update cadvisor, docker, and runc godeps

vendor/github.com/opencontainers/runc/libcontainer/notify_linux.go

@@ -7,7 +7,8 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
-	"syscall"
+
+	"golang.org/x/sys/unix"
 )
 
 const oomCgroupName = "memory"
@@ -25,13 +26,13 @@ func registerMemoryEvent(cgDir string, evName string, arg string) (<-chan struct
 	if err != nil {
 		return nil, err
 	}
-	fd, _, syserr := syscall.RawSyscall(syscall.SYS_EVENTFD2, 0, syscall.FD_CLOEXEC, 0)
-	if syserr != 0 {
+	fd, err := unix.Eventfd(0, unix.EFD_CLOEXEC)
+	if err != nil {
 		evFile.Close()
-		return nil, syserr
+		return nil, err
 	}
 
-	eventfd := os.NewFile(fd, "eventfd")
+	eventfd := os.NewFile(uintptr(fd), "eventfd")
 
 	eventControlPath := filepath.Join(cgDir, "cgroup.event_control")
 	data := fmt.Sprintf("%d %d %s", eventfd.Fd(), evFile.Fd(), arg)
@@ -43,9 +44,9 @@ func registerMemoryEvent(cgDir string, evName string, arg string) (<-chan struct
 	ch := make(chan struct{})
 	go func() {
 		defer func() {
-			close(ch)
 			eventfd.Close()
 			evFile.Close()
+			close(ch)
 		}()
 		buf := make([]byte, 8)
 		for {