linux/net/sctp
Eric Dumazet 90ddc4f047 [NET]: move struct proto_ops to const
I noticed that some of 'struct proto_ops' used in the kernel may share
a cache line used by locks or other heavily modified data. (default
linker alignement is 32 bytes, and L1_CACHE_LINE is 64 or 128 at
least)

This patch makes sure a 'struct proto_ops' can be declared as const,
so that all cpus can share all parts of it without false sharing.

This is not mandatory : a driver can still use a read/write structure
if it needs to (and eventually a __read_mostly)

I made a global stubstitute to change all existing occurences to make
them const.

This should reduce the possibility of false sharing on SMP, and
speedup some socket system calls.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:11:15 -08:00
..
associola.c [SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft. 2006-01-03 13:11:11 -08:00
bind_addr.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
chunk.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
command.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
crc32c.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
debug.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
endpointola.c [SCTP]: Include ulpevents in socket receive buffer accounting. 2005-11-11 16:08:24 -08:00
input.c [SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft. 2006-01-03 13:11:11 -08:00
inqueue.c [SCTP]: Use struct list_head for chunk lists, not sk_buff_head. 2005-07-08 21:47:49 -07:00
ipv6.c [NET]: move struct proto_ops to const 2006-01-03 13:11:15 -08:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
objcnt.c [SCTP]: Audit return code of create_proc_* 2005-07-18 13:38:07 -07:00
output.c [SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft. 2006-01-03 13:11:11 -08:00
outqueue.c [SCTP]: Use struct list_head for chunk lists, not sk_buff_head. 2005-07-08 21:47:49 -07:00
primitive.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
proc.c [NET]: Wider use of for_each_*cpu() 2005-10-25 23:54:01 -02:00
protocol.c [NET]: move struct proto_ops to const 2006-01-03 13:11:15 -08:00
sm_make_chunk.c [NET]: kfree cleanup 2005-11-08 09:41:34 -08:00
sm_sideeffect.c [SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft. 2006-01-03 13:11:11 -08:00
sm_statefuns.c [SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft. 2006-01-03 13:11:11 -08:00
sm_statetable.c [SCTP] sctp_connectx() API support 2005-06-20 13:14:57 -07:00
socket.c [SCTP]: Add support for SCTP_DELAYED_ACK_TIME socket option. 2006-01-03 13:11:13 -08:00
ssnmap.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
sysctl.c [SCTP]: Include ulpevents in socket receive buffer accounting. 2005-11-11 16:08:24 -08:00
transport.c [SCTP]: Update SCTP_PEER_ADDR_PARAMS socket option to the latest api draft. 2006-01-03 13:11:11 -08:00
tsnmap.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ulpevent.c [SCTP]: Include ulpevents in socket receive buffer accounting. 2005-11-11 16:08:24 -08:00
ulpqueue.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00