[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>
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David S. Miller

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@@ -1397,8 +1397,8 @@ static struct in_device * ip_mc_find_dev(struct ip_mreqn *imr)
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/*
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* Join a socket to a group
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*/
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int sysctl_igmp_max_memberships = IP_MAX_MEMBERSHIPS;
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int sysctl_igmp_max_msf = IP_MAX_MSF;
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int sysctl_igmp_max_memberships __read_mostly = IP_MAX_MEMBERSHIPS;
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int sysctl_igmp_max_msf __read_mostly = IP_MAX_MSF;
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static int ip_mc_del1_src(struct ip_mc_list *pmc, int sfmode,
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