From: Yu Kuai <yuku...@huawei.com>
Verify that reload a dm with maps to itself will fail.
Signed-off-by: Yu Kuai <yuku...@huawei.com>
---
tests/dm/001 | 29 +++++++++++++++++++++++++++++
tests/dm/001.out | 2 ++
tests/dm/rc | 13 +++++++++++++
3 files changed, 44 insertions(+)
create mode 100644 tests/dm/001
create mode 100644 tests/dm/001.out
create mode 100644 tests/dm/rc
diff --git a/tests/dm/001 b/tests/dm/001
new file mode 100644
index 0000000..6deab1f
--- /dev/null
+++ b/tests/dm/001
@@ -0,0 +1,29 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2023 Yu Kuai
+#
+# Regression test for commit 077a4033541f ("block: don't allow a disk link
+# holder to itself")
+
+. tests/dm/rc
+
+DESCRIPTION="reload a dm with maps to itself"
+QUICK=1
+
+requires() {
+ _have_kver 6 2
+}
+
+test_device() {
+ echo "Running ${TEST_NAME}"
+
+ dmsetup create test --table "0 8192 linear ${TEST_DEV} 0"
+ dmsetup suspend test
+ dmsetup reload test --table "0 8192 linear /dev/mapper/test 0" &>
/dev/null
+ if [ $? -eq 0 ]; then
+ echo "reload a dm with maps to itself succeed."
+ fi
+ dmsetup remove test
+
+ echo "Test complete"
+}
diff --git a/tests/dm/001.out b/tests/dm/001.out
new file mode 100644
index 0000000..4bd2c08
--- /dev/null
+++ b/tests/dm/001.out
@@ -0,0 +1,2 @@
+Running dm/001
+Test complete
diff --git a/tests/dm/rc b/tests/dm/rc
new file mode 100644
index 0000000..0486db0
--- /dev/null
+++ b/tests/dm/rc
@@ -0,0 +1,13 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2023 Yu Kuai
+#
+# Tests for device-mapper
+
+. common/rc
+
+group_requires() {
+ _have_root
+ _have_program dmsetup
+ _have_driver dm-mod
+}
--
2.39.2
--
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