[NET/IPV4/IPV6]: Change some sysctl variables to __read_mostly
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>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 4af741e..f1ede90 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -146,7 +146,7 @@
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 @@
#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 @@
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 = {
{