bpf: devmap, use cond_resched instead of cpu_relax
Be a bit more friendly about waiting for flush bits to complete. Replace the cpu_relax() with a cond_resched(). Suggested-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NDaniel Borkmann <daniel@iogearbox.net> Signed-off-by: NJohn Fastabend <john.fastabend@gmail.com> Acked-by: NAlexei Starovoitov <ast@kernel.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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