net_sched: introduce qdisc_replace() helper

Remove nearly duplicated code and prepare for the following patch.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WANG Cong
2016-02-25 14:55:00 -08:00
committed by David S. Miller
parent f12d33f4d8
commit 86a7996cc8
13 changed files with 29 additions and 78 deletions

View File

@@ -617,11 +617,7 @@ static int qfq_graft_class(struct Qdisc *sch, unsigned long arg,
new = &noop_qdisc;
}
sch_tree_lock(sch);
qfq_purge_queue(cl);
*old = cl->qdisc;
cl->qdisc = new;
sch_tree_unlock(sch);
*old = qdisc_replace(sch, new, &cl->qdisc);
return 0;
}