[PATCH] selftests:vm: add include file

[Peng Hao]

userfaultfd.c: In function âhugetlb_release_pagesâ:
userfaultfd.c:145:25: error: âFALLOC_FL_PUNCH_HOLEâ undeclared 
(first use in this function)

Signed-off-by: Peng Hao <peng.hao2@xxxxxxxxxx>
---
 tools/testing/selftests/vm/userfaultfd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index de2f9ec..d8fe447 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -68,6 +68,7 @@
 #include <linux/userfaultfd.h>
 #include <setjmp.h>
 #include <stdbool.h>
+#include <linux/falloc.h>
 
 #ifdef __NR_userfaultfd
 
-- 
1.8.3.1