Re: [PATCH bpf-next v2 3/3] bpf, arena: check range_tree_set return in arena_free_pages and arena_free_worker

> commit bfa5738a7c316a45ba16a067c92606ef3610c0b9
> Author: Yuan Chen <[email protected]>
> Date:   Mon Aug 10 17:46:34 2026 +0800
>
>     bpf, arena: check range_tree_set return in arena_free_pages and arena_free_worker
>
>     arena_free_pages() and arena_free_worker() now handle range_tree_set()
>     errors. arena_free_pages() aborts the free on error, and
>     arena_free_worker() moves range_tree_set() before PTE clearing so that a
>     failed tree update leaves the PTEs intact instead of freeing pages that
>     the arena free tree does not track.
>
>     Signed-off-by: Yuan Chen <[email protected]>

This commit fixes missing error handling for range_tree_set() that can
lead to memory tracking inconsistencies. Should this include a Fixes: tag
pointing to the original commit that introduced bpf_arena?

  Fixes: 317460317a02 ("bpf: Introduce bpf_arena.")


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