[PATCH v2 2/3] selftests: fix the zswap invasive shrink test

[Nhat Pham]

The zswap no invasive shrink selftest breaks because we rename the zswap
writeback counter (see [1]). Fix the test.

[1]: https://patchwork.kernel.org/project/linux-kselftest/patch/20231205193307.2432803-1-nphamcs@xxxxxxxxx/

Fixes: a697dc2be925 ("selftests: cgroup: update per-memcg zswap writeback selftest")
Signed-off-by: Nhat Pham <nphamcs@xxxxxxxxx>
Acked-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
---
 tools/testing/selftests/cgroup/test_zswap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/cgroup/test_zswap.c b/tools/testing/selftests/cgroup/test_zswap.c
index 47fdaa146443..32ce975b21d1 100644
--- a/tools/testing/selftests/cgroup/test_zswap.c
+++ b/tools/testing/selftests/cgroup/test_zswap.c
@@ -52,7 +52,7 @@ static int get_zswap_stored_pages(size_t *value)
 
 static int get_cg_wb_count(const char *cg)
 {
-	return cg_read_key_long(cg, "memory.stat", "zswp_wb");
+	return cg_read_key_long(cg, "memory.stat", "zswpwb");
 }
 
 static long get_zswpout(const char *cgroup)
-- 
2.39.3