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net_sched: introduce qdisc_replace() helper
[firefly-linux-kernel-4.4.55.git]
/
net
/
sched
/
sch_drr.c
diff --git
a/net/sched/sch_drr.c
b/net/sched/sch_drr.c
index f26bdea875c1a8413774e767bb897012d969d2e6..c76cdd423b6fed40f8a09b12b8aa2e53f4bba761 100644
(file)
--- a/
net/sched/sch_drr.c
+++ b/
net/sched/sch_drr.c
@@
-226,11
+226,7
@@
static int drr_graft_class(struct Qdisc *sch, unsigned long arg,
new = &noop_qdisc;
}
- sch_tree_lock(sch);
- drr_purge_queue(cl);
- *old = cl->qdisc;
- cl->qdisc = new;
- sch_tree_unlock(sch);
+ *old = qdisc_replace(sch, new, &cl->qdisc);
return 0;
}