| commit | 03d8e11142a893ad322285d3c8a08e88b570cda1 | |
| author | Tejun Heo <tj@kernel.org> | |
| Fri, 13 Apr 2012 20:11:32 +0000 (13 13:11 -0700) | ||
| committer | Jens Axboe <axboe@kernel.dk> | |
| Fri, 20 Apr 2012 08:06:06 +0000 (20 10:06 +0200) | ||
| tree | 0f6117ffdb0ad9565a165a98a8d4985ced094eb1 | treesnapshot (tar.gz zip) |
| parent | b82d4b197c782ced82a8b7b76664125d2d3c156c | commitdiff |
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>
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>
| block/blk-throttle.c | diffblobblamehistory | |
| block/cfq-iosched.c | diffblobblamehistory | |
| include/linux/blkdev.h | diffblobblamehistory |