tree 54f01cd1163bb552d5e1a647069663c4a28a1396
parent f7383c22246cfccbe912541dd83103009ed2b537
author Evgeniy Polyakov <johnpol@2ka.mipt.ru> 1116481905 -0700
committer David S. Miller <davem@davemloft.net> 1116481905 -0700

[XFRM]: skb_cow_data() does not set proper owner for new skbs.

It looks like skb_cow_data() does not set 
proper owner for newly created skb.

If we have several fragments for skb and some of them
are shared(?) or cloned (like in async IPsec) there 
might be a situation when we require recreating skb and 
thus using skb_copy() for it.
Newly created skb has neither a destructor nor a socket
assotiated with it, which must be copied from the old skb.
As far as I can see, current code sets destructor and socket
for the first one skb only and uses truesize of the first skb
only to increment sk_wmem_alloc value.

If above "analysis" is correct then attached patch fixes that.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>