There is no justification for vm_object_split() setting PG_REFERENCED on a page that it is going to sleep on.  Eliminate it.
There is no justification for vm_object_split() setting PG_REFERENCED on a
page that it is going to sleep on.  Eliminate it.

MFC after:	3 weeks

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