kernel_optimize_test/net/dccp
Eric Dumazet 9fe516ba3f inet: move ipv6only in sock_common
When an UDP application switches from AF_INET to AF_INET6 sockets, we
have a small performance degradation for IPv4 communications because of
extra cache line misses to access ipv6only information.

This can also be noticed for TCP listeners, as ipv6_only_sock() is also
used from __inet_lookup_listener()->compute_score()

This is magnified when SO_REUSEPORT is used.

Move ipv6only into struct sock_common so that it is available at
no extra cost in lookups.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-01 23:46:21 -07:00
..
ccids
ackvec.c
ackvec.h
ccid.c
ccid.h
dccp.h
diag.c
feat.c
feat.h
input.c
ipv4.c net: Eliminate no_check from protosw 2014-05-23 16:28:53 -04:00
ipv6.c net: remove inet6_reqsk_alloc 2014-06-27 15:53:35 -07:00
ipv6.h
Kconfig
Makefile
minisocks.c inet: move ipv6only in sock_common 2014-07-01 23:46:21 -07:00
options.c
output.c
probe.c
proto.c
qpolicy.c
sysctl.c
timer.c