On 15/11/2019 00:25, Jens Axboe wrote:
> On 11/14/19 2:20 PM, Pavel Begunkov wrote:
>> If IORING_OP_LINK_TIMEOUT request is a head of a link or an individual
>> request, pass it further through the submission path, where it will
>> eventually fail in __io_submit_sqe(). So respecting links and drains.
>>
>> The case, which is really need to be checked, is if a
>> IORING_OP_LINK_TIMEOUT request is 3rd or later in a link, that is
>> invalid from the user API perspective (judging by the code). Moreover,
>> put/free and friends will try to io_link_cancel_timeout() such request,
>> even though it wasn't initialised.
> 
> Care to add a test case for these to liburings test/link-timeout.c?
> 
I'll add it a bit later

-- 
Pavel Begunkov