diff --git a/[refs] b/[refs]
index 769c2215a36c..569d8fba86f5 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7b4f4b5ebceab67ce440a61081a69f0265e17c2a
+refs/heads/master: b8059eadf9f4dc24bd72da71daa832a9a9899fb4
diff --git a/trunk/net/ipv4/tcp.c b/trunk/net/ipv4/tcp.c
index 591e96dffc28..8f5042bd8252 100644
--- a/trunk/net/ipv4/tcp.c
+++ b/trunk/net/ipv4/tcp.c
@@ -257,6 +257,7 @@
 #include <linux/fs.h>
 #include <linux/random.h>
 #include <linux/bootmem.h>
+#include <linux/cache.h>
 
 #include <net/icmp.h>
 #include <net/tcp.h>
@@ -275,9 +276,9 @@ atomic_t tcp_orphan_count = ATOMIC_INIT(0);
 
 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);