diff options
| author |   Gui Jianfeng <guijianfeng@cn.fujitsu.com> | 2010-12-17 08:57:14 +0100 |
|---|---|---|
| committer |   Jens Axboe <jaxboe@fusionio.com> | 2010-12-17 08:57:14 +0100 |
| commit | 7278c9c19bd85cf33213a2e0b538a18d3ac8ad00 (patch) | |
| tree | e080ada1f8cc00fef4600976f8cf489cc94d1c03 /fs/char_dev.c | |
| parent | fs/splice: Pull buf->ops->confirm() from splice_from_pipe actors (diff) | |
| download | linux-dev-7278c9c19bd85cf33213a2e0b538a18d3ac8ad00.tar.xz linux-dev-7278c9c19bd85cf33213a2e0b538a18d3ac8ad00.zip | |
cfq-iosched: don't check cfqg in choose_service_tree()
When cfq_choose_cfqg() is called in select_queue(), there must be at least one
backlogged CFQ queue waiting for dispatching, hence there must be at least one
backlogged CFQ group on service tree. So we never call choose_service_tree()
with cfqg == NULL.
Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'fs/char_dev.c')
0 files changed, 0 insertions, 0 deletions