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Date: Thu, 8 Jun 2017 10:31:25 +0200
From: Ingo Molnar <mingo@kernel.org>
To: luca abeni <luca.abeni@santannapisa.it>
Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>, Juri Lelli <juri.lelli@arm.com>,
        Claudio Scordino <claudio@evidence.eu.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Tommaso Cucinotta <tommaso.cucinotta@sssup.it>,
        Daniel Bristot de Oliveira <bristot@redhat.com>,
        Joel Fernandes <joelaf@google.com>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Luca Abeni <luca.abeni@unitn.it>
Subject: Re: [PATCH 01/10] sched/deadline: track the active utilization
Message-ID: <20170608083125.6cum2zoklnzi2mbx@gmail.com>
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* luca abeni <luca.abeni@santannapisa.it> wrote:

> From: Luca Abeni <luca.abeni@unitn.it>
> 
> Active utilization is defined as the total utilization of active
> (TASK_RUNNING) tasks queued on a runqueue. Hence, it is increased
> when a task wakes up and is decreased when a task blocks.
> 
> When a task is migrated from CPUi to CPUj, immediately subtract the
> task's utilization from CPUi and add it to CPUj. This mechanism is
> implemented by modifying the pull and push functions.
> Note: this is not fully correct from the theoretical point of view
> (the utilization should be removed from CPUi only at the 0 lag
> time), a more theoretically sound solution is presented in the
> next patches.
> 
> Signed-off-by: Juri Lelli <juri.lelli@arm.com>
> Signed-off-by: Luca Abeni <luca.abeni@unitn.it>
> Tested-by: Daniel Bristot de Oliveira <bristot@redhat.com>

So that SOB chain is not valid - either Juri needs to be the From: author, or it 
should be an Acked-by (or Reviewed-by).

For now I've converted this to:

> Signed-off-by: Luca Abeni <luca.abeni@unitn.it>
> Acked-by: Juri Lelli <juri.lelli@arm.com>

Please holler if you'd like something else.

Thanks,

	Ingo