linux-kernel - Re: [PATCH v5 00/26] Generic `Allocator` support for Rust

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Message-ID: <Zr1teqjuOHeeFO4Z@cassiopeiae>
Date: Thu, 15 Aug 2024 04:52:42 +0200
From: Danilo Krummrich <dakr@...nel.org>
To: Boqun Feng <boqun.feng@...il.com>
Cc: ojeda@...nel.org, alex.gaynor@...il.com, wedsonaf@...il.com,
	gary@...yguo.net, bjorn3_gh@...tonmail.com, benno.lossin@...ton.me,
	a.hindborg@...sung.com, aliceryhl@...gle.com,
	akpm@...ux-foundation.org, daniel.almeida@...labora.com,
	faith.ekstrand@...labora.com, boris.brezillon@...labora.com,
	lina@...hilina.net, mcanal@...lia.com, zhiw@...dia.com,
	cjia@...dia.com, jhubbard@...dia.com, airlied@...hat.com,
	ajanulgu@...hat.com, lyude@...hat.com, linux-kernel@...r.kernel.org,
	rust-for-linux@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v5 00/26] Generic `Allocator` support for Rust

On Wed, Aug 14, 2024 at 12:32:15PM -0700, Boqun Feng wrote:
> Hi Danilo,
> 
> I'm trying to put your series on rust-dev, but I hit a few conflicts due
> to the conflict with `Box::drop_contents`, which has been in rust-dev
> for a while. And the conflict is not that trivial for me to resolve.
> So just a head-up, that's a requirement for me to put it on rust-dev for
> more tests from my end ;-)

I rebased everything and you can fetch them from [1].

I resolved the following conflicts:

  - for `Box`, implement
    - `drop_contents`
    - `manually_drop_contents` [2]
    - ``move_out` [2]
    - `BorrowedMut` for `ForeignOwnable` for `Box<T, A>` and `Pin<Box<T, A>>`
    - `InPlaceWrite` and updated `InPlaceInit`
  - for `RBTreeNode`, make use of `Box::move_out` to replace the original
    implementation partially moving out of `Box`

@Alice: Please have a look at the changes for `RBTreeNode`. Maybe it's also
worth having them in a separate patch.

- Danilo


[1] https://git.kernel.org/pub/scm/linux/kernel/git/dakr/linux.git/log/?h=rust-dev/mm
[2] https://git.kernel.org/pub/scm/linux/kernel/git/dakr/linux.git/commit/?h=rust-dev/mm&id=ef80ccca2ccebf3c7bcafdc13d1bfe81341cbe63
[3] https://git.kernel.org/pub/scm/linux/kernel/git/dakr/linux.git/diff/rust/kernel/rbtree.rs?h=rust-dev/mm&id=c361d66df7fb7760064fbca6bf9d72171c352a73

> 
> Regards,
> Boqun