Cong Wang wrote:

From: Cong Wang <redacted>

Currently we rely on lock_sock to protect ingress_msg,
it is too big for this, we can actually just use a spinlock
to protect this list like protecting other skb queues.

__tcp_bpf_recvmsg() is still special because of peeking,
it still has to use lock_sock.

Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Lorenz Bauer <redacted>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Cong Wang <redacted>
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Acked-by: John Fastabend <john.fastabend@gmail.com>