[NET]: Move Qdisc_class_ops and Qdisc_ops in appropriate sections.

Qdisc_class_ops are const, and Qdisc_ops are mostly read.

Using "const" and "__read_mostly" qualifiers helps to reduce false
sharing.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 8ae137e..259321b 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -195,7 +195,7 @@
 {
 	unsigned long cl;
 	struct Qdisc *leaf;
-	struct Qdisc_class_ops *cops = p->ops->cl_ops;
+	const struct Qdisc_class_ops *cops = p->ops->cl_ops;
 
 	if (cops == NULL)
 		return NULL;
@@ -373,7 +373,7 @@
 
 void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n)
 {
-	struct Qdisc_class_ops *cops;
+	const struct Qdisc_class_ops *cops;
 	unsigned long cl;
 	u32 parentid;
 
@@ -417,7 +417,7 @@
 			*old = dev_graft_qdisc(dev, new);
 		}
 	} else {
-		struct Qdisc_class_ops *cops = parent->ops->cl_ops;
+		const struct Qdisc_class_ops *cops = parent->ops->cl_ops;
 
 		err = -EINVAL;
 
@@ -581,7 +581,7 @@
 check_loop_fn(struct Qdisc *q, unsigned long cl, struct qdisc_walker *w)
 {
 	struct Qdisc *leaf;
-	struct Qdisc_class_ops *cops = q->ops->cl_ops;
+	const struct Qdisc_class_ops *cops = q->ops->cl_ops;
 	struct check_loop_arg *arg = (struct check_loop_arg *)w;
 
 	leaf = cops->leaf(q, cl);
@@ -924,7 +924,7 @@
 	struct rtattr **tca = arg;
 	struct net_device *dev;
 	struct Qdisc *q = NULL;
-	struct Qdisc_class_ops *cops;
+	const struct Qdisc_class_ops *cops;
 	unsigned long cl = 0;
 	unsigned long new_cl;
 	u32 pid = tcm->tcm_parent;
@@ -1039,7 +1039,7 @@
 	struct nlmsghdr  *nlh;
 	unsigned char *b = skb_tail_pointer(skb);
 	struct gnet_dump d;
-	struct Qdisc_class_ops *cl_ops = q->ops->cl_ops;
+	const struct Qdisc_class_ops *cl_ops = q->ops->cl_ops;
 
 	nlh = NLMSG_NEW(skb, pid, seq, event, sizeof(*tcm), flags);
 	tcm = NLMSG_DATA(nlh);