diff options
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 3658ad84f0c6..50834e7f958e 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5332,12 +5332,6 @@ static bool tcp_should_expand_sndbuf(const struct sock *sk) return true; } -/* When incoming ACK allowed to free some skb from write_queue, - * we remember this event in flag SOCK_QUEUE_SHRUNK and wake up socket - * on the exit from tcp input handler. - * - * PROBLEM: sndbuf expansion does not work well with largesend. - */ static void tcp_new_space(struct sock *sk) { struct tcp_sock *tp = tcp_sk(sk); @@ -5352,16 +5346,13 @@ static void tcp_new_space(struct sock *sk) static void tcp_check_space(struct sock *sk) { - if (sock_flag(sk, SOCK_QUEUE_SHRUNK)) { - sock_reset_flag(sk, SOCK_QUEUE_SHRUNK); - /* pairs with tcp_poll() */ - smp_mb(); - if (sk->sk_socket && - test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) { - tcp_new_space(sk); - if (!test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) - tcp_chrono_stop(sk, TCP_CHRONO_SNDBUF_LIMITED); - } + /* pairs with tcp_poll() */ + smp_mb(); + if (sk->sk_socket && + test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) { + tcp_new_space(sk); + if (!test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) + tcp_chrono_stop(sk, TCP_CHRONO_SNDBUF_LIMITED); } } |