lvm thin pool create can not set chunksize or poolmetadatasize

[HYSong]

In same cases, the size of thin pool metadata is insufficient,
and the initialize of cinder volume LVM Thin Provisioning will create a thin pool
by 'lvcreate -T -L size_str vg_pool_name '.

The param of chunksize is related to thin_pool_chunk_size in lvm.conf if it is config,
and the param of poolmetadatasize is calculate by the formula 'Pool_LV_size / Pool_LV_chunk_size * 64b'.

I think the chunksize can be set in cinder.conf and decouple with lvm.conf, and the value should be set in command
'lvcreate -T -L size_str vg_pool_name' like 'lvcreate -T -L <size_str> --poolmetadatasize <poolmetadatasizestr> --chunsize <chunksize> vg_pool_name '.

And I find that the poolmetadatasize is not calculate by the formula in some compute host if the param not set in the
command 'lvcreate -T -L size_str vg_pool_name '.