Re: [PATCHSET SLOP RFC 6/6] sched_ext: Convert scx_bpf_cid_override() to take an arena pointer

On the pre-existing READ_ONCE() note:

Agreed as hardening for concurrently-writable arena memory (in practice c
is a register-held local, so the reload doesn't happen, but READ_ONCE()
is the more robust idiom). This is a NOT_SIGNED_OFF demo; I'll add it in
the sched_ext rework after bpf-next is pulled in, not in this RFC patch.

Thanks.