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tcp/dccp: add inet_csk_reqsk_queue_drop_and_put() helper

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Let's reduce the confusion about inet_csk_reqsk_queue_drop() :
In many cases we also need to release reference on request socket,
so add a helper to do this, reducing code size and complexity.

Fixes: 4bdc3d6614 ("tcp/dccp: fix behavior of stale SYN_RECV request sockets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2015-10-14 11:16:27 -07:00
committed by David S. Miller
parent ef84d8ce5a
commit f03f2e154f
6 changed files with 13 additions and 6 deletions
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2
net/ipv4/tcp_ipv4.c
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@@ -1591,7 +1591,7 @@ process:
if (likely(sk->sk_state == TCP_LISTEN)) {
nsk = tcp_check_req(sk, skb, req, false);
} else {
inet_csk_reqsk_queue_drop(sk, req);
inet_csk_reqsk_queue_drop_and_put(sk, req);
goto lookup;
}
if (!nsk) {