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