Re: [PATCH bpf-next v7 0/9] Introduce arena library and runtime

[Matt Bobrowski <mattbobrowski@google.com>]

On Thu, Apr 16, 2026 at 01:43:49PM -0700, Song Liu wrote:
> On Thu, Apr 16, 2026 at 1:31 PM Matt Bobrowski <mattbobrowski@google.com> wrote:
> [...]
> > >
> > > I haven't had an opportunity to go through this patch series just yet,
> > > but can I just say that it excites me considerably! I've been wanting
> > > to carve out some time to implement something exactly like this for a
> > > very long time (since BPF arena maps were initially introduced) as I
> > > think it's going to be incredibly valuable for BPF users moving
> > > forward.
> >
> > I swear that I also saw a notification stating that this series was
> > applied to bpf/bpf-next.git (master), but upon checking I only see
> > that commit 4c5f21d4dfa ("selftests/bpf: Add tests for non-arena/arena
> > operations") from the series was applied. What's going on there?
> 
> Part of it was committed. From patchwork-bot:
> 
> Here is the summary with links:
>   - [bpf-next,v7,1/9] bpf: Allow instructions with arena source and
> non-arena dest registers
>     (no matching commit)
>   - [bpf-next,v7,2/9] selftests/bpf: Add tests for non-arena/arena operations
>     https://git.kernel.org/bpf/bpf-next/c/4c5f21d4dfa4
>   - [bpf-next,v7,3/9] selftests/bpf: Move bpf_arena_spin_lock.h to the top level
>     (no matching commit)
>   - [bpf-next,v7,4/9] selftests/bpf: Move READ_ONCE/WRITE_ONCE macros
> to bpf_experimental.h
>     (no matching commit)
>   - [bpf-next,v7,5/9] selftests/bpf: Add basic libarena scaffolding
>     (no matching commit)
>   - [bpf-next,v7,6/9] selftests/bpf: Add arena ASAN runtime to libarena
>     (no matching commit)
>   - [bpf-next,v7,7/9] selftests/bpf: Add ASAN support for libarena selftests
>     (no matching commit)
>   - [bpf-next,v7,8/9] selftests/bpf: Add buddy allocator for libarena
>     (no matching commit)
>   - [bpf-next,v7,9/9] selftests/bpf: Add selftests for libarena buddy allocator
>     (no matching commit)

Ah, yeah, I realized only after I had sent out my email.