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 Eric Dumazet (5): tcp: fix fastopen races vs lockless listener inet: ip_skb_dst_mtu() should use sk_fullsock() ipv6: inet6_sk() should use sk_fullsock() net: use sk_fullsock() in __netdev_pick_tx() tcp: avoid two atomic ops for syncookies include/linux/ipv6.h | 4 ++-- include/net/inet_sock.h | 3 ++- include/net/ip.h | 9 ++++++--- include/net/request_sock.h | 12 +++++++++--- net/core/dev.c | 1 + net/dccp/ipv4.c | 2 +- net/dccp/ipv6.c | 2 +- net/ipv4/syncookies.c | 2 +- net/ipv4/tcp_fastopen.c | 26 +++++++------------------- net/ipv4/tcp_input.c | 14 ++++++++++---- net/ipv6/syncookies.c | 2 +- 11 files changed, 41 insertions(+), 36 deletions(-) -- 2.6.0.rc2.230.g3dd15c0 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html