linux-kernel - Re: [RFC PATCH] kernel: sched: Provide a pointer to the valid CPU mask

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Message-ID: <20170406123112.4bhnnolp4churnm6@hirez.programming.kicks-ass.net>
Date:   Thu, 6 Apr 2017 14:31:12 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        linux-kernel@...r.kernel.org, Mike Galbraith <efault@....de>,
        Ingo Molnar <mingo@...e.hu>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>
Subject: Re: [RFC PATCH] kernel: sched: Provide a pointer to the valid CPU
 mask

On Thu, Apr 06, 2017 at 01:56:12PM +0200, Thomas Gleixner wrote:

> A pointer to the effective mask is definitely enough. And that's what we
> need for migrate_disable() as well. That still leaves the storage
> requirement to MIPS.

So then you're back to Ingo's proposal, right?