From 814a175e7b1531a4bcaa63be47bf58cacdcb5010 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Wed, 29 Nov 2006 17:34:50 -0800 Subject: [PATCH] [NET_SCHED]: sch_htb: perform qlen adjustment immediately in ->delete qlen adjustment should happen immediately in ->delete and not in the class destroy function because the reference count will not hit zero in ->delete (sch_api holds a reference) but in ->put. Since the qdisc lock is released between deletion of the class and final destruction this creates an externally visible error in the qlen counter. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/sched/sch_htb.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c index 4b52fa78935a..08fa4d083615 100644 --- a/net/sched/sch_htb.c +++ b/net/sched/sch_htb.c @@ -1269,9 +1269,9 @@ static void htb_destroy_filters(struct tcf_proto **fl) static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl) { struct htb_sched *q = qdisc_priv(sch); + if (!cl->level) { BUG_TRAP(cl->un.leaf.q); - sch->q.qlen -= cl->un.leaf.q->q.qlen; qdisc_destroy(cl->un.leaf.q); } qdisc_put_rtab(cl->rate); @@ -1334,6 +1334,11 @@ static int htb_delete(struct Qdisc *sch, unsigned long arg) /* delete from hash and active; remainder in destroy_class */ hlist_del_init(&cl->hlist); + if (!cl->level) { + sch->q.qlen -= cl->un.leaf.q->q.qlen; + qdisc_reset(cl->un.leaf.q); + } + if (cl->prio_activity) htb_deactivate(q, cl); -- 2.39.5