Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

[linux-2.6-omap-h63xx.git] / net / ipv4 / tcp.c

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index f28acf11fc67d419bc0ccab57510c8bcedee1c3e..ce572f9dff023529e6aaea9dcea9aa9476a9746d 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -580,10 +580,6 @@ ssize_t tcp_splice_read(struct socket *sock, loff_t *ppos,
                else if (!ret) {
                        if (spliced)
                                break;
-                       if (flags & SPLICE_F_NONBLOCK) {
-                               ret = -EAGAIN;
-                               break;
-                       }
                        if (sock_flag(sk, SOCK_DONE))
                                break;
                        if (sk->sk_err) {
@@ -1317,7 +1313,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
                if ((available < target) &&
                    (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) &&
                    !sysctl_tcp_low_latency &&
-                   __get_cpu_var(softnet_data).net_dma) {
+                   dma_find_channel(DMA_MEMCPY)) {
                        preempt_enable_no_resched();
                        tp->ucopy.pinned_list =
                                        dma_pin_iovec_pages(msg->msg_iov, len);
@@ -1527,7 +1523,7 @@ do_prequeue:
                if (!(flags & MSG_TRUNC)) {
 #ifdef CONFIG_NET_DMA
                        if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
-                               tp->ucopy.dma_chan = get_softnet_dma();
+                               tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY);
 
                        if (tp->ucopy.dma_chan) {
                                tp->ucopy.dma_cookie = dma_skb_copy_datagram_iovec(
@@ -1632,7 +1628,6 @@ skip_copy:
 
                /* Safe to free early-copied skbs now */
                __skb_queue_purge(&sk->sk_async_wait_queue);
-               dma_chan_put(tp->ucopy.dma_chan);
                tp->ucopy.dma_chan = NULL;
        }
        if (tp->ucopy.pinned_list) {
@@ -2519,9 +2514,7 @@ found:
        flush |= memcmp(th + 1, th2 + 1, thlen - sizeof(*th));
 
        total = p->len;
-       mss = total;
-       if (skb_shinfo(p)->frag_list)
-               mss = skb_shinfo(p)->frag_list->len;
+       mss = skb_shinfo(p)->gso_size;
 
        flush |= skb->len > mss || skb->len <= 0;
        flush |= ntohl(th2->seq) + total != ntohl(th->seq);
@@ -2548,6 +2541,7 @@ out:
 
        return pp;
 }
+EXPORT_SYMBOL(tcp_gro_receive);
 
 int tcp_gro_complete(struct sk_buff *skb)
 {
@@ -2557,7 +2551,6 @@ int tcp_gro_complete(struct sk_buff *skb)
        skb->csum_offset = offsetof(struct tcphdr, check);
        skb->ip_summed = CHECKSUM_PARTIAL;
 
-       skb_shinfo(skb)->gso_size = skb_shinfo(skb)->frag_list->len;
        skb_shinfo(skb)->gso_segs = NAPI_GRO_CB(skb)->count;
 
        if (th->cwr)
@@ -2565,6 +2558,7 @@ int tcp_gro_complete(struct sk_buff *skb)
 
        return 0;
 }
+EXPORT_SYMBOL(tcp_gro_complete);
 
 #ifdef CONFIG_TCP_MD5SIG
 static unsigned long tcp_md5sig_users;