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pkt_sched: Remove qdisc->ops->requeue() etc.

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After implementing qdisc->ops->peek() and changing sch_netem into
classless qdisc there are no more qdisc->ops->requeue() users. This
patch removes this method with its wrappers (qdisc_requeue()), and
also unused qdisc->requeue structure. There are a few minor fixes of
warnings (htb_enqueue()) and comments btw.

The idea to kill ->requeue() and a similar patch were first developed
by David S. Miller.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarek Poplawski
2008-11-13 22:56:30 -08:00
committed by David S. Miller
parent 38a7ddffa4
commit f30ab418a1
17 changed files with 4 additions and 394 deletions
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19
net/sched/sch_hfsc.c
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@@ -184,7 +184,6 @@ struct hfsc_sched
struct rb_root eligible; /* eligible tree */
struct list_head droplist; /* active leaf class list (for
dropping) */
struct sk_buff_head requeue; /* requeued packet */
struct qdisc_watchdog watchdog; /* watchdog timer */
};
@@ -1432,7 +1431,6 @@ hfsc_init_qdisc(struct Qdisc *sch, struct nlattr *opt)
return err;
q->eligible = RB_ROOT;
INIT_LIST_HEAD(&q->droplist);
skb_queue_head_init(&q->requeue);
q->root.cl_common.classid = sch->handle;
q->root.refcnt = 1;
@@ -1517,7 +1515,6 @@ hfsc_reset_qdisc(struct Qdisc *sch)
hlist_for_each_entry(cl, n, &q->clhash.hash[i], cl_common.hnode)
hfsc_reset_class(cl);
}
__skb_queue_purge(&q->requeue);
q->eligible = RB_ROOT;
INIT_LIST_HEAD(&q->droplist);
qdisc_watchdog_cancel(&q->watchdog);
@@ -1542,7 +1539,6 @@ hfsc_destroy_qdisc(struct Qdisc *sch)
hfsc_destroy_class(sch, cl);
}
qdisc_class_hash_destroy(&q->clhash);
__skb_queue_purge(&q->requeue);
qdisc_watchdog_cancel(&q->watchdog);
}
@@ -1609,8 +1605,6 @@ hfsc_dequeue(struct Qdisc *sch)
if (sch->q.qlen == 0)
return NULL;
if ((skb = __skb_dequeue(&q->requeue)))
goto out;
cur_time = psched_get_time();
@@ -1659,24 +1653,12 @@ hfsc_dequeue(struct Qdisc *sch)
set_passive(cl);
}
out:
sch->flags &= ~TCQ_F_THROTTLED;
sch->q.qlen--;
return skb;
}
static int
hfsc_requeue(struct sk_buff *skb, struct Qdisc *sch)
{
struct hfsc_sched *q = qdisc_priv(sch);
__skb_queue_head(&q->requeue, skb);
sch->q.qlen++;
sch->qstats.requeues++;
return NET_XMIT_SUCCESS;
}
static unsigned int
hfsc_drop(struct Qdisc *sch)
{
@@ -1728,7 +1710,6 @@ static struct Qdisc_ops hfsc_qdisc_ops __read_mostly = {
.enqueue = hfsc_enqueue,
.dequeue = hfsc_dequeue,
.peek = qdisc_peek_dequeued,
.requeue = hfsc_requeue,
.drop = hfsc_drop,
.cl_ops = &hfsc_class_ops,
.priv_size = sizeof(struct hfsc_sched),