Re: [PATCH 13/23] io-controller: Separate out queue and data

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Vivek Goyal wrote:
> o So far noop, deadline and AS had one common structure called *_data which
>   contained both the queue information where requests are queued and also
>   common data used for scheduling. This patch breaks down this common
>   structure in two parts, *_queue and *_data. This is along the lines of
>   cfq where all the reuquests are queued in queue and common data and tunables
>   are part of data.
> 
> o It does not change the functionality but this re-organization helps once
>   noop, deadline and AS are changed to use hierarchical fair queuing.
> 
> o looks like queue_empty function is not required and we can check for
>   q->nr_sorted in elevator layer to see if ioscheduler queues are empty or
>   not.
> 
> 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>

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