linux-kernel - Re: [PATCH] cpumask: fix lg_lock/br

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Message-ID: <4F4DBB26.2060907@linux.vnet.ibm.com>
Date:	Wed, 29 Feb 2012 11:14:06 +0530
From:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Ingo Molnar <mingo@...e.hu>, Rusty Russell <rusty@...tcorp.com.au>,
	Nick Piggin <npiggin@...nel.dk>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andi Kleen <ak@...ux.intel.com>, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] cpumask: fix lg_lock/br_lock.

Hi Andrew,

On 02/29/2012 02:57 AM, Andrew Morton wrote:

> On Tue, 28 Feb 2012 09:43:59 +0100
> Ingo Molnar <mingo@...e.hu> wrote:
> 
>> This patch should also probably go upstream through the 
>> locking/lockdep tree? Mind sending it us once you think it's 
>> ready?
> 
> Oh goody, that means you own
> http://marc.info/?l=linux-kernel&m=131419353511653&w=2.
>


That bug got fixed sometime around Dec 2011. See commit e30e2fdf
(VFS: Fix race between CPU hotplug and lglocks)

> I do think the brlock code is sick, but Nick has turned into an ex-Nick
> and nobody works on it.
> 

 
Regards,
Srivatsa S. Bhat

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