* Re-organised Feb 1998 Russell King
*/
-#include <linux/config.h>
#include "check.h"
#include "msdos.h"
#include <asm/unaligned.h>
#define SYS_IND(p) (get_unaligned(&p->sys_ind))
-#define NR_SECTS(p) ({ __typeof__(p->nr_sects) __a = \
- get_unaligned(&p->nr_sects); \
+#define NR_SECTS(p) ({ __le32 __a = get_unaligned(&p->nr_sects); \
le32_to_cpu(__a); \
})
-#define START_SECT(p) ({ __typeof__(p->start_sect) __a = \
- get_unaligned(&p->start_sect); \
+#define START_SECT(p) ({ __le32 __a = get_unaligned(&p->start_sect); \
le32_to_cpu(__a); \
})
return (p[0] == MSDOS_LABEL_MAGIC1 && p[1] == MSDOS_LABEL_MAGIC2);
}
+/* Value is EBCDIC 'IBMA' */
+#define AIX_LABEL_MAGIC1 0xC9
+#define AIX_LABEL_MAGIC2 0xC2
+#define AIX_LABEL_MAGIC3 0xD4
+#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 slot, ret = 0;
+
+ 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')
+ ret = 1;
+ put_dev_sector(sect);
+ };
+ return ret;
+}
+
/*
* Create devices for each logical partition in an extended partition.
* The logical partitions form a linked list, with each entry being
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;
return 0;
}
+ if (aix_magic_present(data, bdev)) {
+ put_dev_sector(sect);
+ printk( " [AIX]");
+ return 0;
+ }
+
/*
* Now that the 55aa signature is present, this is probably
* either the boot sector of a FAT filesystem or a DOS-type