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Date: Fri, 21 Apr 2017 12:17:05 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Juri Lelli <juri.lelli@arm.com>
Cc: luca abeni <luca.abeni@santannapisa.it>, linux-kernel@vger.kernel.org,
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        Mathieu Poirier <mathieu.poirier@linaro.org>
Subject: Re: [PATCH] sched/deadline: fix switching to -deadline
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On Fri, Apr 21, 2017 at 10:47:29AM +0100, Juri Lelli wrote:

> Oh, I think it works "by coincidence", as ENQUEUE_RESTORE == DEQUEUE_SAVE
> == 0x02 ? :)

That's very much on purpose, also see:

#define DEQUEUE_SAVE            0x02 /* matches ENQUEUE_RESTORE */