Sharpen the saw:

o  EBR uses 32-bit block numbers. Limit the scheme to 2^32-1
   blocks when the media is larger.
o  Calculate the number of entries based on the rounded media
   size, rather than the raw media size.
This commit is contained in:
Marcel Moolenaar 2009-03-30 00:48:42 +00:00
parent 2a1c00ff2f
commit f5f875ed84

View File

@ -237,7 +237,7 @@ g_part_ebr_create(struct g_part_table *basetable, struct g_part_parms *gpp)
char psn[8];
struct g_consumer *cp;
struct g_provider *pp;
uint64_t msize;
uint32_t msize;
int error;
pp = gpp->gpp_provider;
@ -257,10 +257,11 @@ g_part_ebr_create(struct g_part_table *basetable, struct g_part_parms *gpp)
if (strcmp(psn, "MBR"))
return (ENXIO);
msize = pp->mediasize / pp->sectorsize;
basetable->gpt_entries = msize / basetable->gpt_sectors;
msize = MIN(pp->mediasize / pp->sectorsize, 0xffffffff);
msize -= msize % basetable->gpt_sectors;
basetable->gpt_first = 0;
basetable->gpt_last = msize - (msize % basetable->gpt_sectors) - 1;
basetable->gpt_last = msize - 1;
basetable->gpt_entries = msize / basetable->gpt_sectors;
return (0);
}