Fix resident_count accounting. Resident count would be incremented when mappings are created, but only decremented if the pages had actually been faulted in.
Fix resident_count accounting. Resident count would be incremented when
mappings are created, but only decremented if the pages had actually been
faulted in.

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