From 01d434ce98d38e36901c72493b96afc4075ee887 Mon Sep 17 00:00:00 2001 From: Stanislav Fomichev Date: Mon, 2 Dec 2019 12:01:43 -0800 Subject: [PATCH] selftests/bpf: Don't hard-code root cgroup id Commit 40430452fd5d ("kernfs: use 64bit inos if ino_t is 64bit") changed the way cgroup ids are exposed to the userspace. Instead of assuming fixed root id, let's query it. Fixes: 40430452fd5d ("kernfs: use 64bit inos if ino_t is 64bit") Signed-off-by: Stanislav Fomichev Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20191202200143.250793-1-sdf@google.com --- tools/testing/selftests/bpf/test_skb_cgroup_id_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/test_skb_cgroup_id_user.c b/tools/testing/selftests/bpf/test_skb_cgroup_id_user.c index 9220747..356351c 100644 --- a/tools/testing/selftests/bpf/test_skb_cgroup_id_user.c +++ b/tools/testing/selftests/bpf/test_skb_cgroup_id_user.c @@ -120,7 +120,7 @@ int check_ancestor_cgroup_ids(int prog_id) int err = 0; int map_fd; - expected_ids[0] = 0x100000001; /* root cgroup */ + expected_ids[0] = get_cgroup_id("/.."); /* root cgroup */ expected_ids[1] = get_cgroup_id(""); expected_ids[2] = get_cgroup_id(CGROUP_PATH); expected_ids[3] = 0; /* non-existent cgroup */ -- 2.7.4