kernel_optimize_test/net/atm
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
..
addr.c [ATM]: add support for LECS addresses learned from network 2005-10-06 22:19:28 -07:00
addr.h [ATM]: add support for LECS addresses learned from network 2005-10-06 22:19:28 -07:00
atm_misc.c [ATM]: atm_pcr_goal() doesn't modify its argument's contents -- mark it as const 2005-11-29 16:13:55 -08:00
br2684.c [ATM]: [br2684] if we free the skb, we should return 0 2005-10-07 13:44:35 -07:00
clip.c [IPV4]: Replace __in_dev_get with __in_dev_get_rcu/rtnl 2005-10-03 14:35:55 -07:00
common.c [ATM]: deregistration removes device from atm_devs list immediately 2005-11-29 16:16:41 -08:00
common.h [ATM]: deregistration removes device from atm_devs list immediately 2005-11-29 16:16:41 -08:00
ioctl.c [ATM]: net/atm/ioctl.c: autoload pppoatm and br2684 2005-09-28 16:34:24 -07:00
ipcommon.c [NET]: Kill skb->list 2005-08-29 15:31:14 -07:00
ipcommon.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [ATM]: Trivial spelling fix patch for net/Kconfig 2005-07-19 13:56:53 -07:00
lec_arpc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
lec.c [ATM]: [lec] reset retry counter when new arp issued 2005-09-29 17:31:30 -07:00
lec.h 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
mpc.c [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
mpc.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mpoa_caches.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mpoa_caches.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mpoa_proc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pppoatm.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
proc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
protocols.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pvc.c [NET]: move struct proto_ops to const 2006-01-03 13:11:15 -08:00
raw.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
resources.c [ATM]: deregistration removes device from atm_devs list immediately 2005-11-29 16:16:41 -08:00
resources.h [ATM]: avoid race conditions related to atm_devs list 2005-11-29 16:16:21 -08:00
signaling.c [ATM]: track and close listen sockets when sigd exits 2005-09-28 16:35:01 -07:00
signaling.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
svc.c [NET]: move struct proto_ops to const 2006-01-03 13:11:15 -08:00