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Message-ID: <Zf4nE_AvHPx9F2nQ@boqun-archlinux>
Date: Fri, 22 Mar 2024 17:49:23 -0700
From: Boqun Feng <boqun.feng@...il.com>
To: Kent Overstreet <kent.overstreet@...ux.dev>
Cc: rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org,
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linux-arm-kernel@...ts.infradead.org, linux-fsdevel@...r.kernel.org
Subject: Re: [WIP 0/3] Memory model and atomic API in Rust
On Fri, Mar 22, 2024 at 05:15:08PM -0700, Boqun Feng wrote:
[...]
> >
> > I wonder about that. The disadvantage of only supporting LKMM atomics is
> > that we'll be incompatible with third party code, and we don't want to
> > be rolling all of our own data structures forever.
> >
>
> A possible solution to that is a set of C++ memory model atomics
> implemented by LKMM atomics. That should be possible.
>
Another possible "solution" works in the opposite direction, since the
folder rust/kernel/sync/atomic is quite stand-alone, we can export that
as a Rust crate (library), and third party code can support using LKMM
atomics instead of Rust own atomics ;-) Of course if the project is
supposed to work with Linux kernel.
Regards,
Boqun
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