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Subject[PATCH 3.16 166/204] netfilter/ipvs: clear ipvs_property flag when SKB net namespace changed
3.16.52-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Ye Yin <hustcat@gmail.com>

commit 2b5ec1a5f9738ee7bf8f5ec0526e75e00362c48f upstream.

When run ipvs in two different network namespace at the same host, and one
ipvs transport network traffic to the other network namespace ipvs.
'ipvs_property' flag will make the second ipvs take no effect. So we should
clear 'ipvs_property' when SKB network namespace changed.

Fixes: 621e84d6f373 ("dev: introduce skb_scrub_packet()")
Signed-off-by: Ye Yin <hustcat@gmail.com>
Signed-off-by: Wei Zhou <chouryzhou@gmail.com>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
include/linux/skbuff.h | 7 +++++++
net/core/skbuff.c | 1 +
2 files changed, 8 insertions(+)

--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2965,6 +2965,13 @@ static inline void nf_reset_trace(struct
#endif
}

+static inline void ipvs_reset(struct sk_buff *skb)
+{
+#if IS_ENABLED(CONFIG_IP_VS)
+ skb->ipvs_property = 0;
+#endif
+}
+
/* Note: This doesn't put any conntrack and bridge info in dst. */
static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
{
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3961,6 +3961,7 @@ void skb_scrub_packet(struct sk_buff *sk
if (!xnet)
return;

+ ipvs_reset(skb);
skb_orphan(skb);
skb->mark = 0;
}
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