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由 Eric Dumazet 提交于
sock_rcvlowat() or int_sk_rcvlowat() might be called without the socket lock for example from tcp_poll(). Use READ_ONCE() to document the fact that other cpus might change sk->sk_rcvlowat under us and avoid KCSAN splats. Use WRITE_ONCE() on write sides too. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
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