linux-kernel - Re: [PATCH] io_uring: add missing IORING_MAP_OFF_ZCRX_REGION in io_uring

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Message-ID: <0c1faa58-b658-4a64-9d42-eaf603fdc69d@kernel.dk>
Date: Fri, 21 Feb 2025 09:39:55 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Pavel Begunkov <asml.silence@...il.com>, lizetao <lizetao1@...wei.com>,
 Bui Quang Minh <minhquangbui99@...il.com>
Cc: David Wei <dw@...idwei.uk>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "io-uring@...r.kernel.org" <io-uring@...r.kernel.org>
Subject: Re: [PATCH] io_uring: add missing IORING_MAP_OFF_ZCRX_REGION in
 io_uring_mmap

On 2/21/25 5:20 AM, Pavel Begunkov wrote:
> On 2/21/25 09:10, lizetao wrote:
>> Hi,
>>
>>> -----Original Message-----
>>> From: Bui Quang Minh <minhquangbui99@...il.com>
>>> Sent: Friday, February 21, 2025 5:00 PM
>>> To: io-uring@...r.kernel.org
>>> Cc: Jens Axboe <axboe@...nel.dk>; Pavel Begunkov
>>> <asml.silence@...il.com>; David Wei <dw@...idwei.uk>; linux-
>>> kernel@...r.kernel.org; Bui Quang Minh <minhquangbui99@...il.com>
>>> Subject: [PATCH] io_uring: add missing IORING_MAP_OFF_ZCRX_REGION in
>>> io_uring_mmap
>>>
>>> Allow user to mmap the kernel allocated zerocopy-rx refill queue.
>>>
>>
>> Maybe fixed-tag should be added here.
> 
> No need, it's not strictly a fix, and whlist it's not yet sent to
> linus, the tags only cause confusion when hashes change, e.g. on rebase.

I do like using fixes still, if only to provide a link to the original
commit without needing to dig for it. And yeah there's the occasional
rebase where I forget to update the sha, but those get discovered pretty
quick.

-- 
Jens Axboe