Vivek Goyal wrote:
Elevator layer now has support for hierarchical fair queuing. cfq has been migrated to make use of it and now it is time to do groundwork for noop, deadline and AS. noop deadline and AS don't maintain separate queues for different processes. There is only one single queue. Effectively one can think that in hierarchical setup, there will be one queue per cgroup where requests from all the processes in the cgroup will be queued. Generally io scheduler takes care of creating queues. Because there is only one queue here, we have modified common layer to take care of queue creation and some other functionality. This special casing helps in keeping the changes to noop, deadline and AS to the minimum. Signed-off-by: Nauman Rafique <nauman@xxxxxxxxxx> Signed-off-by: Gui Jianfeng <guijianfeng@xxxxxxxxxxxxxx> Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
Acked-by: Rik van Riel <riel@xxxxxxxxxx> -- All rights reversed. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
