diff options
Diffstat (limited to 'fs/partitions/msdos.c')
| -rw-r--r-- | fs/partitions/msdos.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c index 8c7af1777819..4ccec4cd1367 100644 --- a/fs/partitions/msdos.c +++ b/fs/partitions/msdos.c @@ -63,15 +63,25 @@ msdos_magic_present(unsigned char *p) #define AIX_LABEL_MAGIC4 0xC1 static int aix_magic_present(unsigned char *p, struct block_device *bdev) { + struct partition *pt = (struct partition *) (p + 0x1be); Sector sect; unsigned char *d; - int ret = 0; + int slot, ret = 0; - if (p[0] != AIX_LABEL_MAGIC1 && - p[1] != AIX_LABEL_MAGIC2 && - p[2] != AIX_LABEL_MAGIC3 && - p[3] != AIX_LABEL_MAGIC4) + if (!(p[0] == AIX_LABEL_MAGIC1 && + p[1] == AIX_LABEL_MAGIC2 && + p[2] == AIX_LABEL_MAGIC3 && + p[3] == AIX_LABEL_MAGIC4)) return 0; + /* Assume the partition table is valid if Linux partitions exists */ + for (slot = 1; slot <= 4; slot++, pt++) { + if (pt->sys_ind == LINUX_SWAP_PARTITION || + pt->sys_ind == LINUX_RAID_PARTITION || + pt->sys_ind == LINUX_DATA_PARTITION || + pt->sys_ind == LINUX_LVM_PARTITION || + is_extended_partition(pt)) + return 0; + } d = read_dev_sector(bdev, 7, §); if (d) { if (d[0] == '_' && d[1] == 'L' && d[2] == 'V' && d[3] == 'M') @@ -155,7 +165,7 @@ parse_extended(struct parsed_partitions *state, struct block_device *bdev, put_partition(state, state->next, next, size); if (SYS_IND(p) == LINUX_RAID_PARTITION) - state->parts[state->next].flags = 1; + state->parts[state->next].flags = ADDPART_FLAG_RAID; loopct = 0; if (++state->next == state->limit) goto done; |