func runtime.futexsleep

5 uses

	runtime (current package)
		lock_futex.go#L47: 		futexsleep(key32(&n.key), 0, ns)
		lock_futex.go#L70: 			futexsleep(key32(&n.key), 0, ns)
		lock_futex.go#L89: 		futexsleep(key32(&n.key), 0, ns)
		lock_futex.go#L146: 		futexsleep(&mp.waitsema, v, ns)
		os_linux.go#L68: func futexsleep(addr *uint32, val uint32, ns int64) {