Merge branch 'fq_codel-small-optimizations'

Dave Taht says:

====================
Two small fq_codel optimizations

These two patches improve fq_codel performance
under extreme network loads. The first patch
more rapidly escalates the codel count under
overload, the second just kills a totally useless
statistic.

(sent together because they'd otherwise conflict)
====================

Signed-off-by: Dave Taht <dave.taht@gmail.com>

Signed-off-by: David S. Miller <davem@davemloft.net>