aboutsummaryrefslogtreecommitdiff
path: root/fs/partitions
diff options
context:
space:
mode:
Diffstat (limited to 'fs/partitions')
-rw-r--r--fs/partitions/check.c15
-rw-r--r--fs/partitions/msdos.c22
-rw-r--r--fs/partitions/sgi.c2
-rw-r--r--fs/partitions/sun.c5
4 files changed, 33 insertions, 11 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 3d73d94d93a..ac32a2e8540 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -365,7 +365,7 @@ void delete_partition(struct gendisk *disk, int part)
kobject_put(&p->kobj);
}
-void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len)
+void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len, int flags)
{
struct hd_struct *p;
@@ -390,6 +390,15 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len)
if (!disk->part_uevent_suppress)
kobject_uevent(&p->kobj, KOBJ_ADD);
sysfs_create_link(&p->kobj, &block_subsys.kset.kobj, "subsystem");
+ if (flags & ADDPART_FLAG_WHOLEDISK) {
+ static struct attribute addpartattr = {
+ .name = "whole_disk",
+ .mode = S_IRUSR | S_IRGRP | S_IROTH,
+ .owner = THIS_MODULE,
+ };
+
+ sysfs_create_file(&p->kobj, &addpartattr);
+ }
partition_sysfs_add_subdir(p);
disk->part[part-1] = p;
}
@@ -543,9 +552,9 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
printk(" %s: p%d exceeds device capacity\n",
disk->disk_name, p);
}
- add_partition(disk, p, from, size);
+ add_partition(disk, p, from, size, state->parts[p].flags);
#ifdef CONFIG_BLK_DEV_MD
- if (state->parts[p].flags)
+ if (state->parts[p].flags & ADDPART_FLAG_RAID)
md_autodetect_dev(bdev->bd_dev+p);
#endif
}
diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c
index 8c7af177781..4ccec4cd136 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, &sect);
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;
diff --git a/fs/partitions/sgi.c b/fs/partitions/sgi.c
index 6fa4ff89510..ed5ac83fe83 100644
--- a/fs/partitions/sgi.c
+++ b/fs/partitions/sgi.c
@@ -72,7 +72,7 @@ int sgi_partition(struct parsed_partitions *state, struct block_device *bdev)
if (blocks) {
put_partition(state, slot, start, blocks);
if (be32_to_cpu(p->type) == LINUX_RAID_PARTITION)
- state->parts[slot].flags = 1;
+ state->parts[slot].flags = ADDPART_FLAG_RAID;
}
slot++;
}
diff --git a/fs/partitions/sun.c b/fs/partitions/sun.c
index 0a5927c806c..123f8b46c8b 100644
--- a/fs/partitions/sun.c
+++ b/fs/partitions/sun.c
@@ -80,8 +80,11 @@ int sun_partition(struct parsed_partitions *state, struct block_device *bdev)
num_sectors = be32_to_cpu(p->num_sectors);
if (num_sectors) {
put_partition(state, slot, st_sector, num_sectors);
+ state->parts[slot].flags = 0;
if (label->infos[i].id == LINUX_RAID_PARTITION)
- state->parts[slot].flags = 1;
+ state->parts[slot].flags |= ADDPART_FLAG_RAID;
+ if (label->infos[i].id == SUN_WHOLE_DISK)
+ state->parts[slot].flags |= ADDPART_FLAG_WHOLEDISK;
}
slot++;
}