linux-kernel - Re: [PATCH] sched/deadline: fix switching to -deadline

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Message-ID: <20170421101825.mffgoffssy4krtxg@hirez.programming.kicks-ass.net>
Date:   Fri, 21 Apr 2017 12:18:25 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     luca abeni <luca.abeni@...tannapisa.it>
Cc:     Juri Lelli <juri.lelli@....com>, linux-kernel@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        Claudio Scordino <claudio@...dence.eu.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Tommaso Cucinotta <tommaso.cucinotta@...up.it>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
Subject: Re: [PATCH] sched/deadline: fix switching to -deadline

On Fri, Apr 21, 2017 at 11:59:07AM +0200, luca abeni wrote:

> Not sure if this is a conincidence... By looking at the comments in
> sched/sched.h I got the impression the two values match by design (and
> __sched_setscheduler() is using this property to simplify the code :)

Exactly. Makes things simpler if they line up properly, because then you
can use the same flags for dequeue and enqueue.