Merge branch 'fix/asoc' into for-linus

[firefly-linux-kernel-4.4.55.git] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 3357f69e353d445b51c3178899609245b6720404..6d8ab1c4efc3ea59c4848c74ae367f872cd6505e 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -259,8 +259,11 @@ static void tcp_fixup_sndbuf(struct sock *sk)
        int sndmem = tcp_sk(sk)->rx_opt.mss_clamp + MAX_TCP_HEADER + 16 +
                     sizeof(struct sk_buff);
 
-       if (sk->sk_sndbuf < 3 * sndmem)
-               sk->sk_sndbuf = min(3 * sndmem, sysctl_tcp_wmem[2]);
+       if (sk->sk_sndbuf < 3 * sndmem) {
+               sk->sk_sndbuf = 3 * sndmem;
+               if (sk->sk_sndbuf > sysctl_tcp_wmem[2])
+                       sk->sk_sndbuf = sysctl_tcp_wmem[2];
+       }
 }
 
 /* 2. Tuning advertised window (window_clamp, rcv_ssthresh)
@@ -396,7 +399,7 @@ static void tcp_clamp_window(struct sock *sk)
        if (sk->sk_rcvbuf < sysctl_tcp_rmem[2] &&
            !(sk->sk_userlocks & SOCK_RCVBUF_LOCK) &&
            !tcp_memory_pressure &&
-           atomic_read(&tcp_memory_allocated) < sysctl_tcp_mem[0]) {
+           atomic_long_read(&tcp_memory_allocated) < sysctl_tcp_mem[0]) {
                sk->sk_rcvbuf = min(atomic_read(&sk->sk_rmem_alloc),
                                    sysctl_tcp_rmem[2]);
        }
@@ -4861,7 +4864,7 @@ static int tcp_should_expand_sndbuf(struct sock *sk)
                return 0;
 
        /* If we are under soft global TCP memory pressure, do not expand.  */
-       if (atomic_read(&tcp_memory_allocated) >= sysctl_tcp_mem[0])
+       if (atomic_long_read(&tcp_memory_allocated) >= sysctl_tcp_mem[0])
                return 0;
 
        /* If we filled the congestion window, do not expand.  */