[RFC PATCH net-next 3/4] veth: backup classid befor switch net_ns
From: Libo Chen <hidden>
Date: 2014-01-03 03:13:03
Also in:
cgroups, lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
dev_forward_skb will clear skb->sk, so we need save classid before that, otherwise the skb can not be under control by net_cls. Signed-off-by: Libo Chen <redacted> --- drivers/net/veth.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 2ec2041..ce43a2d 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c@@ -18,6 +18,7 @@ #include <net/xfrm.h> #include <linux/veth.h> #include <linux/module.h> +#include <net/cls_cgroup.h> #define DRV_NAME "veth" #define DRV_VERSION "1.0"
@@ -123,6 +124,12 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev) rcv->features & NETIF_F_RXCSUM) skb->ip_summed = CHECKSUM_UNNECESSARY; + /** + * dev_forward_sbk will clear skb->sk, so save + * skb->sk->sk_classid for Qos + */ + bk_cls_classid(skb); + if (likely(dev_forward_skb(rcv, skb) == NET_RX_SUCCESS)) { struct pcpu_vstats *stats = this_cpu_ptr(dev->vstats);
--
1.8.2.2