From: David S. Miller Date: Mon, 5 Oct 2015 09:46:26 +0000 (-0700) Subject: Merge branch 'tcp-listener-fixes-and-improvement' X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2472186f58ee1e4b9ca194245fef03931f6de90a;p=linux-beck.git Merge branch 'tcp-listener-fixes-and-improvement' Eric Dumazet says: ==================== tcp: lockless listener fixes and improvement This fixes issues with TCP FastOpen vs lockless listeners, and SYNACK being attached to request sockets. Then, last patch brings performance improvement for syncookies generation and validation. Tested under a 4.3 Mpps SYNFLOOD attack, new perf profile looks like : 12.11% [kernel] [k] sha_transform 5.83% [kernel] [k] tcp_conn_request 4.59% [kernel] [k] __inet_lookup_listener 4.11% [kernel] [k] ipt_do_table 3.91% [kernel] [k] tcp_make_synack 3.05% [kernel] [k] fib_table_lookup 2.74% [kernel] [k] sock_wfree 2.66% [kernel] [k] memcpy_erms 2.12% [kernel] [k] tcp_v4_rcv ==================== Signed-off-by: David S. Miller --- 2472186f58ee1e4b9ca194245fef03931f6de90a