[PATCH v2] selftests: openat2: Fix testing failure for O_LARGEFILE flag

[Baolin Wang]

When running the openat2 test suite on ARM64 platform, we got below failure,
since the definition of the O_LARGEFILE is different on ARM64. So we can
set the correct O_LARGEFILE definition on ARM64 to fix this issue.

"openat2 unexpectedly returned # 3['.../tools/testing/selftests/openat2']
with 208000 (!= 208000)
not ok 102 openat2 with incompatible flags (O_PATH | O_LARGEFILE) fails
with -22 (Invalid argument)"

Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Reviewed-by: Aleksa Sarai <cyphar@xxxxxxxxxx>
Acked-by: Christian Brauner <christian.brauner@xxxxxxxxxx>
---
Changes from v1:
 - Add reviewed and acked tags from Aleksa and Christian.
 - Add failure logs in the commit log.
---
 tools/testing/selftests/openat2/openat2_test.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c
index d7ec1e7..1bddbe9 100644
--- a/tools/testing/selftests/openat2/openat2_test.c
+++ b/tools/testing/selftests/openat2/openat2_test.c
@@ -22,7 +22,11 @@
  * XXX: This is wrong on {mips, parisc, powerpc, sparc}.
  */
 #undef	O_LARGEFILE
+#ifdef __aarch64__
+#define	O_LARGEFILE 0x20000
+#else
 #define	O_LARGEFILE 0x8000
+#endif
 
 struct open_how_ext {
 	struct open_how inner;
-- 
1.8.3.1