func golang.org/x/sys/unix.IoctlLoopGetStatus64

one use

	golang.org/x/sys/unix (current package)
		ioctl_linux.go#L221: func IoctlLoopGetStatus64(fd int) (*LoopInfo64, error) {

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)