Revert "Remove skipped blocks reuse mechanism"

This reverts commit dbb57f3f8e3bc895ddc0dd1cd80cfa16bb1283db.

Reason for revert: Seems to cause 004-ThreadStress failure?

Change-Id: I4b40084c82d90cf8b7578f8aa681fba0d7756e1e
2 files changed