TRACE("m0", "nbd_free(): block %p scale %llu", b, h->scale);
if (h->owner == tid_) {
TRACE("m0", "nbd_free(): private block, free list head %p",
TRACE("m0", "nbd_free(): block %p scale %llu", b, h->scale);
if (h->owner == tid_) {
TRACE("m0", "nbd_free(): private block, free list head %p",