On Wed, 9 Oct 2019 14:51:20 -0700, Eric Dumazet wrote:
> reqsk_queue_empty() is called from inet_csk_listen_poll() while
> other cpus might write ->rskq_accept_head value.
>
> Use {READ|WRITE}_ONCE() to avoid compiler tricks
> and potential KCSAN splats.
>
> Fixes: fff1f3001cc5 ("tcp: add a spinlock to protect struct
> request_sock_queue")
> Signed-off-by: Eric Dumazet <eduma...@google.com>Applied, thanks!
