Re: [PATCH] skbuff: Add new tc classify variable

From: Simon Wunderlich <redacted>
Date: Tue,  7 Feb 2012 19:39:08 +0100

The linux traffic control mechanism has different ways to select the
correct class of a qdisc. A common way to do this is to use tc filters
that are directly attached to a qdisc. Another approach is to use the
iptables classify module. The latter one can reduce the amount of work
necessary to process a packet when iptables is already involved in the
packet classification.

Do not bloat up sk_buff any more.  Add this, and the other existing
tc_* members to the qdisc SKB control block instead.