From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>, io-uring@vger.kernel.org
Cc: "Franz-B . Tuneke" <franz-bernhard.tuneke@tu-dortmund.de>
Subject: Re: [PATCH v2 5.15] io_uring: auto-removal for direct open/accept
Date: Tue, 14 Sep 2021 16:21:54 +0100 [thread overview]
Message-ID: <5fddec32-ae75-aca9-1b67-78c91f789b74@gmail.com> (raw)
In-Reply-To: <de129f22-1a44-8ddf-ec42-fa6fba85d7fe@kernel.dk>
On 9/14/21 4:14 PM, Jens Axboe wrote:
> On 9/14/21 9:12 AM, Pavel Begunkov wrote:
>> It might be inconvenient that direct open/accept deviates from the
>> update semantics and fails if the slot is taken instead of removing a
>> file sitting there. Implement this auto-removal.
>>
>> Note that removal might need to allocate and so may fail. However, if an
>> empty slot is specified, it's guaraneed to not fail on the fd
>> installation side for valid userspace programs. It's needed for users
>> who can't tolerate such failures, e.g. accept where the other end
>> never retries.
>
> Can you submit a liburing test case for this too?
Made some for v1, I just sent out them.
--
Pavel Begunkov
next prev parent reply other threads:[~2021-09-14 15:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 15:12 [PATCH v2 5.15] io_uring: auto-removal for direct open/accept Pavel Begunkov
2021-09-14 15:14 ` Jens Axboe
2021-09-14 15:21 ` Pavel Begunkov [this message]
2021-09-14 15:36 ` Jens Axboe
2021-09-14 15:48 ` Pavel Begunkov
2021-09-14 15:50 ` Jens Axboe
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