From ba89966c1984513f4f2cc0a6c182266be44ddd03 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 26 Aug 2005 12:05:31 -0700 Subject: [NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers This patch puts mostly read only data in the right section (read_mostly), to help sharing of these data between CPUS without memory ping pongs. On one of my production machine, tcp_statistics was sitting in a heavily modified cache line, so *every* SNMP update had to force a reload. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/ip_input.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/ipv4/ip_input.c') diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 220a8b5920e..473d0f2b2e0 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -150,7 +150,7 @@ * SNMP management statistics */ -DEFINE_SNMP_STAT(struct ipstats_mib, ip_statistics); +DEFINE_SNMP_STAT(struct ipstats_mib, ip_statistics) __read_mostly; /* * Process Router Attention IP option -- cgit v1.2.3