cfq-iosched: sort RT queues into the rbtree
Jens Axboe authored

Currently CFQ does a linked insert into the current list for RT
queues. We can just factor the class into the rb insertion,
and then we don't have to treat RT queues in a special way. It's
faster, too.
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
0c534e0a