Re: [Xen-devel] [PATCH] remus: fix check for installed qdiscs on ifb

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Shriram Rajagopalan writes ("[Xen-devel] [PATCH] remus: fix check for installed 
qdiscs on ifb"):
> remus: fix check for installed qdiscs on ifb

Thanks.

> current check includes ingress and pfifo_fast.
> Add mq to the list of allowed qdiscs already installed
> on ifb. This patch fixes cases where remus fails to start,
> due to an mq qdisc already present on the vif.

Forgive me for being dense, but I don't understand this at all.  What
is the problem caused by pre-existing qdiscs that the code is trying
to avoid, and why are these particular qdiscs OK ?

Thanks,
Ian.

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