diff --git a/vendor/src/golang.org/x/sys/unix/ztypes_linux_arm.go b/vendor/src/golang.org/x/sys/unix/ztypes_linux_arm.go
index 817ac9c29..66f8d1175 100644
--- a/vendor/src/golang.org/x/sys/unix/ztypes_linux_arm.go
+++ b/vendor/src/golang.org/x/sys/unix/ztypes_linux_arm.go
@@ -145,6 +145,15 @@ type Fsid struct {
 	X__val [2]int32
 }
 
+const (
+	FADV_NORMAL     = 0x0
+	FADV_RANDOM     = 0x1
+	FADV_SEQUENTIAL = 0x2
+	FADV_WILLNEED   = 0x3
+	FADV_DONTNEED   = 0x4
+	FADV_NOREUSE    = 0x5
+)
+
 type Flock_t struct {
 	Type      int16
 	Whence    int16