diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/efs_vh.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/efs_vh.h')
-rw-r--r-- | include/linux/efs_vh.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/linux/efs_vh.h b/include/linux/efs_vh.h new file mode 100644 index 000000000000..8a11150c61fe --- /dev/null +++ b/include/linux/efs_vh.h | |||
@@ -0,0 +1,53 @@ | |||
1 | /* | ||
2 | * efs_vh.h | ||
3 | * | ||
4 | * Copyright (c) 1999 Al Smith | ||
5 | * | ||
6 | * Portions derived from IRIX header files (c) 1985 MIPS Computer Systems, Inc. | ||
7 | */ | ||
8 | |||
9 | #ifndef __EFS_VH_H__ | ||
10 | #define __EFS_VH_H__ | ||
11 | |||
12 | #define VHMAGIC 0xbe5a941 /* volume header magic number */ | ||
13 | #define NPARTAB 16 /* 16 unix partitions */ | ||
14 | #define NVDIR 15 /* max of 15 directory entries */ | ||
15 | #define BFNAMESIZE 16 /* max 16 chars in boot file name */ | ||
16 | #define VDNAMESIZE 8 | ||
17 | |||
18 | struct volume_directory { | ||
19 | char vd_name[VDNAMESIZE]; /* name */ | ||
20 | __be32 vd_lbn; /* logical block number */ | ||
21 | __be32 vd_nbytes; /* file length in bytes */ | ||
22 | }; | ||
23 | |||
24 | struct partition_table { /* one per logical partition */ | ||
25 | __be32 pt_nblks; /* # of logical blks in partition */ | ||
26 | __be32 pt_firstlbn; /* first lbn of partition */ | ||
27 | __be32 pt_type; /* use of partition */ | ||
28 | }; | ||
29 | |||
30 | struct volume_header { | ||
31 | __be32 vh_magic; /* identifies volume header */ | ||
32 | __be16 vh_rootpt; /* root partition number */ | ||
33 | __be16 vh_swappt; /* swap partition number */ | ||
34 | char vh_bootfile[BFNAMESIZE]; /* name of file to boot */ | ||
35 | char pad[48]; /* device param space */ | ||
36 | struct volume_directory vh_vd[NVDIR]; /* other vol hdr contents */ | ||
37 | struct partition_table vh_pt[NPARTAB]; /* device partition layout */ | ||
38 | __be32 vh_csum; /* volume header checksum */ | ||
39 | __be32 vh_fill; /* fill out to 512 bytes */ | ||
40 | }; | ||
41 | |||
42 | /* partition type sysv is used for EFS format CD-ROM partitions */ | ||
43 | #define SGI_SYSV 0x05 | ||
44 | #define SGI_EFS 0x07 | ||
45 | #define IS_EFS(x) (((x) == SGI_EFS) || ((x) == SGI_SYSV)) | ||
46 | |||
47 | struct pt_types { | ||
48 | int pt_type; | ||
49 | char *pt_name; | ||
50 | }; | ||
51 | |||
52 | #endif /* __EFS_VH_H__ */ | ||
53 | |||