    Fixed a potential bug ( but maybe not ), where sendfile() clears PG_BUSY     on a page without testing for waiters.  Also collapsed busy wait into     new vm_page_sleep_busy() inline ( see vm/vm_page.h )
    Fixed a potential bug ( but maybe not ), where sendfile() clears PG_BUSY
    on a page without testing for waiters.  Also collapsed busy wait into
    new vm_page_sleep_busy() inline ( see vm/vm_page.h )

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