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Date:   Sun, 15 May 2022 23:07:49 +0800
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Subject: Re: [PATCH] io_uring: avoid iowq again trap
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To:     Pavel Begunkov <asml.silence@gmail.com>, io-uring@vger.kernel.org
Cc:     Jens Axboe <axboe@kernel.dk>
References: <f168b4f24181942f3614dd8ff648221736f572e6.1652433740.git.asml.silence@gmail.com>
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From:   Hao Xu <haoxu.linux@icloud.com>
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On 5/15/22 22:21, Pavel Begunkov wrote:
> On 5/15/22 08:31, Hao Xu wrote:
>> On 5/13/22 18:24, Pavel Begunkov wrote:
>>> If an opcode handler semi-reliably returns -EAGAIN, io_wq_submit_work()
>>
>> Hi Pavel,
>> When would it return -EAGAIN in non-IOPOLL mode?
> 
> I didn't see it in the wild but stumbled upon while preparing some
> future patches. I hope it's not a real issue, but it's better to not
> leave a way for some driver/etc. to abuse it.
> 
> 
Gotcha, thanks.