tcp: uninline tcp_write_queue_purge()

Since the upcoming rtx rbtree will add some extra code,
it is time to not inline this fat function anymore.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 8cf742fd4f99..f8ebae62f834 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2318,6 +2318,20 @@ static inline bool tcp_need_reset(int state)
                 TCPF_FIN_WAIT2 | TCPF_SYN_RECV);
 }
 
+void tcp_write_queue_purge(struct sock *sk)
+{
+        struct sk_buff *skb;
+
+        tcp_chrono_stop(sk, TCP_CHRONO_BUSY);
+        while ((skb = __skb_dequeue(&sk->sk_write_queue)) != NULL) {
+                tcp_skb_tsorted_anchor_cleanup(skb);
+                sk_wmem_free_skb(sk, skb);
+        }
+        INIT_LIST_HEAD(&tcp_sk(sk)->tsorted_sent_queue);
+        sk_mem_reclaim(sk);
+        tcp_clear_all_retrans_hints(tcp_sk(sk));
+}
+
 int tcp_disconnect(struct sock *sk, int flags)
 {
         struct inet_sock *inet = inet_sk(sk);