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tcp/dccp: complete lockless accesses to sk->sk_max_ack_backlog

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[ Upstream commit 9a79c65f00e2b036e17af3a3a607d7d732b7affb ]

Since commit 099ecf59f05b ("net: annotate lockless accesses to
sk->sk_max_ack_backlog") decided to handle the sk_max_ack_backlog
locklessly, there is one more function mostly called in TCP/DCCP
cases. So this patch completes it:)

Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240331090521.71965-1-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 3479c7549fb1 ("tcp/dccp: allow a connection when sk_max_ack_backlog is zero")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jason Xing
2024-03-31 17:05:21 +08:00
committed by Greg Kroah-Hartman
parent 0f25193e53
commit 736fe12ce6
1 changed files with 1 additions and 1 deletions
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2
include/net/inet_connection_sock.h
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@@ -285,7 +285,7 @@ static inline int inet_csk_reqsk_queue_len(const struct sock *sk)
static inline int inet_csk_reqsk_queue_is_full(const struct sock *sk)
{
return inet_csk_reqsk_queue_len(sk) >= sk->sk_max_ack_backlog;
return inet_csk_reqsk_queue_len(sk) >= READ_ONCE(sk->sk_max_ack_backlog);
}
bool inet_csk_reqsk_queue_drop(struct sock *sk, struct request_sock *req);