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blkio: Introduce the root service tree for cfq groups
authorVivek Goyal <vgoyal@redhat.com>
Thu, 3 Dec 2009 17:59:41 +0000 (12:59 -0500)
committerJens Axboe <jens.axboe@oracle.com>
Thu, 3 Dec 2009 18:28:51 +0000 (19:28 +0100)
commitf5c13935424b920ffc5d1573d1bfd0056d357f16
tree1e6d9e0ed1bd61f7f8f71a7191815be2ab65aac3tree | snapshot
parentf8a02a9e62cb16e413b73f6c8a72dd68f1ff7aedcommit | diff
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>
block/cfq-iosched.c diff | blob | history
Linux Kernel Source Tree.