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test_sysctl: Add an unregister sysctl test

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Add a test that checks that the unregistered directory is removed from
/proc/sys/debug

Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
This commit is contained in:
Joel Granados 2023-06-16 10:59:18 +02:00 committed by Luis Chamberlain
parent e009bd5efe
commit 3557643859
2 changed files with 46 additions and 0 deletions
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30
lib/test_sysctl.c
View File

@ -170,12 +170,42 @@ static int test_sysctl_setup_node_tests(void)
return 0;
}
/* Used to test that unregister actually removes the directory */
static struct ctl_table test_table_unregister[] = {
{
.procname = "unregister_error",
.data = &test_data.int_0001,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
},
{}
};
static int test_sysctl_run_unregister_nested(void)
{
struct ctl_table_header *unregister;
unregister = register_sysctl("debug/test_sysctl/unregister_error",
test_table_unregister);
if (!unregister)
return -ENOMEM;
unregister_sysctl_table(unregister);
return 0;
}
static int __init test_sysctl_init(void)
{
int err;
err = test_sysctl_setup_node_tests();
if (err)
goto out;
err = test_sysctl_run_unregister_nested();
out:
return err;
}
module_init(test_sysctl_init);

16
tools/testing/selftests/sysctl/sysctl.sh
View File

@ -31,6 +31,7 @@ ALL_TESTS="$ALL_TESTS 0005:3:1:int_0003"
ALL_TESTS="$ALL_TESTS 0006:50:1:bitmap_0001"
ALL_TESTS="$ALL_TESTS 0007:1:1:boot_int"
ALL_TESTS="$ALL_TESTS 0008:1:1:match_int"
ALL_TESTS="$ALL_TESTS 0009:1:1:unregister_error"
function allow_user_defaults()
{
@ -797,6 +798,20 @@ sysctl_test_0008()
return 0
}
sysctl_test_0009()
{
TARGET="${SYSCTL}/$(get_test_target 0009)"
echo -n "Testing if $TARGET unregistered correctly ..."
if [ -d $TARGET ]; then
echo "TEST FAILED"
rc=1
test_rc
fi
echo "ok"
return 0
}
list_tests()
{
echo "Test ID list:"
@ -813,6 +828,7 @@ list_tests()
echo "0006 x $(get_test_count 0006) - tests proc_do_large_bitmap()"
echo "0007 x $(get_test_count 0007) - tests setting sysctl from kernel boot param"
echo "0008 x $(get_test_count 0008) - tests sysctl macro values match"
echo "0009 x $(get_test_count 0009) - tests sysct unregister"
}
usage()