Author: marcel
Date: Mon Mar 30 00:53:46 2009
New Revision: 190536
URL: http://svn.freebsd.org/changeset/base/190536
Log:
Sharpen the saw:
o MBR uses 32-bit block numbers. Limit the scheme to 2^32-1
blocks when the media is larger.
Modified:
head/sys/geom/part/g_part_mbr.c
Modified: head/sys/geom/part/g_part_mbr.c
==============================================================================
--- head/sys/geom/part/g_part_mbr.c Mon Mar 30 00:48:42 2009
(r190535)
+++ head/sys/geom/part/g_part_mbr.c Mon Mar 30 00:53:46 2009
(r190536)
@@ -230,7 +230,7 @@ g_part_mbr_create(struct g_part_table *b
struct g_consumer *cp;
struct g_provider *pp;
struct g_part_mbr_table *table;
- uint64_t msize;
+ uint32_t msize;
pp = gpp->gpp_provider;
cp = LIST_FIRST(&pp->consumers);
@@ -238,7 +238,7 @@ g_part_mbr_create(struct g_part_table *b
if (pp->sectorsize < MBRSIZE)
return (ENOSPC);
- msize = pp->mediasize / pp->sectorsize;
+ msize = MIN(pp->mediasize / pp->sectorsize, 0xffffffff);
basetable->gpt_first = basetable->gpt_sectors;
basetable->gpt_last = msize - (msize % basetable->gpt_sectors) - 1;
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