From: Hao Xu <[email protected]>
To: Pavel Begunkov <[email protected]>, [email protected]
Cc: Jens Axboe <[email protected]>
Subject: Re: [PATCH] io_uring: avoid iowq again trap
Date: Sun, 15 May 2022 23:07:49 +0800 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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.
prev parent reply other threads:[~2022-05-15 15:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-13 10:24 [PATCH] io_uring: avoid iowq again trap Pavel Begunkov
2022-05-13 12:31 ` Jens Axboe
2022-05-13 12:49 ` Pavel Begunkov
2022-05-13 12:50 ` Jens Axboe
2022-05-13 12:51 ` Jens Axboe
2022-05-15 7:31 ` Hao Xu
2022-05-15 14:21 ` Pavel Begunkov
2022-05-15 15:07 ` Hao Xu [this message]
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