Merge branch 'ieee1394-removal' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / net / ipv4 / tcp.c

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 3fb1428..1664a05 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -386,8 +386,6 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
         */
 
        mask = 0;
-       if (sk->sk_err)
-               mask = POLLERR;
 
        /*
         * POLLHUP is certainly not done right. But poll() doesn't
@@ -457,6 +455,11 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait)
                if (tp->urg_data & TCP_URG_VALID)
                        mask |= POLLPRI;
        }
+       /* This barrier is coupled with smp_wmb() in tcp_reset() */
+       smp_rmb();
+       if (sk->sk_err)
+               mask |= POLLERR;
+
        return mask;
 }
 EXPORT_SYMBOL(tcp_poll);
@@ -940,7 +943,7 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
        sg = sk->sk_route_caps & NETIF_F_SG;
 
        while (--iovlen >= 0) {
-               int seglen = iov->iov_len;
+               size_t seglen = iov->iov_len;
                unsigned char __user *from = iov->iov_base;
 
                iov++;
@@ -2389,7 +2392,12 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
                err = tp->af_specific->md5_parse(sk, optval, optlen);
                break;
 #endif
-
+       case TCP_USER_TIMEOUT:
+               /* Cap the max timeout in ms TCP will retry/retrans
+                * before giving up and aborting (ETIMEDOUT) a connection.
+                */
+               icsk->icsk_user_timeout = msecs_to_jiffies(val);
+               break;
        default:
                err = -ENOPROTOOPT;
                break;
@@ -2608,6 +2616,10 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
        case TCP_THIN_DUPACK:
                val = tp->thin_dupack;
                break;
+
+       case TCP_USER_TIMEOUT:
+               val = jiffies_to_msecs(icsk->icsk_user_timeout);
+               break;
        default:
                return -ENOPROTOOPT;
        }