tcp: tcp_make_synack() can use alloc_skb()
There is no value using sock_wmalloc() in tcp_make_synack(). A listener socket only sends SYNACK packets, they are not queued in a socket queue, only in Qdisc and device layers, so the number of in flight packets is limited in these layers. We used sock_wmalloc() with the %force parameter set to 1 to ignore socket limits anyway. This patch removes two atomic operations per SYNACK packet. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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