 -
(show annotations)
(download)
Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
File MIME type: text/plain
File size: 3505 byte(s)
Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
File MIME type: text/plain
File size: 3505 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | /* |
2 | * The second extended file system magic number |
3 | */ |
4 | #define EXT3_SUPER_MAGIC 0xEF53 |
5 | |
6 | #define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004 |
7 | |
8 | /* |
9 | * Structure of the super block |
10 | */ |
11 | struct ext3_super_block { |
12 | /*00*/ __u32 s_inodes_count; |
13 | /* Inodes count */ |
14 | __u32 s_blocks_count; /* Blocks count */ |
15 | __u32 s_r_blocks_count; /* Reserved blocks count */ |
16 | __u32 s_free_blocks_count; /* Free blocks count */ |
17 | /*10*/ __u32 s_free_inodes_count; |
18 | /* Free inodes count */ |
19 | __u32 s_first_data_block; /* First Data Block */ |
20 | __u32 s_log_block_size; /* Block size */ |
21 | __s32 s_log_frag_size; /* Fragment size */ |
22 | /*20*/ __u32 s_blocks_per_group; |
23 | /* # Blocks per group */ |
24 | __u32 s_frags_per_group; /* # Fragments per group */ |
25 | __u32 s_inodes_per_group; /* # Inodes per group */ |
26 | __u32 s_mtime; /* Mount time */ |
27 | /*30*/ __u32 s_wtime; |
28 | /* Write time */ |
29 | __u16 s_mnt_count; /* Mount count */ |
30 | __s16 s_max_mnt_count; /* Maximal mount count */ |
31 | __u16 s_magic; /* Magic signature */ |
32 | __u16 s_state; /* File system state */ |
33 | __u16 s_errors; /* Behaviour when detecting errors */ |
34 | __u16 s_minor_rev_level; /* minor revision level */ |
35 | /*40*/ __u32 s_lastcheck; |
36 | /* time of last check */ |
37 | __u32 s_checkinterval; /* max. time between checks */ |
38 | __u32 s_creator_os; /* OS */ |
39 | __u32 s_rev_level; /* Revision level */ |
40 | /*50*/ __u16 s_def_resuid; |
41 | /* Default uid for reserved blocks */ |
42 | __u16 s_def_resgid; /* Default gid for reserved blocks */ |
43 | /* |
44 | * These fields are for EXT3_DYNAMIC_REV superblocks only. |
45 | * |
46 | * Note: the difference between the compatible feature set and |
47 | * the incompatible feature set is that if there is a bit set |
48 | * in the incompatible feature set that the kernel doesn't |
49 | * know about, it should refuse to mount the filesystem. |
50 | * |
51 | * e2fsck's requirements are more strict; if it doesn't know |
52 | * about a feature in either the compatible or incompatible |
53 | * feature set, it must abort and not try to meddle with |
54 | * things it doesn't understand... |
55 | */ |
56 | __u32 s_first_ino; /* First non-reserved inode */ |
57 | __u16 s_inode_size; /* size of inode structure */ |
58 | __u16 s_block_group_nr; /* block group # of this superblock */ |
59 | __u32 s_feature_compat; /* compatible feature set */ |
60 | /*60*/ __u32 s_feature_incompat; |
61 | /* incompatible feature set */ |
62 | __u32 s_feature_ro_compat; /* readonly-compatible feature set */ |
63 | /*68*/ __u8 s_uuid[16]; |
64 | /* 128-bit uuid for volume */ |
65 | /*78*/ char s_volume_name[16]; |
66 | /* volume name */ |
67 | /*88*/ char s_last_mounted[64]; |
68 | /* directory where last mounted */ |
69 | /*C8*/ __u32 s_algorithm_usage_bitmap; |
70 | /* For compression */ |
71 | /* |
72 | * Performance hints. Directory preallocation should only |
73 | * happen if the EXT3_FEATURE_COMPAT_DIR_PREALLOC flag is on. |
74 | */ |
75 | __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate */ |
76 | __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */ |
77 | __u16 s_padding1; |
78 | /* |
79 | * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set. |
80 | */ |
81 | /*D0*/ __u8 s_journal_uuid[16]; |
82 | /* uuid of journal superblock */ |
83 | /*E0*/ __u32 s_journal_inum; |
84 | /* inode number of journal file */ |
85 | __u32 s_journal_dev; /* device number of journal file */ |
86 | __u32 s_last_orphan; /* start of list of inodes to delete */ |
87 | __u32 s_hash_seed[4]; /* HTREE hash seed */ |
88 | __u8 s_def_hash_version; /* Default hash version to use */ |
89 | __u8 s_reserved_char_pad; |
90 | __u16 s_reserved_word_pad; |
91 | __u32 s_reserved[192]; /* Padding to the end of the block */ |
92 | }; |