From: Patrick McHardy <kaber@trash.net>
Date: Tue, 15 Jul 2008 02:25:32 +0200

quoted text
> Unfortunately that seems to imply that anything but the really
> simple qdiscs can't be used transparently in combination with
> multiqueue without breaking configurations.

I think we can fix this after the merge window :)

One idea is to allow all of the queues to point at a
single qdisc.  We'd just need to work out how to do the
locking.

For example, the Qdisc has a lock member, and a pointer.
For simple qdiscs the pointer points at the netdev_queue
lock.  But when sharing, we use the in-Qdisc static lock.
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