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/ultrix.c |
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 'fs/partitions/ultrix.c')
-rw-r--r-- | fs/partitions/ultrix.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/fs/partitions/ultrix.c b/fs/partitions/ultrix.c new file mode 100644 index 000000000000..8a8d4d9db314 --- /dev/null +++ b/fs/partitions/ultrix.c | |||
@@ -0,0 +1,47 @@ | |||
1 | /* | ||
2 | * fs/partitions/ultrix.c | ||
3 | * | ||
4 | * Code extracted from drivers/block/genhd.c | ||
5 | * | ||
6 | * Re-organised Jul 1999 Russell King | ||
7 | */ | ||
8 | |||
9 | #include "check.h" | ||
10 | |||
11 | int ultrix_partition(struct parsed_partitions *state, struct block_device *bdev) | ||
12 | { | ||
13 | int i; | ||
14 | Sector sect; | ||
15 | unsigned char *data; | ||
16 | struct ultrix_disklabel { | ||
17 | s32 pt_magic; /* magic no. indicating part. info exits */ | ||
18 | s32 pt_valid; /* set by driver if pt is current */ | ||
19 | struct pt_info { | ||
20 | s32 pi_nblocks; /* no. of sectors */ | ||
21 | u32 pi_blkoff; /* block offset for start */ | ||
22 | } pt_part[8]; | ||
23 | } *label; | ||
24 | |||
25 | #define PT_MAGIC 0x032957 /* Partition magic number */ | ||
26 | #define PT_VALID 1 /* Indicates if struct is valid */ | ||
27 | |||
28 | data = read_dev_sector(bdev, (16384 - sizeof(*label))/512, §); | ||
29 | if (!data) | ||
30 | return -1; | ||
31 | |||
32 | label = (struct ultrix_disklabel *)(data + 512 - sizeof(*label)); | ||
33 | |||
34 | if (label->pt_magic == PT_MAGIC && label->pt_valid == PT_VALID) { | ||
35 | for (i=0; i<8; i++) | ||
36 | if (label->pt_part[i].pi_nblocks) | ||
37 | put_partition(state, i+1, | ||
38 | label->pt_part[i].pi_blkoff, | ||
39 | label->pt_part[i].pi_nblocks); | ||
40 | put_dev_sector(sect); | ||
41 | printk ("\n"); | ||
42 | return 1; | ||
43 | } else { | ||
44 | put_dev_sector(sect); | ||
45 | return 0; | ||
46 | } | ||
47 | } | ||