[PATCH AUTOSEL 5.10 09/33] net: correct sk_acceptq_is_full()
From: Sasha Levin <sashal@kernel.org>
Date: 2021-03-29 22:24:57
Also in:
lkml, stable
Subsystem:
networking [general], networking [sockets], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Willem de Bruijn, Linus Torvalds
From: liuyacan <redacted> [ Upstream commit f211ac154577ec9ccf07c15f18a6abf0d9bdb4ab ] The "backlog" argument in listen() specifies the maximom length of pending connections, so the accept queue should be considered full if there are exactly "backlog" elements. Signed-off-by: liuyacan <redacted> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- include/net/sock.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/sock.h b/include/net/sock.h
index 253202dcc5e6..8cdc009d7636 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h@@ -930,7 +930,7 @@ static inline void sk_acceptq_added(struct sock *sk) static inline bool sk_acceptq_is_full(const struct sock *sk) { - return READ_ONCE(sk->sk_ack_backlog) > READ_ONCE(sk->sk_max_ack_backlog); + return READ_ONCE(sk->sk_ack_backlog) >= READ_ONCE(sk->sk_max_ack_backlog); } /*
--
2.30.1