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

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Message-ID: <1330505894.11248.108.camel@twins>
Date:	Wed, 29 Feb 2012 09:58:14 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	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>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] cpumask: fix lg_lock/br_lock.

On Wed, 2012-02-29 at 09:29 +0100, Ingo Molnar wrote:
> As part of any cleanup they should first be converted from 
> arch_spinlock_t to regular spinlock_t - I bet if that is done 
> then that not only simplifies the wrappers massively, it also 
> turns the above soft lockup report into a nice, actionable 
> lockdep splat. 

It might help if you'd actually read the code.. that will simply not
work.
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