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net: Add and use skb_mark_not_on_list().

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An SKB is not on a list if skb->next is NULL.

Codify this convention into a helper function and use it
where we are dequeueing an SKB and need to mark it as such.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2018-07-29 20:42:53 -07:00
parent 776f07ee30
commit a8305bff68
22 changed files with 33 additions and 28 deletions
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2
net/ipv6/ip6_output.c
View File

@@ -727,7 +727,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
skb = frag;
frag = skb->next;
skb->next = NULL;
skb_mark_not_on_list(skb);
}
kfree(tmp_hdr);

2
net/ipv6/netfilter/nf_conntrack_reasm.c
View File

@@ -449,7 +449,7 @@ nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *prev, struct net_devic
sub_frag_mem_limit(fq->q.net, head->truesize);
head->ignore_df = 1;
head->next = NULL;
skb_mark_not_on_list(head);
head->dev = dev;
head->tstamp = fq->q.stamp;
ipv6_hdr(head)->payload_len = htons(payload_len);

2
net/ipv6/reassembly.c
View File

@@ -388,7 +388,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
}
sub_frag_mem_limit(fq->q.net, sum_truesize);
head->next = NULL;
skb_mark_not_on_list(head);
head->dev = dev;
head->tstamp = fq->q.stamp;
ipv6_hdr(head)->payload_len = htons(payload_len);