[PATCH 4/9] selftests/mm: mremap_test: correct multiple VMA range size

[Sarthak Sharma]

In the test mremap_move_multiple_vmas(), pages 4
to 6 form a single VMA. But the helper function
is_multiple_vma_range_ok() checks pages 4 and 5 as
one range and treats page 6 separately.

Check all three pages as a single range and skip
the page 6 iteration to match the actual VMA layout.

Fixes: d53f248258e1 ("tools/testing/selftests: extend mremap_test to test multi-VMA mremap")
Signed-off-by: Sarthak Sharma <sarthak.sharma@xxxxxxx>
---
 tools/testing/selftests/mm/mremap_test.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/mremap_test.c b/tools/testing/selftests/mm/mremap_test.c
index ba9b7f7566d0..869df22d46db 100644
--- a/tools/testing/selftests/mm/mremap_test.c
+++ b/tools/testing/selftests/mm/mremap_test.c
@@ -373,7 +373,10 @@ static bool is_multiple_vma_range_ok(unsigned int pattern_seed,
 	for (i = 0; i <= 10; i += 2) {
 		int j;
 		char *buf = &ptr[i * page_size];
-		size_t size = i == 4 ? 2 * page_size : page_size;
+		size_t size = i == 4 ? 3 * page_size : page_size;
+
+		if (i == 6)
+			continue;
 
 		for (j = 0; j < size; j++) {
 			char chr = rand();
-- 
2.53.0