Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / net / sched / sch_hfsc.c

diff --git a/kernel/net/sched/sch_hfsc.c b/kernel/net/sched/sch_hfsc.c
index b7ebe2c..d783d7c 100644 (file)
--- a/kernel/net/sched/sch_hfsc.c
+++ b/kernel/net/sched/sch_hfsc.c
@@ -895,9 +895,10 @@ static void
 hfsc_purge_queue(struct Qdisc *sch, struct hfsc_class *cl)
 {
        unsigned int len = cl->qdisc->q.qlen;
+       unsigned int backlog = cl->qdisc->qstats.backlog;
 
        qdisc_reset(cl->qdisc);
-       qdisc_tree_decrease_qlen(cl->qdisc, len);
+       qdisc_tree_reduce_backlog(cl->qdisc, len, backlog);
 }
 
 static void
@@ -1215,11 +1216,7 @@ hfsc_graft_class(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
                        new = &noop_qdisc;
        }
 
-       sch_tree_lock(sch);
-       hfsc_purge_queue(sch, cl);
-       *old = cl->qdisc;
-       cl->qdisc = new;
-       sch_tree_unlock(sch);
+       *old = qdisc_replace(sch, new, &cl->qdisc);
        return 0;
 }