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-rw-r--r--tools/testing/selftests/cgroup/test_kmem.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/cgroup/test_kmem.c b/tools/testing/selftests/cgroup/test_kmem.c
index 258ddc565deb..1b2cec9d18a4 100644
--- a/tools/testing/selftests/cgroup/test_kmem.c
+++ b/tools/testing/selftests/cgroup/test_kmem.c
@@ -70,6 +70,10 @@ static int test_kmem_basic(const char *root)
goto cleanup;
cg_write(cg, "memory.high", "1M");
+
+ /* wait for RCU freeing */
+ sleep(1);
+
slab1 = cg_read_key_long(cg, "memory.stat", "slab ");
if (slab1 <= 0)
goto cleanup;