[LTP] [PATCH] syscalls/swapon02: Do not fail on overlayfs

[Murphy Zhou]

Currently swapfiles on Overlayfs are not supported.

So if we are on overlayfs and we get EINVAL from swapon() we return TCONF.

Signed-off-by: Murphy Zhou <xzhou@redhat.com>
---
 testcases/kernel/syscalls/swapon/swapon02.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/testcases/kernel/syscalls/swapon/swapon02.c b/testcases/kernel/syscalls/swapon/swapon02.c
index 4af5105c6..211cdfc4e 100644
--- a/testcases/kernel/syscalls/swapon/swapon02.c
+++ b/testcases/kernel/syscalls/swapon/swapon02.c
@@ -86,6 +86,11 @@ static void verify_swapon(struct test_case_t *test)
 			return;
 	}
 
+	if (fs_type == TST_OVERLAYFS_MAGIC && errno == EINVAL) {
+		tst_resm(TCONF, "Swapfile on overlayfs not implemeted");
+			return;
+	}
+
 	tst_resm(TFAIL, "swapon(2) failed to produce expected error:"
 	         " %d, errno: %s and got %d.", test->exp_errno,
 	         test->exp_errval, TEST_ERRNO);
-- 
2.21.0