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Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index bd6ff907d9e4..ce572f9dff02 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1313,7 +1313,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
1313 if ((available < target) && 1313 if ((available < target) &&
1314 (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) && 1314 (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) &&
1315 !sysctl_tcp_low_latency && 1315 !sysctl_tcp_low_latency &&
1316 __get_cpu_var(softnet_data).net_dma) { 1316 dma_find_channel(DMA_MEMCPY)) {
1317 preempt_enable_no_resched(); 1317 preempt_enable_no_resched();
1318 tp->ucopy.pinned_list = 1318 tp->ucopy.pinned_list =
1319 dma_pin_iovec_pages(msg->msg_iov, len); 1319 dma_pin_iovec_pages(msg->msg_iov, len);
@@ -1523,7 +1523,7 @@ do_prequeue:
1523 if (!(flags & MSG_TRUNC)) { 1523 if (!(flags & MSG_TRUNC)) {
1524#ifdef CONFIG_NET_DMA 1524#ifdef CONFIG_NET_DMA
1525 if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list) 1525 if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list)
1526 tp->ucopy.dma_chan = get_softnet_dma(); 1526 tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY);
1527 1527
1528 if (tp->ucopy.dma_chan) { 1528 if (tp->ucopy.dma_chan) {
1529 tp->ucopy.dma_cookie = dma_skb_copy_datagram_iovec( 1529 tp->ucopy.dma_cookie = dma_skb_copy_datagram_iovec(
@@ -1628,7 +1628,6 @@ skip_copy:
1628 1628
1629 /* Safe to free early-copied skbs now */ 1629 /* Safe to free early-copied skbs now */
1630 __skb_queue_purge(&sk->sk_async_wait_queue); 1630 __skb_queue_purge(&sk->sk_async_wait_queue);
1631 dma_chan_put(tp->ucopy.dma_chan);
1632 tp->ucopy.dma_chan = NULL; 1631 tp->ucopy.dma_chan = NULL;
1633 } 1632 }
1634 if (tp->ucopy.pinned_list) { 1633 if (tp->ucopy.pinned_list) {