linux-kernel - Re: [tip:smp/hotplug] cpu/hotplug: Add sysfs state interface

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Date:	Wed, 2 Mar 2016 13:40:47 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	bigeasy@...utronix.de, rafael.j.wysocki@...el.com,
	tglx@...utronix.de, torvalds@...ux-foundation.org, pjt@...gle.com,
	hpa@...or.com, paulmck@...ux.vnet.ibm.com, oleg@...hat.com,
	arjan@...ux.intel.com, linux-kernel@...r.kernel.org, tj@...nel.org,
	akpm@...ux-foundation.org, mingo@...nel.org, rusty@...tcorp.com.au,
	rostedt@...dmis.org, srivatsa@....edu, riel@...hat.com
Cc:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:smp/hotplug] cpu/hotplug: Add sysfs state interface

On Tue, Mar 01, 2016 at 11:54:37AM -0800, tip-bot for Thomas Gleixner wrote:
> Commit-ID:  98f8cdce1db580b99fce823a48eea2cb2bdb261e
> Gitweb:     http://git.kernel.org/tip/98f8cdce1db580b99fce823a48eea2cb2bdb261e
> Author:     Thomas Gleixner <tglx@...utronix.de>
> AuthorDate: Fri, 26 Feb 2016 18:43:31 +0000
> Committer:  Thomas Gleixner <tglx@...utronix.de>
> CommitDate: Tue, 1 Mar 2016 20:36:55 +0100
> 
> cpu/hotplug: Add sysfs state interface
> 
> Add a sysfs interface so we can actually see in which state the cpus are in.

I feel this Changelog can use a few extra lines to explain the ABI
ramifications and why this lives here and not in drivers/base/cpu.c
where the rest of the cpu_subsys muck lives.