tree 1e6d9e0ed1bd61f7f8f71a7191815be2ab65aac3
parent f04a64246344ad50e4b4b4186174a0912d07f30b
author Vivek Goyal <vgoyal@redhat.com> 1259863181 -0500
committer Jens Axboe <jens.axboe@oracle.com> 1259864931 +0100

blkio: Introduce the root service tree for cfq groups

o So far we just had one cfq_group in cfq_data. To create space for more than
  one cfq_group, we need to have a service tree of groups where all the groups
  can be queued if they have active cfq queues backlogged in these.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>