linux-kernel - Re: [patch 2/3] blk/mq/cpu-notif: Convert to hotplug state machine

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Date:   Tue, 20 Sep 2016 00:24:21 +0200
From:   Christoph Hellwing <hch@....de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-block@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>, Christoph Hellwing <hch@....de>,
        Sebastian Siewior <bigeasy@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>, rt@...utronix.de
Subject: Re: [patch 2/3] blk/mq/cpu-notif: Convert to hotplug state machine

On Mon, Sep 19, 2016 at 09:28:20PM -0000, Thomas Gleixner wrote:
> From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
> 
> Install the callbacks via the state machine so we can phase out the cpu
> hotplug notifiers..

Didn't Sebastian come up with a version of the hotplug state callbacks
that can be per-object?  This seems to be a perfect candidate for that.