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Allow gpe_offset to be set by the scheme. When gpe_offset is zero,

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or invalid, initialize it to the start of the partition. Adjust
the mediasize when the offset lies somewhere inside the partition.
This commit is contained in:
marcel 2009-02-08 23:39:30 +00:00
parent 719ba982f2
commit fdc13c7097
1 changed files with 7 additions and 2 deletions
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9
sys/geom/part/g_part.c
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@ -244,7 +244,8 @@ g_part_new_entry(struct g_part_table *table, int index, quad_t start,
LIST_INSERT_HEAD(&table->gpt_entry, entry, gpe_entry); LIST_INSERT_HEAD(&table->gpt_entry, entry, gpe_entry);
else else
LIST_INSERT_AFTER(last, entry, gpe_entry); LIST_INSERT_AFTER(last, entry, gpe_entry);
} } else
entry->gpe_offset = 0;
entry->gpe_start = start; entry->gpe_start = start;
entry->gpe_end = end; entry->gpe_end = end;
return (entry); return (entry);
@ -257,11 +258,14 @@ g_part_new_provider(struct g_geom *gp, struct g_part_table *table,
char buf[32]; char buf[32];
struct g_consumer *cp; struct g_consumer *cp;
struct g_provider *pp; struct g_provider *pp;
off_t offset;
cp = LIST_FIRST(&gp->consumer); cp = LIST_FIRST(&gp->consumer);
pp = cp->provider; pp = cp->provider;
entry->gpe_offset = entry->gpe_start * pp->sectorsize; offset = entry->gpe_start * pp->sectorsize;
if (entry->gpe_offset < offset)
entry->gpe_offset = offset;
if (entry->gpe_pp == NULL) { if (entry->gpe_pp == NULL) {
entry->gpe_pp = g_new_providerf(gp, "%s%s", gp->name, entry->gpe_pp = g_new_providerf(gp, "%s%s", gp->name,
@ -271,6 +275,7 @@ g_part_new_provider(struct g_geom *gp, struct g_part_table *table,
entry->gpe_pp->index = entry->gpe_index - 1; /* index is 1-based. */ entry->gpe_pp->index = entry->gpe_index - 1; /* index is 1-based. */
entry->gpe_pp->mediasize = (entry->gpe_end - entry->gpe_start + 1) * entry->gpe_pp->mediasize = (entry->gpe_end - entry->gpe_start + 1) *
pp->sectorsize; pp->sectorsize;
entry->gpe_pp->mediasize -= entry->gpe_offset - offset;
entry->gpe_pp->sectorsize = pp->sectorsize; entry->gpe_pp->sectorsize = pp->sectorsize;
entry->gpe_pp->flags = pp->flags & G_PF_CANDELETE; entry->gpe_pp->flags = pp->flags & G_PF_CANDELETE;
if (pp->stripesize > 0) { if (pp->stripesize > 0) {