[ANNOUNCE] bfq-v3r3 for 3.3 is ready

[Paolo Valente]

Hi,
at last this new version is ready, thanks to the hard work of Arianna
Avanzini, who prepared the initial port to 3.3, took the opportunity to
improve latency a bit more and fixed the bug reported below. This is the
changelog for this new version:

- Bugfix: removed an important error causing occasional kernel panics when
moving a process to a new cgroup. The panic occurred if:
1) the queue associated to the process was idle when the process was
moved
and
2) a new disk request was inserted into the queue just after the move.

- Further latency improvement through a better treatment of low-bandwidth
async queues.

Unfortunately, the above bug is present in all previous versions of BFQ.
The functionality affected by this bug seems however to be rarely used,
as we have not yet received any report of this panic. We will be glad to
fix the bug in each version for which someone will ask as to do.

Paolo