linux-kernel - Re: [PATCH v3 0/4] fast poll multishot mode

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Message-ID: <0b52bbd2-56de-c213-df3f-73f0f83a1f3a@gmail.com>
Date:   Sun, 8 May 2022 01:21:13 +0800
From:   Hao Xu <haoxu.linux@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, io-uring@...r.kernel.org
Cc:     Pavel Begunkov <asml.silence@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/4] fast poll multishot mode

在 2022/5/8 上午12:11, Jens Axboe 写道:
> On 5/7/22 10:05 AM, Hao Xu wrote:
>>> But we still need to consider direct accept with multishot... Should
>>> probably be an add-on patch as I think it'd get a bit more complicated
>>> if we need to be able to cheaply find an available free fixed fd slot.
>>> I'll try and play with that.
>>
>> I'm tending to use a new mail account to send v4 rather than the gmail
>> account since the git issue seems to be network related.
>> I'll also think about the fixed fd problem.
> 
> Two basic attached patches that attempt do just alloc a fixed file
> descriptor for this case. Not tested at all... We return the fixed file
> slot in this case since we have to, to let the application know what was
> picked. I kind of wish we'd done that with direct open/accept to begin
> with anyway, a bit annoying that fixed vs normal open/accept behave
> differently.
> 
> Anyway, something to play with, and I'm sure it can be made better.
> 
Thanks. I tried to fix the mail account issue, still unclear what is
wrong, and too late at my timezone now, I'll try to send v4 tomorrow