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Message-Id: <20210311163225.5900-1-yacanliu@163.com>
Date: Fri, 12 Mar 2021 00:32:25 +0800
From: yacanliu@....com
To: davem@...emloft.net, kuba@...nel.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
liuyacan <yacanliu@....com>
Subject: [PATCH] net: correct sk_acceptq_is_full()
From: liuyacan <yacanliu@....com>
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@....com>
---
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 636810ddcd9b..0b6266fd6bf6 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);
}
/*
--
2.25.1
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