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authorEric Dumazet <edumazet@google.com>2017-10-05 22:21:21 -0700
committerDavid S. Miller <davem@davemloft.net>2017-10-07 00:28:53 +0100
commit18a4c0eab2623cc95be98a1e6af1ad18e7695977 (patch)
tree3523990ac022ba7e4fd89f1aa0521315d10d95ac /net/ipv4/tcp_fastopen.c
parentMerge branch '40GbE' of ra.kernel.org:/pub/scm/linux/kernel/git/jkirsher/next-queue (diff)
downloadwireguard-linux-18a4c0eab2623cc95be98a1e6af1ad18e7695977.tar.xz
wireguard-linux-18a4c0eab2623cc95be98a1e6af1ad18e7695977.zip
net: add rb_to_skb() and other rb tree helpers
Geeralize private netem_rb_to_skb() TCP rtx queue will soon be converted to rb-tree, so we will need skb_rbtree_walk() helpers. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_fastopen.c')
-rw-r--r--net/ipv4/tcp_fastopen.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 29fff14d5a53..7ee4aadcdd71 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -465,17 +465,15 @@ bool tcp_fastopen_active_should_disable(struct sock *sk)
void tcp_fastopen_active_disable_ofo_check(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
- struct rb_node *p;
- struct sk_buff *skb;
struct dst_entry *dst;
+ struct sk_buff *skb;
if (!tp->syn_fastopen)
return;
if (!tp->data_segs_in) {
- p = rb_first(&tp->out_of_order_queue);
- if (p && !rb_next(p)) {
- skb = rb_entry(p, struct sk_buff, rbnode);
+ skb = skb_rb_first(&tp->out_of_order_queue);
+ if (skb && !skb_rb_next(skb)) {
if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN) {
tcp_fastopen_active_disable(sk);
return;