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Fixes for allocation of striped volumes.

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This commit is contained in:
Alasdair Kergon
2001-12-07 21:17:12 +00:00
parent b6af4a0aab
commit b74c8033a2
6 changed files with 88 additions and 39 deletions
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63
lib/format1/import-extents.c
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@@ -238,30 +238,55 @@ static int _read_linear(struct pool *mem, struct lv_map *lvm)
static int _read_stripes(struct pool *mem, struct lv_map *lvm)
{
uint32_t stripes = lvm->stripes, s;
uint32_t stripe_len = lvm->lv->le_count / stripes;
uint32_t stripes = lvm->stripes, s, le = 0, pe;
struct stripe_segment *seg;
struct pe_specifier *pes;
if (!(seg = _alloc_seg(mem, stripes))) {
stack;
return 0;
while (le < lvm->lv->le_count) {
if (!(seg = _alloc_seg(mem, stripes))) {
stack;
return 0;
}
seg->lv = lvm->lv;
seg->le = le;
seg->len = 0;
seg->stripe_size = lvm->stripe_size;
seg->stripes = stripes;
seg->area[0].pv = lvm->map[le].pv;
seg->area[0].pe = lvm->map[le].pe;
do
seg->len++;
while ((lvm->map[le + seg->len].pv == seg->area[0].pv) &&
(lvm->map[le + seg->len].pe == seg->area[0].pe +
seg->len));
for (s = 1; s < stripes; s++) {
pes = &lvm->map[le + s * seg->len];
seg->area[s].pv = pes->pv;
seg->area[s].pe = pes->pe;
for (pe = 0; pe < seg->len; pe++) {
if (lvm->map[le + s * seg->len + pe].pe !=
pes->pe + pe) {
log_error("Incompatible striping at LE"
" %d on %s",
le + s * seg->len + pe,
seg->lv->name);
return 0;
}
}
}
seg->len *= stripes;
le += seg->len;
list_add(&lvm->lv->segments, &seg->list);
}
seg->lv = lvm->lv;
seg->le = 0;
seg->len = lvm->lv->le_count;
seg->stripe_size = lvm->stripe_size;
seg->stripes = stripes;
for (s = 0; s < stripes; s++) {
pes = &lvm->map[s * stripe_len];
seg->area[s].pv = pes->pv;
seg->area[s].pe = pes->pe;
}
list_add(&lvm->lv->segments, &seg->list);
return 1;
}