1 // SPDX-License-Identifier: GPL-2.0
3 * fs/partitions/ultrix.c
5 * Code extracted from drivers/block/genhd.c
7 * Re-organised Jul 1999 Russell King
13 int ultrix_partition(struct parsed_partitions *state)
18 struct ultrix_disklabel {
19 s32 pt_magic; /* magic no. indicating part. info exits */
20 s32 pt_valid; /* set by driver if pt is current */
22 s32 pi_nblocks; /* no. of sectors */
23 u32 pi_blkoff; /* block offset for start */
27 #define PT_MAGIC 0x032957 /* Partition magic number */
28 #define PT_VALID 1 /* Indicates if struct is valid */
30 data = read_part_sector(state, (16384 - sizeof(*label))/512, §);
34 label = (struct ultrix_disklabel *)(data + 512 - sizeof(*label));
36 if (label->pt_magic == PT_MAGIC && label->pt_valid == PT_VALID) {
38 if (label->pt_part[i].pi_nblocks)
39 put_partition(state, i+1,
40 label->pt_part[i].pi_blkoff,
41 label->pt_part[i].pi_nblocks);
43 strlcat(state->pp_buf, "\n", PAGE_SIZE);