>From c9df1957cd87e195fe0939fbea98b4415d3d28f8 Mon Sep 17 00:00:00 2001
From: Szabolcs Nagy <nsz@port70.net>
Date: Mon, 12 Aug 2019 17:57:42 +0000
Subject: [PATCH 2/6] sched.h: add CLONE_PIDFD from linux v5.2

when set a pidfd is stored in parent_tidptr, see

  linux commit b3e5838252665ee4cfa76b82bdf1198dca81e5be
  clone: add CLONE_PIDFD
---
 include/sched.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/sched.h b/include/sched.h
index 674bad7f..7e470d3a 100644
--- a/include/sched.h
+++ b/include/sched.h
@@ -49,6 +49,7 @@ int     sched_yield(void);
 #define CLONE_FS	0x00000200
 #define CLONE_FILES	0x00000400
 #define CLONE_SIGHAND	0x00000800
+#define CLONE_PIDFD	0x00001000
 #define CLONE_PTRACE	0x00002000
 #define CLONE_VFORK	0x00004000
 #define CLONE_PARENT	0x00008000
-- 
2.21.0