[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_sfq.c b/net/sched/sch_sfq.c
index 6529387..c58fa6e 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -480,7 +480,7 @@
 	return -1;
 }
 
-static struct Qdisc_ops sfq_qdisc_ops = {
+static struct Qdisc_ops sfq_qdisc_ops __read_mostly = {
 	.next		=	NULL,
 	.cl_ops		=	NULL,
 	.id		=	"sfq",