#endif
#ifndef CIFS_MAGIC_NUMBER
-#define CIFS_MAGIC_NUMBER 0xFF534D42
+# define CIFS_MAGIC_NUMBER 0xFF534D42
#endif
#ifndef TFD_TIMER_CANCEL_ON_SET
-#define TFD_TIMER_CANCEL_ON_SET (1 << 1)
+# define TFD_TIMER_CANCEL_ON_SET (1 << 1)
#endif
#ifndef SO_REUSEPORT
-#define SO_REUSEPORT 15
+# define SO_REUSEPORT 15
#endif
#ifndef EVIOCREVOKE
-#define EVIOCREVOKE _IOW('E', 0x91, int)
+# define EVIOCREVOKE _IOW('E', 0x91, int)
#endif
#ifndef DRM_IOCTL_SET_MASTER
-#define DRM_IOCTL_SET_MASTER _IO('d', 0x1e)
+# define DRM_IOCTL_SET_MASTER _IO('d', 0x1e)
#endif
#ifndef DRM_IOCTL_DROP_MASTER
-#define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f)
+# define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f)
+#endif
+
+#if defined(__i386__) || defined(__x86_64__)
+
+/* The precise definition of __O_TMPFILE is arch specific, so let's
+ * just define this on x86 where we know the value. */
+
+#ifndef __O_TMPFILE
+#define __O_TMPFILE 020000000
+#endif
+
+/* a horrid kludge trying to make sure that this will fail on old kernels */
+#ifndef O_TMPFILE
+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
+#endif
+
#endif