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authorPatrick McHardy <kaber@trash.net>2006-11-29 17:36:20 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-02 21:31:43 -0800
commit5e50da01d0ce7ef0ba3ed6cfabd62f327da0aca6 (patch)
tree6f2205ceae40a7fd5b498e94c60b65140740a027 /net/sched/sch_red.c
parent43effa1e57fc4635e0301b27d78f9d83afe78974 (diff)
[NET_SCHED]: Fix endless loops (part 2): "simple" qdiscs
Convert the "simple" qdiscs to use qdisc_tree_decrease_qlen() where necessary: - all graft operations - destruction of old child qdiscs in prio, red and tbf change operation - purging of queue in sfq change operation Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_red.c')
-rw-r--r--net/sched/sch_red.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index ee66c5ca80c..acddad08850 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -229,8 +229,10 @@ static int red_change(struct Qdisc *sch, struct rtattr *opt)
sch_tree_lock(sch);
q->flags = ctl->flags;
q->limit = ctl->limit;
- if (child)
+ if (child) {
+ qdisc_tree_decrease_qlen(q->qdisc, q->qdisc->q.qlen);
qdisc_destroy(xchg(&q->qdisc, child));
+ }
red_set_parms(&q->parms, ctl->qth_min, ctl->qth_max, ctl->Wlog,
ctl->Plog, ctl->Scell_log,
@@ -308,8 +310,8 @@ static int red_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
sch_tree_lock(sch);
*old = xchg(&q->qdisc, new);
+ qdisc_tree_decrease_qlen(*old, (*old)->q.qlen);
qdisc_reset(*old);
- sch->q.qlen = 0;
sch_tree_unlock(sch);
return 0;
}