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linux/net/dccp
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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 dccp: re-enable debug macro 2014-02-16 23:45:00 -05:00
ackvec.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
ackvec.h net: dccp: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
ccid.c net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
ccid.h net: dccp: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
dccp.h dccp: remove obsolete code 2014-01-04 20:18:49 -05:00
diag.c inet_diag: Rename inet_diag_req into inet_diag_req_v2 2012-01-11 12:56:06 -08:00
feat.c net: Fix (nearly-)kernel-doc comments for various functions 2012-07-10 23:13:45 -07:00
feat.h net: dccp: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
input.c net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
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 inet: includes a sock_common in request_sock 2013-10-10 00:08:07 -04:00
Kconfig net/dccp: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:39:34 -08:00
Makefile
minisocks.c inet: move ipv6only in sock_common 2014-07-01 23:46:21 -07:00
options.c dccp: remove obsolete code 2014-01-04 20:18:49 -05:00
output.c ipv4: add a sock pointer to ip_queue_xmit() 2014-04-15 12:58:34 -04:00
probe.c dccp: catch failed request_module call in dccp_probe init 2013-12-19 19:25:50 -05:00
proto.c net: clean up snmp stats code 2014-05-07 16:06:05 -04:00
qpolicy.c
sysctl.c dccp: make the request_retries minimum is 1 2014-05-14 15:34:16 -04:00
timer.c net/dccp/timer.c: use 'u64' instead of 's64' to avoid compiler's warning 2014-05-22 15:31:45 -04:00