[PATCH RFC 4/6] tun: orphan frags on xmit
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2012-05-07 13:54:45
Subsystem:
networking drivers, the rest, tun/tap driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Willem de Bruijn, Jason Wang
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> --- drivers/net/tun.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index bb8c72c..1ccbfd0 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c@@ -414,6 +414,8 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev) /* Orphan the skb - required as we might hang on to it * for indefinite time. */ + if (unlikely(skb_orphan_frags(skb, GFP_ATOMIC))) + goto drop; skb_orphan(skb); /* Enqueue packet */
--
MST