Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.15 076/189] selftests/bpf: fix test_dev_cgroup
Thread-Topic: [PATCH AUTOSEL for 4.15 076/189] selftests/bpf: fix
 test_dev_cgroup
Thread-Index: AQHTz5guhiGpA8wpR0iaHl2RDRsY+g==
Date:   Mon, 9 Apr 2018 00:17:44 +0000
Message-ID: <20180409001637.162453-76-alexander.levin@microsoft.com>
References: <20180409001637.162453-1-alexander.levin@microsoft.com>
In-Reply-To: <20180409001637.162453-1-alexander.levin@microsoft.com>
Accept-Language: en-US
Content-Language: en-US
received-spf: None (protection.outlook.com: microsoft.com does not designate
 permitted sender hosts)
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 1eeca884-b364-4d3c-dad0-08d59daf6fb4
X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:17:44.9300
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1128
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Alexei Starovoitov <ast@kernel.org>

[ Upstream commit 8e6875250a1189e0d8db8b05e18abe63c2744521 ]

The test incorrectly doing
mkdir /mnt/cgroup-test-work-dirtest-bpf-based-device-cgroup
instead of
mkdir /mnt/cgroup-test-work-dir/test-bpf-based-device-cgroup

somehow such mkdir succeeds and new directory appears:
/mnt/cgroup-test-work-dir/cgroup-test-work-dirtest-bpf-based-device-cgroup

Later cleanup via nftw("/mnt/cgroup-test-work-dir", ...);
doesn't walk this directory.
"rmdir /mnt/cgroup-test-work-dir" succeeds, but bpf program and
dangling cgroup stays in memory.
That's a separate issue on a cgroup side.
For now fix the test.

Fixes: 37f1ba0909df ("selftests/bpf: add a test for device cgroup controlle=
r")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 tools/testing/selftests/bpf/test_dev_cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/test_dev_cgroup.c b/tools/testing/=
selftests/bpf/test_dev_cgroup.c
index 02c85d6c89b0..070bc3c9a873 100644
--- a/tools/testing/selftests/bpf/test_dev_cgroup.c
+++ b/tools/testing/selftests/bpf/test_dev_cgroup.c
@@ -19,7 +19,7 @@
=20
 #define DEV_CGROUP_PROG "./dev_cgroup.o"
=20
-#define TEST_CGROUP "test-bpf-based-device-cgroup/"
+#define TEST_CGROUP "/test-bpf-based-device-cgroup/"
=20
 int main(int argc, char **argv)
 {
--=20
2.15.1