[LTP] [PATCH] vma01: check kernel version

[Wanlong G. <gao...@cn...>]

This is just a kernel behaviour change to avoid the possible
scalability issue, not a real kernel bug. So, check the kernel
version.

Signed-off-by: Wanlong Gao <gao...@cn...>
---
 testcases/kernel/mem/vma/vma01.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/mem/vma/vma01.c b/testcases/kernel/mem/vma/vma01.c
index 7cd22c0..c6cb1f5 100644
--- a/testcases/kernel/mem/vma/vma01.c
+++ b/testcases/kernel/mem/vma/vma01.c
@@ -192,7 +192,13 @@ static void check_status(int status)
 		tst_resm(TPASS, "two 3*ps VMAs found.");
 		break;
 	case 1:
-		tst_resm(TFAIL, "A single 6*ps VMA found.");
+		if (tst_kvercmp(3, 0, 0) < 0) {
+			tst_resm(TCONF, "A single 6*ps VMA found. You may need"
+					" to back port kernel commit 965f55d "
+					"to fix this scalability issue.");
+		} else {
+			tst_resm(TFAIL, "A single 6*ps VMA found.");
+		}
 		break;
 	default:
 		tst_brkm(TBROK, cleanup, "unexpected VMA found.");
-- 
1.8.3.2.634.g7a3187e