linux-kernel - Re: [PATCH] x86: Add check for number of available vectors before CPU down [v3]

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Message-ID: <52B4DC15.6090004@zytor.com>
Date:	Fri, 20 Dec 2013 16:08:53 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Luck, Tony" <tony.luck@...el.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Prarit Bhargava <prarit@...hat.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"x86@...nel.org" <x86@...nel.org>,
	Michel Lespinasse <walken@...gle.com>,
	Seiji Aguchi <seiji.aguchi@....com>,
	"Zhang, Yang Z" <yang.z.zhang@...el.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	"Morgan, Janet" <janet.morgan@...el.com>,
	"ruiv.wang@...il.com" <ruiv.wang@...il.com>,
	"gong.chen@...ux.intel.com" <gong.chen@...ux.intel.com>
Subject: Re: [PATCH] x86: Add check for number of available vectors before
 CPU down [v3]

On 12/20/2013 03:06 PM, Luck, Tony wrote:
>> I haven't double checked, but I'm assuming the hot plug locks are held
>> while you are doing this.
> 
> I dug into that when looking at v2 - the whole thing is under "stop_machine()"
> so locking was not an issue.
> 
> Reviewed-by: Tony Luck <tony.luck@...el.com>
> 

Awesome, thank you!  I have queued this up for Linus already as a fix
for 3.13, as it seems important enough.

	-hpa


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