diff options
| -rw-r--r-- | include/linux/rtnetlink.h | 5 | ||||
| -rw-r--r-- | include/net/sch_generic.h | 16 | ||||
| -rw-r--r-- | net/core/rtnetlink.c | 22 | ||||
| -rw-r--r-- | net/sched/sch_generic.c | 2 |
4 files changed, 38 insertions, 7 deletions
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h index c006cc900c44..2daece8979f7 100644 --- a/include/linux/rtnetlink.h +++ b/include/linux/rtnetlink.h @@ -89,8 +89,9 @@ void net_inc_egress_queue(void); void net_dec_egress_queue(void); #endif -extern void rtnetlink_init(void); -extern void __rtnl_unlock(void); +void rtnetlink_init(void); +void __rtnl_unlock(void); +void rtnl_kfree_skbs(struct sk_buff *head, struct sk_buff *tail); #define ASSERT_RTNL() do { \ if (unlikely(!rtnl_is_locked())) { \ diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 9a0d177884c6..4f7cee8344c4 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -683,19 +683,21 @@ static inline struct sk_buff *qdisc_dequeue_peeked(struct Qdisc *sch) return skb; } -static inline void __qdisc_reset_queue(struct Qdisc *sch, - struct sk_buff_head *list) +static inline void __qdisc_reset_queue(struct sk_buff_head *list) { /* * We do not know the backlog in bytes of this list, it * is up to the caller to correct it */ - __skb_queue_purge(list); + if (!skb_queue_empty(list)) { + rtnl_kfree_skbs(list->next, list->prev); + __skb_queue_head_init(list); + } } static inline void qdisc_reset_queue(struct Qdisc *sch) { - __qdisc_reset_queue(sch, &sch->q); + __qdisc_reset_queue(&sch->q); sch->qstats.backlog = 0; } @@ -716,6 +718,12 @@ static inline struct Qdisc *qdisc_replace(struct Qdisc *sch, struct Qdisc *new, return old; } +static inline void rtnl_qdisc_drop(struct sk_buff *skb, struct Qdisc *sch) +{ + rtnl_kfree_skbs(skb, skb); + qdisc_qstats_drop(sch); +} + static inline int qdisc_drop(struct sk_buff *skb, struct Qdisc *sch) { kfree_skb(skb); diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index d69c4644f8f2..eb49ca24274a 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -71,9 +71,31 @@ void rtnl_lock(void) } EXPORT_SYMBOL(rtnl_lock); +static struct sk_buff *defer_kfree_skb_list; +void rtnl_kfree_skbs(struct sk_buff *head, struct sk_buff *tail) +{ + if (head && tail) { + tail->next = defer_kfree_skb_list; + defer_kfree_skb_list = head; + } +} +EXPORT_SYMBOL(rtnl_kfree_skbs); + void __rtnl_unlock(void) { + struct sk_buff *head = defer_kfree_skb_list; + + defer_kfree_skb_list = NULL; + mutex_unlock(&rtnl_mutex); + + while (head) { + struct sk_buff *next = head->next; + + kfree_skb(head); + cond_resched(); + head = next; + } } void rtnl_unlock(void) diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 0c9cb516f2e3..773b632e1e33 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -493,7 +493,7 @@ static void pfifo_fast_reset(struct Qdisc *qdisc) struct pfifo_fast_priv *priv = qdisc_priv(qdisc); for (prio = 0; prio < PFIFO_FAST_BANDS; prio++) - __qdisc_reset_queue(qdisc, band2list(priv, prio)); + __qdisc_reset_queue(band2list(priv, prio)); priv->bitmap = 0; qdisc->qstats.backlog = 0; |