linux-kernel - Re: [PATCH bpf-next 00/10] Add support arena atomics for RV64

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Message-ID: <CAJ+HfNi-u0aYggUAUS5vc6=6gPjaQ-8fwRfK2peMqjJh+m+ZzA@mail.gmail.com>
Date: Sun, 20 Jul 2025 22:37:41 +0200
From: Björn Töpel <bjorn@...nel.org>
To: Pu Lehui <pulehui@...weicloud.com>
Cc: bpf@...r.kernel.org, linux-riscv@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, Puranjay Mohan <puranjay@...nel.org>, 
	Palmer Dabbelt <palmer@...belt.com>, Alexandre Ghiti <alex@...ti.fr>, Alexei Starovoitov <ast@...nel.org>, 
	Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, 
	Martin KaFai Lau <martin.lau@...ux.dev>, Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>, 
	Yonghong Song <yonghong.song@...ux.dev>, John Fastabend <john.fastabend@...il.com>, 
	KP Singh <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>, 
	Jiri Olsa <jolsa@...nel.org>, Pu Lehui <pulehui@...wei.com>
Subject: Re: [PATCH bpf-next 00/10] Add support arena atomics for RV64

Lehui!

On Sat, 19 Jul 2025 at 11:14, Pu Lehui <pulehui@...weicloud.com> wrote:
>
> From: Pu Lehui <pulehui@...wei.com>
>
> patch 1-3 refactor redundant load and store operations.
> patch 4-7 add Zacas instructions for cmpxchg.
> patch 8 optimizes exception table handling.
> patch 9-10 add support arena atomics for RV64.
>
> Tests `test_progs -t atomic,arena` have passed as shown bellow,
> as well as `test_verifier` and `test_bpf.ko` have passed.

Awesome, thank you for working on this!

I'm on vacation until 4th Aug, but I'll try to do a review before that
-- but expect some slowness!


Thanks,
Björn