From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- fs/partitions/osf.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 fs/partitions/osf.c (limited to 'fs/partitions/osf.c') diff --git a/fs/partitions/osf.c b/fs/partitions/osf.c new file mode 100644 index 0000000..c05c17bc --- /dev/null +++ b/fs/partitions/osf.c @@ -0,0 +1,78 @@ +/* + * fs/partitions/osf.c + * + * Code extracted from drivers/block/genhd.c + * + * Copyright (C) 1991-1998 Linus Torvalds + * Re-organised Feb 1998 Russell King + */ + +#include "check.h" +#include "osf.h" + +int osf_partition(struct parsed_partitions *state, struct block_device *bdev) +{ + int i; + int slot = 1; + Sector sect; + unsigned char *data; + struct disklabel { + __le32 d_magic; + __le16 d_type,d_subtype; + u8 d_typename[16]; + u8 d_packname[16]; + __le32 d_secsize; + __le32 d_nsectors; + __le32 d_ntracks; + __le32 d_ncylinders; + __le32 d_secpercyl; + __le32 d_secprtunit; + __le16 d_sparespertrack; + __le16 d_sparespercyl; + __le32 d_acylinders; + __le16 d_rpm, d_interleave, d_trackskew, d_cylskew; + __le32 d_headswitch, d_trkseek, d_flags; + __le32 d_drivedata[5]; + __le32 d_spare[5]; + __le32 d_magic2; + __le16 d_checksum; + __le16 d_npartitions; + __le32 d_bbsize, d_sbsize; + struct d_partition { + __le32 p_size; + __le32 p_offset; + __le32 p_fsize; + u8 p_fstype; + u8 p_frag; + __le16 p_cpg; + } d_partitions[8]; + } * label; + struct d_partition * partition; + + data = read_dev_sector(bdev, 0, §); + if (!data) + return -1; + + label = (struct disklabel *) (data+64); + partition = label->d_partitions; + if (le32_to_cpu(label->d_magic) != DISKLABELMAGIC) { + put_dev_sector(sect); + return 0; + } + if (le32_to_cpu(label->d_magic2) != DISKLABELMAGIC) { + put_dev_sector(sect); + return 0; + } + for (i = 0 ; i < le16_to_cpu(label->d_npartitions); i++, partition++) { + if (slot == state->limit) + break; + if (le32_to_cpu(partition->p_size)) + put_partition(state, slot, + le32_to_cpu(partition->p_offset), + le32_to_cpu(partition->p_size)); + slot++; + } + printk("\n"); + put_dev_sector(sect); + return 1; +} -- cgit v1.1