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 /fs/partitions/osf.c |
Linux-2.6.12-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 'fs/partitions/osf.c')
-rw-r--r-- | fs/partitions/osf.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/fs/partitions/osf.c b/fs/partitions/osf.c new file mode 100644 index 00000000000..c05c17bc5df --- /dev/null +++ b/fs/partitions/osf.c | |||
@@ -0,0 +1,78 @@ | |||
1 | /* | ||
2 | * fs/partitions/osf.c | ||
3 | * | ||
4 | * Code extracted from drivers/block/genhd.c | ||
5 | * | ||
6 | * Copyright (C) 1991-1998 Linus Torvalds | ||
7 | * Re-organised Feb 1998 Russell King | ||
8 | */ | ||
9 | |||
10 | #include "check.h" | ||
11 | #include "osf.h" | ||
12 | |||
13 | int osf_partition(struct parsed_partitions *state, struct block_device *bdev) | ||
14 | { | ||
15 | int i; | ||
16 | int slot = 1; | ||
17 | Sector sect; | ||
18 | unsigned char *data; | ||
19 | struct disklabel { | ||
20 | __le32 d_magic; | ||
21 | __le16 d_type,d_subtype; | ||
22 | u8 d_typename[16]; | ||
23 | u8 d_packname[16]; | ||
24 | __le32 d_secsize; | ||
25 | __le32 d_nsectors; | ||
26 | __le32 d_ntracks; | ||
27 | __le32 d_ncylinders; | ||
28 | __le32 d_secpercyl; | ||
29 | __le32 d_secprtunit; | ||
30 | __le16 d_sparespertrack; | ||
31 | __le16 d_sparespercyl; | ||
32 | __le32 d_acylinders; | ||
33 | __le16 d_rpm, d_interleave, d_trackskew, d_cylskew; | ||
34 | __le32 d_headswitch, d_trkseek, d_flags; | ||
35 | __le32 d_drivedata[5]; | ||
36 | __le32 d_spare[5]; | ||
37 | __le32 d_magic2; | ||
38 | __le16 d_checksum; | ||
39 | __le16 d_npartitions; | ||
40 | __le32 d_bbsize, d_sbsize; | ||
41 | struct d_partition { | ||
42 | __le32 p_size; | ||
43 | __le32 p_offset; | ||
44 | __le32 p_fsize; | ||
45 | u8 p_fstype; | ||
46 | u8 p_frag; | ||
47 | __le16 p_cpg; | ||
48 | } d_partitions[8]; | ||
49 | } * label; | ||
50 | struct d_partition * partition; | ||
51 | |||
52 | data = read_dev_sector(bdev, 0, §); | ||
53 | if (!data) | ||
54 | return -1; | ||
55 | |||
56 | label = (struct disklabel *) (data+64); | ||
57 | partition = label->d_partitions; | ||
58 | if (le32_to_cpu(label->d_magic) != DISKLABELMAGIC) { | ||
59 | put_dev_sector(sect); | ||
60 | return 0; | ||
61 | } | ||
62 | if (le32_to_cpu(label->d_magic2) != DISKLABELMAGIC) { | ||
63 | put_dev_sector(sect); | ||
64 | return 0; | ||
65 | } | ||
66 | for (i = 0 ; i < le16_to_cpu(label->d_npartitions); i++, partition++) { | ||
67 | if (slot == state->limit) | ||
68 | break; | ||
69 | if (le32_to_cpu(partition->p_size)) | ||
70 | put_partition(state, slot, | ||
71 | le32_to_cpu(partition->p_offset), | ||
72 | le32_to_cpu(partition->p_size)); | ||
73 | slot++; | ||
74 | } | ||
75 | printk("\n"); | ||
76 | put_dev_sector(sect); | ||
77 | return 1; | ||
78 | } | ||