simplify uvm_vnp_sync() by removing some simplelock goo. some comment cleanup and a touch of KNF.
simplify uvm_vnp_sync() by removing some simplelock goo.
some comment cleanup and a touch of KNF.

ok art@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars