net_sched: introduce qdisc_replace() helper

[mirror_ubuntu-zesty-kernel.git] / net / sched / sch_red.c

diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 6c0534cc77582881fecb7b9276659f6d921e6daa..d5abcee454d8c12ee960853668695550f5b458ba 100644 (file)
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -313,12 +313,7 @@ static int red_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
        if (new == NULL)
                new = &noop_qdisc;
 
-       sch_tree_lock(sch);
-       *old = q->qdisc;
-       q->qdisc = new;
-       qdisc_tree_decrease_qlen(*old, (*old)->q.qlen);
-       qdisc_reset(*old);
-       sch_tree_unlock(sch);
+       *old = qdisc_replace(sch, new, &q->qdisc);
        return 0;
 }