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pools: workaround hints

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Missing code for stacked hint estimation
This commit is contained in:
Zdenek Kabelac 2014-10-26 19:45:17 +01:00
parent c28a7706ed
commit e223c801fc
2 changed files with 20 additions and 10 deletions
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29
lib/metadata/pool_manip.c
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@ -324,16 +324,25 @@ int recalculate_pool_chunk_size_with_dev_hints(struct logical_volume *pool_lv,
pool_data_lv = seg_lv(first_seg(pool_lv), 0);
dm_list_iterate_items(seg, &pool_data_lv->segments) {
pv = seg_pv(seg, 0);
if (chunk_size_calc_policy == THIN_CHUNK_SIZE_CALC_METHOD_PERFORMANCE)
hint = dev_optimal_io_size(cmd->dev_types, pv_dev(pv));
else
hint = dev_minimum_io_size(cmd->dev_types, pv_dev(pv));
if (!hint)
continue;
if (previous_hint)
hint = _lcm(previous_hint, hint);
previous_hint = hint;
switch (seg_type(seg, 0)) {
case AREA_PV:
pv = seg_pv(seg, 0);
if (chunk_size_calc_policy == THIN_CHUNK_SIZE_CALC_METHOD_PERFORMANCE)
hint = dev_optimal_io_size(cmd->dev_types, pv_dev(pv));
else
hint = dev_minimum_io_size(cmd->dev_types, pv_dev(pv));
if (!hint)
continue;
if (previous_hint)
hint = _lcm(previous_hint, hint);
previous_hint = hint;
break;
case AREA_LV:
/* FIXME: hint for stacked (raid) LVs - estimate geometry from LV ?? */
default:
break;
}
}
if (!hint)

1
test/shell/lvconvert-cache-raid.sh
View File

@ -46,6 +46,7 @@ lvremove -f $vg
lvcreate -n cpool_meta -m 1 --type raid1 -l 10 $vg
lvcreate -n cpool -m 1 --type raid1 -l 10 $vg
lvs -a -o+seg_pe_ranges $vg
lvconvert --yes --type cache-pool --poolmetadata $vg/cpool_meta $vg/cpool
lvcreate -n corigin --type cache --cachepool $vg/cpool -l 10