linux-kernel - Re: (subset) [RFC PATCH v5 0/5] introduce io_uring_cmd_import_fixed

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Message-ID: <Z9tzvz_4IDzMUOFb@sidongui-MacBookPro.local>
Date: Thu, 20 Mar 2025 10:47:43 +0900
From: Sidong Yang <sidong.yang@...iosa.ai>
To: Jens Axboe <axboe@...nel.dk>
Cc: dsterba@...e.cz, Josef Bacik <josef@...icpanda.com>,
	David Sterba <dsterba@...e.com>,
	Pavel Begunkov <asml.silence@...il.com>,
	linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	io-uring@...r.kernel.org
Subject: Re: (subset) [RFC PATCH v5 0/5] introduce
 io_uring_cmd_import_fixed_vec

On Wed, Mar 19, 2025 at 11:10:07AM -0600, Jens Axboe wrote:
> On 3/19/25 11:07 AM, David Sterba wrote:
> > On Wed, Mar 19, 2025 at 09:27:37AM -0600, Jens Axboe wrote:
> >> On 3/19/25 9:26 AM, Jens Axboe wrote:
> >>>
> >>> On Wed, 19 Mar 2025 06:12:46 +0000, Sidong Yang wrote:
> >>>> This patche series introduce io_uring_cmd_import_vec. With this function,
> >>>> Multiple fixed buffer could be used in uring cmd. It's vectored version
> >>>> for io_uring_cmd_import_fixed(). Also this patch series includes a usage
> >>>> for new api for encoded read/write in btrfs by using uring cmd.
> >>>>
> >>>> There was approximately 10 percent of performance improvements through benchmark.
> >>>> The benchmark code is in
> >>>> https://github.com/SidongYang/btrfs-encoded-io-test/blob/main/main.c
> >>>>
> >>>> [...]
> >>>
> >>> Applied, thanks!
> >>>
> >>> [1/5] io_uring: rename the data cmd cache
> >>>       commit: 575e7b0629d4bd485517c40ff20676180476f5f9
> >>> [2/5] io_uring/cmd: don't expose entire cmd async data
> >>>       commit: 5f14404bfa245a156915ee44c827edc56655b067
> >>> [3/5] io_uring/cmd: add iovec cache for commands
> >>>       commit: fe549edab6c3b7995b58450e31232566b383a249
> >>> [4/5] io_uring/cmd: introduce io_uring_cmd_import_fixed_vec
> >>>       commit: b24cb04c1e072ecd859a98b2e4258ca8fe8d2d4d
> >>
> >> 1-4 look pretty straight forward to me - I'll be happy to queue the
> >> btrfs one as well if the btrfs people are happy with it, just didn't
> >> want to assume anything here.
> > 
> > For 6.15 is too late so it makes more sense to take it through the btrfs
> > patches targetting 6.16.
> 
> No problem - Sidong, guessing you probably want to resend patch 5/5 once
> btrfs has a next branch based on 6.15-rc1 or later.

Thanks, I'll resend only patch 5/5 then.

Thanks,
Sidong
> 
> -- 
> Jens Axboe
>