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90ddc4f047
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> |
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| .. | ||
| ccids | ||
| ackvec.c | ||
| ackvec.h | ||
| ccid.c | ||
| ccid.h | ||
| dccp.h | ||
| diag.c | ||
| input.c | ||
| ipv4.c | ||
| ipv6.c | ||
| ipv6.h | ||
| Kconfig | ||
| Makefile | ||
| minisocks.c | ||
| options.c | ||
| output.c | ||
| proto.c | ||
| timer.c | ||