tree db487b4ae184e7e6b90e2623c371f8a09edec830
parent 5b0ac72bc5fdda9634fb07db4cb0237fa9b6df68
author Stephen Hemminger <shemminger@vyatta.com> 1200911029 -0800
committer David S. Miller <davem@davemloft.net> 1201561720 -0800

[PKT_SCHED] dsmark: handle cloned and non-linear skb's

Make dsmark work properly with non-linear and cloned skb's
Before modifying the header, it needs to check that skb header is
writeable.

Note: this makes the assumption, that if it queues a good skb
then a good skb will come out of the embedded qdisc.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>