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-rw-r--r--include/net/tcp.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 88e63d64c698..35f6f7e0fdc2 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1380,7 +1380,8 @@ static inline int tcp_win_from_space(const struct sock *sk, int space)
/* Note: caller must be prepared to deal with negative returns */
static inline int tcp_space(const struct sock *sk)
{
- return tcp_win_from_space(sk, sk->sk_rcvbuf - sk->sk_backlog.len -
+ return tcp_win_from_space(sk, sk->sk_rcvbuf -
+ READ_ONCE(sk->sk_backlog.len) -
atomic_read(&sk->sk_rmem_alloc));
}