Re: Block layer state diagrams

[Jens Axboe <axboe@fb.com>]

On 10/27/2016 04:37 PM, Bart Van Assche wrote:
> On 10/26/2016 10:45 PM, Hannes Reinecke wrote:
>> On 10/26/2016 10:21 PM, Bart Van Assche wrote:
>>> Some time ago I created the attached state diagrams for myself to avoid
>>> that I would have to reread the entire block layer core source code if
>>> it has been a while since I had a look at it. Do you think it would be
>>> useful to add these diagrams somewhere in the Documentation directory?
>>>
>> Can you add a step for the mapping between software and
>> hardware queues?
>> Also the actual submission to the LLDD (in step 'executing') could do
>> with a bit more emphasis.
>> And maybe the fontsize could be a tad smaller; currently it's hard to
>> figure out which label goes where, expecially in the bottom half.
>
> Thanks Hannes for the review. How about the attached second version of
> these diagrams?

I think they are a little confusing. Some of it is specific to non-fs
requests, yet you have the plugging path in there as well. Was the
intent to just show the PC path?

-- 
Jens Axboe