[PATCH v3] selftests: cgroup: fix test_kmem_basic slab1 check

From: Lucas Karpinski
Date: Thu Aug 03 2023 - 14:26:03 EST


test_kmem_basic creates 100,000 negative dentries, with each one mapping
to a slab object. After memory.high is set, these are reclaimed through
the shrink_slab function call which reclaims all 100,000 entries. The
test passes the majority of the time because when slab1 is calculated,
it is often above 0, however, 0 is also an acceptable value.

Signed-off-by: Lucas Karpinski <lkarpins@xxxxxxxxxx>
---
v3: rebased on mm-unstable

tools/testing/selftests/cgroup/test_kmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/cgroup/test_kmem.c b/tools/testing/selftests/cgroup/test_kmem.c
index 1b2cec9d18a4..67cc0182058d 100644
--- a/tools/testing/selftests/cgroup/test_kmem.c
+++ b/tools/testing/selftests/cgroup/test_kmem.c
@@ -75,7 +75,7 @@ static int test_kmem_basic(const char *root)
sleep(1);

slab1 = cg_read_key_long(cg, "memory.stat", "slab ");
- if (slab1 <= 0)
+ if (slab1 < 0)
goto cleanup;

current = cg_read_long(cg, "memory.current");
--
2.41.0