Yu, thanks for the patch. I have three minor comments below. Other than that,
the patch looks good to me. If you do not mind, I can do these edits. Please let
me know your thoughts.
1) Let's describe a bit more in the commit title, like,
"tests/dm: add dm test group and a test for self-map"
2) From historical reason, we add executable mode to the test script files.
Let's add the file mode 755 to the tests/dm/001 file.
3) Please run "make check" to find script issues. With the command, shellcheck
reports a warning:
tests/dm/001:23:7: note: Check exit code directly with e.g. 'if mycmd;', not indirectly
with $?. [SC2181]
A hunk below will avoid the warning.
diff --git a/tests/dm/001 b/tests/dm/001
index 09731d8..f69f30f 100644
--- a/tests/dm/001
+++ b/tests/dm/001
@@ -19,8 +19,8 @@ test_device() {
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
+ if dmsetup reload test --table "0 8192 linear /dev/mapper/test 0" \
+ &> /dev/null; then
echo "reload a dm with maps to itself succeed."
fi
dmsetup remove test
