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[NET/IPV4/IPV6]: Change some sysctl variables to __read_mostly

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Change net/core, ipv4 and ipv6 sysctl variables to __read_mostly.

Couldn't actually measure any performance increase while testing (.3%
I consider noise), but seems like the right thing to do.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Brian Haley
2006-09-22 14:15:41 -07:00
committed by David S. Miller
parent 56fc85ac96
commit ab32ea5d8a
18 changed files with 67 additions and 67 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
net/ipv6/addrconf.c
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@@ -146,7 +146,7 @@ static int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *de
static ATOMIC_NOTIFIER_HEAD(inet6addr_chain);
struct ipv6_devconf ipv6_devconf = {
struct ipv6_devconf ipv6_devconf __read_mostly = {
.forwarding = 0,
.hop_limit = IPV6_DEFAULT_HOPLIMIT,
.mtu6 = IPV6_MIN_MTU,
@@ -177,7 +177,7 @@ struct ipv6_devconf ipv6_devconf = {
#endif
};
static struct ipv6_devconf ipv6_devconf_dflt = {
static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
.forwarding = 0,
.hop_limit = IPV6_DEFAULT_HOPLIMIT,
.mtu6 = IPV6_MIN_MTU,
@@ -3665,7 +3665,7 @@ static struct addrconf_sysctl_table
ctl_table addrconf_conf_dir[2];
ctl_table addrconf_proto_dir[2];
ctl_table addrconf_root_dir[2];
} addrconf_sysctl = {
} addrconf_sysctl __read_mostly = {
.sysctl_header = NULL,
.addrconf_vars = {
{

2
net/ipv6/af_inet6.c
View File

@@ -67,7 +67,7 @@ MODULE_AUTHOR("Cast of dozens");
MODULE_DESCRIPTION("IPv6 protocol stack for Linux");
MODULE_LICENSE("GPL");
int sysctl_ipv6_bindv6only;
int sysctl_ipv6_bindv6only __read_mostly;
/* The inetsw table contains everything that inet_create needs to
* build a new socket.

2
net/ipv6/icmp.c
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@@ -151,7 +151,7 @@ static int is_ineligible(struct sk_buff *skb)
return 0;
}
static int sysctl_icmpv6_time = 1*HZ;
static int sysctl_icmpv6_time __read_mostly = 1*HZ;
/*
* Check the ICMP output rate limit

2
net/ipv6/mcast.c
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@@ -171,7 +171,7 @@ static int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
#define IPV6_MLD_MAX_MSF 64
int sysctl_mld_max_msf = IPV6_MLD_MAX_MSF;
int sysctl_mld_max_msf __read_mostly = IPV6_MLD_MAX_MSF;
/*
* socket join on multicast group

8
net/ipv6/reassembly.c
View File

@@ -53,10 +53,10 @@
#include <net/ndisc.h>
#include <net/addrconf.h>
int sysctl_ip6frag_high_thresh = 256*1024;
int sysctl_ip6frag_low_thresh = 192*1024;
int sysctl_ip6frag_high_thresh __read_mostly = 256*1024;
int sysctl_ip6frag_low_thresh __read_mostly = 192*1024;
int sysctl_ip6frag_time = IPV6_FRAG_TIMEOUT;
int sysctl_ip6frag_time __read_mostly = IPV6_FRAG_TIMEOUT;
struct ip6frag_skb_cb
{
@@ -152,7 +152,7 @@ static unsigned int ip6qhashfn(u32 id, struct in6_addr *saddr,
}
static struct timer_list ip6_frag_secret_timer;
int sysctl_ip6frag_secret_interval = 10 * 60 * HZ;
int sysctl_ip6frag_secret_interval __read_mostly = 10 * 60 * HZ;
static void ip6_frag_secret_rebuild(unsigned long dummy)
{