const runtime.madviseUnsupported

4 uses

	runtime (current package)
		mem_linux.go#L39: const madviseUnsupported = 0
		mem_linux.go#L50: 	if debug.madvdontneed != 0 && advise != madviseUnsupported {
		mem_linux.go#L66: 		atomic.Store(&adviseUnused, madviseUnsupported)
		mem_linux.go#L68: 	case madviseUnsupported: