old_prot         2206 uvm/uvm_map.c  		vm_prot_t old_prot;
old_prot         2210 uvm/uvm_map.c  		old_prot = current->protection;
old_prot         2213 uvm/uvm_map.c  			    (current->max_protection = new_prot) & old_prot;
old_prot         2222 uvm/uvm_map.c  		if (current->protection != old_prot) {
old_prot         2239 uvm/uvm_map.c  		    old_prot == VM_PROT_NONE &&