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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 <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2005-08-26 12:05:31 -07:00
committed by David S. Miller
parent 29cb9f9c55
commit ba89966c19
29 changed files with 39 additions and 39 deletions
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4
net/sunrpc/rpc_pipe.c
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@ -28,13 +28,13 @@
#include <linux/workqueue.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
static struct vfsmount *rpc_mount;
static struct vfsmount *rpc_mount __read_mostly;
static int rpc_mount_count;
static struct file_system_type rpc_pipe_fs_type;
static kmem_cache_t *rpc_inode_cachep;
static kmem_cache_t *rpc_inode_cachep __read_mostly;
#define RPC_UPCALL_TIMEOUT (30*HZ)