linux_dsm_epyc7002/include
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
..
acpi ACPI / processor replace __attribute__((packed)) by __packed 2014-06-17 14:00:15 +02:00
asm-generic Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-06-12 19:18:49 -07:00
clocksource
crypto crypto: hash - Add real ahash walk interface 2014-05-21 20:56:12 +08:00
drm drm/i915, HD-audio: Don't continue probing when nomodeset is given 2014-06-16 10:34:06 +02:00
dt-bindings The i.MX fixes for 3.16: 2014-06-23 14:12:48 +02:00
keys
kvm
linux inet: move ipv6only in sock_common 2014-07-01 23:46:21 -07:00
math-emu
media Merge branch 'topic/omap3isp' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-06-12 23:04:28 -07:00
memory
misc
net inet: move ipv6only in sock_common 2014-07-01 23:46:21 -07:00
pcmcia
ras
rdma Merge branches 'core', 'cxgb3', 'cxgb4', 'iser', 'iwpm', 'misc', 'mlx4', 'mlx5', 'noio', 'ocrdma', 'qib', 'srp' and 'usnic' into for-next 2014-06-10 10:12:14 -07:00
rxrpc
scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-06-12 22:38:32 -07:00
sound ALSA: control: Protect user controls against concurrent access 2014-06-18 15:12:33 +02:00
target target: Report correct response length for some commands 2014-06-11 12:15:30 -07:00
trace tracing: Add __field_struct macro for TRACE_EVENT() 2014-06-21 00:18:42 -04:00
uapi ipv6: Allow accepting RA from local IP addresses. 2014-07-01 12:16:24 -07:00
video Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-06-12 11:32:30 -07:00
xen Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-06-12 14:27:40 -07:00
Kbuild