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[NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers

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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2005-08-26 12:05:31 -07:00 • committed by David S. Miller
commit ba89966c19
29 changed files with 39 additions and 39 deletions
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2
net/bridge/br_fdb.c
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@ -23,7 +23,7 @@
#include <asm/atomic.h>
#include "br_private.h"
static kmem_cache_t *br_fdb_cache;
static kmem_cache_t *br_fdb_cache __read_mostly;
static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
const unsigned char *addr);