Make inum accessible to BFILE.rep file_match
Make inum accessible to BFILE.rep file_match

Moving towards keeping a map of inum -> list of dirty blocks, which will
require a rep invariant stated in file_match.

mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl,mit-pdos/fscq-impl