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authorDavid S. Miller <davem@davemloft.net>2018-07-29 16:22:13 -0700
committerDavid S. Miller <davem@davemloft.net>2018-09-10 10:06:52 -0700
commitaea890b8b2e071bb75043353581f2197a2f13160 (patch)
treeb37f76eff482d97d50dc9ecc1a82ca0129eaf58e
parent0153167aebd0808fb90031dba07d4e696557474c (diff)
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sch_htb: Remove local SKB queue handling code.
Instead, adjust __qdisc_enqueue_tail() such that HTB can use it instead. The only other caller of __qdisc_enqueue_tail() is qdisc_enqueue_tail() so we can move the backlog and return value handling (which HTB doesn't need/want) to the latter. Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/sch_generic.h11
-rw-r--r--net/sched/sch_htb.c18
2 files changed, 6 insertions, 23 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index a6d00093f35e..bc8f6b0b6610 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -828,8 +828,8 @@ static inline void qdisc_skb_head_init(struct qdisc_skb_head *qh)
qh->qlen = 0;
}
-static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
- struct qdisc_skb_head *qh)
+static inline void __qdisc_enqueue_tail(struct sk_buff *skb,
+ struct qdisc_skb_head *qh)
{
struct sk_buff *last = qh->tail;
@@ -842,14 +842,13 @@ static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
qh->head = skb;
}
qh->qlen++;
- qdisc_qstats_backlog_inc(sch, skb);
-
- return NET_XMIT_SUCCESS;
}
static inline int qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch)
{
- return __qdisc_enqueue_tail(skb, sch, &sch->q);
+ __qdisc_enqueue_tail(skb, &sch->q);
+ qdisc_qstats_backlog_inc(sch, skb);
+ return NET_XMIT_SUCCESS;
}
static inline struct sk_buff *__qdisc_dequeue_head(struct qdisc_skb_head *qh)
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 43c4bfe625a9..cf23829cbede 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -577,22 +577,6 @@ static inline void htb_deactivate(struct htb_sched *q, struct htb_class *cl)
cl->prio_activity = 0;
}
-static void htb_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
- struct qdisc_skb_head *qh)
-{
- struct sk_buff *last = qh->tail;
-
- if (last) {
- skb->next = NULL;
- last->next = skb;
- qh->tail = skb;
- } else {
- qh->tail = skb;
- qh->head = skb;
- }
- qh->qlen++;
-}
-
static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch,
struct sk_buff **to_free)
{
@@ -603,7 +587,7 @@ static int htb_enqueue(struct sk_buff *skb, struct Qdisc *sch,
if (cl == HTB_DIRECT) {
/* enqueue to helper queue */
if (q->direct_queue.qlen < q->direct_qlen) {
- htb_enqueue_tail(skb, sch, &q->direct_queue);
+ __qdisc_enqueue_tail(skb, &q->direct_queue);
q->direct_pkts++;
} else {
return qdisc_drop(skb, sch, to_free);