[NETNS][FRAGS]: Make the nqueues counter per-namespace.

This is simple - just move the variable from struct inet_frags
to struct netns_frags and adjust the usage appropriately.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 56211ef..cd8c830 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -95,9 +95,9 @@
 
 static struct inet_frags ip4_frags;
 
-int ip_frag_nqueues(void)
+int ip_frag_nqueues(struct net *net)
 {
-	return ip4_frags.nqueues;
+	return net->ipv4.frags.nqueues;
 }
 
 int ip_frag_mem(void)
@@ -675,6 +675,8 @@
 
 static int ipv4_frags_init_net(struct net *net)
 {
+	inet_frags_init_net(&net->ipv4.frags);
+
 	return ip4_frags_ctl_register(net);
 }