1 files changed, 10 insertions, 0 deletions

diff --git a/arch/um/include/sysdep-x86_64/thread.h b/arch/um/include/sysdep-x86_64/thread.h
new file mode 100644
index 00000000000..6a76a7f3683
--- /dev/null
+++ b/arch/um/include/sysdep-x86_64/thread.h
@@ -0,0 +1,10 @@
+#ifndef __UM_THREAD_H
+#define __UM_THREAD_H
+
+#include <kern_constants.h>
+
+#ifdef CONFIG_MODE_TT
+#define TASK_EXTERN_PID(task) *((int *) &(((char *) (task))[HOST_TASK_EXTERN_PID]))
+#endif
+
+#endif