[LTP] [PATCH v1] security/dirtyc0w_shmem: Add new test for CVE-2022-2590

[David Hildenbrand]

>> +static void cleanup(void)
>> +{
>> +	SAFE_UMOUNT(TMP_DIR);
>> +}
>> +
>> +static struct tst_test test = {
>> +	.needs_checkpoints = 1,
>> +	.forks_child = 1,
>> +	.needs_root = 1,
> 
> We are missing .needs_tmpdir flag here, otherwise the test will create
> the the TMPDIR in PWD which may fail in certain setups.

I just noticed that compilation now says:

testcases/kernel/security/dirtyc0w_shmem/dirtyc0w_shmem.c: useless tag: 
needs_tmpdir

So is "needs_tmpdir" indeed usless or are we missing something else?

-- 
Thanks,

David / dhildenb