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authorDavid S. Miller <davem@davemloft.net>2015-10-05 02:46:26 -0700
committerDavid S. Miller <davem@davemloft.net>2015-10-05 02:46:26 -0700
commit2472186f58ee1e4b9ca194245fef03931f6de90a (patch)
tree75c793a05dd64db3df05f804e429bae45ead20d1 /lib
parent3e087caa23ef36370bfb925d3bbca78e8302d3ce (diff)
parenta1a5344ddbe8fd3e080013b317ac9a664490cfdf (diff)
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 <davem@davemloft.net>
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