Re: [PATCH bpf-next] bpf, arm64: Add support for lse atomics in bpf_arena

Hello:

This patch was applied to bpf/bpf-next.git (master) by Alexei Starovoitov ast@kernel.org:

On Fri, 26 Apr 2024 16:11:16 +0000 you wrote:

When LSE atomics are available, BPF atomic instructions are implemented as single ARM64 atomic instructions, therefore it is easy to enable these in bpf_arena using the currently available exception handling setup.

LL_SC atomics use loops and therefore would need more work to enable in bpf_arena.

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Here is the summary with links: - [bpf-next] bpf, arm64: Add support for lse atomics in bpf_arena https://git.kernel.org/bpf/bpf-next/c/e612b5c1d3ee

You are awesome, thank you!