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
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af_key.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