linux-kernel - Re: [PATCH v3 2/6] ANDROID: binder: add min sched

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Message-ID: <20171115130210.y37o3bpyqoo6jgzb@hirez.programming.kicks-ass.net>
Date:   Wed, 15 Nov 2017 14:02:10 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Martijn Coenen <maco@...roid.com>
Cc:     gregkh@...uxfoundation.org, john.stultz@...aro.org,
        tkjos@...gle.com, arve@...roid.com, sherryy@...roid.com,
        tglx@...utronix.de, amit.pundir@...aro.org,
        linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        maco@...gle.com
Subject: Re: [PATCH v3 2/6] ANDROID: binder: add min sched_policy to node.

On Thu, Oct 26, 2017 at 04:07:46PM +0200, Martijn Coenen wrote:
> This change adds flags to flat_binder_object.flags
> to allow indicating a minimum scheduling policy for
> the node. It also clarifies the valid value range
> for the priority bits in the flags.
> 
> Internally, we use the priority map that the kernel
> uses, e.g. [0..99] for real-time policies and [100..139]
> for the SCHED_NORMAL/SCHED_BATCH policies.

I will break that without consideration if I have to. That really isn't
something anybody outside of the core code should rely on.