[PATCH AUTOSEL 5.11 10/38] net: correct sk_acceptq_is_full()

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From: liuyacan <yacanliu@xxxxxxx>

[ 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 <yacanliu@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 129d200bccb4..a95f38a4b8c6 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -936,7 +936,7 @@ 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




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