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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/xfrm/xfrm_input.c
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@ -12,7 +12,7 @@
#include <net/ip.h>
#include <net/xfrm.h>
static kmem_cache_t *secpath_cachep;
static kmem_cache_t *secpath_cachep __read_mostly;
void __secpath_destroy(struct sec_path *sp)
{

2
net/xfrm/xfrm_policy.c
View file

@ -37,7 +37,7 @@ EXPORT_SYMBOL(xfrm_policy_list);
static DEFINE_RWLOCK(xfrm_policy_afinfo_lock);
static struct xfrm_policy_afinfo *xfrm_policy_afinfo[NPROTO];
static kmem_cache_t *xfrm_dst_cache;
static kmem_cache_t *xfrm_dst_cache __read_mostly;
static struct work_struct xfrm_policy_gc_work;
static struct list_head xfrm_policy_gc_list =