simply swapping deactivated block with last block inuse while backwarding high index but not destroying deactivated block.
problem 1. Backwarding high index cant directly deducted from block inuse skiplist as deactived still alive in it and is the last one after swapping.
simply swapping deactivated block with last block inuse while backwarding high index but not destroying deactivated block. problem 1. Backwarding high index cant directly deducted from block inuse skiplist as deactived still alive in it and is the last one after swapping.