Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[karo-tx-linux.git] / net / ipv4 / tcp.c

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index b2f6c74861af6d8e1209c65823bef34f806609c2..4e42c03859f46e9b8067494710b3db71bf803593 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -410,10 +410,6 @@ void tcp_init_sock(struct sock *sk)
 
        icsk->icsk_sync_mss = tcp_sync_mss;
 
-       /* Presumed zeroed, in order of appearance:
-        *      cookie_in_always, cookie_out_never,
-        *      s_data_constant, s_data_in, s_data_out
-        */
        sk->sk_sndbuf = sysctl_tcp_wmem[1];
        sk->sk_rcvbuf = sysctl_tcp_rmem[1];
 
@@ -499,7 +495,7 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
                        mask |= POLLIN | POLLRDNORM;
 
                if (!(sk->sk_shutdown & SEND_SHUTDOWN)) {
-                       if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)) {
+                       if (sk_stream_is_writeable(sk)) {
                                mask |= POLLOUT | POLLWRNORM;
                        } else {  /* send SIGIO later */
                                set_bit(SOCK_ASYNC_NOSPACE,
@@ -510,7 +506,7 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
                                 * wspace test but before the flags are set,
                                 * IO signal will be lost.
                                 */
-                               if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk))
+                               if (sk_stream_is_writeable(sk))
                                        mask |= POLLOUT | POLLWRNORM;
                        }
                } else
@@ -2638,6 +2634,10 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
                else
                        tp->tsoffset = val - tcp_time_stamp;
                break;
+       case TCP_NOTSENT_LOWAT:
+               tp->notsent_lowat = val;
+               sk->sk_write_space(sk);
+               break;
        default:
                err = -ENOPROTOOPT;
                break;
@@ -2854,6 +2854,9 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
        case TCP_TIMESTAMP:
                val = tcp_time_stamp + tp->tsoffset;
                break;
+       case TCP_NOTSENT_LOWAT:
+               val = tp->notsent_lowat;
+               break;
        default:
                return -ENOPROTOOPT;
        }