linux/net/netrom
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
..
af_netrom.c [NET]: move struct proto_ops to const 2006-01-03 13:11:15 -08:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nr_dev.c [AX.25]: Fix packet socket crash 2005-10-05 12:16:04 -07:00
nr_in.c [NETROM]: Fix three if-statements in nr_state1_machine() 2005-12-21 18:38:26 -08:00
nr_loopback.c [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
nr_out.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nr_route.c [AX25]: Make ax2asc thread-proof 2005-09-06 15:49:39 -07:00
nr_subr.c [NETROM]: Implement G8PZT Circuit reset for NET/ROM 2005-09-12 14:27:37 -07:00
nr_timer.c [TCP]: Move the tcp sock states to net/tcp_states.h 2005-08-29 15:41:54 -07:00
sysctl_net_netrom.c [NETROM]: Implement G8PZT Circuit reset for NET/ROM 2005-09-12 14:27:37 -07:00