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net_sched: introduce qdisc_replace() helper
[firefly-linux-kernel-4.4.55.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;
}