tree 8e297dd00c9cef73f67424b72a5669d6a97d13f7
parent 951b5d959f1da4bae8910085a2d8d6a3d374c72d
author Eric Dumazet <edumazet@google.com> 1445025601 -0700
committer David S. Miller <davem@davemloft.net> 1445232362 -0700

tcp: do not set queue_mapping on SYNACK

At the time of commit fff326990789 ("tcp: reflect SYN queue_mapping into
SYNACK packets") we had little ways to cope with SYN floods.

We no longer need to reflect incoming skb queue mappings, and instead
can pick a TX queue based on cpu cooking the SYNACK, with normal XPS
affinities.

Note that all SYNACK retransmits were picking TX queue 0, this no longer
is a win given that SYNACK rtx are now distributed on all cpus.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>