Re: [PATCH RFC 4/6] tun: orphan frags on xmit
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2012-05-08 14:36:27
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
On Mon, May 07, 2012 at 04:54:46PM +0300, Michael S. Tsirkin wrote:
tun xmit is actually receive of the internal tun socket. Orphan the frags same as we do for normal rx path. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If tun is built as a module, skb_copy_ubufs needs to be exported: ----> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> ---
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 83b04d9..a809014 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c@@ -765,7 +765,7 @@ int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask) skb_shinfo(skb)->tx_flags &= ~SKBTX_DEV_ZEROCOPY; return 0; } - +EXPORT_SYMBOL_GPL(skb_copy_ubufs); /** * skb_clone - duplicate an sk_buff