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| author |   Tejun Heo <tj@kernel.org> | 2012-04-13 13:11:32 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2012-04-20 10:06:06 +0200 |
| commit | 03d8e11142a893ad322285d3c8a08e88b570cda1 (patch) | |
| tree | 0f6117ffdb0ad9565a165a98a8d4985ced094eb1 /block/elevator.c | |
| parent | blkcg: make request_queue bypassing on allocation (diff) | |
| download | linux-dev-03d8e11142a893ad322285d3c8a08e88b570cda1.tar.xz linux-dev-03d8e11142a893ad322285d3c8a08e88b570cda1.zip | |
blkcg: add request_queue->root_blkg
With per-queue policy activation, root blkg creation will be moved to
blkcg core. Add q->root_blkg in preparation. For blk-throtl, this
replaces throtl_data->root_tg; however, cfq needs to keep
cfqd->root_group for !CONFIG_CFQ_GROUP_IOSCHED.
This is to prepare for per-queue policy activation and doesn't cause
any functional difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/elevator.c')
0 files changed, 0 insertions, 0 deletions