[TCP]: Mark tcp_*mem[] __read_mostly.

#include <linux/fs.h>

#include <linux/random.h>

#include <linux/bootmem.h>

#include <linux/cache.h>

#include <net/icmp.h>

#include <net/tcp.h>

EXPORT_SYMBOL_GPL(tcp_orphan_count);

int sysctl_tcp_mem[3];

int sysctl_tcp_wmem[3];

int sysctl_tcp_rmem[3];

int sysctl_tcp_mem[3] __read_mostly;

int sysctl_tcp_wmem[3] __read_mostly;

int sysctl_tcp_rmem[3] __read_mostly;

EXPORT_SYMBOL(sysctl_tcp_mem);

EXPORT_SYMBOL(sysctl_tcp_rmem);