patch-2.4.20 linux-2.4.20/fs/partitions/sun.c
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- Lines: 70
- Date:
Thu Nov 28 15:53:15 2002
- Orig file:
linux-2.4.19/fs/partitions/sun.c
- Orig date:
Mon Oct 1 20:03:26 2001
diff -urN linux-2.4.19/fs/partitions/sun.c linux-2.4.20/fs/partitions/sun.c
@@ -7,6 +7,7 @@
* Re-organised Feb 1998 Russell King
*/
+#include <linux/config.h>
#include <linux/fs.h>
#include <linux/genhd.h>
#include <linux/kernel.h>
@@ -19,6 +20,10 @@
#include "check.h"
#include "sun.h"
+#ifdef CONFIG_BLK_DEV_MD
+extern void md_autodetect_dev(kdev_t dev);
+#endif
+
int sun_partition(struct gendisk *hd, struct block_device *bdev, unsigned long first_sector, int first_part_minor)
{
int i, csum;
@@ -27,7 +32,14 @@
kdev_t dev = to_kdev_t(bdev->bd_dev);
struct sun_disklabel {
unsigned char info[128]; /* Informative text string */
- unsigned char spare[292]; /* Boot information etc. */
+ unsigned char spare0[14];
+ struct sun_info {
+ unsigned char spare1;
+ unsigned char id;
+ unsigned char spare2;
+ unsigned char flags;
+ } infos[8];
+ unsigned char spare[246]; /* Boot information etc. */
unsigned short rspeed; /* Disk rotational speed */
unsigned short pcylcount; /* Physical cylinder count */
unsigned short sparecyl; /* extra sects per cylinder */
@@ -63,22 +75,30 @@
ush = ((unsigned short *) (label+1)) - 1;
for (csum = 0; ush >= ((unsigned short *) label);)
csum ^= *ush--;
- if(csum) {
+ if (csum) {
printk("Dev %s Sun disklabel: Csum bad, label corrupted\n",
bdevname(dev));
put_dev_sector(sect);
return 0;
}
+
/* All Sun disks have 8 partition entries */
spc = be16_to_cpu(label->ntrks) * be16_to_cpu(label->nsect);
- for(i=0; i < 8; i++, p++) {
+ for (i = 0; i < 8; i++, p++) {
unsigned long st_sector;
int num_sectors;
st_sector = first_sector + be32_to_cpu(p->start_cylinder) * spc;
num_sectors = be32_to_cpu(p->num_sectors);
- if (num_sectors)
- add_gd_partition(hd, first_part_minor, st_sector, num_sectors);
+ if (num_sectors) {
+ add_gd_partition(hd, first_part_minor,
+ st_sector, num_sectors);
+#ifdef CONFIG_BLK_DEV_MD
+ if (label->infos[i].id == LINUX_RAID_PARTITION)
+ md_autodetect_dev(MKDEV(hd->major,
+ first_part_minor));
+#endif
+ }
first_part_minor++;
}
printk("\n");
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