[PATCH] sun disk label: fix signed int usage for sector count

From: Jeff Mahoney
Date: Fri Aug 25 2006 - 12:02:22 EST


The current sun disklabel code uses a signed int for the sector count. When
partitions larger than 1 TB are used, the cast to a sector_t causes the
partition sizes to be invalid:

# cat /proc/paritions | grep sdan
66 112 2146435072 sdan
66 115 9223372036853660736 sdan3
66 120 9223372036853660736 sdan8

This patch switches the sector count to an unsigned int to fix this.

Signed-off-by: Jeff Mahoney <jeffm@xxxxxxxx>

--- linux-2.6.5/fs/partitions/sun.c 2004-04-03 22:38:14.000000000 -0500
+++ linux-2.6.5.fix/fs/partitions/sun.c 2006-08-25 11:54:23.000000000 -0400
@@ -73,7 +73,7 @@
spc = be16_to_cpu(label->ntrks) * be16_to_cpu(label->nsect);
for (i = 0; i < 8; i++, p++) {
unsigned long st_sector;
- int num_sectors;
+ unsigned int num_sectors;

st_sector = be32_to_cpu(p->start_cylinder) * spc;
num_sectors = be32_to_cpu(p->num_sectors);

--
Jeff Mahoney
SUSE Labs
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/