aquire vm mutex in swp_pager_async_iodone.  Don't call swp_pager_async_iodone with the mutex held.
aquire vm mutex in swp_pager_async_iodone.  Don't call swp_pager_async_iodone
with the mutex held.

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