Re: [PATCH v3] block/loop: Serialize ioctl operations.

[Tetsuo Handa]

Jens, did you come up with a better alternative?
We have another bug which is causing many hung task reports.
I do want to make progress rather than stall for another three month.

On 2018/07/11 23:29, Tetsuo Handa wrote:
> Since syzbot restarted testing linux-next.git , it is a good chance
> to test this patch for unexpected regressions (until you come up with
> a good alternative).
> 
> On 2018/06/26 23:34, Tetsuo Handa wrote:
>> Did you get any idea?
>>
>> On 2018/06/05 3:13, Jens Axboe wrote:
>>> On 6/4/18 5:19 AM, Tetsuo Handa wrote:
>>>> This problem was already ignored for 8 months. Unless we boost priority,
>>>> this problem will be ignored for years. Jens, can we test this patch?
>>>
>>> Sorry, it's just that I _really_ hate this patch. We're making up
>>> a weird locking primitive that tracks the process, with a weird
>>> unlock helper that only unlocks if it's the process that is
>>> holding the mutex.
>>>
>>> I'll try and think about this a bit, it would be nice if we had
>>> a better alternative than the above.
>>>