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authorEric Dumazet <edumazet@google.com>2016-06-13 20:21:53 -0700
committerDavid S. Miller <davem@davemloft.net>2016-06-15 14:08:35 -0700
commite14ffdfdd67a9eba36bd76af0df1f2ac363ae906 (patch)
tree93c7de586399a300028f081ae902bc0ee6ccea20 /net/sched/sch_fq.c
parentnet_sched: sch_codel: defer skb freeing in codel_change() (diff)
downloadlinux-dev-e14ffdfdd67a9eba36bd76af0df1f2ac363ae906.tar.xz
linux-dev-e14ffdfdd67a9eba36bd76af0df1f2ac363ae906.zip
net_sched: sch_fq: defer skb freeing
Both fq_change() and fq_reset() can use rtnl_kfree_skbs() Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_fq.c')
-rw-r--r--net/sched/sch_fq.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index f49c81e91acd..6eb06674f778 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -514,17 +514,25 @@ out:
return skb;
}
+static void fq_flow_purge(struct fq_flow *flow)
+{
+ rtnl_kfree_skbs(flow->head, flow->tail);
+ flow->head = NULL;
+ flow->qlen = 0;
+}
+
static void fq_reset(struct Qdisc *sch)
{
struct fq_sched_data *q = qdisc_priv(sch);
struct rb_root *root;
- struct sk_buff *skb;
struct rb_node *p;
struct fq_flow *f;
unsigned int idx;
- while ((skb = fq_dequeue_head(sch, &q->internal)) != NULL)
- kfree_skb(skb);
+ sch->q.qlen = 0;
+ sch->qstats.backlog = 0;
+
+ fq_flow_purge(&q->internal);
if (!q->fq_root)
return;
@@ -535,8 +543,7 @@ static void fq_reset(struct Qdisc *sch)
f = container_of(p, struct fq_flow, fq_node);
rb_erase(p, root);
- while ((skb = fq_dequeue_head(sch, f)) != NULL)
- kfree_skb(skb);
+ fq_flow_purge(f);
kmem_cache_free(fq_flow_cachep, f);
}
@@ -737,7 +744,7 @@ static int fq_change(struct Qdisc *sch, struct nlattr *opt)
if (!skb)
break;
drop_len += qdisc_pkt_len(skb);
- kfree_skb(skb);
+ rtnl_kfree_skbs(skb, skb);
drop_count++;
}
qdisc_tree_reduce_backlog(sch, drop_count, drop_len);