selftests: fix the zswap invasive shrink test

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[email protected]/

Link: https://lkml.kernel.org/r/[email protected]
Fixes: a697dc2be925 ("selftests: cgroup: update per-memcg zswap writeback selftest")
Signed-off-by: Nhat Pham <[email protected]>
Acked-by: Yosry Ahmed <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Rik van Riel <[email protected]>
Cc: Roman Gushchin <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Zefan Li <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

diff --git a/tools/testing/selftests/cgroup/test_zswap.c b/tools/testing/selftests/cgroup/test_zswap.c
index 47fdaa146443001491dc0ec9b56cf5e0677b49e6..32ce975b21d1f535db9d179a29e078344b21553f 100644 (file)
--- 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)