    Add invariants to vm_page_busy() and vm_page_wakeup() to check for     PG_BUSY stupidity.
    Add invariants to vm_page_busy() and vm_page_wakeup() to check for
    PG_BUSY stupidity.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase