f6c337c cache_req: improve debugging

4 files Authored by pbrezina 5 years ago, Committed by jhrozek 5 years ago,
    cache_req: improve debugging
    
    Each debug message is matched to a specific request, this way it
    will be easier to follow the request flow especially when paralel
    request are running.
    
    Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
    Reviewed-by: Sumit Bose <sbose@redhat.com>