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
