diff options
| -rw-r--r-- | include/net/inet_frag.h | 4 | ||||
| -rw-r--r-- | net/ieee802154/6lowpan/reassembly.c | 1 | ||||
| -rw-r--r-- | net/ipv4/inet_fragment.c | 44 | ||||
| -rw-r--r-- | net/ipv4/ip_fragment.c | 2 | ||||
| -rw-r--r-- | net/ipv6/netfilter/nf_conntrack_reasm.c | 1 | ||||
| -rw-r--r-- | net/ipv6/reassembly.c | 1 |
6 files changed, 14 insertions, 39 deletions
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h index b02bf737d019..378904ee9129 100644 --- a/include/net/inet_frag.h +++ b/include/net/inet_frag.h @@ -56,7 +56,6 @@ struct frag_v6_compare_key { * @timer: queue expiration timer * @lock: spinlock protecting this frag * @refcnt: reference count of the queue - * @fragments: received fragments head * @rb_fragments: received fragments rb-tree root * @fragments_tail: received fragments tail * @last_run_head: the head of the last "run". see ip_fragment.c @@ -77,8 +76,7 @@ struct inet_frag_queue { struct timer_list timer; spinlock_t lock; refcount_t refcnt; - struct sk_buff *fragments; /* used in 6lopwpan IPv6. */ - struct rb_root rb_fragments; /* Used in IPv4/IPv6. */ + struct rb_root rb_fragments; struct sk_buff *fragments_tail; struct sk_buff *last_run_head; ktime_t stamp; diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c index bd61633d2c32..4196bcd4105a 100644 --- a/net/ieee802154/6lowpan/reassembly.c +++ b/net/ieee802154/6lowpan/reassembly.c @@ -179,7 +179,6 @@ static int lowpan_frag_reasm(struct lowpan_frag_queue *fq, struct sk_buff *skb, skb->dev = ldev; skb->tstamp = fq->q.stamp; - fq->q.fragments = NULL; fq->q.rb_fragments = RB_ROOT; fq->q.fragments_tail = NULL; fq->q.last_run_head = NULL; diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index 9f69411251d0..737808e27f8b 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -203,7 +203,6 @@ EXPORT_SYMBOL(inet_frag_rbtree_purge); void inet_frag_destroy(struct inet_frag_queue *q) { - struct sk_buff *fp; struct netns_frags *nf; unsigned int sum, sum_truesize = 0; struct inet_frags *f; @@ -212,20 +211,9 @@ void inet_frag_destroy(struct inet_frag_queue *q) WARN_ON(del_timer(&q->timer) != 0); /* Release all fragment data. */ - fp = q->fragments; nf = q->net; f = nf->f; - if (fp) { - do { - struct sk_buff *xp = fp->next; - - sum_truesize += fp->truesize; - kfree_skb(fp); - fp = xp; - } while (fp); - } else { - sum_truesize = inet_frag_rbtree_purge(&q->rb_fragments); - } + sum_truesize = inet_frag_rbtree_purge(&q->rb_fragments); sum = sum_truesize + f->qsize; call_rcu(&q->rcu, inet_frag_destroy_rcu); @@ -489,26 +477,20 @@ EXPORT_SYMBOL(inet_frag_reasm_finish); struct sk_buff *inet_frag_pull_head(struct inet_frag_queue *q) { - struct sk_buff *head; + struct sk_buff *head, *skb; - if (q->fragments) { - head = q->fragments; - q->fragments = head->next; - } else { - struct sk_buff *skb; + head = skb_rb_first(&q->rb_fragments); + if (!head) + return NULL; + skb = FRAG_CB(head)->next_frag; + if (skb) + rb_replace_node(&head->rbnode, &skb->rbnode, + &q->rb_fragments); + else + rb_erase(&head->rbnode, &q->rb_fragments); + memset(&head->rbnode, 0, sizeof(head->rbnode)); + barrier(); - head = skb_rb_first(&q->rb_fragments); - if (!head) - return NULL; - skb = FRAG_CB(head)->next_frag; - if (skb) - rb_replace_node(&head->rbnode, &skb->rbnode, - &q->rb_fragments); - else - rb_erase(&head->rbnode, &q->rb_fragments); - memset(&head->rbnode, 0, sizeof(head->rbnode)); - barrier(); - } if (head == q->fragments_tail) q->fragments_tail = NULL; diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 486ecb0aeb87..cf2b0a6a3337 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -261,7 +261,6 @@ static int ip_frag_reinit(struct ipq *qp) qp->q.flags = 0; qp->q.len = 0; qp->q.meat = 0; - qp->q.fragments = NULL; qp->q.rb_fragments = RB_ROOT; qp->q.fragments_tail = NULL; qp->q.last_run_head = NULL; @@ -451,7 +450,6 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb, ip_send_check(iph); __IP_INC_STATS(net, IPSTATS_MIB_REASMOKS); - qp->q.fragments = NULL; qp->q.rb_fragments = RB_ROOT; qp->q.fragments_tail = NULL; qp->q.last_run_head = NULL; diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index cb1b4772dac0..3de0e9b0a482 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -365,7 +365,6 @@ static int nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *skb, skb_network_header_len(skb), skb->csum); - fq->q.fragments = NULL; fq->q.rb_fragments = RB_ROOT; fq->q.fragments_tail = NULL; fq->q.last_run_head = NULL; diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 24264d0a4b85..1a832f5e190b 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -304,7 +304,6 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb, rcu_read_lock(); __IP6_INC_STATS(net, __in6_dev_get(dev), IPSTATS_MIB_REASMOKS); rcu_read_unlock(); - fq->q.fragments = NULL; fq->q.rb_fragments = RB_ROOT; fq->q.fragments_tail = NULL; fq->q.last_run_head = NULL; |