Re: [WIP BRANCH] cgroups support in bfq-mq WIP branch

[Jens Axboe]

On 03/02/2017 03:15 AM, Paolo Valente wrote:
> 
>> Il giorno 25 feb 2017, alle ore 19:52, Jens Axboe <axboe@xxxxxxxxx> ha scritto:
>>
>> On 02/25/2017 10:44 AM, Paolo Valente wrote:
>>> Hi,
>>> I've just completed cgroups support, and I'd like to highlight the
>>> main blk-mq issue that I have found along the way.  I have pushed the
>>> commit that completes the support for cgroups to the usual WIP branch
>>> [1].  Before moving to this issue, I have preliminary question about
>>> the scheduler name, since I'm about to start preparing the patch
>>> series for submission.  So far, I have used bfq-mq as a temporary
>>> name.  Are we fine with it, or should I change it, for example, to
>>> just bfq?  Jens?
>>
>> Just call it 'bfq', that doesn't conflict with anything that's
>> in the kernel already.
>>
> 
> ok
> 
>>> I've found a sort of circular dependency in blk-mq, related to
>>> scheduler initialization.  To describe both the issue and how I've
>>> addressed it, I'm pasting the message of the new commit.
>>
>> Rebase your patches on top of Linus current master, some of them
>> will need to change and some can be dropped.
>>
> 
> Done, but the last deadlock issue shows up again :( To help you get
> context, I'm going to reply to the email in which your sent the patch that
> solved it.

OK, I got that sent to you. When you have tested it, just add it as
a prep patch in your series. If it works for you, then let me know
and I'll add your Tested-by: to that patch and post it for more
thorough review.

-- 
Jens Axboe