From: Keith Busch <kbusch@kernel.org>
To: Bart Van Assche <bvanassche@acm.org>
Cc: "Andreas Hindborg" <nmi@metaspace.dk>,
"Jens Axboe" <axboe@kernel.dk>, "Christoph Hellwig" <hch@lst.de>,
"Damien Le Moal" <Damien.LeMoal@wdc.com>,
"Hannes Reinecke" <hare@suse.de>,
lsf-pc@lists.linux-foundation.org,
rust-for-linux@vger.kernel.org, linux-block@vger.kernel.org,
"Matthew Wilcox" <willy@infradead.org>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Wedson Almeida Filho" <wedsonaf@gmail.com>,
"Boqun Feng" <boqun.feng@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <benno.lossin@proton.me>,
"open list" <linux-kernel@vger.kernel.org>,
gost.dev@samsung.com
Subject: Re: [RFC PATCH 00/11] Rust null block driver
Date: Thu, 4 May 2023 12:52:33 -0600 [thread overview]
Message-ID: <ZFP+8apHunCCMmOZ@kbusch-mbp.dhcp.thefacebook.com> (raw)
In-Reply-To: <b9a1c1b2-3baa-2cad-31ae-8b14e4ee5709@acm.org>
On Thu, May 04, 2023 at 11:36:01AM -0700, Bart Van Assche wrote:
> On 5/4/23 11:15, Andreas Hindborg wrote:
> > If it is still unclear to you why this effort was started, please do let
> > me know and I shall try to clarify further :)
>
> It seems like I was too polite in my previous email. What I meant is that
> rewriting code is useful if it provides a clear advantage to the users of
> a driver. For null_blk, the users are kernel developers. The code that has
> been posted is the start of a rewrite of the null_blk driver. The benefits
> of this rewrite (making low-level memory errors less likely) do not outweigh
> the risks that this effort will introduce functional or performance regressions.
Instead of replacing, would co-existing be okay? Of course as long as
there's no requirement to maintain feature parity between the two.
Actually, just call it "rust_blk" and declare it has no relationship to
null_blk, despite their functional similarities: it's a developer
reference implementation for a rust block driver.
next prev parent reply other threads:[~2023-05-04 18:52 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-03 9:06 Andreas Hindborg
2023-05-03 9:06 ` [RFC PATCH 01/11] rust: add radix tree abstraction Andreas Hindborg
2023-05-03 10:34 ` Benno Lossin
2023-05-05 4:04 ` Matthew Wilcox
2023-05-05 4:49 ` Andreas Hindborg
2023-05-05 5:28 ` Matthew Wilcox
2023-05-05 6:09 ` Christoph Hellwig
2023-05-05 8:33 ` Chaitanya Kulkarni
2023-05-03 9:06 ` [RFC PATCH 02/11] rust: add `pages` module for handling page allocation Andreas Hindborg
2023-05-03 12:31 ` Benno Lossin
2023-05-03 12:38 ` Benno Lossin
2023-05-05 4:09 ` Matthew Wilcox
2023-05-05 4:42 ` Andreas Hindborg
2023-05-05 5:29 ` Matthew Wilcox
2023-05-03 9:07 ` [RFC PATCH 03/11] rust: block: introduce `kernel::block::mq` module Andreas Hindborg
2023-05-08 12:29 ` Benno Lossin
2023-05-11 6:52 ` Sergio González Collado
2024-01-23 14:03 ` Andreas Hindborg (Samsung)
2024-01-12 9:18 ` Andreas Hindborg (Samsung)
2024-01-23 16:14 ` Benno Lossin
2024-01-23 18:39 ` Andreas Hindborg (Samsung)
2024-01-25 9:26 ` Benno Lossin
2024-01-29 14:14 ` Andreas Hindborg (Samsung)
2023-05-03 9:07 ` [RFC PATCH 04/11] rust: block: introduce `kernel::block::bio` module Andreas Hindborg
2023-05-08 12:58 ` Benno Lossin
2024-01-11 12:49 ` Andreas Hindborg (Samsung)
2024-02-28 14:31 ` Andreas Hindborg
2024-03-09 12:30 ` Benno Lossin
2023-05-03 9:07 ` [RFC PATCH 05/11] RUST: add `module_params` macro Andreas Hindborg
2023-05-03 9:07 ` [RFC PATCH 06/11] rust: apply cache line padding for `SpinLock` Andreas Hindborg
2023-05-03 12:03 ` Alice Ryhl
2024-02-23 11:29 ` Andreas Hindborg (Samsung)
2024-02-26 9:15 ` Alice Ryhl
2023-05-03 9:07 ` [RFC PATCH 07/11] rust: lock: add support for `Lock::lock_irqsave` Andreas Hindborg
2023-05-03 9:07 ` [RFC PATCH 08/11] rust: lock: implement `IrqSaveBackend` for `SpinLock` Andreas Hindborg
2023-05-03 9:07 ` [RFC PATCH 09/11] RUST: implement `ForeignOwnable` for `Pin` Andreas Hindborg
2023-05-03 9:07 ` [RFC PATCH 10/11] rust: add null block driver Andreas Hindborg
2023-05-03 9:07 ` [RFC PATCH 11/11] rust: inline a number of short functions Andreas Hindborg
2023-05-03 11:32 ` [RFC PATCH 00/11] Rust null block driver Niklas Cassel
2023-05-03 12:29 ` Andreas Hindborg
2023-05-03 13:54 ` Niklas Cassel
2023-05-03 16:47 ` Bart Van Assche
2023-05-04 18:15 ` Andreas Hindborg
2023-05-04 18:36 ` Bart Van Assche
2023-05-04 18:46 ` Andreas Hindborg
2023-05-04 18:52 ` Keith Busch [this message]
2023-05-04 19:02 ` Jens Axboe
2023-05-04 19:59 ` Andreas Hindborg
2023-05-04 20:55 ` Jens Axboe
2023-05-05 5:06 ` Andreas Hindborg
2023-05-05 11:14 ` Miguel Ojeda
2023-05-04 20:11 ` Miguel Ojeda
2023-05-04 20:22 ` Jens Axboe
2023-05-05 10:53 ` Miguel Ojeda
2023-05-05 12:24 ` Boqun Feng
2023-05-05 13:52 ` Boqun Feng
2023-05-05 19:42 ` Keith Busch
2023-05-05 21:46 ` Boqun Feng
2023-05-05 19:38 ` Bart Van Assche
2023-05-05 3:52 ` Christoph Hellwig
2023-06-06 13:33 ` Andreas Hindborg (Samsung)
2023-06-06 14:46 ` Miguel Ojeda
2023-05-05 5:28 ` Hannes Reinecke
2023-05-07 23:31 ` Luis Chamberlain
2023-05-07 23:37 ` Andreas Hindborg
[not found] ` <2B3CA5F1CCCFEAB2+20230727034517.GB126117@1182282462>
2023-07-28 6:49 ` Andreas Hindborg (Samsung)
2023-07-31 14:14 ` Andreas Hindborg (Samsung)
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