bool device_exists(thin_dev_t dev) const {
uint64_t key[1] = {dev};
device_tree::maybe_value v = md_->details_->lookup(key);
return v;
return v.is_initialized();
}
metadata::ptr md_;
thin_pool::device_exists(thin_dev_t dev) const
{
return md_->details_->lookup(key);
return md_->details_->lookup(key).is_initialized();
//----------------------------------------------------------------